/* ============================================
   Ansee.pro Design System — 安见心理咨询
   「暖纸」主题：护眼低亮度 + 暖色调
   适配干眼症/飞蚊症：无纯白、无纯黑
   ============================================ */

/* --- Design Tokens --- */
:root {
  /* 暖纸底色 — 降低亮度至90-93%，米黄色调减少蓝光 */
  --bg: #F0EBE3;
  --bg-alt: #E8E1D8;
  --surface: #F5F0E8;
  --surface-hover: #EDE7DE;
  --border: #DDD5CB;
  --border-light: #E5DED5;

  /* Primary: 温暖鼠尾草绿 — 微暖化 */
  --primary: #7A9E8E;
  --primary-light: #9EBCAF;
  --primary-dark: #5C8070;
  --primary-bg: rgba(122, 158, 142, 0.10);
  --primary-bg-hover: rgba(122, 158, 142, 0.16);

  /* Accent: 暖琥珀 */
  --accent: #C19366;
  --accent-light: #D4AD85;
  --accent-bg: rgba(193, 147, 102, 0.12);

  /* Status — 保持辨识度，略微柔化 */
  --success: #5A9E76;
  --success-bg: rgba(90, 158, 118, 0.12);
  --warning: #C89A4E;
  --warning-bg: rgba(200, 154, 78, 0.12);
  --danger: #B96464;
  --danger-bg: rgba(185, 100, 100, 0.12);

  /* 文字 — 深棕灰替代纯黑，降低对比刺激 */
  --text: #3C3632;
  --text-secondary: #7A7168;
  --text-muted: #A69E94;
  --text-on-primary: #FAF8F5;

  /* Typography */
  --font-heading: 'Noto Serif SC', 'Georgia', serif;
  --font-body: 'Inter', 'Noto Sans SC', sans-serif;

  /* Spacing */
  --space-xs: 4px;
  --space-sm: 8px;
  --space-md: 16px;
  --space-lg: 24px;
  --space-xl: 32px;
  --space-2xl: 48px;
  --space-3xl: 64px;

  /* Radius */
  --radius: 12px;
  --radius-sm: 8px;
  --radius-xs: 4px;
  --radius-full: 100px;

  /* Shadows (soft, warm) */
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.04), 0 1px 2px rgba(0,0,0,0.06);
  --shadow: 0 4px 12px rgba(0,0,0,0.06);
  --shadow-lg: 0 8px 24px rgba(0,0,0,0.08);
  --shadow-focus: 0 0 0 3px rgba(91, 140, 141, 0.2);

  /* Transitions */
  --ease: cubic-bezier(0.25, 0.46, 0.45, 0.94);
  --transition: all 0.3s var(--ease);
}

/* --- Reset & Base --- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
  font-family: var(--font-body);
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}

/* --- Typography --- */
h1, h2, h3 { font-family: var(--font-heading); font-weight: 600; line-height: 1.35; }
h1 { font-size: clamp(1.8rem, 4vw, 2.4rem); }
h2 { font-size: clamp(1.4rem, 3vw, 1.8rem); }
h3 { font-size: 1.15rem; }
p { color: var(--text-secondary); }
a { color: var(--primary); text-decoration: none; transition: var(--transition); }
a:hover { color: var(--primary-dark); }

/* --- Layout --- */
.container { max-width: 960px; margin: 0 auto; padding: 0 var(--space-lg); }
.container-sm { max-width: 520px; margin: 0 auto; padding: 0 var(--space-lg); }

/* --- Header / Nav --- */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(240, 235, 227, 0.88);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border-light);
  padding: var(--space-md) 0;
}
.site-header .container {
  display: flex; justify-content: space-between; align-items: center;
  max-width: 960px;
}
.logo { display: flex; align-items: center; gap: var(--space-sm); text-decoration: none; }
.logo-icon { width: 32px; height: 32px; border-radius: var(--radius-sm); overflow: hidden; }
.logo-icon img { width: 100%; height: 100%; object-fit: cover; }
.logo-text { font-family: var(--font-heading); font-size: 1.1rem; font-weight: 600; color: var(--text); }
.logo-text span { font-family: var(--font-body); color: var(--text-muted); font-size: 0.85rem; margin-left: 4px; font-weight: 400; }

.nav-actions { display: flex; gap: var(--space-sm); align-items: center; }
.nav-user { font-size: 0.85rem; color: var(--text-secondary); margin-right: var(--space-sm); }

/* --- Buttons --- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: var(--space-sm);
  padding: 10px 20px; border-radius: var(--radius-sm); font-size: 0.9rem;
  font-weight: 500; font-family: var(--font-body); cursor: pointer;
  border: 1px solid transparent; transition: var(--transition);
  text-decoration: none; line-height: 1.4;
}
.btn:active { transform: scale(0.98); }

