/* === Brand: CSS Variables === */
:root {
  --font-body: 'DM Sans', sans-serif;
  --font-display: 'DM Serif Display', serif;

  --grey-50:  #FAFAF9;
  --grey-100: #F5F5F4;
  --grey-200: #E7E5E4;
  --grey-300: #D6D3D1;
  --grey-400: #A8A29E;
  --grey-500: #78716C;
  --grey-600: #57534E;
  --grey-800: #292524;
  --grey-900: #1C1917;
  --grey-950: #0F0F0F;

  --pink: #FF2867;

  --bg: var(--grey-50);
  --surface: #FFFFFF;
  --text: var(--grey-900);
  --text-muted: var(--grey-600);
  --border: var(--grey-200);
  --accent: var(--pink);
  --accent-hover: #E6164F;

  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;
  --space-3xl: 4rem;

  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;
  --radius-full: 9999px;

  --shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
  --shadow-md: 0 4px 6px rgba(0,0,0,0.07);
  --shadow-lg: 0 10px 15px rgba(0,0,0,0.1);

  --ease-out-quart: cubic-bezier(.165, .84, .44, 1);
  --dur-1: 120ms;
  --dur-2: 180ms;
  --dur-3: 240ms;
  --transition-fast: 150ms ease;
  --transition-normal: 250ms ease;

  --sidebar-width: 220px;
  --sidebar-collapsed-width: 60px;
}

:root.dark {
  --bg: var(--grey-950);
  --surface: var(--grey-900);
  --text: var(--grey-50);
  --text-muted: var(--grey-400);
  --border: var(--grey-800);
  --accent-hover: #FF5088;
  --shadow-sm: 0 1px 2px rgba(0,0,0,0.2);
  --shadow-md: 0 4px 6px rgba(0,0,0,0.3);
  --shadow-lg: 0 10px 15px rgba(0,0,0,0.4);
}

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

body {
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4, h5, h6 { line-height: 1.2; font-weight: 600; }
h1 { font-family: var(--font-display); font-weight: 400; font-size: 2.5rem; }

a { color: var(--accent); text-decoration: none; transition: color var(--transition-fast); }
a:hover { color: var(--text); }

button, .btn {
  font-family: var(--font-body);
  font-weight: 500;
  padding: var(--space-sm) var(--space-lg);
  border-radius: var(--radius-md);
  border: none;
  cursor: pointer;
  transition: background-color var(--transition-fast), color var(--transition-fast), transform var(--transition-fast);
}

.btn-primary { background: var(--accent); color: white; }
.btn-primary:hover { background: var(--accent-hover); transform: translateY(-1px); box-shadow: var(--shadow-md); }
.btn-primary:disabled { opacity: 0.5; transform: none; cursor: not-allowed; }

.btn-secondary { background: transparent; color: var(--text); border: 1px solid var(--border); }
.btn-secondary:hover { border-color: var(--text-muted); }

input, textarea, select {
  font-family: var(--font-body);
  font-size: 1rem;
  padding: var(--space-sm) var(--space-md);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  background: var(--surface);
  color: var(--text);
  transition: border-color var(--transition-fast);
}
input:focus, textarea:focus { outline: none; border-color: var(--accent); }

/* === Layout === */
.app-content {
  flex: 1;
  min-width: 0;
  transition: margin-left var(--transition-normal);
}

.sidebar ~ .app-content { margin-left: var(--sidebar-collapsed-width); }

.app-content:has(.auth-view),
.app-content:has(.landing) { max-width: none; padding: 0; margin-left: 0 !important; }

/* === Sidebar === */
.sidebar {
  position: fixed;
  top: 0; left: 0;
  width: var(--sidebar-width);
  height: 100dvh;
  display: grid;
  grid-template-columns: var(--sidebar-collapsed-width) 1fr;
  overflow: clip;
  isolation: isolate;
  pointer-events: none;
  z-index: 200;
}

.sidebar-icons, .sidebar-labels { pointer-events: auto; }

.sidebar-icons {
  grid-column: 1;
  display: grid;
  grid-template-rows: 56px 1fr auto;
  background: var(--surface);
  box-shadow: 1px 0 0 0 var(--border);
  contain: strict;
  will-change: transform;
  transform: translateZ(0);
  z-index: 2;
}

