/**
 * login-app/css/app.css - 登录页样式
 */

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

:root {
    --font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Helvetica Neue", "PingFang SC", "Microsoft YaHei", sans-serif;
    --color-primary: #007AFF;
    --color-success: #34C759;
    --color-danger: #FF3B30;
    --color-warning: #FF9500;
    --glass-bg: rgba(255, 255, 255, 0.6);
    --glass-border: rgba(255, 255, 255, 0.25);
    --glass-blur: blur(12px);
    --text-primary: #1d1d1f;
    --text-secondary: #86868b;
}

html { font-size: 16px; -webkit-font-smoothing: antialiased; }

body {
    font-family: var(--font-family);
    line-height: 1.5;
    color: var(--text-primary);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    overflow-x: hidden;
}

#app {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    min-height: 100vh;
}

/* 加载状态 */
.page-loading {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 16px;
    z-index: 1000;
    transition: opacity 0.4s ease, filter 0.4s ease;
}
.page-loading.fade-out {
    opacity: 0;
    filter: blur(8px);
    pointer-events: none;
}
.page-loading-avatar {
    display: flex;
    justify-content: center;
    align-items: center;
    animation: monkeyBounce 1s ease-in-out infinite;
}
.page-loading-avatar svg {
    filter: drop-shadow(0 4px 12px rgba(0,0,0,0.15));
}
@keyframes monkeyBounce {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-8px); }
}
.page-loading-text {
    color: white;
    font-size: 14px;
    text-align: center;
}

/* 流体渐变背景 */
.fluid-background {
    position: fixed; top: 0; left: 0;
    width: 100vw; height: 100vh; z-index: -1;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 25%, #a8c0ff 50%, #f093fb 75%, #5ee7df 100%);
    background-size: 400% 400%;
    animation: gradientFlow 15s ease infinite;
}
.fluid-background::before {
    content: '';
    position: absolute; top: -50%; left: -50%;
    width: 200%; height: 200%;
    background: radial-gradient(ellipse at 20% 50%, rgba(255,255,255,0.15) 0%, transparent 50%),
                radial-gradient(ellipse at 80% 20%, rgba(120,100,255,0.12) 0%, transparent 40%),
                radial-gradient(ellipse at 50% 80%, rgba(255,150,200,0.1) 0%, transparent 45%);
    animation: blobMove 20s ease-in-out infinite;
}
@keyframes gradientFlow {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}
@keyframes blobMove {
    0%, 100% { transform: translate(0, 0) rotate(0deg); }
    33% { transform: translate(30px, -20px) rotate(5deg); }
    66% { transform: translate(-20px, 15px) rotate(-3deg); }
}
@keyframes spin { to { transform: rotate(360deg); } }

/* 毛玻璃卡片 */
.login-card {
    width: 100%; max-width: 420px;
    background: rgba(255, 255, 255, 0.45);
    backdrop-filter: blur(24px) saturate(180%);
    -webkit-backdrop-filter: blur(24px) saturate(180%);
    border: 1px solid rgba(255, 255, 255, 0.35);
    border-radius: 28px;
    box-shadow: 0 8px 32px rgba(0,0,0,0.06),
                0 2px 8px rgba(0,0,0,0.04),
                0 0 0 1px rgba(255,255,255,0.2) inset,
                0 -2px 16px rgba(255,255,255,0.1) inset;
    padding: 44px 36px;
    animation: cardFadeIn 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}
@keyframes cardFadeIn {
    from { opacity: 0; transform: translateY(24px) scale(0.96); }
    to { opacity: 1; transform: translateY(0) scale(1); }
}

/* 头像区域 */
.avatar-area {
    display: flex;
    justify-content: center;
    margin-bottom: 20px;
    height: 120px;
    position: relative;
}
.avatar-wrap {
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
    width: 120px;
    height: 120px;
    transition: opacity 0.35s ease, transform 0.35s ease;
}
.avatar-wrap.hidden {
    opacity: 0;
    transform: translate(-50%, -50%) scale(0.8);
    pointer-events: none;
}

/* 头像双层切换动画 */
.avatar-layer {
    position: absolute;
    top: 0;
    left: 0;
    width: 120px;
    height: 120px;
    transition: opacity 0.4s ease, transform 0.4s ease;
}
.avatar-layer.avatar-default {
    z-index: 1;
}
.avatar-layer.avatar-default.hidden {
    opacity: 0;
    transform: scale(0.9);
}
.avatar-layer.avatar-custom {
    z-index: 2;
    opacity: 0;
    transform: scale(1.1);
}
.avatar-layer.avatar-custom.active {
    opacity: 1;
    transform: scale(1);
}

/* 用户自定义头像的手和眼睛动画 */
.avatar-hands {
    transition: transform 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
}
.avatar-wrap.covering .avatar-hands {
    transform: translateY(-28px);
}

