/* ═══════════════════════════════════════════════
   Israel Assessment — Master Stylesheet v2
   ═══════════════════════════════════════════════ */

@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@300;400;500;600;700;800;900&family=Space+Mono:wght@400;700&family=Playfair+Display:wght@700;900&display=swap');

:root {
  --font: 'Plus Jakarta Sans', sans-serif;
  --mono: 'Space Mono', monospace;
  --display: 'Playfair Display', serif;

  --bg:       #070b12;
  --surface:  #0d1421;
  --surface2: #111a2e;
  --surface3: #162036;
  --border:   rgba(255,255,255,0.06);
  --border2:  rgba(255,255,255,0.1);

  --text:  #f0f4ff;
  --text1: #f0f4ff;
  --text2: #7a8aaa;
  --text3: #4a5a7a;

  --accent:  #4f8ef7;
  --accent2: #6ea8fe;
  --accent3: #3b6fd6;
  --glow:    rgba(79,142,247,0.25);

  --green:  #22c55e;
  --red:    #ef4444;
  --yellow: #f59e0b;
  --purple: #a855f7;
  --pink:   #ec4899;
  --cyan:   #06b6d4;
  --orange: #f97316;

  --radius:    14px;
  --radius-sm: 8px;
  --radius-lg: 20px;
  --shadow:    0 8px 40px rgba(0,0,0,0.5);
  --shadow-lg: 0 20px 80px rgba(0,0,0,0.6);
}

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

html { font-size: 15px; scroll-behavior: smooth; }

body {
  font-family: var(--font);
  background: var(--bg-override, var(--bg));
  color: var(--text);
  line-height: 1.6;
  min-height: 100vh;
  overflow-x: hidden;
}

/* Global safety net: prevent any image, table, or pre block from forcing horizontal page scroll on phones */
img, svg, video, canvas { max-width: 100%; height: auto; }
table { max-width: 100%; }
pre, code { white-space: pre-wrap; word-break: break-word; max-width: 100%; }
input, select, textarea, button { max-width: 100%; box-sizing: border-box; }

/* ── Animated background ── */
.bg-grid {
  position: fixed; inset: 0; z-index: 0; pointer-events: none;
  background-image:
    linear-gradient(rgba(79,142,247,0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(79,142,247,0.04) 1px, transparent 1px);
  background-size: 48px 48px;
  animation: gridDrift 30s linear infinite;
}
@keyframes gridDrift { from { transform: translate(0,0); } to { transform: translate(48px,48px); } }

.bg-glow {
  position: fixed; inset: 0; z-index: 0; pointer-events: none;
  background: radial-gradient(ellipse 60% 40% at 50% -10%, rgba(79,142,247,0.12) 0%, transparent 70%),
              radial-gradient(ellipse 40% 30% at 90% 80%, rgba(168,85,247,0.07) 0%, transparent 60%);
}

/* ── SCROLLBAR ── */
::-webkit-scrollbar { width: 5px; height: 5px; }
::-webkit-scrollbar-track { background: var(--surface); }
::-webkit-scrollbar-thumb { background: var(--border2); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--accent3); }

/* ══════════════════════════════
   TYPOGRAPHY
══════════════════════════════ */
h1, h2, h3, h4 { font-weight: 700; line-height: 1.2; }
a { color: var(--accent2); text-decoration: none; transition: color 0.2s; }
a:hover { color: var(--text); }
small { font-size: 0.8em; color: var(--text2); }

/* ══════════════════════════════
   NAVBAR (auto-hide)
══════════════════════════════ */
.site-header {
  position: sticky; top: 0; z-index: 100;
  background: rgba(7,11,18,0.92);
  backdrop-filter: blur(20px) saturate(1.5);
  border-bottom: 1px solid var(--border);
  padding: 0 24px;
  height: 60px;
  display: flex; align-items: center; justify-content: space-between;
  transition: transform 0.3s ease, opacity 0.3s ease;
}
.site-header.nav-hidden {
  transform: translateY(-100%);
  opacity: 0;
  pointer-events: none;
}
.site-header.nav-peek { transform: translateY(0); opacity: 1; pointer-events: all; }

.logo { display: flex; align-items: center; gap: 10px; cursor: default; }
.logo-mark {
  width: 36px; height: 36px; border-radius: 10px;
  background: linear-gradient(135deg, var(--accent), var(--purple));
  display: flex; align-items: center; justify-content: center;
  font-weight: 900; font-size: 13px; color: #fff;
  box-shadow: 0 0 20px var(--glow);
  animation: logoGlow 3s ease-in-out infinite alternate;
}
@keyframes logoGlow {
  from { box-shadow: 0 0 20px var(--glow); }
  to { box-shadow: 0 0 35px rgba(79,142,247,0.5), 0 0 60px rgba(168,85,247,0.2); }
}
.logo-mark.small { width: 28px; height: 28px; font-size: 11px; border-radius: 8px; }
.logo-text { font-weight: 800; font-size: 15px; letter-spacing: -0.3px; }

.site-nav { display: flex; align-items: center; gap: 4px; }
.nav-item {
  position: relative; padding: 8px 14px; border-radius: 8px;
  font-size: 13px; font-weight: 600; color: var(--text2);
  cursor: pointer; transition: all 0.2s; border: none; background: none;
  font-family: var(--font);
}
.nav-item:hover, .nav-item.active { color: var(--text); background: var(--surface2); }
.nav-item.accent { color: var(--accent2); }
.nav-item.accent:hover { background: rgba(79,142,247,0.1); }
.nav-divider { width: 1px; height: 20px; background: var(--border2); margin: 0 6px; }

/* ── Hamburger menu button ── */
.hamburger-btn {
  display: flex; flex-direction: column; justify-content: center; align-items: center;
  gap: 5px; width: 38px; height: 38px; background: none; border: none;
  cursor: pointer; flex-shrink: 0; padding: 0; border-radius: 8px; transition: background 0.15s;
}
.hamburger-btn:hover { background: var(--surface2); }
.hamburger-btn span { display: block; width: 20px; height: 2px; background: var(--text1); border-radius: 2px; transition: all 0.2s; }

.header-title {
  flex: 1; font-size: 16px; font-weight: 800; color: var(--text1);
  padding-left: 6px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}

/* ── Slide-out navigation drawer ── */
.nav-drawer {
  position: fixed; top: 0; left: 0; bottom: 0; width: 270px; max-width: 82vw; z-index: 600;
  background: var(--surface2); border-right: 1px solid var(--border2);
  transform: translateX(-100%); transition: transform 0.28s cubic-bezier(0.34,1.2,0.64,1);
  display: flex; flex-direction: column; box-shadow: var(--shadow-lg);
}
.nav-drawer.open { transform: translateX(0); }
.nav-drawer-head { padding: 20px 18px; border-bottom: 1px solid var(--border); }
.nav-drawer-body { padding: 10px; display: flex; flex-direction: column; gap: 2px; overflow-y: auto; }
.nav-drawer-item {
  text-align: left; padding: 13px 14px; border-radius: 10px; border: none; background: none;
  font-size: 14px; font-weight: 600; color: var(--text2); cursor: pointer; font-family: var(--font);
  transition: all 0.15s; display: flex; align-items: center; gap: 10px;
}
.nav-drawer-item:hover { background: var(--surface3); color: var(--text); }
.nav-drawer-item.active { background: rgba(79,142,247,0.12); color: var(--accent2); }
.nav-drawer-backdrop {
  position: fixed; inset: 0; z-index: 590; background: rgba(0,0,0,0.5);
  opacity: 0; pointer-events: none; transition: opacity 0.28s;
}
.nav-drawer-backdrop.open { opacity: 1; pointer-events: all; }

