/* Base & Variables */
:root {
    --primary: #818cf8;       /* Indigo 400 */
    --primary-light: #a5b4fc; /* Indigo 300 */
    --primary-dark: #6366f1;  /* Indigo 500 */
    
    --secondary: #38bdf8;     /* Sky 400 */
    --accent: #f472b6;        /* Pink 400 */
    
    --bg-main: #0f172a;       /* Slate 900 - Semi Dark */
    --bg-alt: #1e293b;        /* Slate 800 */
    --bg-card: #1e293b;       
    --bg-card-hover: #334155; /* Slate 700 */
    
    --text-main: #f8fafc;     /* Slate 50 */
    --text-body: #cbd5e1;     /* Slate 300 */
    --text-muted: #94a3b8;    /* Slate 400 */
    
    --border-light: #334155;  /* Slate 700 */
    --border-med: #475569;    /* Slate 600 */
    
    --danger: #f87171;        /* Red 400 */
    --success: #34d399;       /* Emerald 400 */

    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.3);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.4), 0 2px 4px -2px rgb(0 0 0 / 0.4);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.5), 0 4px 6px -4px rgb(0 0 0 / 0.5);
    --shadow-hover: 0 20px 25px -5px rgb(0 0 0 / 0.6), 0 8px 10px -6px rgb(0 0 0 / 0.6);
    
    --radius-md: 0.5rem;
    --radius-lg: 1rem;
    --radius-xl: 1.5rem;
    
    --transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
    scroll-behavior: smooth;
}

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

h1, h2, h3, h4 {
    color: var(--text-main);
    line-height: 1.2;
    font-weight: 700;
}

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

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

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

.bg-alt {
    background-color: var(--bg-alt);
}

/* Utilities */
.gradient-text {
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    background: rgba(129, 140, 248, 0.15);
    color: var(--primary);
    border-radius: 2rem;
    font-weight: 600;
    font-size: 0.875rem;
    margin-bottom: 1.5rem;
    border: 1px solid rgba(129, 140, 248, 0.3);
    transition: var(--transition);
}

.badge:hover {
    background: rgba(129, 140, 248, 0.25);
    transform: scale(1.05);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    border-radius: var(--radius-md);
    font-weight: 600;
    transition: var(--transition);
    cursor: pointer;
    border: none;
}

.btn-primary {
    background-color: var(--primary-dark);
    color: white;
    box-shadow: 0 4px 14px 0 rgba(99, 102, 241, 0.4);
}

.btn-primary:hover {
    background-color: var(--primary);
    transform: translateY(-3px) scale(1.02);
    box-shadow: 0 8px 25px rgba(99, 102, 241, 0.5);
}

.btn-outline {
    background-color: transparent;
    color: var(--text-main);
    border: 1px solid var(--border-med);
}

.btn-outline:hover {
    border-color: var(--primary);
    color: var(--primary-light);
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.3);
    background: rgba(129, 140, 248, 0.05);
}

/* Navbar */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(15, 23, 42, 0.85); /* Semi dark transparent */
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border-light);
    z-index: 1000;
    padding: 1rem 0;
    transition: var(--transition);
}

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

.logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 800;
    font-size: 1.25rem;
    color: var(--text-main);
    transition: transform 0.3s ease;
}

.logo:hover {
    transform: scale(1.05);
}

.logo-icon {
    color: var(--primary);
    animation: pulse-glow 3s infinite alternate;
}

.nav-links {
    display: flex;
    gap: 2rem;
}

.nav-links a {
    font-weight: 500;
    color: var(--text-body);
    transition: var(--transition);
    position: relative;
}

.nav-links a::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    bottom: -4px;
    left: 0;
    background-color: var(--primary);
    transition: width 0.3s ease;
}

.nav-links a:hover {
    color: var(--primary-light);
}

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

/* Hero Section */
.hero {
    position: relative;
    padding-top: 12rem;
    padding-bottom: 8rem;
    text-align: center;
    overflow: hidden;
}

.bg-blobs {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    overflow: hidden;
    z-index: -1;
    opacity: 0.6;
}

.blob {
    position: absolute;
    filter: blur(90px);
    border-radius: 50%;
    animation: float 12s ease-in-out infinite;
}

.blob-1 {
    top: -10%;
    left: -10%;
    width: 500px;
    height: 500px;
    background: rgba(99, 102, 241, 0.3);
}

.blob-2 {
    bottom: -20%;
    right: -10%;
    width: 600px;
    height: 600px;
    background: rgba(14, 165, 233, 0.25);
    animation-delay: -6s;
}

