/* ========================================
   STACKD - Gen Z Playful Edition
   Because likes get lost.
   ======================================== */

/* Brand Tokens */
:root {
    /* Colors */
    --color-primary: #FF6B35;
    --color-secondary: #FF4081;
    --color-accent: #FF8A65;
    --color-background: #FFF5F5;
    --color-surface: #FFFFFF;
    --color-surface-alt: #FFF0F0;
    --color-text-primary: #1A1A1A;
    --color-text-secondary: #6B7280;
    --color-text-muted: #9CA3AF;
    --color-border: rgba(255, 107, 53, 0.15);
    --color-glow: #FF6B35;
    
    /* Gradients */
    --gradient-primary: linear-gradient(135deg, #FF6B35 0%, #FF4081 50%, #FF8A65 100%);
    --gradient-text: linear-gradient(90deg, #FF6B35 0%, #FF4081 100%);
    --gradient-subtle: radial-gradient(circle at top right, rgba(255, 107, 53, 0.1) 0%, transparent 40%),
                       radial-gradient(circle at bottom left, rgba(255, 64, 129, 0.1) 0%, transparent 40%);
    --gradient-blob: radial-gradient(circle at 30% 50%, #FF6B35 0%, #FF4081 50%, transparent 70%);
    
    /* Typography */
    --font-display: 'Bebas Neue', 'Impact', sans-serif;
    --font-body: 'DM Sans', -apple-system, sans-serif;
    --font-mono: 'Space Mono', monospace;
    
    /* Font Sizes - More Extreme */
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.25rem;
    --font-size-xl: 1.5rem;
    --font-size-2xl: 2rem;
    --font-size-3xl: 2.5rem;
    --font-size-4xl: 3.5rem;
    --font-size-5xl: 4.5rem;
    --font-size-huge: clamp(4rem, 12vw, 8rem);
    --font-size-mega: clamp(5rem, 15vw, 10rem);
    
    /* Spacing */
    --space-1: 0.25rem;
    --space-2: 0.5rem;
    --space-3: 0.75rem;
    --space-4: 1rem;
    --space-6: 1.5rem;
    --space-8: 2rem;
    --space-12: 3rem;
    --space-16: 4rem;
    --space-20: 5rem;
    --space-24: 6rem;
    --space-32: 8rem;
    
    /* Border Radius */
    --radius-sm: 0.75rem;
    --radius-md: 1rem;
    --radius-lg: 1.5rem;
    --radius-xl: 2rem;
    --radius-2xl: 3rem;
    --radius-blob: 30% 70% 70% 30% / 30% 30% 70% 70%;
    --radius-full: 9999px;
    
    /* Shadows */
    --shadow-sm: 0 2px 8px rgba(255, 107, 53, 0.1);
    --shadow-md: 0 8px 24px rgba(255, 107, 53, 0.15);
    --shadow-lg: 0 16px 48px rgba(255, 107, 53, 0.2);
    --shadow-xl: 0 24px 64px rgba(255, 107, 53, 0.25);
    --shadow-glow: 0 0 40px rgba(255, 107, 53, 0.4);
    --shadow-hard: 4px 4px 0 #000;
    
    /* Animations */
    --transition-bounce: cubic-bezier(0.68, -0.55, 0.265, 1.55);
    --transition-smooth: cubic-bezier(0.4, 0, 0.2, 1);
}

/* Font Imports */
@import url('https://fonts.googleapis.com/css2?family=Bebas+Neue&family=DM+Sans:wght@400;500;700;900&family=Space+Mono:wght@400;700&display=swap');

/* Reset */
*, *::before, *::after {
    box-sizing: border-box;
}

* {
    margin: 0;
    padding: 0;
}

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

body {
    font-family: var(--font-body);
    font-size: var(--font-size-base);
    line-height: 1.6;
    color: var(--color-text-primary);
    background: var(--color-background);
    overflow-x: hidden;
    position: relative;
}

/* Background Pattern */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: 
        radial-gradient(circle at 20% 80%, rgba(255, 107, 53, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(255, 64, 129, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 50% 50%, rgba(255, 138, 101, 0.05) 0%, transparent 50%);
    pointer-events: none;
    z-index: -1;
}

