/* ==========================================================================
   Axiom CSS Design System
   ========================================================================== */

:root {
    /* Color Palette */
    --color-bg-cream: #FAF8F5;
    --color-bg-dark: #121212;
    --color-bg-card-dark: #1E1E1E;
    
    --color-blue: #1C62F2;
    --color-blue-dark: #124BC2;
    --color-terracotta: #D6513C;
    --color-yellow: #FFF176;
    --color-pink: #FBCFE8;
    --color-accent-blue: #3B82F6;
    
    --color-text-dark: #121212;
    --color-text-muted: #666666;
    --color-text-light: #FFFFFF;
    --color-border-dark: rgba(18, 18, 18, 0.1);
    --color-border-light: rgba(255, 255, 255, 0.15);
    
    /* Fonts */
    --font-serif: 'Cormorant Garamond', serif;
    --font-sans: 'Plus Jakarta Sans', sans-serif;
    
    /* Animation & Transitions */
    --transition-smooth: all 0.6s cubic-bezier(0.16, 1, 0.3, 1);
    --transition-fast: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
    
    /* Spacing & Layout */
    --navbar-height: 80px;
    --border-radius-lg: 24px;
    --border-radius-md: 16px;
    --border-radius-sm: 8px;
    --border-radius-full: 9999px;
    
    --shadow-premium: 0 20px 40px rgba(0, 0, 0, 0.05);
    --shadow-float: 0 30px 60px rgba(0, 0, 0, 0.08);
}

/* ==========================================================================
   Base Styles & Reset
   ========================================================================== */

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
    background-color: var(--color-bg-cream);
    color: var(--color-text-dark);
    font-family: var(--font-sans);
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
}

body {
    overflow-x: hidden;
}

a {
    color: inherit;
    text-decoration: none;
}

ul {
    list-style: none;
}

img, svg {
    display: block;
    max-width: 100%;
}

button, input {
    font-family: inherit;
    border: none;
    outline: none;
    background: none;
}

/* ==========================================================================
   Typography Utilities
   ========================================================================== */

h1, h2, h3, h4, .logo {
    font-family: var(--font-serif);
    font-weight: 500;
    line-height: 1.1;
}

/* ==========================================================================
   Button System
   ========================================================================== */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 14px 28px;
    font-family: var(--font-sans);
    font-weight: 600;
    font-size: 0.95rem;
    border-radius: var(--border-radius-full);
    cursor: pointer;
    transition: var(--transition-fast);
}

.btn-primary {
    background-color: var(--color-bg-dark);
    color: var(--color-text-light);
    border: 1px solid var(--color-bg-dark);
}

.btn-primary:hover {
    background-color: transparent;
    color: var(--color-text-dark);
    transform: translateY(-2px);
}

.btn-secondary {
    background-color: var(--color-text-light);
    color: var(--color-text-dark);
    border: 1px solid var(--color-text-light);
}

.btn-secondary:hover {
    background-color: transparent;
    color: var(--color-text-light);
    transform: translateY(-2px);
}

.btn-dark {
    background-color: var(--color-bg-dark);
    color: var(--color-text-light);
    border: 1px solid var(--color-bg-dark);
    width: 100%;
}

.btn-dark:hover {
    background-color: transparent;
    color: var(--color-text-dark);
}

/* ==========================================================================
   Header / Navigation Bar
   ========================================================================== */

.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: var(--navbar-height);
    background-color: rgba(250, 248, 245, 0.8);
    backdrop-filter: blur(15px);
    -webkit-backdrop-filter: blur(15px);
    border-bottom: 1px solid var(--color-border-dark);
    z-index: 1000;
    transition: var(--transition-fast);
}

.navbar.nav-hidden {
    transform: translateY(-100%);
}

.navbar.nav-scrolled {
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.02);
}

.navbar-container {
    max-width: 1400px;
    height: 100%;
    margin: 0 auto;
    padding: 0 40px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo {
    font-size: 2.2rem;
    font-weight: 600;
    letter-spacing: -0.5px;
    color: var(--color-text-dark);
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 40px;
}

.nav-link {
    font-family: var(--font-sans);
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--color-text-dark);
    position: relative;
    padding: 8px 0;
    opacity: 0.8;
    transition: var(--transition-fast);
}

.nav-link:hover {
    opacity: 1;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 1.5px;
    background-color: var(--color-text-dark);
    transform: scaleX(0);
    transform-origin: right;
    transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.nav-link:hover::after {
    transform: scaleX(1);
    transform-origin: left;
}

/* ==========================================================================
   Hero Section
   ========================================================================== */

.hero-section {
    padding-top: calc(var(--navbar-height) + 60px);
    padding-bottom: 100px;
    min-height: 95vh;
    display: flex;
    align-items: center;
    background: radial-gradient(circle at var(--mouse-x, 50%) var(--mouse-y, 50%), rgba(28, 98, 242, 0.05) 0%, var(--color-bg-cream) 55%);
    transition: background 0.1s ease-out;
}

.hero-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
    width: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}

.hero-text-content {
    max-width: 800px;
    margin-bottom: 70px;
}

.hero-title {
    font-size: 5rem;
    line-height: 1.05;
    margin-bottom: 24px;
    letter-spacing: -1.5px;
    color: var(--color-text-dark);
}

.hero-subtitle {
    font-size: 1.25rem;
    line-height: 1.6;
    color: var(--color-text-muted);
    max-width: 600px;
    margin: 0 auto;
}

/* Visual Phone and Badges */
.hero-visual-wrapper {
    position: relative;
    width: 320px;
    height: 480px;
    margin-top: 20px;
    z-index: 10;
    perspective: 1200px;
    transform-style: preserve-3d;
}

/* 3D Phone Container */
.phone-3d-wrapper {
    position: absolute;
    width: 100%;
    height: 100%;
    left: 0;
    top: 0;
    perspective: 1200px;
    transform-style: preserve-3d;
}

.phone-3d-device {
    position: absolute;
    width: 260px;
    height: 480px;
    left: calc(50% - 130px);
    top: 0;
    transform-style: preserve-3d;
    transform: rotateX(12deg) rotateY(-18deg) rotateZ(0deg);
    transition: transform 0.1s ease-out;
    filter: drop-shadow(0 30px 50px rgba(0, 0, 0, 0.15));
}

.phone-3d-face {
    position: absolute;
    border-radius: 44px;
    backface-visibility: visible;
}

/* Front Face */
.phone-3d-front {
    width: 100%;
    height: 100%;
    transform: translateZ(8px);
    background: #000000;
    padding: 10px;
    border: 3.5px solid #2a2a2a;
    box-shadow: inset 0 0 15px rgba(255,255,255,0.05);
    z-index: 2;
}

.phone-3d-front::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    border-radius: 40px;
    background: linear-gradient(135deg, rgba(255,255,255,0.1) 0%, rgba(255,255,255,0) 50%, rgba(255,255,255,0) 100%);
    pointer-events: none;
    z-index: 10;
}

