/* ============================================
   TEACHER RAFA - ONE PAGE WEBSITE
   Design System & Styles
   ============================================ */

/* ============================================
   CSS VARIABLES & DESIGN TOKENS
   ============================================ */
:root {
    /* Brand Colors - From cores.png */
    --color-primary: #FF8C00;
    --color-secondary: #000000;
    --color-accent: #4A90E2;

    /* Color Variations */
    --color-primary-light: #FFA500;
    --color-primary-dark: #E67E00;
    --color-secondary-light: #1a1a1a;
    --color-accent-light: #6BA3E8;

    /* Neutral Colors */
    --color-white: #ffffff;
    --color-light: #f5f5f5;
    --color-dark: #1a1a1a;

    /* Gradients */
    --gradient-primary: linear-gradient(135deg, #FF8C00 0%, #E67E00 100%);
    --gradient-overlay: linear-gradient(135deg, rgba(255, 140, 0, 0.9) 0%, rgba(0, 0, 0, 0.8) 100%);
    --gradient-dark: linear-gradient(180deg, #000000 0%, #1a1a1a 100%);

    /* Typography */
    --font-primary: 'Outfit', sans-serif;
    --font-secondary: 'Poppins', sans-serif;

    /* Font Sizes */
    --fs-xs: 0.75rem;
    --fs-sm: 0.875rem;
    --fs-base: 1rem;
    --fs-lg: 1.125rem;
    --fs-xl: 1.25rem;
    --fs-2xl: 1.5rem;
    --fs-3xl: 2rem;
    --fs-4xl: 2.5rem;
    --fs-5xl: 3rem;
    --fs-6xl: 4rem;

    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-2xl: 4rem;
    --spacing-3xl: 6rem;

    /* Border Radius */
    --radius-sm: 0.5rem;
    --radius-md: 1rem;
    --radius-lg: 1.5rem;
    --radius-xl: 2rem;
    --radius-full: 9999px;

    /* Shadows */
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.15);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.2);
    --shadow-xl: 0 16px 48px rgba(0, 0, 0, 0.25);
    --shadow-glow: 0 0 30px rgba(248, 198, 41, 0.3);

    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-base: 0.3s ease;
    --transition-slow: 0.5s ease;

    /* Z-index */
    --z-dropdown: 1000;
    --z-sticky: 1020;
    --z-fixed: 1030;
    --z-modal: 1040;
    --z-tooltip: 1050;
}

/* ============================================
   DARK THEME VARIABLES
   ============================================ */
[data-theme="dark"] {
    /* Dark Mode Colors */
    --color-white: #1a1a1a;
    --color-light: #2d2d2d;
    --color-dark: #f5f5f5;
    --color-secondary: #ffffff;
    --color-secondary-light: #e0e0e0;

    /* Adjusted shadows for dark mode */
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.5);
    --shadow-xl: 0 16px 48px rgba(0, 0, 0, 0.6);

    /* Keep primary and accent colors but adjust for dark bg */
    --color-accent: #6BA3E8;
    --color-accent-light: #8AB8ED;

    /* Dark gradient overlay */
    --gradient-overlay: linear-gradient(135deg, rgba(255, 140, 0, 0.8) 0%, rgba(0, 0, 0, 0.9) 100%);
}

/* Dark mode button improvements */
[data-theme="dark"] .btn-secondary {
    background: var(--color-primary);
    color: var(--color-secondary);
    border-color: var(--color-primary);
}

[data-theme="dark"] .btn-secondary:hover {
    background: var(--color-primary-dark);
    color: var(--color-white);
    border-color: var(--color-primary-dark);
}

/* ============================================
   RESET & BASE STYLES
   ============================================ */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-secondary);
    font-size: var(--fs-base);
    line-height: 1.6;
    color: var(--color-secondary);
    background-color: var(--color-white);
    overflow-x: hidden;
}

h1,
h2,
h3,
h4,
h5,
h6 {
    font-family: var(--font-primary);
    font-weight: 700;
    line-height: 1.2;
    color: var(--color-secondary);
}

a {
    text-decoration: none;
    color: inherit;
    transition: var(--transition-base);
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

ul {
    list-style: none;
}

button {
    border: none;
    background: none;
    cursor: pointer;
    font-family: inherit;
}

/* ============================================
   UTILITY CLASSES
   ============================================ */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

