/* ═══════════════════════════════════════════════════════════════════════════
   StructPro — Complete Mobile-First CSS Design System
   Palette: Navy #0D1B2A | Steel #1B6CA8 | Blue Accent #0050b4 | Surface #F4F6FB
   ═══════════════════════════════════════════════════════════════════════════ */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=Merriweather:wght@700;900&display=swap');

/* ── Reset & Custom Properties ─────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --navy:       #0D1B2A;
  --navy-dk:    #071220;
  --steel:      #1B6CA8;
  --steel-lt:   #2A85CC;
  --accent:      #0050b4;
  --accent-lt:   #2A85CC;
  --surface:    #F4F6FB;
  --white:      #FFFFFF;
  --text:       #1C2B3A;
  --text-muted: #5A6B7E;
  --border:     #D0D9E8;
  --success:    #1D7A4F;
  --danger:     #B91C1C;
  --warn-bg:    #FFFBEB;
  --r-sm:       6px;
  --r-md:       12px;
  --r-lg:       20px;
  --sh-sm:      0 1px 4px rgba(13,27,42,.08);
  --sh-md:      0 4px 20px rgba(13,27,42,.12);
  --sh-lg:      0 12px 40px rgba(13,27,42,.18);
  --font:       'Inter', system-ui, sans-serif;
  --font-disp:  'Merriweather', Georgia, serif;
  --ease:       200ms ease;
}

html  { font-size: 16px; scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body  { font-family: var(--font); color: var(--text); background: var(--surface);
        line-height: 1.6; min-height: 100vh; }

/* ── Typography ─────────────────────────────────────────────────────────── */
h1, h2, h3 { font-family: var(--font-disp); line-height: 1.25; }
h1 { font-size: clamp(1.6rem, 4vw, 2.8rem); font-weight: 900; }
h2 { font-size: clamp(1.25rem, 2.5vw, 1.8rem); font-weight: 700; }
h3 { font-size: 1.05rem; font-weight: 700; }
p  { margin-bottom: .6rem; }
a  { color: var(--steel); text-decoration: none; transition: color var(--ease); }
a:hover { color: var(--steel-lt); }
img { max-width: 100%; height: auto; display: block; }

/* ── Layout ─────────────────────────────────────────────────────────────── */
.container     { max-width: 1100px; margin: 0 auto; padding: 0 1.25rem; }
.container--sm { max-width: 520px; }
.flex          { display: flex; }
.flex-center   { display: flex; align-items: center; justify-content: center; }
.grid-2        { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.gap-1  { gap: .5rem; }  .gap-2 { gap: 1rem; }
.mt-1 { margin-top: .5rem; } .mt-2 { margin-top: 1rem; } .mt-3 { margin-top: 1.5rem; }
.mb-1 { margin-bottom: .5rem; } .mb-2 { margin-bottom: 1rem; }
.text-center  { text-align: center; }
.text-muted   { color: var(--text-muted); font-size: .88rem; }

/* ── Badges ─────────────────────────────────────────────────────────────── */
.badge {
  display: inline-block; padding: .2rem .6rem; border-radius: 99px;
  font-size: .68rem; font-weight: 700; letter-spacing: .05em; text-transform: uppercase;
}
.badge--accent  { background: #DBEAFE; color: #1B4F8A; }
.badge--green  { background: #D1FAE5; color: var(--success); }
.badge--steel  { background: #DBEAFE; color: var(--steel); }
.badge--red    { background: #FEE2E2; color: var(--danger); }

/* ── Navigation ─────────────────────────────────────────────────────────── */
.site-nav {
  background: linear-gradient(90deg, #0a1628, var(--navy));
  border-bottom: 1px solid rgba(27,108,168,.25);
  position: sticky; top: 0; z-index: 100;
  box-shadow: 0 2px 16px rgba(0,0,0,.3);
}
.site-nav__inner {
  max-width: 1100px; margin: 0 auto;
  padding: 0 1.25rem; height: 64px;
  display: flex; align-items: center; justify-content: space-between;
}
.site-nav__brand {
  font-family: var(--font-disp); font-size: 1.2rem; font-weight: 900;
  color: var(--white); display: flex; align-items: center; gap: .5rem;
  flex-shrink: 0;
}
.site-nav__brand .accent { color: var(--accent); }
.site-nav__links {
  display: flex; align-items: center; gap: 1rem; flex-wrap: nowrap;
}
.site-nav__links a {
  color: rgba(255,255,255,.7); font-size: .85rem; font-weight: 500;
  transition: color var(--ease); white-space: nowrap;
}
.site-nav__links a:hover { color: var(--white); }
.btn-nav {
  background: var(--accent); color: #ffffff !important;
  padding: .4rem 1rem; border-radius: var(--r-sm); font-weight: 700 !important;
  font-size: .82rem !important;
}
.btn-nav:hover { background: var(--accent-lt) !important; color: #ffffff !important; }