/* Profile button */
.nav-profile {
  width: 36px; height: 36px; border-radius: 50%;
  background: linear-gradient(135deg, var(--accent3), var(--purple));
  border: 2px solid var(--border2); cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  font-weight: 800; font-size: 13px; color: #fff;
  transition: all 0.2s; overflow: hidden; flex-shrink: 0;
}
.nav-profile:hover { border-color: var(--accent); transform: scale(1.05); }
.nav-profile img { width: 100%; height: 100%; object-fit: cover; }

/* ── Profile Dropdown ── */
.profile-dropdown {
  position: fixed; top: 68px; right: 16px; z-index: 500;
  background: var(--surface2); border: 1px solid var(--border2);
  border-radius: var(--radius-lg); width: 280px;
  box-shadow: var(--shadow-lg);
  opacity: 0; transform: translateY(-12px) scale(0.96);
  pointer-events: none; transition: all 0.22s cubic-bezier(0.34,1.56,0.64,1);
}
.profile-dropdown.open { opacity: 1; transform: translateY(0) scale(1); pointer-events: all; }
.pd-head {
  padding: 20px; border-bottom: 1px solid var(--border);
  display: flex; gap: 12px; align-items: center;
}
.pd-avatar {
  width: 52px; height: 52px; border-radius: 50%;
  background: linear-gradient(135deg, var(--accent3), var(--purple));
  display: flex; align-items: center; justify-content: center;
  font-weight: 800; font-size: 18px; color: #fff;
  overflow: hidden; flex-shrink: 0; cursor: pointer;
  position: relative; border: 2px solid var(--border2);
  transition: border-color 0.2s;
}
.pd-avatar:hover { border-color: var(--accent); }
.pd-avatar-overlay {
  position: absolute; inset: 0; background: rgba(0,0,0,0.5);
  display: flex; align-items: center; justify-content: center;
  opacity: 0; transition: opacity 0.2s; font-size: 18px;
}
.pd-avatar:hover .pd-avatar-overlay { opacity: 1; }
.pd-avatar img { width: 100%; height: 100%; object-fit: cover; }
.pd-info { flex: 1; min-width: 0; }
.pd-name { font-weight: 700; font-size: 15px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.pd-email { font-size: 12px; color: var(--text2); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.pd-plan { font-size: 10px; font-weight: 700; letter-spacing: 0.8px; color: var(--accent2); text-transform: uppercase; margin-top: 2px; }
.pd-body { padding: 8px; }
.pd-item {
  padding: 10px 12px; border-radius: 8px; display: flex; gap: 10px; align-items: center;
  cursor: pointer; transition: background 0.15s; font-size: 13px; font-weight: 500;
  color: var(--text2);
}
.pd-item:hover { background: var(--surface3); color: var(--text); }
.pd-item .pi-icon { font-size: 16px; width: 20px; text-align: center; }
.pd-item.danger:hover { color: var(--red); }
.pd-sep { height: 1px; background: var(--border); margin: 4px 8px; }

/* ══════════════════════════════
   BUTTONS
══════════════════════════════ */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 10px 20px; border-radius: var(--radius-sm);
  font-family: var(--font); font-size: 13px; font-weight: 700;
  cursor: pointer; border: none; transition: all 0.2s; white-space: nowrap;
}
.btn-primary {
  background: linear-gradient(135deg, var(--accent), var(--accent3));
  color: #fff; box-shadow: 0 4px 20px var(--glow);
}
.btn-primary:hover { transform: translateY(-1px); box-shadow: 0 6px 28px var(--glow); filter: brightness(1.1); }
.btn-primary:active { transform: translateY(0); }
.btn-secondary {
  background: var(--surface2); color: var(--text); border: 1px solid var(--border2);
}
.btn-secondary:hover { background: var(--surface3); border-color: var(--accent); }
.btn-danger { background: rgba(239,68,68,0.12); color: var(--red); border: 1px solid rgba(239,68,68,0.25); }
.btn-danger:hover { background: rgba(239,68,68,0.2); }
.btn-green { background: rgba(34,197,94,0.12); color: var(--green); border: 1px solid rgba(34,197,94,0.25); }
.btn-green:hover { background: rgba(34,197,94,0.2); }
.btn-sm { padding: 6px 12px; font-size: 12px; border-radius: 6px; }
.btn-lg { padding: 14px 28px; font-size: 15px; border-radius: var(--radius); }
.btn-icon { padding: 8px; width: 36px; height: 36px; border-radius: 8px; }
.btn[disabled], .btn:disabled { opacity: 0.5; cursor: not-allowed; pointer-events: none; }

/* ══════════════════════════════
   FORMS
══════════════════════════════ */
.form-group { display: flex; flex-direction: column; gap: 6px; }
.form-group label { font-size: 12px; font-weight: 700; color: var(--text2); text-transform: uppercase; letter-spacing: 0.6px; }
.form-row { display: flex; gap: 16px; flex-wrap: wrap; }
.form-group.short { min-width: 100px; max-width: 160px; }

input[type=text], input[type=email], input[type=password], input[type=number],
select, textarea {
  background: var(--surface2);
  border: 1px solid var(--border2);
  color: var(--text);
  font-family: var(--font);
  font-size: 14px;
  padding: 10px 14px;
  border-radius: var(--radius-sm);
  outline: none;
  transition: border-color 0.2s, box-shadow 0.2s;
  width: 100%;
}
input:focus, select:focus, textarea:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(79,142,247,0.15);
}
input::placeholder, textarea::placeholder { color: var(--text3); }
select option { background: var(--surface); }
textarea { resize: vertical; }

/* ══════════════════════════════
   MODAL
══════════════════════════════ */
.modal-overlay {
  position: fixed; inset: 0; z-index: 800;
  background: rgba(0,0,0,0.75); backdrop-filter: blur(6px);
  display: flex; align-items: center; justify-content: center; padding: 20px;
  opacity: 0; pointer-events: none; transition: opacity 0.25s;
}
.modal-overlay.open { opacity: 1; pointer-events: all; }
.modal-box {
  background: var(--surface); border: 1px solid var(--border2);
  border-radius: var(--radius-lg); padding: 32px; max-width: 560px; width: 100%;
  max-height: 90vh; overflow-y: auto; position: relative;
  box-shadow: var(--shadow-lg);
  transform: scale(0.95) translateY(16px);
  transition: transform 0.25s cubic-bezier(0.34,1.56,0.64,1);
}
.modal-overlay.open .modal-box { transform: scale(1) translateY(0); }
.modal-title { font-size: 20px; font-weight: 800; margin-bottom: 20px; }
.modal-close {
  position: absolute; top: 16px; right: 16px;
  background: var(--surface2); border: 1px solid var(--border);
  color: var(--text2); width: 30px; height: 30px; border-radius: 7px;
  cursor: pointer; font-size: 14px; transition: all 0.15s;
  display: flex; align-items: center; justify-content: center;
}
.modal-close:hover { background: rgba(239,68,68,0.2); color: var(--red); }