.btn-primary {
  background: var(--primary); color: var(--text-on-primary);
  box-shadow: var(--shadow-sm);
}
.btn-primary:hover { background: var(--primary-dark); color: var(--text-on-primary); transform: translateY(-1px); box-shadow: var(--shadow); }

.btn-accent {
  background: var(--accent); color: var(--text-on-primary);
  box-shadow: var(--shadow-sm);
}
.btn-accent:hover { background: #c08558; color: var(--text-on-primary); transform: translateY(-1px); }

.btn-outline {
  background: var(--surface); border-color: var(--border); color: var(--text);
}
.btn-outline:hover { border-color: var(--primary); background: var(--primary-bg); color: var(--primary-dark); }

.btn-ghost { background: transparent; color: var(--text-secondary); }
.btn-ghost:hover { background: var(--bg-alt); color: var(--text); }

.btn-danger { background: var(--danger); color: white; }
.btn-danger:hover { background: #b35959; color: white; }

.btn-sm { padding: 6px 14px; font-size: 0.82rem; }
.btn-lg { padding: 14px 28px; font-size: 1rem; }
.btn-block { width: 100%; }
.btn:disabled { opacity: 0.5; cursor: not-allowed; transform: none !important; }

/* --- Cards --- */
.card {
  background: var(--surface); border: 1px solid var(--border-light);
  border-radius: var(--radius); padding: var(--space-xl);
  box-shadow: var(--shadow-sm); transition: var(--transition);
}
.card:hover { box-shadow: var(--shadow); }
.card-highlight {
  border-color: var(--primary);
  box-shadow: 0 0 0 1px var(--primary), var(--shadow-sm);
}

/* --- Forms --- */
.form-group { margin-bottom: var(--space-lg); }
.form-label {
  display: block; font-size: 0.85rem; font-weight: 500;
  color: var(--text); margin-bottom: var(--space-xs);
}
.form-hint { font-size: 0.78rem; color: var(--text-muted); margin-top: 2px; }
.form-input, .form-select {
  width: 100%; padding: 10px 14px; border: 1px solid var(--border);
  border-radius: var(--radius-sm); font-size: 0.92rem; font-family: var(--font-body);
  color: var(--text); background: var(--surface);
  transition: var(--transition); outline: none;
}
.form-input:focus, .form-select:focus {
  border-color: var(--primary); box-shadow: var(--shadow-focus);
}
.form-input::placeholder { color: var(--text-muted); }
.form-input.error { border-color: var(--danger); }
.form-error { font-size: 0.78rem; color: var(--danger); margin-top: 2px; display: none; }
.form-error.show { display: block; }

.form-row { display: flex; gap: var(--space-md); }
.form-row > .form-group { flex: 1; }

/* Radio group */
.radio-group { display: flex; gap: var(--space-md); margin-top: var(--space-xs); }
.radio-card {
  flex: 1; padding: var(--space-md); border: 2px solid var(--border);
  border-radius: var(--radius-sm); cursor: pointer; transition: var(--transition);
  text-align: center; position: relative;
}
.radio-card:hover { border-color: var(--primary-light); background: var(--primary-bg); }
.radio-card.selected { border-color: var(--primary); background: var(--primary-bg); }
.radio-card input[type="radio"] { display: none; }
.radio-card .radio-icon { font-size: 1.5rem; margin-bottom: var(--space-xs); }
.radio-card .radio-label { font-weight: 600; font-size: 0.9rem; color: var(--text); display: block; }
.radio-card .radio-desc { font-size: 0.78rem; color: var(--text-secondary); margin-top: 2px; }

/* --- Badges --- */
.badge {
  display: inline-flex; align-items: center; gap: 4px;
  padding: 3px 10px; border-radius: var(--radius-full); font-size: 0.72rem;
  font-weight: 600; letter-spacing: 0.3px;
}
.badge-pending { background: var(--warning-bg); color: var(--warning); }
.badge-approved { background: var(--success-bg); color: var(--success); }
.badge-paid { background: var(--accent-bg); color: var(--accent); }
.badge-free { background: var(--primary-bg); color: var(--primary); }
.badge-cancelled { background: var(--danger-bg); color: var(--danger); }

/* --- Page Layouts --- */
.page-hero {
  padding: var(--space-3xl) 0 var(--space-2xl);
  text-align: center;
}
.page-hero h1 { margin-bottom: var(--space-md); }
.page-hero p { max-width: 480px; margin: 0 auto; font-size: 1.05rem; }

