/* ============================================
   YT DASHBOARD — Design System
   Paleta: Dark slate + vermelho YouTube + branco
   ============================================ */

:root {
  --bg:        #0d0f12;
  --bg-2:      #151820;
  --bg-3:      #1c2030;
  --border:    #252a3a;
  --text:      #e8eaf0;
  --text-2:    #8a90a4;
  --text-3:    #555d78;
  --red:       #ff2d2d;
  --red-dark:  #c0001f;
  --red-glow:  rgba(255, 45, 45, 0.15);
  --green:     #22c55e;
  --yellow:    #eab308;
  --radius:    10px;
  --radius-lg: 16px;
  --font-disp: 'Syne', sans-serif;
  --font-body: 'Inter', sans-serif;
  --sidebar-w: 220px;
  --transition: 0.18s ease;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-body);
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  font-size: 14px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

/* ============================================
   LOGIN PAGE
   ============================================ */
.login-page {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  background: radial-gradient(ellipse at 30% 20%, rgba(255,45,45,0.08) 0%, transparent 60%),
              var(--bg);
}

.login-wrap {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 32px;
  width: 100%;
  max-width: 420px;
  padding: 24px;
}

.login-brand {
  display: flex;
  align-items: center;
  gap: 10px;
}

.brand-icon {
  color: var(--red);
  font-size: 22px;
}

.brand-name {
  font-family: var(--font-disp);
  font-size: 22px;
  font-weight: 800;
  letter-spacing: -0.5px;
}

.login-card {
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 40px 36px;
  width: 100%;
  text-align: center;
}

.login-card h1 {
  font-family: var(--font-disp);
  font-size: 32px;
  font-weight: 800;
  line-height: 1.15;
  margin-bottom: 12px;
  letter-spacing: -0.5px;
}

.login-card h1 em {
  font-style: normal;
  color: var(--red);
}

.login-sub {
  color: var(--text-2);
  font-size: 14px;
  margin-bottom: 32px;
  line-height: 1.6;
}

.btn-google {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  width: 100%;
  padding: 13px 20px;
  background: var(--bg-3);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  transition: background var(--transition), border-color var(--transition);
}

.btn-google:hover {
  background: var(--border);
  border-color: #3a4060;
}

.login-note {
  color: var(--text-3);
  font-size: 12px;
  margin-top: 14px;
}

.login-footer {
  color: var(--text-3);
  font-size: 12px;
}

/* ============================================
   APP LAYOUT
   ============================================ */
.app-page {
  display: flex;
  min-height: 100vh;
}

/* Sidebar */
.sidebar {
  width: var(--sidebar-w);
  background: var(--bg-2);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  position: fixed;
  top: 0;
  left: 0;
  height: 100vh;
  z-index: 100;
  padding: 20px 0;
}

.sidebar-brand {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 0 20px 24px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 8px;
}

.sidebar-nav {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding: 0 10px;
  overflow-y: auto;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 9px 12px;
  border-radius: var(--radius);
  color: var(--text-2);
  text-decoration: none;
  font-size: 13.5px;
  font-weight: 500;
  transition: background var(--transition), color var(--transition);
  cursor: pointer;
  border: none;
  background: none;
  width: 100%;
  text-align: left;
}

.nav-item:hover {
  background: var(--bg-3);
  color: var(--text);
}

.nav-item.active {
  background: var(--red-glow);
  color: var(--red);
}

.nav-icon { font-size: 15px; width: 20px; }

.sidebar-footer {
  padding: 12px 10px 0;
  border-top: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.btn-logout {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 9px 12px;
  border-radius: var(--radius);
  color: var(--text-3);
  font-size: 13px;
  cursor: pointer;
  border: none;
  background: none;
  width: 100%;
  text-align: left;
  transition: color var(--transition);
}

.btn-logout:hover { color: var(--red); }

/* Main content */
.main-content {
  margin-left: var(--sidebar-w);
  flex: 1;
  padding: 32px 36px;
  max-width: calc(100vw - var(--sidebar-w));
}

/* ============================================
   PAGE HEADER
   ============================================ */
.page-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  margin-bottom: 32px;
  gap: 16px;
}

.page-title {
  font-family: var(--font-disp);
  font-size: 26px;
  font-weight: 800;
  letter-spacing: -0.5px;
}

.page-sub {
  color: var(--text-2);
  font-size: 13px;
  margin-top: 3px;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.user-avatar {
  width: 34px;
  height: 34px;
  border-radius: 50%;
  border: 2px solid var(--border);
  object-fit: cover;
}

/* ============================================
   BUTTONS
   ============================================ */
.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 9px 16px;
  background: var(--red);
  color: #fff;
  border: none;
  border-radius: var(--radius);
  font-family: var(--font-body);
  font-size: 13.5px;
  font-weight: 600;
  cursor: pointer;
  transition: background var(--transition);
  white-space: nowrap;
}

.btn-primary:hover { background: var(--red-dark); }
.btn-primary:disabled { opacity: 0.5; cursor: not-allowed; }

.btn-ghost {
  padding: 9px 16px;
  background: none;
  color: var(--text-2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  font-family: var(--font-body);
  font-size: 13.5px;
  cursor: pointer;
  transition: border-color var(--transition), color var(--transition);
}

.btn-ghost:hover { border-color: var(--text-3); color: var(--text); }

/* ============================================
   STATS GRID
   ============================================ */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  margin-bottom: 36px;
}

