/* =============================
   MetaForge — SEO Tag Generator
   DARTH VADER EDITION
   Deep black / Imperial red / Gunmetal steel
   ============================= */

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

:root {
    --bg-primary: #050505;
    --bg-secondary: #0c0c0c;
    --bg-card: rgba(12, 12, 12, 0.85);
    --bg-panel: rgba(8, 8, 8, 0.95);
    --border: rgba(200, 30, 30, 0.12);
    --border-hover: rgba(200, 30, 30, 0.35);
    --text-primary: #d4d4d4;
    --text-secondary: #707070;
    --text-muted: #444444;
    --accent: #c41e1e;
    --accent-light: #e03030;
    --accent-dark: #8b1515;
    --steel: #2a2a2a;
    --steel-light: #383838;
    --green: #22c55e;
    --red: #c41e1e;
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-mono: 'JetBrains Mono', 'Fira Code', monospace;
    --radius: 8px;
    --radius-sm: 6px;
    --transition: 0.2s ease;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-sans);
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
    overflow-x: hidden;
}

.bg-grid {
    position: fixed;
    inset: 0;
    background-image:
        linear-gradient(rgba(200, 30, 30, 0.02) 1px, transparent 1px),
        linear-gradient(90deg, rgba(200, 30, 30, 0.02) 1px, transparent 1px);
    background-size: 80px 80px;
    pointer-events: none;
    z-index: 0;
}

.glow {
    position: fixed;
    width: 500px;
    height: 500px;
    border-radius: 50%;
    filter: blur(180px);
    opacity: 0.06;
    pointer-events: none;
    z-index: 0;
}

.glow-1 {
    background: var(--accent);
    top: -250px;
    right: -150px;
    animation: fg 14s ease-in-out infinite alternate;
}

.glow-2 {
    background: var(--accent-dark);
    bottom: -250px;
    left: -150px;
    animation: fg 18s ease-in-out infinite alternate-reverse;
}

@keyframes fg {
    0% {
        transform: translate(0, 0)
    }

    100% {
        transform: translate(40px, 30px)
    }
}

/* Header */
header {
    position: relative;
    z-index: 10;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 20px 40px;
    border-bottom: 1px solid var(--border);
    backdrop-filter: blur(20px);
    background: rgba(5, 5, 5, 0.9);
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 700;
    font-size: 1.2rem;
    letter-spacing: 0.04em;
    text-transform: uppercase;
}

nav {
    display: flex;
    gap: 24px;
}

nav a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    transition: color var(--transition);
}

nav a:hover {
    color: var(--accent-light);
}

main {
    position: relative;
    z-index: 10;
    max-width: 900px;
    margin: 0 auto;
    padding: 40px 24px 80px;
}

/* Hero */
.hero {
    text-align: center;
    margin-bottom: 48px;
}

.badge {
    display: inline-block;
    padding: 6px 16px;
    border-radius: 4px;
    background: rgba(200, 30, 30, 0.08);
    border: 1px solid rgba(200, 30, 30, 0.2);
    color: var(--accent-light);
    font-size: 0.75rem;
    font-weight: 600;
    margin-bottom: 20px;
    letter-spacing: 0.06em;
    text-transform: uppercase;
}

h1 {
    font-size: clamp(2rem, 5vw, 3.2rem);
    font-weight: 800;
    letter-spacing: -0.02em;
    line-height: 1.1;
    margin-bottom: 16px;
    text-transform: uppercase;
}

.accent {
    color: var(--accent-light);
    -webkit-text-fill-color: var(--accent-light);
}

.subtitle {
    color: var(--text-secondary);
    font-size: 0.95rem;
    max-width: 640px;
    margin: 0 auto;
}

/* Generator Card */
.generator-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 32px;
    backdrop-filter: blur(20px);
    position: relative;
    overflow: hidden;
}

.generator-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--accent), var(--accent-dark), transparent);
    opacity: 0.6;
}

/* Form */
.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    font-size: 0.75rem;
    font-weight: 700;
    color: var(--text-secondary);
    margin-bottom: 8px;
    letter-spacing: 0.06em;
    text-transform: uppercase;
}

.required {
    color: var(--accent-light);
}

.optional {
    color: var(--text-muted);
    font-weight: 400;
    font-size: 0.7rem;
    text-transform: none;
}

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 12px 16px;
    background: var(--bg-panel);
    border: 1px solid var(--steel);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-family: var(--font-sans);
    font-size: 0.9rem;
    outline: none;
    transition: border-color var(--transition);
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    border-color: var(--accent);
}

.form-group textarea {
    resize: vertical;
    min-height: 100px;
    line-height: 1.6;
}

.form-group select {
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml,%3csvg width='12' height='8' viewBox='0 0 12 8' fill='none' xmlns='http://www.w3.org/2000/svg'%3e%3cpath d='M1 1.5L6 6.5L11 1.5' stroke='%23707070' stroke-width='1.5' stroke-linecap='round' stroke-linejoin='round'/%3e%3c/svg%3e");
    background-repeat: no-repeat;
    background-position: right 14px center;
    padding-right: 40px;
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: var(--text-muted);
}

.char-count {
    display: block;
    text-align: right;
    font-size: 0.65rem;
    color: var(--text-muted);
    margin-top: 4px;
    font-family: var(--font-mono);
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

