:root {
    --bg-void: #07070a;
    --bg-primary: #0c0c12;
    --bg-elevated: #12121c;
    --bg-card: rgba(18, 18, 28, 0.7);
    --accent: #ff6b35;
    --accent-glow: rgba(255, 107, 53, 0.4);
    --accent-soft: #ff8c5a;
    --text-primary: #f4f4f7;
    --text-secondary: #8a8a9a;
    --text-muted: #5a5a6a;
    --border: rgba(255, 255, 255, 0.06);
    --border-accent: rgba(255, 107, 53, 0.3);
    --success: #2dd4bf;
    --gradient-hero: linear-gradient(135deg, var(--bg-void) 0%, #0d0d18 50%, #0a0a14 100%);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'DM Sans', sans-serif;
    background: var(--bg-void);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

/* Typography */
h1, h2, h3, h4 {
    font-family: 'Syne', sans-serif;
    font-weight: 700;
    letter-spacing: -0.02em;
    line-height: 1.1;
}

/* Navigation */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 20px 40px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: all 0.4s ease;
}

.nav.scrolled {
    background: rgba(7, 7, 10, 0.85);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border);
    padding: 16px 40px;
}

.nav-logo {
    font-family: 'Syne', sans-serif;
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--accent);
    text-decoration: none;
    letter-spacing: -0.03em;
}

.nav-links {
    display: flex;
    gap: 40px;
    align-items: center;
}

.nav-links a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 500;
    transition: color 0.3s;
}

.nav-links a:hover {
    color: var(--text-primary);
}

.nav-cta {
    background: var(--accent);
    color: white !important;
    padding: 12px 28px;
    border-radius: 100px;
    font-weight: 600;
    transition: all 0.3s;
}

.nav-cta:hover {
    background: var(--accent-soft);
    transform: translateY(-2px);
    box-shadow: 0 8px 30px var(--accent-glow);
}

/* Mobile Menu */
.nav-hamburger {
    display: none;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    width: 44px;
    height: 44px;
    background: transparent;
    border: none;
    cursor: pointer;
    z-index: 1001;
    padding: 0;
}

.nav-hamburger span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--text-primary);
    border-radius: 2px;
    transition: all 0.3s ease;
}

.nav-hamburger span:nth-child(1) { margin-bottom: 6px; }
.nav-hamburger span:nth-child(2) { margin-bottom: 6px; }

.nav-hamburger.active span:nth-child(1) { transform: rotate(45deg) translate(6px, 6px); }
.nav-hamburger.active span:nth-child(2) { opacity: 0; transform: translateX(-10px); }
.nav-hamburger.active span:nth-child(3) { transform: rotate(-45deg) translate(6px, -6px); }

.mobile-menu {
    display: none;
    position: fixed;
    top: 0;
    right: 0;
    width: 100%;
    max-width: 320px;
    height: 100vh;
    background: var(--bg-elevated);
    border-left: 1px solid var(--border);
    padding: 100px 32px 40px;
    transform: translateX(100%);
    transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    z-index: 999;
    overflow-y: auto;
}

.mobile-menu.open { transform: translateX(0); }

.mobile-menu-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(4px);
    opacity: 0;
    transition: opacity 0.4s ease;
    z-index: 998;
}

.mobile-menu-overlay.open { opacity: 1; }

.mobile-menu a {
    display: block;
    color: var(--text-primary);
    text-decoration: none;
    font-size: 1.25rem;
    font-weight: 500;
    padding: 16px 0;
    border-bottom: 1px solid var(--border);
    transition: color 0.3s, padding-left 0.3s;
}

.mobile-menu a:hover {
    color: var(--accent);
    padding-left: 8px;
}

.mobile-menu a:last-child { border-bottom: none; }

.mobile-menu .nav-cta {
    display: inline-block;
    margin-top: 24px;
    padding: 16px 32px;
    text-align: center;
    width: 100%;
}

.mobile-menu-section { padding: 8px 0; }

.mobile-menu-label {
    display: block;
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    padding: 16px 0 8px;
}

.mobile-menu-section a {
    font-size: 1rem;
    padding: 12px 0 12px 12px;
}

body.menu-open { overflow: hidden; }

/* Hero Section */
.hero {
    min-height: 50vh;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient-hero);
    overflow: hidden;
    padding-top: 100px;
    padding-bottom: 40px;
}

.hero-gradient-orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(100px);
    opacity: 0.4;
    animation: float 20s ease-in-out infinite;
}

.hero-gradient-orb.orange {
    width: 600px;
    height: 600px;
    background: var(--accent);
    top: -200px;
    right: -100px;
    opacity: 0.15;
}

.hero-gradient-orb.purple {
    width: 400px;
    height: 400px;
    background: #6366f1;
    bottom: -100px;
    left: -50px;
    opacity: 0.1;
    animation-delay: -10s;
}

