/* ===== Reset & Base ===== */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

:root {
    --purple-deep: #381576;
    --purple-accent: #a200ff;
    --purple-light: #f3eaff;
    --purple-dark: #2a0f5c;
    --gray-50: #fafafa;
    --gray-100: #f5f5f5;
    --gray-200: #e5e7eb;
    --gray-400: #9ca3af;
    --gray-500: #6b7280;
    --gray-600: #4b5563;
    --gray-700: #374151;
    --gray-800: #1f2937;
    --gray-900: #111827;
    --white: #ffffff;
    --radius: 12px;
    --radius-lg: 16px;
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.08);
    --shadow-md: 0 4px 12px rgba(0,0,0,0.1);
    --shadow-lg: 0 8px 30px rgba(0,0,0,0.12);
    --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Poppins', 'Segoe UI', system-ui, sans-serif;
    color: var(--gray-700);
    background: var(--white);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

/* ===== Layout ===== */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

.container--narrow {
    max-width: 900px;
}

/* ===== Navbar ===== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    background: rgba(255,255,255,0.92);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--gray-200);
    padding: 0 24px;
    transition: box-shadow var(--transition);
}

.navbar-inner {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 64px;
}

.navbar-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
}

.navbar-logo img {
    height: 36px;
    width: auto;
}

.navbar-logo span {
    font-weight: 700;
    font-size: 0.85rem;
    color: var(--purple-deep);
    letter-spacing: -0.02em;
    background: linear-gradient(135deg, var(--purple-deep), var(--purple-accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.navbar-links {
    display: flex;
    align-items: center;
    gap: 32px;
    list-style: none;
}

.navbar-links a {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--gray-600);
    text-decoration: none;
    transition: color var(--transition);
}

.navbar-links a:hover {
    color: var(--purple-deep);
}

.navbar-links .btn-nav {
    background: var(--purple-deep);
    color: var(--white);
    padding: 8px 20px;
    border-radius: 8px;
    font-weight: 600;
    transition: background var(--transition), transform var(--transition);
}

.navbar-links .btn-nav:hover {
    background: var(--purple-accent);
    transform: translateY(-1px);
}

/* ===== Hero ===== */
.hero {
    padding: 140px 24px 80px;
    text-align: center;
    background: linear-gradient(165deg, var(--white) 0%, var(--purple-light) 50%, var(--white) 100%);
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: -200px;
    right: -200px;
    width: 600px;
    height: 600px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(162,0,255,0.06) 0%, transparent 70%);
    pointer-events: none;
}

.hero::after {
    content: '';
    position: absolute;
    bottom: -150px;
    left: -150px;
    width: 500px;
    height: 500px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(56,21,118,0.05) 0%, transparent 70%);
    pointer-events: none;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: var(--white);
    border: 1px solid var(--gray-200);
    padding: 6px 16px;
    border-radius: 100px;
    font-size: 0.8rem;
    font-weight: 500;
    color: var(--purple-deep);
    margin-bottom: 24px;
    box-shadow: var(--shadow-sm);
}

.hero-badge .dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: #22c55e;
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.4; }
}

.hero h1 {
    font-size: clamp(2.25rem, 5vw, 3.5rem);
    font-weight: 800;
    color: var(--gray-900);
    line-height: 1.15;
    margin-bottom: 20px;
    letter-spacing: -0.03em;
}

.hero h1 .gradient-text {
    background: linear-gradient(135deg, var(--purple-deep), var(--purple-accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.15rem;
    color: var(--gray-500);
    max-width: 640px;
    margin: 0 auto 36px;
    line-height: 1.7;
}

.hero-actions {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 28px;
    border-radius: 10px;
    font-family: inherit;
    font-size: 0.95rem;
    font-weight: 600;
    text-decoration: none;
    cursor: pointer;
    border: none;
    transition: all var(--transition);
}

.btn-primary {
    background: var(--purple-deep);
    color: var(--white);
    box-shadow: 0 4px 14px rgba(56,21,118,0.3);
}

