/* ========== CSS Variables ========== */
:root {
    --bg-primary: #000000;
    --bg-card: #161823;
    --accent-red: #FE2C55;
    --accent-cyan: #25F4EE;
    --text-primary: #FFFFFF;
    --text-secondary: #8A8B91;
    --border: #2B2D3A;
    --accent-red-hover: #FF4D6D;
    --container-max: 1200px;
    --radius: 12px;
    --spacing-sm: 8px;
    --spacing-md: 16px;
    --spacing-lg: 32px;
    --spacing-xl: 64px;
}

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

html { scroll-behavior: smooth; }

body {
    font-family: system-ui, -apple-system, sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
}

h1, h2, h3 {
    font-family: 'Space Grotesk', system-ui, sans-serif;
    font-weight: 700;
    line-height: 1.2;
}

a { color: var(--accent-cyan); text-decoration: none; }
a:hover { text-decoration: underline; }
.skip-link {
    position: fixed;
    left: var(--spacing-md);
    top: var(--spacing-md);
    z-index: 1000;
    transform: translateY(calc(-100% - var(--spacing-lg)));
    background: var(--accent-cyan);
    color: var(--bg-primary);
    padding: 10px 14px;
    border-radius: var(--radius);
    font-weight: 700;
    transition: transform 0.2s;
}
.skip-link:focus { transform: translateY(0); text-decoration: none; }
a:focus-visible,
button:focus-visible,
input:focus-visible,
summary:focus-visible {
    outline: 2px solid var(--accent-cyan);
    outline-offset: 3px;
}

.container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

/* ========== Header ========== */
.site-header {
    position: sticky;
    top: 0;
    background: rgba(0,0,0,0.9);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border);
    z-index: 100;
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--spacing-md);
    height: 60px;
}

.logo {
    font-family: 'Space Grotesk', sans-serif;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--accent-red);
}

.main-nav { display: flex; gap: var(--spacing-lg); }
.main-nav a { color: var(--text-primary); font-weight: 500; }
.main-nav a:hover,
.main-nav a[aria-current="page"] { color: var(--accent-cyan); text-decoration: none; }
.main-nav a[aria-current="page"] { text-shadow: 0 0 12px rgba(37, 244, 238, 0.25); }

/* ========== Language Switcher ========== */
.lang-switcher { position: relative; }
.lang-btn {
    min-height: 40px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    color: var(--text-primary);
    padding: 8px 12px;
    border-radius: var(--radius);
    cursor: pointer;
    font-size: 0.875rem;
}
.lang-dropdown {
    display: none;
    position: absolute;
    right: 0;
    top: 100%;
    z-index: 200;
    margin-top: 4px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    min-width: 180px;
    max-height: min(70vh, 420px);
    overflow-y: auto;
}
.lang-dropdown a {
    display: block;
    min-height: 40px;
    padding: 10px 12px;
    color: var(--text-primary);
    font-size: 0.875rem;
}
.lang-dropdown a:hover,
.lang-dropdown a:focus,
.lang-dropdown a[aria-current="true"] { background: var(--border); text-decoration: none; }
.lang-dropdown a[aria-current="true"] { color: var(--accent-cyan); font-weight: 700; }
.lang-switcher.open .lang-dropdown { display: block; }

/* ========== Hero ========== */
.hero {
    text-align: center;
    padding: var(--spacing-xl) 0 var(--spacing-lg);
}

.hero-title {
    font-size: clamp(2rem, 5vw, 3.5rem);
    margin-bottom: var(--spacing-md);
    background: linear-gradient(90deg, var(--accent-red), var(--accent-cyan));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.125rem;
    color: var(--text-secondary);
}

/* ========== Input Section ========== */
.input-section {
    padding: var(--spacing-lg) 0;
}

.input-box {
    max-width: 640px;
    margin: 0 auto;
    background: var(--bg-card);
    border: 1px solid rgba(254, 44, 85, 0.35);
    border-radius: var(--radius);
    padding: var(--spacing-lg);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    box-shadow: 0 16px 40px rgba(254, 44, 85, 0.08), 0 0 0 1px rgba(37, 244, 238, 0.04);
}

.input-label {
    font-weight: 700;
    color: var(--text-primary);
}

.input-helper,
.input-trust,
.input-policy {
    color: var(--text-secondary);
    font-size: 0.875rem;
    text-align: center;
}

