/* ========== 基础重置与变量 ========== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --bg-primary: #0f0c29;
    --bg-secondary: #302b63;
    --bg-accent: #24243e;
    --text-primary: #ffffff;
    --text-secondary: #b0b0c0;
    --card-bg: rgba(255, 255, 255, 0.08);
    --card-border: rgba(255, 255, 255, 0.12);
    --card-hover: rgba(255, 255, 255, 0.15);
    --accent-blue: #4facfe;
    --accent-cyan: #00f2fe;
    --accent-orange: #f093fb;
    --accent-green: #43e97b;
    --shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
    --radius: 16px;
    --radius-sm: 12px;
    --transition: all 0.3s ease;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
    background: linear-gradient(135deg, var(--bg-primary), var(--bg-secondary), var(--bg-accent));
    color: var(--text-primary);
    min-height: 100vh;
    overflow-x: hidden;
    position: relative;
}

/* ========== 天气动画背景 ========== */
.weather-bg {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 0;
    overflow: hidden;
}

.rain-drop {
    position: absolute;
    width: 2px;
    background: linear-gradient(transparent, rgba(174, 194, 224, 0.6));
    animation: rain-fall linear infinite;
}

@keyframes rain-fall {
    0% { transform: translateY(-100vh); opacity: 0; }
    10% { opacity: 1; }
    90% { opacity: 1; }
    100% { transform: translateY(100vh); opacity: 0; }
}

.snowflake {
    position: absolute;
    width: 8px;
    height: 8px;
    background: white;
    border-radius: 50%;
    opacity: 0.8;
    animation: snow-fall linear infinite;
}

@keyframes snow-fall {
    0% { transform: translateY(-10vh) rotate(0deg); opacity: 0; }
    10% { opacity: 0.8; }
    90% { opacity: 0.8; }
    100% { transform: translateY(100vh) rotate(360deg); opacity: 0; }
}

.cloud {
    position: absolute;
    background: rgba(255, 255, 255, 0.15);
    border-radius: 50px;
    animation: cloud-drift linear infinite;
}

.cloud::before,
.cloud::after {
    content: '';
    position: absolute;
    background: inherit;
    border-radius: 50%;
}

.cloud::before {
    width: 60%;
    height: 120%;
    top: -50%;
    left: 20%;
}

.cloud::after {
    width: 40%;
    height: 90%;
    top: -35%;
    right: 20%;
}

@keyframes cloud-drift {
    0% { transform: translateX(-200px); }
    100% { transform: translateX(calc(100vw + 200px)); }
}

.sun-ray {
    position: absolute;
    top: -50px;
    right: -50px;
    width: 200px;
    height: 200px;
    background: radial-gradient(circle, rgba(255, 200, 50, 0.3), transparent 70%);
    border-radius: 50%;
    animation: sun-pulse 3s ease-in-out infinite;
}

@keyframes sun-pulse {
    0%, 100% { transform: scale(1); opacity: 0.6; }
    50% { transform: scale(1.3); opacity: 1; }
}

.star {
    position: absolute;
    width: 3px;
    height: 3px;
    background: white;
    border-radius: 50%;
    animation: twinkle 2s ease-in-out infinite;
}

@keyframes twinkle {
    0%, 100% { opacity: 0.3; }
    50% { opacity: 1; }
}

/* ========== 容器 ========== */
.container {
    position: relative;
    z-index: 1;
    max-width: 900px;
    margin: 0 auto;
    padding: 20px;
}

/* ========== 头部 ========== */
.header {
    text-align: center;
    padding: 30px 0 20px;
}

.header-top {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 16px;
    margin-bottom: 20px;
    position: relative;
}

.title {
    font-size: 2.2rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--accent-blue), var(--accent-cyan));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.settings-btn {
    background: var(--card-bg);
    border: 2px solid var(--card-border);
    border-radius: 50%;
    width: 42px;
    height: 42px;
    font-size: 1.2rem;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
    backdrop-filter: blur(10px);
}

