/**
 * Puppertino Design System & Component Library for PlusKampus
 * Apple Human Interface Guidelines Architecture
 * Modular Components: Palette, Layout, Buttons, Cards, Forms, Modals, Actions, Tabs, Segments, Shadows
 */

@charset "UTF-8";

/* ==========================================================================
   1. COLOR PALETTE & DESIGN SYSTEM TOKENS
   ========================================================================== */
:root {
  /* Apple & Puppertino Core Colors */
  --p-apple-blue: #007AFF;
  --p-apple-blue-dark: #0A84FF;
  --p-apple-green: #34C759;
  --p-apple-green-dark: #30D158;
  --p-apple-indigo: #5856D6;
  --p-apple-orange: #FF9500;
  --p-apple-pink: #FF2D55;
  --p-apple-purple: #AF52DE;
  --p-apple-red: #FF3B30;
  --p-apple-teal: #5AC8FA;
  --p-apple-yellow: #FFCC00;

  /* PlusKampus Signature Accents */
  --pk-brand-orange: #FF7A00;
  --pk-brand-orange-hover: #E66E00;
  --pk-brand-orange-light: #FFF5EB;
  --pk-brand-green: #00C853;
  --pk-brand-green-hover: #00A844;
  --pk-brand-green-light: #E6F9EE;
  --pk-brand-blue: #007AFF;

  /* Surfaces & Canvas (Minimal Apple Light) */
  --p-canvas-bg: #F5F5F7;
  --p-surface-card: #FFFFFF;
  --p-surface-subtle: #FAFAFC;
  --p-surface-muted: #F0F0F3;
  --p-border: rgba(0, 0, 0, 0.08);
  --p-border-subtle: rgba(0, 0, 0, 0.04);
  --p-border-strong: rgba(0, 0, 0, 0.15);

  /* Typography */
  --p-ink: #1D1D1F;
  --p-ink-secondary: #424245;
  --p-subtext: #6E6E73;
  --p-subtext-light: #86868B;
  --p-font: 'Poppins', -apple-system, BlinkMacSystemFont, "SF Pro Display", "SF Pro Text", "Segoe UI", Roboto, sans-serif;

  /* Geometry & Elevation */
  --p-radius: 16px;
  --p-radius-sm: 10px;
  --p-radius-xs: 6px;
  --p-radius-pill: 9999px;

  /* Shadows */
  --p-shadow-1: 0 1px 3px rgba(0, 0, 0, 0.04), 0 1px 2px rgba(0, 0, 0, 0.02);
  --p-shadow-2: 0 4px 14px rgba(0, 0, 0, 0.05), 0 1px 3px rgba(0, 0, 0, 0.03);
  --p-shadow-3: 0 12px 32px rgba(0, 0, 0, 0.08), 0 2px 6px rgba(0, 0, 0, 0.04);
  --p-shadow-orange: 0 4px 14px rgba(255, 122, 0, 0.28);
  --p-shadow-green: 0 4px 14px rgba(0, 200, 83, 0.28);

  /* Puppertino Button Specific */
  --p-btn-border: rgba(0, 0, 0, 0.08);
  --p-btn-def-bg: #FFFFFF;
  --p-btn-def-col: #1D1D1F;
  --p-btn-dir-col: #242424;
  --p-prim-text-col: #FFFFFF;
  --p-btn-scope-unactive: #6E6E73;
  --p-btn-scope-action: #1D1D1F;

  /* Form Tokens */
  --p-input-bg: #FFFFFF;
  --p-input-color: #1D1D1F;
  --p-input-color-plac: #86868B;
  --p-input-bd: rgba(0, 0, 0, 0.12);
  --p-input-focus-bd: #FF7A00;
  --invalid-color: #FF3B30;
  --valid-color: #34C759;

  /* Modal & Action Sheet */
  --p-modal-bg: rgba(255, 255, 255, 0.94);
  --p-modal-bd-color: rgba(0, 0, 0, 0.08);
  --p-modal-fallback-color: #FFFFFF;
  --p-modal-color: #1D1D1F;
  --p-actions-bg: rgba(255, 255, 255, 0.88);
  --p-actions-static-color: #1D1D1F;
}

