/* ========================================
   iOS 26 Liquid Glass Components
   ======================================== */

/* ========================================
   基礎液態玻璃類別
   ======================================== */

/* 主要液態玻璃效果 */
.liquid-glass {
    background: var(--liquid-glass-primary);
    backdrop-filter: var(--backdrop-blur-medium);
    -webkit-backdrop-filter: var(--backdrop-blur-medium);
    border: 1px solid var(--liquid-glass-border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-glass);
    position: relative;
    overflow: hidden;
    transition: var(--transition-liquid);
}

.liquid-glass::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, 
        transparent 0%, 
        var(--liquid-glass-highlight) 20%, 
        var(--liquid-glass-highlight) 80%, 
        transparent 100%);
    opacity: 0.8;
}

.liquid-glass:hover {
    background: var(--liquid-glass-secondary);
    box-shadow: var(--shadow-glass-hover);
    transform: translateY(-2px) scale(1.01);
    border-color: var(--liquid-glass-border-strong);
}

/* 次要液態玻璃效果 */
.liquid-glass-secondary {
    background: var(--liquid-glass-secondary);
    backdrop-filter: var(--backdrop-blur-light);
    -webkit-backdrop-filter: var(--backdrop-blur-light);
    border: 1px solid var(--liquid-glass-border);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-md);
    transition: var(--transition-smooth);
}

.liquid-glass-secondary:hover {
    background: var(--liquid-glass-primary);
    box-shadow: var(--shadow-lg);
    transform: translateY(-1px);
}

/* 輕量液態玻璃效果 */
.liquid-glass-light {
    background: var(--liquid-glass-tertiary);
    backdrop-filter: var(--backdrop-blur-light);
    -webkit-backdrop-filter: var(--backdrop-blur-light);
    border: 1px solid var(--liquid-glass-border);
    border-radius: var(--radius-sm);
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

/* 強化液態玻璃效果 */
.liquid-glass-strong {
    background: var(--liquid-glass-primary);
    backdrop-filter: var(--backdrop-blur-strong);
    -webkit-backdrop-filter: var(--backdrop-blur-strong);
    border: 2px solid var(--liquid-glass-border-strong);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-xl);
    position: relative;
    overflow: hidden;
}

.liquid-glass-strong::after {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: conic-gradient(from 0deg, 
        transparent 0deg, 
        var(--liquid-glass-highlight) 90deg, 
        transparent 180deg, 
        var(--liquid-glass-highlight) 270deg, 
        transparent 360deg);
    animation: rotate 8s linear infinite;
    opacity: 0.3;
    pointer-events: none;
}

@keyframes rotate {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

/* ========================================
   玻璃卡片組件
   ======================================== */
.glass-card {
    background: var(--glass-bg);
    backdrop-filter: blur(20px) saturate(180%);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    padding: 24px;
    box-shadow: var(--shadow-glass);
    transition: var(--transition-smooth);
    position: relative;
    overflow: hidden;
}

.glass-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, 
        transparent 0%, 
        var(--glass-inner-light) 50%, 
        transparent 100%);
}

.glass-card:hover {
    transform: translateY(-4px) scale(1.02);
    box-shadow: var(--shadow-glass-hover);
    background: var(--glass-bg-light);
    border-color: var(--glass-border-light);
}

/* 卡片變體 */
.glass-card-compact {
    padding: 16px;
    border-radius: var(--radius-md);
}

.glass-card-large {
    padding: 32px;
    border-radius: var(--radius-xl);
}

.glass-card-minimal {
    background: var(--glass-bg-light);
    border: none;
    box-shadow: var(--shadow-sm);
}

/* ========================================
   玻璃按鈕組件
   ======================================== */
.glass-button {
    background: var(--glass-bg);
    backdrop-filter: blur(20px) saturate(180%);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-md);
    padding: 12px 24px;
    color: var(--text-primary);
    font-weight: 500;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    cursor: pointer;
    transition: var(--transition-spring);
    position: relative;
    overflow: hidden;
    box-shadow: var(--shadow-md);
}

.glass-button::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, 
        transparent 0%, 
        var(--glass-inner-light) 50%, 
        transparent 100%);
    transition: left 0.5s ease;
}

.glass-button:hover::before {
    left: 100%;
}

.glass-button:hover {
    transform: translateY(-2px) scale(1.05);
    background: var(--glass-bg-light);
    box-shadow: var(--shadow-glass-hover);
    border-color: var(--glass-border-light);
}

.glass-button:active {
    transform: translateY(0) scale(0.98);
}

/* 按鈕變體 */
.glass-button-primary {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
    color: white;
    border-color: var(--primary-dark);
}

.glass-button-primary:hover {
    background: linear-gradient(135deg, var(--primary-light) 0%, var(--primary-glow) 100%);
    box-shadow: 0 8px 32px rgba(139, 92, 246, 0.3);
}

.glass-button-secondary {
    background: var(--glass-bg-light);
    color: var(--text-secondary);
}

.glass-button-small {
    padding: 8px 16px;
    font-size: 14px;
    border-radius: var(--radius-sm);
}

.glass-button-large {
    padding: 16px 32px;
    font-size: 18px;
    border-radius: var(--radius-lg);
}

