/* style.css */
:root {
    --primary-color: #ff6b9d;
    --secondary-color: #5d9cec;
    --danger-color: #ff4757;
    --success-color: #2ed573;
    --warning-color: #ffa502;
    --info-color: #1e90ff;
    --light-color: #f8f9fa;
    --dark-color: #343a40;
    --border-radius: 20px;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --shadow: 0 10px 40px rgba(0, 0, 0, 0.1);
    --gradient: linear-gradient(135deg, #ff6b9d 0%, #ff8e53 100%);
}

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

body {
    font-family: 'Arial Rounded MT Bold', 'Helvetica Rounded', Arial, sans-serif;
    background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
    min-height: 100vh;
    padding-bottom: 80px;
    overflow-x: hidden;
}

/* 登录页面 */
.login-container {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    background: linear-gradient(45deg, #ff9a9e 0%, #fad0c4 100%);
    padding: 20px;
}

.login-box {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-radius: 30px;
    padding: 40px;
    width: 100%;
    max-width: 400px;
    box-shadow: 0 20px 60px rgba(255, 107, 157, 0.3);
    transform: translateY(0);
    animation: float 3s ease-in-out infinite;
    border: 2px solid rgba(255, 255, 255, 0.2);
}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

.login-title {
    text-align: center;
    color: var(--primary-color);
    font-size: 28px;
    margin-bottom: 30px;
    font-weight: bold;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.1);
}

.form-group {
    margin-bottom: 20px;
    position: relative;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    color: #666;
    font-weight: bold;
}

.form-control {
    width: 100%;
    padding: 15px 20px;
    border: 2px solid #e0e0e0;
    border-radius: 15px;
    font-size: 16px;
    transition: var(--transition);
    background: rgba(255, 255, 255, 0.9);
}

.form-control:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(255, 107, 157, 0.2);
    transform: translateY(-2px);
}

.checkbox-group {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 25px;
}

.checkbox-group input[type="checkbox"] {
    width: 20px;
    height: 20px;
    border-radius: 5px;
    cursor: pointer;
}

.btn {
    width: 100%;
    padding: 16px;
    border: none;
    border-radius: 15px;
    font-size: 18px;
    font-weight: bold;
    cursor: pointer;
    transition: var(--transition);
    background: var(--gradient);
    color: white;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 20px rgba(255, 107, 157, 0.3);
}

.btn:active {
    transform: translateY(-1px);
}

.error-message {
    background: rgba(255, 71, 87, 0.1);
    color: var(--danger-color);
    padding: 12px;
    border-radius: 10px;
    margin-bottom: 20px;
    text-align: center;
    border: 1px solid rgba(255, 71, 87, 0.2);
    animation: shake 0.5s;
}

@keyframes shake {
    0%, 100% { transform: translateX(0); }
    25% { transform: translateX(-5px); }
    75% { transform: translateX(5px); }
}

/* 主页面 */
.header {
    background: linear-gradient(135deg, var(--primary-color), #ff8e53);
    padding: 20px;
    border-radius: 0 0 30px 30px;
    color: white;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('../images/hearts.png');
    opacity: 0.1;
    animation: floatHearts 20s linear infinite;
}

@keyframes floatHearts {
    0% { transform: translateY(0); }
    100% { transform: translateY(-100%); }
}

.site-title {
    font-size: 24px;
    margin-bottom: 15px;
    position: relative;
    z-index: 1;
}

.love-time-box {
    background: rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(10px);
    border-radius: 20px;
    padding: 15px;
    margin: 20px auto;
    max-width: 300px;
    position: relative;
    border: 2px solid rgba(255, 255, 255, 0.3);
}

.love-timer {
    font-size: 28px;
    font-weight: bold;
    text-align: center;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

.couple-avatars {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 20px;
    position: relative;
}

.avatar-container {
    text-align: center;
    position: relative;
}

.avatar {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    border: 4px solid;
    padding: 3px;
    background: white;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.avatar:hover {
    transform: scale(1.1);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.2);
}

.avatar::after {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: linear-gradient(45deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    transform: rotate(45deg);
    animation: shine 3s infinite;
}