.input-helper,
.input-policy { text-align: left; }

.input-policy {
    padding: 10px 12px;
    background: rgba(37, 244, 238, 0.06);
    border: 1px solid rgba(37, 244, 238, 0.14);
    border-radius: var(--radius-sm);
}

.input-message {
    display: none;
    min-height: 1.4em;
    color: var(--accent-red-hover);
    font-size: 0.875rem;
    text-align: center;
}

.input-message.visible { display: block; }
.input-message.processing { color: var(--accent-cyan); }
.input-message.success { color: #5EEAD4; }
.input-message.error { color: var(--accent-red-hover); }
.input-box.is-loading {
    border-color: rgba(37, 244, 238, 0.45);
    box-shadow: 0 16px 40px rgba(37, 244, 238, 0.08), 0 0 0 1px rgba(37, 244, 238, 0.12);
}

.url-input {
    width: 100%;
    min-height: 108px;
    padding: 14px 16px;
    font-size: 1rem;
    line-height: 1.5;
    background: var(--bg-primary);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    color: var(--text-primary);
    outline: none;
    resize: vertical;
}
.url-input:focus { border-color: var(--accent-red); }
.url-input.error {
    border-color: var(--accent-red);
    box-shadow: 0 0 0 3px rgba(254, 44, 85, 0.16);
}
.url-input::placeholder { color: var(--text-secondary); }

.link-preview {
    padding: 12px 14px;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    color: var(--text-secondary);
    font-size: 0.875rem;
}

.link-preview.ready {
    border-color: rgba(37, 244, 238, 0.25);
    color: var(--text-primary);
}

.link-preview.error {
    border-color: rgba(254, 44, 85, 0.32);
}

.preview-title {
    margin-top: 4px;
    color: var(--text-primary);
    font-weight: 700;
    line-height: 1.4;
}

.preview-meta {
    margin-top: 4px;
    color: var(--text-secondary);
}

.format-toggle {
    display: flex;
    gap: var(--spacing-sm);
}

.format-btn {
    flex: 1;
    min-height: 44px;
    padding: 10px;
    background: var(--bg-primary);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    color: var(--text-secondary);
    cursor: pointer;
    font-weight: 500;
    transition: all 0.2s;
}
.format-btn.active, .format-btn:hover {
    background: var(--accent-red);
    border-color: var(--accent-red);
    color: var(--text-primary);
}

.download-btn {
    width: 100%;
    min-height: 48px;
    padding: 14px;
    font-size: 1.125rem;
    font-weight: 700;
    background: var(--accent-red);
    border: none;
    border-radius: var(--radius);
    color: var(--text-primary);
    cursor: pointer;
    transition: background 0.2s, opacity 0.2s;
}
.download-btn:hover { background: var(--accent-red-hover); }
.download-btn:disabled {
    cursor: not-allowed;
    opacity: 0.72;
}

/* ========== Ad Slots ========== */
.ad-slot {
    max-width: var(--container-max);
    margin: var(--spacing-lg) auto;
    min-height: 90px;
    background: rgba(22, 24, 35, 0.55);
    border: 1px dashed rgba(138, 139, 145, 0.35);
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    justify-content: center;
}
.ad-slot[data-ad-size="300x250"] { min-height: 250px; max-width: 300px; }
.ad-slot[data-ad-size="320x50"] { min-height: 50px; }
.ad-label {
    color: var(--text-secondary);
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    opacity: 0.65;
}

/* ========== Platforms ========== */
.platforms { padding: var(--spacing-xl) 0; }
.section-title {
    text-align: center;
    font-size: 1.75rem;
    margin-bottom: var(--spacing-lg);
}
.platform-grid {
    display: flex;
    justify-content: center;
    gap: var(--spacing-lg);
    flex-wrap: wrap;
}
.platform-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-sm);
    color: var(--text-secondary);
    font-size: 0.875rem;
}
.platform-icon {
    width: 56px; height: 56px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: 'Space Grotesk', sans-serif;
    font-weight: 700;
    font-size: 1rem;
    color: var(--accent-cyan);
}

/* ========== Tools ========== */
.tools { padding: var(--spacing-xl) 0; background: var(--bg-card); }
.tool-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-md);
}
.tool-card {
    background: var(--bg-primary);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: var(--spacing-lg);
    text-align: center;
    transition: transform 0.2s, border-color 0.2s;
}
.tool-card:hover {
    transform: translateY(-4px);
    border-color: var(--accent-red);
}
.tool-icon {
    font-family: 'JetBrains Mono', monospace;
    font-size: 1.5rem;
    color: var(--accent-red);
    margin-bottom: var(--spacing-sm);
}
.tool-card h3 { font-size: 1.125rem; margin-bottom: var(--spacing-sm); }
.tool-card p { color: var(--text-secondary); font-size: 0.875rem; }