.gradient-text {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section-tag {
    display: inline-block;
    padding: var(--spacing-xs) var(--spacing-md);
    background: var(--color-primary);
    color: var(--color-secondary);
    font-size: var(--fs-sm);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    border-radius: var(--radius-full);
    margin-bottom: var(--spacing-md);
}

.section-header {
    text-align: center;
    margin-bottom: var(--spacing-3xl);
}

.section-title {
    font-size: var(--fs-4xl);
    margin-bottom: var(--spacing-md);
    color: var(--color-secondary);
}

.section-description {
    font-size: var(--fs-lg);
    color: var(--color-accent);
    max-width: 700px;
    margin: 0 auto;
}

/* ============================================
   BUTTONS
   ============================================ */
.btn {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-md) var(--spacing-xl);
    font-size: var(--fs-base);
    font-weight: 600;
    border-radius: var(--radius-full);
    transition: all var(--transition-base);
    cursor: pointer;
    border: 2px solid transparent;
}

.btn i {
    font-size: 1.2em;
}

.btn-primary {
    background: var(--color-primary);
    color: var(--color-secondary);
    box-shadow: var(--shadow-md);
}

.btn-primary:hover {
    background: var(--color-primary-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-secondary {
    background: transparent;
    color: var(--color-secondary);
    border-color: var(--color-secondary);
}

.btn-secondary:hover {
    background: var(--color-secondary);
    color: var(--color-white);
}

.btn-buy {
    width: 100%;
    justify-content: center;
    background: var(--gradient-primary);
    color: var(--color-secondary);
    font-size: var(--fs-lg);
    padding: var(--spacing-lg) var(--spacing-xl);
    box-shadow: var(--shadow-lg);
}

.btn-buy:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-xl), var(--shadow-glow);
}

.btn-instagram {
    background: linear-gradient(45deg, #f09433 0%, #e6683c 25%, #dc2743 50%, #cc2366 75%, #bc1888 100%);
    color: var(--color-white);
    box-shadow: var(--shadow-md);
}

.btn-instagram:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-submit {
    width: 100%;
    justify-content: center;
}

/* ============================================
   NAVIGATION
   ============================================ */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: var(--color-white);
    box-shadow: var(--shadow-sm);
    z-index: var(--z-fixed);
    transition: var(--transition-base);
}

.navbar.scrolled {
    box-shadow: var(--shadow-md);
}

.nav-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-xs) var(--spacing-lg);
}

.logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: var(--fs-xl);
    font-weight: 700;
    color: var(--color-secondary);
}

.logo img {
    height: 80px;
    width: auto;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: var(--spacing-xl);
}

.nav-link {
    font-weight: 500;
    color: var(--color-secondary);
    position: relative;
    padding: var(--spacing-xs) 0;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--color-primary);
    transition: var(--transition-base);
}

.nav-link:hover::after,
.nav-link.active::after {
    width: 100%;
}

.nav-link.cta-nav {
    background: var(--color-primary);
    color: var(--color-secondary);
    padding: var(--spacing-sm) var(--spacing-lg);
    border-radius: var(--radius-full);
}

.nav-link.cta-nav::after {
    display: none;
}

.nav-link.cta-nav:hover {
    background: var(--color-primary-dark);
}

.hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
}

.hamburger span {
    width: 25px;
    height: 3px;
    background: var(--color-secondary);
    border-radius: var(--radius-sm);
    transition: var(--transition-base);
}

/* ============================================
   HERO SECTION
   ============================================ */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: 80px;
    overflow: hidden;
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: -1;
}

.gradient-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(248, 198, 41, 0.05) 0%, rgba(255, 255, 255, 1) 50%);
}

.floating-shapes {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    overflow: hidden;
}

.shape {
    position: absolute;
    border-radius: 50%;
    opacity: 0.1;
    animation: float 20s infinite ease-in-out;
}

.shape-1 {
    width: 300px;
    height: 300px;
    background: var(--color-primary);
    top: 10%;
    left: 5%;
    animation-delay: 0s;
}

.shape-2 {
    width: 200px;
    height: 200px;
    background: var(--color-accent);
    top: 60%;
    right: 10%;
    animation-delay: 5s;
}

.shape-3 {
    width: 150px;
    height: 150px;
    background: var(--color-primary);
    bottom: 10%;
    left: 50%;
    animation-delay: 10s;
}

@keyframes float {

    0%,
    100% {
        transform: translateY(0) rotate(0deg);
    }

    50% {
        transform: translateY(-30px) rotate(180deg);
    }
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-3xl);
    align-items: center;
}

