/* ==========================================================================
   白月光网络加速器 - 极速晴空 Design System (styles.css)
   Pure Vanilla CSS - Ultra Light, High Performance & Mobile Responsive
   ========================================================================== */

:root {
    /* Color Tokens - 极速晴空 Sky Blue Palette */
    --color-bg-dark: #070a12;
    --color-bg-card: rgba(15, 23, 42, 0.75);
    --color-bg-card-hover: rgba(30, 41, 59, 0.85);
    --color-bg-alt: #0b1120;
    
    --color-sky-primary: #0099ff;
    --color-sky-light: #38bdf8;
    --color-cyan-glow: #00f2fe;
    --color-sky-dark: #0284c7;
    
    --color-text-main: #f8fafc;
    --color-text-muted: #94a3b8;
    --color-text-dim: #64748b;
    
    --color-border: rgba(56, 189, 248, 0.15);
    --color-border-glow: rgba(56, 189, 248, 0.4);

    /* Gradients */
    --grad-sky: linear-gradient(135deg, #00f2fe 0%, #0099ff 100%);
    --grad-sky-glow: linear-gradient(135deg, rgba(0, 242, 254, 0.2) 0%, rgba(0, 153, 255, 0.2) 100%);
    --grad-card-border: linear-gradient(135deg, rgba(56, 189, 248, 0.3), rgba(0, 153, 255, 0.05));

    /* Typography */
    --font-sans: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", sans-serif;

    /* Spacing & Layout */
    --header-height: 72px;
    --radius-sm: 8px;
    --radius-md: 16px;
    --radius-lg: 24px;
    --radius-full: 9999px;
    
    /* Transitions */
    --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-smooth: 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
    background-color: var(--color-bg-dark);
    color: var(--color-text-main);
    font-family: var(--font-sans);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    overflow-x: hidden;
    line-height: 1.6;
}

a {
    color: inherit;
    text-decoration: none;
    transition: color var(--transition-fast);
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

/* Layout Containers */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

.container-sm {
    max-width: 860px;
}

.page-section {
    position: relative;
    width: 100%;
    scroll-margin-top: var(--header-height);
}

.section-padding {
    padding: 100px 0;
}

.bg-alt {
    background-color: var(--color-bg-alt);
    border-top: 1px solid var(--color-border);
    border-bottom: 1px solid var(--color-border);
}

/* Typography Utilities */
.text-center { text-align: center; }
.justify-center { justify-content: center; }

.gradient-text {
    background: var(--grad-sky);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    display: inline-block;
}

.section-tag {
    display: inline-block;
    font-size: 0.8rem;
    font-weight: 800;
    letter-spacing: 2px;
    color: var(--color-sky-light);
    text-transform: uppercase;
    margin-bottom: 12px;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 800;
    line-height: 1.25;
    margin-bottom: 16px;
    color: #fff;
}

.section-desc {
    font-size: 1.1rem;
    color: var(--color-text-muted);
    max-width: 640px;
    margin: 0 auto 56px auto;
}

/* Glow Backgrounds */
.glow-bg {
    position: absolute;
    border-radius: 50%;
    filter: blur(140px);
    pointer-events: none;
    z-index: 0;
}

.top-glow {
    top: -100px;
    left: 50%;
    transform: translateX(-50%);
    width: 600px;
    height: 300px;
    background: rgba(0, 153, 255, 0.15);
}

.hero-glow {
    top: 20%;
    right: 10%;
    width: 450px;
    height: 450px;
    background: rgba(0, 242, 254, 0.12);
}

/* Buttons System */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 14px 28px;
    border-radius: var(--radius-full);
    font-weight: 700;
    font-size: 1rem;
    cursor: pointer;
    border: 1px solid transparent;
    transition: all var(--transition-fast);
    position: relative;
    overflow: hidden;
    white-space: nowrap;
}

