/* ===================================
   Surface Alpha — Design System CSS
   "The Neon Quant" Aesthetic
   =================================== */

/* --- CSS Custom Properties --- */
:root {
    /* Surfaces */
    --background: #0e0e0f;
    --surface: #0e0e0f;
    --surface-dim: #0e0e0f;
    --surface-bright: #2c2c2e;
    --surface-container-lowest: #000000;
    --surface-container-low: #131314;
    --surface-container: #19191b;
    --surface-container-high: #1f1f21;
    --surface-container-highest: #262627;
    --surface-variant: #262627;

    /* Primary — Purple/Neon */
    --primary: #d674ff;
    --primary-container: #be0dff;
    --primary-dim: #bb00fc;
    --on-primary: #390050;
    --on-primary-container: #000000;

    /* Secondary — Orange/Amber */
    --secondary: #ffb77d;
    --secondary-container: #3e1d00;
    --secondary-dim: #fd8b00;
    --on-secondary: #643400;

    /* Tertiary — Green/Success */
    --tertiary: #c6ffc8;
    --tertiary-container: #a2f6ab;
    --tertiary-dim: #95e79e;
    --on-tertiary: #12682e;

    /* Error — Red */
    --error: #fd6f85;
    --error-container: #8a1632;
    --on-error: #490013;

    /* Text */
    --on-background: #e7e5e7;
    --on-surface: #e7e5e7;
    --on-surface-variant: #acaaad;
    --outline: #767577;
    --outline-variant: #48484a;

    /* Fonts */
    --font-display: 'Space Grotesk', sans-serif;
    --font-body: 'Manrope', sans-serif;
    --font-label: 'Inter', sans-serif;

    /* Roundness */
    --radius-sm: 0.25rem;
    --radius-md: 0.375rem;
    --radius-lg: 0.5rem;
    --radius-xl: 0.75rem;
    --radius-2xl: 1rem;
    --radius-full: 9999px;
}

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

html {
    scroll-behavior: smooth;
    scrollbar-width: thin;
    scrollbar-color: var(--surface-variant) transparent;
}

body {
    font-family: var(--font-body);
    background: var(--background);
    color: var(--on-surface);
    line-height: 1.6;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--surface-variant); border-radius: var(--radius-full); }
::-webkit-scrollbar-thumb:hover { background: var(--outline); }

a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }

/* --- Utility --- */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

.section {
    padding: 6rem 0;
    position: relative;
}

.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-tag {
    display: inline-block;
    font-family: var(--font-label);
    font-size: 0.7rem;
    font-weight: 600;
    letter-spacing: 0.2em;
    color: var(--primary);
    padding: 0.4rem 1rem;
    background: rgba(214, 116, 255, 0.08);
    border: 1px solid rgba(214, 116, 255, 0.15);
    border-radius: var(--radius-full);
    margin-bottom: 1.25rem;
    text-transform: uppercase;
}

.section-title {
    font-family: var(--font-display);
    font-size: clamp(2rem, 5vw, 3rem);
    font-weight: 700;
    line-height: 1.1;
    margin-bottom: 1rem;
    color: var(--on-surface);
}

.section-desc {
    font-size: 1rem;
    color: var(--on-surface-variant);
    max-width: 600px;
    margin: 0 auto;
    line-height: 1.7;
}

/* --- Buttons --- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    font-family: var(--font-display);
    font-size: 0.875rem;
    font-weight: 600;
    letter-spacing: 0.05em;
    padding: 0.875rem 1.75rem;
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    text-transform: uppercase;
    position: relative;
    overflow: hidden;
}

.btn .material-icons-round {
    font-size: 1.1rem;
    transition: transform 0.3s ease;
}

.btn:hover .material-icons-round {
    transform: translateX(3px);
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary), var(--primary-container));
    color: var(--on-primary);
    box-shadow: 0 0 0 0 rgba(214, 116, 255, 0);
}

