:root {
    /* Krybe Brand Colors */
    --primary: #000000;
    --primary-dark: #1a1a1a;
    --accent: #3B82F6;
    --surface: #FFFFFF;
    --surface-dark: #F9FAFB;
    --text: #000000;
    --text-light: #6B7280;
    --border: #D1D5DB;
    --input-bg: #F3F4F6;
    --ring: #3B82F6;
}

/* Dark mode */
@media (prefers-color-scheme: dark) {
    :root {
        --surface: #1F2937;
        --surface-dark: #111827;
        --text: #F9FAFB;
        --text-light: #D1D5DB;
        --border: #374151;
        --input-bg: #374151;
    }
}

/* Landing Page Styles */
.landing-page {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem;
}

.hero {
    text-align: center;
    padding: 6rem 2rem;
    background: var(--surface);
}

.hero h1 {
    font-size: 3.5rem;
    color: var(--text);
    margin-bottom: 1.5rem;
    font-weight: 700;
    line-height: 1.2;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--text-light);
    margin-bottom: 2.5rem;
    line-height: 1.6;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.cta-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

.button {
    padding: 0.75rem 1.5rem;
    border-radius: 0.5rem;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.2s;
    text-align: center;
}

.button.primary {
    background: var(--primary);
    color: white;
    border: none;
}

.button.secondary {
    background: var(--surface);
    color: var(--text);
    border: 1px solid var(--border);
}

.button.primary:hover {
    background: var(--primary-dark);
}

.button.secondary:hover {
    background: var(--surface-dark);
}

.features {
    padding: 4rem 0;
}

.api-overview {
    padding: 4rem 0;
}

.code-examples {
    margin-top: 2rem;
    border-radius: 0.75rem;
    overflow: hidden;
    border: 1px solid var(--border);
    background: var(--surface);
}

.tabs {
    display: flex;
    background: var(--surface);
    padding: 0.5rem;
    border-bottom: 1px solid var(--border);
}

.tab-button {
    padding: 0.5rem 1rem;
    border: none;
    background: none;
    color: var(--text-light);
    cursor: pointer;
    font-weight: 500;
    transition: all 0.2s;
}

.tab-button.active {
    background: var(--primary);
    color: white;
    border-radius: 0.375rem;
    font-weight: 600;
}

/* Modern smooth scrolling */
html {
    scroll-behavior: smooth;
}

/* Glass morphism */
.glass {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 1rem;
}

/* Animations */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

.animate-in {
    animation: fadeIn 0.6s ease-out;
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.6;
    color: var(--text);
    background-color: var(--surface);
    background-image: url('/static/img/wave-bg.svg');
    background-position: bottom;
    background-repeat: no-repeat;
    background-size: cover;
    min-height: 100vh;
}

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

.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    padding: 1rem 0;
    z-index: 50;
    transition: background-color 0.3s ease;
}

.nav h1 {
    background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    font-size: 2.5rem;
    font-weight: 800;
    margin-bottom: 0.5rem;
}

.nav p {
    color: var(--text-light);
    font-size: 1.25rem;
}

section {
    margin-bottom: 3rem;
}

h1 {
    font-size: 2rem;
    font-weight: 700;
}

h2 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--primary-color);
}

.model-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin: 2rem 0;
}

.model-card {
    padding: 2rem;
    border-radius: 0.75rem;
    background: var(--surface);
    border: 1px solid var(--border);
    transition: all 0.2s;
}

.model-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
}

.model-card h3 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--text);
}

.model-card ul {
    list-style: none;
    padding: 0;
    margin: 1rem 0;
}

.model-card li {
    margin: 0.75rem 0;
    padding-left: 1.5rem;
    position: relative;
    color: var(--text-light);
    font-size: 0.875rem;
}

.model-card li::before {
    content: "✓";
    position: absolute;
    left: 0;
    color: var(--primary);
    font-weight: bold;
}

.code-block {
    background: var(--surface-dark);
    border-radius: 0.5rem;
    padding: 1.5rem;
    margin: 1rem 0;
    overflow-x: auto;
    position: relative;
}

.code-tabs {
    display: flex;
    gap: 0.5rem;
    padding: 0.5rem;
    background: var(--surface-dark);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.tab {
    background: none;
    border: none;
    padding: 0.75rem 1.5rem;
    color: var(--text-light);
    cursor: pointer;
    font-weight: 500;
    transition: all 0.3s ease;
    border-radius: 0.5rem;
}

.tab:hover {
    color: var(--text);
    background: rgba(255, 255, 255, 0.05);
}

