/* ==============================================
   StreamFlix — AWS Demo App
   Design System & Complete Styles
   ============================================== */

/* ── CSS Variables (Design Tokens) ── */
:root {
    /* Colors */
    --color-primary: #e50914;
    --color-primary-hover: #ff1a26;
    --color-primary-glow: rgba(229, 9, 20, 0.4);

    --color-bg-base: #0a0a0f;
    --color-bg-section: #0f0f18;
    --color-bg-card: rgba(255, 255, 255, 0.04);
    --color-bg-card-hover: rgba(255, 255, 255, 0.08);

    --color-text: #e8e8ed;
    --color-text-dim: #8b8b9e;
    --color-text-bright: #ffffff;

    --color-border: rgba(255, 255, 255, 0.08);
    --color-border-hover: rgba(255, 255, 255, 0.2);

    --color-success: #22c55e;
    --color-danger: #ef4444;
    --color-warning: #f59e0b;
    --color-info: #3b82f6;

    --gradient-hero: linear-gradient(135deg, #e50914 0%, #ff6b35 50%, #e50914 100%);
    --gradient-dark: linear-gradient(180deg, var(--color-bg-base) 0%, var(--color-bg-section) 100%);

    /* Typography */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-mono: 'SF Mono', 'Fira Code', 'Consolas', monospace;

    /* Spacing */
    --section-padding: 6rem 0;
    --container-max: 1200px;
    --border-radius: 12px;
    --border-radius-lg: 20px;

    /* Transitions */
    --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-smooth: 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-bounce: 0.5s cubic-bezier(0.34, 1.56, 0.64, 1);
}

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

html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

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

code {
    font-family: var(--font-mono);
    background: rgba(229, 9, 20, 0.15);
    color: var(--color-primary-hover);
    padding: 0.15em 0.4em;
    border-radius: 4px;
    font-size: 0.85em;
}

::selection {
    background: var(--color-primary);
    color: white;
}

/* ── Particle Canvas ── */
#particleCanvas {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
    pointer-events: none;
}

/* ── Navigation ── */
#navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    padding: 1rem 0;
    transition: var(--transition-smooth);
    background: transparent;
}

#navbar.scrolled {
    background: rgba(10, 10, 15, 0.92);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--color-border);
    padding: 0.6rem 0;
}

.nav-inner {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 2rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1.6rem;
    font-weight: 800;
    color: var(--color-primary);
    letter-spacing: 1px;
    text-transform: uppercase;
    transition: var(--transition-fast);
}

.logo:hover {
    color: var(--color-primary-hover);
    transform: scale(1.03);
}

.logo-icon {
    font-size: 1.2rem;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 0.5rem;
}

.nav-link {
    padding: 0.5rem 1rem;
    border-radius: 8px;
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--color-text-dim);
    transition: var(--transition-fast);
}

.nav-link:hover {
    color: var(--color-text-bright);
    background: rgba(255, 255, 255, 0.06);
}

.mobile-menu-btn {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 5px;
}

.mobile-menu-btn span {
    width: 24px;
    height: 2px;
    background: var(--color-text);
    border-radius: 2px;
    transition: var(--transition-fast);
}

/* ── Buttons ── */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: 10px;
    font-family: var(--font-family);
    font-size: 0.95rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition-smooth);
    position: relative;
    overflow: hidden;
}

.btn-icon {
    font-size: 1.1rem;
}

.btn-primary {
    background: var(--color-primary);
    color: white;
    box-shadow: 0 4px 20px var(--color-primary-glow);
}

.btn-primary:hover {
    background: var(--color-primary-hover);
    transform: translateY(-2px);
    box-shadow: 0 8px 30px var(--color-primary-glow);
}

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

.btn-outline:hover {
    background: rgba(255, 255, 255, 0.06);
    border-color: var(--color-text-dim);
    transform: translateY(-2px);
}

.btn-large {
    padding: 1rem 2rem;
    font-size: 1.1rem;
    border-radius: var(--border-radius);
}

.btn-small {
    padding: 0.5rem 1rem;
    font-size: 0.85rem;
}

.btn-danger {
    background: rgba(239, 68, 68, 0.15);
    color: var(--color-danger);
    border: 1px solid rgba(239, 68, 68, 0.3);
}
.btn-danger:hover {
    background: rgba(239, 68, 68, 0.25);
    transform: translateY(-1px);
}