.btn-primary:hover {
    box-shadow: 0 0 30px rgba(214, 116, 255, 0.35);
    transform: translateY(-2px);
}

.btn-secondary {
    background: transparent;
    color: var(--secondary);
    border: 1px solid rgba(118, 117, 119, 0.2);
}

.btn-secondary:hover {
    border-color: var(--secondary);
    box-shadow: 0 0 20px rgba(255, 183, 125, 0.15);
    transform: translateY(-2px);
}

.btn-ghost {
    background: transparent;
    color: var(--on-surface-variant);
    border: 1px solid rgba(118, 117, 119, 0.2);
}

.btn-ghost:hover {
    border-color: var(--outline);
    color: var(--on-surface);
    transform: translateY(-2px);
}

.btn-lg {
    padding: 1rem 2.25rem;
    font-size: 0.9375rem;
}

.btn-block {
    width: 100%;
}

/* --- Navigation --- */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 1rem 0;
    transition: all 0.3s ease;
    background: rgba(14, 14, 15, 0.6);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(72, 72, 74, 0.1);
}

.nav.scrolled {
    background: rgba(14, 14, 15, 0.9);
    border-bottom-color: rgba(72, 72, 74, 0.2);
}

.nav-inner {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1.5rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-logo {
    font-family: var(--font-display);
    font-size: 1.25rem;
    font-weight: 700;
    letter-spacing: 0.05em;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--primary);
}

.logo-icon { color: var(--primary); font-size: 1.5rem; }
.logo-highlight { color: var(--primary); }

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

.nav-link {
    font-family: var(--font-label);
    font-size: 0.7rem;
    font-weight: 500;
    letter-spacing: 0.15em;
    color: var(--on-surface-variant);
    transition: color 0.3s ease;
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 1px;
    background: var(--primary);
    transition: width 0.3s ease;
}

.nav-link:hover, .nav-link.active { color: var(--on-surface); }
.nav-link:hover::after, .nav-link.active::after { width: 100%; }

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px;
}

.nav-toggle span {
    width: 22px;
    height: 2px;
    background: var(--on-surface);
    transition: all 0.3s ease;
}

/* ===========================
   PLOTLY 3D BACKGROUND
   =========================== */
#plotly-bg {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    z-index: 0;
    pointer-events: none;
    opacity: 0.55;
}

/* Ensure Plotly doesn't show loading artifacts */
#plotly-bg .plotly .modebar { display: none !important; }

/* ===========================
   HERO — Split Layout
   =========================== */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    padding: 6rem 1.5rem 4rem;
    overflow: hidden;
    z-index: 1;
}

.hero-layout {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: center;
    width: 100%;
    position: relative;
    z-index: 2;
}

.hero-text {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-family: var(--font-label);
    font-size: 0.65rem;
    font-weight: 500;
    letter-spacing: 0.2em;
    color: var(--tertiary);
    padding: 0.5rem 1.25rem;
    background: rgba(198, 255, 200, 0.06);
    border: 1px solid rgba(198, 255, 200, 0.12);
    border-radius: var(--radius-full);
    margin-bottom: 1.5rem;
}

.pulse-dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--tertiary);
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { box-shadow: 0 0 0 0 rgba(198, 255, 200, 0.4); }
    50% { box-shadow: 0 0 10px 4px rgba(198, 255, 200, 0.15); }
}

.hero-title {
    font-family: var(--font-display);
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 700;
    line-height: 0.95;
    letter-spacing: -0.02em;
    margin-bottom: 1.5rem;
    text-align: left;
}

.hero-title-gradient {
    background: linear-gradient(135deg, var(--primary), var(--primary-container), var(--secondary));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero-subtitle {
    font-size: 1rem;
    color: var(--on-surface-variant);
    line-height: 1.7;
    margin-bottom: 2rem;
    max-width: 440px;
}

.hero-cta-group {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

/* ===========================
   DASHBOARD WIDGETS (Hero Right)
   =========================== */
.hero-dashboard {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    position: relative;
}

