:root {
    --bg-color: #000000;
    --text-color: #E0E0E0;
    --text-secondary: #A0A0A0;
    --accent-color: #00E5FF; /* SystemCyan */
    --accent-glow: rgba(0, 229, 255, 0.4);
    --glass-bg: rgba(10, 10, 10, 0.6);
    --glass-border: rgba(0, 229, 255, 0.3);
    --glass-blur: 8px;
    --card-radius: 16px;
    --font-main: "JetBrains Mono", "Fira Code", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, monospace, sans-serif;

    /* Accents */
    --accent-purple: #D500F9;
    --accent-purple-glow: rgba(213, 0, 249, 0.4);
    --accent-orange: #FF6D00;
    --accent-orange-glow: rgba(255, 109, 0, 0.4);
}

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

body {
    background-color: var(--bg-color);
    background-image:
        linear-gradient(rgba(0, 229, 255, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0, 229, 255, 0.03) 1px, transparent 1px);
    background-size: 40px 40px;
    color: var(--text-color);
    font-family: var(--font-main);
    line-height: 1.6;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    letter-spacing: -0.02em;
    margin-bottom: 1rem;
    color: var(--accent-color);
    text-shadow: 0 0 10px rgba(0, 229, 255, 0.2);
}

h1 { font-size: 3rem; text-transform: uppercase; letter-spacing: 0.05em; }
h2 { font-size: 2rem; border-left: 4px solid var(--accent-color); padding-left: 1rem; }
h3 { font-size: 1.5rem; }

p {
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
    font-size: 1rem;
}

strong {
    color: var(--text-color);
}

a {
    color: var(--accent-color);
    text-decoration: none;
    transition: all 0.2s ease;
    position: relative;
}

a:hover {
    color: #fff;
    text-shadow: 0 0 8px var(--accent-color);
}

/* Layout */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
    width: 100%;
}

main {
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding: 4rem 0;
}

/* Components */
.glass-card {
    background: var(--glass-bg);
    backdrop-filter: blur(var(--glass-blur));
    -webkit-backdrop-filter: blur(var(--glass-blur));
    border: 1px solid var(--glass-border);
    border-radius: var(--card-radius);
    padding: 2rem;
    position: relative;
    overflow: hidden;
    transition: border-color 0.3s ease, box-shadow 0.3s ease;
}

.glass-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--accent-color), transparent);
    opacity: 0.5;
}

.glass-card:hover {
    border-color: var(--accent-color);
    box-shadow: 0 0 15px rgba(0, 229, 255, 0.1);
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 0.8rem 2rem;
    background: var(--accent-color);
    color: #000;
    font-weight: 700;
    font-size: 1rem;
    border: none;
    cursor: pointer;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    transition: transform 0.2s ease, background 0.2s ease, box-shadow 0.2s ease;
    border-radius: 50px;
}

.btn:hover {
    transform: translateY(-2px);
    background: #fff;
    box-shadow: 0 0 20px var(--accent-glow);
}

.btn-outline {
    background: transparent;
    border: 1px solid var(--accent-color);
    color: var(--accent-color);
    border-radius: 50px;
}

.btn-outline:hover {
    background: rgba(0, 229, 255, 0.1);
    color: #fff;
    box-shadow: inset 0 0 0 1px #fff;
}

/* Header/Nav */
header {
    padding: 2rem 0;
    border-bottom: 1px solid rgba(0, 229, 255, 0.1);
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(10px);
    position: sticky;
    top: 0;
    z-index: 100;
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-weight: 800;
    font-size: 1.25rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: #fff;
}

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

.nav-link {
    font-weight: 500;
    color: var(--text-secondary);
    text-transform: uppercase;
    font-size: 0.9rem;
    letter-spacing: 0.05em;
    transition: color 0.2s ease;
}

.nav-link:hover, .nav-link.active {
    color: var(--accent-color);
    text-shadow: 0 0 5px var(--accent-glow);
}

.nav-link.active {
    border-bottom: 2px solid var(--accent-color);
}

/* Footer */
footer {
    padding: 2rem 0;
    text-align: center;
    color: var(--text-secondary);
    font-size: 0.8rem;
    border-top: 1px solid rgba(0, 229, 255, 0.1);
    margin-top: auto;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

/* Utilities */
.text-center { text-align: center; }
.mb-2 { margin-bottom: 0.5rem; }
.mb-4 { margin-bottom: 2rem; }
.mt-4 { margin-top: 2rem; }

/* Grid */
.grid-2 {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
}

@media (min-width: 768px) {
    .grid-2 {
        grid-template-columns: 1fr 1fr;
    }
}

/* Sidebar for Docs */
.sidebar a.active {
    color: var(--accent-color);
    border-left: 2px solid var(--accent-color);
    padding-left: 1rem; /* Indent active */
    border-bottom: none;
    background: linear-gradient(90deg, rgba(0, 229, 255, 0.1), transparent);
}

.sidebar a {
    padding: 0.5rem;
    border-bottom: none;
    transition: all 0.2s ease;
}

.sidebar a:hover {
    padding-left: 1rem;
    color: #fff;
}

/* List Styling */
ul, ol {
    margin-left: 1.5rem;
    margin-bottom: 1.5rem;
}

li {
    margin-bottom: 0.5rem;
}

/* Code */
code {
    background: rgba(0, 229, 255, 0.1);
    color: var(--accent-color);
    padding: 0.2rem 0.4rem;
    border-radius: 4px;
    font-family: "Fira Code", monospace;
    font-size: 0.9em;
}