/* ── Buttons ─────────────────────────────────────────────────────────────── */
.btn {
  display: inline-flex; align-items: center; gap: .4rem;
  padding: .62rem 1.5rem; border-radius: var(--r-sm);
  font-family: var(--font); font-size: .92rem; font-weight: 600;
  cursor: pointer; border: 2px solid transparent;
  transition: all var(--ease); line-height: 1; text-decoration: none;
  white-space: nowrap;
}
.btn--primary  { background: var(--steel);  color: var(--white); }
.btn--primary:hover  { background: var(--steel-lt); color: var(--white); }
.btn--amber    { background: var(--accent);  color: var(--white); }
.btn--accent:hover    { background: var(--accent-lt); color: var(--white); }
.btn--outline  { background: transparent; border-color: var(--steel); color: var(--steel); }
.btn--outline:hover  { background: var(--steel); color: var(--white); }
.btn--danger   { background: var(--danger); color: var(--white); }
.btn--danger:hover   { background: #991b1b; }
.btn--sm       { padding: .38rem .85rem; font-size: .78rem; }
.btn--full     { width: 100%; justify-content: center; }

/* ── Cards ───────────────────────────────────────────────────────────────── */
.card {
  background: var(--white); border-radius: var(--r-md);
  box-shadow: var(--sh-sm); border: 1px solid var(--border); padding: 1.5rem;
}
.card--hover { transition: box-shadow var(--ease), transform var(--ease); }
.card--hover:hover { box-shadow: var(--sh-md); transform: translateY(-2px); }

/* ── Forms ───────────────────────────────────────────────────────────────── */
.form-group   { margin-bottom: 1.1rem; }
.form-label   { display: block; font-size: .82rem; font-weight: 600;
                color: var(--text); margin-bottom: .35rem; letter-spacing: .02em; }
.form-control {
  width: 100%; padding: .65rem .9rem;
  border: 1.5px solid var(--border); border-radius: var(--r-sm);
  font-family: var(--font); font-size: .92rem; color: var(--text);
  background: var(--white); transition: border-color var(--ease), box-shadow var(--ease);
  outline: none; -webkit-appearance: none; appearance: none;
}
.form-control:focus {
  border-color: var(--steel); box-shadow: 0 0 0 3px rgba(27,108,168,.15);
}
textarea.form-control  { resize: vertical; min-height: 110px; }
select.form-control    { cursor: pointer; background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%235A6B7E' stroke-width='2'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E"); background-repeat: no-repeat; background-position: right .75rem center; padding-right: 2.2rem; }
.form-hint    { font-size: .75rem; color: var(--text-muted); margin-top: .25rem; }
.form-error   { font-size: .78rem; color: var(--danger); margin-top: .3rem; font-weight: 500; }

/* ── Alerts ──────────────────────────────────────────────────────────────── */
.alert {
  padding: .85rem 1.1rem; border-radius: var(--r-sm);
  font-size: .875rem; font-weight: 500; margin-bottom: 1.1rem; border-left: 4px solid;
}
.alert--success { background: #ECFDF5; color: var(--success); border-color: var(--success); }
.alert--error   { background: #FEF2F2; color: var(--danger);  border-color: var(--danger);  }
.alert--info    { background: #EFF6FF; color: var(--steel);   border-color: var(--steel);   }
.alert--warn    { background: var(--warn-bg); color: #1B4F8A; border-color: var(--accent);   }