/* ========== SEO Content Sections ========== */
.how-to, .features { padding: var(--spacing-xl) 0; }
.features { background: var(--bg-card); }
.step-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: var(--spacing-md);
}
.info-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: var(--spacing-lg);
}
.step-number {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    margin-bottom: var(--spacing-md);
    background: var(--accent-red);
    border-radius: 50%;
    font-weight: 700;
}
.info-card h3 { margin-bottom: var(--spacing-sm); }
.info-card p { color: var(--text-secondary); font-size: 0.875rem; }

/* ========== Blog Preview ========== */
.blog-preview { padding: var(--spacing-xl) 0; }
.blog-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-md);
}
.blog-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: var(--spacing-lg);
}
.blog-card h2, .blog-card h3 { font-size: 1.125rem; margin-bottom: var(--spacing-sm); color: var(--text-primary); }
.blog-card p { color: var(--text-secondary); font-size: 0.875rem; margin-bottom: var(--spacing-sm); }

/* ========== FAQ ========== */
.faq { padding: var(--spacing-xl) 0; background: var(--bg-card); }
.faq-item {
    max-width: 800px;
    margin: 0 auto var(--spacing-md);
    background: var(--bg-primary);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
}
.faq-item summary {
    padding: var(--spacing-md) var(--spacing-lg);
    font-weight: 600;
    cursor: pointer;
    list-style: none;
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.faq-item summary::after { content: '+'; font-size: 1.25rem; color: var(--accent-red); }
.faq-item[open] summary::after { content: '−'; }
.faq-item p {
    padding: 0 var(--spacing-lg) var(--spacing-md);
    color: var(--text-secondary);
}

/* ========== Footer ========== */
.site-footer {
    border-top: 1px solid var(--border);
    padding: var(--spacing-xl) 0 var(--spacing-lg);
    text-align: center;
}
.footer-links {
    display: flex;
    justify-content: center;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-md);
}
.footer-links a { color: var(--text-secondary); font-size: 0.875rem; }
.footer-links a:hover { color: var(--accent-cyan); }
.copyright { color: var(--text-secondary); font-size: 0.875rem; margin-bottom: var(--spacing-md); }
.footer-langs {
    display: flex;
    justify-content: center;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
}
.footer-langs a {
    font-size: 0.75rem;
    color: var(--text-secondary);
    padding: 4px 8px;
    border: 1px solid var(--border);
    border-radius: 4px;
}
.footer-langs a:hover { border-color: var(--accent-cyan); color: var(--accent-cyan); text-decoration: none; }

/* ========== Page Sections ========== */
.page-section { padding: var(--spacing-xl) 0; }
.page-title { font-size: 2rem; margin-bottom: var(--spacing-lg); text-align: center; }
.legal-page .container, .blog-post { max-width: 820px; }
.legal-page h2, .blog-post h2 { font-size: 1.25rem; margin: var(--spacing-lg) 0 var(--spacing-md); color: var(--accent-cyan); }
.legal-page p, .blog-post p { color: var(--text-secondary); margin-bottom: var(--spacing-md); }
.legal-intro {
    color: var(--text-primary) !important;
    font-size: 1.0625rem;
    text-align: center;
}
.legal-date {
    color: var(--text-secondary);
    font-size: 0.875rem;
    text-align: center;
}
.blog-post { margin: 0 auto; }
.post-date { color: var(--text-secondary); margin: var(--spacing-sm) 0 var(--spacing-lg); }

/* ========== Responsive ========== */
@media (max-width: 640px) {
    .container { padding: 0 14px; }
    .header-inner { flex-wrap: wrap; height: auto; padding: var(--spacing-sm) 0; }
    .main-nav { display: none; }
    .hero { padding-top: var(--spacing-lg); }
    .hero-title { font-size: 2rem; }
    .input-box { padding: var(--spacing-md); }
    .format-toggle { flex-direction: column; }
    .platform-grid { gap: var(--spacing-md); }
    .tool-grid { grid-template-columns: 1fr; }
    .footer-links { flex-direction: column; gap: var(--spacing-sm); }
}

@media (prefers-reduced-motion: reduce) {
    html { scroll-behavior: auto; }
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    .tool-card:hover { transform: none; }
}