/* ========================================================
   ADMIN DASHBOARD STYLESHEET
   Clean, Modern, Intuitive Management Portal
   ======================================================== */

/* Fonts are loaded via <link> tags in admin.html */

button, input, select, textarea {
  font-family: inherit;
}

:root {
  --admin-primary: #3a1f5c;
  --admin-primary-dark: #22113a;
  --admin-gold: #e9b949;
  --admin-gold-light: #f3e6c8;
  --admin-bg: #f3f5f7;
  --admin-card: #ffffff;
  --admin-sidebar: #20103a;
  --admin-text: #1d2939;
  --admin-muted: #667085;
  --admin-border: #e4e7ec;
  --admin-danger: #d92d20;
  --admin-success: #039855;
  --admin-warning: #f79009;
  --admin-shadow: 0 4px 18px rgba(0, 0, 0, 0.05);
}

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

body {
  font-family: 'Montserrat', 'Noto Sans Bengali', sans-serif;
  background-color: var(--admin-bg);
  color: var(--admin-text);
  line-height: 1.5;
  min-height: 100vh;
}

/* ================= LOGIN SCREEN ================= */
.login-wrapper {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: radial-gradient(circle at top right, #4a2a73, #160a28);
  padding: 20px;
}

.login-card {
  background: #ffffff;
  width: 100%;
  max-width: 440px;
  border-radius: 16px;
  padding: 40px;
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.35);
  border-top: 5px solid var(--admin-gold);
  text-align: center;
}

.login-logo {
  width: 70px;
  height: 70px;
  background: var(--admin-primary);
  color: var(--admin-gold);
  border-radius: 50%;
  margin: 0 auto 16px auto;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  border: 2px solid var(--admin-gold);
}

.login-card h2 {
  font-family: inherit;
  font-size: 1.6rem;
  color: var(--admin-primary);
  margin-bottom: 6px;
}

.login-card p {
  color: var(--admin-muted);
  font-size: 0.9rem;
  margin-bottom: 28px;
}

.login-form .form-group {
  text-align: left;
  margin-bottom: 20px;
}

.login-form label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 6px;
  color: var(--admin-text);
}

.login-form input {
  width: 100%;
  padding: 12px 14px;
  border: 1px solid var(--admin-border);
  border-radius: 8px;
  font-size: 1rem;
  outline: none;
  transition: all 0.2s;
}

.login-form input:focus {
  border-color: var(--admin-primary);
  box-shadow: 0 0 0 3px rgba(58, 31, 92, 0.15);
}

/* Password input with show/hide toggle */
.password-field {
  position: relative;
}

.password-field input {
  padding-right: 48px;
}

.password-toggle {
  position: absolute;
  top: 50%;
  right: 6px;
  transform: translateY(-50%);
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: transparent;
  border: none;
  border-radius: 6px;
  color: var(--admin-muted);
  font-size: 1rem;
  cursor: pointer;
  transition: all 0.2s;
}

.password-toggle:hover {
  color: var(--admin-primary);
  background: rgba(58, 31, 92, 0.08);
}

.password-toggle:focus-visible {
  outline: 2px solid var(--admin-primary);
  outline-offset: 1px;
}

/* Hide the browser's built-in reveal button (Edge) so there aren't two */
.password-field input::-ms-reveal,
.password-field input::-ms-clear {
  display: none;
}

.login-btn {
  width: 100%;
  padding: 13px;
  background: var(--admin-primary);
  color: #fff;
  border: none;
  border-radius: 8px;
  font-size: 1rem;
  font-weight: 700;
  cursor: pointer;
  transition: all 0.2s;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
}

.login-btn:hover {
  background: #5a3488;
}

/* ================= ADMIN LAYOUT ================= */
.admin-layout {
  display: flex;
  min-height: 100vh;
}

/* Sidebar */
.admin-sidebar {
  width: 270px;
  background: var(--admin-sidebar);
  color: #d0c5df;
  display: flex;
  flex-direction: column;
  position: fixed;
  top: 0;
  bottom: 0;
  left: 0;
  z-index: 100;
  box-shadow: 2px 0 10px rgba(0, 0, 0, 0.1);
  overflow-y: auto;
}

.sidebar-brand {
  padding: 24px 20px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  display: flex;
  align-items: center;
  gap: 12px;
}

.sidebar-brand-icon {
  width: 42px;
  height: 42px;
  background: var(--admin-primary);
  border: 1px solid var(--admin-gold);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--admin-gold);
  font-size: 1.2rem;
}

.sidebar-brand-text h3 {
  font-family: inherit;
  font-size: 1.05rem;
  color: #fff;
}

