:root {
    --bg-color: #09090b;
    --text-color: #f8fafc;
    --text-muted: #a1a1aa;
    --accent: #1793d1;
    --accent-hover: #0f7dae;
    --accent-glow: rgba(23, 147, 209, 0.4);
    --glass-bg: rgba(24, 24, 27, 0.6);
    --glass-bg-hover: rgba(39, 39, 42, 0.8);
    --glass-border: rgba(255, 255, 255, 0.08);
    --glass-border-hover: rgba(255, 255, 255, 0.15);
    --terminal-bg: #000000;
    --spotlight: rgba(255, 255, 255, 0.04);
    
    --card-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06), 0 20px 40px -10px rgba(0, 0, 0, 0.5);
    --island-shadow: 0 4px 20px rgba(0, 0, 0, 0.4);
}

[data-theme="light"] {
    --bg-color: #f8fafc;
    --text-color: #0f172a;
    --text-muted: #64748b;
    --accent-glow: rgba(23, 147, 209, 0.2);
    --glass-bg: rgba(255, 255, 255, 0.75);
    --glass-bg-hover: rgba(255, 255, 255, 0.95);
    --glass-border: rgba(255, 255, 255, 1);
    --glass-border-hover: rgba(23, 147, 209, 0.3);
    --terminal-bg: #0f172a;
    --spotlight: rgba(0, 0, 0, 0.02);
    --card-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.05), 0 10px 25px -5px rgba(0, 0, 0, 0.1);
    --island-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
}

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

body {
    font-family: 'Outfit', sans-serif;
    background-color: var(--bg-color);
    color: var(--text-color);
    line-height: 1.7;
    overflow-x: hidden;
    position: relative;
    min-height: 100vh;
    transition: background-color 0.5s ease, color 0.5s ease;
}

/* Noise Overlay */
.noise-overlay {
    position: fixed;
    top: 0; left: 0; width: 100vw; height: 100vh;
    pointer-events: none;
    z-index: 9999;
    opacity: 0.04;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noiseFilter'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.65' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noiseFilter)'/%3E%3C/svg%3E");
}

[data-theme="light"] .noise-overlay {
    opacity: 0.03;
}

/* Scroll Progress Bar */
.scroll-progress {
    position: fixed;
    top: 0; left: 0; width: 0%; height: 3px;
    background: linear-gradient(90deg, #1793d1, #8b5cf6);
    z-index: 10000;
    box-shadow: 0 0 10px var(--accent-glow);
    transition: width 0.1s ease-out;
}

/* Floating Island Navigation */
.floating-island {
    position: fixed;
    top: 2rem;
    left: 50%;
    transform: translateX(-50%);
    background: var(--glass-bg);
    backdrop-filter: blur(24px);
    -webkit-backdrop-filter: blur(24px);
    border: 1px solid var(--glass-border);
    border-radius: 100px;
    padding: 0.5rem 1rem;
    display: flex;
    align-items: center;
    gap: 1rem;
    z-index: 100;
    box-shadow: var(--island-shadow);
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    animation: slideDown 0.8s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

@keyframes slideDown {
    from { transform: translate(-50%, -150%); opacity: 0; }
    to { transform: translate(-50%, 0); opacity: 1; }
}

.floating-island:hover {
    box-shadow: 0 8px 30px rgba(0,0,0,0.5), 0 0 20px var(--accent-glow);
    border-color: rgba(255,255,255,0.2);
}

.island-link {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--text-color);
    text-decoration: none;
    font-weight: 600;
    font-size: 0.95rem;
    padding: 0.4rem 0.8rem;
    border-radius: 100px;
    transition: background 0.3s ease;
}

.island-link:hover {
    background: rgba(255, 255, 255, 0.1);
}

[data-theme="light"] .island-link:hover {
    background: rgba(0, 0, 0, 0.05);
}

.island-link svg {
    width: 20px;
    height: 20px;
}

.island-divider {
    width: 1px;
    height: 24px;
    background: var(--glass-border);
}

.theme-toggle {
    background: transparent;
    border: none;
    color: var(--text-color);
    padding: 0.5rem;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: transform 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275), background 0.3s ease;
}

.theme-toggle:hover {
    transform: rotate(15deg) scale(1.1);
    background: rgba(255, 255, 255, 0.1);
}

[data-theme="light"] .theme-toggle:hover {
    background: rgba(0, 0, 0, 0.05);
}

.theme-toggle svg {
    width: 22px;
    height: 22px;
    fill: currentColor;
    transition: transform 0.3s ease;
}