.btn-primary:hover {
    background: var(--purple-accent);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(162,0,255,0.35);
}

.btn-secondary {
    background: var(--white);
    color: var(--gray-700);
    border: 1.5px solid var(--gray-200);
}

.btn-secondary:hover {
    border-color: var(--purple-deep);
    color: var(--purple-deep);
    transform: translateY(-2px);
}

.hero-stats {
    display: flex;
    justify-content: center;
    gap: 48px;
    margin-top: 60px;
    flex-wrap: wrap;
}

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

.hero-stat .number {
    font-size: 2rem;
    font-weight: 800;
    color: var(--purple-deep);
    line-height: 1;
}

.hero-stat .label {
    font-size: 0.8rem;
    color: var(--gray-500);
    margin-top: 4px;
    font-weight: 500;
}

/* ===== Section Shared ===== */
.section {
    padding: 80px 24px;
}

.section--gray {
    background: var(--gray-50);
}

.section--dark {
    background: var(--gray-900);
    color: var(--white);
}

.section--purple {
    background: linear-gradient(135deg, var(--purple-deep) 0%, var(--purple-dark) 100%);
    color: var(--white);
}

.section-header {
    text-align: center;
    max-width: 640px;
    margin: 0 auto 48px;
}

.section-header .overline {
    display: inline-block;
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--purple-accent);
    margin-bottom: 12px;
}

.section--dark .overline,
.section--purple .overline {
    color: rgba(162,0,255,0.7);
}

.section-header h2 {
    font-size: clamp(1.75rem, 3vw, 2.25rem);
    font-weight: 700;
    color: var(--gray-900);
    line-height: 1.25;
    margin-bottom: 12px;
    letter-spacing: -0.02em;
}

.section--dark .section-header h2,
.section--purple .section-header h2 {
    color: var(--white);
}

.section-header p {
    font-size: 1.05rem;
    color: var(--gray-500);
    line-height: 1.6;
}

.section--dark .section-header p,
.section--purple .section-header p {
    color: rgba(255,255,255,0.7);
}

/* ===== Features Grid ===== */
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 24px;
}

.feature-card {
    background: var(--white);
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-lg);
    padding: 32px 28px;
    transition: all var(--transition);
}

.feature-card:hover {
    border-color: transparent;
    box-shadow: var(--shadow-lg);
    transform: translateY(-4px);
}

.feature-icon {
    width: 48px;
    height: 48px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    margin-bottom: 20px;
    background: var(--purple-light);
}

.feature-card h3 {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--gray-800);
    margin-bottom: 8px;
}

.feature-card p {
    font-size: 0.9rem;
    color: var(--gray-500);
    line-height: 1.6;
}

/* ===== API Categories ===== */
.categories-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 16px;
}

.category-item {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 20px;
    background: var(--white);
    border: 1px solid var(--gray-200);
    border-radius: var(--radius);
    transition: all var(--transition);
}

.category-item:hover {
    border-color: var(--purple-accent);
    box-shadow: var(--shadow-md);
}

.category-icon {
    flex-shrink: 0;
    width: 40px;
    height: 40px;
    border-radius: 10px;
    background: var(--purple-light);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.15rem;
}

.category-item h4 {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--gray-800);
    margin-bottom: 2px;
}

.category-item span {
    font-size: 0.78rem;
    color: var(--gray-400);
}

/* ===== Code Block ===== */
.code-section {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
    align-items: center;
}

.code-info h3 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: 16px;
}

.code-info p {
    color: var(--gray-500);
    margin-bottom: 24px;
    line-height: 1.7;
}

.code-steps {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.code-steps li {
    display: flex;
    align-items: flex-start;
    gap: 12px;
}

.step-num {
    flex-shrink: 0;
    width: 28px;
    height: 28px;
    border-radius: 50%;
    background: var(--purple-light);
    color: var(--purple-deep);
    font-size: 0.8rem;
    font-weight: 700;
    display: flex;
    align-items: center;
    justify-content: center;
}