/* Floating Shapes */
.floating-shape {
    position: fixed;
    pointer-events: none;
    z-index: -1;
    opacity: 0.1;
}

.floating-shape--1 {
    top: 10%;
    left: 5%;
    width: 100px;
    height: 100px;
    background: var(--gradient-primary);
    border-radius: var(--radius-blob);
    animation: float-1 20s ease-in-out infinite;
}

.floating-shape--2 {
    top: 70%;
    right: 10%;
    width: 150px;
    height: 150px;
    background: var(--gradient-primary);
    border-radius: 60% 40% 30% 70% / 60% 30% 70% 40%;
    animation: float-2 25s ease-in-out infinite;
}

@keyframes float-1 {
    0%, 100% { transform: translate(0, 0) rotate(0deg) scale(1); }
    33% { transform: translate(30px, -30px) rotate(120deg) scale(1.1); }
    66% { transform: translate(-20px, 40px) rotate(240deg) scale(0.9); }
}

@keyframes float-2 {
    0%, 100% { transform: translate(0, 0) rotate(0deg); }
    50% { transform: translate(-40px, -60px) rotate(180deg); }
}

/* Container */
.container {
    width: 100%;
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--space-6);
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-display);
    font-weight: 400;
    line-height: 0.9;
    letter-spacing: 0.02em;
    text-transform: uppercase;
}

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

/* Sticker-like Elements */
.sticker {
    display: inline-block;
    padding: var(--space-2) var(--space-4);
    background: var(--gradient-primary);
    color: white;
    border-radius: var(--radius-full);
    font-family: var(--font-mono);
    font-size: var(--font-size-sm);
    font-weight: 700;
    transform: rotate(-5deg);
    box-shadow: var(--shadow-md);
}

/* Buttons - More Playful */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-4) var(--space-8);
    font-family: var(--font-body);
    font-size: var(--font-size-base);
    font-weight: 700;
    border-radius: var(--radius-full);
    border: none;
    cursor: pointer;
    position: relative;
    transition: all 0.2s var(--transition-bounce);
    text-decoration: none;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    transform-style: preserve-3d;
}

.btn::before {
    content: '';
    position: absolute;
    top: 100%;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.1);
    border-radius: inherit;
    transform: translateZ(-1px) translateY(-95%);
    transition: transform 0.2s;
}

.btn:hover {
    transform: translateY(-4px);
}

.btn:hover::before {
    transform: translateZ(-1px) translateY(-85%);
}

.btn:active {
    transform: translateY(0);
}

.btn--primary {
    background: var(--gradient-primary);
    color: white;
    box-shadow: 0 4px 0 rgba(0, 0, 0, 0.2);
}

.btn--primary:hover {
    box-shadow: 0 6px 0 rgba(0, 0, 0, 0.2);
}

.btn--secondary {
    background: white;
    color: var(--color-primary);
    border: 3px solid var(--color-primary);
    box-shadow: 3px 3px 0 var(--color-primary);
}

.btn--secondary:hover {
    background: var(--color-primary);
    color: white;
    box-shadow: 5px 5px 0 var(--color-primary);
}

/* Header - Floating Pill */
.header {
    position: fixed;
    top: var(--space-4);
    left: 50%;
    transform: translateX(-50%);
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(20px);
    border: 2px solid var(--color-border);
    border-radius: var(--radius-full);
    padding: var(--space-2);
    z-index: 100;
    transition: all 0.3s ease;
    max-width: 90%;
    width: auto;
}

.nav {
    display: flex;
    align-items: center;
    gap: var(--space-8);
    padding: 0 var(--space-4);
}

.logo {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    font-family: var(--font-display);
    font-size: var(--font-size-xl);
    color: var(--color-text-primary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.nav__menu {
    display: flex;
    align-items: center;
    gap: var(--space-6);
}

.nav__link {
    font-weight: 700;
    color: var(--color-text-primary);
    position: relative;
    text-transform: uppercase;
    font-size: var(--font-size-sm);
    letter-spacing: 0.05em;
    transition: all 0.2s ease;
}

.nav__link:hover {
    color: var(--color-primary);
    transform: translateY(-2px);
}