/* Back Face */
.phone-3d-back {
    width: 100%;
    height: 100%;
    transform: rotateY(180deg) translateZ(8px);
    background: linear-gradient(135deg, #1f1f1f 0%, #111111 100%);
    border: 3.5px solid #2a2a2a;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: rgba(255,255,255,0.15);
}

.phone-back-camera-bump {
    position: absolute;
    top: 30px;
    left: 30px;
    width: 60px;
    height: 60px;
    border-radius: 18px;
    background-color: #161616;
    border: 1px solid rgba(255,255,255,0.05);
    box-shadow: 0 4px 10px rgba(0,0,0,0.3), inset 0 2px 4px rgba(255,255,255,0.05);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.camera-lens {
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: radial-gradient(circle, #050505 0%, #1a1a1a 100%);
    border: 2px solid #2d2d2d;
    box-shadow: inset 0 2px 5px rgba(0,0,0,0.8);
}

.camera-lens.small {
    width: 12px;
    height: 12px;
}

.phone-back-logo {
    font-family: var(--font-serif);
    font-size: 2.2rem;
    font-weight: 600;
    letter-spacing: -0.5px;
    font-style: italic;
    opacity: 0.15;
}

/* Side Thickness Faces */
.phone-3d-left {
    width: 16px;
    height: calc(100% - 80px);
    top: 40px;
    left: -8px;
    transform: rotateY(-90deg);
    background: linear-gradient(to bottom, #2b2b2b, #161616);
    border-radius: 0;
}

.phone-3d-right {
    width: 16px;
    height: calc(100% - 80px);
    top: 40px;
    right: -8px;
    transform: rotateY(90deg);
    background: linear-gradient(to bottom, #2b2b2b, #161616);
    border-radius: 0;
}

.phone-3d-top {
    height: 16px;
    width: calc(100% - 80px);
    left: 40px;
    top: -8px;
    transform: rotateX(90deg);
    background: #2b2b2b;
    border-radius: 0;
}

.phone-3d-bottom {
    height: 16px;
    width: calc(100% - 80px);
    left: 40px;
    bottom: -8px;
    transform: rotateX(-90deg);
    background: #161616;
    border-radius: 0;
}

/* Custom ambient mesh animation in phone screen */
.phone-screen-ambient {
    position: relative;
    width: 100%;
    height: 100%;
    border-radius: 34px;
    background: linear-gradient(180deg, #F9F7F2 0%, #E3DFD5 100%);
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
}

.ambient-glow-circle-1 {
    position: absolute;
    width: 250px;
    height: 250px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(28, 98, 242, 0.25) 0%, rgba(28, 98, 242, 0) 70%);
    top: -40px;
    left: -40px;
    animation: pulseGlow1 8s infinite alternate ease-in-out;
}

.ambient-glow-circle-2 {
    position: absolute;
    width: 280px;
    height: 280px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(214, 81, 60, 0.2) 0%, rgba(214, 81, 60, 0) 70%);
    bottom: -60px;
    right: -60px;
    animation: pulseGlow2 10s infinite alternate ease-in-out;
}

.phone-screen-content {
    position: relative;
    z-index: 2;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: space-between;
    height: 100%;
    padding: 30px 20px;
    width: 100%;
}

.phone-screen-pill {
    width: 60px;
    height: 18px;
    background-color: rgba(0, 0, 0, 0.8);
    border-radius: 10px;
    margin-top: -15px;
}

.phone-inner-text {
    font-family: var(--font-serif);
    font-size: 1.8rem;
    font-style: italic;
    color: var(--color-text-dark);
    text-align: center;
    font-weight: 500;
    margin-bottom: 60px;
    animation: textFloat 3s infinite ease-in-out;
}

/* Floating Badges */
.floating-badge {
    position: absolute;
    border-radius: var(--border-radius-md);
    padding: 16px;
    box-shadow: 0 15px 35px rgba(0,0,0,0.06);
    display: flex;
    align-items: center;
    transition: transform 0.2s cubic-bezier(0.25, 0.8, 0.25, 1);
    z-index: 15;
}

/* Badge 1: Yellow bell notification */
.badge-yellow {
    background-color: var(--color-yellow);
    top: 50px;
    left: -70px;
    width: 100px;
    height: 100px;
    flex-direction: column;
    justify-content: center;
    gap: 12px;
    animation: badgeFloat1 5s infinite ease-in-out;
}

.badge-icon {
    color: var(--color-text-dark);
}

.bell-icon {
    animation: bellRing 3s infinite ease-in-out;
}

.badge-lines {
    display: flex;
    flex-direction: column;
    gap: 4px;
    width: 100%;
}

.badge-lines .line {
    height: 4px;
    background-color: rgba(18, 18, 18, 0.15);
    border-radius: 2px;
    display: block;
}

.badge-lines .line.short { width: 40%; margin: 0 auto; }
.badge-lines .line.long { width: 70%; margin: 0 auto; }

/* Badge 2: Dark circular stats */
.badge-dark {
    background-color: var(--color-bg-card-dark);
    bottom: 120px;
    left: -90px;
    width: 130px;
    padding: 16px;
    gap: 12px;
    animation: badgeFloat2 6s infinite ease-in-out;
}

.badge-ring-progress {
    width: 40px;
    height: 40px;
}

.circular-chart {
    display: block;
    max-width: 100%;
    max-height: 100%;
}

.circle {
    stroke-linecap: round;
    animation: progressRing 1.5s ease-out forwards;
}

.badge-bars {
    display: flex;
    align-items: flex-end;
    gap: 4px;
    height: 40px;
}

.badge-bars .bar {
    width: 5px;
    background-color: rgba(255, 255, 255, 0.2);
    border-radius: 3px;
    display: block;
    animation: barGrow 1.5s infinite alternate ease-in-out;
}

.badge-bars .bar:nth-child(1) { animation-delay: 0.1s; }
.badge-bars .bar:nth-child(2) { animation-delay: 0.3s; background-color: var(--color-yellow); }
.badge-bars .bar:nth-child(3) { animation-delay: 0.5s; }
.badge-bars .bar:nth-child(4) { animation-delay: 0.2s; background-color: var(--color-pink); }

/* Badge 3: Pink "2M+ Lessons Completed" */
.badge-pink {
    background-color: var(--color-pink);
    top: 150px;
    right: -80px;
    width: 110px;
    height: 110px;
    flex-direction: column;
    justify-content: center;
    align-items: flex-start;
    gap: 6px;
    animation: badgeFloat3 5.5s infinite ease-in-out;
}

.badge-text-big {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--color-blue);
    line-height: 1;
}

.badge-text-small {
    font-size: 0.7rem;
    font-weight: 600;
    color: rgba(28, 98, 242, 0.8);
    line-height: 1.2;
}