/* Dynamic Background Elements */
.bg-gradient {
    position: fixed;
    top: 0; left: 0; width: 100%; height: 100%;
    background: 
        radial-gradient(circle at 15% 50%, rgba(23, 147, 209, 0.06) 0%, transparent 50%),
        radial-gradient(circle at 85% 30%, rgba(139, 92, 246, 0.04) 0%, transparent 50%);
    z-index: -2;
    pointer-events: none;
}

.glow-orb {
    position: fixed;
    border-radius: 50%;
    filter: blur(120px);
    z-index: -1;
    pointer-events: none;
    opacity: 0.6;
}

.orb-1 {
    width: 50vw; height: 50vw;
    max-width: 600px; max-height: 600px;
    background: var(--accent);
    top: -10%; left: -10%;
    animation: float 25s ease-in-out infinite alternate;
}

.orb-2 {
    width: 40vw; height: 40vw;
    max-width: 500px; max-height: 500px;
    background: #8b5cf6;
    bottom: -10%; right: -10%;
    animation: float 30s ease-in-out infinite alternate-reverse;
}

[data-theme="light"] .glow-orb {
    opacity: 0.3;
}

.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 8rem 2rem 4rem;
    position: relative;
    z-index: 1;
}

/* Hero Section */
header {
    text-align: center;
    margin-bottom: 6rem;
}

.logo-wrapper {
    margin-bottom: 2rem;
}

.arch-logo {
    width: 110px;
    height: 110px;
    color: var(--accent);
    filter: drop-shadow(0 0 25px var(--accent-glow));
    animation: pulseLogo 5s infinite ease-in-out;
}

h1 {
    font-size: clamp(3rem, 7vw, 5.5rem);
    font-weight: 800;
    margin-bottom: 1.5rem;
    letter-spacing: -2.5px;
    line-height: 1.1;
}

.gradient-text {
    background: linear-gradient(135deg, var(--text-color) 0%, #a1a1aa 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

[data-theme="light"] .gradient-text {
    background: linear-gradient(135deg, #0f172a 0%, #475569 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.subtitle {
    font-size: clamp(1.1rem, 2vw, 1.4rem);
    color: var(--text-muted);
    max-width: 700px;
    margin: 0 auto;
    font-weight: 400;
}

/* Grid Layout for Cards */
.grid-container {
    display: flex;
    flex-direction: column;
    gap: 4rem;
    max-width: 1050px;
    margin: 0 auto;
}

/* Card Styling */
.card {
    background: var(--glass-bg);
    backdrop-filter: blur(24px);
    -webkit-backdrop-filter: blur(24px);
    border: 1px solid var(--glass-border);
    border-top: 1px solid rgba(255, 255, 255, 0.15); /* Brighter top edge for refraction */
    border-radius: 32px; /* Squircle-like soft corners */
    padding: 3.5rem;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3.5rem;
    align-items: center;
    box-shadow: var(--card-shadow);
    transition: all 0.5s cubic-bezier(0.2, 0.8, 0.2, 1);
    opacity: 0;
    transform: translateY(40px) scale(0.98);
    position: relative;
    overflow: hidden;
}

[data-theme="light"] .card {
    border-top: 1px solid rgba(255, 255, 255, 1);
}

/* Spotlight Effect */
.card::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0; bottom: 0;
    background: radial-gradient(1000px circle at var(--mouse-x, 50%) var(--mouse-y, 50%), var(--spotlight), transparent 40%);
    z-index: 0;
    opacity: 0;
    transition: opacity 0.5s;
    pointer-events: none;
}

.card:hover::before {
    opacity: 1;
}

.card-content {
    position: relative;
    z-index: 1;
}

.card-terminal {
    position: relative;
    z-index: 1;
}

.card.visible {
    opacity: 1;
    transform: translateY(0) scale(1);
}

.card:hover {
    transform: translateY(-8px);
    box-shadow: 0 40px 80px rgba(0,0,0,0.5), 0 0 50px rgba(23, 147, 209, 0.1);
    border-color: var(--glass-border-hover);
    background: var(--glass-bg-hover);
}

[data-theme="light"] .card:hover {
    box-shadow: 0 20px 40px rgba(0,0,0,0.1), 0 0 30px rgba(23, 147, 209, 0.1);
}

h2 {
    font-size: 2rem;
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
    gap: 1rem;
    font-weight: 600;
    letter-spacing: -0.5px;
}

h2::before {
    content: '';
    display: inline-block;
    width: 12px;
    height: 12px;
    background: var(--accent);
    border-radius: 50%;
    box-shadow: 0 0 15px var(--accent);
}

.card p {
    color: var(--text-muted);
    margin-bottom: 2rem;
    font-size: 1.1rem;
}

/* Terminal Code Block */
.code-wrapper {
    position: relative;
    margin: 1rem 0;
}