@keyframes shine {
    0% { transform: translateX(-100%) translateY(-100%) rotate(45deg); }
    100% { transform: translateX(100%) translateY(100%) rotate(45deg); }
}

.avatar-left {
    border-color: #3498db !important;
}

.avatar-right {
    border-color: #e84393 !important;
}

.avatar-name {
    margin-top: 10px;
    font-weight: bold;
    color: white;
}

.love-days {
    color: #ffeaa7;
    font-size: 14px;
    margin-top: 5px;
}

.connection-line {
    position: absolute;
    top: 40px;
    left: 50%;
    transform: translateX(-50%);
    width: 100px;
    height: 4px;
    background: linear-gradient(90deg, #3498db, #e84393);
    border-radius: 2px;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

/* 签到按钮 */
.sign-btn-container {
    text-align: center;
    margin: 30px 0;
    position: relative;
}

.sign-btn {
    width: 120px;
    height: 120px;
    border-radius: 50%;
    background: var(--gradient);
    color: white;
    border: none;
    font-size: 18px;
    font-weight: bold;
    cursor: pointer;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
    box-shadow: 0 15px 30px rgba(255, 107, 157, 0.3);
}

.sign-btn:hover:not(.signed) {
    transform: scale(1.1) rotate(5deg);
    box-shadow: 0 20px 40px rgba(255, 107, 157, 0.4);
}

.sign-btn::before {
    content: '💖';
    font-size: 40px;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    animation: heartbeat 1.5s infinite;
}

@keyframes heartbeat {
    0%, 100% { transform: translate(-50%, -50%) scale(1); }
    50% { transform: translate(-50%, -50%) scale(1.1); }
}

.sign-btn.signed {
    background: #b2bec3;
    cursor: not-allowed;
    transform: none;
}

/* 纪念日板块 */
.anniversary-section {
    background: white;
    margin: 20px;
    padding: 20px;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    transform: translateY(0);
    transition: var(--transition);
}

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

.section-title {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 20px;
    color: var(--dark-color);
}

.section-title i {
    font-size: 24px;
}

.add-btn {
    background: var(--gradient);
    color: white;
    border: none;
    padding: 10px 20px;
    border-radius: 50px;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    gap: 8px;
    margin: 0 auto;
}

.add-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(255, 107, 157, 0.3);
}

.anniversary-list {
    display: flex;
    flex-direction: column;
    gap: 15px;
    margin-top: 20px;
}

.anniversary-item {
    background: #f8f9fa;
    padding: 15px;
    border-radius: 15px;
    border-left: 4px solid var(--primary-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: var(--transition);
}

.anniversary-item:hover {
    background: #e9ecef;
    transform: translateX(5px);
}

.anniversary-info h4 {
    color: var(--dark-color);
    margin-bottom: 5px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.anniversary-date {
    color: #666;
    font-size: 14px;
}

.anniversary-days {
    color: var(--primary-color);
    font-weight: bold;
    font-size: 18px;
}

/* 底部导航 */
.bottom-nav {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: white;
    box-shadow: 0 -5px 20px rgba(0, 0, 0, 0.1);
    border-radius: 30px 30px 0 0;
    padding: 15px 0;
    z-index: 1000;
}

.nav-items {
    display: flex;
    justify-content: space-around;
    list-style: none;
}

.nav-item {
    text-align: center;
    cursor: pointer;
    transition: var(--transition);
    position: relative;
    flex: 1;
}

.nav-item.active .nav-icon,
.nav-item.active .nav-text {
    color: var(--primary-color);
}

.nav-icon {
    font-size: 24px;
    margin-bottom: 5px;
    transition: var(--transition);
    color: #666;
}

.nav-text {
    font-size: 12px;
    color: #666;
    transition: var(--transition);
}

.nav-item:hover .nav-icon,
.nav-item:hover .nav-text {
    color: var(--primary-color);
}

.nav-item.active::after {
    content: '';
    position: absolute;
    top: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 6px;
    height: 6px;
    background: var(--primary-color);
    border-radius: 50%;
    animation: bounce 0.5s;
}