/* Badge 4: Blue hamburger menu */
.badge-blue {
    background-color: var(--color-blue);
    bottom: 80px;
    right: -60px;
    width: 120px;
    height: 64px;
    justify-content: space-between;
    align-items: center;
    padding: 0 20px;
    color: white;
    animation: badgeFloat4 6.5s infinite ease-in-out;
}

.badge-hamburger {
    display: flex;
    flex-direction: column;
    gap: 6px;
    width: 24px;
}

.badge-hamburger .h-line {
    height: 3px;
    background-color: white;
    border-radius: 2px;
    display: block;
}

.badge-hamburger .h-line:nth-child(1) { width: 100%; }
.badge-hamburger .h-line:nth-child(2) { width: 60%; }

.badge-circle-dot {
    width: 24px;
    height: 24px;
    border-radius: 50%;
    border: 3px solid white;
}

/* ==========================================================================
   Blue Feature Section
   ========================================================================== */

.blue-feature-section {
    background-color: var(--color-blue);
    color: var(--color-text-light);
    padding: 120px 0;
    overflow: hidden;
}

.blue-section-container {
    max-width: 1300px;
    margin: 0 auto;
    padding: 0 40px;
}

.blue-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
}

.video-mockup-wrapper {
    position: relative;
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    aspect-ratio: 16 / 9;
    box-shadow: 0 30px 60px rgba(0, 0, 0, 0.15);
}

.video-mockup-container {
    position: relative;
    width: 100%;
    height: 100%;
    background-color: #0b0f19;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* Custom visual ambient backdrop instead of video image */
.video-ambient-bg {
    position: absolute;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, #1e3a8a 0%, #0d1b2a 100%);
    overflow: hidden;
    z-index: 1;
}

.wave-shape-1 {
    position: absolute;
    width: 300px;
    height: 300px;
    background: radial-gradient(circle, rgba(28, 98, 242, 0.4) 0%, rgba(28, 98, 242, 0) 70%);
    top: -50px;
    left: -50px;
    animation: pulseGlow1 6s infinite alternate ease-in-out;
}

.wave-shape-2 {
    position: absolute;
    width: 350px;
    height: 350px;
    background: radial-gradient(circle, rgba(236, 72, 153, 0.15) 0%, rgba(236, 72, 153, 0) 70%);
    bottom: -80px;
    right: -80px;
    animation: pulseGlow2 8s infinite alternate ease-in-out;
}

.video-play-btn {
    position: relative;
    z-index: 5;
    width: 70px;
    height: 70px;
    background-color: var(--color-text-light);
    color: var(--color-blue);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: var(--transition-fast);
    box-shadow: 0 10px 25px rgba(0,0,0,0.2);
}

.video-play-btn:hover {
    transform: scale(1.1);
    background-color: var(--color-yellow);
    color: var(--color-text-dark);
}

.video-overlay-details {
    position: absolute;
    bottom: 24px;
    left: 24px;
    right: 24px;
    z-index: 5;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--border-radius-md);
    padding: 16px 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.module-title {
    font-weight: 500;
    font-size: 0.95rem;
    letter-spacing: 0.5px;
}

.module-meta {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 0.85rem;
}

.module-duration {
    opacity: 0.8;
}

.module-status {
    background-color: rgba(255, 255, 255, 0.2);
    padding: 4px 10px;
    border-radius: var(--border-radius-full);
    font-weight: 600;
}

.blue-text-wrapper {
    max-width: 540px;
}

.blue-pretitle {
    font-size: 0.85rem;
    font-weight: 700;
    letter-spacing: 2px;
    color: rgba(255,255,255,0.7);
    margin-bottom: 20px;
    display: block;
}

.blue-title {
    font-size: 3.2rem;
    line-height: 1.15;
    color: var(--color-text-light);
}

/* ==========================================================================
   Explore Courses Section
   ========================================================================== */

.courses-section {
    background-color: var(--color-bg-dark);
    padding: 140px 0;
    color: var(--color-text-light);
}

.courses-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

.courses-header {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 60px;
    margin-bottom: 80px;
    align-items: flex-end;
}

.section-title {
    font-size: 4rem;
    line-height: 1.05;
    letter-spacing: -1px;
}

.section-title.text-white {
    color: var(--color-text-light);
}

.section-title.text-black {
    color: var(--color-text-dark);
}

.section-desc {
    font-size: 1.1rem;
    line-height: 1.6;
    margin-bottom: 30px;
    opacity: 0.7;
}

.section-desc.text-dark {
    color: var(--color-text-muted);
    opacity: 0.9;
}

/* Course Rows Accordion Accordion hover visual reveal */
.courses-accordion-list {
    display: flex;
    flex-direction: column;
    border-top: 1px solid var(--color-border-light);
}

.course-row {
    display: grid;
    grid-template-columns: 80px 1fr 260px;
    gap: 40px;
    padding: 40px 20px;
    border-bottom: 1px solid var(--color-border-light);
    align-items: center;
    cursor: pointer;
    position: relative;
    transition: var(--transition-smooth);
    overflow: hidden;
}

.course-row::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(255, 255, 255, 0.02);
    transform: scaleY(0);
    transform-origin: bottom;
    transition: transform 0.5s cubic-bezier(0.16, 1, 0.3, 1);
    z-index: 1;
}

.course-row:hover::before {
    transform: scaleY(1);
    transform-origin: top;
}

.course-row-num {
    font-family: var(--font-sans);
    font-size: 1.1rem;
    font-weight: 500;
    opacity: 0.4;
    transition: var(--transition-fast);
    z-index: 2;
}

.course-row-title-desc {
    display: flex;
    align-items: center;
    gap: 80px;
    z-index: 2;
}

.course-title {
    font-size: 2.2rem;
    font-weight: 500;
    min-width: 250px;
    transition: var(--transition-fast);
}

.course-desc {
    font-size: 1rem;
    line-height: 1.5;
    opacity: 0.6;
    max-width: 450px;
    transition: var(--transition-fast);
}

.course-row:hover .course-row-num {
    opacity: 1;
    color: var(--color-yellow);
}

.course-row:hover .course-title {
    transform: translateX(10px);
    color: var(--color-yellow);
}

.course-row:hover .course-desc {
    opacity: 0.9;
}

/* CSS gradient block instead of course image */
.course-image-preview-box {
    width: 260px;
    height: 150px;
    border-radius: var(--border-radius-md);
    overflow: hidden;
    position: relative;
    opacity: 0.3;
    transform: scale(0.9) translateY(10px);
    transition: var(--transition-smooth);
    z-index: 2;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

.course-row:hover .course-image-preview-box {
    opacity: 1;
    transform: scale(1) translateY(0);
}

.course-mesh-gradient {
    position: absolute;
    width: 100%;
    height: 100%;
    overflow: hidden;
}

.mesh-dev {
    background: linear-gradient(135deg, #6366F1 0%, #EC4899 100%);
}

.mesh-data {
    background: linear-gradient(135deg, #06B6D4 0%, #3B82F6 100%);
}

.mesh-design {
    background: linear-gradient(135deg, #F43F5E 0%, #F59E0B 100%);
}