/* Terminal / Volatility Widget */
.dash-terminal {
    background: var(--surface-container-lowest);
    border-radius: var(--radius-xl);
    overflow: hidden;
    border: 1px solid rgba(72, 72, 74, 0.15);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.4);
}

.terminal-header {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.6rem 1rem;
    background: var(--surface-container);
}

.terminal-dot { width: 10px; height: 10px; border-radius: 50%; }
.terminal-dot.red { background: #ff5f57; }
.terminal-dot.yellow { background: #febc2e; }
.terminal-dot.green { background: #28c840; }

.terminal-title {
    font-family: var(--font-label);
    font-size: 0.65rem;
    color: var(--on-surface-variant);
    margin-left: auto;
    letter-spacing: 0.1em;
}

.dash-vol-card {
    padding: 1.25rem;
}

.dash-label {
    font-family: var(--font-label);
    font-size: 0.55rem;
    font-weight: 600;
    letter-spacing: 0.15em;
    color: var(--secondary);
    text-transform: uppercase;
    display: block;
}

.dash-vol-row {
    display: flex;
    align-items: baseline;
    gap: 0.75rem;
    margin-top: 0.5rem;
}

.dash-vol-value {
    font-family: var(--font-display);
    font-size: 2rem;
    font-weight: 700;
    color: var(--on-surface);
}

.dash-vol-delta {
    font-family: var(--font-label);
    font-size: 0.75rem;
    font-weight: 600;
}

.dash-vol-delta.positive { color: var(--tertiary); }
.dash-vol-delta.negative { color: var(--error); }

.dash-vol-chart {
    margin-top: 0.75rem;
}

.mini-chart {
    width: 100%;
    height: 40px;
}

/* Bottom row — Signal + Compute */
.dash-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.75rem;
}

.dash-widget {
    background: var(--surface-container);
    border-radius: var(--radius-lg);
    padding: 1rem 1.25rem;
    border: 1px solid rgba(72, 72, 74, 0.1);
}

.dash-bar-track {
    width: 100%;
    height: 6px;
    background: var(--surface-container-lowest);
    border-radius: var(--radius-full);
    margin-top: 0.75rem;
    overflow: hidden;
}

.dash-bar-fill {
    height: 100%;
    border-radius: var(--radius-full);
    transition: width 1s ease;
}

.signal-fill {
    width: 72%;
    background: linear-gradient(90deg, var(--secondary-dim), var(--secondary));
}

.compute-fill {
    width: 45%;
    background: linear-gradient(90deg, var(--primary-dim), var(--primary));
}

/* Console */
.dash-console {
    background: var(--surface-container-lowest);
    border-radius: var(--radius-lg);
    padding: 1rem 1.25rem;
    border: 1px solid rgba(72, 72, 74, 0.1);
}

.dash-console code {
    font-family: 'SF Mono', 'Fira Code', monospace;
    font-size: 0.7rem;
    line-height: 1.8;
    color: var(--on-surface-variant);
}

.code-prompt { color: var(--outline); }
.code-string { color: var(--tertiary); }
.code-tertiary { color: var(--tertiary); font-weight: 600; }
.code-keyword { color: var(--primary); }
.code-number { color: var(--secondary); }
.code-comment { color: var(--outline); font-style: italic; }

/* Latency Chip */
.dash-latency {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: var(--surface-container);
    border-radius: var(--radius-lg);
    padding: 0.75rem 1.25rem;
    border: 1px solid rgba(72, 72, 74, 0.1);
    align-self: flex-start;
}

.dash-latency-value {
    font-family: var(--font-display);
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--tertiary);
}

.dash-latency-unit {
    font-size: 0.75rem;
    font-weight: 400;
    color: var(--on-surface-variant);
}

/* ===========================
   PRICING SECTION
   =========================== */
.pricing-section {
    background: var(--surface-container-lowest);
    z-index: 2;
    position: relative;
}

