/*
  Windows 11 Fluent Design System
  Implements Mica/Acrylic effects, Segoe UI Variable typography,
  rounded corners, and native-feeling controls.
*/

:root {
  /* Typography */
  --font-family: "Segoe UI Variable", "Segoe UI", "Segoe UI Web (West European)", system-ui, -apple-system, sans-serif;

  /* Mica / Acrylic Backgrounds (Light Theme Default) */
  --color-bg-base: #f3f3f3;
  --color-mica: rgba(255, 255, 255, 0.7);
  --color-acrylic: rgba(252, 252, 252, 0.85);
  --color-acrylic-fallback: #ffffff;
  --color-panel: rgba(255, 255, 255, 0.7);

  /* Accents (Windows Blue) */
  --color-accent: #0067c0;
  --color-accent-hover: #005a9e;
  --color-accent-active: #004c87;

  /* Text */
  --color-text-primary: #1a1a1a;
  --color-text-secondary: #5d5d5d;
  --color-text-tertiary: #8b8b8b;
  --color-text-on-accent: #ffffff;

  /* Borders */
  --border-radius-sm: 4px;
  --border-radius-md: 8px;
  --border-radius-lg: 12px;
  --border-color: rgba(0, 0, 0, 0.08);
  --border-color-hover: rgba(0, 0, 0, 0.15);

  /* Controls */
  --color-control-bg: rgba(255, 255, 255, 0.7);
  --color-control-bg-hover: rgba(249, 249, 249, 0.9);
  --color-control-bg-active: rgba(240, 240, 240, 0.9);

  /* Elevations & Shadows */
  --shadow-flyout: 0 8px 16px rgba(0, 0, 0, 0.14);
  --shadow-dialog: 0 32px 64px rgba(0, 0, 0, 0.19);
  --shadow-card: 0 2px 4px rgba(0, 0, 0, 0.04);
}

@media (prefers-color-scheme: dark) {
  :root {
    --color-bg-base: #202020;
    --color-mica: rgba(32, 32, 32, 0.8);
    --color-acrylic: rgba(44, 44, 44, 0.85);
    --color-acrylic-fallback: #2c2c2c;
    --color-panel: rgba(255, 255, 255, 0.05);

    --color-accent: #4cc2ff;
    --color-accent-hover: #48b8f2;
    --color-accent-active: #44ade3;

    --color-text-primary: #ffffff;
    --color-text-secondary: #cccccc;
    --color-text-tertiary: #999999;
    --color-text-on-accent: #000000;

    --color-border: rgba(255, 255, 255, 0.08);
    --color-border-hover: rgba(255, 255, 255, 0.15);

    --color-control-bg: rgba(255, 255, 255, 0.06);
    --color-control-bg-hover: rgba(255, 255, 255, 0.08);
    --color-control-bg-active: rgba(255, 255, 255, 0.04);

    --shadow-flyout: 0 8px 16px rgba(0, 0, 0, 0.28);
    --shadow-dialog: 0 32px 64px rgba(0, 0, 0, 0.38);
    --shadow-card: 0 2px 4px rgba(0, 0, 0, 0.12);
  }
}

/* Base Reset */
html, body {
  height: 100%;
  margin: 0;
  padding: 0;
  overflow: hidden;
  box-sizing: border-box;
}

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

body {
  font-family: var(--font-family);
  background-color: var(--color-bg-base);
  color: var(--color-text-primary);
  font-size: 14px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* ─── Fluent Scrollbar ─── */
::-webkit-scrollbar {
  width: 6px;
  height: 6px;
}
::-webkit-scrollbar-track {
  background: transparent;
}
::-webkit-scrollbar-thumb {
  background: rgba(0, 0, 0, 0.18);
  border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
  background: rgba(0, 0, 0, 0.32);
}
[data-theme="dark"] ::-webkit-scrollbar-thumb {
  background: rgba(255, 255, 255, 0.2);
}
[data-theme="dark"] ::-webkit-scrollbar-thumb:hover {
  background: rgba(255, 255, 255, 0.35);
}

/* ─── Layout ─── */
.mica-app-container,
.window-shell {
  display: flex;
  height: 100vh;
  height: 100dvh;
  width: 100vw;
  max-width: 100vw;
  max-height: 100vh;
  overflow: hidden;
  background-color: var(--color-bg-base);
}

.sidebar {
  width: 260px;
  min-width: 260px;
  max-width: 260px;
  height: 100vh;
  height: 100dvh;
  padding: 16px 12px;
  display: flex;
  flex-direction: column;
  gap: 4px;
  border-right: 1px solid var(--border-color);
  background: var(--color-acrylic);
  overflow-y: auto;
  overflow-x: hidden;
  box-sizing: border-box;
  flex-shrink: 0;
}

.content-area {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  height: 100vh;
  height: 100dvh;
  overflow: hidden;
}

.main-content {
  flex: 1;
  min-width: 0;
  height: 100vh;
  height: 100dvh;
  padding: 28px 36px;
  overflow-y: auto;
  overflow-x: hidden;
  background: var(--color-panel);
  box-sizing: border-box;
  display: flex;
  flex-direction: column;
}

/* ─── Typography ─── */
h1 { font-size: 28px; font-weight: 600; margin-bottom: 24px; letter-spacing: -0.5px; }
h2 { font-size: 20px; font-weight: 600; margin-bottom: 16px; }
h3 { font-size: 16px; font-weight: 600; margin-bottom: 12px; }