/* ==========================================================================
   2. BUTTONS ARCHITECTURE (Apple HIG & PlusKampus)
   ========================================================================== */
.p-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  background: var(--p-btn-def-bg);
  border: 1px solid var(--p-btn-border);
  border-radius: var(--p-radius-sm);
  color: var(--p-btn-def-col);
  font-family: var(--p-font);
  font-size: 0.875rem;
  font-weight: 600;
  line-height: 1.25;
  padding: 0.55rem 1.15rem;
  text-decoration: none;
  text-align: center;
  box-shadow: var(--p-shadow-1);
  user-select: none;
  cursor: pointer;
  transition: all 0.18s cubic-bezier(0.22, 0.61, 0.36, 1);
  vertical-align: middle;
}

.p-btn:hover {
  background: #FAFAFC;
  border-color: rgba(0, 0, 0, 0.14);
  color: #1D1D1F;
  transform: translateY(-1px);
  box-shadow: var(--p-shadow-2);
}

.p-btn:active {
  transform: translateY(0);
  box-shadow: var(--p-shadow-1);
  background: #F0F0F3;
}

.p-btn:focus-visible {
  outline: 2px solid var(--pk-brand-orange);
  outline-offset: 2px;
}

/* Button Sizes */
.p-btn.p-btn-xs {
  padding: 0.3rem 0.65rem;
  font-size: 0.75rem;
  border-radius: 8px;
}

.p-btn.p-btn-sm {
  padding: 0.4rem 0.85rem;
  font-size: 0.8125rem;
  border-radius: 8px;
}

.p-btn.p-btn-md {
  padding: 0.65rem 1.4rem;
  font-size: 0.95rem;
}

.p-btn.p-btn-lg {
  padding: 0.85rem 1.8rem;
  font-size: 1.05rem;
  border-radius: 14px;
}

.p-btn.p-btn-block {
  display: flex;
  width: 100%;
}

/* Primary Orange Button */
.p-btn-orange,
.p-btn-primary {
  background: linear-gradient(180deg, #FF8A00 0%, #FF6F00 100%) !important;
  color: #FFFFFF !important;
  border: 1px solid rgba(0, 0, 0, 0.05) !important;
  box-shadow: inset 0 1px 1px rgba(255, 255, 255, 0.35), var(--p-shadow-orange) !important;
  font-weight: 700 !important;
}

.p-btn-orange:hover,
.p-btn-primary:hover {
  background: linear-gradient(180deg, #FFA024 0%, #FF7A00 100%) !important;
  color: #FFFFFF !important;
  transform: translateY(-1px);
  box-shadow: inset 0 1px 1px rgba(255, 255, 255, 0.45), 0 6px 18px rgba(255, 122, 0, 0.38) !important;
}

.p-btn-orange:active,
.p-btn-primary:active {
  background: #E66E00 !important;
  transform: translateY(0);
}

/* Green Success Button */
.p-btn-green,
.p-btn-success {
  background: linear-gradient(180deg, #10D860 0%, #00C853 100%) !important;
  color: #FFFFFF !important;
  border: 1px solid rgba(0, 0, 0, 0.05) !important;
  box-shadow: inset 0 1px 1px rgba(255, 255, 255, 0.35), var(--p-shadow-green) !important;
  font-weight: 700 !important;
}

.p-btn-green:hover,
.p-btn-success:hover {
  filter: brightness(1.05);
  transform: translateY(-1px);
}

/* Blue Accent Button */
.p-btn-blue {
  background: linear-gradient(180deg, #1A8CFF 0%, #007AFF 100%) !important;
  color: #FFFFFF !important;
  border: 1px solid rgba(0, 0, 0, 0.05) !important;
  box-shadow: inset 0 1px 1px rgba(255, 255, 255, 0.35), 0 4px 14px rgba(0, 122, 255, 0.28) !important;
  font-weight: 700 !important;
}

/* Flat & Ghost Buttons */
.p-btn-flat {
  background: transparent !important;
  border-color: transparent !important;
  box-shadow: none !important;
  color: var(--p-ink) !important;
}

.p-btn-flat:hover {
  background: rgba(0, 0, 0, 0.05) !important;
}

.p-btn-stroke {
  background: #FFFFFF !important;
  border: 1px solid rgba(0, 0, 0, 0.12) !important;
  color: var(--p-ink) !important;
}

.p-btn-stroke:hover {
  border-color: var(--pk-brand-orange) !important;
  color: var(--pk-brand-orange) !important;
}

/* Icon Buttons */
.p-btn-icon {
  width: 38px;
  height: 38px;
  padding: 0 !important;
  border-radius: var(--p-radius-sm);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.p-btn-icon.p-btn-sm {
  width: 30px;
  height: 30px;
  border-radius: 8px;
}

.p-btn-icon.p-btn-xs {
  width: 26px;
  height: 26px;
  border-radius: 6px;
}

.p-btn-icon-no-border {
  border: 0 !important;
  background: transparent !important;
  box-shadow: none !important;
}

