/* ==========================================================================
   HEADER & SEARCH STYLES

   Contains:
   - Header Layout & App Title
   - Search Configuration Controls
   - Segmented Control (Text-to-Song / Song-to-Song)
   - Filter Options & Checkboxes
   - Search Input & Container
   - Search Suggestions Dropdown
   - Authentication Status Display
   ========================================================================== */

/* Header Styles */
.search-header {
    position: static;
    background: var(--color-background);
    padding: var(--space-md) var(--space-xl);
    padding-bottom: var(--space-sm);
}

.header-content {
    max-width: var(--max-width-content);
    margin: 0 auto;
}

.app-title {
    text-align: center;
    font-size: 2.4rem;
    font-weight: 700;
    margin-bottom: var(--space-md);
    background: linear-gradient(135deg, var(--color-primary), var(--color-primary-bright));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* Search Configuration */
.search-config {
    display: flex;
    gap: var(--space-md);
    justify-content: center;
    margin-bottom: var(--space-lg);
    align-items: center;
    flex-wrap: wrap;
}

/* Segmented Control */
.segmented-control {
    display: inline-flex;
    background: var(--color-white-alpha-12);
    border-radius: var(--radius-lg);
    padding: 4px;
    position: relative;
    transition: var(--transition-normal);
}

.segmented-control input[type="radio"] {
    display: none;
}

.segment-label {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    padding: 0.65rem var(--space-md);
    color: var(--color-text-primary);
    font-size: 0.9rem;
    font-weight: 500;
    cursor: pointer;
    border-radius: var(--radius-md);
    transition: var(--transition-fast);
    position: relative;
    z-index: 1;
    white-space: nowrap;
}

.segment-icon {
    font-size: 1rem;
    opacity: 0.8;
    transition: opacity var(--transition-fast);
    filter: brightness(2) contrast(1.2);
}

.segment-text {
    font-weight: 500;
}

.segment-label:hover {
    color: #ffffff;
}

.segment-label:hover .segment-icon {
    opacity: 1;
}

.segmented-control input[type="radio"]:checked + .segment-label {
    background: var(--color-primary-alpha-80);
    color: #ffffff;
    font-weight: 600;
    box-shadow: var(--shadow-md);
}

.segmented-control input[type="radio"]:checked + .segment-label .segment-icon {
    opacity: 1;
    filter: brightness(1.1);
}

/* Responsive adjustments for segmented control */
@media (max-width: 640px) {
    .segment-label {
        padding: var(--space-sm) 0.75rem;
        font-size: 0.85rem;
    }

    .segment-text {
        display: none;
    }

    .segment-icon {
        font-size: 1.1rem;
    }
}

/* Filter Option */
.filter-option {
    display: flex;
    align-items: center;
}

.filter-checkbox-label {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    cursor: pointer;
    user-select: none;
    color: #fff;
    font-size: 0.9rem;
}

.filter-checkbox-label input[type="checkbox"]:disabled {
    cursor: not-allowed;
}

.filter-checkbox-label input[type="checkbox"]:disabled + .checkmark {
    background: var(--color-white-alpha-10);
    border-color: var(--color-white-alpha-20);
}

.filter-checkbox-label input[type="checkbox"]:disabled ~ .filter-text {
    color: rgba(255, 255, 255, 0.5);
    cursor: not-allowed;
}

.filter-checkbox {
    width: 16px;
    height: 16px;
    margin: 0;
    accent-color: var(--color-primary);
}

/* Search Container */
.search-container {
    display: flex;
    justify-content: center;
    max-width: 960px;
    margin: 0 auto var(--space-md);
}

.search-input {
    width: 100%;
    background: var(--color-white-alpha-16);
    border: 2px solid var(--border-primary);
    border-radius: var(--radius-xl);
    padding: 1.25rem var(--space-xl);
    font-size: 1.1rem;
    color: var(--color-text-primary);
    transition: var(--transition-normal);
    box-shadow: var(--shadow-md);
}

.search-input:focus,
.search-input:hover {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px var(--color-primary-alpha-20);
    background: var(--color-white-alpha-20);
}

.search-input::placeholder {
    color: var(--color-text-tertiary);
    font-style: italic;
}

/* Prevent browser autofill from overriding styling */
.search-input:-webkit-autofill,
.search-input:-webkit-autofill:hover,
.search-input:-webkit-autofill:focus,
.search-input:-webkit-autofill:active {
    -webkit-box-shadow: 0 0 0 30px var(--color-white-alpha-08) inset !important;
    -webkit-text-fill-color: var(--color-text-primary) !important;
    transition: background-color 5000s ease-in-out 0s;
    background-color: transparent !important;
}

/* Firefox autofill fix */
.search-input:-moz-autofill {
    background-color: var(--color-white-alpha-08) !important;
    color: var(--color-text-primary) !important;
}

/* Suggestions */
.suggestions-container {
    max-width: 880px;
    margin: 0 auto;
    background: rgba(26, 26, 31, 0.98);
    border: 1px solid var(--border-lighter);
    border-radius: var(--radius-lg);
    backdrop-filter: blur(10px);
    max-height: 384px;
    overflow-y: auto;
}

.suggestion-item {
    padding: 0.7rem 1.2rem;
    cursor: pointer;
    border-bottom: 1px solid var(--color-white-alpha-05);
    transition: background var(--transition-fast);
    display: flex;
    align-items: center;
    gap: var(--space-md);
}

.suggestion-item:hover {
    background: var(--color-primary-alpha-10);
}

.suggestion-item:last-child {
    border-bottom: none;
}

.suggestion-cover {
    width: 48px;
    height: 48px;
    border-radius: 6px;
    object-fit: cover;
}

.suggestion-details {
    flex: 1;
}

.suggestion-title {
    font-weight: 600;
    color: #fff;
    margin-bottom: var(--space-xs);
}

.suggestion-artist {
    color: var(--color-text-secondary);
    font-size: 0.9rem;
}

/* Auth Status */
.auth-status {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: var(--space-sm);
    font-size: 0.8rem;
    color: var(--color-text-secondary);
    flex: 0 0 auto;
    margin-left: auto;
}

.auth-indicator {
    font-size: 1.2rem;
    color: #666;
}

.auth-indicator.connected {
    color: var(--color-primary);
    animation: spotify-pulse 2s ease-in-out infinite;
}

.login-btn,
.logout-btn {
    border: none;
    border-radius: var(--radius-xl);
    padding: 0.4rem 0.8rem;
    color: white;
    font-size: 0.75rem;
    cursor: pointer;
    transition: background var(--transition-normal);
    margin-left: var(--space-sm);
}

.login-btn {
    background: var(--color-primary);
}

.logout-btn {
    background: #666;
}

.login-btn:hover {
    background: var(--color-primary-bright);
}

.logout-btn:hover {
    background: #777;
}