.settings-btn:hover {
    background: var(--card-hover);
    transform: rotate(90deg);
    border-color: var(--accent-blue);
}

/* 数据源标识 */
.provider-badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 4px 14px;
    background: rgba(79, 172, 254, 0.15);
    border: 1px solid rgba(79, 172, 254, 0.3);
    border-radius: 20px;
    font-size: 0.8rem;
    color: var(--accent-blue);
    margin-bottom: 16px;
    cursor: pointer;
    transition: var(--transition);
}

.provider-badge:hover {
    background: rgba(79, 172, 254, 0.25);
}

.provider-badge.hidden {
    display: none !important;
}

.search-box {
    display: flex;
    gap: 8px;
    max-width: 500px;
    margin: 0 auto;
    position: relative;
}

.search-box input {
    flex: 1;
    padding: 14px 20px;
    border: 2px solid var(--card-border);
    border-radius: var(--radius);
    background: var(--card-bg);
    color: var(--text-primary);
    font-size: 1rem;
    outline: none;
    transition: var(--transition);
    backdrop-filter: blur(10px);
}

.search-box input:focus {
    border-color: var(--accent-blue);
    box-shadow: 0 0 20px rgba(79, 172, 254, 0.2);
}

.search-box input::placeholder {
    color: var(--text-secondary);
}

.search-box button {
    padding: 14px 24px;
    border: none;
    border-radius: var(--radius);
    font-size: 1rem;
    cursor: pointer;
    transition: var(--transition);
    font-weight: 600;
}

#search-btn {
    background: linear-gradient(135deg, var(--accent-blue), var(--accent-cyan));
    color: #fff;
}

#search-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(79, 172, 254, 0.4);
}

#location-btn {
    background: var(--card-bg);
    color: var(--text-primary);
    font-size: 1.2rem;
    backdrop-filter: blur(10px);
    border: 2px solid var(--card-border);
}

#location-btn:hover {
    background: var(--card-hover);
    transform: translateY(-2px);
}

/* 搜索建议 */
.suggestions {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: rgba(30, 30, 60, 0.95);
    border-radius: var(--radius-sm);
    margin-top: 4px;
    overflow: hidden;
    z-index: 100;
    backdrop-filter: blur(20px);
    border: 1px solid var(--card-border);
    box-shadow: var(--shadow);
}

.suggestions.hidden {
    display: none;
}

.suggestion-item {
    padding: 12px 20px;
    cursor: pointer;
    transition: var(--transition);
    border-bottom: 1px solid var(--card-border);
    display: flex;
    align-items: center;
    gap: 10px;
}

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

.suggestion-item:hover {
    background: var(--card-hover);
}

.suggestion-item .country {
    color: var(--text-secondary);
    font-size: 0.85rem;
}

/* ========== 加载与错误 ========== */
.loading {
    text-align: center;
    padding: 60px 0;
}

.loading.hidden {
    display: none;
}

.spinner {
    width: 50px;
    height: 50px;
    border: 4px solid var(--card-border);
    border-top-color: var(--accent-blue);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
    margin: 0 auto 16px;
}

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

.loading p {
    color: var(--text-secondary);
    font-size: 1.1rem;
}

.error-msg {
    text-align: center;
    padding: 20px;
    background: rgba(255, 80, 80, 0.15);
    border: 1px solid rgba(255, 80, 80, 0.3);
    border-radius: var(--radius-sm);
    color: #ff6b6b;
    margin: 20px 0;
}

.error-msg.hidden {
    display: none;
}

/* ========== 主内容 ========== */
.main-content.hidden {
    display: none;
}

/* ========== 当前天气 ========== */
.current-weather {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: var(--radius);
    padding: 40px;
    margin: 20px 0;
    backdrop-filter: blur(20px);
    box-shadow: var(--shadow);
    animation: fadeInUp 0.6s ease;
}