.tab.active {
    color: var(--text);
    background: rgba(255, 255, 255, 0.1);
}

.code-content {
    padding: 1.5rem;
    background: var(--surface-dark);
    border-radius: 0 0 0.5rem 0.5rem;
}

.code-block {
    display: none;
    margin: 0;
    font-family: 'Fira Code', monospace;
    color: var(--text);
}

.code-block.active {
    display: block;
    animation: fadeIn 0.3s ease-out;
}

.api-tester {
    margin-top: 3rem;
    padding: 2rem;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    color: var(--text);
    font-weight: 500;
}

.form-group input,
.form-group select {
    width: 100%;
    padding: 0.75rem 1rem;
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 0.5rem;
    background: var(--surface-dark);
    color: var(--text);
    transition: border-color 0.3s ease;
}

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

button[type="submit"] {
    background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
    color: white;
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: 0.5rem;
    font-weight: 500;
    cursor: pointer;
    transition: transform 0.3s ease;
}

button[type="submit"]:hover {
    transform: translateY(-2px);
}

@media (max-width: 768px) {
    .container {
        padding: 0 1rem;
    }
    
    .nav h1 {
        font-size: 2rem;
    }
    
    .model-grid {
        grid-template-columns: 1fr;
    }
    
    .code-tabs {
        flex-wrap: wrap;
    }
}

pre {
    margin: 0;
    padding: 1rem;
    overflow-x: auto;
}

code {
    font-family: 'Fira Code', 'Courier New', Courier, monospace;
}

.api-tester {
    padding: 2rem;
    margin: 2rem 0;
}

.playground-form {
    display: grid;
    gap: 1.5rem;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.75rem;
    font-weight: 600;
    color: var(--text);
}

.glass-input {
    width: 100%;
    padding: 1rem;
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 0.5rem;
    color: var(--text);
    font-size: 1rem;
    transition: all 0.3s ease;
}

.glass-input:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 2px rgba(37, 99, 235, 0.2);
}

.file-upload {
    padding: 2rem;
    border: 2px dashed rgba(255, 255, 255, 0.2);
    border-radius: 0.5rem;
    text-align: center;
    cursor: pointer;
    transition: all 0.3s ease;
}

.file-upload:hover {
    border-color: var(--primary);
    background: rgba(255, 255, 255, 0.05);
}

.file-upload input[type="file"] {
    display: none;
}

.file-hint {
    color: var(--text-light);
    margin: 0;
}

.submit-button {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 1rem 2rem;
    background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
    color: white;
    border: none;
    border-radius: 0.5rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
}

.submit-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(37, 99, 235, 0.2);
}

.button-text {
    font-size: 1rem;
}

.button-icon {
    transition: transform 0.3s ease;
}

.submit-button:hover .button-icon {
    transform: translateX(4px);
}

.response-code {
    margin-top: 1.5rem;
    padding: 1.5rem;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 0.5rem;
    overflow-x: auto;
}

/* File upload states */
.drag-over {
    border-color: var(--primary);
    background: rgba(255, 255, 255, 0.05);
    transform: scale(1.02);
}

.has-file {
    border-style: solid;
    border-color: var(--accent);
}

.error {
    border-color: #ef4444;
    animation: shake 0.82s cubic-bezier(.36,.07,.19,.97) both;
}

/* Loading states */
.loading {
    position: relative;
    pointer-events: none;
    opacity: 0.8;
}

.loading::after {
    content: "";
    position: absolute;
    top: 50%;
    left: 50%;
    width: 1.5rem;
    height: 1.5rem;
    margin: -0.75rem 0 0 -0.75rem;
    border: 2px solid rgba(255, 255, 255, 0.2);
    border-top-color: white;
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

/* Animations */
@keyframes shake {
    10%, 90% { transform: translate3d(-1px, 0, 0); }
    20%, 80% { transform: translate3d(2px, 0, 0); }
    30%, 50%, 70% { transform: translate3d(-4px, 0, 0); }
    40%, 60% { transform: translate3d(4px, 0, 0); }
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

.fade-in {
    animation: fadeIn 0.3s ease-out forwards;
}

@media (prefers-color-scheme: dark) {
    .glass-input {
        background: rgba(0, 0, 0, 0.2);
    }
    
    .file-upload {
        border-color: rgba(255, 255, 255, 0.1);
    }
    
    .response-code {
        background: rgba(0, 0, 0, 0.2);
    }
}

.hidden {
    display: none;
}

@media (max-width: 768px) {
    .model-cards {
        grid-template-columns: 1fr;
    }
}