/* ══════════════════════════════
   TOAST
══════════════════════════════ */
.toast {
  position: fixed; bottom: 28px; left: 50%; transform: translateX(-50%) translateY(20px);
  background: var(--surface2); border: 1px solid var(--border2);
  color: var(--text); padding: 12px 20px; border-radius: 30px;
  font-size: 13px; font-weight: 600; z-index: 9999;
  box-shadow: 0 8px 32px rgba(0,0,0,0.5);
  opacity: 0; transition: all 0.3s ease;
  max-width: 400px; text-align: center;
}
.toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }
.toast-success { border-color: rgba(34,197,94,0.4); color: var(--green); }
.toast-error   { border-color: rgba(239,68,68,0.4); color: var(--red); }
.toast-warn    { border-color: rgba(245,158,11,0.4); color: var(--yellow); }

/* ══════════════════════════════
   BADGE / CHIP
══════════════════════════════ */
.badge {
  display: inline-flex; align-items: center; justify-content: center;
  padding: 2px 8px; border-radius: 20px; font-size: 11px; font-weight: 700;
  background: var(--surface3); color: var(--text2);
}
.badge-accent  { background: rgba(79,142,247,0.12); color: var(--accent2); border: 1px solid rgba(79,142,247,0.2); }
.badge-green   { background: rgba(34,197,94,0.1); color: var(--green); border: 1px solid rgba(34,197,94,0.2); }
.badge-red     { background: rgba(239,68,68,0.1); color: var(--red); border: 1px solid rgba(239,68,68,0.2); }
.badge-yellow  { background: rgba(245,158,11,0.1); color: var(--yellow); border: 1px solid rgba(245,158,11,0.2); }
.badge-purple  { background: rgba(168,85,247,0.1); color: var(--purple); border: 1px solid rgba(168,85,247,0.2); }

/* ══════════════════════════════
   LOGIN / AUTH PAGE
══════════════════════════════ */
.auth-page {
  min-height: 100vh; display: flex; align-items: center; justify-content: center;
  padding: 40px 20px;
}
.auth-card {
  background: var(--surface); border: 1px solid var(--border2);
  border-radius: var(--radius-lg); padding: 40px 44px;
  width: 100%; max-width: 460px;
  box-shadow: var(--shadow-lg);
  animation: authFadeIn 0.5s ease;
  position: relative; z-index: 1;
}
@keyframes authFadeIn {
  from { opacity: 0; transform: translateY(24px) scale(0.97); }
  to   { opacity: 1; transform: translateY(0) scale(1); }
}
.auth-logo { display: flex; align-items: center; gap: 12px; margin-bottom: 32px; }
.auth-badge {
  font-size: 10px; font-weight: 800; letter-spacing: 1.5px; text-transform: uppercase;
  color: var(--accent2); background: rgba(79,142,247,0.1); border: 1px solid rgba(79,142,247,0.2);
  padding: 3px 10px; border-radius: 20px; margin-bottom: 8px; display: inline-block;
}
.auth-title { font-size: 28px; font-weight: 900; margin-bottom: 6px; }
.auth-title span { background: linear-gradient(135deg, var(--accent), var(--purple)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; }
.auth-sub { font-size: 14px; color: var(--text2); margin-bottom: 28px; }
.auth-tabs { display: flex; gap: 0; margin-bottom: 28px; border-bottom: 2px solid var(--border); }
.auth-tab {
  flex: 1; padding: 10px; text-align: center; cursor: pointer;
  font-size: 13px; font-weight: 700; color: var(--text2);
  border-bottom: 2px solid transparent; margin-bottom: -2px;
  transition: all 0.2s;
}
.auth-tab.active { color: var(--accent2); border-bottom-color: var(--accent2); }
.auth-form { display: flex; flex-direction: column; gap: 16px; }
.auth-form.hidden { display: none; }
.pass-input-wrap { position: relative; }
.pass-input-wrap input { padding-right: 44px; }
.pass-toggle {
  position: absolute; right: 12px; top: 50%; transform: translateY(-50%);
  background: none; border: none; color: var(--text2); cursor: pointer; font-size: 16px;
  padding: 4px; line-height: 1;
}
.auth-sep { text-align: center; color: var(--text3); font-size: 12px; position: relative; margin: 4px 0; }
.auth-sep::before, .auth-sep::after {
  content: ''; position: absolute; top: 50%; width: 40%;
  height: 1px; background: var(--border);
}
.auth-sep::before { left: 0; } .auth-sep::after { right: 0; }

/* ══════════════════════════════
   ADMIN LAYOUT
══════════════════════════════ */
.admin-page { display: flex; flex-direction: column; min-height: 100vh; }
.admin-layout { display: flex; flex: 1; position: relative; z-index: 1; }

.admin-sidebar {
  width: 260px; flex-shrink: 0;
  background: var(--surface);
  border-right: 1px solid var(--border);
  display: flex; flex-direction: column;
  height: calc(100vh - 60px); position: sticky; top: 60px; overflow-y: auto;
}
.sidebar-header {
  padding: 20px 18px 16px;
  display: flex; align-items: center; justify-content: space-between;
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
}
.sidebar-header h2 { font-size: 14px; font-weight: 800; text-transform: uppercase; letter-spacing: 0.5px; color: var(--text2); }
.sidebar-section { padding: 8px; flex: 1; overflow-y: auto; }
.test-item {
  padding: 12px 14px; border-radius: var(--radius-sm); cursor: pointer;
  transition: background 0.15s; border: 1px solid transparent;
  margin-bottom: 4px;
}
.test-item:hover { background: var(--surface2); }
.test-item.active { background: var(--surface2); border-color: rgba(79,142,247,0.25); }
.ti-title { font-size: 13px; font-weight: 600; display: block; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.ti-meta { font-size: 11px; color: var(--text2); font-family: var(--mono); margin-top: 2px; display: block; }

.admin-main { flex: 1; padding: 28px; overflow-y: auto; min-height: 0; }

.empty-state {
  text-align: center; padding: 80px 40px; color: var(--text2);
  animation: fadeIn 0.4s ease;
}
.empty-icon { font-size: 52px; margin-bottom: 16px; opacity: 0.5; }
.empty-state h3 { font-size: 20px; font-weight: 700; color: var(--text); margin-bottom: 8px; }
.empty-state p { font-size: 14px; margin-bottom: 24px; }
@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }