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

.hero-content {
    position: relative;
    z-index: 10;
    text-align: center;
    max-width: 900px;
    padding: 0 40px;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    border-radius: 100px;
    border: 1px solid var(--border-accent);
    background: rgba(255, 107, 53, 0.08);
    color: var(--accent);
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 24px;
}

.hero h1 {
    font-size: clamp(2.5rem, 5vw, 4rem);
    margin-bottom: 20px;
}

.hero h1 span {
    background: linear-gradient(135deg, var(--accent), var(--accent-soft));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.15rem;
    color: var(--text-secondary);
    max-width: 650px;
    margin: 0 auto;
    line-height: 1.7;
}

/* Tool Section */
.tool-section {
    max-width: 800px;
    margin: -40px auto 60px;
    padding: 0 24px;
    position: relative;
    z-index: 20;
}

.tool-card {
    background: var(--bg-elevated);
    border: 1px solid var(--border);
    border-radius: 20px;
    padding: 40px;
}

.tool-input-group {
    display: flex;
    gap: 12px;
    margin-bottom: 16px;
}

.tool-input {
    flex: 1;
    padding: 16px 20px;
    background: var(--bg-primary);
    border: 1px solid var(--border);
    border-radius: 12px;
    color: var(--text-primary);
    font-family: 'DM Sans', sans-serif;
    font-size: 1rem;
    outline: none;
    transition: border-color 0.3s;
}

.tool-input::placeholder {
    color: var(--text-muted);
}

.tool-input:focus {
    border-color: var(--accent);
}

.tool-submit {
    padding: 16px 32px;
    background: var(--accent);
    color: white;
    border: none;
    border-radius: 12px;
    font-family: 'DM Sans', sans-serif;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
    white-space: nowrap;
}

.tool-submit:hover:not(:disabled) {
    background: var(--accent-soft);
    transform: translateY(-1px);
    box-shadow: 0 6px 24px var(--accent-glow);
}

.tool-submit:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

.tool-hint {
    font-size: 0.85rem;
    color: var(--text-muted);
}

.tool-error {
    margin-top: 16px;
    padding: 12px 16px;
    background: rgba(239, 68, 68, 0.1);
    border: 1px solid rgba(239, 68, 68, 0.3);
    border-radius: 10px;
    color: #ef4444;
    font-size: 0.9rem;
    display: none;
}

.tool-error.visible { display: block; }

/* Loading State */
.tool-loading {
    display: none;
    text-align: center;
    padding: 40px 0;
}

.tool-loading.visible { display: block; }

.tool-loading-spinner {
    width: 40px;
    height: 40px;
    border: 3px solid var(--border);
    border-top-color: var(--accent);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
    margin: 0 auto 16px;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

.tool-loading-text {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

/* Results */
.tool-results {
    display: none;
    margin-top: 32px;
}

.tool-results.visible { display: block; }

.result-header {
    font-family: 'Syne', sans-serif;
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 20px;
    color: var(--text-secondary);
}

.result-header span {
    color: var(--accent);
}

/* Subreddit Cards */
.subreddit-result {
    padding: 20px 24px;
    background: var(--bg-primary);
    border: 1px solid var(--border);
    border-radius: 14px;
    margin-bottom: 12px;
    transition: border-color 0.3s;
}

.subreddit-result:hover {
    border-color: var(--border-accent);
}

.subreddit-result-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 8px;
    flex-wrap: wrap;
    gap: 8px;
}

.subreddit-result-name {
    font-family: 'Syne', sans-serif;
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--accent);
}

.subreddit-result-name a {
    color: var(--accent);
    text-decoration: none;
    transition: color 0.3s;
}

.subreddit-result-name a:hover {
    color: var(--accent-soft);
}

.subreddit-result-members {
    font-size: 0.8rem;
    color: var(--text-muted);
    background: rgba(255, 255, 255, 0.04);
    padding: 4px 10px;
    border-radius: 100px;
}

.subreddit-result-desc {
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.6;
    margin-bottom: 10px;
}

.subreddit-result-relevance {
    color: var(--text-primary);
    font-size: 0.9rem;
    font-weight: 500;
    margin-bottom: 10px;
}

.subreddit-result-tags {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.subreddit-result-tag {
    font-size: 0.75rem;
    padding: 3px 10px;
    border-radius: 100px;
    background: rgba(255, 107, 53, 0.08);
    color: var(--accent-soft);
    border: 1px solid rgba(255, 107, 53, 0.15);
}

/* Search Tips */
.result-tips {
    margin-top: 24px;
    padding: 20px 24px;
    background: rgba(45, 212, 191, 0.05);
    border: 1px solid rgba(45, 212, 191, 0.15);
    border-radius: 14px;
}

.result-tips-title {
    font-family: 'Syne', sans-serif;
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--success);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 12px;
}

.result-tips ul {
    list-style: none;
    padding: 0;
}

.result-tips li {
    padding: 6px 0 6px 20px;
    position: relative;
    color: var(--text-secondary);
    font-size: 0.9rem;
    line-height: 1.6;
}