.text-muted { color: var(--color-text-secondary); }
.text-caption { font-size: 12px; color: var(--color-text-tertiary); }

/* ─── Components ─── */

/* Navigation Item */
.nav-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 12px;
  border-radius: var(--border-radius-sm);
  color: var(--color-text-primary);
  text-decoration: none;
  font-weight: 400;
  transition: all 0.15s ease;
  position: relative;
}

.nav-item:hover {
  background: var(--color-control-bg-hover);
}

.nav-item:active {
  background: var(--color-control-bg-active);
  transform: scale(0.98);
}

.nav-item.active {
  background: var(--color-control-bg-hover);
  font-weight: 600;
}

.nav-item.active::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  height: 16px;
  width: 3px;
  background-color: var(--color-accent);
  border-radius: 4px;
}

/* Button */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 6px 16px;
  font-family: inherit;
  font-size: 14px;
  font-weight: 500;
  border-radius: var(--border-radius-sm);
  border: 1px solid var(--border-color);
  background: var(--color-control-bg);
  color: var(--color-text-primary);
  cursor: pointer;
  transition: all 0.1s cubic-bezier(0.4, 0, 0.2, 1);
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.05);
}

.btn:hover {
  background: var(--color-control-bg-hover);
  border-color: var(--border-color-hover);
}

.btn:active {
  background: var(--color-control-bg-active);
  transform: scale(0.97);
  box-shadow: none;
}

.btn-primary {
  background: var(--color-accent);
  color: var(--color-text-on-accent);
  border: 1px solid rgba(0, 0, 0, 0.1);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.2), 0 1px 2px rgba(0, 0, 0, 0.1);
}

.btn-primary:hover {
  background: var(--color-accent-hover);
}

.btn-primary:active {
  background: var(--color-accent-active);
}

/* Inputs */
.input-text {
  width: 100%;
  padding: 8px 12px;
  font-family: inherit;
  font-size: 14px;
  color: var(--color-text-primary);
  background: var(--color-control-bg);
  border: 1px solid var(--border-color);
  border-bottom: 2px solid var(--border-color-hover);
  border-radius: var(--border-radius-sm);
  transition: all 0.15s ease;
}

.input-text:hover {
  background: var(--color-control-bg-hover);
}

.input-text:focus {
  outline: none;
  background: var(--color-bg-base);
  border-bottom-color: var(--color-accent);
}

/* Cards (Acrylic surface) */
.card {
  background: var(--color-acrylic);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-md);
  padding: 24px;
  box-shadow: var(--shadow-card);
  margin-bottom: 24px;
}

.card.card-full {
  flex: 1;
  min-height: 0;
  display: flex;
  flex-direction: column;
  margin-bottom: 0;
  padding: 0;
  overflow: hidden;
}

/* Animations */
@keyframes fadeInSlideUp {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.animate-enter {
  animation: fadeInSlideUp 0.4s cubic-bezier(0.16, 1, 0.3, 1) forwards;
  flex: 1;
  display: flex;
  flex-direction: column;
  min-height: 0;
}

/* django.contrib.messages feedback banners (success/error) */
.error-message {
  color: #a4262c;
  background-color: #fde7e9;
  padding: 10px;
  border-radius: var(--border-radius-sm, 4px);
  font-size: 13px;
  margin-bottom: 12px;
  text-align: left;
  display: flex;
  align-items: center;
  gap: 8px;
}

.error-message.success {
  color: #107c10;
  background-color: #dff6dd;
}

[data-theme="dark"] .error-message {
  background-color: rgba(164, 38, 44, 0.2);
  color: #ff99a4;
}

[data-theme="dark"] .error-message.success {
  background-color: rgba(16, 124, 16, 0.2);
  color: #6ece56;
}

/* Simple modal overlay (Alpine.js x-show driven) */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.4);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
}

.modal-box {
  background: var(--color-acrylic-fallback, #fff);
  border-radius: var(--border-radius-sm, 4px);
  padding: 24px;
  width: 480px;
  max-width: 90vw;
  max-height: 85vh;
  overflow-y: auto;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.25);
}

[data-theme="dark"] .modal-box {
  background: #2b2b2b;
}

.modal-field {
  margin-bottom: 14px;
}

.modal-field label {
  display: block;
  font-size: 13px;
  font-weight: 500;
  margin-bottom: 6px;
  color: var(--color-text-primary);
}

.modal-field input,
.modal-field select,
.modal-field textarea {
  width: 100%;
  box-sizing: border-box;
  padding: 8px 10px;
}

/* User profile (Portal) */
.user-profile {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 8px;
}
.user-profile img {
  width: 36px;
  height: 36px;
  border-radius: 50%;
}
.user-name {
  font-weight: 600;
  font-size: 14px;
}
.user-role {
  font-size: 12px;
  color: var(--color-text-secondary);
}

/* Page Header & Top Bar */
.page-header,
.top-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 36px;
  border-bottom: 1px solid var(--border-color);
  background: var(--color-acrylic);
  flex-shrink: 0;
}
.brand {
  font-size: 18px;
  font-weight: 700;
}
.brand span {
  font-weight: normal;
  color: var(--color-text-secondary);
}
.header-actions,
.top-actions {
  display: flex;
  gap: 12px;
  align-items: center;
}
.btn-ghost {
  background: transparent;
  border-color: transparent;
}
.btn-ghost:hover {
  background: var(--color-control-bg-hover);
}
.content {
  flex: 1;
  padding: 28px 36px;
  overflow-y: auto;
}