.btn-warning {
    background: rgba(245, 158, 11, 0.15);
    color: var(--color-warning);
    border: 1px solid rgba(245, 158, 11, 0.3);
}
.btn-warning:hover {
    background: rgba(245, 158, 11, 0.25);
    transform: translateY(-1px);
}

.btn-info {
    background: rgba(59, 130, 246, 0.15);
    color: var(--color-info);
    border: 1px solid rgba(59, 130, 246, 0.3);
}
.btn-info:hover {
    background: rgba(59, 130, 246, 0.25);
    transform: translateY(-1px);
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none !important;
}

/* ── Hero Section ── */
.hero {
    position: relative;
    z-index: 1;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 8rem 2rem 4rem;
}

.hero-content {
    max-width: 800px;
}

.hero-badge {
    display: inline-block;
    background: rgba(229, 9, 20, 0.12);
    border: 1px solid rgba(229, 9, 20, 0.3);
    color: var(--color-primary-hover);
    padding: 0.4rem 1.2rem;
    border-radius: 50px;
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 2rem;
    animation: fadeInDown 0.8s ease-out;
}

.hero h1 {
    font-size: clamp(2.5rem, 6vw, 4.5rem);
    font-weight: 900;
    line-height: 1.1;
    margin-bottom: 1.5rem;
    color: var(--color-text-bright);
    animation: fadeInUp 0.8s ease-out 0.2s both;
}

.gradient-text {
    background: var(--gradient-hero);
    background-size: 200% 200%;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: gradientShift 4s ease infinite;
}

.hero-subtitle {
    font-size: 1.15rem;
    color: var(--color-text-dim);
    max-width: 600px;
    margin: 0 auto 2.5rem;
    line-height: 1.8;
    animation: fadeInUp 0.8s ease-out 0.4s both;
}

.hero-subtitle strong {
    color: var(--color-text-bright);
}

.hero-actions {
    display: flex;
    justify-content: center;
    gap: 1rem;
    flex-wrap: wrap;
    margin-bottom: 4rem;
    animation: fadeInUp 0.8s ease-out 0.6s both;
}

.hero-stats {
    display: flex;
    justify-content: center;
    gap: 3rem;
    animation: fadeInUp 0.8s ease-out 0.8s both;
}

.stat {
    text-align: center;
}

.stat-number {
    display: block;
    font-size: 2.2rem;
    font-weight: 800;
    color: var(--color-text-bright);
}

.stat-label {
    display: block;
    font-size: 0.8rem;
    color: var(--color-text-dim);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-top: 0.25rem;
}

/* ── Section Layout ── */
.section {
    position: relative;
    z-index: 1;
    padding: var(--section-padding);
}

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

.section-inner {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 2rem;
}

.section-title {
    font-size: clamp(1.8rem, 4vw, 2.5rem);
    font-weight: 800;
    text-align: center;
    margin-bottom: 0.75rem;
    color: var(--color-text-bright);
}

.section-subtitle {
    text-align: center;
    color: var(--color-text-dim);
    font-size: 1.05rem;
    margin-bottom: 3rem;
}

/* ── Architecture Flow ── */
.architecture-flow {
    display: flex;
    align-items: flex-start;
    justify-content: center;
    gap: 0.5rem;
    flex-wrap: wrap;
    padding: 2rem 0;
}

.arch-step {
    flex: 0 1 180px;
    text-align: center;
    padding: 1.5rem 1rem;
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius);
    transition: var(--transition-smooth);
    opacity: 0;
    transform: translateY(20px);
}

.arch-step.visible {
    opacity: 1;
    transform: translateY(0);
}

.arch-step:hover {
    border-color: var(--color-primary);
    background: var(--color-bg-card-hover);
    transform: translateY(-4px);
    box-shadow: 0 8px 30px rgba(229, 9, 20, 0.1);
}

.arch-icon {
    font-size: 2.2rem;
    margin-bottom: 0.75rem;
}

.arch-step h3 {
    font-size: 0.95rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    color: var(--color-text-bright);
}

.arch-step p {
    font-size: 0.8rem;
    color: var(--color-text-dim);
    line-height: 1.5;
}