@keyframes bounce {
    0%, 100% { transform: translateX(-50%) translateY(0); }
    50% { transform: translateX(-50%) translateY(-5px); }
}

/* 发现页面 */
.discover-section {
    padding: 20px;
}

.recording-section,
.posts-section {
    background: white;
    border-radius: var(--border-radius);
    padding: 20px;
    margin-bottom: 20px;
    box-shadow: var(--shadow);
}

.recording-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 15px;
    margin-top: 20px;
}

.recording-item {
    aspect-ratio: 1;
    background: #f8f9fa;
    border-radius: 15px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    cursor: pointer;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.recording-item:hover {
    background: var(--gradient);
    color: white;
    transform: translateY(-5px);
}

.recording-item::before {
    content: '▶';
    font-size: 30px;
    margin-bottom: 10px;
}

/* 帖子样式 */
.posts-container {
    margin-top: 20px;
}

.post-item {
    background: white;
    border-radius: 20px;
    padding: 20px;
    margin-bottom: 20px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    transition: var(--transition);
    border: 1px solid #eee;
}

.post-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.15);
}

.post-header {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-bottom: 15px;
}

.post-avatar {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    border: 2px solid var(--primary-color);
    padding: 2px;
}

.post-meta {
    flex: 1;
}

.post-author {
    font-weight: bold;
    color: var(--dark-color);
    margin-bottom: 5px;
}

.post-time {
    color: #666;
    font-size: 14px;
}

.post-ip {
    color: #888;
    font-size: 12px;
}

.post-content {
    margin: 15px 0;
}

.post-content h3 {
    color: var(--dark-color);
    margin-bottom: 10px;
}

.post-content p {
    color: #555;
    line-height: 1.6;
}

.read-more {
    color: var(--primary-color);
    cursor: pointer;
    font-weight: bold;
    margin-top: 5px;
    display: inline-block;
}

.media-preview {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
    gap: 10px;
    margin-top: 15px;
}

.media-item {
    border-radius: 10px;
    overflow: hidden;
    aspect-ratio: 1;
    background: #f8f9fa;
    cursor: pointer;
    transition: var(--transition);
}

.media-item:hover {
    transform: scale(1.05);
}

.post-actions {
    display: flex;
    justify-content: flex-end;
    gap: 15px;
    margin-top: 15px;
    padding-top: 15px;
    border-top: 1px solid #eee;
}

.action-btn {
    background: none;
    border: none;
    color: #666;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 5px;
    transition: var(--transition);
    padding: 8px 15px;
    border-radius: 20px;
}

.action-btn:hover {
    background: #f8f9fa;
    color: var(--primary-color);
}

.delete-btn {
    color: var(--danger-color);
}

.delete-btn:hover {
    background: rgba(255, 71, 87, 0.1);
}

/* 相册页面 */
.album-section {
    padding: 20px;
}

.upload-buttons {
    position: fixed;
    bottom: 100px;
    right: 20px;
    display: flex;
    gap: 10px;
    z-index: 100;
}

.floating-btn {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    border: none;
    background: var(--gradient);
    color: white;
    font-size: 24px;
    cursor: pointer;
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.2);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.floating-btn::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.3);
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

.floating-btn:hover {
    transform: scale(1.1) rotate(10deg);
}

.floating-btn:active::after {
    width: 300px;
    height: 300px;
}

.album-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 15px;
    margin-top: 20px;
}

.album-item {
    aspect-ratio: 1;
    border-radius: 20px;
    overflow: hidden;
    position: relative;
    cursor: pointer;
    transition: var(--transition);
}

.album-item:hover {
    transform: scale(1.05) rotate(2deg);
}

.album-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(to top, rgba(0,0,0,0.5), transparent);
    opacity: 0;
    transition: var(--transition);
}

.album-item:hover::before {
    opacity: 1;
}

.album-date {
    position: absolute;
    bottom: 10px;
    left: 10px;
    color: white;
    font-size: 12px;
    opacity: 0;
    transition: var(--transition);
    text-shadow: 1px 1px 2px rgba(0,0,0,0.5);
}