.result-tips li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 14px;
    width: 6px;
    height: 6px;
    background: var(--success);
    border-radius: 50%;
}

/* CTA Banner */
.cta-banner {
    max-width: 800px;
    margin: 0 auto 60px;
    padding: 0 24px;
}

.cta-banner-inner {
    background: linear-gradient(135deg, var(--bg-elevated), rgba(255, 107, 53, 0.08));
    border: 1px solid var(--border-accent);
    border-radius: 20px;
    padding: 40px;
    text-align: center;
}

.cta-banner h2 {
    font-size: 1.5rem;
    margin-bottom: 12px;
}

.cta-banner p {
    color: var(--text-secondary);
    margin-bottom: 24px;
    max-width: 500px;
    margin-left: auto;
    margin-right: auto;
}

.cta-banner .btn-primary {
    display: inline-block;
    padding: 14px 32px;
    background: var(--accent);
    color: white;
    text-decoration: none;
    border-radius: 100px;
    font-weight: 600;
    transition: all 0.3s;
}

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

/* Article / SEO Content Section */
.article-content {
    max-width: 800px;
    margin: 0 auto 60px;
    padding: 0 24px;
}

.article-content h2 {
    font-size: 1.75rem;
    margin-top: 48px;
    margin-bottom: 16px;
}

.article-content h3 {
    font-size: 1.25rem;
    margin-top: 32px;
    margin-bottom: 12px;
}

.article-content p {
    color: var(--text-secondary);
    margin-bottom: 16px;
    line-height: 1.8;
}

.article-content ul, .article-content ol {
    color: var(--text-secondary);
    margin-bottom: 16px;
    padding-left: 24px;
    line-height: 1.8;
}

.article-content li {
    margin-bottom: 8px;
}

.article-content strong {
    color: var(--text-primary);
}

/* FAQ */
.faq-section {
    max-width: 800px;
    margin: 0 auto 60px;
    padding: 0 24px;
}

.faq-section h2 {
    font-size: 1.75rem;
    margin-bottom: 24px;
    text-align: center;
}

.faq-item {
    border: 1px solid var(--border);
    border-radius: 12px;
    margin-bottom: 12px;
    overflow: hidden;
    transition: border-color 0.3s;
}

.faq-item:hover { border-color: var(--border-accent); }

.faq-question {
    width: 100%;
    padding: 20px 24px;
    background: var(--bg-elevated);
    border: none;
    color: var(--text-primary);
    font-family: 'DM Sans', sans-serif;
    font-size: 1rem;
    font-weight: 600;
    text-align: left;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 16px;
}

.faq-question::after {
    content: '+';
    font-size: 1.25rem;
    color: var(--accent);
    flex-shrink: 0;
    transition: transform 0.3s;
}

.faq-item.open .faq-question::after {
    content: '-';
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s ease, padding 0.4s ease;
}

.faq-item.open .faq-answer {
    max-height: 500px;
    padding: 0 24px 20px;
}

.faq-answer p {
    color: var(--text-secondary);
    line-height: 1.7;
}

/* Footer */
.footer {
    border-top: 1px solid var(--border);
    padding: 60px 40px 40px;
    background: var(--bg-primary);
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 40px;
}

.footer-logo {
    font-family: 'Syne', sans-serif;
    font-size: 1.25rem;
    font-weight: 800;
    color: var(--accent);
    margin-bottom: 12px;
}

.footer-copy {
    color: var(--text-muted);
    font-size: 0.85rem;
}

.footer-section-title {
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--text-muted);
    margin-bottom: 16px;
    font-family: 'DM Sans', sans-serif;
}

.footer-section a {
    display: block;
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.9rem;
    padding: 4px 0;
    transition: color 0.3s;
}

.footer-section a:hover { color: var(--text-primary); }

/* Reveal animations */
.reveal {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

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

/* Responsive */
@media (max-width: 768px) {
    .nav { padding: 16px 20px; }
    .nav-links { display: none; }
    .nav-hamburger { display: flex; }
    .mobile-menu, .mobile-menu-overlay { display: block; }

    .hero { min-height: 40vh; padding-top: 80px; }
    .hero-content { padding: 0 20px; }
    .hero h1 { font-size: 2rem; }

    .tool-section { padding: 0 16px; margin-top: -20px; }
    .tool-card { padding: 24px; }
    .tool-input-group { flex-direction: column; }

    .result-thread-meta { flex-direction: column; gap: 4px; }

    .cta-banner { padding: 0 16px; }
    .cta-banner-inner { padding: 28px 20px; }

    .article-content { padding: 0 16px; }
    .faq-section { padding: 0 16px; }

    .footer { padding: 40px 20px; }
    .footer-content {
        grid-template-columns: 1fr 1fr;
        gap: 32px;
    }
}

@media (max-width: 480px) {
    .footer-content { grid-template-columns: 1fr; }
}