/* ════════════════════════════════════════════════
   Hero Section
   ════════════════════════════════════════════════ */

/* ═══════════════════════════════════════════════
   HERO
   ═══════════════════════════════════════════════ */
.hero {
    max-width: 950px;
    margin: 0 auto;
    padding: 80px 24px 60px;
    text-align: center;
}
.hero-content { margin-bottom: 60px; }

.hero-tag {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 0.8px;
    text-transform: uppercase;
    color: var(--accent-light);
    background: rgba(139, 92, 246, 0.1);
    border: 1px solid rgba(139, 92, 246, 0.25);
    padding: 6px 16px;
    border-radius: 20px;
    margin-bottom: 28px;
}

.hero-title {
    font-size: clamp(32px, 5.5vw, 62px);
    font-weight: 900;
    line-height: 1.12;
    letter-spacing: -2px;
    margin-bottom: 22px;
}

.gradient-text {
    background: linear-gradient(135deg, #a78bfa 0%, #60a5fa 50%, #a78bfa 100%);
    background-size: 200% auto;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: gradShift 5s ease infinite;
}
@keyframes gradShift {
    0%   { background-position: 0% center; }
    50%  { background-position: 100% center; }
    100% { background-position: 0% center; }
}

.hero-subtitle {
    font-size: 17px;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto 44px;
    line-height: 1.75;
}

/* Search box */
.search-box {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border);
    border-radius: var(--radius-xl);
    padding: 8px 8px 8px 20px;
    max-width: 720px;
    margin: 0 auto;
    transition: border-color var(--transition), box-shadow var(--transition);
}
.search-box:focus-within {
    border-color: rgba(139, 92, 246, 0.55);
    box-shadow: 0 0 0 4px rgba(139, 92, 246, 0.1), var(--shadow-glow);
}
.search-input-wrapper {
    display: flex;
    align-items: center;
    gap: 12px;
}
.search-icon { width: 20px; height: 20px; color: var(--text-muted); flex-shrink: 0; }
.search-input {
    flex: 1;
    background: none;
    border: none;
    outline: none;
    font-family: var(--font);
    font-size: 15px;
    color: var(--text-primary);
    min-width: 0;
}
.search-input::placeholder { color: var(--text-muted); }
.search-btn {
    display: flex;
    align-items: center;
    gap: 8px;
    background: linear-gradient(135deg, var(--accent), var(--accent-dark));
    color: white;
    border: none;
    padding: 13px 26px;
    border-radius: var(--radius-lg);
    font-family: var(--font);
    font-size: 14px;
    font-weight: 700;
    cursor: pointer;
    transition: all var(--transition);
    white-space: nowrap;
    box-shadow: 0 4px 16px rgba(109, 40, 217, 0.4);
}
.search-btn:hover { transform: translateY(-2px); box-shadow: 0 8px 24px rgba(109, 40, 217, 0.55); }
.search-btn:active { transform: translateY(0); }
.search-btn:disabled { opacity: 0.55; cursor: not-allowed; transform: none; }
.btn-icon { width: 16px; height: 16px; }
.search-hint {
    margin-top: 14px;
    font-size: 12px;
    color: var(--text-muted);
    padding: 0 4px;
}

/* Language selector */
.lang-row {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-top: 14px;
    padding: 0 4px;
    flex-wrap: wrap;
}
.lang-label {
    font-size: 12px;
    color: var(--text-muted);
    font-weight: 500;
    white-space: nowrap;
}
.lang-options {
    display: flex;
    gap: 6px;
    flex-wrap: wrap;
}
.lang-btn {
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid var(--border);
    color: var(--text-secondary);
    padding: 5px 12px;
    border-radius: 20px;
    font-family: var(--font);
    font-size: 12px;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition);
    white-space: nowrap;
}
.lang-btn:hover {
    border-color: rgba(139, 92, 246, 0.4);
    color: var(--text-primary);
    background: rgba(139, 92, 246, 0.08);
}
.lang-btn.active {
    background: rgba(139, 92, 246, 0.15);
    border-color: var(--accent);
    color: var(--accent-light);
    font-weight: 600;
}

/* Feature cards */
.features {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
    margin-top: 52px;
}
.feature-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 24px 20px;
    text-align: left;
    transition: all var(--transition);
    cursor: default;
}
.feature-card:hover {
    border-color: var(--border-accent);
    background: var(--bg-card-hover);
    transform: translateY(-3px);
    box-shadow: var(--shadow-card);
}
.feature-icon { font-size: 30px; margin-bottom: 14px; }
.feature-title { font-size: 15px; font-weight: 700; margin-bottom: 6px; }
.feature-desc { font-size: 13px; color: var(--text-secondary); line-height: 1.55; }




/* ═══════════════════════════════════════════════
   Mobile Responsive
   ═══════════════════════════════════════════════ */
@media (max-width: 768px) {
    .hero { padding: 40px 16px 40px; }
    .hero-title { font-size: clamp(24px, 6vw, 40px); letter-spacing: -1px; }
    .hero-subtitle { font-size: 14px; margin-bottom: 28px; }
    .features { grid-template-columns: 1fr; gap: 12px; margin-top: 32px; }
    .search-box { padding: 6px 6px 6px 14px; }
    .search-btn { padding: 10px 16px; font-size: 13px; }
    .lang-options { gap: 4px; }
    .lang-btn { padding: 4px 8px; font-size: 11px; }
    .input-mode-tabs { gap: 4px; }
    .input-tab { font-size: 12px; padding: 8px 12px; }
}

@media (max-width: 480px) {
    .hero { padding: 24px 12px 32px; }
    .hero-content { margin-bottom: 32px; }
    .hero-tag { font-size: 10px; padding: 4px 12px; margin-bottom: 16px; }
    .hero-title { margin-bottom: 14px; }
    .hero-subtitle { font-size: 13px; line-height: 1.6; }
    .search-input { font-size: 13px; }
    .search-btn .btn-text { display: none; }
    .search-btn { padding: 10px 12px; }
    .search-hint { font-size: 11px; }
    .feature-card { padding: 16px 14px; }
    .feature-icon { font-size: 24px; margin-bottom: 8px; }
    .feature-title { font-size: 14px; }
    .feature-desc { font-size: 12px; }
}