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.25rem;
    align-items: start;
}

.pricing-grid-3 {
    grid-template-columns: repeat(3, 1fr);
    max-width: 960px;
    margin: 0 auto;
}

.pricing-grid-2 {
    grid-template-columns: repeat(2, 1fr);
    max-width: 720px;
    margin: 0 auto;
}

.pricing-card {
    background: var(--surface-container);
    border-radius: var(--radius-xl);
    padding: 0;
    position: relative;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    display: flex;
    flex-direction: column;
    overflow: visible;
}

.pricing-card-inner {
    padding: 2rem 1.5rem;
    display: flex;
    flex-direction: column;
    height: 100%;
}

.pricing-card::before {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: var(--radius-xl);
    padding: 1px;
    background: linear-gradient(135deg, transparent, transparent);
    -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
    mask-composite: exclude;
    transition: background 0.4s ease;
    pointer-events: none;
}

.pricing-card:hover {
    transform: translateY(-6px);
}

.pricing-card:hover::before {
    background: linear-gradient(135deg, rgba(214, 116, 255, 0.2), rgba(190, 13, 255, 0.05));
}

.pricing-card-featured {
    background: var(--surface-container-high);
    border: 1px solid rgba(214, 116, 255, 0.2);
    box-shadow: 0 0 40px rgba(214, 116, 255, 0.08);
    margin-top: 12px;
}

.pricing-card-featured::before {
    background: linear-gradient(135deg, rgba(214, 116, 255, 0.3), rgba(190, 13, 255, 0.1));
}

.pricing-featured-badge {
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    font-family: var(--font-label);
    font-size: 0.6rem;
    font-weight: 600;
    letter-spacing: 0.15em;
    color: var(--on-primary);
    background: linear-gradient(135deg, var(--primary), var(--primary-container));
    padding: 0.35rem 1rem;
    border-radius: var(--radius-full);
    white-space: nowrap;
    z-index: 3;
}

.pricing-icon-wrap {
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-lg);
    background: rgba(214, 116, 255, 0.1);
    margin-bottom: 1rem;
}

.pricing-icon-wrap .material-icons-round {
    color: var(--primary);
    font-size: 1.25rem;
}

.featured-icon {
    background: rgba(214, 116, 255, 0.15);
}

.pricing-card-header {
    margin-bottom: 0.5rem;
}

.pricing-tier-chip {
    font-family: var(--font-label);
    font-size: 0.6rem;
    font-weight: 600;
    letter-spacing: 0.2em;
    color: var(--primary);
    text-transform: uppercase;
}

.pricing-desc {
    font-size: 0.85rem;
    color: var(--on-surface-variant);
    line-height: 1.6;
    margin-bottom: 1.25rem;
    flex-grow: 0;
}

.pricing-price {
    display: flex;
    align-items: baseline;
    gap: 0;
    margin-bottom: 1.5rem;
}

.pricing-currency {
    font-family: var(--font-display);
    font-size: 1.25rem;
    font-weight: 500;
    color: var(--on-surface-variant);
    align-self: flex-start;
    margin-top: 0.5rem;
}

.pricing-amount {
    font-family: var(--font-display);
    font-size: 3.25rem;
    font-weight: 700;
    line-height: 1;
    color: var(--on-surface);
}

.pricing-period-inline {
    font-family: var(--font-label);
    font-size: 0.8rem;
    color: var(--on-surface-variant);
    margin-left: 0.25rem;
}

.pricing-features {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    margin-bottom: 2rem;
    flex-grow: 1;
}

.pricing-features li {
    display: flex;
    align-items: center;
    gap: 0.625rem;
    font-size: 0.825rem;
    color: var(--on-surface);
}

