/*
=============================================================
  Fichier    : main.css
  Projet     : Financial Analyzer
  Description: Styles globaux — reset, layout, sidebar, topbar
  Auteur     : Claude Marcel
  Version    : 1.0
  Date       : 2026-03-20
  Dépend de  : variables.css
=============================================================
*/

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap');
@import 'variables.css';

/* ==================== RESET & BASE ==================== */

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

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

body {
  font-family: var(--font-primary);
  font-size: var(--text-base);
  font-weight: var(--weight-regular);
  color: var(--text-primary);
  background-color: var(--bg-app);
  line-height: var(--line-height-normal);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

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

a:hover {
  color: var(--color-blue-hover);
}

ul, ol {
  list-style: none;
}

img, svg {
  display: block;
  max-width: 100%;
}

button {
  cursor: pointer;
  border: none;
  background: none;
  font-family: var(--font-primary);
  font-size: var(--text-base);
}

input, select, textarea {
  font-family: var(--font-primary);
  font-size: var(--text-base);
  outline: none;
}

/* ==================== LAYOUT PRINCIPAL (Sidebar + Contenu) ==================== */

.app-layout {
  display: flex;
  min-height: 100vh;
}

/* ==================== PAGE D'ACCUEIL (sans sidebar) ==================== */

.page-landing {
  min-height: 100vh;
  background: linear-gradient(135deg, #0f172a 0%, #1e3a5f 50%, #0f172a 100%);
  display: flex;
  flex-direction: column;
}

/* ==================== SIDEBAR ==================== */

.sidebar {
  width: var(--sidebar-width);
  min-height: 100vh;
  background: var(--sidebar-bg);
  display: flex;
  flex-direction: column;
  position: fixed;
  top: 0;
  left: 0;
  bottom: 0;
  z-index: 100;
  border-right: 1px solid var(--sidebar-border);
  overflow: hidden;
  transition: transform var(--transition-slow);
}

/* Logo */
.sidebar-logo {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-5) var(--space-5);
  border-bottom: 1px solid var(--sidebar-border);
  min-height: var(--topbar-height);
  text-decoration: none;
}

.sidebar-logo-icon {
  width: 36px;
  height: 36px;
  background: var(--color-blue);
  border-radius: var(--border-radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  box-shadow: var(--shadow-blue);
}

.sidebar-logo-icon svg {
  width: 20px;
  height: 20px;
  color: #fff;
}

.sidebar-logo-text {
  display: flex;
  flex-direction: column;
}

.sidebar-logo-name {
  font-size: var(--text-md);
  font-weight: var(--weight-bold);
  color: var(--sidebar-logo-text);
  letter-spacing: -0.3px;
  line-height: 1.1;
}

.sidebar-logo-sub {
  font-size: var(--text-xs);
  color: var(--sidebar-text);
  font-weight: var(--weight-medium);
  letter-spacing: 0.5px;
  text-transform: uppercase;
}

/* Navigation */
.sidebar-nav {
  flex: 1;
  padding: var(--space-4) var(--space-3);
  overflow-y: auto;
  scrollbar-width: none;
}

.sidebar-nav::-webkit-scrollbar {
  display: none;
}

.sidebar-nav-section {
  margin-bottom: var(--space-2);
}

.sidebar-nav-label {
  font-size: var(--text-xs);
  font-weight: var(--weight-semibold);
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.8px;
  padding: var(--space-3) var(--space-3) var(--space-2);
  opacity: 0.6;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3) var(--space-3);
  border-radius: var(--border-radius-sm);
  color: var(--sidebar-text);
  font-size: var(--text-base);
  font-weight: var(--weight-medium);
  cursor: pointer;
  transition: background var(--transition-fast), color var(--transition-fast);
  position: relative;
  text-decoration: none;
  margin-bottom: 2px;
}

.nav-item svg {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
  opacity: 0.8;
  transition: opacity var(--transition-fast);
}

.nav-item:hover {
  background: rgba(255, 255, 255, 0.07);
  color: var(--sidebar-text-hover);
}

.nav-item:hover svg {
  opacity: 1;
}

.nav-item.active {
  background: var(--sidebar-active-bg);
  color: var(--sidebar-active);
}

.nav-item.active svg {
  opacity: 1;
}

/* Badge de navigation (ex: alertes) */
.nav-badge {
  margin-left: auto;
  background: var(--color-blue);
  color: #fff;
  font-size: 10px;
  font-weight: var(--weight-bold);
  padding: 1px 6px;
  border-radius: var(--border-radius-full);
  min-width: 18px;
  text-align: center;
  line-height: 16px;
  height: 16px;
}

.nav-badge.premium {
  background: var(--color-premium);
  font-size: 9px;
  letter-spacing: 0.3px;
}

/* Séparateur */
.sidebar-divider {
  height: 1px;
  background: var(--sidebar-border);
  margin: var(--space-3) var(--space-3);
}

/* Profil utilisateur en bas de sidebar */
.sidebar-user {
  padding: var(--space-4) var(--space-4);
  border-top: 1px solid var(--sidebar-border);
  display: flex;
  align-items: center;
  gap: var(--space-3);
  cursor: pointer;
  transition: background var(--transition-fast);
  border-radius: 0;
}