@keyframes float {
    0%, 100% { transform: translate(0, 0) scale(1); }
    33% { transform: translate(5%, 10%) scale(1.05); }
    66% { transform: translate(-5%, 5%) scale(0.95); }
}

.hero-title {
    font-size: 4.5rem;
    margin-bottom: 1.5rem;
    letter-spacing: -0.02em;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--text-body);
    max-width: 800px;
    margin: 0 auto 2.5rem;
}

.hero-actions {
    display: flex;
    justify-content: center;
    gap: 1.5rem;
    margin-bottom: 5rem;
}

/* Mockup Browser */
.hero-mockup {
    max-width: 700px;
    margin: 0 auto;
    background: var(--bg-card);
    border-radius: var(--radius-xl);
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.6);
    border: 1px solid var(--border-light);
    overflow: hidden;
    text-align: left;
    transition: transform 0.5s ease, box-shadow 0.5s ease;
}

.hero-mockup:hover {
    transform: translateY(-10px) scale(1.02);
    box-shadow: 0 30px 60px -15px rgba(99, 102, 241, 0.3);
    border-color: rgba(99, 102, 241, 0.4);
}

.browser-header {
    background: #334155;
    padding: 1rem;
    border-bottom: 1px solid #0f172a;
}

.dots {
    display: flex;
    gap: 0.5rem;
}

.dots span {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: #475569;
    transition: background 0.3s ease;
}

.hero-mockup:hover .dots span:nth-child(1) { background: #ef4444; }
.hero-mockup:hover .dots span:nth-child(2) { background: #f59e0b; }
.hero-mockup:hover .dots span:nth-child(3) { background: #10b981; }

.browser-body {
    padding: 2.5rem;
    background: #020617; /* Very dark slate */
    color: #f8fafc;
    font-family: monospace;
    font-size: 1rem;
    position: relative;
    overflow: hidden;
}

.browser-body::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(180deg, transparent 80%, #020617 100%);
    pointer-events: none;
}

.code-comment { color: #64748b; }
.code-keyword { color: #c678dd; }
.code-var { color: #e06c75; }
.code-string { color: #98c379; }
.code-function { color: #61afef; }

/* Section Headers */
.section-header {
    text-align: center;
    margin-bottom: 5rem;
}

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

.section-desc {
    color: var(--text-muted);
    font-size: 1.125rem;
    max-width: 600px;
    margin: 0 auto;
}

/* Grids */
.grid-2 {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
}

.grid-3 {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

/* Cards */
.card {
    background: var(--bg-card);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-lg);
    padding: 2.5rem;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.card::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.05), transparent);
    transition: var(--transition);
    z-index: 1;
}

.card:hover::before {
    left: 100%;
    transition: 0.8s ease-in-out;
}

.card:hover {
    background: var(--bg-card-hover);
    box-shadow: var(--shadow-hover);
    transform: translateY(-8px);
    border-color: rgba(99, 102, 241, 0.4);
}

.card-icon {
    width: 4rem;
    height: 4rem;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
    font-size: 1.75rem;
    transition: var(--transition);
    position: relative;
    z-index: 2;
}

.card:hover .card-icon {
    transform: scale(1.1) rotate(5deg);
}

.card-icon.old-way { background: rgba(248, 113, 113, 0.1); color: var(--danger); }
.card-icon.new-way { background: rgba(52, 211, 153, 0.1); color: var(--success); }

.card-icon.primary { background: rgba(129, 140, 248, 0.1); color: var(--primary); }
.card-icon.secondary { background: rgba(56, 189, 248, 0.1); color: var(--secondary); }
.card-icon.accent { background: rgba(244, 114, 182, 0.1); color: var(--accent); }

/* Feature Lists */
.feature-list {
    list-style: none;
    margin-top: 1.5rem;
    position: relative;
    z-index: 2;
}

.feature-list li {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 1rem;
    color: var(--text-body);
}

.feature-list li i {
    width: 1.25rem;
    height: 1.25rem;
}

.old-way li i { color: var(--danger); }
.new-way li i { color: var(--success); }

/* Workflow Comparison */
.workflow-comparison {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 2rem;
    background: var(--bg-card);
    padding: 4rem 3rem;
    border-radius: var(--radius-xl);
    border: 1px solid var(--border-light);
    box-shadow: var(--shadow-lg);
    position: relative;
    overflow: hidden;
}

.workflow-comparison::before {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 50%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(52, 211, 153, 0.05));
    pointer-events: none;
}

.workflow-track {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    position: relative;
    z-index: 2;
}

