/* ========================================
   Sveniverse - Modern Landing Page Styles
   Inspired by TEA App Design
   ======================================== */

/* CSS Variables - Soft Pastel Palette */
:root {
    /* Primary Colors */
    --color-mint: #7DD3C0;
    --color-mint-light: #A8E6CF;
    --color-peach: #FFD4A3;
    --color-yellow: #FFF4D6;
    --color-pink: #FFB6C1;
    --color-lavender: #E0BBE4;

    /* Neutral Colors */
    --color-white: #FFFFFF;
    --color-cream: #FFF9F0;
    --color-gray-50: #F9FAFB;
    --color-gray-100: #F3F4F6;
    --color-gray-200: #E5E7EB;
    --color-gray-400: #9CA3AF;
    --color-gray-600: #4B5563;
    --color-gray-800: #1F2937;
    --color-gray-900: #111827;

    /* Functional Colors */
    --color-primary: var(--color-mint);
    --color-secondary: var(--color-peach);
    --color-text: var(--color-gray-800);
    --color-text-light: var(--color-gray-600);

    /* Spacing */
    --container-width: 1200px;
    --section-padding: 5rem 2rem;

    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);

    /* Border Radius */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --radius-full: 9999px;

    /* Transitions */
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ========================================
   Global Styles
   ======================================== */

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Montserrat', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    font-weight: 400;
    color: var(--color-text);
    background: var(--color-cream);
    line-height: 1.6;
    overflow-x: hidden;
}

.container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 2rem;
}

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

h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.2;
    color: var(--color-gray-900);
}

.section-title {
    font-size: 2.5rem;
    font-weight: 800;
    margin-bottom: 1rem;
}

.section-title.center {
    text-align: center;
}

.section-subtitle {
    font-size: 1.125rem;
    color: var(--color-text-light);
    line-height: 1.7;
    max-width: 600px;
}

.section-subtitle.center {
    text-align: center;
    margin: 0 auto 3rem;
}

.highlight-mint {
    color: var(--color-mint);
}

.highlight-yellow {
    color: #FDB813;
}

/* ========================================
   Snow Animation Canvas
   ======================================== */

#snowCanvas {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 1;
    opacity: 0.6;
}

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

.main-header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-sm);
    z-index: 1000;
    padding: 1rem 0;
}

.header-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    text-decoration: none;
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--color-gray-900);
}

.logo-icon {
    font-size: 1.75rem;
}

.main-nav {
    display: flex;
    gap: 2rem;
    align-items: center;
}

.nav-link {
    text-decoration: none;
    color: var(--color-text);
    font-weight: 500;
    font-size: 0.95rem;
    transition: var(--transition);
    position: relative;
}

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

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--color-primary);
    transition: var(--transition);
}

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

/* ========================================
   Buttons
   ======================================== */

.btn {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    border-radius: var(--radius-full);
    font-weight: 600;
    font-size: 0.95rem;
    text-decoration: none;
    transition: var(--transition);
    cursor: pointer;
    border: none;
    font-family: inherit;
}

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

.btn-primary:hover {
    background: #6BC4B0;
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-secondary {
    background: var(--color-peach);
    color: var(--color-gray-900);
    box-shadow: var(--shadow-md);
}

.btn-secondary:hover {
    background: #FFC78A;
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-outline {
    background: transparent;
    color: var(--color-gray-900);
    border: 2px solid var(--color-gray-300);
}

.btn-outline:hover {
    background: var(--color-gray-100);
    border-color: var(--color-gray-400);
}

.btn-large {
    padding: 1rem 2.5rem;
    font-size: 1.125rem;
}

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

.hero-section {
    padding: 8rem 0 5rem;
    position: relative;
    z-index: 10;
    background: linear-gradient(180deg, var(--color-cream) 0%, var(--color-white) 100%);
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 1.5rem;
    color: var(--color-gray-900);
}

.hero-description {
    font-size: 1.125rem;
    color: var(--color-text-light);
    line-height: 1.7;
    margin-bottom: 2rem;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

/* Hero Image with Floating Icons */
.hero-image-wrapper {
    position: relative;
    width: 100%;
    padding-top: 100%;
}

.hero-placeholder {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 70%;
    height: 70%;
    background: linear-gradient(135deg, var(--color-yellow) 0%, var(--color-peach) 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-xl);
}

.hero-emoji {
    font-size: 8rem;
    animation: bounce 2s ease-in-out infinite;
}

.floating-icon {
    position: absolute;
    font-size: 2.5rem;
    animation: float 3s ease-in-out infinite;
    z-index: 10;
}