/* Forms */
.form-card {
    max-width: 400px;
    margin: 0 auto;
}

.form-group {
    margin-bottom: 1.5rem;
    text-align: left;
}

label {
    display: block;
    margin-bottom: 0.5rem;
    color: var(--text-secondary);
    font-size: 0.9rem;
}

input[type="text"],
input[type="email"],
input[type="password"] {
    width: 100%;
    padding: 1rem 1.2rem;
    border-radius: var(--card-radius);
    border: 1px solid rgba(0, 229, 255, 0.2);
    background: rgba(10, 10, 10, 0.6);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    color: var(--text-color);
    font-family: var(--font-main);
    font-size: 1rem;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: inset 0 2px 4px rgba(0, 0, 0, 0.2);
}

input:focus {
    outline: none;
    border-color: var(--accent-color);
    background: rgba(0, 229, 255, 0.05);
    box-shadow: 0 0 0 4px var(--accent-glow), inset 0 2px 4px rgba(0, 0, 0, 0.2);
    transform: translateY(-1px);
}

input::placeholder {
    color: rgba(255, 255, 255, 0.3);
}

.error-message {
    color: #ff4d4d;
    font-size: 0.9rem;
    margin-top: 0.5rem;
    display: none;
}

.auth-links {
    margin-top: 1.5rem;
    font-size: 0.9rem;
}

.checkbox-group {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}
input[type="checkbox"] {
    width: auto;
    cursor: pointer;
}

.input-wrapper {
    position: relative;
    width: 100%;
}

.password-toggle {
    position: absolute;
    right: 12px;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    padding: 4px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: color 0.2s ease;
}

.password-toggle:hover {
    color: var(--text-color);
}

/* Docs Layout */
.docs-layout {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
    align-items: start;
}

@media (min-width: 768px) {
    .docs-layout {
        grid-template-columns: 250px 1fr;
    }
}

.sidebar {
    position: sticky;
    top: 6rem;
}

.doc-content h1 { margin-bottom: 1.5rem; }
.doc-content h2 { margin-top: 2rem; margin-bottom: 1rem; }
.doc-content p { margin-bottom: 1rem; }

/* Getting Started Steps */
.step-number {
    display: inline-block;
    width: 30px;
    height: 30px;
    background: var(--accent-color);
    color: #000;
    border-radius: 50%;
    text-align: center;
    line-height: 30px;
    font-weight: 700;
    margin-right: 0.5rem;
}

/* Stream States */
.state-card {
    border: 1px solid var(--glass-border);
    padding: 1.5rem;
    margin-bottom: 1.5rem;
    border-radius: var(--card-radius);
    background: linear-gradient(to bottom, rgba(0, 229, 255, 0.05), transparent);
}

/* Gamification */
.archetype-card {
    border: 1px solid var(--glass-border);
    padding: 1.5rem;
    margin-bottom: 1.5rem;
    border-radius: var(--card-radius);
    background: linear-gradient(135deg, rgba(0,0,0,0), rgba(0, 229, 255, 0.05));
}

.stat-bar {
    height: 8px;
    background: rgba(255,255,255,0.1);
    border-radius: 4px;
    overflow: hidden;
    margin-top: 0.5rem;
}

.stat-fill {
    height: 100%;
    background: var(--accent-color);
    width: 0%;
    transition: width 1s ease;
}

/* Accent Classes */

/* Purple Accent */
.accent-purple.glass-card,
.accent-purple.archetype-card {
    border-color: rgba(213, 0, 249, 0.3);
}

.accent-purple h3 {
    color: var(--accent-purple);
    text-shadow: 0 0 10px rgba(213, 0, 249, 0.2);
}

.accent-purple.glass-card:hover,
.accent-purple.archetype-card:hover {
    border-color: var(--accent-purple);
    box-shadow: 0 0 15px rgba(213, 0, 249, 0.1);
}

.accent-purple.glass-card::before {
    background: linear-gradient(90deg, transparent, var(--accent-purple), transparent);
}

.accent-purple.archetype-card {
    background: linear-gradient(135deg, rgba(0,0,0,0), rgba(213, 0, 249, 0.05));
}

/* Orange Accent */
.accent-orange.glass-card,
.accent-orange.archetype-card {
    border-color: rgba(255, 109, 0, 0.3);
}

.accent-orange h3 {
    color: var(--accent-orange);
    text-shadow: 0 0 10px rgba(255, 109, 0, 0.2);
}

.accent-orange.glass-card:hover,
.accent-orange.archetype-card:hover {
    border-color: var(--accent-orange);
    box-shadow: 0 0 15px rgba(255, 109, 0, 0.1);
}

.accent-orange.glass-card::before {
    background: linear-gradient(90deg, transparent, var(--accent-orange), transparent);
}

.accent-orange.archetype-card {
    background: linear-gradient(135deg, rgba(0,0,0,0), rgba(255, 109, 0, 0.05));
}

/* Cyan Accent (Explicit) */
.accent-cyan.glass-card,
.accent-cyan.archetype-card {
    border-color: var(--glass-border);
}

.accent-cyan h3 {
    color: var(--accent-color);
}

.accent-cyan.glass-card:hover,
.accent-cyan.archetype-card:hover {
    border-color: var(--accent-color);
    box-shadow: 0 0 15px rgba(0, 229, 255, 0.1);
}

.accent-cyan.glass-card::before {
    background: linear-gradient(90deg, transparent, var(--accent-color), transparent);
}

.accent-cyan.archetype-card {
    background: linear-gradient(135deg, rgba(0,0,0,0), rgba(0, 229, 255, 0.05));
}

/* Archetype Hover */
.archetype-card {
    transition: all 0.3s ease;
}

.archetype-card:hover {
    transform: translateY(-2px);
}