/* =============================================
   MyOrganizer — головні стилі
   Світла тема, mobile-first підхід
   ============================================= */

/* CSS змінні — кольорова палітра */
:root {
  --color-bg: #ffffff;
  --color-bg-secondary: #f8f9fa;
  --color-bg-tertiary: #f1f3f5;
  --color-surface: #ffffff;
  --color-border: #e9ecef;
  --color-border-light: #f1f3f5;

  --color-text: #212529;
  --color-text-secondary: #6c757d;
  --color-text-muted: #adb5bd;

  --color-primary: #6366f1;
  --color-primary-hover: #5254cc;
  --color-primary-light: #eef2ff;

  --color-danger: #ef4444;
  --color-danger-hover: #dc2626;
  --color-danger-light: #fef2f2;

  --color-success: #22c55e;
  --color-success-light: #f0fdf4;

  --color-warning: #f59e0b;
  --color-warning-light: #fffbeb;

  /* Пріоритети */
  --color-priority-low: #9ca3af;
  --color-priority-medium: #f59e0b;
  --color-priority-high: #ef4444;

  /* Типи записів */
  --color-type-idea: #8b5cf6;
  --color-type-task: #3b82f6;
  --color-type-link: #10b981;

  /* Розміри */
  --header-height: 56px;
  --quick-bar-height: 64px;
  --sidebar-width: 280px;
  --border-radius: 8px;
  --border-radius-lg: 12px;
  --border-radius-xl: 16px;

  /* Тіні */
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.08);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.1);
  --shadow-lg: 0 8px 24px rgba(0,0,0,0.12);

  /* Анімації */
  --transition: 0.2s ease;
  --transition-fast: 0.12s ease;
}

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

html {
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

/* Посилання */
a {
  color: var(--color-primary);
  text-decoration: none;
}
a:hover {
  text-decoration: underline;
}

/* Зображення */
img {
  max-width: 100%;
  height: auto;
}

/* Утиліти */
.hidden {
  display: none !important;
}

/* =============================================
   Екран завантаження
   ============================================= */
.loading-screen {
  position: fixed;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 24px;
  background: var(--color-bg);
  z-index: 9999;
}

.loading-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 24px;
  font-weight: 700;
  color: var(--color-text);
}

.loading-spinner {
  width: 32px;
  height: 32px;
  border: 3px solid var(--color-border);
  border-top-color: var(--color-primary);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* =============================================
   Екран авторизації
   ============================================= */
.auth-screen {
  position: fixed;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-bg-secondary);
  padding: 16px;
  z-index: 100;
}

.auth-card {
  background: var(--color-surface);
  border-radius: var(--border-radius-xl);
  padding: 40px 32px;
  width: 100%;
  max-width: 400px;
  box-shadow: var(--shadow-lg);
  text-align: center;
}

.auth-logo {
  margin-bottom: 32px;
}

.auth-logo svg {
  display: block;
  margin: 0 auto 16px;
}

.auth-logo h1 {
  font-size: 28px;
  font-weight: 700;
  margin-bottom: 8px;
}

.auth-logo p {
  color: var(--color-text-secondary);
  font-size: 15px;
}

/* =============================================
   Головний Layout
   ============================================= */
.app {
  display: flex;
  flex-direction: column;
  min-height: 100dvh;
  min-height: 100vh;
}

/* Шапка */
.header {
  position: sticky;
  top: 0;
  z-index: 50;
  height: var(--header-height);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 12px;
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  box-shadow: var(--shadow-sm);
}

.header-left {
  display: flex;
  align-items: center;
  gap: 8px;
  flex: 1;
  min-width: 0;
}

.header-title {
  font-size: 17px;
  font-weight: 600;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 200px;
}

.header-right {
  display: flex;
  align-items: center;
  gap: 4px;
  flex-shrink: 0;
}

/* Основний вміст */
.main-content {
  flex: 1;
  overflow-y: auto;
  padding-bottom: calc(var(--quick-bar-height) + 16px);
}

/* =============================================
   Бічна панель
   ============================================= */
.sidebar-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.4);
  z-index: 200;
  backdrop-filter: blur(2px);
}

.sidebar {
  position: fixed;
  top: 0;
  left: 0;
  bottom: 0;
  width: var(--sidebar-width);
  background: var(--color-surface);
  border-right: 1px solid var(--color-border);
  z-index: 201;
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow-lg);
  transform: translateX(-100%);
  transition: transform var(--transition);
}