.btn-primary {
    background: var(--grad-sky);
    color: #040914;
    box-shadow: 0 4px 20px rgba(0, 153, 255, 0.35);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(0, 242, 254, 0.5);
    filter: brightness(1.08);
}

.btn-secondary {
    background: rgba(15, 23, 42, 0.8);
    color: var(--color-sky-light);
    border-color: var(--color-border-glow);
}

.btn-secondary:hover {
    background: rgba(30, 41, 59, 0.9);
    border-color: var(--color-sky-light);
    color: #fff;
    transform: translateY(-2px);
}

.btn-recommend {
    background: linear-gradient(135deg, #00f2fe 0%, #4facfe 100%);
    color: #030814;
    font-weight: 800;
    box-shadow: 0 4px 20px rgba(0, 242, 254, 0.4);
    border: 1px solid rgba(255, 255, 255, 0.3);
}

.btn-recommend:hover {
    transform: translateY(-2px) scale(1.03);
    box-shadow: 0 8px 30px rgba(0, 242, 254, 0.7);
    filter: brightness(1.1);
}

.btn-outline {
    background: transparent;
    color: var(--color-text-main);
    border-color: var(--color-border-glow);
}

.btn-outline:hover {
    border-color: var(--color-sky-light);
    background: rgba(56, 189, 248, 0.1);
    color: var(--color-sky-light);
}

.btn-nav {
    padding: 10px 20px;
    font-size: 0.9rem;
    background: var(--grad-sky);
    color: #040914;
}

.btn-block {
    width: 100%;
}

.btn-arrow {
    width: 18px;
    height: 18px;
    transition: transform var(--transition-fast);
}

.btn-primary:hover .btn-arrow {
    transform: translateX(4px);
}

.glow-btn {
    animation: pulseGlow 3s infinite alternate;
}

@keyframes pulseGlow {
    0% { box-shadow: 0 4px 20px rgba(0, 153, 255, 0.4); }
    100% { box-shadow: 0 8px 35px rgba(0, 242, 254, 0.7); }
}

/* Header & Navbar */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: var(--header-height);
    z-index: 1000;
    backdrop-filter: blur(16px);
    background: rgba(7, 10, 18, 0.85);
    border-bottom: 1px solid rgba(56, 189, 248, 0.1);
    transition: all var(--transition-smooth);
}

.header.scrolled {
    background: rgba(7, 10, 18, 0.95);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
}

.nav-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* Header Logo & Interactive FX */
.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 800;
    font-size: 1.35rem;
    color: #fff;
    cursor: pointer;
    position: relative;
    user-select: none;
}

.logo-icon {
    width: 38px;
    height: 38px;
    border-radius: 10px;
    background: var(--grad-sky);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #040914;
    box-shadow: 0 4px 14px rgba(0, 153, 255, 0.4);
    transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

.logo-icon svg {
    width: 22px;
    height: 22px;
}

.logo-accent {
    color: var(--color-sky-light);
    font-weight: 600;
    font-size: 1.1rem;
}

.logo:hover .logo-icon {
    transform: scale(1.08) rotate(-4deg);
    box-shadow: 0 6px 20px rgba(0, 242, 254, 0.6);
}

/* Logo Click Interactive Effect */
.logo-ripple {
    position: absolute;
    top: 50%;
    left: 20px;
    width: 10px;
    height: 10px;
    background: var(--color-cyan-glow);
    border-radius: 50%;
    transform: translate(-50%, -50%) scale(1);
    opacity: 0.8;
    pointer-events: none;
    animation: rippleExpand 0.6s ease-out forwards;
}

@keyframes rippleExpand {
    to {
        transform: translate(-50%, -50%) scale(15);
        opacity: 0;
    }
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 32px;
}

.nav-links a {
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--color-text-muted);
}

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

/* Hero Section */
.hero-section {
    padding-top: calc(var(--header-height) + 60px);
    padding-bottom: 100px;
    min-height: 90vh;
    display: flex;
    align-items: center;
}