.sidebar-labels {
  grid-column: 2;
  display: grid;
  grid-template-rows: 56px 1fr auto;
  background: var(--surface);
  box-shadow: 1px 0 0 0 var(--border);
  border-radius: 0 var(--radius-lg) var(--radius-lg) 0;
  overflow: hidden;
  transform: translateX(0);
  opacity: 1;
  transition: transform 240ms var(--ease-out-quart), opacity 200ms ease;
  will-change: transform, opacity;
  contain: layout style paint;
  z-index: 1;
}

.sidebar.collapsed .sidebar-labels {
  transform: translateX(-100%);
  opacity: 0;
  pointer-events: none;
}

.icon-btn {
  display: grid;
  place-items: center;
  width: 48px; height: 48px;
  margin: 0 auto;
  border: none; background: transparent;
  color: var(--text-muted);
  border-radius: var(--radius-md);
  cursor: pointer; padding: 0;
  transition: color var(--transition-fast), background-color var(--transition-fast);
}
.icon-btn:hover { color: var(--text); background: var(--grey-100); }
:root.dark .icon-btn:hover { background: var(--grey-800); }
.icon-btn.active { color: var(--accent); }
.icon-btn svg { width: 20px; height: 20px; }

.toggle-btn { transform: rotate(0deg); transition: transform var(--dur-3) var(--ease-out-quart), color var(--transition-fast); }
.sidebar.collapsed .toggle-btn { transform: rotate(180deg); }

.sidebar-nav, .labels-nav { display: flex; flex-direction: column; gap: var(--space-xs); padding: var(--space-sm) 0; }
.sidebar-actions, .labels-actions { display: flex; flex-direction: column; gap: var(--space-xs); padding: var(--space-sm) 0; border-top: 1px solid var(--border); }

.label-btn {
  display: block;
  width: 100%;
  padding: var(--space-sm) var(--space-md);
  text-align: left;
  border: none;
  background: none;
  color: var(--text-muted);
  font-size: 0.875rem;
  cursor: pointer;
  white-space: nowrap;
  text-decoration: none;
  transition: color var(--transition-fast);
}
.label-btn:hover { color: var(--text); }
.label-btn.active { color: var(--accent); }

.labels-header { display: grid; place-items: center start; padding: 0 var(--space-md); }
.brand-name { font-family: var(--font-display); font-size: 1.25rem; color: var(--text); white-space: nowrap; }

.sidebar-backdrop {
  position: fixed; inset: 0;
  background: rgba(0,0,0,0.4);
  opacity: 0; pointer-events: none;
  transition: opacity var(--dur-3) var(--ease-out-quart);
  z-index: 199;
}
.sidebar-backdrop.visible { opacity: 1; pointer-events: auto; }

/* Mobile nav toggle (external chevron in App.js) */
.mobile-nav-toggle {
  display: none;
  position: fixed;
  top: var(--space-sm);
  left: var(--space-sm);
  z-index: 201;
  width: 44px;
  height: 44px;
  background: var(--surface);
  border: none;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
  cursor: pointer;
  color: var(--text);
  transform: rotate(180deg); /* points right = "open" */
  transition: transform var(--dur-3) var(--ease-out-quart), background var(--transition-fast), box-shadow var(--transition-fast);
}
.mobile-nav-toggle.open {
  transform: rotate(0deg); /* points left = "close" */
  background: transparent;
  box-shadow: none;
}
.mobile-nav-toggle svg { display: block; width: 24px; height: 24px; min-width: 24px; min-height: 24px; }

/* Mobile: sidebar off-screen, external toggle visible */
@media (max-width: 767px) {
  .mobile-nav-toggle { display: flex; align-items: center; justify-content: center; }
  .sidebar { transform: translateX(calc(-1 * var(--sidebar-width))); transition: transform var(--dur-3) var(--ease-out-quart); pointer-events: none; }
  .sidebar.expanded { transform: translateX(0); pointer-events: auto; }
  .sidebar.expanded .sidebar-labels { transform: translateX(0); opacity: 1; pointer-events: auto; }
  .sidebar ~ .app-content { margin-left: 0; }
  .sidebar .toggle-btn { display: none; }
}