/* Hero Section - Asymmetric & Bold */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: var(--space-32) 0 var(--space-16);
    position: relative;
}

.hero__bg {
    position: absolute;
    top: 50%;
    right: -10%;
    width: 600px;
    height: 600px;
    background: var(--gradient-blob);
    filter: blur(100px);
    opacity: 0.3;
    animation: blob-spin 30s linear infinite;
}

@keyframes blob-spin {
    from { transform: rotate(0deg) translate(-50%, -50%); }
    to { transform: rotate(360deg) translate(-50%, -50%); }
}

.hero__content {
    position: relative;
    z-index: 10;
}

.hero__tagline {
    display: inline-block;
    padding: var(--space-3) var(--space-6);
    background: var(--color-primary);
    color: white;
    border-radius: var(--radius-full);
    font-family: var(--font-mono);
    font-size: var(--font-size-sm);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    transform: rotate(-2deg);
    margin-bottom: var(--space-6);
    box-shadow: var(--shadow-md);
    animation: wiggle 4s ease-in-out infinite;
}

@keyframes wiggle {
    0%, 100% { transform: rotate(-2deg); }
    50% { transform: rotate(2deg); }
}

.hero__title {
    font-size: var(--font-size-mega);
    font-weight: 400;
    line-height: 0.85;
    margin-bottom: var(--space-6);
    letter-spacing: -0.02em;
}

.hero__title span {
    display: block;
}

.hero__title .line-2 {
    margin-left: var(--space-8);
    color: var(--color-primary);
}

.hero__title .line-3 {
    margin-left: var(--space-16);
    font-family: var(--font-body);
    font-size: var(--font-size-2xl);
    font-weight: 900;
    text-transform: none;
    font-style: italic;
}

.hero__subtitle {
    font-size: var(--font-size-xl);
    max-width: 500px;
    margin-bottom: var(--space-8);
    font-weight: 500;
}

/* Emoji Rain */
.emoji-rain {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 100%;
    overflow: hidden;
    pointer-events: none;
}

.emoji {
    position: absolute;
    font-size: var(--font-size-2xl);
    animation: fall linear infinite;
    opacity: 0.7;
}

@keyframes fall {
    to {
        transform: translateY(100vh) rotate(360deg);
    }
}

/* Feature Cards - Tilted Grid */
.features {
    padding: var(--space-32) 0;
    position: relative;
}

.features__title {
    font-size: var(--font-size-huge);
    text-align: center;
    margin-bottom: var(--space-16);
    transform: rotate(-2deg);
}

.card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--space-8);
    max-width: 1200px;
    margin: 0 auto;
}

.card {
    background: white;
    border: 3px solid var(--color-text-primary);
    border-radius: var(--radius-xl);
    padding: var(--space-8);
    position: relative;
    transition: all 0.3s var(--transition-bounce);
    box-shadow: 5px 5px 0 var(--color-text-primary);
}

.card:nth-child(odd) {
    transform: rotate(-2deg);
}

.card:nth-child(even) {
    transform: rotate(2deg);
}

.card:hover {
    transform: rotate(0deg) scale(1.05);
    box-shadow: 8px 8px 0 var(--color-primary);
    border-color: var(--color-primary);
}

.card__emoji {
    font-size: var(--font-size-4xl);
    display: block;
    margin-bottom: var(--space-4);
}

.card__title {
    font-family: var(--font-display);
    font-size: var(--font-size-2xl);
    margin-bottom: var(--space-2);
    text-transform: uppercase;
}

.card__text {
    font-size: var(--font-size-base);
    color: var(--color-text-secondary);
}

/* Stats Section - Big & Bold */
.stats {
    padding: var(--space-24) 0;
    background: var(--gradient-subtle);
    transform: skewY(-3deg);
    margin: var(--space-32) 0;
}

.stats > * {
    transform: skewY(3deg);
}

.stats__grid {
    display: flex;
    justify-content: center;
    gap: var(--space-16);
    flex-wrap: wrap;
}

.stat {
    text-align: center;
}

.stat__number {
    font-family: var(--font-display);
    font-size: var(--font-size-huge);
    color: var(--color-primary);
    line-height: 1;
    text-shadow: 3px 3px 0 rgba(0, 0, 0, 0.1);
}