.sidebar-brand-text span {
  font-size: 0.72rem;
  color: var(--admin-gold);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.sidebar-menu {
  list-style: none;
  padding: 18px 12px;
  flex-grow: 1;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.sidebar-menu-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 11px 16px;
  color: #c2b5d3;
  text-decoration: none;
  font-size: 0.92rem;
  font-weight: 600;
  border-radius: 8px;
  cursor: pointer;
  transition: all 0.2s;
}

.sidebar-menu-item:hover {
  background: rgba(255, 255, 255, 0.06);
  color: #ffffff;
}

.sidebar-menu-item.active {
  background: var(--admin-primary);
  color: #ffffff;
  border-left: 3px solid var(--admin-gold);
}

.sidebar-footer {
  padding: 16px 20px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.visit-site-btn, .logout-btn {
  width: 100%;
  padding: 9px 12px;
  border-radius: 6px;
  font-size: 0.85rem;
  font-weight: 600;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  text-decoration: none;
  cursor: pointer;
  border: none;
}

.visit-site-btn {
  background: rgba(233, 185, 73, 0.15);
  color: var(--admin-gold);
  border: 1px solid rgba(233, 185, 73, 0.4);
}

.logout-btn {
  background: rgba(217, 45, 32, 0.15);
  color: #ff9b94;
  border: 1px solid rgba(217, 45, 32, 0.3);
}

.logout-btn:hover {
  background: var(--admin-danger);
  color: #fff;
}

/* Main Content Area */
.admin-main {
  margin-left: 270px;
  flex-grow: 1;
  padding: 30px;
  min-height: 100vh;
}

.admin-top-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 28px;
  background: #ffffff;
  padding: 18px 24px;
  border-radius: 12px;
  box-shadow: var(--admin-shadow);
  border: 1px solid var(--admin-border);
}

.admin-page-title h1 {
  font-size: 1.45rem;
  color: var(--admin-primary);
  font-weight: 700;
}

.admin-page-title p {
  font-size: 0.86rem;
  color: var(--admin-muted);
}

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

.btn-admin {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 9px 16px;
  font-size: 0.88rem;
  font-weight: 600;
  border-radius: 8px;
  cursor: pointer;
  border: none;
  transition: all 0.2s;
}

.btn-admin-primary {
  background: var(--admin-primary);
  color: #fff;
}

.btn-admin-primary:hover {
  background: #5a3488;
}

.btn-admin-gold {
  background: var(--admin-gold);
  color: #000;
}

.btn-admin-danger {
  background: var(--admin-danger);
  color: #fff;
}

.btn-admin-outline {
  background: transparent;
  border: 1px solid var(--admin-border);
  color: var(--admin-text);
}

.btn-admin-outline:hover {
  background: #faf8fc;
}

/* Tab Panels */
.admin-tab-content {
  display: none;
}

.admin-tab-content.active {
  display: block;
}

/* Admin Card Component */
.admin-card {
  background: var(--admin-card);
  border-radius: 12px;
  border: 1px solid var(--admin-border);
  box-shadow: var(--admin-shadow);
  padding: 24px;
  margin-bottom: 26px;
}

.admin-card-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 1px solid var(--admin-border);
  padding-bottom: 14px;
  margin-bottom: 20px;
}

.admin-card-header h3 {
  font-size: 1.15rem;
  color: var(--admin-primary);
  display: flex;
  align-items: center;
  gap: 8px;
}

/* Form Styles */
.admin-form-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 18px;
}

.form-full {
  grid-column: 1 / -1;
}

.admin-form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-bottom: 16px;
}

.admin-form-group label {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--admin-text);
}

.admin-form-input, .admin-form-select, .admin-form-textarea {
  padding: 10px 14px;
  border: 1px solid var(--admin-border);
  border-radius: 8px;
  font-family: inherit;
  font-size: 0.92rem;
  outline: none;
  background: #ffffff;
}

.admin-form-input:focus, .admin-form-select:focus, .admin-form-textarea:focus {
  border-color: var(--admin-primary);
  box-shadow: 0 0 0 3px rgba(58, 31, 92, 0.1);
}

/* Image Upload Preview Box */
.image-upload-box {
  border: 2px dashed var(--admin-border);
  border-radius: 10px;
  padding: 20px;
  text-align: center;
  background: #fafbfc;
  cursor: pointer;
  transition: all 0.2s;
  position: relative;
}

.image-upload-box:hover {
  border-color: var(--admin-gold);
  background: #fffdf7;
}

.preview-thumbnail {
  max-width: 140px;
  max-height: 100px;
  object-fit: cover;
  border-radius: 6px;
  margin: 10px auto;
  border: 1px solid var(--admin-border);
}

/* Grid of Slider Items */
.slider-admin-list {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 20px;
}

.slide-admin-card {
  border: 1px solid var(--admin-border);
  border-radius: 10px;
  overflow: hidden;
  background: #ffffff;
  display: flex;
  flex-direction: column;
}