.sidebar.open {
  transform: translateX(0);
}

.sidebar-header {
  height: var(--header-height);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 16px;
  border-bottom: 1px solid var(--color-border);
  font-weight: 600;
  font-size: 15px;
}

.sidebar-projects-list {
  flex: 1;
  overflow-y: auto;
  padding: 8px;
}

.sidebar-footer {
  padding: 8px;
  border-top: 1px solid var(--color-border);
  display: flex;
  flex-direction: column;
  gap: 4px;
}

/* =============================================
   Глобальний пошук
   ============================================= */
.search-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
  z-index: 300;
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding-top: 80px;
  backdrop-filter: blur(4px);
}

.search-modal {
  background: var(--color-surface);
  border-radius: var(--border-radius-xl);
  width: 100%;
  max-width: 560px;
  margin: 0 16px;
  box-shadow: var(--shadow-lg);
  overflow: hidden;
}

.search-input-wrap {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 16px;
  border-bottom: 1px solid var(--color-border);
}

.search-input-wrap input {
  flex: 1;
  border: none;
  outline: none;
  font-size: 16px;
  background: transparent;
  color: var(--color-text);
}

.search-input-wrap input::placeholder {
  color: var(--color-text-muted);
}

.search-results {
  max-height: 400px;
  overflow-y: auto;
}

/* =============================================
   Екрани
   ============================================= */
.screen {
  padding: 16px;
  max-width: 720px;
  margin: 0 auto;
  width: 100%;
}

.screen-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 20px;
  gap: 12px;
}

.screen-header h2 {
  font-size: 22px;
  font-weight: 700;
  flex: 1;
}

/* =============================================
   Панель інструментів записів
   ============================================= */
.entries-toolbar {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-bottom: 16px;
}

.filter-tabs {
  display: flex;
  gap: 4px;
  background: var(--color-bg-secondary);
  border-radius: var(--border-radius);
  padding: 4px;
}

.filter-tab {
  flex: 1;
  padding: 6px 8px;
  border: none;
  background: transparent;
  border-radius: calc(var(--border-radius) - 2px);
  font-size: 13px;
  font-weight: 500;
  color: var(--color-text-secondary);
  cursor: pointer;
  transition: all var(--transition-fast);
  white-space: nowrap;
}

.filter-tab.active {
  background: var(--color-surface);
  color: var(--color-text);
  box-shadow: var(--shadow-sm);
}

.search-wrap {
  display: flex;
  align-items: center;
  gap: 8px;
  background: var(--color-bg-secondary);
  border-radius: var(--border-radius);
  padding: 8px 12px;
  border: 1px solid var(--color-border);
}

.search-wrap svg {
  flex-shrink: 0;
  color: var(--color-text-muted);
}

.search-wrap input {
  flex: 1;
  border: none;
  background: transparent;
  outline: none;
  font-size: 14px;
  color: var(--color-text);
}

.search-wrap input::placeholder {
  color: var(--color-text-muted);
}

/* =============================================
   Порожні стани
   ============================================= */
.empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  padding: 60px 20px;
  color: var(--color-text-muted);
  text-align: center;
}

.empty-state p {
  font-size: 15px;
}

/* =============================================
   Глобальна панель вводу
   ============================================= */
.quick-input-bar {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 40;
  background: var(--color-surface);
  border-top: 1px solid var(--color-border);
  padding: 10px 12px;
  box-shadow: 0 -2px 8px rgba(0,0,0,0.06);
}

.quick-input-wrap {
  display: flex;
  align-items: center;
  gap: 8px;
  max-width: 720px;
  margin: 0 auto;
  background: var(--color-bg-secondary);
  border-radius: var(--border-radius-lg);
  border: 1px solid var(--color-border);
  padding: 8px 12px;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.quick-input-wrap:focus-within {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px var(--color-primary-light);
}

.quick-add-icon {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  border: none;
  background: var(--color-primary);
  color: white;
  font-size: 18px;
  line-height: 1;
  cursor: pointer;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background var(--transition-fast);
}

.quick-add-icon:hover {
  background: var(--color-primary-hover);
}

.quick-input-wrap input {
  flex: 1;
  border: none;
  background: transparent;
  outline: none;
  font-size: 14px;
  color: var(--color-text);
  min-width: 0;
}