/* Editor */
.editor-top { margin-bottom: 28px; display: flex; flex-direction: column; gap: 16px; }
.editor-section-title {
  font-size: 16px; font-weight: 800; margin-bottom: 16px;
  display: flex; align-items: center; gap: 10px;
}
.q-btns { display: flex; gap: 6px; flex-wrap: wrap; }
.questions-header {
  display: flex; align-items: center; justify-content: space-between;
  margin-bottom: 16px; flex-wrap: wrap; gap: 10px;
}
.questions-header h3 { font-size: 16px; font-weight: 800; display: flex; align-items: center; gap: 8px; }
.questions-list { display: flex; flex-direction: column; gap: 16px; }
.q-card {
  background: var(--surface); border: 1px solid var(--border2);
  border-radius: var(--radius); padding: 20px; position: relative;
  transition: border-color 0.2s;
  animation: slideIn 0.25s ease;
}
.q-card:hover { border-color: rgba(79,142,247,0.25); }
@keyframes slideIn { from { opacity: 0; transform: translateY(-8px); } to { opacity: 1; transform: translateY(0); } }
.q-card-header {
  display: flex; align-items: center; gap: 10px; margin-bottom: 14px;
}
.q-type-badge {
  font-size: 10px; font-weight: 800; letter-spacing: 0.8px; text-transform: uppercase;
  padding: 3px 10px; border-radius: 20px;
  background: rgba(79,142,247,0.12); color: var(--accent2); border: 1px solid rgba(79,142,247,0.2);
}
.q-type-badge.tf   { background: rgba(34,197,94,0.1); color: var(--green); border-color: rgba(34,197,94,0.2); }
.q-type-badge.sa   { background: rgba(245,158,11,0.1); color: var(--yellow); border-color: rgba(245,158,11,0.2); }
.q-num { font-family: var(--mono); font-size: 12px; color: var(--text2); font-weight: 700; }
.q-del {
  margin-left: auto; background: none; border: none; color: var(--text3);
  cursor: pointer; font-size: 14px; padding: 4px 8px; border-radius: 5px;
  transition: all 0.15s;
}
.q-del:hover { background: rgba(239,68,68,0.15); color: var(--red); }

.options-grid { display: flex; flex-direction: column; gap: 8px; margin-bottom: 14px; }
.option-row {
  display: flex; align-items: center; gap: 10px;
  background: var(--surface2); border: 1px solid var(--border);
  padding: 8px 12px; border-radius: var(--radius-sm);
}
.opt-label {
  width: 24px; height: 24px; border-radius: 6px;
  background: var(--surface3); border: 1px solid var(--border2);
  display: flex; align-items: center; justify-content: center;
  font-size: 11px; font-weight: 800; color: var(--text2); flex-shrink: 0;
}
.option-row input[type=text] { padding: 6px 10px; font-size: 13px; flex: 1; }
.option-row input[type=radio] { width: 16px; height: 16px; accent-color: var(--accent); flex-shrink: 0; cursor: pointer; }
.tf-options { display: flex; gap: 16px; margin-bottom: 14px; }
.tf-opt { display: flex; align-items: center; gap: 8px; cursor: pointer; font-size: 14px; font-weight: 600; }
.tf-opt input { width: 16px; height: 16px; accent-color: var(--accent); }

/* Image in question */
.q-img-preview {
  width: 100%; max-height: 200px; object-fit: cover;
  border-radius: var(--radius-sm); border: 1px solid var(--border2); margin-bottom: 10px;
}
.img-upload-row { display: flex; gap: 8px; align-items: center; }
.img-upload-btn {
  display: inline-flex; align-items: center; gap: 6px; padding: 7px 14px;
  background: var(--surface2); border: 1px dashed var(--border2); border-radius: var(--radius-sm);
  cursor: pointer; font-size: 12px; font-weight: 600; color: var(--text2);
  transition: all 0.2s;
}
.img-upload-btn:hover { border-color: var(--accent); color: var(--accent2); }

/* Equation editor */
.eq-toolbar {
  display: flex; flex-wrap: wrap; gap: 4px; padding: 8px;
  background: var(--surface2); border: 1px solid var(--border);
  border-bottom: none; border-radius: var(--radius-sm) var(--radius-sm) 0 0;
}
.eq-btn {
  padding: 4px 8px; background: var(--surface3); border: 1px solid var(--border2);
  border-radius: 4px; color: var(--text); font-size: 12px; cursor: pointer;
  transition: all 0.15s; font-family: var(--mono);
}
.eq-btn:hover { background: rgba(79,142,247,0.15); border-color: var(--accent); }

/* Share link box */
.share-link-box {
  display: flex; gap: 8px; align-items: center;
  background: var(--surface2); border: 1px solid var(--border2);
  border-radius: var(--radius-sm); padding: 10px 14px;
}
.share-link-box input {
  flex: 1; background: none; border: none; font-family: var(--mono);
  font-size: 12px; color: var(--text2); outline: none; cursor: text;
}
.share-link-box .btn-copy {
  background: rgba(79,142,247,0.12); color: var(--accent2); border: 1px solid rgba(79,142,247,0.2);
  padding: 5px 12px; border-radius: 5px; font-size: 12px; font-weight: 700; cursor: pointer; transition: all 0.15s;
}
.share-link-box .btn-copy:hover { background: rgba(79,142,247,0.2); }

/* ══════════════════════════════
   STUDENT PORTAL (INDEX)
══════════════════════════════ */
.portal-page { display: flex; flex-direction: column; min-height: 100vh; }
.portal-main {
  flex: 1; display: flex; gap: 0; position: relative; z-index: 1;
}
.portal-left {
  flex: 1; padding: 48px 44px;
  max-width: 560px;
  display: flex; flex-direction: column; justify-content: center;
}
.portal-badge {
  font-size: 10px; font-weight: 800; letter-spacing: 2px; text-transform: uppercase;
  color: var(--accent2); background: rgba(79,142,247,0.1); border: 1px solid rgba(79,142,247,0.2);
  padding: 4px 12px; border-radius: 20px; display: inline-flex; align-items: center; gap: 6px; margin-bottom: 20px;
}
.portal-title {
  font-family: var(--display); font-size: 48px; font-weight: 900; line-height: 1.1;
  margin-bottom: 14px;
}
.portal-title .hl {
  background: linear-gradient(135deg, var(--accent), var(--purple), var(--pink));
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
}
.portal-sub { font-size: 15px; color: var(--text2); margin-bottom: 36px; line-height: 1.7; }
.portal-form { display: flex; flex-direction: column; gap: 16px; }
.portal-right {
  flex: 1; padding: 40px; display: flex; flex-direction: column; gap: 16px;
  align-items: center; justify-content: center;
}
.stat-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; width: 100%; max-width: 400px; }
.stat-card {
  background: var(--surface); border: 1px solid var(--border2);
  border-radius: var(--radius); padding: 24px 20px; text-align: center;
  transition: transform 0.2s, box-shadow 0.2s;
  animation: statPop 0.6s ease both;
}
.stat-card:nth-child(2) { animation-delay: 0.1s; }
.stat-card:nth-child(3) { animation-delay: 0.2s; }
.stat-card:nth-child(4) { animation-delay: 0.3s; }
@keyframes statPop { from { opacity: 0; transform: scale(0.9); } to { opacity: 1; transform: scale(1); } }
.stat-card:hover { transform: translateY(-4px); box-shadow: var(--shadow); }
.stat-card.accent { background: linear-gradient(135deg, rgba(79,142,247,0.1), rgba(168,85,247,0.1)); border-color: rgba(79,142,247,0.25); }
.stat-num { font-size: 36px; font-weight: 900; font-family: var(--mono); color: var(--accent2); }
.stat-card.accent .stat-num { background: linear-gradient(135deg, var(--accent), var(--purple)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; }
.stat-label { font-size: 12px; color: var(--text2); margin-top: 4px; font-weight: 600; }

