/**
 * PanSD Modern Design Tokens & Foundation
 * Shared across Frontend Search, Admin Console & Partner Center
 * Consistent with partner.css design language
 */

:root {
  /* Brand & Theme Colors */
  --primary: #4f46e5;
  --primary-hover: #4338ca;
  --primary-active: #3730a3;
  --primary-subtle: #eef2ff;
  --primary-border: #c7d2fe;
  --primary-glow: rgba(79, 70, 229, 0.15);

  --gradient-brand: linear-gradient(135deg, #4f46e5 0%, #7c3aed 100%);
  --gradient-brand-subtle: linear-gradient(135deg, rgba(79, 70, 229, 0.08) 0%, rgba(124, 58, 237, 0.05) 100%);
  --gradient-card: linear-gradient(180deg, rgba(255, 255, 255, 0.95) 0%, rgba(255, 255, 255, 1) 100%);
  --gradient-hero-dark: linear-gradient(135deg, #0f172a 0%, #1e1b4b 50%, #31104b 100%);

  /* Neutrals & Surfaces */
  --bg-canvas: #f8fafc;
  --surface: #ffffff;
  --surface-subtle: #f8fafc;
  --surface-hover: #f1f5f9;
  --surface-active: #e2e8f0;

  --border: #e2e8f0;
  --border-subtle: #edf2f7;
  --border-hover: #cbd5e1;
  --border-focus: #818cf8;

  --text-main: #0f172a;
  --text-body: #334155;
  --text-muted: #64748b;
  --text-subtle: #94a3b8;
  --text-on-dark: #f8fafc;

  /* State Colors */
  --success: #10b981;
  --success-hover: #059669;
  --success-subtle: #ecfdf5;
  --success-border: #a7f3d0;

  --warning: #f59e0b;
  --warning-subtle: #fffbeb;
  --warning-border: #fde68a;

  --danger: #ef4444;
  --danger-hover: #dc2626;
  --danger-subtle: #fef2f2;
  --danger-border: #fecaca;

  --info: #0284c7;
  --info-subtle: #f0f9ff;
  --info-border: #bae6fd;

  /* Cloud Storage Provider Brands */
  --cloud-baidu: #2932e1;
  --cloud-baidu-bg: #eef1fe;
  --cloud-quark: #00b9a5;
  --cloud-quark-bg: #e6faf7;
  --cloud-aliyun: #ff6a00;
  --cloud-aliyun-bg: #fff2e8;
  --cloud-115: #27b068;
  --cloud-115-bg: #edf8f1;
  --cloud-xunlei: #0c77ff;
  --cloud-xunlei-bg: #edf5ff;
  --cloud-uc: #f76b1c;
  --cloud-uc-bg: #fff3ec;
  --cloud-pikpak: #3b82f6;
  --cloud-pikpak-bg: #eff6ff;

  /* Elevation Shadows */
  --shadow-xs: 0 1px 2px 0 rgba(15, 23, 42, 0.05);
  --shadow-sm: 0 1px 3px 0 rgba(15, 23, 42, 0.08), 0 1px 2px -1px rgba(15, 23, 42, 0.08);
  --shadow-md: 0 4px 6px -1px rgba(15, 23, 42, 0.07), 0 2px 4px -2px rgba(15, 23, 42, 0.05);
  --shadow-lg: 0 10px 25px -5px rgba(15, 23, 42, 0.06), 0 8px 10px -6px rgba(15, 23, 42, 0.04);
  --shadow-xl: 0 20px 30px -10px rgba(79, 70, 229, 0.12), 0 10px 15px -5px rgba(15, 23, 42, 0.05);
  --shadow-inner: inset 0 2px 4px 0 rgba(15, 23, 42, 0.04);

  /* Border Radii */
  --radius-xs: 4px;
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-full: 9999px;