.hero-text {
    animation: fadeInLeft 1s ease;
}

.hero-title {
    font-size: var(--fs-6xl);
    margin-bottom: var(--spacing-lg);
    line-height: 1.1;
}

.hero-subtitle {
    font-size: var(--fs-xl);
    color: var(--color-accent);
    margin-bottom: var(--spacing-xl);
    line-height: 1.6;
}

.hero-buttons {
    display: flex;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-2xl);
}

.hero-stats {
    display: flex;
    gap: var(--spacing-2xl);
}

.stat {
    display: flex;
    flex-direction: column;
}

.stat-number {
    font-size: var(--fs-3xl);
    font-weight: 700;
    color: var(--color-primary);
}

.stat-label {
    font-size: var(--fs-sm);
    color: var(--color-accent);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.hero-image {
    position: relative;
    animation: fadeInRight 1s ease;
}

.image-wrapper {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
}

.hero-logo {
    max-width: 400px;
    filter: drop-shadow(var(--shadow-xl));
    animation: pulse 3s infinite ease-in-out;
}

@keyframes pulse {

    0%,
    100% {
        transform: scale(1);
    }

    50% {
        transform: scale(1.05);
    }
}

.floating-badge {
    position: absolute;
    background: var(--color-white);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-full);
    box-shadow: var(--shadow-lg);
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-weight: 600;
    font-size: var(--fs-sm);
    animation: bounce 2s infinite ease-in-out;
}

.floating-badge i {
    color: var(--color-primary);
}

.badge-1 {
    top: 10%;
    right: -10%;
    animation-delay: 0s;
}

.badge-2 {
    bottom: 10%;
    left: -10%;
    animation-delay: 1s;
}

@keyframes bounce {

    0%,
    100% {
        transform: translateY(0);
    }

    50% {
        transform: translateY(-10px);
    }
}

.scroll-indicator {
    position: absolute;
    bottom: var(--spacing-xl);
    left: 50%;
    transform: translateX(-50%);
    animation: scrollBounce 2s infinite;
}

.scroll-indicator a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border: 2px solid var(--color-primary);
    border-radius: 50%;
    color: var(--color-primary);
    font-size: var(--fs-xl);
}

@keyframes scrollBounce {

    0%,
    100% {
        transform: translateX(-50%) translateY(0);
    }

    50% {
        transform: translateX(-50%) translateY(10px);
    }
}

@keyframes fadeInLeft {
    from {
        opacity: 0;
        transform: translateX(-50px);
    }

    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes fadeInRight {
    from {
        opacity: 0;
        transform: translateX(50px);
    }

    to {
        opacity: 1;
        transform: translateX(0);
    }
}

/* ============================================
   ABOUT SECTION
   ============================================ */
.about {
    padding: var(--spacing-3xl) 0;
    background: var(--color-light);
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: var(--spacing-3xl);
    align-items: center;
}

.about-image {
    position: relative;
}

.image-container {
    position: relative;
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-xl);
}

.profile-img {
    width: 100%;
    height: auto;
    display: block;
}

.experience-badge {
    position: absolute;
    bottom: var(--spacing-lg);
    right: var(--spacing-lg);
    background: var(--color-primary);
    color: var(--color-secondary);
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    text-align: center;
    box-shadow: var(--shadow-lg);
}

.badge-number {
    display: block;
    font-size: var(--fs-4xl);
    font-weight: 700;
    line-height: 1;
}

.badge-text {
    display: block;
    font-size: var(--fs-sm);
    font-weight: 600;
    margin-top: var(--spacing-xs);
}

.about-text h3 {
    font-size: var(--fs-3xl);
    margin-bottom: var(--spacing-md);
}

.about-text .lead {
    font-size: var(--fs-xl);
    color: var(--color-accent);
    margin-bottom: var(--spacing-lg);
}

.about-text p {
    margin-bottom: var(--spacing-md);
    color: var(--color-accent);
    line-height: 1.8;
}

.credentials {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
    margin-top: var(--spacing-xl);
}

.credential-item {
    display: flex;
    gap: var(--spacing-md);
    align-items: flex-start;
}

.credential-item i {
    font-size: var(--fs-2xl);
    color: var(--color-primary);
    flex-shrink: 0;
}

.credential-item h4 {
    font-size: var(--fs-lg);
    margin-bottom: var(--spacing-xs);
}