/* ── Tables ──────────────────────────────────────────────────────────────── */
.table-wrap   { overflow-x: auto; border-radius: var(--r-md); border: 1px solid var(--border); -webkit-overflow-scrolling: touch; }
table         { width: 100%; border-collapse: collapse; font-size: .875rem; min-width: 520px; }
thead tr      { background: linear-gradient(90deg, var(--navy), #1a3a5c); color: var(--white); }
thead th      { padding: .75rem 1rem; text-align: left; font-size: .72rem;
                font-weight: 700; letter-spacing: .07em; text-transform: uppercase; white-space: nowrap; }
tbody tr      { border-bottom: 1px solid var(--border); transition: background var(--ease); }
tbody tr:last-child { border-bottom: none; }
tbody tr:hover      { background: #F0F5FF; }
tbody td      { padding: .75rem 1rem; vertical-align: middle; }
.truncate     { max-width: 180px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

/* ── Site Footer ─────────────────────────────────────────────────────────── */
.site-footer {
  background: var(--navy); color: rgba(255,255,255,.5);
  text-align: center; padding: 1.5rem 1.25rem; font-size: .78rem; margin-top: 2rem;
}
.site-footer a { color: var(--accent); }

/* ════════════════════════════════════════════════════════════════════════════
   AUTH PAGES (login / register)
   ════════════════════════════════════════════════════════════════════════════ */
.auth-full {
  min-height: 100vh;
  display: grid;
  grid-template-columns: 1fr 480px;
}
.auth-img-panel { position: relative; overflow: hidden; background: #0a1628; }
.auth-img-panel img { width: 100%; height: 100%; object-fit: cover; opacity: .5; }
.auth-img-overlay {
  position: absolute; inset: 0;
  background: linear-gradient(135deg, rgba(10,22,40,.9) 0%, rgba(27,58,92,.65) 100%);
  display: flex; flex-direction: column; justify-content: center; padding: 3rem 2.5rem;
}
.auth-img-overlay::before {
  content: ''; position: absolute; inset: 0;
  background-image: linear-gradient(rgba(27,108,168,.07) 1px, transparent 1px),
                    linear-gradient(90deg, rgba(27,108,168,.07) 1px, transparent 1px);
  background-size: 35px 35px; pointer-events: none;
}
.auth-form-panel {
  background: var(--surface); display: flex; align-items: center;
  justify-content: center; padding: 2rem 1.5rem; overflow-y: auto;
}
.auth-form-inner { width: 100%; max-width: 380px; }
.auth-divider {
  text-align: center; color: var(--text-muted); font-size: .78rem;
  margin: 1rem 0; position: relative;
}
.auth-divider span {
  background: var(--surface); padding: 0 .6rem; position: relative; z-index: 1;
}
.auth-divider::before {
  content: ''; position: absolute; top: 50%; left: 0; right: 0;
  height: 1px; background: var(--border); z-index: 0;
}

/* ════════════════════════════════════════════════════════════════════════════
   DASHBOARD
   ════════════════════════════════════════════════════════════════════════════ */
/* DASHBOARD LAYOUT: fixed sidebar + margin-left main (no grid, no sticky) */
.dash-wrap    { display: block; }
.dash-sidebar {
  position: fixed; top: 64px; left: 0;
  width: 260px; height: calc(100vh - 64px);
  background: var(--white); border-right: 1px solid var(--border);
  display: flex; flex-direction: column; z-index: 50;
}
.dash-main    { margin-left: 260px; padding: 1.5rem 2rem;
                background: var(--surface); min-height: calc(100vh - 64px); }
.sidebar-section  { padding: .25rem 0; }
.sidebar-label    {
  font-size: .62rem; font-weight: 800; text-transform: uppercase;
  letter-spacing: .12em; color: var(--steel); padding: .6rem 1.1rem .2rem;
}
.sidebar-link {
  display: flex; align-items: center; gap: .55rem;
  padding: .6rem 1.1rem; font-size: .855rem; font-weight: 500;
  color: var(--text-muted); border-right: 3px solid transparent;
  transition: all var(--ease); text-decoration: none;
}
.sidebar-link:hover  { color: var(--steel); background: #F0F5FF; }
.sidebar-link.active { color: var(--white); background: var(--steel);
                       border-right-color: var(--accent); font-weight: 600; }
.sidebar-link .icon  { font-size: 1rem; width: 18px; text-align: center; flex-shrink: 0; }