.code-block {
    background: var(--terminal-bg);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 20px;
    padding: 3.5rem 1.8rem 2rem 1.8rem;
    font-family: 'JetBrains Mono', monospace;
    position: relative;
    overflow: hidden;
    box-shadow: inset 0 2px 20px rgba(0,0,0,0.8);
}

[data-theme="light"] .code-block {
    border: 1px solid rgba(0,0,0,0.05);
    box-shadow: inset 0 2px 10px rgba(0,0,0,0.1);
}

.code-block::before {
    content: attr(data-label);
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.03);
    padding: 0.8rem 1.5rem;
    font-size: 0.8rem;
    color: #6b7280;
    font-family: 'Outfit', sans-serif;
    text-transform: uppercase;
    letter-spacing: 2.5px;
    font-weight: 600;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.code-block code {
    color: #38bdf8;
    font-size: 0.95rem;
    display: block;
    word-break: break-all;
    line-height: 1.7;
}

/* Copy Button */
.copy-btn {
    position: absolute;
    top: 0.6rem;
    right: 1rem;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255,255,255,0.08);
    color: #9ca3af;
    cursor: pointer;
    padding: 0.5rem;
    border-radius: 10px;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    z-index: 10;
    display: flex;
    align-items: center;
    justify-content: center;
}

.copy-btn:hover {
    color: #fff;
    background: var(--accent);
    border-color: var(--accent);
    transform: scale(1.05);
    box-shadow: 0 4px 12px rgba(23, 147, 209, 0.3);
}

.copy-btn svg {
    width: 18px;
    height: 18px;
}

.check-icon {
    color: #10b981;
    animation: drawCheck 0.3s ease-in-out forwards;
}

@keyframes drawCheck {
    from { stroke-dasharray: 24; stroke-dashoffset: 24; }
    to { stroke-dasharray: 24; stroke-dashoffset: 0; }
}

/* Lists */
.feature-list {
    list-style-type: none;
    margin-top: auto;
}

.feature-list li {
    margin-bottom: 1.2rem;
    position: relative;
    padding-left: 2.2rem;
    font-size: 1.05rem;
    color: var(--text-muted);
    transition: transform 0.2s ease, color 0.2s ease;
}

.feature-list li:hover {
    transform: translateX(6px);
    color: var(--text-color);
}

.feature-list li strong {
    color: var(--text-color);
    font-weight: 600;
}

.feature-list li::before {
    content: '→';
    position: absolute;
    left: 0;
    color: var(--accent);
    font-weight: 800;
}

code {
    font-family: 'JetBrains Mono', monospace;
    background: rgba(23, 147, 209, 0.12);
    padding: 0.2rem 0.5rem;
    border-radius: 6px;
    font-size: 0.85em;
    color: var(--accent);
    font-weight: 700;
}

[data-theme="light"] code {
    background: rgba(23, 147, 209, 0.08);
}

footer {
    text-align: center;
    margin-top: 10rem;
    padding-top: 3rem;
    border-top: 1px solid var(--glass-border);
    color: var(--text-muted);
    font-size: 0.95rem;
}

.disclaimer {
    margin-top: 2rem;
    font-size: 0.85rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
    line-height: 1.6;
    opacity: 0.6;
}

/* Animations */
@keyframes float {
    0% { transform: translate(0, 0) rotate(0deg); }
    100% { transform: translate(50px, 30px) rotate(5deg); }
}

@keyframes pulseLogo {
    0% { transform: scale(1); filter: drop-shadow(0 0 25px var(--accent-glow)); }
    50% { transform: scale(1.05); filter: drop-shadow(0 0 45px var(--accent)); }
    100% { transform: scale(1); filter: drop-shadow(0 0 25px var(--accent-glow)); }
}

/* Intersection Animations */
.fade-in {
    opacity: 0;
    transform: translateY(30px) scale(0.95);
    transition: opacity 1s cubic-bezier(0.16, 1, 0.3, 1), transform 1s cubic-bezier(0.16, 1, 0.3, 1);
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0) scale(1);
}

/* Media Queries for Responsiveness */
@media (max-width: 900px) {
    .card {
        grid-template-columns: 1fr;
        padding: 3rem;
    }
}

@media (max-width: 768px) {
    .container {
        padding: 6rem 1.2rem 3rem;
    }
    
    header {
        margin-bottom: 4rem;
    }
    
    .floating-island {
        top: 1.5rem;
        padding: 0.4rem 0.8rem;
    }
    
    .island-text {
        display: none; /* Hide text on mobile to save space */
    }
    
    h1 {
        font-size: 2.8rem;
    }
    
    .card {
        padding: 2rem;
        gap: 2rem;
        border-radius: 24px;
    }
    
    h2 {
        font-size: 1.6rem;
    }
    
    .code-block {
        padding: 3rem 1.2rem 1.5rem;
    }
}