.stat__label {
    font-family: var(--font-mono);
    font-size: var(--font-size-base);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--color-text-secondary);
}

/* Reviews - Speech Bubbles */
.reviews {
    padding: var(--space-32) 0;
}

.reviews__grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--space-8);
    max-width: 1000px;
    margin: 0 auto;
}

.review {
    background: white;
    border: 3px solid var(--color-text-primary);
    border-radius: var(--radius-xl);
    padding: var(--space-6);
    position: relative;
    transform: rotate(-1deg);
    transition: all 0.3s ease;
}

.review:nth-child(even) {
    transform: rotate(1deg);
}

.review:hover {
    transform: rotate(0deg) translateY(-4px);
    border-color: var(--color-primary);
}

.review::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50px;
    width: 0;
    height: 0;
    border-left: 15px solid transparent;
    border-right: 15px solid transparent;
    border-top: 15px solid var(--color-text-primary);
}

.review:hover::after {
    border-top-color: var(--color-primary);
}

.review__text {
    font-size: var(--font-size-lg);
    font-weight: 500;
    margin-bottom: var(--space-4);
}

.review__author {
    font-family: var(--font-mono);
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
}

/* CTA Section - Big Energy */
.cta {
    padding: var(--space-32) 0;
    text-align: center;
    position: relative;
}

.cta__title {
    font-size: var(--font-size-huge);
    margin-bottom: var(--space-8);
    animation: scale-bounce 2s ease-in-out infinite;
}

@keyframes scale-bounce {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.05); }
}

.cta__button {
    display: inline-block;
    padding: var(--space-6) var(--space-12);
    background: var(--gradient-primary);
    color: white;
    border-radius: var(--radius-full);
    font-size: var(--font-size-xl);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    box-shadow: 0 8px 0 rgba(0, 0, 0, 0.2);
    transition: all 0.2s ease;
    position: relative;
    overflow: hidden;
}

.cta__button::before {
    content: '✨';
    position: absolute;
    font-size: var(--font-size-4xl);
    animation: sparkle 3s linear infinite;
}

@keyframes sparkle {
    from {
        left: -50px;
        transform: rotate(0deg);
    }
    to {
        left: calc(100% + 50px);
        transform: rotate(360deg);
    }
}

.cta__button:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 0 rgba(0, 0, 0, 0.2);
}

/* Footer - Minimal & Fun */
.footer {
    padding: var(--space-16) 0 var(--space-8);
    background: white;
    border-top: 3px solid var(--color-text-primary);
    margin-top: var(--space-32);
}

.footer__content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--space-8);
}

.footer__links {
    display: flex;
    gap: var(--space-6);
    flex-wrap: wrap;
}

.footer__links a {
    font-family: var(--font-mono);
    font-size: var(--font-size-sm);
    font-weight: 700;
    color: var(--color-text-primary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    transition: all 0.2s ease;
}

.footer__links a:hover {
    color: var(--color-primary);
    transform: translateY(-2px);
}

/* Mobile Adjustments */
@media (max-width: 768px) {
    .hero__title {
        font-size: var(--font-size-5xl);
    }
    
    .hero__title .line-2,
    .hero__title .line-3 {
        margin-left: 0;
    }
    
    .card-grid {
        grid-template-columns: 1fr;
    }
    
    .header {
        top: var(--space-2);
        max-width: 95%;
    }
    
    .nav {
        gap: var(--space-4);
    }
    
    .nav__menu {
        display: none;
    }
    
    .stats__grid {
        gap: var(--space-8);
    }
}

/* Fun Hover States */
a {
    position: relative;
    color: inherit;
    text-decoration: none;
}

button {
    cursor: pointer;
}

/* Selection Color */
::selection {
    background: var(--color-primary);
    color: white;
}

/* Scrollbar */
::-webkit-scrollbar {
    width: 12px;
}

::-webkit-scrollbar-track {
    background: var(--color-background);
}

::-webkit-scrollbar-thumb {
    background: var(--gradient-primary);
    border-radius: var(--radius-full);
}

/* Loading Animation */
@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

.loading {
    animation: pulse 1.5s ease-in-out infinite;
}