/* Generate Button */
.generate-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    width: 100%;
    padding: 14px 28px;
    margin-top: 8px;
    background: var(--accent);
    border: 1px solid var(--accent-light);
    border-radius: var(--radius);
    color: white;
    font-family: var(--font-sans);
    font-size: 0.85rem;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 4px 24px rgba(200, 30, 30, 0.25);
    text-transform: uppercase;
    letter-spacing: 0.06em;
}

.generate-btn:hover {
    transform: scale(1.02);
    box-shadow: 0 6px 40px rgba(200, 30, 30, 0.4);
    background: var(--accent-light);
}

.generate-btn:active {
    transform: scale(0.98);
}

.generate-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none;
}

/* Results */
.results {
    margin-top: 32px;
}

.results.hidden {
    display: none;
}

.result-section {
    margin-bottom: 20px;
}

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

.result-header h3 {
    font-size: 0.8rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

.result-actions {
    display: flex;
    align-items: center;
    gap: 10px;
}

.tag-length {
    font-size: 0.65rem;
    color: var(--text-muted);
    font-family: var(--font-mono);
}

.tag-length.warning {
    color: var(--accent-light);
}

.tag-length.good {
    color: var(--green);
}

.copy-btn {
    padding: 4px 12px;
    background: rgba(200, 30, 30, 0.08);
    border: 1px solid var(--steel);
    border-radius: var(--radius-sm);
    color: var(--text-secondary);
    font-family: var(--font-sans);
    font-size: 0.7rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition);
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

.copy-btn:hover {
    background: rgba(200, 30, 30, 0.15);
    color: var(--text-primary);
    border-color: rgba(200, 30, 30, 0.3);
}

.copy-btn.copied {
    background: rgba(34, 197, 94, 0.1);
    color: var(--green);
    border-color: rgba(34, 197, 94, 0.25);
}

.code-block {
    background: var(--bg-panel);
    border: 1px solid var(--steel);
    border-radius: var(--radius-sm);
    padding: 16px;
    font-family: var(--font-mono);
    font-size: 0.8rem;
    line-height: 1.7;
    color: var(--accent-light);
    overflow-x: auto;
    white-space: pre-wrap;
    word-break: break-all;
}

/* SERP Preview */
.serp-preview {
    margin-top: 28px;
}

.serp-preview h3 {
    font-size: 0.8rem;
    font-weight: 700;
    margin-bottom: 12px;
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

.serp-card {
    background: #0a0a0a;
    border: 1px solid var(--steel);
    border-radius: var(--radius);
    padding: 20px;
    max-width: 600px;
}

.serp-url {
    font-size: 0.8rem;
    color: var(--green);
    margin-bottom: 4px;
}

.serp-title {
    font-size: 1.15rem;
    color: #8ab4f8;
    font-weight: 400;
    margin-bottom: 6px;
    cursor: pointer;
}

.serp-title:hover {
    text-decoration: underline;
}

.serp-desc {
    font-size: 0.85rem;
    color: #999;
    line-height: 1.5;
}

/* Features */
.features {
    margin-top: 80px;
    text-align: center;
}

.features h2 {
    font-size: 1.6rem;
    font-weight: 800;
    letter-spacing: 0.02em;
    margin-bottom: 40px;
    text-transform: uppercase;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 16px;
}

.feature-card {
    background: var(--bg-card);
    border: 1px solid var(--steel);
    border-radius: var(--radius);
    padding: 28px 24px;
    transition: all 0.3s ease;
}

.feature-card:hover {
    border-color: var(--border-hover);
    transform: translateY(-3px);
    box-shadow: 0 8px 32px rgba(200, 30, 30, 0.08);
}

.feature-icon {
    font-size: 1.4rem;
    margin-bottom: 14px;
}

.feature-card h3 {
    font-size: 0.9rem;
    font-weight: 700;
    margin-bottom: 8px;
    text-transform: uppercase;
    letter-spacing: 0.03em;
}

.feature-card p {
    font-size: 0.85rem;
    color: var(--text-secondary);
    line-height: 1.5;
}

/* FAQ */
.faq {
    margin-top: 80px;
}

.faq h2 {
    font-size: 1.6rem;
    font-weight: 800;
    letter-spacing: 0.02em;
    margin-bottom: 32px;
    text-align: center;
    text-transform: uppercase;
}

.faq-list {
    max-width: 700px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

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

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

.faq-item summary {
    padding: 16px 20px;
    font-weight: 700;
    font-size: 0.9rem;
    cursor: pointer;
    list-style: none;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.faq-item summary::after {
    content: '+';
    font-size: 1.2rem;
    color: var(--accent);
}

.faq-item[open] summary::after {
    content: '−';
}

.faq-item p {
    padding: 0 20px 16px;
    color: var(--text-secondary);
    font-size: 0.85rem;
    line-height: 1.6;
}

footer {
    position: relative;
    z-index: 10;
    text-align: center;
    padding: 32px;
    border-top: 1px solid var(--steel);
    color: var(--text-muted);
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

footer strong {
    color: var(--accent-light);
}

@media (max-width: 600px) {
    header {
        padding: 16px 20px;
    }

    main {
        padding: 24px 16px 60px;
    }

    .generator-card {
        padding: 20px 16px;
    }

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