/* Section entry */
.section-entry {
  background: var(--white); border: 1px solid var(--border);
  border-left: 4px solid var(--steel); border-radius: 0 var(--r-md) var(--r-md) 0;
  padding: 1.3rem 1.4rem; margin-bottom: .8rem; transition: all var(--ease);
}
.section-entry:hover { box-shadow: var(--sh-sm); border-left-color: var(--accent); }
.section-entry h3 { font-size: .98rem; margin-bottom: .4rem; color: var(--navy); }
.section-entry p  { font-size: .88rem; color: var(--text-muted); margin-bottom: .6rem; }
.section-entry__file {
  display: inline-flex; align-items: center; gap: .35rem; font-size: .8rem;
  font-weight: 600; color: var(--steel); padding: .28rem .7rem;
  border: 1px solid var(--steel); border-radius: var(--r-sm);
  transition: all var(--ease);
}
.section-entry__file:hover { background: var(--steel); color: var(--white); }

/* Paywall */
.paywall-banner {
  background: linear-gradient(135deg, #EFF6FF, #DBEAFE);
  border: 2px solid var(--accent); border-radius: var(--r-md);
  padding: 2rem 1.5rem; text-align: center; margin: 1rem 0;
  position: relative; overflow: hidden;
}
.paywall-banner::before {
  content: '⚠ ACCESS RESTRICTED'; position: absolute; top: .5rem; right: .75rem;
  font-size: .55rem; font-weight: 800; letter-spacing: .15em;
  color: rgba(0,80,180,.5); font-family: 'Courier New', monospace;
}
.paywall-banner h3 { margin-bottom: .5rem; }
.paywall-banner p  { color: var(--text-muted); font-size: .9rem; margin-bottom: 1.1rem; }

/* CBT lock notice */
.cbt-lock-notice {
  margin: .5rem .75rem; padding: .65rem .85rem;
  background: #EFF6FF; border: 1px solid rgba(0,80,180,.3);
  border-radius: 8px; font-size: .75rem; color: #1B4F8A; text-align: center; line-height: 1.5;
}
.cbt-lock-notice a { color: #0050b4; font-weight: 700; }

/* Mobile hamburger */
.hamburger {
  display: none; background: none; border: none; cursor: pointer;
  padding: .4rem; color: var(--white); align-items: center; justify-content: center;
}

/* Sidebar backdrop */
.sidebar-backdrop {
  display: none; position: fixed; inset: 0;
  background: rgba(0,0,0,.45); z-index: 98;
  opacity: 0; pointer-events: none; transition: opacity .3s;
}

/* Admin ribbon */
.admin-ribbon {
  background: linear-gradient(90deg, var(--accent), var(--accent-lt));
  color: var(--navy); padding: .5rem 1.25rem;
  font-size: .8rem; font-weight: 700;
  display: flex; align-items: center; gap: .75rem; flex-wrap: wrap;
}
.admin-ribbon a { color: var(--navy); font-weight: 800; text-decoration: underline; }

/* ════════════════════════════════════════════════════════════════════════════
   CBT QUIZ
   ════════════════════════════════════════════════════════════════════════════ */
.quiz-wrap   { max-width: 800px; margin: 0 auto; padding: 1.5rem 1.25rem; }
.quiz-bar {
  background: var(--white); border: 1px solid var(--border);
  border-radius: var(--r-md); padding: 1rem 1.25rem;
  display: flex; align-items: center; justify-content: space-between;
  gap: 1rem; margin-bottom: 1.5rem; box-shadow: var(--sh-sm);
  flex-wrap: wrap;
}
.quiz-timer {
  font-size: 1.4rem; font-weight: 700; font-family: 'Courier New', monospace;
  color: var(--navy); background: var(--surface); padding: .2rem .6rem;
  border-radius: var(--r-sm); border: 1px solid var(--border); letter-spacing: .05em;
}
.quiz-timer.warn { color: var(--danger); animation: pulse 1s ease-in-out infinite; }
@keyframes pulse { 0%,100%{opacity:1;} 50%{opacity:.5;} }

.progress-bar-track { height: 5px; background: var(--border); border-radius: 99px; overflow: hidden; margin-top: .3rem; }
.progress-bar-fill  { height: 100%; background: var(--accent); border-radius: 99px; transition: width .4s ease; }