/* ========================================
   導航欄組件
   ======================================== */
.glass-navbar {
    background: var(--glass-bg-strong);
    backdrop-filter: blur(40px) saturate(200%);
    -webkit-backdrop-filter: blur(40px) saturate(200%);
    border-bottom: 1px solid var(--glass-border);
    padding: 12px 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    transition: var(--transition);
}

.glass-navbar-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.glass-navbar-brand {
    font-size: 20px;
    font-weight: 700;
    color: var(--text-primary);
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 12px;
}

.glass-navbar-nav {
    display: flex;
    align-items: center;
    gap: 8px;
    list-style: none;
    margin: 0;
    padding: 0;
}

.glass-navbar-item {
    position: relative;
}

.glass-navbar-link {
    padding: 8px 16px;
    color: var(--text-secondary);
    text-decoration: none;
    border-radius: var(--radius-sm);
    transition: var(--transition);
    font-weight: 500;
}

.glass-navbar-link:hover,
.glass-navbar-link.active {
    color: var(--text-primary);
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
}

/* ========================================
   輸入框組件
   ======================================== */
.glass-input {
    background: var(--glass-bg);
    backdrop-filter: blur(20px) saturate(180%);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-md);
    padding: 12px 16px;
    color: var(--text-primary);
    font-size: 16px;
    width: 100%;
    transition: var(--transition);
    outline: none;
}

.glass-input::placeholder {
    color: var(--text-light);
}

.glass-input:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(139, 92, 246, 0.1);
    background: var(--glass-bg);
    color: var(--text-primary);
}

.glass-input:hover {
    border-color: var(--glass-border-light);
    background: var(--glass-bg);
    color: var(--text-primary);
}

/* 深色模式下的輸入框樣式修復 */
@media (prefers-color-scheme: dark) {
    .glass-input:focus {
        background: rgba(30, 41, 59, 0.8) !important;
        color: #f8fafc !important;
    }
    
    .glass-input:hover {
        background: rgba(30, 41, 59, 0.6) !important;
        color: #f8fafc !important;
    }
}

.theme-dark .glass-input:focus {
    background: rgba(30, 41, 59, 0.8) !important;
    color: #f8fafc !important;
}

.theme-dark .glass-input:hover {
    background: rgba(30, 41, 59, 0.6) !important;
    color: #f8fafc !important;
}

/* ========================================
   模態框組件
   ======================================== */
.glass-modal {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 2000;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
}

.glass-modal.active {
    opacity: 1;
    visibility: visible;
}

.glass-modal-content {
    background: var(--glass-bg-strong);
    backdrop-filter: blur(40px) saturate(200%);
    -webkit-backdrop-filter: blur(40px) saturate(200%);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-xl);
    padding: 32px;
    max-width: 500px;
    width: 90%;
    max-height: 80vh;
    overflow-y: auto;
    box-shadow: var(--shadow-xl);
    transform: scale(0.9) translateY(20px);
    transition: var(--transition-spring);
}

.glass-modal.active .glass-modal-content {
    transform: scale(1) translateY(0);
}

/* ========================================
   工具提示組件
   ======================================== */
.glass-tooltip {
    position: relative;
    display: inline-block;
}

.glass-tooltip-content {
    position: absolute;
    bottom: 100%;
    left: 50%;
    transform: translateX(-50%);
    background: var(--glass-bg-strong);
    backdrop-filter: blur(20px) saturate(180%);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-sm);
    padding: 8px 12px;
    color: var(--text-primary);
    font-size: 14px;
    white-space: nowrap;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
    z-index: 1500;
    margin-bottom: 8px;
}

.glass-tooltip:hover .glass-tooltip-content {
    opacity: 1;
    visibility: visible;
}

/* ========================================
   進度條組件
   ======================================== */
.glass-progress {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-full);
    height: 8px;
    overflow: hidden;
    position: relative;
}

.glass-progress-bar {
    background: linear-gradient(90deg, var(--primary) 0%, var(--primary-light) 100%);
    height: 100%;
    border-radius: var(--radius-full);
    transition: width 0.3s ease;
    position: relative;
    overflow: hidden;
}

.glass-progress-bar::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(90deg, 
        transparent 0%, 
        rgba(255, 255, 255, 0.3) 50%, 
        transparent 100%);
    animation: shimmer 2s infinite;
}

@keyframes shimmer {
    0% { transform: translateX(-100%); }
    100% { transform: translateX(100%); }
}

/* ========================================
   響應式設計
   ======================================== */
@media (max-width: 768px) {
    .glass-card {
        padding: 16px;
        border-radius: var(--radius-md);
    }
    
    .glass-navbar-content {
        padding: 0 16px;
    }
    
    .glass-navbar-nav {
        gap: 4px;
    }
    
    .glass-navbar-link {
        padding: 6px 12px;
        font-size: 14px;
    }
    
    .glass-button {
        padding: 10px 20px;
        font-size: 14px;
    }
    
    .glass-modal-content {
        padding: 24px;
        margin: 16px;
    }
}

@media (max-width: 480px) {
    .glass-card {
        padding: 12px;
    }
    
    .glass-button {
        padding: 8px 16px;
        font-size: 13px;
    }
    
    .glass-modal-content {
        padding: 20px;
        margin: 12px;
    }
}