.stat-card {
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 20px 22px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  transition: border-color var(--transition);
}

.stat-card:hover { border-color: #3a4060; }

.stat-label {
  color: var(--text-2);
  font-size: 12px;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.stat-value {
  font-family: var(--font-disp);
  font-size: 28px;
  font-weight: 800;
  letter-spacing: -1px;
  line-height: 1;
}

/* ============================================
   SECTION
   ============================================ */
.section { margin-bottom: 40px; }

.section-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 18px;
}

.section-title {
  font-family: var(--font-disp);
  font-size: 17px;
  font-weight: 700;
}

.section-hint {
  color: var(--text-3);
  font-size: 12px;
}

/* ============================================
   CANAIS GRID
   ============================================ */
.canais-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 16px;
}

.canal-card {
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 20px;
  cursor: pointer;
  transition: border-color var(--transition), transform var(--transition);
  text-decoration: none;
  color: var(--text);
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.canal-card:hover {
  border-color: var(--red);
  transform: translateY(-2px);
}

.canal-card-header {
  display: flex;
  align-items: center;
  gap: 12px;
}

.canal-thumb {
  width: 46px;
  height: 46px;
  border-radius: 50%;
  object-fit: cover;
  border: 2px solid var(--border);
  flex-shrink: 0;
}

.canal-thumb-placeholder {
  width: 46px;
  height: 46px;
  border-radius: 50%;
  background: var(--bg-3);
  border: 2px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  flex-shrink: 0;
}

.canal-info { flex: 1; min-width: 0; }

.canal-name {
  font-weight: 600;
  font-size: 14px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.canal-handle {
  color: var(--text-3);
  font-size: 12px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.canal-badge {
  font-size: 10px;
  font-weight: 600;
  padding: 3px 7px;
  border-radius: 20px;
  background: var(--bg-3);
  color: var(--text-2);
  border: 1px solid var(--border);
  white-space: nowrap;
  flex-shrink: 0;
}

.canal-badge.pt { background: rgba(34,197,94,0.1); color: var(--green); border-color: rgba(34,197,94,0.2); }
.canal-badge.pl { background: rgba(234,179,8,0.1); color: var(--yellow); border-color: rgba(234,179,8,0.2); }
.canal-badge.fr { background: rgba(59,130,246,0.1); color: #60a5fa; border-color: rgba(59,130,246,0.2); }

.canal-stats {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 8px;
}

.canal-stat {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.canal-stat-val {
  font-family: var(--font-disp);
  font-size: 16px;
  font-weight: 700;
  letter-spacing: -0.5px;
}

.canal-stat-lbl {
  color: var(--text-3);
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.4px;
}

.canal-card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 12px;
  border-top: 1px solid var(--border);
}

.canal-update {
  color: var(--text-3);
  font-size: 11px;
}

.btn-canal-analyze {
  font-size: 12px;
  color: var(--red);
  font-weight: 600;
  text-decoration: none;
  opacity: 0.8;
  transition: opacity var(--transition);
}

.btn-canal-analyze:hover { opacity: 1; }

/* Loading / Empty states */
.loading-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
  padding: 60px 0;
  color: var(--text-2);
}

.spinner {
  width: 32px;
  height: 32px;
  border: 3px solid var(--border);
  border-top-color: var(--red);
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
}

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

.empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  padding: 60px 0;
  text-align: center;
}

.empty-icon { font-size: 40px; }

.empty-state h3 {
  font-family: var(--font-disp);
  font-size: 18px;
}

.empty-state p {
  color: var(--text-2);
  font-size: 13px;
}

/* ============================================
   MODAL
   ============================================ */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.7);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  backdrop-filter: blur(4px);
  padding: 20px;
}

.modal-box {
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 32px;
  width: 100%;
  max-width: 460px;
}

.modal-title {
  font-family: var(--font-disp);
  font-size: 20px;
  font-weight: 800;
  margin-bottom: 8px;
}

.modal-sub {
  color: var(--text-2);
  font-size: 13px;
  margin-bottom: 24px;
}

.modal-actions {
  display: flex;
  gap: 10px;
  justify-content: flex-end;
  margin-top: 24px;
}

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

.form-label {
  display: block;
  font-size: 12px;
  font-weight: 600;
  color: var(--text-2);
  margin-bottom: 6px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.form-input {
  width: 100%;
  padding: 10px 14px;
  background: var(--bg-3);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 14px;
  transition: border-color var(--transition);
  outline: none;
}

.form-input:focus { border-color: var(--red); }
.form-input::placeholder { color: var(--text-3); }

.form-error {
  color: var(--red);
  font-size: 12px;
  margin-top: 8px;
}

/* Canal preview no modal */
.canal-preview {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 16px;
  background: var(--bg-3);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  margin-top: 12px;
}

.preview-thumb {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  object-fit: cover;
}

.preview-name {
  font-weight: 600;
  font-size: 14px;
}

.preview-subs {
  color: var(--text-2);
  font-size: 12px;
  margin-top: 2px;
}

/* ============================================
   RESPONSIVE
   ============================================ */
@media (max-width: 900px) {
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .main-content { padding: 20px; }
}

@media (max-width: 640px) {
  .sidebar { display: none; }
  .main-content { margin-left: 0; max-width: 100vw; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .page-header { flex-direction: column; }
}