.slide-admin-thumb {
  height: 150px;
  position: relative;
  background: #eee;
}

.slide-admin-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.slide-admin-info {
  padding: 16px;
  flex-grow: 1;
}

.slide-admin-info h4 {
  font-size: 1rem;
  margin-bottom: 4px;
}

.slide-admin-info p {
  font-size: 0.85rem;
  color: var(--admin-muted);
}

.slide-admin-actions {
  display: flex;
  justify-content: flex-end;
  gap: 8px;
  padding: 12px 16px;
  border-top: 1px solid var(--admin-border);
  background: #fafafa;
}

/* Gallery Admin Tabs */
.inst-gallery-admin-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 20px;
}

.inst-tab-btn {
  background: #ffffff;
  border: 1px solid var(--admin-border);
  padding: 8px 14px;
  border-radius: 6px;
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
}

.inst-tab-btn.active {
  background: var(--admin-primary);
  color: #fff;
  border-color: var(--admin-primary);
}

/* Gallery Admin Grid */
.gallery-admin-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 16px;
}

.gallery-admin-item {
  border: 1px solid var(--admin-border);
  border-radius: 8px;
  overflow: hidden;
  position: relative;
}

.gallery-admin-item img {
  width: 100%;
  height: 130px;
  object-fit: cover;
}

.gallery-admin-meta {
  padding: 8px 10px;
  font-size: 0.8rem;
}

.gallery-admin-meta strong {
  display: block;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.gallery-del-btn {
  position: absolute;
  top: 6px;
  right: 6px;
  background: rgba(217, 45, 32, 0.9);
  color: #fff;
  border: none;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.8rem;
}

/* Committee Admin Table */
.committee-admin-table {
  width: 100%;
  border-collapse: collapse;
}

.committee-admin-table th, .committee-admin-table td {
  padding: 12px 14px;
  border-bottom: 1px solid var(--admin-border);
  text-align: left;
  font-size: 0.9rem;
}

.committee-admin-table th {
  background: #faf8fc;
  font-weight: 600;
  color: var(--admin-muted);
}

.member-avatar-cell {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  object-fit: cover;
  border: 1px solid var(--admin-gold);
}

/* Modal for Add / Edit */
.admin-modal {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.6);
  z-index: 1000;
  align-items: center;
  justify-content: center;
  padding: 20px;
}

.admin-modal.active {
  display: flex;
}

.admin-modal-card {
  background: #ffffff;
  max-width: 650px;
  width: 100%;
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
  max-height: 90vh;
  max-height: 90dvh;
  display: flex;
  flex-direction: column;
}

/* The <form> wraps body + footer: let it fill the card so only the body scrolls
   and the footer (Save / Cancel) always stays visible on short screens */
.admin-modal-card > form {
  display: flex;
  flex-direction: column;
  flex: 1;
  min-height: 0;
}

.admin-modal-header {
  flex-shrink: 0;
  padding: 18px 24px;
  border-bottom: 1px solid var(--admin-border);
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: #faf8fc;
}

.admin-modal-body {
  flex: 1;
  min-height: 0;
  padding: 24px;
  overflow-y: auto;
  overscroll-behavior: contain;
}

.admin-modal-footer {
  flex-shrink: 0;
  padding: 16px 24px;
  border-top: 1px solid var(--admin-border);
  display: flex;
  justify-content: flex-end;
  gap: 10px;
  background: #fafafa;
}

/* Toast */
.admin-toast {
  position: fixed;
  top: 24px;
  right: 24px;
  background: var(--admin-sidebar);
  color: #fff;
  border-left: 4px solid var(--admin-gold);
  padding: 14px 20px;
  border-radius: 8px;
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.25);
  z-index: 9999;
  transform: translateX(120%);
  transition: transform 0.3s ease;
  font-size: 0.92rem;
  display: flex;
  align-items: center;
  gap: 10px;
}

.admin-toast.show {
  transform: translateX(0);
}

@media (max-width: 900px) {
  .admin-sidebar {
    width: 70px;
  }
  .sidebar-brand-text, .sidebar-menu-item span, .sidebar-footer span {
    display: none;
  }
  .admin-main {
    margin-left: 70px;
    padding: 16px;
  }
  .admin-form-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 576px) {
  .admin-modal {
    padding: 10px;
  }
  .admin-modal-card {
    max-height: calc(100vh - 20px);
    max-height: calc(100dvh - 20px);
  }
  .admin-modal-header {
    padding: 14px 16px;
  }
  .admin-modal-body {
    padding: 16px;
  }
  .admin-modal-footer {
    padding: 12px 16px;
  }
  .admin-modal-footer .btn-admin {
    flex: 1;
    justify-content: center;
  }
}