.mesh-marketing {
    background: linear-gradient(135deg, #10B981 0%, #F59E0B 100%);
}

.course-mesh-gradient .mesh-node {
    position: absolute;
    width: 150px;
    height: 150px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.2);
    filter: blur(20px);
    animation: meshFlow 6s infinite alternate ease-in-out;
}

.course-mesh-gradient .mesh-node:nth-child(2) {
    background: rgba(255, 255, 255, 0.15);
    bottom: -30px;
    right: -30px;
    animation-delay: -3s;
}

/* ==========================================================================
   Parallax Ambient Banner (Replaces Headphones Banner image with color banner)
   ========================================================================== */

.headphones-banner-section {
    position: relative;
    padding: 160px 0;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: #0d1527;
}

/* Colored Banner background style */
.banner-parallax-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, #0d1527 0%, #1c2a4a 50%, #0d1527 100%);
    z-index: 1;
}

.parallax-circle-1 {
    position: absolute;
    width: 500px;
    height: 500px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(28, 98, 242, 0.25) 0%, rgba(28, 98, 242, 0) 70%);
    top: -100px;
    left: -100px;
    z-index: 1;
}

.parallax-circle-2 {
    position: absolute;
    width: 600px;
    height: 600px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(236, 72, 153, 0.12) 0%, rgba(236, 72, 153, 0) 70%);
    bottom: -150px;
    right: -100px;
    z-index: 1;
}

.banner-glass-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle, transparent 30%, rgba(13, 21, 39, 0.6) 100%);
    z-index: 2;
}

.banner-container {
    max-width: 800px;
    margin: 0 auto;
    padding: 0 24px;
    position: relative;
    z-index: 3;
    text-align: center;
    color: var(--color-text-light);
}

.banner-title {
    font-size: 4.5rem;
    line-height: 1.05;
    margin-bottom: 20px;
    letter-spacing: -1px;
}

.banner-subtitle {
    font-size: 1.1rem;
    opacity: 0.7;
    margin-bottom: 40px;
    letter-spacing: 0.5px;
}

.app-store-badges {
    display: flex;
    justify-content: center;
    gap: 20px;
    flex-wrap: wrap;
}

.badge-store {
    background: rgba(255, 255, 255, 0.08);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--border-radius-md);
    padding: 12px 28px;
    min-width: 190px;
    cursor: pointer;
    transition: var(--transition-fast);
}

.badge-store:hover {
    background: rgba(255, 255, 255, 0.16);
    border-color: rgba(255, 255, 255, 0.25);
    transform: translateY(-2px);
}

.badge-store-inner {
    display: flex;
    align-items: center;
    gap: 12px;
    text-align: left;
}

.store-icon {
    font-size: 1.5rem;
}

.badge-store-text {
    display: flex;
    flex-direction: column;
}

.badge-sub {
    font-size: 0.65rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    opacity: 0.6;
}

.badge-main {
    font-size: 1.05rem;
    font-weight: 600;
}

/* ==========================================================================
   Features Section
   ========================================================================== */

.features-section {
    background-color: var(--color-bg-cream);
    padding: 140px 0;
    overflow: hidden;
}

.features-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

.features-header {
    margin-bottom: 80px;
    max-width: 600px;
}

/* Carousel layouts */
.features-carousel-outer {
    position: relative;
    width: 100%;
}

.features-carousel-track-wrapper {
    overflow: visible; /* Allows preview cards to bleed off the screen neatly */
    width: 100%;
}

.features-carousel-track {
    display: flex;
    gap: 30px;
    transition: transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
    will-change: transform;
}

/* Individual Feature Cards */
.feature-card {
    flex: 0 0 280px; /* Consistent card width */
    height: 280px;
    border-radius: var(--border-radius-lg);
    padding: 30px;
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    position: relative;
    overflow: hidden;
    box-shadow: var(--shadow-premium);
    transition: var(--transition-smooth);
}

.feature-card:hover {
    transform: translateY(-8px) scale(1.02);
    box-shadow: var(--shadow-float);
}

/* Card 1: Radial Glow */
.f-card-glow {
    background-color: var(--color-text-light);
    border: 1px solid var(--color-border-dark);
}

.f-card-visual {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.grid-glow-effect {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: radial-gradient(rgba(18, 18, 18, 0.03) 1px, transparent 1px);
    background-size: 16px 16px;
}

.animated-grid-dot {
    position: absolute;
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(28,98,242,0.15) 0%, transparent 70%);
    animation: gridDotMove 6s infinite alternate linear;
}

.features-circle-container {
    position: relative;
    width: 100px;
    height: 100px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.features-circle-svg {
    transform: rotate(-90deg);
}

.features-circle-val {
    position: absolute;
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--color-text-dark);
}

/* Card 2: Solid Yellow Water tracker */
.f-card-yellow {
    background-color: var(--color-yellow);
}

.f-card-content {
    display: flex;
    flex-direction: column;
    gap: 8px;
    color: var(--color-text-dark);
}

.f-card-number {
    font-size: 5rem;
    font-family: var(--font-serif);
    font-weight: 600;
    line-height: 0.8;
}

.f-card-label {
    font-size: 0.9rem;
    font-weight: 600;
    opacity: 0.8;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* Card 3: Neutral Stripe Placeholder */
.f-card-neutral {
    background-color: var(--color-text-light);
    border: 1px solid var(--color-border-dark);
}

.f-card-visual-neutral {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.neutral-stripes {
    display: flex;
    flex-direction: column;
    gap: 12px;
    width: 80%;
}

.neutral-stripes .stripe {
    height: 24px;
    background-color: rgba(18, 18, 18, 0.03);
    border-radius: var(--border-radius-sm);
    width: 100%;
}

.neutral-stripes .stripe:nth-child(2) {
    width: 75%;
}

.neutral-stripes .stripe:nth-child(3) {
    width: 50%;
}

/* Card 4: Dark/Blue chart card */
.f-card-blue-stats {
    background-color: var(--color-bg-card-dark);
}

.f-card-visual-blue {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-top: 40px;
}

.f-blue-chart {
    display: flex;
    align-items: flex-end;
    gap: 12px;
    height: 120px;
    width: 60%;
}

.f-blue-bar {
    width: 12px;
    background-color: rgba(255, 255, 255, 0.1);
    border-radius: 6px;
    height: var(--val);
    animation: barGrow 1.8s infinite alternate ease-in-out;
}

.f-blue-bar:nth-child(2) {
    background-color: var(--color-blue);
    animation-delay: 0.3s;
}

.f-blue-bar:nth-child(3) {
    background-color: var(--color-pink);
    animation-delay: 0.6s;
}

.f-blue-loop {
    color: white;
    opacity: 0.3;
    align-self: flex-start;
}

/* Card 5: Calories block */
.f-card-calories {
    background-color: var(--color-bg-card-dark);
    color: white;
}

