/*
Header Styles
*/

.site-header {
    background: var(--bg-surface);
    border-bottom: 1px solid var(--border-color);
    padding: var(--spacing-sm) 0;
    transition: all var(--transition-base);
    z-index: 9999;
}

.sticky-header {
    position: sticky;
    top: 0;
    background: var(--background-glass);
    -webkit-backdrop-filter: blur(12px);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border-glass);
    box-shadow: var(--shadow-sm);
    z-index: 9999;
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.site-branding {
    display: flex;
    align-items: center;
}

.site-title {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--text-primary);
    text-transform: uppercase;
    letter-spacing: -0.5px;
}

.logo-neon .site-title {
    background: linear-gradient(135deg, #818cf8, #c084fc, #22d3ee);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    font-weight: 900;
    font-size: 2.2rem;
    font-family: var(--font-heading);
    letter-spacing: -0.03em;
    filter: drop-shadow(0 0 15px rgba(129, 140, 248, 0.4));
    animation: neonPulse 4s infinite alternate, neonFlicker 2s infinite;
}

@keyframes neonPulse {
    0% {
        filter: drop-shadow(0 0 10px rgba(129, 140, 248, 0.4));
    }

    50% {
        filter: drop-shadow(0 0 25px rgba(34, 211, 238, 0.6));
    }

    100% {
        filter: drop-shadow(0 0 15px rgba(192, 132, 252, 0.5));
    }
}

@keyframes neonFlicker {

    0%,
    18%,
    22%,
    25%,
    53%,
    57%,
    100% {
        opacity: 1;
    }

    20%,
    24%,
    55% {
        opacity: 0.8;
    }
}

[data-theme="dark"] .logo-neon .site-title {
    background: linear-gradient(135deg, #60a5fa, #c084fc, #34d399);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    filter: drop-shadow(0 0 20px rgba(96, 165, 250, 0.5));
}

.main-navigation ul {
    display: flex;
    list-style: none;
    margin: 0;
    padding: 0;
    gap: 0.5rem;
}

.main-navigation a {
    color: var(--text-secondary);
    font-weight: 500;
    font-size: 0.95rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    transition: all var(--transition-base);
    padding: 0.6rem 1rem;
    border-radius: var(--radius-full);
}

.main-navigation a i {
    font-size: 1.1rem;
    transition: transform var(--transition-bounce);
}

.main-navigation a:hover {
    color: var(--primary-color);
    background: rgba(79, 70, 229, 0.08);
    transform: translateY(-2px);
}

/* Nav Stickers */
.nav-sticker {
    position: absolute;
    top: -5px;
    right: -5px;
    font-size: 0.65rem;
    font-weight: 900;
    padding: 1px 6px;
    border-radius: 20px;
    color: white;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
    pointer-events: none;
}

.sticker-hot-nav {
    background: linear-gradient(135deg, #ff416c, #ff4b2b);
}

.sticker-new-nav {
    background: linear-gradient(135deg, #0cebeb, #20e3b2, #29ffc6);
}

.main-navigation li {
    position: relative;
}

[data-theme="dark"] .main-navigation a:hover {
    color: var(--brand-neon);
    background: rgba(255, 255, 255, 0.08);
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.action-btn {
    background: rgba(var(--bg-surface-rgb), 0.6);
    border: 1px solid var(--border-glass);
    color: var(--text-primary);
    font-size: 1.15rem;
    cursor: pointer;
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 12px;
    /* Squircle */
    -webkit-backdrop-filter: blur(8px);
    backdrop-filter: blur(8px);
    transition: all 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    box-shadow: var(--shadow-sm);
}

[data-theme="dark"] .action-btn {
    background: rgba(255, 255, 255, 0.05); /* Very subtle glass for dark mode */
    border-color: rgba(255, 255, 255, 0.1);
    color: var(--text-primary);
}

.action-btn:hover {
    color: var(--brand-primary);
    background: var(--bg-surface);
    border-color: var(--brand-primary);
    transform: translateY(-3px) scale(1.05);
    box-shadow: 0 10px 20px rgba(79, 70, 229, 0.15);
}

.action-btn i {
    transition: transform 0.3s ease;
}

.action-btn:hover i {
    transform: rotate(5deg);
}