.track-title {
    margin-bottom: 2.5rem;
    font-size: 1.5rem;
}

.text-danger { color: var(--danger); }
.text-success { color: var(--success); }

.flow-steps {
    display: flex;
    flex-direction: column;
    align-items: center;
    width: 100%;
}

.step-box {
    width: 100%;
    padding: 1.25rem 1rem;
    background: var(--bg-alt);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-md);
    text-align: center;
    font-weight: 500;
    transition: var(--transition);
}

.step-box:hover {
    transform: scale(1.05);
    border-color: var(--text-muted);
    box-shadow: var(--shadow-md);
    background: var(--bg-card-hover);
}

.step-box.highlight {
    background: rgba(129, 140, 248, 0.1);
    border-color: var(--primary);
    color: var(--primary-light);
}

.step-box.highlight:hover {
    border-color: var(--primary-light);
    box-shadow: 0 0 15px rgba(129, 140, 248, 0.3);
}

.flow-arrow {
    margin: 1.25rem 0;
    color: var(--border-med);
    transition: var(--transition);
}

.workflow-track:hover .flow-arrow {
    transform: translateY(5px);
    color: var(--text-muted);
}

.highlight-arrow {
    color: var(--primary);
}

.workflow-track:hover .highlight-arrow {
    transform: translateY(5px);
    color: var(--primary-light);
}

.success-icon {
    color: var(--success);
    width: 2.5rem;
    height: 2.5rem;
    margin-top: 1.5rem;
    animation: bounce 2s infinite;
}

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

.vs-divider {
    font-size: 1.75rem;
    font-weight: 800;
    color: var(--border-light);
    padding: 1.5rem;
    background: var(--bg-alt);
    border-radius: 50%;
    box-shadow: inset 0 2px 4px rgba(0,0,0,0.5);
    z-index: 2;
}

/* Options Cards */
.option-card {
    position: relative;
}

.card-badge {
    position: absolute;
    top: 1rem;
    right: 1rem;
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-muted);
    background: var(--bg-alt);
    padding: 0.25rem 0.5rem;
    border-radius: var(--radius-md);
    z-index: 2;
}

.card-text {
    color: var(--text-muted);
    margin-top: 0.5rem;
    margin-bottom: 1.5rem;
    position: relative;
    z-index: 2;
}

.code-snippet {
    background: #020617; /* Very dark slate */
    color: #e2e8f0;
    padding: 1.25rem;
    border-radius: var(--radius-md);
    font-family: monospace;
    font-size: 0.875rem;
    margin-bottom: 1.5rem;
    border-left: 4px solid var(--primary);
    position: relative;
    z-index: 2;
    transition: var(--transition);
}

.option-card:hover .code-snippet {
    border-left-color: var(--secondary);
    box-shadow: inset 0 0 10px rgba(0,0,0,0.5);
}

.mini-list {
    list-style: none;
    position: relative;
    z-index: 2;
}

.mini-list li {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 0.75rem;
    font-size: 0.95rem;
    color: var(--text-body);
}

.mini-list li i {
    width: 1.25rem;
    height: 1.25rem;
    color: var(--primary);
}

/* Trend Alert */
.trend-alert {
    display: flex;
    align-items: flex-start;
    gap: 1.5rem;
    margin-top: 4rem;
    background: linear-gradient(to right, rgba(99, 102, 241, 0.1), rgba(14, 165, 233, 0.1));
    border: 1px solid rgba(99, 102, 241, 0.3);
    padding: 2.5rem;
    border-radius: var(--radius-lg);
    transition: var(--transition);
}

.trend-alert:hover {
    box-shadow: 0 10px 30px -10px rgba(99, 102, 241, 0.3);
    border-color: rgba(99, 102, 241, 0.5);
    transform: translateY(-5px);
}

@keyframes pulse-glow {
    0% { box-shadow: 0 0 0 0 rgba(129, 140, 248, 0.4); }
    70% { box-shadow: 0 0 0 15px rgba(129, 140, 248, 0); }
    100% { box-shadow: 0 0 0 0 rgba(129, 140, 248, 0); }
}

.trend-icon {
    width: 2.5rem;
    height: 2.5rem;
    color: var(--primary-light);
    flex-shrink: 0;
    border-radius: 50%;
    animation: pulse-glow 2s infinite;
}

.trend-content h4 {
    margin-bottom: 0.75rem;
    color: var(--primary-light);
    font-size: 1.25rem;
}

