/* ============================================
   iOS 液态玻璃风格样式
   ============================================ */

:root {
    --primary: #ff6b9d;
    --primary-dark: #e84a7a;
    --primary-light: #ffa8c5;
    --secondary: #a78bfa;
    --success: #34c759;
    --error: #ff3b30;
    --warning: #ff9500;
    --text: #1c1c1e;
    --text-secondary: #6e6e73;
    --text-tertiary: #aeaeb2;
    
    --glass-bg: rgba(255, 255, 255, 0.55);
    --glass-bg-strong: rgba(255, 255, 255, 0.72);
    --glass-border: rgba(255, 255, 255, 0.6);
    --glass-shadow: 0 8px 32px rgba(0, 0, 0, 0.08);
    --glass-shadow-hover: 0 12px 40px rgba(0, 0, 0, 0.15);
    
    --blur: blur(20px);
    --blur-strong: blur(30px);
    --radius-sm: 12px;
    --radius: 20px;
    --radius-lg: 28px;
    --radius-xl: 36px;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
    font-family: -apple-system, BlinkMacSystemFont, 'SF Pro Display', 'PingFang SC', 'Helvetica Neue', sans-serif;
    color: var(--text);
    min-height: 100vh;
    background: linear-gradient(135deg, #fce4ec 0%, #f3e5f5 25%, #e8eaf6 50%, #e0f7fa 75%, #f1f8e9 100%);
    background-attachment: fixed;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}

/* 背景渐变装饰 */
.bg-gradient {
    position: fixed;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    z-index: -1;
    background: 
        radial-gradient(circle at 20% 30%, rgba(255, 107, 157, 0.15) 0%, transparent 40%),
        radial-gradient(circle at 80% 20%, rgba(167, 139, 250, 0.15) 0%, transparent 40%),
        radial-gradient(circle at 50% 80%, rgba(52, 199, 89, 0.1) 0%, transparent 40%),
        radial-gradient(circle at 70% 70%, rgba(255, 149, 0, 0.1) 0%, transparent 30%);
    animation: bgShift 20s ease-in-out infinite;
}

@keyframes bgShift {
    0%, 100% { transform: translate(0, 0) rotate(0deg); }
    33% { transform: translate(2%, 1%) rotate(1deg); }
    66% { transform: translate(-1%, 2%) rotate(-1deg); }
}

.main-wrapper {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* ============ 玻璃头部 ============ */
.glass-header {
    position: sticky;
    top: 12px;
    z-index: 1000;
    margin: 12px 16px 0;
    background: var(--glass-bg);
    backdrop-filter: var(--blur-strong);
    -webkit-backdrop-filter: var(--blur-strong);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    box-shadow: var(--glass-shadow);
}

.header-inner {
    max-width: 1200px;
    margin: 0 auto;
    padding: 12px 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 15px;
}

.site-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
    color: var(--text);
    font-weight: 700;
    font-size: 18px;
    white-space: nowrap;
}

.site-logo i {
    font-size: 24px;
    color: var(--primary);
    animation: heartBeat 1.5s ease-in-out infinite;
}

@keyframes heartBeat {
    0%, 100% { transform: scale(1); }
    25% { transform: scale(1.15); }
    40% { transform: scale(1); }
    55% { transform: scale(1.15); }
}

/* ============ 玻璃导航 ============ */
.glass-nav ul {
    display: flex;
    gap: 4px;
    align-items: center;
    list-style: none;
}

.glass-nav li a {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 8px 14px;
    border-radius: var(--radius-sm);
    text-decoration: none;
    color: var(--text-secondary);
    font-size: 14px;
    font-weight: 500;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    white-space: nowrap;
}

.glass-nav li a:hover {
    background: rgba(255, 255, 255, 0.5);
    color: var(--text);
    transform: translateY(-1px);
}

.glass-nav li a.active {
    background: var(--primary);
    color: white;
    box-shadow: 0 4px 15px rgba(255, 107, 157, 0.35);
}

.glass-nav li a i {
    font-size: 16px;
}

.btn-login, .btn-logout {
    background: var(--primary) !important;
    color: white !important;
    width: 36px;
    height: 36px;
    padding: 0 !important;
    justify-content: center;
    border-radius: 50% !important;
}