.hero-container {
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: 48px;
    align-items: center;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 6px 16px;
    border-radius: var(--radius-full);
    background: rgba(56, 189, 248, 0.08);
    border: 1px solid rgba(56, 189, 248, 0.25);
    color: var(--color-sky-light);
    font-size: 0.85rem;
    font-weight: 700;
    margin-bottom: 24px;
}

.badge-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--color-cyan-glow);
    box-shadow: 0 0 10px var(--color-cyan-glow);
    animation: pulseDot 1.5s infinite alternate;
}

@keyframes pulseDot {
    0% { opacity: 0.4; }
    100% { opacity: 1; }
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 800;
    line-height: 1.15;
    margin-bottom: 24px;
    color: #fff;
    letter-spacing: -1px;
}

.hero-subtitle {
    font-size: 1.15rem;
    color: var(--color-text-muted);
    margin-bottom: 40px;
    line-height: 1.7;
}

.hero-actions {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 48px;
    flex-wrap: wrap;
}

.hero-stats {
    display: flex;
    align-items: center;
    gap: 32px;
    padding-top: 24px;
    border-top: 1px solid var(--color-border);
}

.stat-num {
    display: block;
    font-size: 1.8rem;
    font-weight: 800;
    color: #fff;
}

.stat-label {
    font-size: 0.85rem;
    color: var(--color-text-dim);
}

.stat-divider {
    width: 1px;
    height: 36px;
    background: var(--color-border);
}

.hero-visual {
    position: relative;
}

.hero-image-wrapper {
    position: relative;
    border-radius: var(--radius-lg);
    overflow: hidden;
    border: 1px solid var(--color-border-glow);
    box-shadow: 0 20px 50px rgba(0, 153, 255, 0.2);
}

.hero-img {
    width: 100%;
    height: auto;
    object-fit: cover;
    transition: transform var(--transition-smooth);
}

.hero-image-wrapper:hover .hero-img {
    transform: scale(1.03);
}

.img-glass-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, rgba(7, 10, 18, 0) 40%, rgba(7, 10, 18, 0.85) 100%);
    pointer-events: none;
}

/* Dynamic Live Gauge Overlay on Hero Card */
.hero-dynamic-card {
    position: absolute;
    bottom: 20px;
    left: 20px;
    right: 20px;
    background: rgba(11, 17, 32, 0.88);
    backdrop-filter: blur(16px);
    border: 1px solid var(--color-border-glow);
    border-radius: var(--radius-md);
    padding: 18px 22px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
    z-index: 10;
}

.dynamic-header {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 12px;
}

.live-dot.pulse {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: var(--color-cyan-glow);
    box-shadow: 0 0 12px var(--color-cyan-glow);
    animation: livePulse 1.2s infinite alternate;
}

@keyframes livePulse {
    0% { opacity: 0.3; transform: scale(0.9); }
    100% { opacity: 1; transform: scale(1.2); }
}

.live-title {
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--color-text-main);
}

.live-ping {
    margin-left: auto;
    font-size: 0.8rem;
    font-weight: 800;
    color: #22c55e;
    background: rgba(34, 197, 94, 0.12);
    padding: 2px 8px;
    border-radius: var(--radius-full);
    border: 1px solid rgba(34, 197, 94, 0.3);
}

.speed-gauge {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 12px;
}

.speed-label {
    display: block;
    font-size: 0.75rem;
    color: var(--color-text-dim);
}

.speed-value {
    font-size: 1.6rem;
    font-weight: 800;
    color: #fff;
    line-height: 1.1;
}

.speed-value small {
    font-size: 0.85rem;
    color: var(--color-sky-light);
    font-weight: 600;
}

.wave-chart {
    width: 130px;
    height: 32px;
}

.wave-svg {
    width: 100%;
    height: 100%;
}

.wave-path {
    stroke-dasharray: 200;
    stroke-dashoffset: 0;
    animation: dashWave 3s linear infinite;
}

@keyframes dashWave {
    0% { stroke-dashoffset: 200; }
    100% { stroke-dashoffset: 0; }
}