.arch-arrow {
    font-size: 1.5rem;
    color: var(--color-primary);
    display: flex;
    align-items: center;
    padding-top: 2rem;
    font-weight: bold;
}

/* ── Services Grid ── */
.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 1.5rem;
}

.service-card {
    position: relative;
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius-lg);
    padding: 2rem;
    transition: var(--transition-smooth);
    cursor: pointer;
    overflow: hidden;
    outline: none;
}

.service-card:hover,
.service-card:focus-visible {
    border-color: var(--color-border-hover);
    background: var(--color-bg-card-hover);
    transform: translateY(-6px);
}

.card-glow {
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, var(--color-primary-glow) 0%, transparent 70%);
    opacity: 0;
    transition: opacity 0.6s ease;
    pointer-events: none;
}

.service-card:hover .card-glow {
    opacity: 0.06;
}

.card-icon {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.service-card h3 {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--color-text-bright);
    margin-bottom: 0.25rem;
}

.card-role {
    font-size: 0.85rem;
    color: var(--color-primary);
    font-weight: 500;
    margin-bottom: 1rem;
}

.card-details {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.card-details li {
    font-size: 0.88rem;
    color: var(--color-text-dim);
    padding-left: 1.2rem;
    position: relative;
}

.card-details li::before {
    content: '▸';
    position: absolute;
    left: 0;
    color: var(--color-primary);
    font-weight: bold;
}

/* ── Terminal / Demo Panel ── */
.demo-panel {
    max-width: 700px;
    margin: 0 auto;
}

.demo-controls {
    text-align: center;
    margin-bottom: 1.5rem;
}

.terminal {
    background: #0d1117;
    border-radius: var(--border-radius);
    border: 1px solid var(--color-border);
    overflow: hidden;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
}

.terminal-header {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1rem;
    background: rgba(255, 255, 255, 0.03);
    border-bottom: 1px solid var(--color-border);
}

.terminal-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
}
.terminal-dot.red { background: #ff5f57; }
.terminal-dot.yellow { background: #febc2e; }
.terminal-dot.green { background: #28c840; }

.terminal-title {
    margin-left: auto;
    font-size: 0.75rem;
    color: var(--color-text-dim);
    font-family: var(--font-mono);
}

.terminal-body {
    padding: 1.25rem;
    font-family: var(--font-mono);
    font-size: 0.88rem;
    line-height: 1.7;
    min-height: 120px;
    max-height: 300px;
    overflow-y: auto;
}

.terminal-line {
    margin-bottom: 0.25rem;
    white-space: pre-wrap;
    word-break: break-all;
}

.terminal-line.dim { color: var(--color-text-dim); }
.terminal-line.success { color: var(--color-success); }
.terminal-line.error { color: var(--color-danger); }
.terminal-line.info { color: var(--color-info); }
.terminal-line.highlight { color: var(--color-primary-hover); }

/* ── WAF Grid ── */
.waf-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 1.5rem;
}

.waf-card {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius);
    padding: 1.5rem;
    transition: var(--transition-smooth);
}

.waf-card:hover {
    border-color: var(--color-border-hover);
}

.waf-card-header {
    margin-bottom: 0.75rem;
}

.waf-badge {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    border-radius: 50px;
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.waf-badge.danger {
    background: rgba(239, 68, 68, 0.15);
    color: var(--color-danger);
}
.waf-badge.warning {
    background: rgba(245, 158, 11, 0.15);
    color: var(--color-warning);
}
.waf-badge.info {
    background: rgba(59, 130, 246, 0.15);
    color: var(--color-info);
}

.waf-card p {
    font-size: 0.85rem;
    color: var(--color-text-dim);
    margin-bottom: 1rem;
}

.waf-result {
    margin-top: 1rem;
    font-family: var(--font-mono);
    font-size: 0.8rem;
    min-height: 1.5rem;
    padding: 0.5rem;
    border-radius: 6px;
    transition: var(--transition-fast);
}

.waf-result.blocked {
    background: rgba(239, 68, 68, 0.1);
    border: 1px solid rgba(239, 68, 68, 0.2);
    color: var(--color-danger);
}
.waf-result.allowed {
    background: rgba(34, 197, 94, 0.1);
    border: 1px solid rgba(34, 197, 94, 0.2);
    color: var(--color-success);
}