.icon-1 { top: 10%; left: 10%; animation-delay: 0s; }
.icon-2 { top: 15%; right: 15%; animation-delay: 0.5s; }
.icon-3 { bottom: 20%; left: 5%; animation-delay: 1s; }
.icon-4 { top: 45%; right: 5%; animation-delay: 1.5s; }
.icon-5 { bottom: 10%; right: 20%; animation-delay: 2s; }
.icon-6 { top: 60%; left: 10%; animation-delay: 2.5s; }

@keyframes float {
    0%, 100% { transform: translateY(0) rotate(0deg); }
    50% { transform: translateY(-20px) rotate(5deg); }
}

@keyframes bounce {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

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

.features-section {
    padding: var(--section-padding);
    background: var(--color-white);
    position: relative;
    z-index: 10;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2.5rem;
}

.feature-card {
    background: var(--color-white);
    border-radius: var(--radius-lg);
    padding: 2.5rem 2rem;
    text-align: center;
    box-shadow: var(--shadow-md);
    border: 1px solid var(--color-gray-200);
    transition: var(--transition);
}

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

.feature-icon {
    color: var(--color-mint);
    margin-bottom: 1.5rem;
    display: flex;
    justify-content: center;
}

.feature-icon svg {
    width: 60px;
    height: 60px;
}

.feature-title {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--color-gray-900);
}

.feature-description {
    color: var(--color-text-light);
    line-height: 1.6;
}

/* ========================================
   Learning Lab Section
   ======================================== */

.learning-lab-section {
    padding: var(--section-padding);
    background: linear-gradient(180deg, var(--color-cream) 0%, var(--color-white) 100%);
    position: relative;
    z-index: 10;
}

.lab-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.lab-card {
    background: var(--color-white);
    border-radius: var(--radius-lg);
    padding: 2rem;
    box-shadow: var(--shadow-md);
    border: 2px solid var(--color-gray-200);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.lab-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
    border-color: var(--color-mint);
}

.lab-badge {
    position: absolute;
    top: 1rem;
    right: 1rem;
    background: var(--color-mint);
    color: white;
    padding: 0.375rem 0.75rem;
    border-radius: var(--radius-full);
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.lab-icon {
    margin-bottom: 1.5rem;
    display: flex;
    justify-content: flex-start;
}

.lab-title {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: var(--color-gray-900);
}

.lab-excerpt {
    color: var(--color-text-light);
    line-height: 1.7;
    margin-bottom: 1.5rem;
}

.lab-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 1rem;
    border-top: 1px solid var(--color-gray-200);
}

.lab-category {
    background: var(--color-gray-100);
    color: var(--color-gray-800);
    padding: 0.375rem 0.75rem;
    border-radius: var(--radius-sm);
    font-size: 0.875rem;
    font-weight: 600;
}

.lab-date {
    color: var(--color-gray-600);
    font-size: 0.875rem;
    font-weight: 500;
}

/* ========================================
   Resources Section
   ======================================== */

.resources-section {
    padding: var(--section-padding);
    background: var(--color-white);
    position: relative;
    z-index: 10;
}

.resources-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.resource-card {
    background: var(--color-white);
    border-radius: var(--radius-lg);
    padding: 2rem;
    box-shadow: var(--shadow-md);
    border: 2px solid var(--color-gray-200);
    transition: var(--transition);
    position: relative;
    display: flex;
    flex-direction: column;
}

.resource-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
    border-color: var(--color-mint);
}

.resource-badge {
    position: absolute;
    top: 1rem;
    right: 1rem;
    background: var(--color-mint);
    color: white;
    padding: 0.375rem 0.75rem;
    border-radius: var(--radius-full);
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.resource-thumbnail {
    display: flex;
    justify-content: center;
    align-items: center;
    background: var(--color-gray-50);
    border-radius: var(--radius-md);
    padding: 2rem;
    margin-bottom: 1.5rem;
    min-height: 180px;
}

.resource-title {
    font-size: 1.375rem;
    font-weight: 700;
    margin-bottom: 0.75rem;
    color: var(--color-gray-900);
}

.resource-description {
    color: var(--color-text-light);
    line-height: 1.6;
    margin-bottom: 1.5rem;
    flex-grow: 1;
}

.resource-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 1rem;
    margin-top: auto;
    border-top: 1px solid var(--color-gray-200);
}

.resource-type {
    display: flex;
    align-items: center;
    gap: 0.375rem;
    color: var(--color-gray-700);
    font-size: 0.875rem;
    font-weight: 600;
}