/* === Landing === */
.landing { min-height: 100dvh; }

.landing-hero {
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: var(--space-3xl) var(--space-lg);
  min-height: 40vh;
}

.landing-hero-text h1 {
  font-size: clamp(2rem, 6vw, 4rem);
  margin-bottom: var(--space-sm);
}

.landing-subtitle {
  font-size: 1.125rem;
  color: var(--text-muted);
  font-weight: 300;
}

.landing-gallery {
  padding: 0 var(--space-lg) var(--space-2xl);
  max-width: 1200px;
  margin: 0 auto;
}

.masonry-grid {
  columns: 3 250px;
  column-gap: var(--space-md);
}

.masonry-item {
  break-inside: avoid;
  margin-bottom: var(--space-md);
  border-radius: var(--radius-lg);
  overflow: hidden;
  cursor: pointer;
  transition: transform var(--transition-fast);
}
.masonry-item:hover { transform: scale(1.02); }

.masonry-item img,
.masonry-item video {
  width: 100%;
  display: block;
  object-fit: cover;
}

/* Subscribe */
.landing-subscribe {
  display: flex;
  justify-content: center;
  padding: var(--space-3xl) var(--space-lg);
  background: var(--surface);
  border-top: 1px solid var(--border);
}

.subscribe-card {
  text-align: center;
  max-width: 480px;
}

.subscribe-card h2 {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: 1.75rem;
  margin-bottom: var(--space-sm);
}

.subscribe-card > p {
  color: var(--text-muted);
  margin-bottom: var(--space-lg);
}

.subscribe-form {
  display: flex;
  gap: var(--space-sm);
}

.subscribe-form input {
  flex: 1;
  min-width: 0;
}

.subscribe-success { color: #16a34a; margin-top: var(--space-sm); font-size: 0.875rem; }
.subscribe-error { color: var(--accent); margin-top: var(--space-sm); font-size: 0.875rem; }

@media (max-width: 480px) {
  .subscribe-form { flex-direction: column; }
}

/* Footer */
.landing-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--space-lg);
  color: var(--text-muted);
  font-size: 0.75rem;
  border-top: 1px solid var(--border);
}

.footer-login {
  color: var(--text-muted);
  font-size: 0.75rem;
  opacity: 0.5;
  transition: opacity var(--transition-fast);
}
.footer-login:hover { opacity: 1; color: var(--text-muted); }

/* Lightbox */
.lightbox-overlay {
  position: fixed;
  inset: 0;
  z-index: 500;
  background: rgba(0,0,0,0.9);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-lg);
}

.lightbox-close {
  position: absolute;
  top: var(--space-lg);
  right: var(--space-lg);
  background: none;
  border: none;
  color: white;
  font-size: 2rem;
  cursor: pointer;
  z-index: 501;
  padding: var(--space-sm);
}

.lightbox-media {
  max-width: 90vw;
  max-height: 85vh;
  object-fit: contain;
  border-radius: var(--radius-md);
}

/* === Auth View === */
.auth-view {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100dvh;
  padding: var(--space-lg);
}

.auth-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: var(--space-2xl);
  width: 100%;
  max-width: 380px;
  text-align: center;
}

.auth-card h1 {
  font-size: 1.75rem;
  margin-bottom: var(--space-xl);
}

.auth-form {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.auth-form input { width: 100%; }

.auth-error {
  color: var(--accent);
  font-size: 0.875rem;
}

.auth-back {
  display: inline-block;
  margin-top: var(--space-lg);
  color: var(--text-muted);
  font-size: 0.875rem;
}

/* === Admin Views === */
.admin-view {
  padding: var(--space-lg);
  max-width: 1000px;
  margin: 0 auto;
}

.admin-toolbar {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  margin-bottom: var(--space-lg);
  flex-wrap: wrap;
}

.toolbar-count {
  font-size: 0.875rem;
  color: var(--text-muted);
  font-weight: 500;
}