.album-item:hover .album-date {
    opacity: 1;
}

/* 我们页面 */
.us-section {
    padding: 20px;
    text-align: center;
}

.us-header {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 30px;
    margin-bottom: 40px;
    position: relative;
}

.us-header::before {
    content: '❤';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: 40px;
    color: var(--primary-color);
    animation: heartbeat 1.5s infinite;
}

.us-avatar {
    width: 100px;
    height: 100px;
    border-radius: 50%;
    border: 4px solid;
    padding: 3px;
    background: white;
}

.us-name {
    margin-top: 10px;
    font-weight: bold;
    color: var(--dark-color);
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
    margin-bottom: 30px;
}

.stat-box {
    background: white;
    padding: 20px;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    transition: var(--transition);
}

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

.stat-box h3 {
    color: #666;
    margin-bottom: 10px;
    font-size: 14px;
}

.stat-box .stat-number {
    font-size: 32px;
    font-weight: bold;
    color: var(--primary-color);
    text-shadow: 2px 2px 4px rgba(0,0,0,0.1);
}

.menu-list {
    display: flex;
    flex-direction: column;
    gap: 15px;
    margin-top: 30px;
}

.menu-item {
    background: white;
    padding: 20px;
    border-radius: var(--border-radius);
    display: flex;
    align-items: center;
    gap: 15px;
    cursor: pointer;
    transition: var(--transition);
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
}

.menu-item:hover {
    background: var(--gradient);
    color: white;
    transform: translateX(10px);
}

.menu-item:hover .menu-icon {
    transform: scale(1.2) rotate(10deg);
}

.menu-icon {
    font-size: 24px;
    transition: var(--transition);
}

.menu-text {
    flex: 1;
    text-align: left;
    font-weight: bold;
}

/* 弹窗样式 */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(5px);
    z-index: 2000;
    justify-content: center;
    align-items: center;
    animation: fadeIn 0.3s;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

.modal-content {
    background: white;
    border-radius: 30px;
    padding: 30px;
    max-width: 500px;
    width: 90%;
    max-height: 80vh;
    overflow-y: auto;
    position: relative;
    animation: slideUp 0.4s cubic-bezier(0.18, 0.89, 0.32, 1.28);
}

@keyframes slideUp {
    from { transform: translateY(100px); opacity: 0; }
    to { transform: translateY(0); opacity: 1; }
}

.modal-close {
    position: absolute;
    top: 15px;
    right: 15px;
    width: 30px;
    height: 30px;
    border-radius: 50%;
    border: none;
    background: #f8f9fa;
    color: #666;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
}

.modal-close:hover {
    background: var(--danger-color);
    color: white;
    transform: rotate(90deg);
}

.modal-title {
    color: var(--dark-color);
    margin-bottom: 20px;
    text-align: center;
}

.warning-modal .modal-content {
    border: 3px solid var(--danger-color);
    animation: shakeModal 0.5s;
}

@keyframes shakeModal {
    0%, 100% { transform: translateX(0); }
    25% { transform: translateX(-10px); }
    75% { transform: translateX(10px); }
}

.confirm-btn {
    background: var(--danger-color);
    color: white;
    border: none;
    padding: 12px 30px;
    border-radius: 25px;
    cursor: pointer;
    transition: var(--transition);
    font-weight: bold;
}

.confirm-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.confirm-btn:not(:disabled):hover {
    background: #ff2e43;
    transform: translateY(-2px);
}

.timer-display {
    color: var(--danger-color);
    font-weight: bold;
    margin-left: 10px;
}

/* 加载动画 */
.loading {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid #f3f3f3;
    border-top: 3px solid var(--primary-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* 响应式设计 */
@media (max-width: 768px) {
    .recording-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .us-header {
        flex-direction: column;
        gap: 20px;
    }
    
    .avatar {
        width: 60px;
        height: 60px;
    }
    
    .sign-btn {
        width: 100px;
        height: 100px;
        font-size: 16px;
    }
}

@media (max-width: 480px) {
    .login-box {
        padding: 30px 20px;
    }
    
    .recording-grid {
        grid-template-columns: 1fr;
    }
    
    .album-grid {
        grid-template-columns: 1fr;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
    }
}