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

/* ===== VARIABLES ===== */
:root {
  --bg-main: #242632;
  --bg-card: #2d3039;
  --bg-card-hover: rgba(45, 48, 57, 0.9);
  --text-primary: #FFFFFF;
  --text-secondary: #B0B3BE;
  --text-muted: #6B7084;
  --border: #3A3D4A;
  --border-hover: #4A4D5A;
  --accent: #10B981;
  --accent-hover: #34D399;
  --warning: #F59E0B;
  --error: #EF4444;
  --info: #3B82F6;
  --radius: 12px;
  --radius-sm: 8px;
  --shadow: 0 2px 12px rgba(0, 0, 0, 0.2);
  --transition: 0.2s ease;
}

/* ===== BASE ===== */
html, body {
  height: 100%;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  background-color: var(--bg-main);
  color: var(--text-primary);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

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

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

/* ===== HEADER ===== */
.header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--bg-card);
  border-bottom: 1px solid var(--border);
  backdrop-filter: blur(12px);
  background: rgba(45, 48, 57, 0.85);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  height: 64px;
}

/* ===== LOGO ===== */
.logo-wrap {
  display: flex;
  align-items: center;
  justify-content: center;
}

.logo {
  height: 40px;
  width: auto;
  object-fit: contain;
}

/* ===== NAV ===== */
.nav {
  display: flex;
  gap: 8px;
}

.nav-link {
  padding: 8px 16px;
  border-radius: var(--radius-sm);
  font-size: 14px;
  font-weight: 500;
  color: var(--text-secondary);
  transition: all var(--transition);
}

.nav-link:hover {
  color: var(--text-primary);
  background: rgba(255, 255, 255, 0.05);
}

.nav-link--active {
  color: var(--text-primary);
  background: rgba(255, 255, 255, 0.08);
}

/* ===== BURGER ===== */
.burger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 36px;
  height: 36px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 6px;
}

.burger span {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: all var(--transition);
}

.burger--open span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.burger--open span:nth-child(2) {
  opacity: 0;
}

.burger--open span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

/* ===== MOBILE MENU ===== */
.mobile-menu {
  display: none;
  position: fixed;
  top: 64px;
  left: 0;
  right: 0;
  z-index: 99;
  background: var(--bg-card);
  border-bottom: 1px solid var(--border);
  padding: 16px 24px;
  flex-direction: column;
  gap: 4px;
  transform: translateY(-100%);
  opacity: 0;
  transition: all 0.3s ease;
}

.mobile-menu--open {
  display: flex;
  transform: translateY(0);
  opacity: 1;
}

.mobile-menu__link {
  display: block;
  padding: 12px 16px;
  border-radius: var(--radius-sm);
  font-size: 16px;
  font-weight: 500;
  color: var(--text-secondary);
  transition: all var(--transition);
}

.mobile-menu__link:hover {
  color: var(--text-primary);
  background: rgba(255, 255, 255, 0.05);
}

.mobile-menu__link--active {
  color: var(--text-primary);
  background: rgba(255, 255, 255, 0.08);
}

/* ===== MAIN ===== */
.main {
  flex: 1;
  padding: 24px 0;
}

.container {
  max-width: 800px;
  margin: 0 auto;
  padding: 0 16px;
}

/* ===== SECTIONS ===== */
.section {
  margin-bottom: 20px;
}

/* ===== CARD ===== */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  box-shadow: var(--shadow);
  transition: border-color var(--transition);
}

.card:hover {
  border-color: var(--border-hover);
}

.card__title {
  font-size: 24px;
  font-weight: 700;
  margin-bottom: 8px;
  letter-spacing: -0.3px;
}

.card__subtitle {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 16px;
  color: var(--text-primary);
}

.card__text {
  font-size: 15px;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* ===== NOTIFICATIONS ===== */
.notifications {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.notification {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 12px;
  background: rgba(255, 255, 255, 0.03);
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  transition: all var(--transition);
}

.notification:hover {
  background: rgba(255, 255, 255, 0.06);
  border-color: var(--border-hover);
}

.notification__dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--text-muted);
  margin-top: 6px;
  flex-shrink: 0;
}

.notification__dot--new {
  background: var(--accent);
  box-shadow: 0 0 8px rgba(16, 185, 129, 0.4);
}

.notification__content {
  flex: 1;
}

.notification__text {
  font-size: 14px;
  color: var(--text-primary);
  margin-bottom: 2px;
}

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

/* ===== ACTIONS GRID ===== */
.actions-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
}

.action-btn {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  padding: 20px 12px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  cursor: pointer;
  transition: all var(--transition);
  color: var(--text-primary);
}

.action-btn:hover {
  background: rgba(255, 255, 255, 0.07);
  border-color: var(--border-hover);
  transform: translateY(-2px);
}

.action-btn:active {
  transform: translateY(0);
}

.action-btn__icon {
  font-size: 28px;
  line-height: 1;
}

.action-btn__label {
  font-size: 13px;
  font-weight: 500;
  color: var(--text-secondary);
}

/* ===== ACTIVITY LIST ===== */
.activity-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.activity-item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 12px;
  background: rgba(255, 255, 255, 0.03);
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
}

.activity-item__icon {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 13px;
  font-weight: 700;
  flex-shrink: 0;
  background: var(--text-muted);
  color: var(--bg-main);
}

.activity-item__icon--success {
  background: var(--accent);
}

.activity-item__icon--info {
  background: var(--info);
}

.activity-item__icon--warning {
  background: var(--warning);
}

.activity-item__content {
  flex: 1;
}

.activity-item__text {
  font-size: 14px;
  color: var(--text-primary);
  margin-bottom: 2px;
}

.activity-item__time {
  font-size: 12px;
  color: var(--text-muted);
}

/* ===== FOOTER ===== */
.footer {
  padding: 20px 16px;
  text-align: center;
  border-top: 1px solid var(--border);
  background: var(--bg-card);
}

.footer__text {
  font-size: 13px;
  color: var(--text-muted);
}

/* ===== RESPONSIVE ===== */
@media (max-width: 768px) {
  .nav {
    display: none;
  }

  .burger {
    display: flex;
  }

  .actions-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .card {
    padding: 18px;
  }

  .card__title {
    font-size: 20px;
  }
}

@media (max-width: 480px) {
  .header-inner {
    padding: 0 16px;
    height: 56px;
  }

  .main {
    padding: 16px 0;
  }

  .container {
    padding: 0 12px;
  }

  .card {
    padding: 16px;
    border-radius: var(--radius-sm);
  }

  .card__title {
    font-size: 18px;
  }

  .actions-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 8px;
  }

  .action-btn {
    padding: 16px 8px;
  }

  .action-btn__icon {
    font-size: 24px;
  }

  .action-btn__label {
    font-size: 12px;
  }

  .notification {
    padding: 10px;
  }

  .mobile-menu {
    top: 56px;
  }
}