/* Media Admin */
.media-admin-grid {
  display: grid;
  gap: var(--space-md);
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
}

.media-admin-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.media-admin-preview img,
.media-admin-preview video {
  width: 100%;
  aspect-ratio: 1;
  object-fit: cover;
  display: block;
}

.media-admin-actions {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  padding: var(--space-sm);
  border-top: 1px solid var(--border);
}

.media-order-label {
  flex: 1;
  text-align: center;
  font-size: 0.75rem;
  color: var(--text-muted);
}

.icon-btn-sm {
  display: grid;
  place-items: center;
  width: 32px; height: 32px;
  border: none;
  background: transparent;
  color: var(--text-muted);
  border-radius: var(--radius-sm);
  cursor: pointer;
  padding: 0;
  transition: color var(--transition-fast), background-color var(--transition-fast);
}
.icon-btn-sm:hover { color: var(--text); background: var(--grey-100); }
:root.dark .icon-btn-sm:hover { background: var(--grey-800); }
.icon-btn-sm.danger:hover { color: var(--accent); }
.icon-btn-sm:disabled { opacity: 0.3; cursor: not-allowed; }
.icon-btn-sm svg { width: 16px; height: 16px; }

.upload-btn { position: relative; cursor: pointer; }

/* Subscribers */
.subscribers-list {
  display: flex;
  flex-direction: column;
  gap: 1px;
  background: var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.subscriber-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-md);
  background: var(--surface);
}

.subscriber-info { display: flex; flex-direction: column; gap: 2px; }
.subscriber-email { font-weight: 500; }
.subscriber-date { font-size: 0.75rem; color: var(--text-muted); }

/* Newsletter Editor */
.subject-input {
  flex: 1;
  font-size: 1.125rem;
  font-weight: 500;
  padding: var(--space-md);
}

.editor-toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
  padding: var(--space-sm);
  background: var(--surface);
  border: 1px solid var(--border);
  border-bottom: none;
  border-radius: var(--radius-md) var(--radius-md) 0 0;
}

.editor-btn {
  display: grid;
  place-items: center;
  min-width: 36px;
  height: 36px;
  border: none;
  background: transparent;
  color: var(--text-muted);
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-size: 0.8rem;
  font-family: var(--font-body);
  padding: 0 var(--space-sm);
  transition: color var(--transition-fast), background-color var(--transition-fast);
}
.editor-btn:hover { color: var(--text); background: var(--grey-100); }
:root.dark .editor-btn:hover { background: var(--grey-800); }

.editor-content {
  min-height: 300px;
  padding: var(--space-lg);
  background: var(--surface);
  border: 1px solid var(--border);
  border-top: none;
  border-radius: 0 0 var(--radius-md) var(--radius-md);
  color: var(--text);
  font-size: 1rem;
  line-height: 1.7;
  outline: none;
}

.editor-content:focus { border-color: var(--accent); }
.editor-content h1 { font-family: var(--font-display); font-weight: 400; font-size: 1.75rem; margin-bottom: var(--space-sm); }
.editor-content h2 { font-size: 1.375rem; margin-bottom: var(--space-sm); }
.editor-content h3 { font-size: 1.125rem; margin-bottom: var(--space-sm); }
.editor-content p { margin-bottom: var(--space-sm); }
.editor-content ul, .editor-content ol { padding-left: var(--space-xl); margin-bottom: var(--space-sm); }
.editor-content img { max-width: 100%; border-radius: var(--radius-md); margin: var(--space-sm) 0; }
.editor-content a { color: var(--accent); }

.newsletter-actions {
  display: flex;
  gap: var(--space-md);
  margin-top: var(--space-lg);
  flex-wrap: wrap;
}

.send-result {
  margin-top: var(--space-md);
  font-size: 0.875rem;
  color: #16a34a;
}
.send-result.error { color: var(--accent); }

/* Empty state */
.empty-state {
  text-align: center;
  padding: var(--space-3xl);
  color: var(--text-muted);
}

/* PWA display mode */
@media (display-mode: standalone) {
  .hide-in-pwa { display: none !important; }
}
@media not (display-mode: standalone) {
  .hide-in-browser { display: none !important; }
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
}