.p-btn-icon-no-border:hover {
  background: rgba(0, 0, 0, 0.05) !important;
}

/* Destructive Button */
.p-btn-destructive {
  color: #FF3B30 !important;
  border-color: rgba(255, 59, 48, 0.25) !important;
}

.p-btn-destructive:hover {
  background: #FFF2F2 !important;
  border-color: #FF3B30 !important;
}

/* Disabled State */
.p-btn[disabled],
.p-btn:disabled,
.p-btn-disabled {
  opacity: 0.55 !important;
  cursor: not-allowed !important;
  pointer-events: none !important;
  box-shadow: none !important;
  transform: none !important;
}

/* ==========================================================================
   3. CARDS & SURFACES (Clean Minimal Architecture)
   ========================================================================== */
.p-card {
  background: var(--p-surface-card);
  border: 1px solid var(--p-border);
  border-radius: var(--p-radius);
  color: var(--p-ink);
  box-shadow: var(--p-shadow-1);
  transition: box-shadow 0.2s ease, transform 0.2s ease, border-color 0.2s ease;
  position: relative;
}

.p-card-hover:hover {
  transform: translateY(-2px);
  box-shadow: var(--p-shadow-2);
  border-color: rgba(0, 0, 0, 0.12);
}

.p-card-header {
  padding: 18px 22px;
  border-bottom: 1px solid var(--p-border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.p-card-title {
  margin: 0;
  font-size: 1.1rem;
  font-weight: 700;
  letter-spacing: -0.015em;
  color: var(--p-ink);
}

.p-card-body {
  padding: 22px;
}

.p-card-footer {
  padding: 14px 22px;
  border-top: 1px solid var(--p-border);
  background: var(--p-surface-subtle);
  border-bottom-left-radius: inherit;
  border-bottom-right-radius: inherit;
}

/* ==========================================================================
   4. FORMS & INPUT CONTROLS (Apple HIG)
   ========================================================================== */
.p-form-group {
  margin-bottom: 1rem;
}

.p-form-label {
  display: block;
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--p-subtext);
  margin-bottom: 0.4rem;
}

.p-form-text,
input[type="text"].p-form-text,
input[type="email"].p-form-text,
input[type="password"].p-form-text,
input[type="number"].p-form-text,
input[type="tel"].p-form-text,
textarea.p-form-text {
  width: 100%;
  box-sizing: border-box;
  background: var(--p-input-bg);
  border: 1px solid var(--p-input-bd);
  border-radius: var(--p-radius-sm);
  color: var(--p-input-color);
  font-family: var(--p-font);
  font-size: 0.875rem;
  font-weight: 500;
  padding: 0.65rem 0.95rem;
  line-height: 1.4;
  outline: none;
  transition: border-color 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
  box-shadow: inset 0 1px 2px rgba(0, 0, 0, 0.02);
}

.p-form-text::placeholder {
  color: var(--p-input-color-plac);
  font-weight: 400;
}

.p-form-text:hover {
  border-color: rgba(0, 0, 0, 0.22);
}

.p-form-text:focus {
  border-color: var(--pk-brand-orange);
  box-shadow: 0 0 0 3px rgba(255, 122, 0, 0.18);
  background: #FFFFFF;
}

/* Custom Select Architecture */
.p-form-select {
  position: relative;
  display: inline-block;
  width: 100%;
}

.p-form-select select {
  width: 100%;
  appearance: none;
  -webkit-appearance: none;
  -moz-appearance: none;
  background-color: #FFFFFF;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 24 24' stroke='%23FF7A00' stroke-width='2.5'%3E%3Cpath stroke-linecap='round' stroke-linejoin='round' d='M19 9l-7 7-7-7'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 0.85rem center;
  background-size: 1rem 1rem;
  border: 1px solid var(--p-input-bd);
  border-radius: var(--p-radius-sm);
  color: var(--p-input-color);
  font-family: var(--p-font);
  font-size: 0.875rem;
  font-weight: 600;
  padding: 0.65rem 2.4rem 0.65rem 0.95rem;
  line-height: 1.4;
  outline: none;
  cursor: pointer;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
  box-shadow: inset 0 1px 2px rgba(0, 0, 0, 0.02);
}

.p-form-select select:hover {
  border-color: rgba(0, 0, 0, 0.22);
}

.p-form-select select:focus {
  border-color: var(--pk-brand-orange);
  box-shadow: 0 0 0 3px rgba(255, 122, 0, 0.18);
}