.question-card {
  background: var(--white); border: 1px solid var(--border);
  border-left: 4px solid var(--steel); border-radius: 0 var(--r-md) var(--r-md) 0;
  padding: 1.5rem; margin-bottom: 1.1rem; box-shadow: var(--sh-sm);
}
.question-card__num  { font-size: .72rem; font-weight: 700; text-transform: uppercase;
                       letter-spacing: .1em; color: var(--steel); margin-bottom: .5rem;
                       font-family: 'Courier New', monospace; }
.question-card__text { font-size: 1rem; font-weight: 600; line-height: 1.6; margin-bottom: 1.25rem; }

.option-label {
  display: flex; align-items: flex-start; gap: .75rem;
  padding: .8rem 1rem; border: 1.5px solid var(--border); border-radius: var(--r-sm);
  cursor: pointer; margin-bottom: .5rem; transition: all var(--ease); font-size: .9rem;
  -webkit-tap-highlight-color: transparent;
}
.option-label:hover         { border-color: var(--steel); background: #EFF6FF; transform: translateX(3px); }
.option-label input[type="radio"] { margin-top: .1rem; accent-color: var(--steel); flex-shrink: 0; }
.option-label.correct       { border-color: var(--success); background: #ECFDF5; }
.option-label.wrong         { border-color: var(--danger);  background: #FEF2F2; }
.option-letter {
  display: inline-flex; align-items: center; justify-content: center;
  width: 22px; height: 22px; background: var(--surface); border-radius: 50%;
  font-size: .7rem; font-weight: 700; flex-shrink: 0; text-transform: uppercase;
}

.explanation-box {
  background: #EFF6FF; border: 1px solid #93C5FD; border-radius: var(--r-sm);
  padding: .9rem 1.1rem; margin-top: .9rem; font-size: .85rem; line-height: 1.65;
}
.explanation-box strong { color: #1B4F8A; }

/* Score / Results */
.score-hero {
  background: linear-gradient(135deg, #0a1628, #0D1B2A);
  border: 1px solid rgba(27,108,168,.3); border-radius: var(--r-lg);
  padding: 2.5rem 1.5rem; text-align: center; color: var(--white); margin-bottom: 2rem;
  position: relative; overflow: hidden;
}
.score-hero::before {
  content: ''; position: absolute; inset: 0;
  background-image: linear-gradient(rgba(27,108,168,.06) 1px, transparent 1px),
                    linear-gradient(90deg, rgba(27,108,168,.06) 1px, transparent 1px);
  background-size: 30px 30px; pointer-events: none;
}
.score-ring { font-family: var(--font-disp); font-size: 3.5rem; font-weight: 900; color: var(--accent); line-height: 1; }
.score-ring span { font-size: 1.3rem; opacity: .7; }
.score-stats { display: flex; justify-content: center; gap: 2rem; margin-top: 1.25rem; flex-wrap: wrap; }
.score-stat__num { font-size: 1.4rem; font-weight: 700; }
.score-stat__lbl { font-size: .72rem; opacity: .65; text-transform: uppercase; letter-spacing: .08em; }

