@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&display=swap');

:root {
    /* Colors */
    --bg-color: #09090b;       /* Zinc 950 */
    --card-bg: #18181b;        /* Zinc 900 */
    --text-primary: #fafafa;   /* Zinc 50 */
    --text-secondary: #a1a1aa; /* Zinc 400 */
    --accent-indigo: #4f46e5;  /* Indigo 600 */
    --accent-purple: #9333ea;  /* Purple 600 */
    --border-color: #27272a;   /* Zinc 800 */
    
    /* Gradients */
    --glow-gradient: linear-gradient(to right, var(--accent-indigo), var(--accent-purple));
    
    /* Spacing & Layout */
    --max-width: 1200px;
    --nav-height: 80px;
    
    /* Effects */
    --glass-bg: rgba(24, 24, 27, 0.6);
    --glass-border: rgba(255, 255, 255, 0.1);
    --blur: 12px;
}

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

body {
    background-color: var(--bg-color);
    color: var(--text-primary);
    font-family: 'Inter', sans-serif;
    line-height: 1.6;
    overflow-x: hidden;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    color: var(--text-primary);
    font-weight: 700;
    line-height: 1.2;
}

h1 { font-size: 3.5rem; letter-spacing: -0.02em; }
h2 { font-size: 2.5rem; letter-spacing: -0.01em; margin-bottom: 2rem; }
h3 { font-size: 1.5rem; margin-bottom: 0.5rem; }

p {
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
}

a {
    text-decoration: none;
    color: inherit;
    transition: all 0.3s ease;
}

/* Utility Classes */
.container {
    width: 90%;
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 1rem;
}

.section {
    padding: 5rem 0;
}

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

.glass-panel {
    background: var(--glass-bg);
    backdrop-filter: blur(var(--blur));
    border: 1px solid var(--border-color);
    border-radius: 1rem;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.75rem 1.5rem;
    border-radius: 0.5rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    border: none;
    font-size: 1rem;
    gap: 0.5rem;
}

.btn-primary {
    background: var(--accent-indigo);
    color: white;
    box-shadow: 0 0 15px rgba(79, 70, 229, 0.3);
}

.btn-primary:hover {
    background: #4338ca; /* Indigo 700 */
    box-shadow: 0 0 25px rgba(79, 70, 229, 0.5);
    transform: translateY(-2px);
}

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

.btn-secondary:hover {
    background: var(--card-bg);
    border-color: var(--text-secondary);
    transform: translateY(-2px);
}

/* Grid Layouts */
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 2rem; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 2rem; }
.grid-auto { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 2rem; }

@media (max-width: 768px) {
    h1 { font-size: 2.5rem; }
    h2 { font-size: 2rem; }
    .grid-2, .grid-3 { grid-template-columns: 1fr; }
}

/* Background Grid Pattern */
.bg-grid {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    background-image: linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
    background-size: 50px 50px;
    pointer-events: none;
}
/* =========================================
   Animations
   ========================================= */

/* Base class for animated elements */
.animate-on-scroll {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.6s cubic-bezier(0.645, 0.045, 0.355, 1);
}

/* State when element is visible */
.animate-visible {
    opacity: 1;
    transform: translateY(0);
}

/* Stagger delays for grid items */
.stagger-1 { transition-delay: 100ms; }
.stagger-2 { transition-delay: 200ms; }
.stagger-3 { transition-delay: 300ms; }
.stagger-4 { transition-delay: 400ms; }
.stagger-5 { transition-delay: 500ms; }
.stagger-6 { transition-delay: 600ms; }

/* Keyframes */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translate3d(0, 40px, 0);
    }
    to {
        opacity: 1;
        transform: translate3d(0, 0, 0);
    }
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

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

@keyframes pulse-glow {
    0% { box-shadow: 0 0 0 0 rgba(79, 70, 229, 0.4); }
    70% { box-shadow: 0 0 0 10px rgba(79, 70, 229, 0); }
    100% { box-shadow: 0 0 0 0 rgba(79, 70, 229, 0); }
}

/* Hover Effects */
.glass-panel {
    transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
}

.glass-panel:hover {
    transform: translateY(-5px);
    border-color: rgba(79, 70, 229, 0.3);
    box-shadow: 0 10px 30px -10px rgba(0, 0, 0, 0.5);
}

/* Hero Animations */
.hero-content h1 {
    animation: fadeInUp 0.8s ease-out forwards;
}

.hero-content h2 {
    animation: fadeInUp 0.8s ease-out 0.2s forwards;
    opacity: 0; /* Initial state before animation */
}

.hero-content p {
    animation: fadeInUp 0.8s ease-out 0.4s forwards;
    opacity: 0;
}

.hero-content .btn {
    animation: fadeIn 1s ease-out 0.6s forwards;
    opacity: 0;
}

.wave {
    animation: wave 2.5s infinite;
    display: inline-block;
    transform-origin: 70% 70%;
}

@keyframes wave {
    0% { transform: rotate(0deg); }
    10% { transform: rotate(14deg); }
    20% { transform: rotate(-8deg); }
    30% { transform: rotate(14deg); }
    40% { transform: rotate(-4deg); }
    50% { transform: rotate(10deg); }
    60% { transform: rotate(0deg); }
    100% { transform: rotate(0deg); }
}