/* Switches (Apple iOS Style) */
.p-form-switch {
  position: relative;
  display: inline-block;
  width: 44px;
  height: 26px;
  cursor: pointer;
}

.p-form-switch input {
  opacity: 0;
  width: 0;
  height: 0;
}

.p-form-switch-slider {
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  background-color: #E5E5EA;
  border-radius: 34px;
  transition: 0.25s cubic-bezier(0.22, 0.61, 0.36, 1);
}

.p-form-switch-slider:before {
  position: absolute;
  content: "";
  height: 22px;
  width: 22px;
  left: 2px;
  bottom: 2px;
  background-color: white;
  border-radius: 50%;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
  transition: 0.25s cubic-bezier(0.22, 0.61, 0.36, 1);
}

.p-form-switch input:checked + .p-form-switch-slider {
  background-color: var(--pk-brand-orange);
}

.p-form-switch input:checked + .p-form-switch-slider:before {
  transform: translateX(18px);
}

/* ==========================================================================
   5. SEGMENTED CONTROLS (iOS Switchers)
   ========================================================================== */
.p-segmented-controls {
  display: inline-flex;
  background: rgba(0, 0, 0, 0.06);
  padding: 3px;
  border-radius: 10px;
  position: relative;
  user-select: none;
}

.p-segmented-item {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 5px 14px;
  font-family: var(--p-font);
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--p-subtext);
  border-radius: 8px;
  text-decoration: none;
  cursor: pointer;
  transition: color 0.15s ease, background 0.15s ease, box-shadow 0.15s ease;
  z-index: 1;
}

.p-segmented-item:hover {
  color: var(--p-ink);
}

.p-segmented-item.active {
  background: #FFFFFF;
  color: var(--p-ink);
  font-weight: 700;
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.12), 0 0 1px rgba(0, 0, 0, 0.08);
}

/* ==========================================================================
   6. TABS (Clean Navigation Tabs)
   ========================================================================== */
.p-tabs-container {
  display: flex;
  align-items: center;
  gap: 6px;
  border-bottom: 1px solid var(--p-border);
  margin-bottom: 1.25rem;
  overflow-x: auto;
}

.p-tab {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 16px;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--p-subtext);
  text-decoration: none;
  border-bottom: 2px solid transparent;
  margin-bottom: -1px;
  transition: all 0.15s ease;
  cursor: pointer;
  white-space: nowrap;
}

.p-tab:hover {
  color: var(--p-ink);
}

.p-tab.active {
  color: var(--pk-brand-orange);
  border-bottom-color: var(--pk-brand-orange);
  font-weight: 700;
}

/* ==========================================================================
   7. BADGES & STATUS PILLS
   ========================================================================== */
.p-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  border-radius: var(--p-radius-pill);
  font-size: 0.72rem;
  font-weight: 700;
  line-height: 1;
  letter-spacing: 0.01em;
  white-space: nowrap;
}

.p-badge-orange {
  background: rgba(255, 122, 0, 0.12);
  color: #D96800;
}

.p-badge-green {
  background: rgba(0, 200, 83, 0.12);
  color: #008738;
}

.p-badge-blue {
  background: rgba(0, 122, 255, 0.12);
  color: #0066CC;
}

.p-badge-gray {
  background: rgba(0, 0, 0, 0.06);
  color: #555558;
}

.p-badge-red {
  background: rgba(255, 59, 48, 0.12);
  color: #D62A20;
}

.p-badge-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: currentColor;
}

/* ==========================================================================
   8. MODALS & ACTION SHEETS
   ========================================================================== */
.p-modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.4);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  z-index: 999;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 16px;
}

.p-modal-backdrop.open {
  display: flex;
}

.p-modal {
  background: var(--p-modal-bg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--p-modal-bd-color);
  border-radius: 20px;
  box-shadow: var(--p-shadow-3);
  max-width: 520px;
  width: 100%;
  overflow: hidden;
  animation: pModalIn 0.22s cubic-bezier(0.22, 0.61, 0.36, 1);
}

@keyframes pModalIn {
  from { opacity: 0; transform: scale(0.96) translateY(6px); }
  to { opacity: 1; transform: scale(1) translateY(0); }
}

.p-modal-header {
  padding: 20px 24px;
  border-bottom: 1px solid var(--p-border);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.p-modal-body {
  padding: 24px;
}

.p-modal-footer {
  padding: 16px 24px;
  border-top: 1px solid var(--p-border);
  background: var(--p-surface-subtle);
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 10px;
}