  /* Transitions */
  --ease-spring: cubic-bezier(0.16, 1, 0.3, 1);
  --duration-fast: 150ms;
  --duration-normal: 220ms;
}

/* Typography Foundation */
.modern-typography,
body.modern-ui {
  font-family: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  color: var(--text-main);
  background-color: var(--bg-canvas);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Modern Gradient Canvas */
.modern-canvas-bg {
  background-color: #f8fafc;
  background-image:
    radial-gradient(at 0% 0%, rgba(79, 70, 229, 0.06) 0px, transparent 50%),
    radial-gradient(at 100% 0%, rgba(124, 58, 237, 0.05) 0px, transparent 50%),
    radial-gradient(at 50% 100%, rgba(224, 231, 255, 0.22) 0px, transparent 50%);
  background-attachment: fixed;
}

/* --- Shared Modern Components --- */

/* 1. Header / Navbar */
.modern-navbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 10px 20px;
  background: rgba(255, 255, 255, 0.88);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid rgba(226, 232, 240, 0.8);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  transition: all var(--duration-normal) var(--ease-spring);
}

.modern-brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-weight: 700;
  color: var(--text-main);
  text-decoration: none;
}

.modern-brand-logo {
  display: grid;
  place-items: center;
  width: 38px;
  height: 38px;
  border-radius: var(--radius-md);
  background: var(--gradient-brand);
  color: #fff;
  font-size: 17px;
  box-shadow: 0 4px 12px rgba(79, 70, 229, 0.3);
  flex-shrink: 0;
}

.modern-brand-text {
  display: flex;
  flex-direction: column;
}

.modern-brand-name {
  font-size: 16px;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--text-main);
  line-height: 1.2;
}

.modern-brand-tag {
  font-size: 11px;
  font-weight: 500;
  color: var(--text-muted);
  line-height: 1.3;
}

/* 2. Status Dot & Badges */
.status-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  border-radius: var(--radius-full);
  font-size: 12px;
  font-weight: 600;
  background: var(--success-subtle);
  color: var(--success);
  border: 1px solid var(--success-border);
}

.status-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: currentColor;
  position: relative;
  flex-shrink: 0;
}

.status-dot.pulse::after {
  content: "";
  position: absolute;
  inset: -3px;
  border-radius: 50%;
  background: currentColor;
  opacity: 0.4;
  animation: modernPulse 2s infinite;
}

@keyframes modernPulse {
  0% { transform: scale(0.9); opacity: 0.6; }
  50% { transform: scale(1.6); opacity: 0; }
  100% { transform: scale(0.9); opacity: 0; }
}

.badge-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 12px;
  border-radius: var(--radius-full);
  background: var(--primary-subtle);
  color: var(--primary);
  font-size: 12px;
  font-weight: 700;
  border: 1px solid var(--primary-border);
}

/* 3. Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 7px;
  height: 40px;
  padding: 0 16px;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.18s ease;
  white-space: nowrap;
  font-family: inherit;
  text-decoration: none;
}

.btn:active { transform: scale(0.98); }
.btn:disabled { opacity: 0.6; cursor: not-allowed; }

.btn-primary {
  background: var(--gradient-brand);
  color: #fff;
  box-shadow: 0 2px 6px rgba(79, 70, 229, 0.25);
}
.btn-primary:hover {
  box-shadow: 0 6px 16px rgba(79, 70, 229, 0.35);
  transform: translateY(-1px);
  color: #fff;
}

.btn-secondary {
  background: #fff;
  color: var(--text-main);
  border-color: var(--border);
}
.btn-secondary:hover {
  background: var(--surface-subtle);
  border-color: #cbd5e1;
  color: var(--text-main);
}

.btn-ghost {
  background: transparent;
  color: var(--text-muted);
}
.btn-ghost:hover {
  background: var(--surface-hover);
  color: var(--text-main);
}

.btn-sm {
  height: 32px;
  padding: 0 12px;
  font-size: 12px;
  border-radius: 6px;
}