/* ════════════════════════════════════════════════════════════════════════════
   ADMIN PANEL
   ════════════════════════════════════════════════════════════════════════════ */
.admin-wrap { display: grid; grid-template-columns: 240px 1fr; min-height: 100vh; }
.admin-sidebar {
  background: linear-gradient(180deg, var(--navy) 0%, #071220 100%);
  padding: 1.25rem 0; position: sticky; top: 0; height: 100vh; overflow-y: auto;
}
.admin-brand {
  padding: 0 1.25rem 1.25rem;
  font-family: var(--font-disp); font-size: 1.1rem; font-weight: 900; color: var(--white);
  border-bottom: 1px solid rgba(255,255,255,.08); margin-bottom: 1rem;
}
.admin-brand span { color: var(--accent); }
.admin-brand::after {
  content: 'MASTER CONTROL'; display: block;
  font-size: .5rem; font-weight: 700; letter-spacing: .18em;
  color: rgba(0,80,180,.45); margin-top: .2rem; font-family: 'Courier New', monospace;
}
.admin-nav-link {
  display: flex; align-items: center; gap: .55rem;
  padding: .65rem 1.25rem; font-size: .85rem; font-weight: 500;
  color: rgba(255,255,255,.6); transition: all var(--ease); text-decoration: none;
}
.admin-nav-link:hover { color: var(--white); background: rgba(255,255,255,.07); }
.admin-nav-link.active { color: var(--white); background: rgba(27,108,168,.35); border-right: 3px solid var(--accent); }
.admin-main { padding: 2rem 2rem; background: var(--surface); overflow-x: hidden; }
.admin-page-title { margin-bottom: 1.75rem; padding-bottom: .9rem; border-bottom: 1px solid var(--border); }
.admin-page-title h1 { font-size: 1.5rem; }
.admin-section { margin-bottom: 2.5rem; }
.admin-section__title {
  font-size: .78rem; font-weight: 700; text-transform: uppercase; letter-spacing: .08em;
  color: var(--text-muted); margin-bottom: .85rem;
  display: flex; align-items: center; gap: .4rem;
}
.admin-section__title::after { content: ''; flex: 1; height: 1px; background: var(--border); }
.action-row { display: flex; align-items: center; gap: .4rem; flex-wrap: wrap; }

/* ════════════════════════════════════════════════════════════════════════════
   LANDING PAGE ANIMATIONS
   ════════════════════════════════════════════════════════════════════════════ */
@keyframes spin-slow { to { transform: rotate(360deg);  } }
@keyframes spin-rev  { to { transform: rotate(-360deg); } }
@keyframes float     { 0%,100%{transform:translateY(0);}  50%{transform:translateY(-10px);} }
@keyframes scan      { 0%{top:0;} 100%{top:100%;} }
@keyframes fadeInUp  { from{opacity:0;transform:translateY(20px);} to{opacity:1;transform:translateY(0);} }

/* ════════════════════════════════════════════════════════════════════════════
   MOBILE RESPONSIVE — Breakpoints: 1024px | 768px | 600px | 420px
   ════════════════════════════════════════════════════════════════════════════ */

/* ── 1024px: tablet landscape ─────────────────────────────────────────── */
@media (max-width: 1024px) {
  /* dash-wrap is now display:block so grid-template-columns is ignored */
  /* Slightly reduce sidebar width and matching main margin on tablets */
  .dash-sidebar { width: 220px; }
  .dash-main    { margin-left: 220px; padding: 1.25rem 1.5rem; }
  .admin-wrap { grid-template-columns: 200px 1fr; }
  .admin-main { padding: 1.5rem; }
}

/* ── 900px: tablet portrait ──────────────────────────────────────────── */
@media (max-width: 900px) {

  /* Auth pages */
  .auth-full { grid-template-columns: 1fr; }
  .auth-img-panel { display: none; }
  .auth-form-panel { min-height: 100vh; }

  /* Dashboard — slide-in sidebar */
  .hamburger { display: flex; }
  /* display:block removes ghost grid column that caused blank space on mobile */
  .dash-wrap  { display: block; min-height: 0; }
  .dash-sidebar {
    position: fixed; top: 64px; left: 0; width: 280px;
    height: calc(100vh - 64px);
    z-index: 99; transform: translateX(-100%);
    transition: transform .3s cubic-bezier(.4,0,.2,1);
    box-shadow: 4px 0 24px rgba(0,0,0,.18);
    overflow-y: auto;
  }
  .dash-sidebar.is-open { transform: translateX(0); }
  .sidebar-backdrop     { display: block; }
  .sidebar-backdrop.is-open { opacity: 1; pointer-events: auto; }
  .dash-main { margin-left: 0; padding: 1rem; width: 100%; display: block; min-height: 0; }

  /* Admin sidebar — hidden on mobile (replaced by topbar + slide-out) */
  .admin-wrap    { grid-template-columns: 1fr; }
  .admin-sidebar { display: none; }
  .admin-main    { padding: 1.25rem; }

  /* Nav */
  .site-nav__links { gap: .6rem; }
  .nav-user-desktop { display: none !important; }
}

/* ── 768px: tablet small ─────────────────────────────────────────────── */
@media (max-width: 768px) {
  :root { font-size: 15px; }