.dynamic-footer {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.node-tag {
    font-size: 0.72rem;
    font-weight: 700;
    padding: 3px 8px;
    border-radius: var(--radius-sm);
    background: rgba(255, 255, 255, 0.06);
    color: var(--color-sky-light);
    border: 1px solid rgba(56, 189, 248, 0.15);
}

/* Article Card Styles */
.article-card {
    display: flex;
    flex-direction: column;
    height: 100%;
}

.article-card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 16px;
}

.article-date {
    font-size: 0.78rem;
    color: var(--color-text-dim);
}

.article-card-title {
    font-size: 1.15rem;
    font-weight: 700;
    line-height: 1.4;
    margin-bottom: 12px;
    color: #fff;
}

.article-excerpt {
    font-size: 0.88rem;
    color: var(--color-text-muted);
    line-height: 1.6;
    margin-bottom: 20px;
}

/* Grids & Cards */
.grid {
    display: grid;
    gap: 28px;
}

.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

.card {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: 36px 28px;
    backdrop-filter: blur(16px);
    transition: all var(--transition-smooth);
    position: relative;
    overflow: hidden;
}

.card:hover {
    background: var(--color-bg-card-hover);
    border-color: var(--color-sky-light);
    transform: translateY(-4px);
    box-shadow: 0 16px 36px rgba(0, 153, 255, 0.15);
}

.feature-card .card-icon {
    width: 54px;
    height: 54px;
    border-radius: 14px;
    background: rgba(56, 189, 248, 0.1);
    border: 1px solid rgba(56, 189, 248, 0.25);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-cyan-glow);
    margin-bottom: 24px;
}

.feature-card .card-icon svg {
    width: 28px;
    height: 28px;
}

.card-title {
    font-size: 1.3rem;
    font-weight: 700;
    margin-bottom: 12px;
    color: #fff;
}

.card-text {
    font-size: 0.95rem;
    color: var(--color-text-muted);
    line-height: 1.6;
    margin-bottom: 24px;
}

.card-meta {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.tag {
    font-size: 0.75rem;
    font-weight: 700;
    padding: 4px 10px;
    border-radius: var(--radius-full);
    background: rgba(255, 255, 255, 0.05);
    color: var(--color-sky-light);
    border: 1px solid rgba(56, 189, 248, 0.15);
}

.highlight-card {
    border-color: rgba(0, 242, 254, 0.4);
    box-shadow: 0 10px 30px rgba(0, 242, 254, 0.1);
}

/* Streaming & AI Cards */
.platform-card {
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.platform-header {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 24px;
}

.platform-icon {
    width: 48px;
    height: 48px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.platform-icon svg {
    width: 24px;
    height: 24px;
}

.streaming-icon { background: rgba(239, 68, 68, 0.15); color: #ef4444; border: 1px solid rgba(239, 68, 68, 0.3); }
.ai-icon { background: rgba(0, 242, 254, 0.15); color: var(--color-cyan-glow); border: 1px solid rgba(0, 242, 254, 0.3); }

.platform-header h3 {
    font-size: 1.25rem;
    font-weight: 700;
    color: #fff;
}

.platform-header p {
    font-size: 0.85rem;
    color: var(--color-text-muted);
}

.tags-cloud {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 32px;
}

.badge-tag {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 14px;
    border-radius: var(--radius-sm);
    background: rgba(15, 23, 42, 0.9);
    border: 1px solid var(--color-border);
    font-size: 0.85rem;
    color: var(--color-text-main);
}

.dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
}
.dot.red { background: #ef4444; }
.dot.blue { background: #3b82f6; }
.dot.purple { background: #a855f7; }
.dot.green { background: #22c55e; }
.dot.yellow { background: #eab308; }
.dot.cyan { background: #06b6d4; }
.dot.orange { background: #f97316; }
.dot.pink { background: #ec4899; }
.dot.sky { background: #0ea5e9; }