.f-card-calories .f-card-number {
    color: var(--color-yellow);
}

.f-card-calories .f-card-label {
    color: rgba(255, 255, 255, 0.6);
}

/* Card 6: Pink Steps card */
.f-card-pink-steps {
    background-color: var(--color-pink);
}

.f-card-pink-steps .f-card-number {
    color: var(--color-blue);
}

.f-card-pink-steps .f-card-label {
    color: rgba(28, 98, 242, 0.7);
}

/* Carousel Control Elements */
.carousel-nav-buttons {
    display: flex;
    gap: 12px;
    margin-top: 50px;
}

.carousel-nav-btn {
    width: 56px;
    height: 56px;
    border-radius: 50%;
    border: 1px solid var(--color-border-dark);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    background-color: var(--color-text-light);
    color: var(--color-text-dark);
    transition: var(--transition-fast);
}

.carousel-nav-btn:hover {
    background-color: var(--color-bg-dark);
    color: var(--color-text-light);
    border-color: var(--color-bg-dark);
    transform: scale(1.05);
}

.carousel-nav-btn:active {
    transform: scale(0.95);
}

/* ==========================================================================
   Testimonial Section (Terracotta Color Banner)
   ========================================================================== */

.testimonials-section {
    position: relative;
    padding: 160px 0;
    overflow: hidden;
    background-color: var(--color-terracotta);
}

/* Terracotta background banner design */
.testimonials-parallax-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: var(--color-terracotta);
    z-index: 1;
}

.terracotta-wave-shape {
    position: absolute;
    width: 100%;
    height: 100%;
    background-image: radial-gradient(rgba(255, 255, 255, 0.05) 1.5px, transparent 1.5px);
    background-size: 32px 32px;
    opacity: 0.6;
}

.testimonials-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
    position: relative;
    z-index: 2;
    display: flex;
    justify-content: center;
}

.testimonials-slider-box {
    background-color: var(--color-bg-cream);
    padding: 80px;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-float);
    max-width: 800px;
    width: 100%;
    position: relative;
}

.testimonial-slides-wrapper {
    overflow: hidden;
    width: 100%;
}

.testimonials-track {
    display: flex;
    transition: transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
    will-change: transform;
}

.testimonial-slide {
    flex: 0 0 100%;
    width: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}

.testimonial-heading {
    font-size: 1rem;
    font-family: var(--font-sans);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 2px;
    color: var(--color-text-muted);
    margin-bottom: 30px;
}

.testimonial-text {
    font-family: var(--font-serif);
    font-size: 2.4rem;
    line-height: 1.3;
    font-style: italic;
    color: var(--color-text-dark);
    margin-bottom: 30px;
}

.testimonial-author {
    font-size: 1rem;
    font-weight: 600;
    color: var(--color-text-dark);
}

.slider-dots {
    display: flex;
    justify-content: center;
    gap: 8px;
    margin-top: 40px;
}

.slider-dots .dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background-color: rgba(18, 18, 18, 0.15);
    cursor: pointer;
    transition: var(--transition-fast);
}

.slider-dots .dot.active {
    background-color: var(--color-text-dark);
    transform: scale(1.3);
}

/* ==========================================================================
   Newsletter Section
   ========================================================================== */

.newsletter-section {
    background-color: var(--color-bg-cream);
    padding: 140px 0;
    border-bottom: 1px solid var(--color-border-dark);
}

.newsletter-container {
    max-width: 600px;
    margin: 0 auto;
    padding: 0 24px;
    text-align: center;
}

.newsletter-title {
    font-size: 3.8rem;
    line-height: 1.1;
    margin-bottom: 16px;
    letter-spacing: -1px;
}

.newsletter-subtitle {
    font-size: 1.1rem;
    color: var(--color-text-muted);
    margin-bottom: 50px;
}

.newsletter-form {
    display: flex;
    flex-direction: column;
    gap: 28px;
    align-items: stretch;
}

.newsletter-form.hidden {
    display: none;
}

.form-group {
    position: relative;
    display: flex;
    flex-direction: column;
}

.form-input {
    width: 100%;
    padding: 16px 4px 10px 4px;
    font-size: 1.1rem;
    border-bottom: 1px solid var(--color-text-dark);
    color: var(--color-text-dark);
    background: transparent;
    transition: var(--transition-fast);
}

.form-input:focus {
    border-bottom-width: 2px;
}

.floating-label {
    position: absolute;
    left: 4px;
    top: 14px;
    font-size: 1.1rem;
    color: var(--color-text-muted);
    pointer-events: none;
    transition: var(--transition-fast);
}

/* When input is focused or has content, float label up */
.form-input:focus ~ .floating-label,
.form-input:valid ~ .floating-label,
.form-group.has-value .floating-label {
    top: -12px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--color-text-dark);
}

.form-checkbox-group {
    display: flex;
    align-items: center;
    gap: 12px;
    text-align: left;
    cursor: pointer;
}

.form-checkbox {
    width: 20px;
    height: 20px;
    border-radius: 4px;
    border: 1px solid var(--color-text-dark);
    cursor: pointer;
    accent-color: var(--color-bg-dark);
}

.form-checkbox-label {
    font-size: 0.95rem;
    color: var(--color-text-muted);
    user-select: none;
}

.newsletter-success-message {
    display: none;
    padding: 40px 0;
    animation: scaleUp 0.6s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

.newsletter-success-message h3 {
    font-size: 2.2rem;
    color: var(--color-text-dark);
    margin-bottom: 12px;
}

.newsletter-success-message p {
    color: var(--color-text-muted);
    font-size: 1.1rem;
}

/* ==========================================================================
   Footer
   ========================================================================== */

.footer {
    background-color: var(--color-bg-cream);
    padding: 120px 0 60px 0;
}

.footer-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

.footer-brand-row {
    margin-bottom: 60px;
}

.footer-logo {
    font-family: var(--font-serif);
    font-size: 6rem;
    font-weight: 600;
    letter-spacing: 2px;
    line-height: 0.9;
    color: var(--color-text-dark);
}

.footer-columns-row {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 80px;
    margin-bottom: 80px;
}

.footer-col-title {
    font-family: var(--font-sans);
    font-size: 0.85rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    color: var(--color-text-muted);
    margin-bottom: 24px;
}

.footer-col-text {
    font-size: 1rem;
    line-height: 1.6;
    color: var(--color-text-dark);
}

.footer-links {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.footer-links a {
    font-size: 1rem;
    color: var(--color-text-dark);
    display: inline-block;
    transition: var(--transition-fast);
}

.footer-links a:hover {
    color: var(--color-blue);
}

.footer-bottom-row {
    border-top: 1px solid var(--color-border-dark);
    padding-top: 40px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.copyright {
    font-size: 0.85rem;
    color: var(--color-text-muted);
}

/* ==========================================================================
   Micro-interactions & Hover Effects
   ========================================================================== */