.resource-size {
    color: var(--color-gray-600);
    font-size: 0.875rem;
    font-weight: 500;
}

/* ========================================
   How It Works Section
   ======================================== */

.how-it-works-section {
    padding: var(--section-padding);
    background: linear-gradient(180deg, var(--color-white) 0%, var(--color-cream) 100%);
    position: relative;
    z-index: 10;
}

.how-it-works-content {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: 4rem;
    align-items: center;
}

.image-circle {
    width: 100%;
    max-width: 400px;
    aspect-ratio: 1;
    background: linear-gradient(135deg, var(--color-mint-light) 0%, var(--color-mint) 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-xl);
    margin: 0 auto;
}

.placeholder-emoji {
    font-size: 10rem;
    animation: bounce 2s ease-in-out infinite;
}

.steps-list {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.step-item {
    display: flex;
    gap: 1.5rem;
    align-items: flex-start;
}

.step-number {
    flex-shrink: 0;
    width: 50px;
    height: 50px;
    background: var(--color-mint);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    font-weight: 700;
    box-shadow: var(--shadow-md);
}

.step-content h4 {
    font-size: 1.125rem;
    margin-bottom: 0.5rem;
    color: var(--color-gray-900);
}

.step-content p {
    color: var(--color-text-light);
    line-height: 1.6;
}

/* ========================================
   Occasions Section
   ======================================== */

.occasions-section {
    padding: var(--section-padding);
    background: var(--color-white);
    position: relative;
    z-index: 10;
}

.occasions-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.occasion-card {
    background: var(--color-white);
    border-radius: var(--radius-lg);
    padding: 2.5rem 2rem;
    text-align: center;
    box-shadow: var(--shadow-md);
    border: 2px solid var(--color-gray-200);
    transition: var(--transition);
    position: relative;
}

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

.occasion-card.active {
    border-color: var(--color-mint);
    background: linear-gradient(180deg, var(--color-white) 0%, #F0FFF4 100%);
}

.occasion-icon {
    font-size: 4rem;
    margin-bottom: 1rem;
    display: block;
}

.occasion-card h3 {
    font-size: 1.5rem;
    margin-bottom: 0.75rem;
    color: var(--color-gray-900);
}

.occasion-card p {
    color: var(--color-text-light);
    margin-bottom: 1.5rem;
}

.occasion-links {
    display: flex;
    gap: 0.75rem;
    justify-content: center;
    margin-bottom: 1rem;
}

.occasion-link {
    padding: 0.5rem 1.25rem;
    background: var(--color-mint);
    color: white;
    text-decoration: none;
    border-radius: var(--radius-full);
    font-weight: 600;
    font-size: 0.9rem;
    transition: var(--transition);
}

.occasion-link:hover {
    background: #6BC4B0;
    transform: translateY(-2px);
}

.occasion-badge {
    display: inline-block;
    padding: 0.5rem 1rem;
    background: var(--color-mint);
    color: white;
    border-radius: var(--radius-full);
    font-size: 0.85rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.occasion-badge.coming {
    background: var(--color-gray-400);
}

/* ========================================
   About Section
   ======================================== */

.about-section {
    padding: var(--section-padding);
    background: linear-gradient(180deg, var(--color-cream) 0%, var(--color-white) 100%);
    position: relative;
    z-index: 10;
}

.about-content {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 4rem;
    align-items: center;
}

.about-text p {
    color: var(--color-text-light);
    line-height: 1.7;
    margin-bottom: 1.5rem;
}

.illustration-circle {
    width: 100%;
    max-width: 350px;
    aspect-ratio: 1;
    background: linear-gradient(135deg, var(--color-lavender) 0%, var(--color-pink) 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-xl);
    margin: 0 auto;
}

.illustration-content {
    position: relative;
}

.cute-face {
    width: 150px;
    height: 150px;
    position: relative;
}

.eye {
    width: 20px;
    height: 20px;
    background: white;
    border-radius: 50%;
    position: absolute;
    top: 40px;
}

.eye::after {
    content: '';
    width: 10px;
    height: 10px;
    background: var(--color-gray-900);
    border-radius: 50%;
    position: absolute;
    top: 5px;
    left: 5px;
}

.eye.left {
    left: 30px;
}

.eye.right {
    right: 30px;
}

.smile {
    width: 60px;
    height: 30px;
    border: 4px solid white;
    border-top: none;
    border-radius: 0 0 60px 60px;
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
}