/* Pricing Cards */
.pricing-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
    align-items: stretch;
}

.pricing-card {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: 40px 32px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    position: relative;
    transition: all var(--transition-smooth);
}

.pricing-card:hover {
    border-color: var(--color-sky-light);
    transform: translateY(-6px);
    box-shadow: 0 20px 40px rgba(0, 153, 255, 0.2);
}

.featured-plan {
    background: rgba(15, 23, 42, 0.95);
    border-color: var(--color-cyan-glow);
    box-shadow: 0 10px 40px rgba(0, 242, 254, 0.2);
    transform: scale(1.04);
}

.featured-plan:hover {
    transform: scale(1.06) translateY(-6px);
}

.plan-badge {
    position: absolute;
    top: 0;
    left: 50%;
    transform: translate(-50%, -50%);
    background: var(--grad-sky);
    color: #040914;
    font-size: 0.75rem;
    font-weight: 800;
    padding: 4px 16px;
    border-radius: var(--radius-full);
    box-shadow: 0 4px 12px rgba(0, 242, 254, 0.4);
    white-space: nowrap;
}

.plan-name {
    font-size: 1.4rem;
    font-weight: 800;
    color: #fff;
    margin-bottom: 6px;
}

.plan-desc {
    font-size: 0.85rem;
    color: var(--color-text-muted);
    margin-bottom: 24px;
}

.plan-price {
    display: flex;
    align-items: baseline;
    margin-bottom: 32px;
}

.plan-price .currency {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--color-sky-light);
}

.plan-price .price-val {
    font-size: 3.2rem;
    font-weight: 800;
    color: #fff;
    line-height: 1;
    margin: 0 4px;
}

.plan-price .period {
    font-size: 0.9rem;
    color: var(--color-text-dim);
}

.plan-features {
    list-style: none;
    margin-bottom: 36px;
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.plan-features li {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 0.92rem;
    color: var(--color-text-main);
}

.plan-features li svg {
    width: 18px;
    height: 18px;
    color: var(--color-cyan-glow);
    flex-shrink: 0;
}

.plan-features li.disabled {
    color: var(--color-text-dim);
    text-decoration: line-through;
}

.plan-features li.disabled svg {
    color: var(--color-text-dim);
}

/* FAQ Accordion */
.faq-list {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.faq-item {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    overflow: hidden;
    transition: border-color var(--transition-fast);
}

.faq-item:hover, .faq-item.active {
    border-color: var(--color-sky-light);
}

.faq-question {
    padding: 22px 28px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    cursor: pointer;
    user-select: none;
}

.faq-question h4 {
    font-size: 1.05rem;
    font-weight: 700;
    color: #fff;
}

.faq-toggle {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    background: rgba(56, 189, 248, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-sky-light);
    transition: transform var(--transition-fast);
}

.faq-toggle svg {
    width: 16px;
    height: 16px;
}

.faq-item.active .faq-toggle {
    transform: rotate(180deg);
    background: var(--color-sky-primary);
    color: #fff;
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.35s ease, padding 0.35s ease;
    padding: 0 28px;
}

.faq-item.active .faq-answer {
    max-height: 200px;
    padding: 0 28px 22px 28px;
}

.faq-answer p {
    font-size: 0.95rem;
    color: var(--color-text-muted);
    line-height: 1.6;
}

/* User Reviews */
.review-card {
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.review-stars {
    color: #f59e0b;
    font-size: 1.1rem;
    letter-spacing: 2px;
    margin-bottom: 16px;
}

.review-text {
    font-size: 0.95rem;
    color: var(--color-text-muted);
    font-style: italic;
    line-height: 1.6;
    margin-bottom: 24px;
}

.reviewer {
    display: flex;
    align-items: center;
    gap: 12px;
}

.avatar {
    width: 42px;
    height: 42px;
    border-radius: 50%;
    background: var(--grad-sky);
    color: #040914;
    font-weight: 800;
    font-size: 0.85rem;
    display: flex;
    align-items: center;
    justify-content: center;
}