/* ══════════════════════════════
   EXAM PAGE
══════════════════════════════ */
.exam-page { display: flex; flex-direction: column; min-height: 100vh; background: var(--bg); }
.exam-header {
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 24px; height: 60px; background: rgba(7,11,18,0.95);
  border-bottom: 1px solid var(--border); position: sticky; top: 0; z-index: 50;
}
.exam-info { display: flex; align-items: center; gap: 12px; }
.exam-title-text { font-size: 15px; font-weight: 800; }
.exam-student-text { font-size: 12px; color: var(--text2); font-family: var(--mono); }
.exam-controls { display: flex; align-items: center; gap: 16px; }
.progress-wrap { display: flex; flex-direction: column; align-items: flex-end; gap: 4px; }
.progress-bar { width: 120px; height: 4px; background: var(--surface3); border-radius: 2px; overflow: hidden; }
.progress-fill { height: 100%; background: linear-gradient(90deg, var(--accent), var(--purple)); border-radius: 2px; transition: width 0.4s ease; }
.progress-text { font-size: 11px; color: var(--text2); font-family: var(--mono); }
.timer {
  font-family: var(--mono); font-size: 20px; font-weight: 700; color: var(--accent2);
  background: var(--surface2); border: 1px solid var(--border2);
  padding: 6px 14px; border-radius: 8px; letter-spacing: 2px;
  transition: all 0.3s;
}
.timer.warning { color: var(--yellow); border-color: rgba(245,158,11,0.3); animation: timerPulse 1s ease infinite; }
.timer.danger  { color: var(--red); border-color: rgba(239,68,68,0.3); }
@keyframes timerPulse { 0%,100% { transform: scale(1); } 50% { transform: scale(1.05); } }
.btn-submit { background: linear-gradient(135deg, var(--green), #16a34a); color: #fff; }
.btn-submit:hover { filter: brightness(1.1); }

.exam-layout { display: flex; flex: 1; position: relative; z-index: 1; }
.q-nav {
  width: 80px; flex-shrink: 0; padding: 16px 8px;
  background: var(--surface); border-right: 1px solid var(--border);
  display: flex; flex-direction: column; gap: 6px; align-items: center;
  position: sticky; top: 60px; height: calc(100vh - 60px); overflow-y: auto;
}
.nav-label { font-size: 9px; font-weight: 800; color: var(--text3); text-transform: uppercase; letter-spacing: 1px; margin-bottom: 4px; }
.q-nav-btn {
  width: 44px; height: 44px; border-radius: 10px;
  background: var(--surface2); border: 1px solid var(--border);
  color: var(--text2); font-family: var(--mono); font-size: 12px; font-weight: 700;
  cursor: pointer; transition: all 0.15s;
}
.q-nav-btn:hover { border-color: var(--accent); color: var(--accent2); }
.q-nav-btn.answered { background: rgba(34,197,94,0.1); border-color: rgba(34,197,94,0.35); color: var(--green); }
.q-nav-btn.current { border-color: var(--accent); color: var(--accent2); box-shadow: 0 0 0 2px var(--glow); }

.exam-main { flex: 1; padding: 28px; max-width: 800px; }
.exam-nav-footer {
  display: flex; align-items: center; justify-content: space-between; gap: 12px;
  margin-top: 20px; padding-top: 16px; border-top: 1px solid var(--border);
}
.exam-nav-footer-count { font-size: 12px; font-weight: 700; color: var(--text2); font-family: var(--mono); }
.exam-nav-footer button:disabled { opacity: 0.4; cursor: not-allowed; }
@media (max-width: 480px) {
  .exam-nav-footer { flex-wrap: wrap; }
  .exam-nav-footer-count { order: 3; width: 100%; text-align: center; }
}
.instructions-box {
  background: rgba(79,142,247,0.06); border: 1px solid rgba(79,142,247,0.2);
  border-radius: var(--radius-sm); padding: 14px 18px; margin-bottom: 20px;
  font-size: 13px; color: var(--text2); line-height: 1.6;
}

.exam-q-card {
  background: var(--surface); border: 1px solid var(--border2);
  border-radius: var(--radius); padding: 24px; margin-bottom: 20px;
  animation: qSlide 0.3s ease;
}
@keyframes qSlide { from { opacity: 0; transform: translateX(-10px); } to { opacity: 1; transform: translateX(0); } }
.q-header-row { display: flex; align-items: center; gap: 10px; margin-bottom: 14px; }
.q-num-badge {
  font-family: var(--mono); font-size: 11px; font-weight: 800;
  background: var(--surface2); border: 1px solid var(--border2);
  padding: 3px 9px; border-radius: 5px; color: var(--text2);
}
.q-type-tag { font-size: 10px; text-transform: uppercase; font-weight: 700; letter-spacing: 0.5px; color: var(--text3); }
.q-pts { margin-left: auto; font-family: var(--mono); font-size: 12px; color: var(--accent2); font-weight: 700; }
.q-text-body { font-size: 15px; font-weight: 500; line-height: 1.65; margin-bottom: 18px; }
.q-img { max-width: 100%; max-height: 280px; border-radius: var(--radius-sm); margin-bottom: 14px; display: block; border: 1px solid var(--border); }
.options-wrap { display: flex; flex-direction: column; gap: 10px; }
.exam-option {
  display: flex; align-items: center; gap: 14px; padding: 13px 16px;
  background: var(--surface2); border: 1px solid var(--border);
  border-radius: var(--radius-sm); cursor: pointer; transition: all 0.18s;
  user-select: none;
}
.exam-option:hover { border-color: var(--accent); background: rgba(79,142,247,0.06); }
.exam-option.selected { background: rgba(79,142,247,0.1); border-color: var(--accent); }
.exam-option.selected .opt-circle { background: var(--accent); color: #fff; border-color: var(--accent); }
.opt-circle {
  width: 32px; height: 32px; border-radius: 8px; flex-shrink: 0;
  background: var(--surface3); border: 1px solid var(--border2);
  display: flex; align-items: center; justify-content: center;
  font-size: 12px; font-weight: 800; color: var(--text2); font-family: var(--mono);
  transition: all 0.18s;
}
.exam-short-input {
  background: var(--surface2); border: 2px solid var(--border2); color: var(--text);
  font-family: var(--font); font-size: 15px; padding: 16px 18px; border-radius: var(--radius-sm);
  outline: none; transition: border-color 0.2s, box-shadow 0.2s; width: 100%; resize: vertical;
  min-height: 140px; line-height: 1.7;
}
.exam-short-input:focus { border-color: var(--accent); box-shadow: 0 0 0 3px rgba(79,142,247,0.15); }

/* ── Matching questions ── */
.match-row {
  display: flex; align-items: center; gap: 12px; padding: 12px 14px;
  background: var(--surface2); border: 1px solid var(--border);
  border-radius: var(--radius-sm); margin-bottom: 10px;
}
.match-num {
  font-family: var(--mono); font-size: 12px; font-weight: 800; color: var(--text2);
  flex-shrink: 0; width: 22px;
}
.match-prompt { flex: 1; font-size: 14px; font-weight: 500; line-height: 1.5; }
.match-select {
  flex-shrink: 0; width: 45%; max-width: 220px; background: var(--surface); color: var(--text);
  border: 1px solid var(--border2); border-radius: 8px; padding: 9px 10px; font-size: 13px;
  font-family: var(--font); cursor: pointer;
}
.match-select:focus { border-color: var(--accent); outline: none; box-shadow: 0 0 0 3px rgba(79,142,247,0.15); }
.match-select.matched { border-color: var(--accent); }

/* ── Matching question editor (tests.html) ── */
.pair-row { display: flex; align-items: center; gap: 8px; margin-bottom: 8px; }
.pair-row .field-inp { flex: 1; margin: 0; }
.pair-arrow { color: var(--text2); font-size: 13px; flex-shrink: 0; }