/* ========================================
   CTA Section
   ======================================== */

.cta-section {
    padding: 4rem 2rem;
    background: linear-gradient(135deg, var(--color-mint) 0%, var(--color-mint-light) 100%);
    position: relative;
    z-index: 10;
}

.cta-content {
    text-align: center;
    max-width: 600px;
    margin: 0 auto;
}

.cta-title {
    font-size: 2.5rem;
    font-weight: 800;
    color: white;
    margin-bottom: 1rem;
}

.cta-description {
    font-size: 1.125rem;
    color: white;
    opacity: 0.95;
    margin-bottom: 2rem;
    line-height: 1.7;
}

.cta-section .btn-large {
    background: white;
    color: var(--color-mint);
}

.cta-section .btn-large:hover {
    background: var(--color-gray-100);
    transform: translateY(-2px);
}

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

.main-footer {
    background: var(--color-gray-900);
    color: white;
    padding: 3rem 0 1.5rem;
    position: relative;
    z-index: 10;
}

.footer-content {
    display: grid;
    grid-template-columns: 1.5fr 1fr;
    gap: 3rem;
    margin-bottom: 2rem;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1.5rem;
    font-weight: 800;
    margin-bottom: 1rem;
}

.footer-tagline {
    color: var(--color-gray-400);
    font-size: 0.95rem;
}

.footer-links {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
}

.footer-column h4 {
    color: white;
    font-size: 1rem;
    margin-bottom: 1rem;
    font-weight: 600;
}

.footer-column a {
    display: block;
    color: var(--color-gray-400);
    text-decoration: none;
    margin-bottom: 0.75rem;
    transition: var(--transition);
    font-size: 0.9rem;
}

.footer-column a:hover {
    color: var(--color-mint);
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-bottom p {
    color: var(--color-gray-400);
    font-size: 0.9rem;
}

/* ========================================
   Responsive Design
   ======================================== */

@media (max-width: 1024px) {
    .hero-content,
    .how-it-works-content {
        grid-template-columns: 1fr;
        gap: 3rem;
    }

    .hero-content {
        text-align: center;
    }

    .hero-image-wrapper,
    .image-circle {
        max-width: 400px;
        margin: 0 auto;
    }

    .about-content {
        grid-template-columns: 1fr;
    }

    .about-text,
    .how-it-works-text {
        text-align: center;
    }

    .how-it-works-image,
    .about-illustration {
        order: -1;
        margin-bottom: 2rem;
    }
}

@media (max-width: 768px) {
    .main-nav {
        display: none;
    }

    .hero-title {
        font-size: 2.5rem;
        text-align: center;
    }

    .hero-description {
        text-align: center;
    }

    .hero-buttons {
        justify-content: center;
    }

    .hero-text {
        text-align: center;
    }

    .section-title {
        font-size: 2rem;
        text-align: center;
    }

    .section-subtitle {
        text-align: center;
        margin: 0 auto 2rem;
    }

    .hero-image-wrapper,
    .image-circle,
    .illustration-circle {
        margin: 0 auto;
    }

    .features-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .lab-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .resources-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

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

    .footer-content {
        grid-template-columns: 1fr;
    }

    .hero-section {
        padding: 6rem 0 3rem;
    }

    .floating-icon {
        font-size: 2rem;
    }

    .hero-emoji {
        font-size: 5rem;
    }

    .placeholder-emoji {
        font-size: 6rem;
    }

    .about-text {
        text-align: center;
    }

    .how-it-works-text {
        text-align: center;
    }

    .steps-list {
        align-items: center;
    }

    .step-item {
        text-align: left;
        max-width: 500px;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 2rem;
        text-align: center;
    }

    .hero-description {
        font-size: 1rem;
        text-align: center;
    }

    .hero-buttons {
        flex-direction: column;
        width: 100%;
    }

    .btn {
        width: 100%;
        text-align: center;
    }

    .section-padding {
        padding: 3rem 1.5rem;
    }

    .section-title {
        font-size: 1.75rem;
    }
}

/* Portrait Orientation Specific */
@media (max-width: 768px) and (orientation: portrait) {
    .hero-title {
        text-align: center;
    }

    .hero-text {
        text-align: center;
    }

    .section-title,
    .section-subtitle {
        text-align: center;
    }

    .hero-image-wrapper,
    .image-circle,
    .illustration-circle {
        margin: 0 auto;
        max-width: 90%;
    }

    .about-text,
    .how-it-works-text,
    .cta-content {
        text-align: center;
    }
}