.step-text {
    font-size: 0.9rem;
    color: var(--gray-600);
    padding-top: 3px;
}

.step-text strong {
    color: var(--gray-800);
}

.code-block {
    background: var(--gray-900);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}

.code-block-header {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 14px 20px;
    background: rgba(255,255,255,0.05);
    border-bottom: 1px solid rgba(255,255,255,0.08);
}

.code-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
}

.code-dot--red { background: #ff5f57; }
.code-dot--yellow { background: #febc2e; }
.code-dot--green { background: #28c840; }

.code-block-title {
    font-size: 0.75rem;
    color: rgba(255,255,255,0.4);
    margin-left: 8px;
    font-weight: 500;
}

.code-block pre {
    padding: 24px;
    overflow-x: auto;
    font-size: 0.82rem;
    line-height: 1.8;
    color: #e2e8f0;
    font-family: 'SF Mono', 'Cascadia Code', 'Fira Code', monospace;
}

.code-block .kw { color: #c792ea; }
.code-block .str { color: #c3e88d; }
.code-block .cm { color: #546e7a; }
.code-block .fn { color: #82aaff; }
.code-block .num { color: #f78c6c; }
.code-block .op { color: #89ddff; }

/* ===== Auth Section ===== */
.auth-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 24px;
}

.auth-card {
    background: rgba(255,255,255,0.06);
    border: 1px solid rgba(255,255,255,0.1);
    border-radius: var(--radius-lg);
    padding: 28px 24px;
    transition: all var(--transition);
}

.auth-card:hover {
    background: rgba(255,255,255,0.1);
    border-color: rgba(162,0,255,0.3);
}

.auth-card h4 {
    font-size: 1rem;
    font-weight: 600;
    color: var(--white);
    margin-bottom: 8px;
}

.auth-card p {
    font-size: 0.85rem;
    color: rgba(255,255,255,0.6);
    line-height: 1.6;
}

.auth-card .tag {
    display: inline-block;
    background: rgba(162,0,255,0.2);
    color: rgba(162,0,255,0.9);
    font-size: 0.7rem;
    font-weight: 600;
    padding: 3px 10px;
    border-radius: 100px;
    margin-bottom: 12px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

/* ===== Integrations ===== */
.integrations-row {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 16px;
    margin-top: 12px;
}

.integration-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 20px;
    background: var(--white);
    border: 1px solid var(--gray-200);
    border-radius: 100px;
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--gray-700);
    transition: all var(--transition);
}

.integration-badge:hover {
    border-color: var(--purple-accent);
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}

/* ===== CTA Section ===== */
.cta-box {
    text-align: center;
    padding: 64px 32px;
    border-radius: var(--radius-lg);
    background: linear-gradient(135deg, var(--purple-deep) 0%, #4c1d95 50%, var(--purple-accent) 100%);
    position: relative;
    overflow: hidden;
}

.cta-box::before {
    content: '';
    position: absolute;
    top: -60px;
    right: -60px;
    width: 300px;
    height: 300px;
    border-radius: 50%;
    background: rgba(255,255,255,0.06);
    pointer-events: none;
}

.cta-box h2 {
    font-size: 2rem;
    font-weight: 700;
    color: var(--white);
    margin-bottom: 12px;
}

.cta-box p {
    color: rgba(255,255,255,0.75);
    font-size: 1.05rem;
    margin-bottom: 32px;
    max-width: 500px;
    margin-left: auto;
    margin-right: auto;
}

.btn-white {
    background: var(--white);
    color: var(--purple-deep);
    padding: 14px 32px;
    border-radius: 10px;
    font-weight: 700;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    transition: all var(--transition);
    box-shadow: 0 4px 14px rgba(0,0,0,0.15);
}

.btn-white:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0,0,0,0.2);
}

/* ===== OData Section ===== */
.odata-tags {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 10px;
    margin-top: 8px;
}