.credential-item p {
    color: var(--color-accent);
    margin: 0;
}

/* ============================================
   METHODOLOGY SECTION
   ============================================ */
.methodology {
    padding: var(--spacing-3xl) 0;
}

.methodology-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-xl);
}

.method-card {
    background: var(--color-white);
    padding: var(--spacing-xl);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    transition: var(--transition-base);
    position: relative;
    border: 2px solid transparent;
}

.method-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-xl);
    border-color: var(--color-primary);
}

.method-card.featured {
    background: var(--gradient-primary);
    color: var(--color-secondary);
}

.method-card.featured h3,
.method-card.featured p {
    color: var(--color-secondary);
}

.featured-badge {
    position: absolute;
    top: var(--spacing-md);
    right: var(--spacing-md);
    background: var(--color-secondary);
    color: var(--color-primary);
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: var(--radius-full);
    font-size: var(--fs-xs);
    font-weight: 600;
    text-transform: uppercase;
}

.method-icon {
    width: 70px;
    height: 70px;
    background: var(--color-primary);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--spacing-lg);
    font-size: var(--fs-3xl);
    color: var(--color-secondary);
}

.method-card.featured .method-icon {
    background: var(--color-secondary);
    color: var(--color-primary);
}

.method-card h3 {
    font-size: var(--fs-xl);
    margin-bottom: var(--spacing-md);
}

.method-card p {
    color: var(--color-accent);
    margin-bottom: var(--spacing-lg);
}

.method-features {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.method-features li {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: var(--fs-sm);
}

.method-features i {
    color: var(--color-primary);
    font-size: var(--fs-base);
}

.method-card.featured .method-features i {
    color: var(--color-secondary);
}

/* ============================================
   VIDEOS SECTION
   ============================================ */
.videos {
    padding: var(--spacing-3xl) 0;
    background: var(--color-light);
}

.videos-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: var(--spacing-xl);
}

.video-card {
    background: var(--color-white);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: var(--transition-base);
}

.video-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
}

.video-thumbnail {
    position: relative;
    overflow: hidden;
    aspect-ratio: 16/9;
}

.video-thumbnail img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition-slow);
}

.video-card:hover .video-thumbnail img {
    transform: scale(1.1);
}

.play-button {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 60px;
    height: 60px;
    background: var(--color-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--fs-xl);
    color: var(--color-secondary);
    box-shadow: var(--shadow-lg);
    transition: var(--transition-base);
}

.video-card:hover .play-button {
    transform: translate(-50%, -50%) scale(1.1);
}

.video-duration {
    position: absolute;
    bottom: var(--spacing-sm);
    right: var(--spacing-sm);
    background: rgba(0, 0, 0, 0.8);
    color: var(--color-white);
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-sm);
    font-size: var(--fs-xs);
    font-weight: 600;
}

.video-info {
    padding: var(--spacing-lg);
}

.video-info h3 {
    font-size: var(--fs-lg);
    margin-bottom: var(--spacing-sm);
}

.video-info p {
    color: var(--color-accent);
    font-size: var(--fs-sm);
    margin-bottom: var(--spacing-md);
}

.video-meta {
    display: flex;
    gap: var(--spacing-lg);
    font-size: var(--fs-sm);
    color: var(--color-accent);
}

.video-meta span {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.video-meta i {
    color: var(--color-primary);
}

/* ============================================
   TESTIMONIALS SECTION
   ============================================ */
.testimonials {
    padding: var(--spacing-3xl) 0;
}

.testimonials-slider {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-3xl);
}

.testimonial-card {
    background: var(--color-white);
    padding: var(--spacing-xl);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    transition: var(--transition-base);
}

.testimonial-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
}

.stars {
    display: flex;
    gap: var(--spacing-xs);
    margin-bottom: var(--spacing-md);
}

.stars i {
    color: var(--color-primary);
    font-size: var(--fs-lg);
}

.testimonial-text {
    font-size: var(--fs-base);
    line-height: 1.8;
    color: var(--color-accent);
    margin-bottom: var(--spacing-lg);
    font-style: italic;
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.testimonial-author img {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    object-fit: cover;
}

.testimonial-author h4 {
    font-size: var(--fs-base);
    margin-bottom: var(--spacing-xs);
}

.testimonial-author p {
    font-size: var(--fs-sm);
    color: var(--color-accent);
}

.instagram-reviews {
    background: var(--color-light);
    padding: var(--spacing-2xl);
    border-radius: var(--radius-lg);
    text-align: center;
}