.page-content { padding: 0 0 var(--space-3xl); }

.section-title {
  font-family: var(--font-heading); font-size: 1.3rem;
  font-weight: 600; margin-bottom: var(--space-lg);
  padding-bottom: var(--space-sm);
  border-bottom: 1px solid var(--border-light);
}

/* --- Calendar --- */
.calendar-nav {
  display: flex; justify-content: space-between; align-items: center;
  margin-bottom: var(--space-lg);
}
.calendar-nav h3 { font-family: var(--font-body); font-weight: 600; }

.calendar-grid {
  display: grid; gap: var(--space-md);
}

.day-card {
  background: var(--surface); border: 1px solid var(--border-light);
  border-radius: var(--radius); overflow: hidden;
  transition: var(--transition);
}

.day-header {
  padding: var(--space-md) var(--space-lg);
  background: var(--bg-alt); border-bottom: 1px solid var(--border-light);
  display: flex; justify-content: space-between; align-items: center;
}
.day-date { font-weight: 600; font-size: 0.95rem; }
.day-weekday { font-size: 0.82rem; color: var(--text-muted); }
.day-today { color: var(--primary); }

.day-slots { padding: var(--space-md) var(--space-lg); }

.slot-item {
  display: flex; justify-content: space-between; align-items: center;
  padding: var(--space-sm) var(--space-md);
  margin-bottom: var(--space-sm);
  border-radius: var(--radius-sm);
  transition: var(--transition);
  border: 1px solid transparent;
}
.slot-item:last-child { margin-bottom: 0; }

.slot-info { display: flex; align-items: center; gap: var(--space-md); }
.slot-time { font-size: 0.88rem; font-weight: 500; color: var(--text); font-family: var(--font-body); }
.slot-duration { font-size: 0.78rem; color: var(--text-muted); }

/* Slot states */
.slot-available {
  background: var(--success-bg); border-color: rgba(91, 166, 126, 0.15);
  cursor: pointer;
}
.slot-available:hover { border-color: var(--success); transform: translateX(2px); }
.slot-available .slot-status { color: var(--success); font-weight: 600; font-size: 0.82rem; }

.slot-booked {
  background: var(--bg-alt); opacity: 0.6; cursor: not-allowed;
}
.slot-booked .slot-status { color: var(--text-muted); font-size: 0.82rem; }

.slot-blocked {
  background: var(--danger-bg); opacity: 0.5; cursor: not-allowed;
}
.slot-blocked .slot-status { color: var(--danger); font-size: 0.82rem; }

.slot-mine {
  background: var(--primary-bg); border-color: var(--primary);
}
.slot-mine .slot-status { color: var(--primary); font-weight: 600; font-size: 0.82rem; }

/* --- My Bookings --- */
.booking-item {
  display: flex; justify-content: space-between; align-items: center;
  padding: var(--space-lg); background: var(--surface);
  border: 1px solid var(--border-light); border-radius: var(--radius);
  margin-bottom: var(--space-md); transition: var(--transition);
}
.booking-item:hover { box-shadow: var(--shadow); }
.booking-date { font-weight: 600; font-size: 1rem; }
.booking-time { font-size: 0.88rem; color: var(--text-secondary); margin-top: 2px; }
.booking-actions { display: flex; gap: var(--space-sm); align-items: center; }

/* --- Modal --- */
.modal-overlay {
  position: fixed; top: 0; left: 0; width: 100%; height: 100%;
  background: rgba(0,0,0,0.4); backdrop-filter: blur(4px);
  z-index: 100; display: none; align-items: center; justify-content: center;
  animation: fadeIn 0.2s var(--ease);
}
.modal-overlay.show { display: flex; }
@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }

.modal {
  background: var(--surface); border-radius: var(--radius);
  padding: var(--space-xl); width: 90%; max-width: 440px;
  box-shadow: var(--shadow-lg); position: relative;
  animation: slideUp 0.3s var(--ease);
}
@keyframes slideUp { from { opacity: 0; transform: translateY(20px); } to { opacity: 1; transform: translateY(0); } }

.modal-close {
  position: absolute; top: var(--space-md); right: var(--space-md);
  background: none; border: none; font-size: 1.2rem; color: var(--text-muted);
  cursor: pointer; transition: var(--transition);
}
.modal-close:hover { color: var(--text); }
.modal h3 { margin-bottom: var(--space-lg); }