.btn-lg {
  height: 48px;
  padding: 0 24px;
  font-size: 15px;
  border-radius: var(--radius-md);
}

.btn-icon {
  width: 38px;
  height: 38px;
  padding: 0;
  border-radius: var(--radius-sm);
}

/* 4. Form Controls */
.input-field,
.select-field {
  width: 100%;
  height: 42px;
  padding: 0 14px;
  font-size: 14px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: #fff;
  color: var(--text-main);
  outline: none;
  transition: all 0.15s ease;
  font-family: inherit;
  box-sizing: border-box;
}

.input-field:focus,
.select-field:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px var(--primary-glow);
}

.input-field::placeholder {
  color: var(--text-subtle);
}

/* 5. Modals */
.modal-backdrop {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  width: 100vw;
  height: 100vh;
  z-index: 99999;
  background: rgba(15, 23, 42, 0.6);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 16px;
  box-sizing: border-box;
}

.modal-backdrop.hidden,
.modal-backdrop[hidden],
.modal-backdrop.is-hidden {
  display: none !important;
}

.modal-dialog {
  background: #ffffff !important;
  border-radius: 16px !important;
  width: 100% !important;
  max-width: 600px !important;
  box-shadow: 0 25px 50px -12px rgba(15, 23, 42, 0.28) !important;
  max-height: 90vh !important;
  display: flex !important;
  flex-direction: column !important;
  overflow: hidden !important;
  border: 1px solid rgba(226, 232, 240, 0.8) !important;
  animation: modernModalIn 0.25s cubic-bezier(0.16, 1, 0.3, 1) forwards !important;
}

@keyframes modernModalIn {
  from { opacity: 0; transform: scale(0.96) translateY(8px); }
  to { opacity: 1; transform: scale(1) translateY(0); }
}

.modal-header {
  padding: 18px 24px !important;
  border-bottom: 1px solid var(--border) !important;
  display: flex !important;
  align-items: center !important;
  justify-content: space-between !important;
}

.modal-title-group {
  display: flex !important;
  align-items: center !important;
  gap: 12px !important;
}

.modal-icon {
  width: 36px !important;
  height: 36px !important;
  border-radius: var(--radius-sm) !important;
  background: var(--primary-subtle) !important;
  color: var(--primary) !important;
  display: flex !important;
  align-items: center !important;
  justify-content: center !important;
  font-size: 16px !important;
  flex-shrink: 0 !important;
}

.modal-title {
  font-size: 16px !important;
  font-weight: 700 !important;
  margin: 0 !important;
  color: var(--text-main) !important;
}

.modal-subtitle {
  font-size: 12px !important;
  color: var(--text-muted) !important;
  margin-top: 2px !important;
}

.modal-close {
  border: none !important;
  background: transparent !important;
  color: var(--text-subtle) !important;
  font-size: 18px !important;
  cursor: pointer !important;
  padding: 6px 8px !important;
  border-radius: 6px !important;
  transition: all 0.15s ease !important;
}

.modal-close:hover {
  background: var(--surface-hover) !important;
  color: var(--text-main) !important;
}

/* 6. Card Base */
.modern-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  transition: all var(--duration-normal) var(--ease-spring);
}

.modern-card:hover {
  box-shadow: var(--shadow-md);
  border-color: #cbd5e1;
}

/* 7. Modern Segmented Tabs */
.segmented-control {
  display: inline-flex;
  align-items: center;
  gap: 2px;
  padding: 3px;
  background: var(--surface-hover);
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
}

.segmented-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 12px;
  font-size: 12px;
  font-weight: 600;
  border-radius: 6px;
  border: none;
  background: transparent;
  color: var(--text-muted);
  cursor: pointer;
  transition: all 0.15s ease;
  white-space: nowrap;
}

.segmented-btn.active {
  background: #fff;
  color: var(--primary);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.08);
}