.rate-progress {
    margin-top: 0.75rem;
    height: 6px;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 3px;
    overflow: hidden;
}

.rate-bar {
    height: 100%;
    width: 0%;
    background: var(--color-warning);
    border-radius: 3px;
    transition: width 0.1s linear;
}

/* ── Footer ── */
#footer {
    position: relative;
    z-index: 1;
    padding: 3rem 2rem;
    text-align: center;
    border-top: 1px solid var(--color-border);
    background: var(--color-bg-base);
}

.footer-inner {
    max-width: var(--container-max);
    margin: 0 auto;
}

#footer p {
    color: var(--color-text-dim);
    font-size: 0.9rem;
}

#footer strong {
    color: var(--color-primary);
}

.footer-sub {
    font-size: 0.75rem !important;
    margin-top: 0.5rem;
    opacity: 0.5;
}

/* ── Animations ── */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInDown {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes gradientShift {
    0%, 100% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

@keyframes typing {
    from { width: 0; }
    to { width: 100%; }
}

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

/* ── Responsive ── */
@media (max-width: 768px) {
    .nav-links {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        background: rgba(10, 10, 15, 0.97);
        backdrop-filter: blur(20px);
        flex-direction: column;
        padding: 1rem;
        border-bottom: 1px solid var(--color-border);
    }

    .nav-links.open {
        display: flex;
    }

    .mobile-menu-btn {
        display: flex;
    }

    .hero {
        padding: 6rem 1.5rem 3rem;
        min-height: auto;
    }

    .hero h1 {
        font-size: 2.2rem;
    }

    .hero-stats {
        gap: 1.5rem;
    }

    .stat-number {
        font-size: 1.6rem;
    }

    .architecture-flow {
        flex-direction: column;
        align-items: center;
    }

    .arch-arrow {
        transform: rotate(90deg);
        padding: 0;
    }

    .arch-step {
        flex: 0 1 100%;
        max-width: 300px;
    }

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

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

    .section {
        padding: 4rem 0;
    }
}

/* ── Route 53 Deep Dive ── */
.subsection-title {
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--color-text-bright);
    margin-bottom: 1.5rem;
    margin-top: 3rem;
    padding-bottom: 0.5rem;
    border-bottom: 1px solid var(--color-border);
}

.r53-mapping-demo,
.r53-other-records,
.r53-routing-policies,
.r53-simulator {
    margin-bottom: 2rem;
}

/* Mapping Cards (A, AAAA, CNAME, ALIAS) */
.mapping-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
}

.mapping-card {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius);
    padding: 1.5rem;
    transition: var(--transition-smooth);
}

.mapping-card:hover {
    border-color: var(--color-border-hover);
    transform: translateY(-4px);
}

.mapping-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.mapping-type {
    display: inline-block;
    padding: 0.3rem 0.75rem;
    border-radius: 50px;
    font-size: 0.8rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.mapping-type.a-record { background: rgba(59, 130, 246, 0.2); color: var(--color-info); }
.mapping-type.aaaa-record { background: rgba(139, 92, 246, 0.2); color: #a78bfa; }
.mapping-type.cname-record { background: rgba(245, 158, 11, 0.2); color: var(--color-warning); }
.mapping-type.alias-record { background: rgba(34, 197, 94, 0.2); color: var(--color-success); }

.mapping-direction {
    font-size: 0.75rem;
    color: var(--color-text-dim);
    font-weight: 500;
}

.mapping-visual {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    margin: 1rem 0;
    flex-wrap: wrap;
}

.mapping-box {
    padding: 0.5rem 1rem;
    border-radius: 8px;
    font-family: var(--font-mono);
    font-size: 0.8rem;
    font-weight: 600;
    white-space: nowrap;
}

.mapping-box.source {
    background: rgba(229, 9, 20, 0.15);
    border: 1px solid rgba(229, 9, 20, 0.3);
    color: var(--color-primary-hover);
}

.mapping-box.target.ip {
    background: rgba(59, 130, 246, 0.15);
    border: 1px solid rgba(59, 130, 246, 0.3);
    color: var(--color-info);
}

.mapping-box.target.dns {
    background: rgba(245, 158, 11, 0.15);
    border: 1px solid rgba(245, 158, 11, 0.3);
    color: var(--color-warning);
}