.reviewer-name {
    font-size: 0.95rem;
    font-weight: 700;
    color: #fff;
}

.reviewer-role {
    font-size: 0.78rem;
    color: var(--color-text-dim);
}

/* Footer Section */
.footer {
    padding: 60px 0 40px 0;
    border-top: 1px solid var(--color-border);
    background: #04070d;
}

.footer-brand {
    margin-bottom: 32px;
}

.footer-slogan {
    font-size: 0.9rem;
    color: var(--color-text-dim);
    margin-top: 8px;
}

/* STRICT FOOTER NAV REQUIREMENTS: ONLY 4 LINKS */
.footer-links-strict {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 36px;
    margin-bottom: 36px;
    flex-wrap: wrap;
}

.footer-nav-item {
    font-size: 1rem;
    font-weight: 700;
    color: var(--color-text-muted);
    padding: 6px 14px;
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
}

.footer-nav-item:hover {
    color: var(--color-cyan-glow);
    background: rgba(56, 189, 248, 0.08);
}

.footer-bottom {
    padding-top: 24px;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    font-size: 0.85rem;
    color: var(--color-text-dim);
}

/* ==========================================================================
   Interactive Floating Section Navigation Arrows (Right Side)
   ========================================================================== */
.section-nav-widget {
    position: fixed;
    right: 24px;
    top: 50%;
    transform: translateY(-50%);
    z-index: 1200;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
    background: rgba(7, 10, 18, 0.75);
    backdrop-filter: blur(16px);
    border: 1px solid var(--color-border-glow);
    border-radius: 30px;
    padding: 10px 8px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.6);
    transition: all var(--transition-smooth);
}

.nav-arrow {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: rgba(15, 23, 42, 0.9);
    border: 1px solid var(--color-border);
    color: var(--color-sky-light);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all var(--transition-fast);
    outline: none;
}

.nav-arrow svg {
    width: 22px;
    height: 22px;
}

.nav-arrow:hover {
    background: var(--grad-sky);
    color: #040914;
    border-color: transparent;
    transform: scale(1.12);
    box-shadow: 0 4px 16px rgba(0, 242, 254, 0.6);
}

.nav-arrow:active {
    transform: scale(0.95);
}

.nav-arrow.disabled {
    opacity: 0.3;
    cursor: not-allowed;
    pointer-events: none;
}

.nav-indicator {
    font-size: 0.72rem;
    font-weight: 800;
    color: var(--color-sky-light);
    letter-spacing: 1px;
    padding: 2px 0;
    user-select: none;
}

/* ==========================================================================
   Mobile Responsive (@media queries)
   ========================================================================== */
@media (max-width: 992px) {
    .hero-container {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .hero-title {
        font-size: 2.8rem;
    }

    .hero-actions, .hero-stats {
        justify-content: center;
    }

    .grid-3, .grid-4, .pricing-grid {
        grid-template-columns: 1fr;
    }

    .grid-2 {
        grid-template-columns: 1fr;
    }

    .featured-plan {
        transform: none;
    }

    .featured-plan:hover {
        transform: translateY(-6px);
    }
}

@media (max-width: 768px) {
    :root {
        --header-height: 64px;
    }

    .nav-links {
        display: none; /* Mobile navigation simplicity */
    }

    .section-title {
        font-size: 2rem;
    }

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

    .hero-subtitle {
        font-size: 1rem;
    }

    .btn {
        width: 100%; /* Finger friendly tap target */
    }

    .hero-actions {
        flex-direction: column;
        width: 100%;
    }

    .hero-stats {
        flex-direction: column;
        gap: 16px;
    }

    .stat-divider {
        width: 100%;
        height: 1px;
    }

    .section-nav-widget {
        right: 12px;
        padding: 6px 4px;
    }

    .nav-arrow {
        width: 38px;
        height: 38px;
    }

    .footer-links-strict {
        gap: 16px;
        flex-direction: column;
    }
}