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

.current-left {
    flex: 1;
}

.city-name {
    font-size: 1.8rem;
    font-weight: 700;
    margin-bottom: 4px;
}

.current-date {
    color: var(--text-secondary);
    font-size: 0.95rem;
    margin-bottom: 16px;
}

.temp-display {
    display: flex;
    align-items: flex-start;
    margin-bottom: 8px;
}

.current-temp {
    font-size: 5rem;
    font-weight: 300;
    line-height: 1;
    background: linear-gradient(135deg, #fff, #e0e0ff);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.temp-unit {
    font-size: 1.5rem;
    margin-top: 10px;
    color: var(--text-secondary);
}

.weather-desc {
    font-size: 1.2rem;
    color: var(--text-secondary);
    text-transform: capitalize;
}

.current-right {
    display: flex;
    align-items: center;
    justify-content: center;
    min-width: 150px;
}

.weather-icon {
    font-size: 6rem;
    animation: icon-float 3s ease-in-out infinite;
}

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

/* ========== 天气详情 ========== */
.weather-details {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
    margin: 20px 0;
}

.detail-card {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: var(--radius-sm);
    padding: 20px;
    text-align: center;
    backdrop-filter: blur(10px);
    transition: var(--transition);
    animation: fadeInUp 0.6s ease;
}

.detail-card:hover {
    background: var(--card-hover);
    transform: translateY(-3px);
}

.detail-icon {
    font-size: 1.5rem;
    display: block;
    margin-bottom: 8px;
}

.detail-label {
    display: block;
    color: var(--text-secondary);
    font-size: 0.85rem;
    margin-bottom: 6px;
}

.detail-value {
    display: block;
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--accent-cyan);
}

/* ========== 5天预报 ========== */
.section-title {
    font-size: 1.3rem;
    font-weight: 600;
    margin: 30px 0 16px;
    color: var(--text-primary);
}

.forecast-wrapper {
    display: flex;
    gap: 12px;
    overflow-x: auto;
    padding-bottom: 10px;
    scrollbar-width: thin;
    scrollbar-color: var(--card-border) transparent;
}

.forecast-wrapper::-webkit-scrollbar {
    height: 6px;
}

.forecast-wrapper::-webkit-scrollbar-thumb {
    background: var(--card-border);
    border-radius: 3px;
}

.yesterday-container {
    flex-shrink: 0;
}

.yesterday-container.hidden {
    display: none;
}

.yesterday-card {
    opacity: 0.6;
    border: 1px dashed var(--card-border);
}

.forecast-container {
    display: contents;
}

.forecast-card {
    min-width: 140px;
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: var(--radius-sm);
    padding: 20px 16px;
    text-align: center;
    backdrop-filter: blur(10px);
    transition: var(--transition);
    animation: fadeInUp 0.6s ease;
    flex-shrink: 0;
}

.forecast-card:hover {
    background: var(--card-hover);
    transform: translateY(-3px);
}

.forecast-date {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-bottom: 10px;
    font-weight: 500;
}

.forecast-icon {
    font-size: 2.5rem;
    margin: 10px 0;
    display: block;
}

.forecast-temps {
    display: flex;
    justify-content: center;
    gap: 12px;
    margin-top: 10px;
}

.forecast-temp-high {
    font-weight: 700;
    font-size: 1.1rem;
}

.forecast-temp-low {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

.forecast-desc {
    font-size: 0.8rem;
    color: var(--text-secondary);
    margin-top: 8px;
    text-transform: capitalize;
}

/* ========== 每小时预报 ========== */
.hourly-container {
    display: flex;
    gap: 10px;
    overflow-x: auto;
    padding-bottom: 10px;
    scrollbar-width: thin;
    scrollbar-color: var(--card-border) transparent;
}