.instagram-title {
    font-size: var(--fs-2xl);
    margin-bottom: var(--spacing-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
}

.instagram-title i {
    background: linear-gradient(45deg, #f09433 0%, #e6683c 25%, #dc2743 50%, #cc2366 75%, #bc1888 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.instagram-subtitle {
    color: var(--color-accent);
    margin-bottom: var(--spacing-xl);
}

.instagram-cta {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-md);
}

.instagram-note {
    font-size: var(--fs-sm);
    color: var(--color-accent);
    font-style: italic;
}

/* ============================================
   PRODUCTS SECTION
   ============================================ */
.products {
    padding: var(--spacing-3xl) 0;
    background: var(--color-light);
}

.products-grid {
    display: flex;
    justify-content: center;
}

.product-card {
    background: var(--color-white);
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-xl);
    max-width: 500px;
    position: relative;
    transition: var(--transition-base);
}

.product-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-xl), var(--shadow-glow);
}

.product-badge {
    position: absolute;
    top: var(--spacing-lg);
    right: var(--spacing-lg);
    background: var(--color-primary);
    color: var(--color-secondary);
    padding: var(--spacing-sm) var(--spacing-lg);
    border-radius: var(--radius-full);
    font-weight: 700;
    font-size: var(--fs-sm);
    z-index: 10;
    box-shadow: var(--shadow-md);
}

.product-image {
    position: relative;
    height: 400px;
    overflow: hidden;
}

.product-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.product-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(248, 198, 41, 0.9);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: var(--transition-base);
}

.product-card:hover .product-overlay {
    opacity: 1;
}

.product-overlay i {
    font-size: 5rem;
    color: var(--color-secondary);
}

.product-content {
    padding: var(--spacing-xl);
}

.product-content h3 {
    font-size: var(--fs-2xl);
    margin-bottom: var(--spacing-md);
}

.product-description {
    color: var(--color-accent);
    margin-bottom: var(--spacing-lg);
    line-height: 1.8;
}

.product-includes {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-xl);
}

.product-includes li {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    color: var(--color-accent);
}

.product-includes i {
    color: var(--color-primary);
    font-size: var(--fs-lg);
}

.product-price {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
    flex-wrap: wrap;
}

.old-price {
    font-size: var(--fs-lg);
    color: var(--color-accent);
    text-decoration: line-through;
}

.current-price {
    font-size: var(--fs-4xl);
    font-weight: 700;
    color: var(--color-primary);
}

.discount-badge {
    background: #e74c3c;
    color: var(--color-white);
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: var(--radius-full);
    font-size: var(--fs-sm);
    font-weight: 700;
}

.product-guarantee {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-lg);
    padding: var(--spacing-md);
    background: var(--color-light);
    border-radius: var(--radius-md);
    font-size: var(--fs-sm);
    color: var(--color-accent);
}

.product-guarantee i {
    color: var(--color-primary);
    font-size: var(--fs-lg);
}

/* ============================================
   CONTACT SECTION
   ============================================ */
.contact {
    padding: var(--spacing-3xl) 0;
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: var(--spacing-3xl);
}

.contact-info h3 {
    font-size: var(--fs-2xl);
    margin-bottom: var(--spacing-md);
}

.contact-info>p {
    color: var(--color-accent);
    margin-bottom: var(--spacing-xl);
}

.contact-methods {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-xl);
}

.contact-method {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-lg);
    background: var(--color-light);
    border-radius: var(--radius-md);
    transition: var(--transition-base);
}

.contact-method:hover {
    background: var(--color-primary);
    transform: translateX(5px);
}

.method-icon {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--fs-xl);
    color: var(--color-white);
}

.method-icon.whatsapp {
    background: #25D366;
}

.method-icon.email {
    background: var(--color-accent);
}

.method-icon.instagram {
    background: linear-gradient(45deg, #f09433 0%, #e6683c 25%, #dc2743 50%, #cc2366 75%, #bc1888 100%);
}

.method-info h4 {
    font-size: var(--fs-base);
    margin-bottom: var(--spacing-xs);
}

.method-info p {
    font-size: var(--fs-sm);
    color: var(--color-accent);
}

.social-links {
    display: flex;
    gap: var(--spacing-md);
}

.social-links a {
    width: 45px;
    height: 45px;
    border-radius: 50%;
    background: var(--color-secondary);
    color: var(--color-white);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--fs-lg);
    transition: var(--transition-base);
}

.social-links a:hover {
    background: var(--color-primary);
    color: var(--color-secondary);
    transform: translateY(-3px);
}