.avatar-eyes {
    transition: opacity 0.3s ease;
}
.avatar-wrap.covering .avatar-eyes {
    opacity: 0;
}

/* SVG 头像动画 */
.monkey-hands, .monster-paws {
    transition: transform 0.4s cubic-bezier(0.34, 1.56, 0.64, 1), opacity 0.3s ease;
}
.avatar-wrap.covering .monkey-hands,
.avatar-wrap.covering .monster-paws {
    transform: translateY(-28px);
}
.monkey-eyes, .monster-eye {
    transition: opacity 0.3s ease;
}
.avatar-wrap.covering .monkey-eyes,
.avatar-wrap.covering .monster-eye {
    opacity: 0;
}
.monkey-mouth-happy, .monster-mouth-happy { opacity: 0; transition: opacity 0.3s ease; }
.monkey-mouth-normal, .monster-mouth-normal { transition: opacity 0.3s ease; }
.avatar-wrap.covering .monkey-mouth-happy,
.avatar-wrap.covering .monster-mouth-happy { opacity: 1; }
.avatar-wrap.covering .monkey-mouth-normal,
.avatar-wrap.covering .monster-mouth-normal { opacity: 0; }

@keyframes breathe {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.02); }
}
.avatar-svg { animation: breathe 3s ease-in-out infinite; }

/* 标题 */
.login-header { text-align: center; margin-bottom: 28px; }
.login-title {
    font-size: 30px; font-weight: 700; letter-spacing: -0.5px;
    background: linear-gradient(135deg, var(--text-primary) 0%, rgba(0,0,0,0.6) 100%);
    -webkit-background-clip: text; -webkit-text-fill-color: transparent;
    background-clip: text;
}
.login-subtitle {
    font-size: 14px; color: var(--text-secondary); margin-top: 8px;
    font-weight: 400; letter-spacing: 0.3px;
}

/* Tab */
.tab-container {
    display: flex;
    background: rgba(0,0,0,0.04);
    border-radius: 14px; padding: 4px;
    margin-bottom: 28px; position: relative;
    border: 1px solid rgba(0,0,0,0.03);
}
.tab-slider {
    position: absolute; top: 4px; left: 4px;
    width: calc(50% - 4px); height: calc(100% - 8px);
    background: rgba(255,255,255,0.85); border-radius: 11px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.06), 0 0 0 0.5px rgba(0,0,0,0.04);
    transition: transform 0.35s cubic-bezier(0.4, 0, 0.2, 1);
}
.tab-slider.student { transform: translateX(100%); }
.tab-btn {
    flex: 1; padding: 12px; border: none;
    background: transparent; font-size: 14px; font-weight: 500;
    color: var(--text-secondary); cursor: pointer;
    transition: color 0.2s; position: relative; z-index: 1;
}
.tab-btn.active { color: var(--text-primary); }

/* 表单 */
.form-panel { animation: panelFadeIn 0.3s ease-out; }
@keyframes panelFadeIn { from { opacity: 0; } to { opacity: 1; } }
.form-group { margin-bottom: 20px; }
.form-label { display: block; font-size: 13px; font-weight: 500; color: var(--text-secondary); margin-bottom: 8px; letter-spacing: 0.2px; }
.form-input {
    width: 100%; padding: 14px 18px;
    border: 1.5px solid rgba(0,0,0,0.06);
    background: rgba(255,255,255,0.65);
    border-radius: 14px;
    font-size: 16px; font-family: inherit;
    color: var(--text-primary);
    transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}
.form-input:focus {
    outline: none;
    border-color: var(--color-primary);
    background: rgba(255,255,255,0.9);
    box-shadow: 0 0 0 4px rgba(0,122,255,0.1);
}
.form-input::placeholder { color: var(--text-secondary); opacity: 0.6; }

/* 按钮 */
.submit-btn {
    width: 100%; padding: 16px; border: none; border-radius: 16px;
    background: linear-gradient(135deg, #007AFF 0%, #5856D6 50%, #AF52DE 100%);
    background-size: 200% 200%;
    color: white; font-size: 16px; font-weight: 600;
    font-family: inherit; cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 0 4px 16px rgba(0,122,255,0.3), 0 1px 3px rgba(0,0,0,0.1);
    margin-top: 12px; position: relative; overflow: hidden;
}
.submit-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(0,122,255,0.35), 0 2px 6px rgba(0,0,0,0.1);
    background-position: 100% 50%;
}
.submit-btn:active { transform: translateY(0) scale(0.99); }
.submit-btn:disabled { opacity: 0.7; cursor: not-allowed; transform: none; }
.submit-btn.loading { pointer-events: none; }
.submit-btn.loading::after {
    content: ''; position: absolute;
    width: 20px; height: 20px;
    border: 2px solid transparent; border-top-color: white; border-radius: 50%;
    animation: spin 0.8s linear infinite;
    top: 50%; left: 20px; margin-top: -10px;
}