.quick-input-wrap input::placeholder {
  color: var(--color-text-muted);
  font-size: 13px;
}

/* =============================================
   Модальне вікно
   ============================================= */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
  z-index: 400;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 16px;
  backdrop-filter: blur(2px);
}

.modal {
  background: var(--color-surface);
  border-radius: var(--border-radius-xl);
  padding: 24px;
  width: 100%;
  max-width: 340px;
  box-shadow: var(--shadow-lg);
}

.modal p {
  font-size: 15px;
  margin-bottom: 20px;
  color: var(--color-text);
}

.modal-actions {
  display: flex;
  gap: 8px;
  justify-content: flex-end;
}

/* =============================================
   Тости (повідомлення)
   ============================================= */
.toast-container {
  position: fixed;
  bottom: calc(var(--quick-bar-height) + 16px);
  left: 50%;
  transform: translateX(-50%);
  z-index: 500;
  display: flex;
  flex-direction: column;
  gap: 8px;
  pointer-events: none;
  width: min(calc(100vw - 32px), 360px);
}

.toast {
  background: var(--color-text);
  color: white;
  padding: 10px 16px;
  border-radius: var(--border-radius-lg);
  font-size: 14px;
  box-shadow: var(--shadow-md);
  animation: toast-in 0.3s ease, toast-out 0.3s ease 2.7s forwards;
  pointer-events: auto;
}

.toast.success { background: var(--color-success); }
.toast.error { background: var(--color-danger); }
.toast.warning { background: var(--color-warning); color: var(--color-text); }

@keyframes toast-in {
  from { opacity: 0; transform: translateY(16px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes toast-out {
  from { opacity: 1; transform: translateY(0); }
  to { opacity: 0; transform: translateY(-8px); }
}

/* =============================================
   Адаптивність
   ============================================= */
@media (min-width: 640px) {
  .screen {
    padding: 24px;
  }

  .entries-toolbar {
    flex-direction: row;
    align-items: center;
  }

  .filter-tabs {
    flex-shrink: 0;
  }

  .search-wrap {
    flex: 1;
  }
}

@media (min-width: 1024px) {
  .header {
    padding: 0 24px;
  }

  .quick-input-bar {
    padding: 12px 24px;
  }
}

/* Анімація переходу між екранами */
.screen {
  animation: screen-in 0.2s ease;
}

@keyframes screen-in {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

/* Аватар користувача */
.user-avatar-btn {
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
  border-radius: 50%;
  transition: opacity var(--transition-fast);
}

.user-avatar-btn:hover {
  opacity: 0.8;
}

.user-avatar-btn img {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  object-fit: cover;
  border: 2px solid var(--color-border);
  display: block;
}

/* Форма запису */
.entry-form-container {
  max-width: 600px;
}

.form-group {
  margin-bottom: 16px;
}

.form-group label {
  display: block;
  font-size: 13px;
  font-weight: 600;
  color: var(--color-text-secondary);
  margin-bottom: 6px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.form-actions {
  margin-top: 24px;
}

/* AI завантаження */
.ai-loading {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 14px;
  background: var(--color-primary-light);
  border-radius: var(--border-radius);
  font-size: 13px;
  color: var(--color-primary);
  margin-bottom: 12px;
}

.spinner-small {
  width: 16px;
  height: 16px;
  border: 2px solid var(--color-primary-light);
  border-top-color: var(--color-primary);
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
  flex-shrink: 0;
}

/* Кнопки AI */
.ai-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 12px;
  padding: 10px;
  background: var(--color-bg-secondary);
  border-radius: var(--border-radius);
}

.ai-label {
  font-size: 12px;
  font-weight: 600;
  color: var(--color-text-secondary);
  align-self: center;
  margin-right: 4px;
}

/* Вибір типу запису */
.type-selector {
  display: flex;
  gap: 6px;
}

.type-btn {
  flex: 1;
  padding: 8px 4px;
  border: 2px solid var(--color-border);
  border-radius: var(--border-radius);
  background: var(--color-surface);
  font-size: 13px;
  cursor: pointer;
  transition: all var(--transition-fast);
  color: var(--color-text-secondary);
}

.type-btn.active {
  border-color: var(--color-primary);
  background: var(--color-primary-light);
  color: var(--color-primary);
  font-weight: 600;
}

.type-btn:hover:not(.active) {
  border-color: var(--color-text-muted);
  color: var(--color-text);
}