.contact-form-wrapper {
    background: var(--color-light);
    padding: var(--spacing-xl);
    border-radius: var(--radius-lg);
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.form-group label {
    font-weight: 600;
    color: var(--color-secondary);
}

.form-group input,
.form-group select,
.form-group textarea {
    padding: var(--spacing-md);
    border: 2px solid transparent;
    border-radius: var(--radius-md);
    font-family: inherit;
    font-size: var(--fs-base);
    background: var(--color-white);
    transition: var(--transition-base);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--color-primary);
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

/* ============================================
   FOOTER
   ============================================ */
.footer {
    background: var(--color-secondary);
    color: var(--color-white);
    padding: var(--spacing-2xl) 0 var(--spacing-lg);
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: var(--spacing-3xl);
    margin-bottom: var(--spacing-xl);
}

.footer-brand img {
    height: 60px;
    margin-bottom: var(--spacing-md);
}

.footer-brand p {
    color: var(--color-accent-light);
}

.footer-links h4 {
    color: var(--color-primary);
    margin-bottom: var(--spacing-md);
}

.footer-links ul {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.footer-links a {
    color: var(--color-accent-light);
    transition: var(--transition-base);
}

.footer-links a:hover {
    color: var(--color-primary);
    padding-left: var(--spacing-xs);
}

.footer-bottom {
    text-align: center;
    height: 50px;
    background: var(--color-primary);
    color: var(--color-secondary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--fs-xl);
    box-shadow: var(--shadow-lg);
    opacity: 0;
    visibility: hidden;
    transition: var(--transition-base);
    z-index: var(--z-fixed);
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
}

.back-to-top:hover {
    background: var(--color-primary-dark);
    transform: translateY(-5px);
}

/* ============================================
   DARK MODE TOGGLE BUTTON
   ============================================ */
.dark-mode-toggle {
    background: transparent;
    border: 2px solid var(--color-secondary);
    color: var(--color-secondary);
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all var(--transition-base);
    font-size: var(--fs-lg);
    margin-left: var(--spacing-md);
}

.dark-mode-toggle:hover {
    background: var(--color-primary);
    border-color: var(--color-primary);
    color: var(--color-white);
    transform: rotate(20deg) scale(1.1);
}

.dark-mode-toggle:active {
    transform: rotate(20deg) scale(0.95);
}

/* Smooth transitions for theme switching */
body,
.navbar,
.hero,
.about,
.methodology,
.videos,
.testimonials,
.products,
.contact,
.footer,
.method-card,
.video-card,
.testimonial-card,
.product-card,
.floating-phrase {
    transition: background-color var(--transition-base),
        color var(--transition-base),
        border-color var(--transition-base);
}

/* ============================================
   RESPONSIVE DESIGN
   ============================================ */
@media (max-width: 1024px) {

    .hero-content,
    .about-content,
    .contact-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-2xl);
    }

    .hero-image {
        order: -1;
    }

    .hero-title {
        font-size: var(--fs-4xl);
    }

    .section-title {
        font-size: var(--fs-3xl);
    }
}

@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        top: 70px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 70px);
        background: var(--color-white);
        flex-direction: column;
        padding: var(--spacing-xl);
        box-shadow: var(--shadow-lg);
        transition: var(--transition-base);
    }

    .nav-menu.active {
        left: 0;
    }

    .hamburger {
        display: flex;
    }

    .hamburger.active span:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
    }

    .hamburger.active span:nth-child(2) {
        opacity: 0;
    }

    .hamburger.active span:nth-child(3) {
        transform: rotate(-45deg) translate(7px, -7px);
    }

    .hero-title {
        font-size: var(--fs-3xl);
    }

    .hero-buttons {
        flex-direction: column;
    }

    .hero-stats {
        flex-wrap: wrap;
        gap: var(--spacing-lg);
    }

    .methodology-grid {
        grid-template-columns: 1fr;
    }

    .footer-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-xl);
    }
}

@media (max-width: 480px) {
    :root {
        --fs-6xl: 2.5rem;
        --fs-5xl: 2rem;
        --fs-4xl: 1.75rem;
        --fs-3xl: 1.5rem;
    }

    .container {
        padding: 0 var(--spacing-md);
    }

    .hero-logo {
        max-width: 250px;
    }

    .floating-badge {
        font-size: var(--fs-xs);
        padding: var(--spacing-xs) var(--spacing-sm);
    }
}