/* Shared tablet + mobile responsiveness for student / admin / donor portals */

.portal-footer-bar {
  margin-left: var(--sidebar-w, 268px);
}

.portal-footer-bar .site-footer {
  width: 100%;
}

@media (max-width: 1100px) {
  .portal-footer-bar {
    margin-left: 0;
  }
}

/* ---- Mobile menu button (hidden on desktop) ---- */
.mobile-menu-btn {
  display: none !important;
}

.nav-backdrop {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 90;
  border: none;
  padding: 0;
  margin: 0;
  background: rgba(8, 30, 22, 0.45);
  backdrop-filter: blur(2px);
  cursor: pointer;
}

/* ---- Tablet (≤1100px): collapse sidebar into drawer ---- */
@media (max-width: 1100px) {
  .mobile-menu-btn {
    display: inline-flex !important;
  }

  body.student-app .sidebar,
  body.admin-app .sidebar,
  body.donor-app .sidebar {
    transform: translateX(-105%);
    transition: transform 0.28s ease;
    box-shadow: none;
    width: min(280px, 86vw);
  }

  body.student-app.nav-open .sidebar,
  body.admin-app.nav-open .sidebar,
  body.donor-app.nav-open .sidebar {
    transform: translateX(0);
    box-shadow: 12px 0 40px rgba(0, 0, 0, 0.28);
  }

  body.student-app .main-wrap,
  body.admin-app .main-wrap,
  body.donor-app .main-wrap {
    margin-left: 0 !important;
    width: 100%;
    max-width: 100vw;
  }

  body.nav-open {
    overflow: hidden;
  }

  body.nav-open .nav-backdrop {
    display: block;
  }

  .topbar {
    padding: 0.85rem 1rem !important;
    gap: 0.65rem;
    flex-wrap: nowrap;
    align-items: center;
  }

  .mobile-menu-btn {
    flex-shrink: 0;
  }

  .topbar-left {
    flex: 1;
    min-width: 0;
  }

  .topbar-title {
    font-size: 1.15rem !important;
  }

  .topbar-date,
  .topbar-date-pill {
    font-size: 0.78rem !important;
    padding: 0.35rem 0.65rem !important;
  }

  .topbar-controls {
    margin-left: auto;
  }

  .topbar-user-name {
    max-width: 72px;
  }

  .page-content,
  .student-design {
    padding-left: 1rem !important;
    padding-right: 1rem !important;
  }
}

/* ---- Mobile (≤768px) ---- */
@media (max-width: 768px) {
  .topbar-user-name {
    display: none;
  }

  .topbar-date span:not(.topbar-date-icon),
  .topbar-date-pill {
    max-width: 9.5rem;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
  }

  .topbar-controls {
    gap: 0.3rem;
    padding: 0.25rem;
  }

  .admin-app .topbar .icon-btn,
  .student-app .topbar .icon-btn,
  .donor-app .topbar .icon-btn {
    width: 36px;
    height: 36px;
    border-radius: 10px;
    font-size: 0.95rem;
  }

  .topbar-avatar,
  .topbar-avatar-fallback {
    width: 32px !important;
    height: 32px !important;
    max-width: 32px !important;
    max-height: 32px !important;
  }

  .student-page-title {
    font-size: 1.25rem !important;
  }

  .student-page-sub {
    font-size: 0.88rem !important;
  }

  .sd-table {
    font-size: 0.82rem;
  }

  .sd-btn {
    padding: 0.45rem 0.7rem;
    font-size: 0.78rem;
  }

  .gno-opening {
    flex-direction: column !important;
    align-items: stretch !important;
  }

  .gno-enroll {
    width: 100%;
    text-align: center;
  }

  .site-footer {
    padding: 0.75rem 1rem;
  }

  .site-footer p {
    font-size: 0.7rem;
    line-height: 1.45;
  }
}

/* ---- Small phones (≤520px) ---- */
@media (max-width: 520px) {
  .topbar-date,
  .topbar-date-pill {
    display: none !important;
  }

  .sd-welcome-row,
  .sd-modules,
  .sd-suggestions,
  .gn-summary,
  .gno-grid,
  .gi-grid,
  .act-grid,
  .ss-stats,
  .ss-bottom,
  .cert-grid,
  .resource-grid {
    grid-template-columns: 1fr !important;
  }

  .gi-mensa-grid {
    grid-template-columns: 1fr !important;
  }

  .act-panel .sd-table th:nth-child(n + 3),
  .act-panel .sd-table td:nth-child(n + 3) {
    /* keep progress visible; hide later cols already handled */
  }

  .sidebar-logo img,
  .sidebar-brand-logo {
    max-height: 72px !important;
  }

  .nav-item {
    font-size: 0.88rem !important;
    padding: 0.65rem 0.75rem !important;
  }
}

/* Login page extra mobile polish */
@media (max-width: 980px) {
  body.login-page {
    overflow-x: hidden;
    overflow-y: auto !important;
    height: auto !important;
    min-height: 100vh;
    padding-bottom: 3.5rem;
  }

  html.login-page-root {
    overflow: auto !important;
    height: auto !important;
  }

  .login-shell {
    height: auto !important;
    max-height: none !important;
    min-height: auto !important;
    overflow: visible !important;
  }

  .login-card {
    max-height: none !important;
    max-width: 100% !important;
  }

  .login-card-inner {
    max-height: none !important;
    overflow: visible !important;
  }

  .login-intro-logo img {
    height: 64px !important;
  }

  .btn-about-video {
    width: 100%;
    max-width: 280px;
    justify-content: center;
  }

  .login-form-area {
    width: 100%;
  }
}

@media (max-width: 520px) {
  .login-intro-headline {
    font-size: 1.65rem !important;
  }

  .login-intro-text {
    font-size: 0.92rem !important;
  }

  .role-btn {
    font-size: 0.72rem !important;
    padding: 0.5rem 0.2rem !important;
  }

  .otp-inputs {
    gap: 0.35rem !important;
  }

  .otp-inputs input,
  .otp-digit {
    width: 38px !important;
    height: 44px !important;
    font-size: 1.05rem !important;
  }

  .about-modal-dialog {
    border-radius: 12px !important;
  }
}