.pricing-features .check {
    font-size: 1rem;
    color: var(--tertiary);
}

.pricing-features .cross {
    font-size: 1rem;
    color: var(--error);
}

/* Discord Badges */
.discord-exclusive {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-family: var(--font-label);
    font-size: 0.7rem;
    font-weight: 600;
    letter-spacing: 0.08em;
    color: #FFD700;
    padding: 0.6rem 1rem;
    background: rgba(255, 215, 0, 0.08);
    border: 1px solid rgba(255, 215, 0, 0.2);
    border-radius: var(--radius-md);
    margin-bottom: 1.25rem;
}

.discord-exclusive .material-icons-round {
    color: #FFD700;
}

.discord-coming-soon {
    font-family: var(--font-label);
    font-size: 0.6rem;
    font-weight: 500;
    letter-spacing: 0.08em;
    color: #FFD700;
    padding: 0.4rem 0.75rem;
    background: rgba(255, 215, 0, 0.06);
    border: 1px solid rgba(255, 215, 0, 0.15);
    border-radius: var(--radius-sm);
    margin-bottom: 1rem;
    text-align: center;
    text-transform: uppercase;
}

/* ===========================
   DETAIL PAGE SPECIFIC
   =========================== */
.detail-hero {
    padding: 8rem 1.5rem 4rem;
    position: relative;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    inset: 0;
    overflow: hidden;
}

.hero-grid {
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(72, 72, 74, 0.06) 1px, transparent 1px),
        linear-gradient(90deg, rgba(72, 72, 74, 0.06) 1px, transparent 1px);
    background-size: 60px 60px;
    mask-image: radial-gradient(ellipse 80% 60% at 50% 50%, black 30%, transparent 80%);
    -webkit-mask-image: radial-gradient(ellipse 80% 60% at 50% 50%, black 30%, transparent 80%);
}

.hero-glow {
    position: absolute;
    border-radius: 50%;
    filter: blur(100px);
    opacity: 0.4;
    animation: glowFloat 8s ease-in-out infinite;
}

.hero-glow-1 {
    width: 500px;
    height: 500px;
    background: var(--primary-container);
    top: 10%;
    left: 20%;
    opacity: 0.15;
}

.hero-glow-2 {
    width: 400px;
    height: 400px;
    background: var(--secondary-dim);
    bottom: 20%;
    right: 15%;
    opacity: 0.08;
    animation-delay: -4s;
}

@keyframes glowFloat {
    0%, 100% { transform: translate(0, 0) scale(1); }
    33% { transform: translate(20px, -30px) scale(1.05); }
    66% { transform: translate(-15px, 20px) scale(0.95); }
}

.detail-hero .hero-glow { opacity: 0.1; }

.detail-hero-inner {
    max-width: 800px;
    margin: 0 auto;
    position: relative;
    z-index: 1;
}

.detail-breadcrumb {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-family: var(--font-label);
    font-size: 0.7rem;
    color: var(--on-surface-variant);
    margin-bottom: 2rem;
}

.detail-breadcrumb a {
    color: var(--primary);
    transition: opacity 0.2s;
}

.detail-breadcrumb a:hover { opacity: 0.8; }

.detail-tier-chip {
    display: inline-block;
    font-family: var(--font-label);
    font-size: 0.65rem;
    font-weight: 600;
    letter-spacing: 0.2em;
    color: var(--primary);
    padding: 0.4rem 1rem;
    background: rgba(214, 116, 255, 0.08);
    border: 1px solid rgba(214, 116, 255, 0.15);
    border-radius: var(--radius-full);
    margin-bottom: 1.25rem;
    text-transform: uppercase;
}

.detail-title {
    font-family: var(--font-display);
    font-size: clamp(2.5rem, 6vw, 3.5rem);
    font-weight: 700;
    line-height: 1.05;
    margin-bottom: 1rem;
}

.detail-subtitle {
    font-size: 1.125rem;
    color: var(--on-surface-variant);
    line-height: 1.7;
    margin-bottom: 2rem;
    max-width: 600px;
}