.mapping-box.target.aws {
    background: rgba(34, 197, 94, 0.15);
    border: 1px solid rgba(34, 197, 94, 0.3);
    color: var(--color-success);
}

.mapping-arrow {
    font-size: 1.5rem;
    color: var(--color-text-dim);
    font-weight: bold;
}

.mapping-explain {
    font-size: 0.85rem;
    color: var(--color-text-dim);
    line-height: 1.6;
    margin-bottom: 0.75rem;
}

.mapping-example {
    background: rgba(0, 0, 0, 0.3);
    border-radius: 6px;
    padding: 0.5rem 0.75rem;
}

.mapping-example code {
    background: transparent;
    color: var(--color-text);
    padding: 0;
    font-size: 0.8rem;
}

.mapping-warning {
    margin-top: 0.75rem;
    font-size: 0.8rem;
    color: var(--color-warning);
    background: rgba(245, 158, 11, 0.08);
    border: 1px solid rgba(245, 158, 11, 0.2);
    border-radius: 6px;
    padding: 0.4rem 0.75rem;
}

/* Record Types Grid (MX, TXT, NS, SOA, CAA, SRV) */
.record-types-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1rem;
}

.record-type-card {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius);
    padding: 1.25rem;
    transition: var(--transition-fast);
}

.record-type-card:hover {
    border-color: var(--color-border-hover);
}

.rt-badge {
    display: flex;
    align-items: center;
    justify-content: center;
    min-width: 50px;
    height: 50px;
    background: rgba(229, 9, 20, 0.12);
    border: 1px solid rgba(229, 9, 20, 0.25);
    border-radius: 10px;
    color: var(--color-primary-hover);
    font-family: var(--font-mono);
    font-weight: 800;
    font-size: 0.85rem;
}

.rt-content h4 {
    color: var(--color-text-bright);
    font-size: 0.95rem;
    margin-bottom: 0.25rem;
}

.rt-content p {
    font-size: 0.8rem;
    color: var(--color-text-dim);
    margin-bottom: 0.5rem;
}

.rt-content code {
    font-size: 0.75rem;
    display: block;
}

/* Routing Policies Grid */
.routing-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(500px, 1fr));
    gap: 1.5rem;
}

.routing-card {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius);
    padding: 1.5rem;
    transition: var(--transition-smooth);
}

.routing-card:hover {
    border-color: var(--color-border-hover);
    transform: translateY(-4px);
}

.routing-header {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 0.75rem;
}

.routing-icon {
    font-size: 1.5rem;
}

.routing-header h4 {
    font-size: 1.1rem;
    color: var(--color-text-bright);
}

.routing-card > p {
    font-size: 0.88rem;
    color: var(--color-text-dim);
    margin-bottom: 1rem;
    line-height: 1.5;
}

.routing-visual {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 1rem;
    flex-wrap: wrap;
}

.rv-user {
    padding: 0.4rem 0.8rem;
    background: rgba(59, 130, 246, 0.15);
    border: 1px solid rgba(59, 130, 246, 0.3);
    border-radius: 8px;
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--color-info);
}

.rv-arrow {
    font-size: 1.2rem;
    color: var(--color-text-dim);
    font-weight: bold;
}

.rv-split {
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
}

.rv-target {
    padding: 0.35rem 0.75rem;
    border-radius: 6px;
    font-size: 0.8rem;
    font-weight: 600;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--color-border);
    color: var(--color-text-dim);
}

.rv-target.active {
    background: rgba(34, 197, 94, 0.12);
    border-color: rgba(34, 197, 94, 0.3);
    color: var(--color-success);
}

.rv-target.error {
    background: rgba(239, 68, 68, 0.12);
    border-color: rgba(239, 68, 68, 0.3);
    color: var(--color-danger);
    text-decoration: line-through;
}

.rv-target.dimmed {
    opacity: 0.4;
}

.rv-weight {
    font-size: 0.7rem;
    opacity: 0.7;
}

.routing-usecase {
    font-size: 0.78rem;
    color: var(--color-text-dim);
    background: rgba(0, 0, 0, 0.25);
    padding: 0.4rem 0.75rem;
    border-radius: 6px;
    font-style: italic;
}

