/* Header */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
    background: rgba(var(--bg-primary-rgb, 0, 0, 0), 0.85);
}

.theme-dark .site-header {
    background: rgba(10, 10, 10, 0.85);
}

.theme-light .site-header {
    background: rgba(255, 255, 255, 0.85);
}

.header-nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-sm) var(--space-md);
    max-width: 1400px;
    margin: 0 auto;
    position: relative;
    gap: var(--space-md);
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    flex-shrink: 0;
}

/* Search trigger inside nav-brand */
.nav-brand .search-trigger {
    margin-left: var(--space-sm);
    flex-shrink: 0;
}

/* Make sure search trigger is not absolutely positioned */
.site-header .search-trigger {
    position: relative;
}

.name-element {
    font-family: var(--font-mono);
    font-weight: 600;
    font-size: 1.15rem;
    cursor: pointer;
    position: relative;
    transition: var(--transition-normal);
}

.arabic-name {
    font-family: var(--font-arabic);
    font-size: 1rem;
    font-weight: 500;
    opacity: 0.8;
}

/* Weather & Clock Container */
.header-info {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
}

/* Weather Widget */
.weather-widget {
    display: flex;
    align-items: center;
    gap: var(--space-xs);
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.weather-icon {
    font-size: 1rem;
    color: var(--accent-color);
}

.weather-temp {
    font-family: var(--font-mono);
    font-weight: 500;
}

/* Date Widget with Calendar */
.date-widget {
    position: relative;
}

.date-display {
    font-family: var(--font-mono);
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--text-primary);
    cursor: pointer;
    padding: 0.3rem 0.6rem;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    transition: all 0.3s ease;
    white-space: nowrap;
}

.date-display:hover {
    border-color: var(--accent-color);
    color: var(--accent-color);
}

/* Calendar Popup */
.calendar-popup {
    position: absolute;
    top: calc(100% + 10px);
    left: 50%;
    transform: translateX(-50%) scale(0.95);
    background: var(--bg-secondary);
    border: 1px solid var(--accent-color);
    border-radius: 8px;
    padding: 1rem;
    min-width: 280px;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
    z-index: 1001;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.4);
}

.calendar-popup.show {
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) scale(1);
}

.theme-dark .calendar-popup {
    background: rgba(15, 20, 25, 0.98);
    box-shadow: 0 0 20px rgba(0, 255, 255, 0.1), 0 10px 40px rgba(0, 0, 0, 0.5);
}

.theme-light .calendar-popup {
    background: rgba(255, 255, 255, 0.98);
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.15);
}

/* Calendar Header */
.calendar-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 0.8rem;
    padding-bottom: 0.5rem;
    border-bottom: 1px solid var(--border-color);
}

.calendar-month-year {
    font-family: var(--font-mono);
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--accent-color);
    letter-spacing: 0.1em;
}

.calendar-nav-btn {
    background: none;
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    width: 28px;
    height: 28px;
    border-radius: 4px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
}

.calendar-nav-btn:hover {
    border-color: var(--accent-color);
    color: var(--accent-color);
}

/* Calendar Weekdays */
.calendar-weekdays {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    gap: 2px;
    margin-bottom: 0.5rem;
}

.calendar-weekdays span {
    font-family: var(--font-mono);
    font-size: 0.65rem;
    font-weight: 600;
    color: var(--text-secondary);
    text-align: center;
    padding: 0.3rem 0;
}

/* Calendar Days Grid */
.calendar-days {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    gap: 2px;
}

.calendar-day {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    text-align: center;
    padding: 0.5rem 0.3rem;
    cursor: pointer;
    border-radius: 4px;
    transition: all 0.2s ease;
    color: var(--text-secondary);
}

.calendar-day:hover:not(.empty) {
    background: rgba(var(--accent-rgb), 0.2);
    color: var(--accent-color);
}

.calendar-day.empty {
    cursor: default;
}

.calendar-day.today {
    background: rgba(var(--accent-rgb), 0.15);
    color: var(--accent-color);
    font-weight: 600;
}

.calendar-day.selected {
    background: var(--accent-color);
    color: var(--bg-primary);
    font-weight: 600;
}

/* Calendar Footer */
.calendar-footer {
    margin-top: 0.8rem;
    padding-top: 0.5rem;
    border-top: 1px solid var(--border-color);
    text-align: center;
}

.selected-date {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--text-secondary);
    letter-spacing: 0.05em;
}

/* Clock Display - Stacked */
.header-clock {
    display: flex;
    align-items: center;
}

.clock-display {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0;
    font-family: var(--font-mono);
    line-height: 1.2;
}