  /* Score stats */
  .score-stats { gap: 1.25rem; }
  .score-ring  { font-size: 2.8rem; }

  /* Quiz */
  .quiz-bar { flex-direction: column; align-items: flex-start; }
  .question-card { padding: 1.1rem; }
  .option-label  { padding: .7rem .85rem; }

  /* Grid */
  .grid-2 { grid-template-columns: 1fr; }

  /* Table — hide less important columns on small screens */
  .hide-sm { display: none; }

  /* Forms — stack password fields */
  .form-row-2 { grid-template-columns: 1fr !important; }

  /* Landing hero */
  .hero-grid { grid-template-columns: 1fr !important; }
  .hero-visual { display: none !important; }
  .gear-wrap   { display: none !important; }
}

/* ── 600px: large phone ──────────────────────────────────────────────── */
@media (max-width: 600px) {
  :root { font-size: 14.5px; }

  /* Nav */
  .site-nav__inner { padding: 0 .75rem; }
  .site-nav__brand { font-size: 1.05rem; }
  .btn-nav { padding: .35rem .75rem; font-size: .75rem !important; }

  /* Dashboard hero image */
  .dash-hero         { height: 130px; border-radius: 10px; }
  .dash-hero-overlay { padding: 1rem 1.1rem; }
  .dash-hero-text h1 { font-size: 1rem; }
  .dash-hero-text p  { font-size: .78rem; }

  /* Cards */
  .card { padding: 1.1rem; }

  /* Section entry */
  .section-entry { padding: 1rem 1rem; }

  /* Buttons */
  .btn { padding: .58rem 1.1rem; font-size: .85rem; }

  /* Admin table — minimum columns */
  .admin-table-col-hide { display: none; }

  /* Footer */
  .site-footer { padding: 1.25rem .75rem; font-size: .72rem; }

  /* Score page */
  .score-hero { padding: 1.75rem 1rem; border-radius: var(--r-md); }
  .score-ring { font-size: 2.4rem; }

  /* Pricing on landing */
  .pricing-card { padding: 1.75rem 1.25rem; }

  /* Stats row on landing */
  .stats-row    { gap: 1.25rem; }
  .stat-item .num { font-size: 1.5rem; }
}

/* ── 420px: small phone ──────────────────────────────────────────────── */
@media (max-width: 420px) {
  :root { font-size: 14px; }

  .site-nav__links { gap: .5rem; }
  .site-nav__links > span { display: none; } /* hide user name */

  .quiz-timer { font-size: 1.1rem; }
  .question-card__text { font-size: .9rem; }
  .option-label { font-size: .85rem; gap: .55rem; }

  .auth-form-panel { padding: 1.5rem 1rem; }
  .auth-form-inner { max-width: 100%; }

  .btn--full { font-size: .88rem; }
  .admin-main { padding: .9rem; }

  /* Score */
  .score-stats { gap: .9rem; }
  .score-stat__num { font-size: 1.2rem; }

  /* Table horizontal scroll hint */
  .table-wrap::after {
    content: '← Scroll →'; display: block; text-align: center;
    font-size: .65rem; color: var(--text-muted); padding: .3rem;
    background: var(--surface);
  }
}

/* ── Touch-friendly tap targets ──────────────────────────────────────── */
@media (hover: none) {
  .option-label:hover     { transform: none; }
  .card--hover:hover      { transform: none; }
  .section-entry:hover    { transform: none; }
  .btn                    { min-height: 44px; }
  .sidebar-link           { min-height: 44px; }
  .admin-nav-link         { min-height: 44px; }
  .form-control           { font-size: 16px; } /* prevent iOS zoom */
}

/* ── Print ───────────────────────────────────────────────────────────── */
@media print {
  .site-nav, .dash-sidebar, .admin-sidebar, .hamburger, .site-footer { display: none !important; }
  .dash-wrap  { margin-left: 0 !important; }
  .admin-wrap { grid-template-columns: 1fr !important; }
  body { font-size: 12pt; }
}

/* ── Auth form — mobile: image is the ONLY background, make it richer ── */
@media (max-width: 900px) {
  .auth-form-panel::before { opacity: .45; }
  .auth-form-panel::after  { background: rgba(255,255,255,.5); }
  .auth-form-panel { background: #fff; }
}