/* 消息 */
.message {
    padding: 12px 16px; border-radius: 12px;
    font-size: 14px; margin-bottom: 20px; text-align: center;
    animation: messageIn 0.3s ease-out;
}
@keyframes messageIn { from { opacity: 0; transform: translateY(-8px); } to { opacity: 1; transform: translateY(0); } }
.message-error { background: rgba(255,59,48,0.12); color: #c92d24; border: 1px solid rgba(255,59,48,0.2); }
.message-success { background: rgba(52,199,89,0.12); color: #1d7a35; border: 1px solid rgba(52,199,89,0.2); }

/* 通道关闭 */
.channel-closed { background: rgba(255,149,0,0.1); border: 1px solid rgba(255,149,0,0.25); border-radius: 12px; padding: 24px 16px; text-align: center; color: #996300; font-size: 14px; }
.channel-closed-icon { font-size: 40px; margin-bottom: 12px; }

/* 底部 */
.login-footer { text-align: center; margin-top: 24px; padding-top: 20px; border-top: 1px solid rgba(0,0,0,0.05); }
.login-hint { font-size: 12px; color: var(--text-secondary); line-height: 1.6; }

/* 状态 */
.status-badge { display: inline-flex; align-items: center; gap: 6px; padding: 6px 12px; border-radius: 20px; font-size: 12px; font-weight: 500; margin-top: 16px; }
.status-badge.open { background: rgba(52,199,89,0.15); color: var(--color-success); }
.status-badge.closed { background: rgba(255,149,0,0.15); color: var(--color-warning); }
.status-dot { width: 6px; height: 6px; border-radius: 50%; background: currentColor; }

/* 响应式 */
@media (max-width: 480px) {
    body { padding: 16px; }
    .login-card { padding: 36px 24px; border-radius: 24px; }
    .login-title { font-size: 26px; }
    .form-input { padding: 12px 14px; font-size: 16px; }
    .submit-btn { padding: 14px; }
    .avatar-area { height: 100px; }
    .avatar-svg { width: 100px; height: 100px; }
}

/* 深色主题 */
[data-theme="dark"] {
    --glass-bg: rgba(28, 28, 30, 0.85);
    --glass-border: rgba(255, 255, 255, 0.1);
    --text-primary: #f5f5f7;
    --text-secondary: #a1a1a6;
    --color-primary: #0A84FF;
    --color-success: #30D158;
    --color-danger: #FF453A;
    --color-warning: #FF9F0A;
}
[data-theme="dark"] .fluid-background {
    background: linear-gradient(135deg, #1a1a2e 0%, #16213e 25%, #0f3460 50%, #1a1a2e 75%, #16213e 100%);
}
[data-theme="dark"] .login-card {
    background: rgba(28, 28, 30, 0.7);
    border-color: rgba(255,255,255,0.08);
    box-shadow: 0 8px 32px rgba(0,0,0,0.4), 0 0 0 1px rgba(255,255,255,0.04) inset;
}
[data-theme="dark"] .login-title {
    background: linear-gradient(135deg, #f5f5f7 0%, rgba(255,255,255,0.7) 100%);
    -webkit-background-clip: text; -webkit-text-fill-color: transparent;
    background-clip: text;
}
[data-theme="dark"] .tab-container { background: rgba(255,255,255,0.06); border-color: rgba(255,255,255,0.04); }
[data-theme="dark"] .tab-slider { background: rgba(255,255,255,0.12); box-shadow: 0 2px 8px rgba(0,0,0,0.2); }
[data-theme="dark"] .tab-btn.active { color: #f5f5f7; }
[data-theme="dark"] .form-input {
    background: rgba(255,255,255,0.08);
    border-color: rgba(255,255,255,0.1);
    color: var(--text-primary);
}
[data-theme="dark"] .form-input:focus {
    background: rgba(255,255,255,0.12);
    border-color: var(--color-primary);
    box-shadow: 0 0 0 4px rgba(10,132,255,0.15);
}
[data-theme="dark"] .form-input::placeholder { color: var(--text-secondary); }
[data-theme="dark"] .login-footer { border-top-color: rgba(255,255,255,0.06); }
[data-theme="dark"] .message-error { background: rgba(255,69,58,0.15); color: #FF6961; border-color: rgba(255,69,58,0.25); }
[data-theme="dark"] .message-success { background: rgba(48,209,88,0.15); color: #30D158; border-color: rgba(48,209,88,0.25); }
[data-theme="dark"] .channel-closed { background: rgba(255,159,10,0.12); border-color: rgba(255,159,10,0.25); color: #FFD60A; }
[data-theme="dark"] .status-badge.open { background: rgba(48,209,88,0.15); color: #30D158; }
[data-theme="dark"] .status-badge.closed { background: rgba(255,159,10,0.15); color: #FF9F0A; }