.sidebar-user:hover {
  background: rgba(255, 255, 255, 0.05);
}

.user-avatar {
  width: 34px;
  height: 34px;
  border-radius: var(--border-radius-full);
  background: linear-gradient(135deg, #2563eb, #7c3aed);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--text-sm);
  font-weight: var(--weight-bold);
  color: #fff;
  flex-shrink: 0;
}

.user-info {
  flex: 1;
  overflow: hidden;
}

.user-name {
  font-size: var(--text-sm);
  font-weight: var(--weight-semibold);
  color: var(--sidebar-text-hover);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.user-plan {
  font-size: var(--text-xs);
  color: var(--color-premium);
  font-weight: var(--weight-medium);
}

.user-plan.free {
  color: var(--sidebar-text);
}

/* ==================== ZONE PRINCIPALE ==================== */

.main-content {
  margin-left: var(--sidebar-width);
  flex: 1;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* ==================== TOPBAR ==================== */

.topbar {
  height: var(--topbar-height);
  background: var(--bg-header);
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  padding: 0 var(--space-6);
  gap: var(--space-4);
  position: sticky;
  top: 0;
  z-index: 50;
  box-shadow: var(--shadow-xs);
}

/* Fil d'Ariane */
.breadcrumb {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-sm);
  color: var(--text-muted);
}

.breadcrumb-item {
  color: var(--text-muted);
}

.breadcrumb-item.active {
  color: var(--text-primary);
  font-weight: var(--weight-medium);
}

.breadcrumb-sep {
  color: var(--border-color-dark);
}

/* Recherche dans topbar */
.topbar-search {
  flex: 1;
  max-width: 480px;
  position: relative;
  margin: 0 auto;
}

.topbar-search-input {
  width: 100%;
  height: 38px;
  background: var(--bg-input);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-full);
  padding: 0 var(--space-4) 0 var(--space-8);
  font-size: var(--text-sm);
  color: var(--text-primary);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.topbar-search-input:focus {
  border-color: var(--color-blue);
  box-shadow: 0 0 0 3px var(--color-blue-light);
  background: #fff;
}

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

.topbar-search-icon {
  position: absolute;
  left: var(--space-3);
  top: 50%;
  transform: translateY(-50%);
  width: 16px;
  height: 16px;
  color: var(--text-muted);
  pointer-events: none;
}

/* Actions topbar (droite) */
.topbar-actions {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  margin-left: auto;
}

.topbar-btn {
  width: 36px;
  height: 36px;
  border-radius: var(--border-radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
  transition: background var(--transition-fast), color var(--transition-fast);
  position: relative;
}

.topbar-btn:hover {
  background: var(--bg-input);
  color: var(--text-primary);
}

.topbar-btn svg {
  width: 18px;
  height: 18px;
}

.topbar-btn .notification-dot {
  position: absolute;
  top: 7px;
  right: 7px;
  width: 7px;
  height: 7px;
  background: var(--color-negative);
  border-radius: 50%;
  border: 2px solid #fff;
}

/* ==================== ZONE DE CONTENU ==================== */

.content-area {
  flex: 1;
  padding: var(--space-6);
  max-width: var(--content-max-width);
  width: 100%;
  margin: 0 auto;
}

/* ==================== PAGE VIDE (état initial) ==================== */

.empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 60vh;
  text-align: center;
  gap: var(--space-4);
}

.empty-state-icon {
  width: 80px;
  height: 80px;
  background: var(--color-blue-light);
  border-radius: var(--border-radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-blue);
}

.empty-state-icon svg {
  width: 36px;
  height: 36px;
}

.empty-state-title {
  font-size: var(--text-xl);
  font-weight: var(--weight-semibold);
  color: var(--text-primary);
}

.empty-state-text {
  font-size: var(--text-base);
  color: var(--text-secondary);
  max-width: 380px;
  line-height: var(--line-height-loose);
}

/* ==================== UTILITAIRES ==================== */

.text-positive { color: var(--color-positive); }
.text-negative { color: var(--color-negative); }
.text-neutral  { color: var(--color-neutral); }
.text-muted    { color: var(--text-muted); }
.text-secondary{ color: var(--text-secondary); }

.font-medium   { font-weight: var(--weight-medium); }
.font-semibold { font-weight: var(--weight-semibold); }
.font-bold     { font-weight: var(--weight-bold); }
.font-mono     { font-family: var(--font-mono); }

.flex          { display: flex; }
.flex-center   { display: flex; align-items: center; }
.flex-between  { display: flex; align-items: center; justify-content: space-between; }
.flex-col      { display: flex; flex-direction: column; }
.gap-1         { gap: var(--space-1); }
.gap-2         { gap: var(--space-2); }
.gap-3         { gap: var(--space-3); }
.gap-4         { gap: var(--space-4); }

.grid-2        { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-4); }
.grid-3        { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-4); }
.grid-4        { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--space-4); }

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  border: 0;
}