.detail-price-block {
    display: flex;
    align-items: baseline;
    gap: 0.75rem;
    margin-bottom: 2rem;
}

.detail-price {
    font-family: var(--font-display);
    font-size: 3rem;
    font-weight: 700;
}

.detail-price-period {
    font-family: var(--font-label);
    font-size: 0.85rem;
    color: var(--on-surface-variant);
}

.detail-cta-group {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

/* Detail Features Grid */
.detail-features {
    padding: 5rem 0;
    background: var(--surface-container-lowest);
}

.detail-features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

.detail-feature-card {
    padding: 2rem;
    background: var(--surface-container);
    border-radius: var(--radius-xl);
    transition: all 0.3s ease;
}

.detail-feature-card:hover {
    background: var(--surface-container-high);
    transform: translateY(-3px);
}

.detail-feature-card h3 {
    font-family: var(--font-display);
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: 0.75rem;
    color: var(--on-surface);
}

.detail-feature-card p {
    font-size: 0.875rem;
    color: var(--on-surface-variant);
    line-height: 1.7;
}

.detail-feature-icon {
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-lg);
    background: rgba(214, 116, 255, 0.1);
    margin-bottom: 1rem;
    color: var(--primary);
}

/* Ecosystem Benefits */
.benefits-section {
    padding: 4rem 0;
    background: var(--surface);
}

.benefits-list {
    max-width: 700px;
    margin: 2rem auto 0;
    padding: 0 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.benefit-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1.25rem 1.5rem;
    background: var(--surface-container);
    border-radius: var(--radius-lg);
    transition: all 0.3s ease;
}

.benefit-item:hover {
    background: var(--surface-container-high);
    transform: translateX(4px);
}

.benefit-icon {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-md);
    background: rgba(214, 116, 255, 0.1);
    color: var(--primary);
    flex-shrink: 0;
}

.benefit-text {
    font-size: 0.9rem;
    color: var(--on-surface);
}

.scarcity-banner {
    max-width: 700px;
    margin: 2rem auto 0;
    padding: 1.25rem 1.5rem;
    background: rgba(198, 255, 200, 0.04);
    border: 1px solid rgba(198, 255, 200, 0.1);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-family: var(--font-label);
    font-size: 0.8rem;
    color: var(--tertiary);
}

/* ===========================
   CHECKOUT PAGE
   =========================== */
.checkout-section {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 8rem 1.5rem 4rem;
    position: relative;
}

.checkout-card {
    width: 100%;
    max-width: 480px;
    background: var(--surface-container);
    border-radius: var(--radius-2xl);
    padding: 2.5rem;
    position: relative;
    border: 1px solid rgba(72, 72, 74, 0.15);
    box-shadow: 0 30px 80px rgba(0, 0, 0, 0.4);
}

.checkout-card::before {
    content: '';
    position: absolute;
    inset: -1px;
    border-radius: var(--radius-2xl);
    padding: 1px;
    background: linear-gradient(135deg, rgba(214, 116, 255, 0.15), transparent 60%);
    -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
    mask-composite: exclude;
    pointer-events: none;
}

.checkout-header { text-align: center; margin-bottom: 2rem; }

.checkout-header h1 {
    font-family: var(--font-display);
    font-size: 1.75rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.checkout-header p {
    font-size: 0.85rem;
    color: var(--on-surface-variant);
}

.checkout-product {
    background: var(--surface-container-high);
    border-radius: var(--radius-lg);
    padding: 1.5rem;
    margin-bottom: 2rem;
}

.checkout-product-name {
    font-family: var(--font-display);
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: 0.25rem;
}

.checkout-product-enrollment {
    font-family: var(--font-label);
    font-size: 0.7rem;
    color: var(--tertiary);
    letter-spacing: 0.1em;
    text-transform: uppercase;
}

.checkout-product-price {
    font-family: var(--font-display);
    font-size: 2.5rem;
    font-weight: 700;
    margin-top: 1rem;
    color: var(--on-surface);
}