/* ── Per-question feedback comments (tests.html) ── */
.q-feedback-details { margin-top: 14px; border-top: 1px dashed var(--border2); padding-top: 12px; }
.q-feedback-details summary {
  cursor: pointer; font-size: 12px; font-weight: 700; color: var(--text2);
  list-style: none; user-select: none;
}
.q-feedback-details summary::-webkit-details-marker { display: none; }
.q-feedback-details summary:hover { color: var(--accent2); }
.q-feedback-details[open] summary { color: var(--accent2); margin-bottom: 4px; }

/* ── Anti-Cheat Warning ── */
.cheat-warning {
  position: fixed; inset: 0; z-index: 10000;
  background: rgba(239,68,68,0.15); backdrop-filter: blur(10px);
  display: flex; align-items: center; justify-content: center;
  animation: cheatFlash 0.3s ease;
}
@keyframes cheatFlash { 0%,100% { background: rgba(239,68,68,0.15); } 50% { background: rgba(239,68,68,0.35); } }
.cheat-box {
  background: var(--surface); border: 2px solid var(--red); border-radius: var(--radius-lg);
  padding: 36px 40px; max-width: 420px; text-align: center;
  animation: cheatBounce 0.4s cubic-bezier(0.34,1.56,0.64,1);
}
@keyframes cheatBounce { from { transform: scale(0.8); } to { transform: scale(1); } }
.cheat-icon { font-size: 52px; margin-bottom: 14px; }
.cheat-title { font-size: 22px; font-weight: 900; color: var(--red); margin-bottom: 8px; }
.cheat-msg { font-size: 14px; color: var(--text2); margin-bottom: 20px; line-height: 1.6; }
.cheat-count { font-family: var(--mono); font-size: 13px; color: var(--yellow); margin-bottom: 16px; }

/* ══════════════════════════════
   RESULTS PAGE (ADMIN)
══════════════════════════════ */
.results-main { position: relative; z-index: 1; padding: 28px 32px; max-width: 1200px; margin: 0 auto; }
.results-toolbar { display: flex; gap: 10px; margin-bottom: 24px; flex-wrap: wrap; align-items: center; }
.results-toolbar input, .results-toolbar select { min-width: 0; width: auto; flex: 1; }
.results-summary { display: flex; gap: 16px; margin-bottom: 24px; flex-wrap: wrap; }
.sum-card {
  background: var(--surface); border: 1px solid var(--border2);
  border-radius: var(--radius); padding: 18px 24px; text-align: center; min-width: 120px;
}
.sum-card.pass { border-color: rgba(34,197,94,0.3); }
.sum-card.fail { border-color: rgba(239,68,68,0.3); }
.sum-n { font-size: 28px; font-weight: 800; font-family: var(--mono); color: var(--accent2); }
.sum-card.pass .sum-n { color: var(--green); }
.sum-card.fail .sum-n { color: var(--red); }
.sum-l { font-size: 11px; color: var(--text2); text-transform: uppercase; letter-spacing: 0.5px; margin-top: 4px; }
.results-table-wrap { overflow-x: auto; border-radius: var(--radius); }
.results-table {
  width: 100%; border-collapse: collapse; background: var(--surface);
  border-radius: var(--radius); overflow: hidden; border: 1px solid var(--border2);
}
.results-table thead { background: var(--surface2); }
.results-table th {
  padding: 12px 16px; text-align: left; font-size: 11px; font-weight: 700;
  color: var(--text2); text-transform: uppercase; letter-spacing: 0.5px; border-bottom: 1px solid var(--border2);
}
.results-table td {
  padding: 12px 16px; font-size: 13px; border-bottom: 1px solid var(--border); vertical-align: middle;
}
.results-table tbody tr:hover { background: var(--surface2); }
.results-table tbody tr:last-child td { border-bottom: none; }
.results-table code { font-family: var(--mono); font-size: 12px; color: var(--text2); }
.pct-badge {
  font-family: var(--mono); font-size: 12px; font-weight: 700; padding: 3px 8px; border-radius: 4px;
}
.pct-badge.pass { background: rgba(34,197,94,0.12); color: var(--green); }
.pct-badge.fail { background: rgba(239,68,68,0.1); color: var(--red); }

/* ══════════════════════════════
   RESULT (STUDENT)
══════════════════════════════ */
.result-page-main { position: relative; z-index: 1; padding: 32px; max-width: 860px; margin: 0 auto; }
.result-card {
  background: var(--surface); border: 1px solid var(--border2);
  border-radius: var(--radius-lg); overflow: hidden; box-shadow: var(--shadow-lg);
  margin-bottom: 28px; animation: fadeIn 0.4s ease;
}
.result-top { display: flex; gap: 32px; align-items: center; padding: 32px; }
.result-top.pass { border-bottom: 3px solid var(--green); }
.result-top.fail { border-bottom: 3px solid var(--red); }
.result-circle {
  width: 120px; height: 120px; border-radius: 50%;
  display: flex; flex-direction: column; align-items: center; justify-content: center; flex-shrink: 0;
}
.result-top.pass .result-circle { background: rgba(34,197,94,0.08); border: 3px solid var(--green); }
.result-top.fail .result-circle { background: rgba(239,68,68,0.08); border: 3px solid var(--red); }
.result-percent { font-size: 30px; font-weight: 900; font-family: var(--mono); }
.result-top.pass .result-percent { color: var(--green); }
.result-top.fail .result-percent { color: var(--red); }
.result-label { font-size: 11px; font-weight: 800; letter-spacing: 1.5px; margin-top: 2px; }
.result-top.pass .result-label { color: var(--green); }
.result-top.fail .result-label { color: var(--red); }
.result-meta { flex: 1; }
.result-meta h2 { font-size: 20px; font-weight: 800; margin-bottom: 4px; }
.result-stats { display: flex; gap: 20px; margin: 14px 0; }
.rs-val { font-size: 18px; font-weight: 800; font-family: var(--mono); color: var(--accent2); }
.rs-lbl { font-size: 11px; color: var(--text2); text-transform: uppercase; letter-spacing: 0.5px; }
.review-section { padding: 20px; display: flex; flex-direction: column; gap: 10px; }
.review-title { font-size: 16px; font-weight: 800; margin-bottom: 6px; }
.review-item {
  background: var(--surface2); border-radius: var(--radius-sm); padding: 14px 16px;
  border-left: 3px solid transparent;
}
.review-item.correct { border-left-color: var(--green); }
.review-item.incorrect { border-left-color: var(--red); }
.review-q-text { font-size: 13px; font-weight: 500; margin-bottom: 8px; line-height: 1.5; }
.review-ans { font-size: 12px; color: var(--text2); }
.review-ans.correct-ans { color: var(--green); }

/* ══════════════════════════════
   SETTINGS PAGE
══════════════════════════════ */
.settings-main { position: relative; z-index: 1; padding: 32px; max-width: 760px; margin: 0 auto; }
.settings-section {
  background: var(--surface); border: 1px solid var(--border2);
  border-radius: var(--radius); padding: 24px; margin-bottom: 24px;
}
.settings-section h3 { font-size: 16px; font-weight: 800; margin-bottom: 4px; }
.settings-section .sec-desc { font-size: 13px; color: var(--text2); margin-bottom: 20px; }
.setting-row {
  display: flex; align-items: center; justify-content: space-between; gap: 16px;
  padding: 14px 0; border-bottom: 1px solid var(--border);
}
.setting-row:last-child { border-bottom: none; padding-bottom: 0; }
.setting-info { flex: 1; }
.setting-info strong { font-size: 14px; font-weight: 600; display: block; margin-bottom: 2px; }
.setting-info span { font-size: 12px; color: var(--text2); }