.clock-24h {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-primary);
}

.clock-12h {
    font-size: 0.7rem;
    font-weight: 500;
    color: var(--text-secondary);
    opacity: 0.8;
}

.theme-dark .clock-24h {
    text-shadow: 0 0 6px var(--accent-color);
}

/* Nav Actions */
.nav-actions {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    flex-shrink: 0;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: var(--space-md);
    flex-wrap: wrap;
}

.nav-link {
    text-decoration: none;
    font-weight: 500;
    font-size: 0.9rem;
    transition: var(--transition-normal);
    position: relative;
    white-space: nowrap;
    color: var(--text-secondary);
}

.nav-link:hover {
    color: var(--accent-color);
}

.nav-link.active {
    color: var(--accent-color);
}

.nav-link.active::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--accent-color);
    border-radius: 1px;
}

.theme-toggle {
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--space-xs);
    border-radius: var(--border-radius-md);
    transition: var(--transition-normal);
    font-size: 1.1rem;
    color: var(--text-secondary);
}

.theme-toggle:hover {
    color: var(--accent-color);
}

/* Toggle Buttons Container */
.toggle-buttons {
    display: flex;
    align-items: center;
    gap: var(--space-xs);
}

/* Effects Toggle */
.effects-toggle {
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--space-xs);
    border-radius: var(--border-radius-md);
    transition: var(--transition-normal);
    font-size: 1.1rem;
    color: var(--text-secondary);
    position: relative;
}

.effects-toggle:hover {
    color: var(--accent-color);
}

/* Panel is open */
.effects-toggle.active {
    color: var(--accent-color);
}

.effects-toggle.active::after {
    content: '';
    position: absolute;
    bottom: 2px;
    left: 50%;
    transform: translateX(-50%);
    width: 4px;
    height: 4px;
    background: var(--accent-color);
    border-radius: 50%;
}

.theme-dark .effects-toggle.active {
    text-shadow: 0 0 10px var(--accent-color);
}

/* Effects are enabled */
.effects-toggle.enabled {
    color: var(--accent-color);
    opacity: 1;
}

.theme-dark .effects-toggle.enabled {
    text-shadow: 0 0 8px var(--accent-color);
}

/* Effects disabled state indicator */
.effects-toggle.disabled {
    opacity: 0.5;
    color: var(--text-secondary);
}

.effects-toggle.disabled i {
    position: relative;
}

.effects-toggle.disabled i::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 18px;
    height: 2px;
    background: var(--error-color);
    transform: translate(-50%, -50%) rotate(-45deg);
    opacity: 0.8;
}

/* Responsive Header */
@media (max-width: 1024px) {
    .header-info {
        position: static;
        transform: none;
        order: 2;
    }
    
    .header-nav {
        flex-wrap: wrap;
        justify-content: center;
        gap: var(--space-sm);
    }
    
    .nav-brand {
        order: 1;
    }
    
    .nav-actions {
        order: 3;
    }
}

@media (max-width: 768px) {
    .header-nav {
        padding: var(--space-xs) var(--space-sm);
    }
    
    .nav-links {
        gap: var(--space-sm);
    }
    
    .nav-link {
        font-size: 0.8rem;
    }
    
    .header-info {
        gap: var(--space-xs);
    }
    
    .weather-widget {
        font-size: 0.75rem;
    }
    
    .clock-24h {
        font-size: 0.8rem;
    }
    
    .clock-12h {
        font-size: 0.65rem;
    }
    
    .date-display {
        font-size: 0.75rem;
        padding: 0.2rem 0.4rem;
    }
    
    .calendar-popup {
        min-width: 260px;
        padding: 0.8rem;
    }
}

@media (max-width: 600px) {
    .header-nav {
        flex-direction: column;
        gap: var(--space-xs);
        padding: var(--space-xs);
    }
    
    .nav-brand {
        order: 1;
    }
    
    .header-info {
        order: 2;
        width: 100%;
        justify-content: center;
    }
    
    .nav-actions {
        order: 3;
        width: 100%;
        justify-content: center;
    }
    
    .nav-links {
        justify-content: center;
        gap: var(--space-xs);
    }
}

@media (max-width: 480px) {
    .arabic-name {
        display: none;
    }
    
    .weather-widget {
        display: none;
    }
    
    .nav-link {
        font-size: 0.75rem;
    }
    
    .date-display {
        font-size: 0.7rem;
    }
    
    .calendar-popup {
        left: auto;
        right: -10px;
        transform: scale(0.95);
        min-width: 250px;
    }
    
    .calendar-popup.show {
        transform: scale(1);
    }
}