.link-hover-scale {
    transition: var(--transition-fast);
}

.link-hover-scale:hover {
    transform: scale(1.03);
}

.link-hover-underline {
    position: relative;
}

.link-hover-underline::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 100%;
    height: 1px;
    background-color: currentColor;
    transform: scaleX(0);
    transform-origin: right;
    transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.link-hover-underline:hover::after {
    transform: scaleX(1);
    transform-origin: left;
}

/* ==========================================================================
   Keyframes & Animations
   ========================================================================== */

@keyframes pulseGlow1 {
    0% { transform: scale(1) translate(0, 0); opacity: 0.6; }
    100% { transform: scale(1.2) translate(20px, -10px); opacity: 0.8; }
}

@keyframes pulseGlow2 {
    0% { transform: scale(1.1) translate(0, 0); opacity: 0.5; }
    100% { transform: scale(0.9) translate(-20px, 20px); opacity: 0.7; }
}

@keyframes textFloat {
    0% { transform: translateY(0); }
    50% { transform: translateY(-6px); }
    100% { transform: translateY(0); }
}

/* Badge Float Animations */
@keyframes badgeFloat1 {
    0% { transform: translateY(0) rotate(0deg); }
    50% { transform: translateY(-12px) rotate(1deg); }
    100% { transform: translateY(0) rotate(0deg); }
}

@keyframes badgeFloat2 {
    0% { transform: translateY(0) rotate(0deg); }
    50% { transform: translateY(-8px) rotate(-1.5deg); }
    100% { transform: translateY(0) rotate(0deg); }
}

@keyframes badgeFloat3 {
    0% { transform: translateY(0) rotate(0deg); }
    50% { transform: translateY(-10px) rotate(2deg); }
    100% { transform: translateY(0) rotate(0deg); }
}

@keyframes badgeFloat4 {
    0% { transform: translateY(0) rotate(0deg); }
    50% { transform: translateY(-6px) rotate(-1deg); }
    100% { transform: translateY(0) rotate(0deg); }
}

@keyframes bellRing {
    0%, 100% { transform: rotate(0); }
    4%, 12%, 20% { transform: rotate(-8deg); }
    8%, 16% { transform: rotate(8deg); }
    24% { transform: rotate(0); }
}

@keyframes barGrow {
    0% { transform: scaleY(0.4); }
    100% { transform: scaleY(1); }
}

@keyframes progressRing {
    from { stroke-dashoffset: 100; }
    to { stroke-dashoffset: 25; }
}

@keyframes meshFlow {
    0% { transform: translate(0, 0) scale(1); }
    100% { transform: translate(20px, 15px) scale(1.1); }
}

@keyframes gridDotMove {
    0% { transform: translate(-30px, -30px); }
    100% { transform: translate(120px, 120px); }
}

@keyframes scaleUp {
    from { transform: scale(0.95); opacity: 0; }
    to { transform: scale(1); opacity: 1; }
}

/* ==========================================================================
   Scroll Reveal System (Intersection Observer)
   ========================================================================== */

/* Fade-in-up class base */
.reveal-fade-up {
    opacity: 0;
    transform: translateY(30px);
    filter: blur(8px);
    transition: opacity 1.2s cubic-bezier(0.16, 1, 0.3, 1), 
                transform 1.2s cubic-bezier(0.16, 1, 0.3, 1),
                filter 1.2s cubic-bezier(0.16, 1, 0.3, 1);
}

.reveal-fade-up.active {
    opacity: 1;
    transform: translateY(0);
    filter: blur(0);
}

/* Horizontal slide reveals */
.reveal-left {
    opacity: 0;
    transform: translateX(-40px);
    filter: blur(4px);
    transition: opacity 1.2s cubic-bezier(0.16, 1, 0.3, 1), 
                transform 1.2s cubic-bezier(0.16, 1, 0.3, 1),
                filter 1.2s cubic-bezier(0.16, 1, 0.3, 1);
}

.reveal-left.active {
    opacity: 1;
    transform: translateX(0);
    filter: blur(0);
}

.reveal-right {
    opacity: 0;
    transform: translateX(40px);
    filter: blur(4px);
    transition: opacity 1.2s cubic-bezier(0.16, 1, 0.3, 1), 
                transform 1.2s cubic-bezier(0.16, 1, 0.3, 1),
                filter 1.2s cubic-bezier(0.16, 1, 0.3, 1);
}

.reveal-right.active {
    opacity: 1;
    transform: translateX(0);
    filter: blur(0);
}

/* Scale reveal */
.reveal-scale {
    opacity: 0;
    transform: scale(0.92) translateY(20px);
    filter: blur(6px);
    transition: opacity 1.2s cubic-bezier(0.16, 1, 0.3, 1), 
                transform 1.2s cubic-bezier(0.16, 1, 0.3, 1),
                filter 1.2s cubic-bezier(0.16, 1, 0.3, 1);
}

.reveal-scale.active {
    opacity: 1;
    transform: scale(1) translateY(0);
    filter: blur(0);
}

/* Basic fade reveal */
.reveal-fade {
    opacity: 0;
    filter: blur(6px);
    transition: opacity 1.2s cubic-bezier(0.16, 1, 0.3, 1),
                filter 1.2s cubic-bezier(0.16, 1, 0.3, 1);
}

.reveal-fade.active {
    opacity: 1;
    filter: blur(0);
}

/* Letters/Words animations */
.reveal-type {
    opacity: 0;
    transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

.reveal-type.active {
    opacity: 1;
}

/* Masked lines text reveals */
.reveal-line {
    display: block;
    overflow: hidden;
    line-height: 1.15;
}

.reveal-line span {
    display: block;
    transform: translateY(115%);
    transition: transform 1.2s cubic-bezier(0.16, 1, 0.3, 1);
    transition-delay: inherit;
}

.active .reveal-line span,
.active.reveal-line span {
    transform: translateY(0);
}

/* Highlighter sweep animation */
.text-highlight {
    position: relative;
    color: var(--color-blue);
    background: linear-gradient(120deg, var(--color-yellow) 0%, var(--color-yellow) 100%);
    background-repeat: no-repeat;
    background-size: 100% 0.12em;
    background-position: 0 86%;
    padding: 0 4px;
    transition: background-size 0.8s cubic-bezier(0.16, 1, 0.3, 1), color 0.6s ease;
    transition-delay: 0.5s;
}

.active .text-highlight,
.active.text-highlight {
    background-size: 100% 0.86em;
    color: var(--color-text-dark);
}

/* Delay modifiers */
.delay-1 { transition-delay: 0.15s; }
.delay-2 { transition-delay: 0.3s; }
.delay-3 { transition-delay: 0.45s; }
.delay-4 { transition-delay: 0.6s; }

/* ==========================================================================
   Responsive Adaptations
   ========================================================================== */