/* ============ 主内容区 ============ */
.site-main {
    flex: 1;
    padding: 24px 16px;
    max-width: 1200px;
    margin: 0 auto;
    width: 100%;
}

/* ============ 玻璃卡片 ============ */
.glass-card {
    background: var(--glass-bg);
    backdrop-filter: var(--blur);
    -webkit-backdrop-filter: var(--blur);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius);
    box-shadow: var(--glass-shadow);
    padding: 28px;
    margin-bottom: 20px;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.glass-card:hover {
    box-shadow: var(--glass-shadow-hover);
    background: var(--glass-bg-strong);
}

/* ============ 页面头部 ============ */
.page-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 24px;
    flex-wrap: wrap;
    gap: 15px;
}

.page-header h2 {
    font-size: 28px;
    font-weight: 800;
    color: var(--text);
    display: flex;
    align-items: center;
    gap: 12px;
}

.page-header h2 i {
    font-size: 30px;
    color: var(--primary);
}

/* ============ 按钮 ============ */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 22px;
    border: none;
    border-radius: var(--radius-sm);
    cursor: pointer;
    font-size: 15px;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    color: white;
    background: var(--primary);
}

.btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(255, 107, 157, 0.4);
    color: white;
}

.btn:active { transform: scale(0.96); }

.btn-secondary {
    background: var(--text-secondary);
}

.btn-success { background: var(--success); }
.btn-danger { background: var(--error); }

.btn-sm { padding: 7px 14px; font-size: 13px; }
.btn-lg { padding: 16px 32px; font-size: 18px; }
.btn-block { width: 100%; justify-content: center; }

/* ============ 表单 ============ */
.form-group { margin-bottom: 20px; }

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    font-size: 14px;
    color: var(--text-secondary);
}

.form-group label i {
    color: var(--primary);
    margin-right: 8px;
}

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 14px 18px;
    border: 1px solid rgba(255, 255, 255, 0.5);
    border-radius: var(--radius-sm);
    font-size: 15px;
    background: rgba(255, 255, 255, 0.6);
    backdrop-filter: blur(10px);
    transition: all 0.3s;
    color: var(--text);
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 4px rgba(255, 107, 157, 0.15);
    background: rgba(255, 255, 255, 0.8);
}

/* ============ 恋爱计时 ============ */
.love-timer {
    text-align: center;
    padding: 40px 24px;
}

.couple-avatars {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 30px;
    margin-bottom: 30px;
}

.avatar {
    text-align: center;
    transition: transform 0.3s;
}

.avatar:hover { transform: translateY(-5px); }

.avatar img {
    width: 100px;
    height: 100px;
    border-radius: 50%;
    object-fit: cover;
    border: 3px solid var(--glass-border);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.1);
    margin-bottom: 10px;
    background: #e0e0e0;
}

.avatar span {
    font-weight: 600;
    font-size: 16px;
}

.heart-icon {
    font-size: 40px;
    color: var(--primary);
    animation: heartBeat 1.5s ease-in-out infinite;
}

.days-number {
    font-size: 72px;
    font-weight: 900;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1;
}

.love-days-display h2 {
    font-size: 22px;
    color: var(--text-secondary);
    margin-bottom: 10px;
    font-weight: 600;
}

.love-days-display p {
    font-size: 18px;
    color: var(--text-tertiary);
    margin-top: 8px;
}

.love-start-date {
    display: inline-block;
    margin-top: 20px;
    padding: 8px 20px;
    background: rgba(255, 255, 255, 0.4);
    border-radius: 20px;
    font-size: 14px;
    color: var(--text-secondary);
}

/* ============ 心情 ============ */
.mood-form {
    display: flex;
    gap: 10px;
    margin-bottom: 20px;
}

.mood-form input {
    flex: 1;
    padding: 14px 18px;
    border: 1px solid rgba(255, 255, 255, 0.5);
    border-radius: var(--radius-sm);
    background: rgba(255, 255, 255, 0.6);
    font-size: 15px;
}

.mood-form input:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 4px rgba(255, 107, 157, 0.15);
}

.mood-item {
    background: rgba(255, 255, 255, 0.4);
    border-radius: var(--radius-sm);
    padding: 16px;
    margin-bottom: 10px;
    backdrop-filter: blur(10px);
}

.mood-user {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 600;
    margin-bottom: 8px;
}