/* Toggle switch */
.toggle { position: relative; width: 42px; height: 22px; flex-shrink: 0; }
.toggle input { opacity: 0; width: 0; height: 0; }
.toggle-slider {
  position: absolute; inset: 0; background: var(--surface3);
  border: 1px solid var(--border2); border-radius: 11px; cursor: pointer; transition: all 0.25s;
}
.toggle-slider::before {
  content: ''; position: absolute; width: 16px; height: 16px; border-radius: 50%;
  left: 2px; top: 50%; transform: translateY(-50%);
  background: var(--text2); transition: all 0.25s;
}
.toggle input:checked + .toggle-slider { background: var(--accent); border-color: var(--accent); }
.toggle input:checked + .toggle-slider::before { left: calc(100% - 18px); background: #fff; }

/* Color picker swatches */
.bg-swatches { display: flex; gap: 10px; flex-wrap: wrap; }
.bg-swatch {
  width: 40px; height: 40px; border-radius: 10px; cursor: pointer;
  border: 2px solid transparent; transition: all 0.2s;
}
.bg-swatch:hover, .bg-swatch.active { border-color: var(--accent); transform: scale(1.1); }
.bg-swatch.s-default { background: linear-gradient(135deg, #070b12, #0d1421); }
.bg-swatch.s-ocean   { background: linear-gradient(135deg, #0a1628, #0d2137); }
.bg-swatch.s-forest  { background: linear-gradient(135deg, #0a1a0f, #0d2b17); }
.bg-swatch.s-sunset  { background: linear-gradient(135deg, #1a0a0a, #2b0d1a); }
.bg-swatch.s-purple  { background: linear-gradient(135deg, #0e0a1a, #1a0d2b); }
.bg-swatch.s-dark    { background: linear-gradient(135deg, #050505, #111); }

/* ══════════════════════════════
   SUBSCRIPTION / UPGRADE
══════════════════════════════ */
.plans-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 20px; }
.plan-card {
  background: var(--surface); border: 1px solid var(--border2);
  border-radius: var(--radius-lg); padding: 28px 24px; text-align: center;
  transition: all 0.25s; position: relative; overflow: hidden;
}
.plan-card:hover { transform: translateY(-4px); box-shadow: var(--shadow); }
.plan-card.popular { border-color: var(--accent); }
.plan-card.popular::before {
  content: 'POPULAR'; position: absolute; top: 16px; right: -30px;
  background: var(--accent); color: #fff; font-size: 9px; font-weight: 800;
  letter-spacing: 1px; padding: 4px 40px; transform: rotate(45deg);
}
.plan-name { font-size: 11px; font-weight: 800; text-transform: uppercase; letter-spacing: 1px; color: var(--text2); margin-bottom: 8px; }
.plan-price { font-size: 32px; font-weight: 900; font-family: var(--mono); color: var(--accent2); }
.plan-price span { font-size: 13px; color: var(--text2); }
.plan-tests { font-size: 13px; color: var(--text2); margin: 12px 0 20px; }
.plan-tests strong { color: var(--text); }

/* ══════════════════════════════
   USER GUIDE
══════════════════════════════ */
.guide-main { position: relative; z-index: 1; padding: 32px; max-width: 800px; margin: 0 auto; }
.guide-section { margin-bottom: 40px; }
.guide-section h2 { font-size: 22px; font-weight: 800; margin-bottom: 16px; display: flex; align-items: center; gap: 10px; }
.guide-section h2 .icon { font-size: 28px; }
.guide-step {
  background: var(--surface); border: 1px solid var(--border2);
  border-radius: var(--radius); padding: 20px 24px; margin-bottom: 12px;
  display: flex; gap: 16px; align-items: flex-start;
}
.step-num {
  width: 32px; height: 32px; border-radius: 50%; flex-shrink: 0;
  background: linear-gradient(135deg, var(--accent), var(--accent3));
  display: flex; align-items: center; justify-content: center;
  font-size: 13px; font-weight: 800; color: #fff;
}
.step-content { flex: 1; }
.step-content strong { font-size: 14px; font-weight: 700; display: block; margin-bottom: 4px; }
.step-content p { font-size: 13px; color: var(--text2); line-height: 1.6; }

/* ══════════════════════════════
   UTIL
══════════════════════════════ */
.hidden { display: none !important; }
.flex { display: flex; }
.gap-2 { gap: 8px; }
.gap-4 { gap: 16px; }
.mt-2 { margin-top: 8px; }
.mt-4 { margin-top: 16px; }
.mb-4 { margin-bottom: 16px; }
.text-center { text-align: center; }
.text-muted { color: var(--text2); }
.text-sm { font-size: 13px; }
.text-xs { font-size: 12px; }
.w-full { width: 100%; }
.page-title { font-size: 26px; font-weight: 900; margin-bottom: 6px; }
.page-sub { font-size: 14px; color: var(--text2); margin-bottom: 28px; }

/* ── Equation display (MathJax) ── */
.mjx-chtml { color: var(--text) !important; }

/* ── Floating action animations ── */
@keyframes pulse { 0%,100% { box-shadow: 0 0 0 0 var(--glow); } 70% { box-shadow: 0 0 0 10px rgba(79,142,247,0); } }

/* ══════════════════════════════
   RESPONSIVE
══════════════════════════════ */
/* ═══════════════════════════════════════════════
   RESPONSIVE LAYOUT — fit everything on screen
   ═══════════════════════════════════════════════ */

/* Admin layout: sidebar + main never overflow */
.admin-layout {
  overflow: hidden;
  height: calc(100vh - 60px);
}
.admin-sidebar {
  flex-shrink: 0;
  display: flex;
  flex-direction: column;
}
.admin-main {
  flex: 1;
  min-width: 0;
  overflow-y: auto;
  height: calc(100vh - 60px);
}

/* Editor: never wider than viewport */
.editor-top { width: 100%; box-sizing: border-box; }
.editor-top input,
.editor-top textarea,
.editor-top select { max-width: 100%; box-sizing: border-box; }
.form-row { gap: 12px; }
.form-group.short { min-width: 90px; max-width: 140px; }

/* Share link box: never overflows */
.share-link-box { min-width: 0; }
.share-link-box input { min-width: 0; flex: 1; font-size: 12px; }

/* Questions list */
.questions-list { width: 100%; }
.q-card { width: 100%; box-sizing: border-box; }
.options-grid { gap: 8px; }

/* Results page */
.results-main { padding: 16px 20px; }
.results-summary { flex-wrap: wrap; gap: 8px; }
.sum-card { min-width: 80px; flex: 1; padding: 12px 10px; }
.sum-n { font-size: 22px; }
.results-toolbar { gap: 8px; }
.results-toolbar input { min-width: 120px; }
.results-table-wrap { overflow-x: auto; -webkit-overflow-scrolling: touch; }
.results-table { min-width: 600px; }
.results-table th, .results-table td { padding: 8px 10px; font-size: 12px; }