.odata-tag {
    display: inline-block;
    padding: 6px 16px;
    border-radius: 8px;
    font-size: 0.78rem;
    font-weight: 500;
    background: rgba(255,255,255,0.08);
    color: rgba(255,255,255,0.7);
    border: 1px solid rgba(255,255,255,0.1);
    transition: all var(--transition);
}

.odata-tag:hover {
    background: rgba(255,255,255,0.15);
    color: var(--white);
}

/* ===== Footer ===== */
.footer {
    padding: 48px 24px 32px;
    border-top: 1px solid var(--gray-200);
}

.footer-inner {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 16px;
}

.footer-brand {
    display: flex;
    align-items: center;
    gap: 10px;
}

.footer-brand img {
    height: 28px;
}

.footer-brand span {
    font-size: 0.8rem;
    color: var(--gray-400);
}

.footer-links {
    display: flex;
    gap: 24px;
    list-style: none;
}

.footer-links a {
    font-size: 0.85rem;
    color: var(--gray-500);
    text-decoration: none;
    transition: color var(--transition);
}

.footer-links a:hover {
    color: var(--purple-deep);
}

.footer-copy {
    width: 100%;
    text-align: center;
    font-size: 0.78rem;
    color: var(--gray-400);
    margin-top: 24px;
    padding-top: 24px;
    border-top: 1px solid var(--gray-200);
}

/* ===== Endpoint Table ===== */
.endpoint-table-wrap {
    overflow-x: auto;
    border-radius: var(--radius-lg);
    border: 1px solid var(--gray-200);
    background: var(--white);
}

.endpoint-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.85rem;
}

.endpoint-table thead {
    background: var(--gray-50);
}

.endpoint-table th {
    text-align: left;
    padding: 14px 20px;
    font-weight: 600;
    color: var(--gray-600);
    font-size: 0.78rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    border-bottom: 1px solid var(--gray-200);
}

.endpoint-table td {
    padding: 12px 20px;
    border-bottom: 1px solid var(--gray-100);
    color: var(--gray-600);
}

.endpoint-table tr:last-child td {
    border-bottom: none;
}

.endpoint-table tr:hover td {
    background: var(--gray-50);
}

.method-badge {
    display: inline-block;
    padding: 2px 10px;
    border-radius: 6px;
    font-size: 0.7rem;
    font-weight: 700;
    letter-spacing: 0.03em;
    font-family: 'SF Mono', 'Cascadia Code', monospace;
}

.method-badge--post {
    background: #fef3c7;
    color: #92400e;
}

.method-badge--get {
    background: #d1fae5;
    color: #065f46;
}

.method-badge--put {
    background: #dbeafe;
    color: #1e40af;
}

.method-badge--odata {
    background: #ede9fe;
    color: #5b21b6;
}

.endpoint-path {
    font-family: 'SF Mono', 'Cascadia Code', monospace;
    font-size: 0.8rem;
    color: var(--gray-700);
}

/* ===== Rate Limit ===== */
.rate-limit-banner {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    background: #fffbeb;
    border: 1px solid #fde68a;
    border-radius: var(--radius);
    padding: 14px 24px;
    margin-top: 32px;
    font-size: 0.85rem;
    color: #92400e;
}

/* ===== Responsive ===== */
@media (max-width: 768px) {
    .navbar-links {
        gap: 16px;
    }

    .navbar-links a:not(.btn-nav) {
        display: none;
    }

    .hero {
        padding: 120px 20px 60px;
    }

    .hero-stats {
        gap: 24px;
    }

    .code-section {
        grid-template-columns: 1fr;
        gap: 32px;
    }

    .footer-inner {
        flex-direction: column;
        text-align: center;
    }

    .footer-links {
        justify-content: center;
    }

    .section {
        padding: 60px 20px;
    }
}

@media (max-width: 480px) {
    .hero h1 {
        font-size: 1.75rem;
    }

    .hero-actions {
        flex-direction: column;
        align-items: stretch;
    }

    .btn {
        justify-content: center;
    }

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