.checkout-form {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.checkout-input {
    width: 100%;
    padding: 0.875rem 1rem;
    background: var(--surface-container-low);
    border: 1px solid transparent;
    border-radius: var(--radius-md);
    color: var(--on-surface);
    font-family: var(--font-body);
    font-size: 0.875rem;
    outline: none;
    transition: all 0.3s ease;
}

.checkout-input::placeholder { color: var(--outline); }

.checkout-input:focus {
    border-bottom-color: var(--primary);
    box-shadow: 0 2px 0 0 var(--primary);
}

.checkout-input-row { display: flex; gap: 1rem; }
.checkout-input-row .checkout-input { flex: 1; }

.checkout-note {
    font-family: var(--font-label);
    font-size: 0.7rem;
    color: var(--on-surface-variant);
    line-height: 1.6;
    text-align: center;
    margin-top: 1rem;
}

/* ===========================
   FOOTER
   =========================== */
.footer {
    padding: 4rem 0 2rem;
    background: var(--surface-container-lowest);
    border-top: 1px solid rgba(72, 72, 74, 0.1);
    position: relative;
    z-index: 2;
}

.footer-top {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 3rem;
}

.footer-tagline {
    font-size: 0.85rem;
    color: var(--on-surface-variant);
    margin-top: 0.75rem;
}

.footer-links { display: flex; gap: 4rem; }

.footer-col {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.footer-col h4 {
    font-family: var(--font-label);
    font-size: 0.65rem;
    font-weight: 600;
    letter-spacing: 0.15em;
    color: var(--on-surface-variant);
    text-transform: uppercase;
    margin-bottom: 0.25rem;
}

.footer-col a {
    font-size: 0.85rem;
    color: var(--on-surface-variant);
    transition: color 0.2s ease;
}

.footer-col a:hover { color: var(--on-surface); }

.footer-bottom {
    padding-top: 2rem;
    border-top: 1px solid rgba(72, 72, 74, 0.1);
    text-align: center;
}

.footer-bottom p {
    font-family: var(--font-label);
    font-size: 0.65rem;
    color: var(--outline);
    letter-spacing: 0.1em;
}

/* ===========================
   RESPONSIVE
   =========================== */
@media (max-width: 1024px) {
    .hero-layout {
        grid-template-columns: 1fr;
        gap: 3rem;
    }

    .hero-dashboard {
        max-width: 500px;
    }

    .pricing-grid,
    .pricing-grid-3 {
        grid-template-columns: repeat(2, 1fr);
        max-width: 100%;
    }

    .pricing-grid-2 {
        grid-template-columns: repeat(2, 1fr);
        max-width: 100%;
    }
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
        flex-direction: column;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: rgba(14, 14, 15, 0.95);
        backdrop-filter: blur(20px);
        padding: 1.5rem;
        gap: 1rem;
        border-bottom: 1px solid rgba(72, 72, 74, 0.15);
    }

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

    .hero-title {
        font-size: clamp(2rem, 10vw, 3.5rem);
    }

    .pricing-grid,
    .pricing-grid-3,
    .pricing-grid-2 {
        grid-template-columns: 1fr;
        max-width: 400px;
        margin-left: auto;
        margin-right: auto;
    }

    .footer-top {
        flex-direction: column;
        gap: 2rem;
    }

    .footer-links { gap: 3rem; }

    .checkout-input-row { flex-direction: column; }

    .detail-cta-group {
        flex-direction: column;
    }

    .detail-cta-group .btn { width: 100%; }

    .dash-row {
        grid-template-columns: 1fr;
    }

    .hero-cta-group {
        flex-direction: column;
    }

    .hero-cta-group .btn {
        width: 100%;
        justify-content: center;
    }
}

@media (max-width: 480px) {
    .section { padding: 4rem 0; }
    .section-header { margin-bottom: 2.5rem; }
    .detail-features-grid { grid-template-columns: 1fr; }
}