/* Stepper */
.stepper {
    display: flex;
    flex-direction: column;
    gap: 2.5rem;
    max-width: 800px;
    margin: 0 auto;
    position: relative;
}

.stepper::before {
    content: '';
    position: absolute;
    left: 1.5rem;
    top: 0;
    height: 100%;
    width: 2px;
    background: var(--border-light);
    z-index: 0;
}

.step {
    display: flex;
    gap: 2rem;
    position: relative;
    z-index: 1;
}

.step-number {
    width: 3rem;
    height: 3rem;
    border-radius: 50%;
    background: var(--bg-main);
    border: 2px solid var(--primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    color: var(--primary);
    flex-shrink: 0;
    box-shadow: 0 0 0 6px var(--bg-main);
    transition: var(--transition);
}

.step:hover .step-number {
    transform: scale(1.1);
    background: var(--primary);
    color: white;
}

.step-number.success {
    background: var(--success);
    border-color: var(--success);
    color: var(--bg-main);
}

.step:hover .step-number.success {
    box-shadow: 0 0 0 6px var(--bg-main), 0 0 15px var(--success);
}

.step-content {
    background: var(--bg-card);
    border: 1px solid var(--border-light);
    padding: 2rem;
    border-radius: var(--radius-lg);
    flex: 1;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

.step:hover .step-content {
    transform: translateX(10px);
    border-color: var(--primary-light);
    background: var(--bg-card-hover);
}

.step-content h4 {
    margin-bottom: 0.75rem;
    color: var(--text-main);
}

.prompt-text {
    font-style: italic;
    color: var(--primary-light);
    font-weight: 500;
    background: rgba(129, 140, 248, 0.1);
    padding: 0.5rem 1rem;
    border-radius: var(--radius-md);
    display: inline-block;
}

.chip-container {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    margin-top: 1.25rem;
}

.chip {
    padding: 0.35rem 1rem;
    background: var(--bg-alt);
    border: 1px solid var(--border-med);
    border-radius: 2rem;
    font-size: 0.875rem;
    font-weight: 500;
    transition: var(--transition);
    color: var(--text-body);
}

.step:hover .chip {
    border-color: var(--primary);
    color: var(--primary-light);
}

.chip:hover {
    background: var(--primary);
    color: white !important;
    transform: translateY(-2px);
}

/* Footer */
.footer {
    background: #020617; /* Very dark slate */
    color: var(--text-muted);
    padding: 5rem 0 3rem;
    text-align: center;
    border-top: 1px solid var(--border-light);
}

.footer-brand {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 800;
    font-size: 1.75rem;
    color: white;
    margin-bottom: 1.5rem;
}

.footer-brand i {
    color: var(--primary);
}

.copyright {
    margin-top: 3rem;
    font-size: 0.875rem;
    color: var(--border-med);
}

/* Scroll Animations */
.animate-on-scroll {
    opacity: 0;
    visibility: hidden;
    will-change: transform, opacity;
}

.fade-up {
    transform: translateY(40px);
    transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1), 
                transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

.fade-left {
    transform: translateX(-40px);
    transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1), 
                transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

.fade-right {
    transform: translateX(40px);
    transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1), 
                transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

.zoom-in {
    transform: scale(0.9);
    transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1), 
                transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

.fade-up.visible, 
.fade-left.visible, 
.fade-right.visible, 
.zoom-in.visible {
    opacity: 1;
    visibility: visible;
    transform: translate(0) scale(1);
}

.delay-1 { transition-delay: 0.1s; }
.delay-2 { transition-delay: 0.2s; }
.delay-3 { transition-delay: 0.3s; }
.delay-4 { transition-delay: 0.4s; }
.delay-5 { transition-delay: 0.5s; }

/* Responsive */
@media (max-width: 992px) {
    .grid-3 {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 768px) {
    .hero-title {
        font-size: 3rem;
    }
    
    .nav-links {
        display: none;
    }
    
    .grid-2, .grid-3 {
        grid-template-columns: 1fr;
    }
    
    .workflow-comparison {
        flex-direction: column;
        padding: 3rem 1.5rem;
    }
    
    .workflow-comparison::before {
        width: 100%;
        height: 50%;
        top: auto;
        bottom: 0;
        background: linear-gradient(0deg, rgba(52, 211, 153, 0.05), transparent);
    }
    
    .vs-divider {
        margin: 2rem 0;
    }
    
    .stepper::before {
        left: 1rem;
    }
    
    .step-number {
        width: 2rem;
        height: 2rem;
        font-size: 0.875rem;
    }
    
    .step {
        gap: 1rem;
    }
}