.mood-user img {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: #e0e0e0;
}

.mood-text { font-size: 15px; }

.mood-time {
    font-size: 12px;
    color: var(--text-tertiary);
    margin-top: 8px;
}

/* ============ 照片网格 ============ */
.photo-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 16px;
}

.photo-item, .photo-card {
    border-radius: var(--radius-sm);
    overflow: hidden;
    background: rgba(255, 255, 255, 0.5);
    backdrop-filter: blur(10px);
    border: 1px solid var(--glass-border);
    transition: all 0.3s;
}

.photo-item:hover, .photo-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--glass-shadow-hover);
}

.photo-item img, .photo-card img {
    width: 100%;
    height: 180px;
    object-fit: cover;
}

.photo-caption {
    padding: 12px;
    font-size: 14px;
}

.photo-meta {
    display: flex;
    justify-content: space-between;
    padding: 8px 12px;
    font-size: 12px;
    color: var(--text-tertiary);
}

.featured-badge {
    position: absolute;
    top: 10px;
    right: 10px;
    background: rgba(255, 215, 0, 0.9);
    padding: 4px 10px;
    border-radius: 12px;
    font-size: 11px;
    font-weight: 600;
}

/* ============ 提示框 ============ */
.alert {
    padding: 14px 18px;
    border-radius: var(--radius-sm);
    margin-bottom: 16px;
    display: flex;
    align-items: center;
    gap: 10px;
    backdrop-filter: blur(10px);
    font-size: 14px;
}

.alert-success {
    background: rgba(52, 199, 89, 0.15);
    color: #1a7f37;
    border: 1px solid rgba(52, 199, 89, 0.3);
}

.alert-error {
    background: rgba(255, 59, 48, 0.15);
    color: #c62828;
    border: 1px solid rgba(255, 59, 48, 0.3);
}

.login-hint {
    background: rgba(255, 149, 0, 0.15);
    border: 1px solid rgba(255, 149, 0, 0.3);
    padding: 12px 16px;
    border-radius: var(--radius-sm);
    color: #b86e00;
    margin: 12px 0;
}

.no-data {
    text-align: center;
    padding: 40px;
    color: var(--text-tertiary);
}

.no-data i {
    font-size: 48px;
    margin-bottom: 15px;
    display: block;
}

/* ============ 登录页 ============ */
.login-container {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: calc(100vh - 200px);
    padding: 20px;
}

.login-box {
    background: var(--glass-bg-strong);
    backdrop-filter: var(--blur-strong);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    box-shadow: var(--glass-shadow-hover);
    padding: 40px;
    width: 100%;
    max-width: 400px;
    animation: fadeUp 0.5s ease-out;
}

@keyframes fadeUp {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

.login-header {
    text-align: center;
    margin-bottom: 30px;
}

.login-header i {
    font-size: 48px;
    color: var(--primary);
    margin-bottom: 15px;
    animation: heartBeat 1.5s infinite;
}

.login-header h2 {
    font-size: 24px;
    margin-bottom: 5px;
}

.login-header p {
    color: var(--text-secondary);
    font-size: 14px;
}

/* ============ 愿望清单 ============ */
.wish-item {
    display: flex;
    align-items: center;
    gap: 15px;
    padding: 18px;
    background: rgba(255, 255, 255, 0.4);
    border-radius: var(--radius-sm);
    margin-bottom: 12px;
    backdrop-filter: blur(10px);
    transition: all 0.3s;
}

.wish-item:hover {
    background: rgba(255, 255, 255, 0.6);
    transform: translateX(5px);
}

.wish-item.completed {
    opacity: 0.6;
}

.wish-icon {
    font-size: 24px;
    color: var(--primary);
}

.wish-item.completed .wish-icon { color: var(--success); }

.wish-content h3 {
    font-size: 16px;
    margin-bottom: 4px;
}

.wish-meta {
    display: flex;
    gap: 15px;
    font-size: 12px;
    color: var(--text-tertiary);
}

/* ============ 胶囊 ============ */
.capsule-item {
    display: flex;
    gap: 20px;
    padding: 22px;
    background: rgba(255, 255, 255, 0.4);
    border-radius: var(--radius);
    margin-bottom: 15px;
    backdrop-filter: blur(10px);
    border: 1px solid var(--glass-border);
}