/* Rich Routing Policy Cards */
.routing-card-rich {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius);
    padding: 1.75rem;
    transition: var(--transition-smooth);
}

.routing-card-rich:hover {
    border-color: var(--color-border-hover);
    transform: translateY(-3px);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.3);
}

.rr-header {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 1rem;
    flex-wrap: wrap;
}

.rr-badge {
    display: inline-block;
    padding: 0.35rem 0.85rem;
    border-radius: 50px;
    font-size: 0.8rem;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.rr-badge.simple      { background: rgba(148, 163, 184, 0.2); color: #94a3b8; }
.rr-badge.weighted     { background: rgba(245, 158, 11, 0.2);  color: var(--color-warning); }
.rr-badge.latency      { background: rgba(59, 130, 246, 0.2);  color: var(--color-info); }
.rr-badge.failover     { background: rgba(239, 68, 68, 0.2);   color: var(--color-danger); }
.rr-badge.geolocation  { background: rgba(34, 197, 94, 0.2);   color: var(--color-success); }
.rr-badge.multivalue   { background: rgba(168, 85, 247, 0.2);  color: #c084fc; }
.rr-badge.geoproximity { background: rgba(236, 72, 153, 0.2);  color: #f472b6; }
.rr-badge.ipbased      { background: rgba(20, 184, 166, 0.2);  color: #2dd4bf; }

.rr-tagline {
    font-size: 0.75rem;
    color: var(--color-text-dim);
    font-weight: 500;
}

.rr-description {
    font-size: 0.88rem;
    color: var(--color-text-dim);
    line-height: 1.65;
    margin-bottom: 1.25rem;
}

.rr-description code {
    font-size: 0.82rem;
}

.rr-visual {
    background: rgba(0, 0, 0, 0.2);
    border: 1px solid var(--color-border);
    border-radius: 10px;
    padding: 1rem 1.25rem;
    margin-bottom: 1.25rem;
}

.rr-flow-label {
    font-size: 0.72rem;
    font-weight: 700;
    color: var(--color-text-dim);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 0.75rem;
}

.rr-details-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
    margin-bottom: 1rem;
}

.rr-detail {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--color-border);
    border-radius: 8px;
    padding: 1rem;
}

.rr-detail h5 {
    font-size: 0.82rem;
    color: var(--color-text-bright);
    margin-bottom: 0.6rem;
}

.rr-detail ol {
    margin: 0;
    padding-left: 1.2rem;
}

.rr-detail ol li {
    font-size: 0.8rem;
    color: var(--color-text-dim);
    line-height: 1.6;
    margin-bottom: 0.25rem;
}

.rr-detail p {
    font-size: 0.8rem;
    color: var(--color-text-dim);
    line-height: 1.6;
    margin-bottom: 0.35rem;
}

.rr-config {
    background: rgba(0, 0, 0, 0.3);
    border-radius: 8px;
    padding: 0.75rem 1rem;
    margin-bottom: 0.75rem;
}

.rr-config h5 {
    font-size: 0.75rem;
    color: var(--color-text-bright);
    margin-bottom: 0.4rem;
}

.rr-config code {
    font-size: 0.73rem;
    background: transparent;
    color: var(--color-text);
    padding: 0;
    display: inline;
}

.rr-warning {
    font-size: 0.8rem;
    color: var(--color-warning);
    background: rgba(245, 158, 11, 0.08);
    border: 1px solid rgba(245, 158, 11, 0.2);
    border-radius: 6px;
    padding: 0.5rem 0.75rem;
    margin-bottom: 0.5rem;
}

.rr-tip {
    font-size: 0.8rem;
    color: var(--color-success);
    background: rgba(34, 197, 94, 0.08);
    border: 1px solid rgba(34, 197, 94, 0.2);
    border-radius: 6px;
    padding: 0.5rem 0.75rem;
    margin-bottom: 0.5rem;
}

.rr-compare {
    font-size: 0.78rem;
    color: var(--color-info);
    background: rgba(59, 130, 246, 0.08);
    border: 1px solid rgba(59, 130, 246, 0.2);
    border-radius: 6px;
    padding: 0.5rem 0.75rem;
    margin-bottom: 0.5rem;
}