/* --- Toast --- */
.toast {
  position: fixed; top: 80px; left: 50%; transform: translateX(-50%);
  z-index: 200; padding: 12px 24px; border-radius: var(--radius-sm);
  font-weight: 500; font-size: 0.9rem; box-shadow: var(--shadow-lg);
  display: none; animation: slideUp 0.3s var(--ease);
}
.toast.show { display: block; }
.toast-success { background: var(--success); color: white; }
.toast-error { background: var(--danger); color: white; }
.toast-info { background: var(--primary); color: white; }

/* --- Home Page Specific --- */
.home-hero {
  padding: var(--space-3xl) 0;
  text-align: center;
  position: relative;
}
.home-hero::before {
  content: ''; position: absolute; top: 0; left: 50%; transform: translateX(-50%);
  width: 600px; height: 600px;
  background: radial-gradient(circle, var(--primary-bg) 0%, transparent 70%);
  pointer-events: none; z-index: 0;
}
.home-hero > * { position: relative; z-index: 1; }
.home-hero h1 { margin-bottom: var(--space-md); color: var(--text); }
.home-hero .highlight {
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
}
.home-hero p { max-width: 500px; margin: 0 auto var(--space-xl); font-size: 1.05rem; line-height: 1.9; }

.home-cards {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: var(--space-lg); margin-top: var(--space-xl);
}
.home-card {
  padding: var(--space-xl); text-align: center;
  background: var(--surface); border: 1px solid var(--border-light);
  border-radius: var(--radius); transition: var(--transition);
}
.home-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-lg); }
.home-card-icon { font-size: 2.2rem; margin-bottom: var(--space-md); }
.home-card h3 { margin-bottom: var(--space-sm); }
.home-card p { font-size: 0.88rem; margin-bottom: var(--space-lg); }
.home-card .price { font-size: 1.1rem; color: var(--text); font-weight: 600; margin-bottom: var(--space-md); font-family: var(--font-body); }

.home-recover {
  text-align: center; margin-top: var(--space-2xl);
  padding: var(--space-lg); background: var(--bg-alt);
  border-radius: var(--radius);
}
.home-recover p { font-size: 0.88rem; margin-bottom: var(--space-sm); }

/* --- Status Banner --- */
.status-banner {
  padding: var(--space-md) var(--space-lg);
  border-radius: var(--radius-sm); margin-bottom: var(--space-lg);
  display: flex; align-items: center; gap: var(--space-md);
  font-size: 0.88rem;
}
.status-pending {
  background: var(--warning-bg); border: 1px solid rgba(212, 160, 84, 0.2);
  color: #8B6914;
}
.status-approved {
  background: var(--success-bg); border: 1px solid rgba(91, 166, 126, 0.2);
  color: #2D6B47;
}

/* --- Footer --- */
.site-footer {
  text-align: center; padding: var(--space-xl) 0;
  border-top: 1px solid var(--border-light); margin-top: var(--space-2xl);
  font-size: 0.82rem; color: var(--text-muted);
}
.site-footer a { color: var(--text-muted); }
.site-footer a:hover { color: var(--primary); }

/* --- Divider --- */
.divider { border: none; border-top: 1px solid var(--border-light); margin: var(--space-lg) 0; }

/* --- Loading --- */
.loading { text-align: center; padding: var(--space-2xl); color: var(--text-muted); }
.spinner {
  display: inline-block; width: 24px; height: 24px;
  border: 2px solid var(--border); border-top-color: var(--primary);
  border-radius: 50%; animation: spin 0.6s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* --- Responsive --- */
@media (max-width: 640px) {
  .container, .container-sm { padding: 0 var(--space-md); }
  .form-row { flex-direction: column; gap: 0; }
  .radio-group { flex-direction: column; }
  .home-cards { grid-template-columns: 1fr; }
  .booking-item { flex-direction: column; gap: var(--space-md); text-align: center; }
  .site-header .container { padding: 0 var(--space-md); }
  .card { padding: var(--space-lg); }
  .day-header { padding: var(--space-sm) var(--space-md); }
  .day-slots { padding: var(--space-sm) var(--space-md); }
  .slot-item { flex-direction: column; align-items: flex-start; gap: var(--space-xs); }
  .page-hero { padding: var(--space-2xl) 0 var(--space-lg); }
}

/* --- Utility --- */
.text-center { text-align: center; }
.text-muted { color: var(--text-muted); }
.text-sm { font-size: 0.82rem; }
.mt-sm { margin-top: var(--space-sm); }
.mt-md { margin-top: var(--space-md); }
.mt-lg { margin-top: var(--space-lg); }
.mt-xl { margin-top: var(--space-xl); }
.mb-md { margin-bottom: var(--space-md); }
.mb-lg { margin-bottom: var(--space-lg); }
.hidden { display: none !important; }
.flex-center { display: flex; align-items: center; justify-content: center; }