/* Upgrade page */
.plans-grid { gap: 12px; }
.plan-card { padding: 20px 16px; }

/* Exam page */
.exam-main { padding: 16px; max-width: 100%; }

@media (max-width: 768px) {
  .site-header { padding: 0 12px; }
  .header-logo span { display: none; }
  .nav-links { gap: 4px; }
  .nav-link { padding: 6px 8px; font-size: 12px; }

  /* Admin: sidebar hidden by default on mobile */
  .admin-sidebar { width: 240px !important; position: fixed; left: 0; top: 60px;
    height: calc(100vh - 60px); z-index: 100; box-shadow: 4px 0 20px rgba(0,0,0,0.4); }
  .admin-sidebar.collapsed { transform: translateX(-100%); opacity: 1 !important;
    width: 240px !important; transition: transform 0.25s ease; }
  .admin-main { padding: 12px; margin-left: 0 !important; width: 100%; }
  #sidebarToggle { left: 12px; }
  #sidebarToggle.open { left: 252px; }

  /* Editor */
  .form-row { flex-direction: column; }
  .form-group.short { max-width: 100%; }
  .editor-top > div[style*="background"] { padding: 12px; }
  .q-btns { flex-wrap: wrap; gap: 6px; }
  .q-btns .btn { font-size: 11px; padding: 6px 10px; }

  /* Results */
  .results-main { padding: 12px; }
  .sum-card { min-width: 70px; padding: 10px 8px; }
  .sum-n { font-size: 18px; }
  .sum-l { font-size: 10px; }
  .results-toolbar { flex-direction: column; }
  .results-toolbar input,
  .results-toolbar select { width: 100%; }

  /* Upgrade */
  .plans-grid { grid-template-columns: 1fr !important; }

  /* Modal */
  .modal-box { margin: 12px; max-height: calc(100vh - 24px); }

  /* Exam */
  .exam-sidebar { display: none; }
  .exam-main { padding: 12px; }
}

@media (max-width: 480px) {
  .header-logo { font-size: 14px; }
  .admin-main { padding: 10px; }
  .results-summary { gap: 6px; }
  .sum-card { min-width: 60px; }
  .q-card { padding: 14px; }
  .results-table th:nth-child(3),
  .results-table td:nth-child(3),
  .results-table th:nth-child(8),
  .results-table td:nth-child(8) { display: none; }
}

/* ── Mobile exam header fix — ensure Submit button always visible ── */
@media (max-width: 600px) {
  .exam-header {
    height: auto; padding: 8px 12px; flex-wrap: wrap; gap: 8px;
  }
  .exam-controls {
    width: 100%; justify-content: space-between; gap: 8px; flex-wrap: wrap;
  }
  .progress-wrap { display: none; }
  .timer { font-size: 15px; padding: 4px 10px; }
  .btn-submit {
    padding: 8px 18px; font-size: 13px;
    background: linear-gradient(135deg, var(--green), #16a34a) !important;
    display: block !important; visibility: visible !important;
    opacity: 1 !important; pointer-events: auto !important;
  }
  .exam-info { flex: 1; min-width: 0; }
  .exam-title-text { font-size: 13px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
}

/* ══ MOBILE FIXES — v5 ══ */
@media (max-width: 600px) {

  /* Fix select dropdowns showing blank */
  select {
    color: var(--text1) !important;
    background: var(--surface2) !important;
    border: 1px solid var(--border2) !important;
    padding: 10px 12px !important;
    font-size: 14px !important;
    width: 100% !important;
    appearance: auto !important;
    -webkit-appearance: auto !important;
  }
  select option { color: var(--text1); background: var(--surface2); }

  /* Results toolbar — stack vertically with proper spacing */
  .results-toolbar {
    flex-direction: column !important;
    gap: 10px !important;
  }
  .results-toolbar input,
  .results-toolbar select {
    width: 100% !important;
    min-width: unset !important;
    box-sizing: border-box !important;
  }

  /* Admin form — fix schedule inputs */
  .form-row { flex-direction: column !important; }
  .form-group { width: 100% !important; }
  input[type="datetime-local"] {
    width: 100% !important;
    color: var(--text1) !important;
    background: var(--surface2) !important;
    border: 1px solid var(--border2) !important;
    padding: 10px 12px !important;
    font-size: 14px !important;
    border-radius: var(--radius-sm) !important;
  }

  /* Nav bar — prevent overflow */
  .site-header { overflow-x: auto; }
  .nav-links { gap: 4px !important; }
  .nav-links a { font-size: 12px !important; padding: 6px 8px !important; }

  /* Summary cards — equal width */
  .results-summary { display: grid !important; grid-template-columns: 1fr 1fr 1fr !important; gap: 8px !important; }
  .sum-card { min-width: unset !important; width: 100% !important; }

  /* Admin layout — full width on mobile */
  .admin-layout { flex-direction: column !important; }
  .admin-sidebar { width: 100% !important; max-width: unset !important; border-right: none !important; border-bottom: 1px solid var(--border) !important; max-height: 200px !important; overflow-y: auto !important; }
  .admin-main { width: 100% !important; }

  /* Fix empty space at bottom */
  body { min-height: 100vh !important; }
}

/* ══════════════════════════════════════════════
   MOBILE FIT — v6 (whole-app pass)
══════════════════════════════════════════════ */
html, body { overflow-x: hidden; width: 100%; }

/* Landing page (index.html) — stack the two columns instead of squeezing
   them side by side, which was unusable on phone-width screens */
@media (max-width: 900px) {
  .portal-main { flex-direction: column; }
  .portal-left, .portal-right { max-width: 100%; flex: none; }
}
@media (max-width: 600px) {
  .portal-left, .portal-right { padding: 32px 20px; }
  .portal-title { font-size: 34px; }
  .portal-sub { margin-bottom: 24px; }
  .stat-grid { max-width: 100%; }
}
@media (max-width: 400px) {
  .portal-left, .portal-right { padding: 24px 14px; }
  .portal-title { font-size: 28px; }
}

/* Sign-in / register card — a little tighter on very small phones */
@media (max-width: 420px) {
  .auth-page { padding: 20px 12px; }
  .auth-card { padding: 28px 20px; }
  .auth-title { font-size: 24px; }
}

/* Settings / generic content pages — reduce side padding on phones */
@media (max-width: 600px) {
  .settings-main { padding: 16px; }
  .settings-section { padding: 16px; }
}

/* Matching-question editor (tests.html) — stack Left/Right inputs instead
   of squeezing two text fields + arrow + delete button into one row */
@media (max-width: 560px) {
  .pair-row { flex-wrap: wrap; }
  .pair-row .field-inp { flex: 1 1 100%; min-width: 0; }
  .pair-arrow { flex: 0 0 100%; text-align: center; margin: -2px 0; }
}

/* Matching-question player (exam.html) — stack prompt above its dropdown
   on narrow screens instead of squeezing them into one row */
@media (max-width: 480px) {
  .match-row { flex-wrap: wrap; }
  .match-prompt { flex: 1 1 100%; }
  .match-select { flex: 1 1 100%; width: 100%; max-width: 100%; }
}

/* Hamburger drawer — never exceed viewport width on very small phones */
@media (max-width: 340px) {
  .nav-drawer { width: 88vw; }
}

/* Guide / notes / lessons quick-link badge rows already wrap; just tighten
   the tap targets a little so more fit per row on narrow phones */
@media (max-width: 480px) {
  .badge { font-size: 11px !important; padding: 6px 10px !important; }
}