.hourly-container::-webkit-scrollbar {
    height: 6px;
}

.hourly-container::-webkit-scrollbar-thumb {
    background: var(--card-border);
    border-radius: 3px;
}

.hourly-card {
    min-width: 80px;
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: var(--radius-sm);
    padding: 14px 10px;
    text-align: center;
    backdrop-filter: blur(10px);
    transition: var(--transition);
    animation: fadeInUp 0.6s ease;
    flex-shrink: 0;
}

.hourly-card:hover {
    background: var(--card-hover);
    transform: translateY(-3px);
}

.hourly-time {
    font-size: 0.8rem;
    color: var(--text-secondary);
    margin-bottom: 8px;
}

.hourly-icon {
    font-size: 1.5rem;
    margin: 6px 0;
    display: block;
}

.hourly-temp {
    font-weight: 600;
    font-size: 1rem;
    margin-top: 6px;
}

/* ========== API 配置弹窗（多源） ========== */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.7);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    backdrop-filter: blur(5px);
}

.modal.hidden {
    display: none;
}

.modal-content {
    background: linear-gradient(135deg, #1a1a3e, #2d2b55);
    border: 1px solid var(--card-border);
    border-radius: var(--radius);
    padding: 40px;
    max-width: 480px;
    width: 90%;
    text-align: center;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
    animation: modalFadeIn 0.3s ease;
}

.modal-wide {
    max-width: 640px;
    text-align: left;
}

@keyframes modalFadeIn {
    from { opacity: 0; transform: scale(0.95) translateY(10px); }
    to { opacity: 1; transform: scale(1) translateY(0); }
}

.modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 8px;
}

.modal-header h2 {
    font-size: 1.4rem;
}

.modal-close-btn {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    color: var(--text-secondary);
    width: 36px;
    height: 36px;
    border-radius: 50%;
    font-size: 1rem;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
}

.modal-close-btn:hover {
    background: rgba(255, 80, 80, 0.2);
    color: #ff6b6b;
    border-color: rgba(255, 80, 80, 0.3);
}

.modal-desc {
    color: var(--text-secondary);
    margin-bottom: 20px;
    font-size: 0.9rem;
    line-height: 1.5;
}

/* Provider Tabs */
.provider-tabs {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 8px;
    margin-bottom: 20px;
}

.provider-tab {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
    padding: 14px 8px;
    background: var(--card-bg);
    border: 2px solid var(--card-border);
    border-radius: var(--radius-sm);
    color: var(--text-secondary);
    cursor: pointer;
    transition: var(--transition);
    position: relative;
}

.provider-tab:hover {
    background: var(--card-hover);
    color: var(--text-primary);
}

.provider-tab.active {
    border-color: var(--accent-blue);
    background: rgba(79, 172, 254, 0.1);
    color: var(--text-primary);
}

.tab-icon {
    font-size: 1.4rem;
}

.tab-name {
    font-size: 0.78rem;
    font-weight: 600;
    text-align: center;
    line-height: 1.2;
}

.tab-tag {
    font-size: 0.65rem;
    padding: 2px 8px;
    background: rgba(255, 255, 255, 0.08);
    border-radius: 10px;
    color: var(--text-secondary);
}

.provider-tab.active .tab-tag {
    background: rgba(79, 172, 254, 0.2);
    color: var(--accent-blue);
}

/* Provider Panels */
.provider-panels {
    position: relative;
    min-height: 180px;
}

.provider-panel {
    display: none;
    animation: panelFadeIn 0.3s ease;
}

.provider-panel.active {
    display: block;
}

@keyframes panelFadeIn {
    from { opacity: 0; transform: translateY(8px); }
    to { opacity: 1; transform: translateY(0); }
}

.panel-info {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: var(--radius-sm);
    padding: 20px;
    margin-bottom: 16px;
}

.panel-info h3 {
    font-size: 1.1rem;
    margin-bottom: 8px;
    color: var(--accent-cyan);
}