@media (max-width: 1200px) {
    .hero-title {
        font-size: 4rem;
    }
    
    .blue-title {
        font-size: 2.6rem;
    }
    
    .course-row {
        grid-template-columns: 50px 1fr 200px;
    }
    
    .course-title {
        font-size: 1.8rem;
        min-width: 200px;
    }
    
    .banner-title {
        font-size: 3.5rem;
    }
    
    .footer-logo {
        font-size: 5rem;
    }
}

@media (max-width: 992px) {
    .navbar-container {
        padding: 0 24px;
    }
    
    .blue-grid {
        grid-template-columns: 1fr;
        gap: 60px;
    }
    
    .video-mockup-wrapper {
        max-width: 600px;
        margin: 0 auto;
    }
    
    .courses-header {
        grid-template-columns: 1fr;
        gap: 30px;
    }
    
    .course-row {
        grid-template-columns: 40px 1fr;
        padding: 30px 10px;
    }
    
    .course-image-preview-box {
        display: none; /* Hide on small viewports to focus on content */
    }
    
    .course-row-title-desc {
        flex-direction: column;
        align-items: flex-start;
        gap: 10px;
    }
    
    .course-title {
        transform: none !important;
    }
    
    .footer-columns-row {
        grid-template-columns: 1fr;
        gap: 40px;
    }
}

@media (max-width: 768px) {
    .hero-title {
        font-size: 3.2rem;
    }
    
    .hero-subtitle {
        font-size: 1.1rem;
    }
    
    .hero-visual-wrapper {
        width: 280px;
        height: 420px;
    }
    
    .floating-badge {
        display: none !important; /* Hide badges on mobile to prevent crowding */
    }
    
    .banner-title {
        font-size: 2.8rem;
    }
    
    .testimonials-slider-box {
        padding: 40px 24px;
    }
    
    .testimonial-text {
        font-size: 1.8rem;
    }
    
    .newsletter-title {
        font-size: 2.6rem;
    }
    
    .footer-logo {
        font-size: 3.5rem;
    }
    
    .nav-menu {
        display: none; /* Toggle menu on mobile could be built, keeping simple clean layout */
    }
}

/* ==========================================================================
   Elite Upgrades & Professional Features
   ========================================================================== */

/* 1. Scroll Progress Bar */
.scroll-progress-bar {
    position: absolute;
    bottom: 0;
    left: 0;
    height: 3px;
    background: linear-gradient(to right, var(--color-accent-blue), var(--color-blue));
    width: 0%;
    z-index: 1001;
    transition: width 0.1s ease-out;
}

/* 2. Mobile Burger Toggle */
.mobile-nav-toggle {
    display: none;
    flex-direction: column;
    justify-content: space-between;
    width: 24px;
    height: 14px;
    cursor: pointer;
    z-index: 1100;
}

.mobile-nav-toggle .toggle-line {
    width: 100%;
    height: 2px;
    background-color: var(--color-text-dark);
    transition: var(--transition-fast);
    transform-origin: center;
}

.mobile-nav-toggle .toggle-line:nth-child(2) {
    margin-top: 10px;
}

/* Hamburger active states */
.mobile-nav-active .mobile-nav-toggle .toggle-line:nth-child(1) {
    transform: translateY(6px) rotate(45deg);
}

.mobile-nav-active .mobile-nav-toggle .toggle-line:nth-child(2) {
    transform: translateY(-6px) rotate(-45deg);
}

/* 3. Mobile Menu Overlay Drawer */
.mobile-menu-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    background-color: var(--color-bg-cream);
    z-index: 1050;
    display: flex;
    align-items: center;
    justify-content: center;
    transform: translateY(-100%);
    opacity: 0;
    transition: transform 0.6s cubic-bezier(0.16, 1, 0.3, 1), opacity 0.6s cubic-bezier(0.16, 1, 0.3, 1);
    pointer-events: none;
}

.mobile-menu-overlay.active {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
}

.mobile-menu-inner {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 30px;
    width: 100%;
    max-width: 320px;
    padding: 20px;
}

.mobile-nav-link {
    font-family: var(--font-serif);
    font-size: 2.2rem;
    color: var(--color-text-dark);
    transition: var(--transition-fast);
    opacity: 0;
    transform: translateY(20px);
}

.mobile-menu-overlay.active .mobile-nav-link {
    opacity: 1;
    transform: translateY(0);
    transition-delay: calc(0.1s * var(--idx, 1));
}

.mobile-menu-cta {
    width: 100%;
    opacity: 0;
    transform: translateY(20px);
    margin-top: 15px;
}

.mobile-menu-overlay.active .mobile-menu-cta {
    opacity: 1;
    transform: translateY(0);
    transition: transform 0.6s cubic-bezier(0.16, 1, 0.3, 1) 0.4s, opacity 0.6s cubic-bezier(0.16, 1, 0.3, 1) 0.4s;
}

/* 4. Course Row Sibling Hover Dimming */
.courses-accordion-list:hover .course-row:not(:hover) {
    opacity: 0.25;
}

/* 5. 3D Phone App Dashboard Mock UI */
.phone-status-bar {
    width: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 4px;
    margin-top: 5px;
    margin-bottom: 24px;
    font-size: 0.7rem;
    font-weight: 600;
    color: var(--color-text-dark);
    letter-spacing: -0.2px;
}

.status-icons {
    display: flex;
    gap: 4px;
    align-items: center;
}

.phone-app-body {
    width: 100%;
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    text-align: left;
}

.app-header {
    margin-bottom: 20px;
}

.app-greeting {
    font-size: 0.75rem;
    color: var(--color-text-muted);
    font-weight: 500;
    display: block;
}

.app-user-name {
    font-family: var(--font-serif);
    font-size: 1.6rem;
    font-weight: 600;
    color: var(--color-text-dark);
    line-height: 1.1;
    margin-top: 2px;
}

.app-card {
    background-color: var(--color-text-light);
    border-radius: 20px;
    padding: 16px;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.03), 0 2px 5px rgba(0,0,0,0.01);
    border: 1px solid rgba(18, 18, 18, 0.03);
    margin-bottom: 14px;
}

/* Progress ring Card */
.app-goal-card {
    background: #ffffff;
}

.card-progress-row {
    display: flex;
    align-items: center;
    gap: 14px;
}

.card-progress-circle {
    position: relative;
    width: 34px;
    height: 34px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.card-progress-circle svg {
    transform: rotate(-90deg);
}

.card-progress-circle .circle-val {
    position: absolute;
    font-size: 0.6rem;
    font-weight: 700;
    color: var(--color-text-dark);
}

.card-progress-info {
    display: flex;
    flex-direction: column;
}

.info-title {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--color-text-dark);
}

.info-sub {
    font-size: 0.7rem;
    color: var(--color-text-muted);
}

/* Active Module Card */
.app-module-card {
    background-color: var(--color-bg-dark);
    color: white;
    border: none;
}

.module-indicator {
    display: flex;
    justify-content: space-between;
    font-size: 0.6rem;
    font-weight: 700;
    letter-spacing: 0.5px;
    margin-bottom: 8px;
}