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

/* DNS Simulator */
.dns-input-group {
    display: flex;
    gap: 0.75rem;
    justify-content: center;
    margin-bottom: 1.5rem;
    flex-wrap: wrap;
}

.dns-select {
    padding: 0.75rem 1rem;
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid var(--color-border-hover);
    border-radius: 10px;
    color: var(--color-text);
    font-family: var(--font-family);
    font-size: 0.9rem;
    min-width: 280px;
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' fill='%238b8b9e' viewBox='0 0 16 16'%3E%3Cpath d='M8 11L3 6h10z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 1rem center;
    padding-right: 2.5rem;
}

.dns-select:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 2px var(--color-primary-glow);
}

.dns-select option {
    background: #1a1a2e;
    color: var(--color-text);
}

/* ── ALB Section ── */
.alb-architecture {
    margin-bottom: 3rem;
    overflow-x: auto;
}

.alb-flow {
    display: flex;
    align-items: flex-start;
    justify-content: center;
    gap: 0.5rem;
    min-width: 700px;
    padding: 2rem 0;
}

.alb-node {
    text-align: center;
    padding: 1.25rem;
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius);
    min-width: 120px;
    transition: var(--transition-smooth);
}

.alb-node.highlight {
    border-color: var(--color-primary);
    background: rgba(229, 9, 20, 0.08);
    box-shadow: 0 0 20px rgba(229, 9, 20, 0.15);
}

.alb-node-icon {
    font-size: 2rem;
    margin-bottom: 0.5rem;
}

.alb-node-label {
    font-size: 0.8rem;
    color: var(--color-text-dim);
    line-height: 1.5;
}

.alb-node-label code {
    font-size: 0.7rem;
}

.alb-connector {
    font-size: 1.5rem;
    color: var(--color-primary);
    font-weight: bold;
    display: flex;
    align-items: center;
    padding-top: 1.5rem;
}

.alb-targets {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.alb-target-group {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius);
    padding: 1rem;
    min-width: 160px;
}

.alb-tg-title {
    font-size: 0.75rem;
    font-weight: 700;
    color: var(--color-text-bright);
    margin-bottom: 0.5rem;
    font-family: var(--font-mono);
}

.alb-target {
    font-size: 0.8rem;
    padding: 0.25rem 0.5rem;
    border-radius: 4px;
    margin-bottom: 0.25rem;
}

.alb-target.healthy {
    color: var(--color-success);
}

.alb-target.unhealthy {
    color: var(--color-danger);
    text-decoration: line-through;
    opacity: 0.6;
}

.alb-features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 1.5rem;
}

.alb-feature {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius);
    padding: 1.5rem;
    transition: var(--transition-smooth);
}

.alb-feature:hover {
    border-color: var(--color-border-hover);
    transform: translateY(-4px);
}

.alb-feature h4 {
    color: var(--color-text-bright);
    margin-bottom: 0.75rem;
    font-size: 1rem;
}

.alb-feature p {
    font-size: 0.85rem;
    color: var(--color-text-dim);
    line-height: 1.6;
}

/* ── EC2 Instance Banner ── */
.ec2-banner {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1001;
    background: linear-gradient(135deg, rgba(34, 197, 94, 0.15), rgba(59, 130, 246, 0.1));
    border-bottom: 1px solid rgba(34, 197, 94, 0.3);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    padding: 0.4rem 1rem;
    font-size: 0.78rem;
}

.ec2-banner-inner {
    max-width: 1280px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    flex-wrap: wrap;
}

.ec2-label {
    font-weight: 800;
    color: var(--color-success);
    letter-spacing: 0.3px;
}

.ec2-info {
    color: var(--color-text);
    font-family: var(--font-mono);
    font-weight: 500;
    font-size: 0.75rem;
}

.ec2-divider {
    color: var(--color-border-hover);
    font-weight: 300;
}

/* Shift navbar down when EC2 banner is visible */
body.has-ec2-banner #navbar {
    top: 32px;
}

body.has-ec2-banner .hero {
    padding-top: calc(120px + 32px);
}

/* ── Scrollbar ── */
::-webkit-scrollbar {
    width: 8px;
}
::-webkit-scrollbar-track {
    background: var(--color-bg-base);
}
::-webkit-scrollbar-thumb {
    background: var(--color-border-hover);
    border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
    background: var(--color-text-dim);
}