.panel-info p {
    color: var(--text-secondary);
    font-size: 0.88rem;
    line-height: 1.6;
    margin-bottom: 10px;
}

.panel-info a {
    color: var(--accent-blue);
    text-decoration: none;
    font-size: 0.88rem;
    font-weight: 500;
}

.panel-info a:hover {
    text-decoration: underline;
}

.panel-form label {
    display: block;
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-bottom: 8px;
    font-weight: 500;
}

.panel-form input {
    width: 100%;
    padding: 14px 18px;
    border: 2px solid var(--card-border);
    border-radius: var(--radius-sm);
    background: var(--card-bg);
    color: var(--text-primary);
    font-size: 1rem;
    outline: none;
    transition: var(--transition);
}

.panel-form input:focus {
    border-color: var(--accent-blue);
    box-shadow: 0 0 15px rgba(79, 172, 254, 0.15);
}

.input-hint {
    font-size: 0.78rem !important;
    color: var(--text-secondary) !important;
    opacity: 0.6;
    margin-top: 8px !important;
    margin-bottom: 0 !important;
}

.provider-ready {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 20px;
    background: rgba(67, 233, 123, 0.08);
    border: 1px solid rgba(67, 233, 123, 0.2);
    border-radius: var(--radius-sm);
    color: var(--accent-green);
    font-size: 0.95rem;
}

.provider-ready-icon {
    font-size: 1.3rem;
}

.modal-footer {
    margin-top: 20px;
    text-align: center;
}

.btn-primary {
    padding: 14px 40px;
    border: none;
    border-radius: var(--radius-sm);
    background: linear-gradient(135deg, var(--accent-blue), var(--accent-cyan));
    color: #fff;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(79, 172, 254, 0.4);
}

.modal-note {
    text-align: center;
    font-size: 0.8rem !important;
    margin-top: 16px !important;
    opacity: 0.6;
    color: var(--text-secondary) !important;
}

/* ========== 响应式 ========== */
@media (max-width: 768px) {
    .current-weather {
        flex-direction: column;
        text-align: center;
        padding: 30px 20px;
    }

    .current-temp {
        font-size: 4rem;
    }

    .weather-icon {
        font-size: 4rem;
    }

    .weather-details {
        grid-template-columns: repeat(2, 1fr);
    }

    .title {
        font-size: 1.8rem;
    }

    .search-box {
        flex-direction: column;
    }

    .search-box button {
        padding: 12px;
    }

    .modal-content {
        padding: 24px;
    }

    .modal-wide {
        max-width: 95%;
    }

    .provider-tabs {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 480px) {
    .container {
        padding: 10px;
    }

    .weather-details {
        grid-template-columns: 1fr 1fr;
        gap: 8px;
    }

    .detail-card {
        padding: 14px;
    }

    .forecast-card {
        min-width: 120px;
        padding: 14px 10px;
    }

    .provider-tabs {
        gap: 6px;
    }

    .provider-tab {
        padding: 10px 6px;
    }
}

/* ========== 工具类 ========== */
.hidden {
    display: none !important;
}

/* 淡入动画延迟 */
.forecast-card:nth-child(1) { animation-delay: 0.1s; }
.forecast-card:nth-child(2) { animation-delay: 0.15s; }
.forecast-card:nth-child(3) { animation-delay: 0.2s; }
.forecast-card:nth-child(4) { animation-delay: 0.25s; }
.forecast-card:nth-child(5) { animation-delay: 0.3s; }

.detail-card:nth-child(1) { animation-delay: 0.1s; }
.detail-card:nth-child(2) { animation-delay: 0.15s; }
.detail-card:nth-child(3) { animation-delay: 0.2s; }
.detail-card:nth-child(4) { animation-delay: 0.25s; }
.detail-card:nth-child(5) { animation-delay: 0.3s; }
.detail-card:nth-child(6) { animation-delay: 0.35s; }