.indicator-tag {
    color: var(--color-yellow);
}

.indicator-time {
    opacity: 0.6;
}

.module-card-title {
    font-family: var(--font-sans);
    font-size: 0.9rem;
    font-weight: 600;
    line-height: 1.3;
    margin-bottom: 12px;
}

.module-progress-slider {
    width: 100%;
}

.slider-track {
    width: 100%;
    height: 4px;
    background-color: rgba(255, 255, 255, 0.1);
    border-radius: 2px;
    overflow: hidden;
}

.slider-fill {
    height: 100%;
    background-color: var(--color-yellow);
    border-radius: 2px;
    animation: barGrow 1.5s ease-out forwards;
}

/* App Bottom Navigation Mock */
.app-nav-tabs {
    display: flex;
    justify-content: space-around;
    align-items: center;
    border-top: 1px solid rgba(18,18,18,0.04);
    padding-top: 15px;
    margin-top: 10px;
    color: var(--color-text-muted);
}

.tab-item {
    cursor: pointer;
    transition: var(--transition-fast);
    opacity: 0.5;
}

.tab-item.active {
    color: var(--color-blue);
    opacity: 1;
}

.tab-item:hover {
    opacity: 0.9;
}

/* Toggle menu media overrides */
@media (max-width: 768px) {
    .mobile-nav-toggle {
        display: flex;
    }
}

/* ==========================================================================
   Hero Badge Pill (AI Buddy Tag)
   ========================================================================== */

.hero-badge-pill {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    background: rgba(28, 98, 242, 0.08);
    border: 1px solid rgba(28, 98, 242, 0.2);
    color: var(--color-blue);
    font-size: 0.85rem;
    font-weight: 600;
    padding: 8px 18px;
    border-radius: var(--border-radius-full);
    margin-bottom: 24px;
    letter-spacing: 0.3px;
}

.badge-pulse-dot {
    width: 8px;
    height: 8px;
    background-color: var(--color-blue);
    border-radius: 50%;
    animation: pulseDot 1.8s infinite ease-in-out;
    flex-shrink: 0;
}

@keyframes pulseDot {
    0%, 100% { transform: scale(1); opacity: 1; }
    50% { transform: scale(1.5); opacity: 0.5; }
}

/* ==========================================================================
   Hero CTA Ghost Link
   ========================================================================== */

.hero-cta-row {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 28px;
    margin-top: 36px;
}

.btn-ghost-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--color-text-muted);
    border-bottom: 1.5px solid transparent;
    transition: var(--transition-fast);
    padding-bottom: 2px;
}

.btn-ghost-link:hover {
    color: var(--color-text-dark);
    border-color: var(--color-text-dark);
    gap: 12px;
}

.btn-ghost-link svg {
    transition: transform 0.3s ease;
}

.btn-ghost-link:hover svg {
    transform: translateX(4px);
}

/* ==========================================================================
   Stats Bar Section
   ========================================================================== */

.stats-bar-section {
    background-color: var(--color-bg-cream);
    border-top: 1px solid var(--color-border-dark);
    border-bottom: 1px solid var(--color-border-dark);
    padding: 40px 24px;
}

.stats-bar-container {
    max-width: 1000px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
}

.stat-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 6px;
    flex: 1;
    text-align: center;
}

.stat-value {
    font-family: var(--font-serif);
    font-size: 2.6rem;
    font-weight: 600;
    color: var(--color-text-dark);
    line-height: 1;
    letter-spacing: -0.5px;
}

.stat-label {
    font-size: 0.8rem;
    font-weight: 500;
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.stat-divider {
    width: 1px;
    height: 50px;
    background-color: var(--color-border-dark);
    flex-shrink: 0;
}

/* ==========================================================================
   Blue Section — Body Text
   ========================================================================== */

.blue-body {
    font-size: 1.05rem;
    line-height: 1.7;
    color: rgba(255, 255, 255, 0.65);
    margin-top: 24px;
    max-width: 460px;
}

/* ==========================================================================
   Banner — Pretitle & Third Circle
   ========================================================================== */

.banner-pretitle {
    display: block;
    font-size: 0.8rem;
    font-weight: 700;
    letter-spacing: 2px;
    text-transform: uppercase;
    color: rgba(255, 255, 255, 0.5);
    margin-bottom: 16px;
}

.parallax-circle-3 {
    position: absolute;
    width: 300px;
    height: 300px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(255, 241, 118, 0.08) 0%, rgba(255, 241, 118, 0) 70%);
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    z-index: 1;
}

/* ==========================================================================
   Feature Cards — Label Top & Description
   ========================================================================== */

.f-card-label-top {
    position: absolute;
    top: 24px;
    left: 28px;
    font-size: 0.7rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1.2px;
    opacity: 0.5;
    color: var(--color-text-dark);
}

.f-card-glow .f-card-label-top,
.f-card-neutral .f-card-label-top { color: var(--color-text-dark); }
.f-card-yellow .f-card-label-top { color: var(--color-text-dark); }
.f-card-blue-stats .f-card-label-top,
.f-card-calories .f-card-label-top,
.f-card-pink-steps .f-card-label-top { color: var(--color-text-light); opacity: 0.6; }

.f-card-desc {
    font-size: 0.78rem;
    font-weight: 500;
    margin-top: 10px;
    opacity: 0.6;
    line-height: 1.4;
}

.f-card-yellow .f-card-desc { color: var(--color-text-dark); }
.f-card-blue-stats .f-card-desc,
.f-card-calories .f-card-desc,
.f-card-pink-steps .f-card-desc { color: var(--color-text-light); }

/* ==========================================================================
   5th Course Mesh — AI gradient
   ========================================================================== */

.mesh-ai {
    background: linear-gradient(135deg, #7C3AED 0%, #1C62F2 100%);
}

/* ==========================================================================
   Footer Tagline
   ========================================================================== */

.footer-tagline {
    font-size: 0.9rem;
    color: var(--color-text-muted);
    margin-top: 4px;
}

/* ==========================================================================
   Delay Utility Classes
   ========================================================================== */

.delay-1 { animation-delay: 0.1s; transition-delay: 0.1s; }
.delay-2 { animation-delay: 0.2s; transition-delay: 0.2s; }
.delay-3 { animation-delay: 0.3s; transition-delay: 0.3s; }

/* ==========================================================================
   Stats Bar Responsive
   ========================================================================== */

@media (max-width: 768px) {
    .stats-bar-container {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 20px 0;
    }

    .stat-divider {
        display: none;
    }

    .stat-item {
        border-bottom: 1px solid var(--color-border-dark);
        padding-bottom: 16px;
    }

    .stat-item:nth-child(3),
    .stat-item:nth-child(7) {
        border-bottom: none;
    }

    .hero-cta-row {
        flex-direction: column;
        gap: 16px;
    }

    .blue-body {
        font-size: 0.95rem;
    }

    .banner-title {
        font-size: 2.8rem;
    }

    .banner-pretitle {
        font-size: 0.7rem;
    }
}