.capsule-icon {
    font-size: 36px;
    color: var(--primary);
    flex-shrink: 0;
}

.capsule-meta {
    display: flex;
    gap: 15px;
    flex-wrap: wrap;
    font-size: 13px;
    color: var(--text-secondary);
    margin: 10px 0;
}

.capsule-detail {
    background: rgba(255, 255, 255, 0.5);
    padding: 16px;
    border-radius: var(--radius-sm);
    margin-top: 12px;
    line-height: 1.7;
}

.capsule-locked-hint {
    color: var(--warning);
    font-size: 14px;
    margin-top: 10px;
}

/* ============ 统计卡片 ============ */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
    gap: 16px;
}

.stat-card {
    text-align: center;
    padding: 24px;
    background: rgba(255, 255, 255, 0.5);
    border-radius: var(--radius);
    backdrop-filter: blur(10px);
    border: 1px solid var(--glass-border);
    transition: all 0.3s;
}

.stat-card:hover {
    transform: translateY(-4px);
    background: rgba(255, 255, 255, 0.7);
}

.stat-card i {
    font-size: 32px;
    color: var(--primary);
    margin-bottom: 10px;
}

.stat-number {
    font-size: 32px;
    font-weight: 800;
    display: block;
}

.stat-label {
    font-size: 13px;
    color: var(--text-secondary);
}

/* ============ 个人中心 ============ */
.profile-card {
    max-width: 500px;
    margin: 0 auto;
    overflow: hidden;
}

.profile-header {
    display: flex;
    align-items: center;
    gap: 20px;
    padding: 30px;
    background: linear-gradient(135deg, rgba(255, 107, 157, 0.2), rgba(167, 139, 250, 0.2));
}

.profile-avatar img {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    border: 3px solid white;
    box-shadow: 0 4px 15px rgba(0,0,0,0.1);
    background: #e0e0e0;
}

.profile-details {
    padding: 25px;
}

.detail-item {
    display: flex;
    justify-content: space-between;
    padding: 14px 0;
    border-bottom: 1px solid rgba(0,0,0,0.05);
    font-size: 14px;
}

.detail-label {
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    gap: 8px;
}

.detail-label i { color: var(--primary); }

.detail-value { font-weight: 600; }

/* ============ 底部 ============ */
.glass-footer {
    margin: 12px 16px;
    background: var(--glass-bg);
    backdrop-filter: var(--blur);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    padding: 20px;
    text-align: center;
    color: var(--text-secondary);
    font-size: 13px;
}

.glass-footer i {
    color: var(--primary);
    animation: heartBeat 1.5s infinite;
}

.love-days {
    color: var(--primary);
    font-weight: 600;
}

/* ============ Toast ============ */
.toast-container {
    position: fixed;
    top: 80px;
    right: 16px;
    z-index: 9999;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.toast {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 14px 20px;
    background: var(--glass-bg-strong);
    backdrop-filter: var(--blur-strong);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-sm);
    box-shadow: var(--glass-shadow-hover);
    font-size: 14px;
    animation: slideIn 0.3s ease-out;
}

@keyframes slideIn {
    from { opacity: 0; transform: translateX(100%); }
    to { opacity: 1; transform: translateX(0); }
}

.toast-success i { color: var(--success); }
.toast-error i { color: var(--error); }

/* ============ 响应式 ============ */
@media (max-width: 768px) {
    .glass-header {
        top: 8px;
        margin: 8px 8px 0;
    }
    
    .header-inner {
        flex-direction: column;
        padding: 10px 15px;
        gap: 10px;
    }
    
    .glass-nav ul {
        flex-wrap: wrap;
        justify-content: center;
    }
    
    .glass-nav li a {
        padding: 7px 10px;
        font-size: 12px;
    }
    
    .glass-nav li a span { display: none; }
    .glass-nav li a i { font-size: 18px; }
    
    .site-main { padding: 16px 8px; }
    
    .days-number { font-size: 52px; }
    
    .couple-avatars { gap: 20px; }
    .avatar img { width: 70px; height: 70px; }
    
    .glass-card { padding: 20px; }
    
    .photo-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 10px;
    }
    
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 10px;
    }
    
    .mood-form { flex-direction: column; }
    
    .login-box { padding: 25px 20px; }
}