/* ============================================================
   PRESENÇA MAGNÉTICA — Stylesheet
   Paleta: Orange #E8420A | Purple #3D1F5C | Gold #F5C127 | Skin #D9B08C | Cream #F7F3EE
   ============================================================ */

:root {
  --orange:  #E8420A;
  --orange2: #c93608;
  --purple:  #3D1F5C;
  --purple2: #2a1540;
  --gold:    #F5C127;
  --skin:    #D9B08C;
  --cream:   #F7F3EE;
  --dark:    #1A0E2B;
  --dark2:   #120A1F;
  --dark3:   #241440;
  --white:   #FFFFFF;
  --radius:  12px;
  --shadow:  0 8px 32px rgba(0,0,0,0.4);
}

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

html { scroll-behavior: smooth; }

body {
  font-family: 'Lato', sans-serif;
  background: var(--dark);
  color: var(--cream);
  min-height: 100vh;
  line-height: 1.6;
}

h1,h2,h3,h4,h5 { font-family: 'Playfair Display', serif; line-height: 1.2; }

a { color: var(--gold); text-decoration: none; }
a:hover { text-decoration: underline; }

img { max-width: 100%; display: block; }

::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--dark); }
::-webkit-scrollbar-thumb { background: var(--purple); border-radius: 3px; }

/* ── NAVBAR ─────────────────────────────────────────────── */
.navbar {
  position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
  background: rgba(26,14,43,0.97);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(245,193,39,0.15);
}

.nav-container {
  max-width: 1200px; margin: 0 auto;
  padding: 0 24px;
  display: flex; align-items: center; gap: 8px;
  height: 64px;
  position: relative;
}

.nav-brand {
  display: flex; align-items: center; gap: 8px;
  font-family: 'Playfair Display', serif;
  font-size: 20px; font-weight: 700;
  color: var(--gold) !important;
  text-decoration: none;
  flex: 1;
}

.nav-brand:hover,
.nav-brand:focus,
.nav-brand:active {
  text-decoration: none;
}

.brand-icon { font-size: 22px; }

.nav-menu {
  display: flex; align-items: center; gap: 4px;
}

.nav-link {
  padding: 8px 14px; border-radius: 8px;
  font-size: 14px; font-weight: 600; color: rgba(247,243,238,0.7);
  text-decoration: none; transition: all 0.2s;
  display: flex; align-items: center; gap: 4px;
  position: relative;
}
.nav-link:hover { color: var(--cream); background: rgba(255,255,255,0.07); text-decoration: none; }
.nav-link.active { color: var(--gold); }
.nav-admin { color: var(--orange) !important; }
.nav-logout { color: rgba(247,243,238,0.4); font-size: 13px; }

.notif-badge {
  position: absolute; top: 4px; right: 4px;
  background: var(--orange); color: white;
  font-size: 10px; font-weight: 900;
  width: 16px; height: 16px; border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
}

.avatar-sm {
  width: 32px; height: 32px; border-radius: 50%;
  background: linear-gradient(135deg, var(--orange), var(--purple));
  display: flex; align-items: center; justify-content: center;
  font-weight: 700; font-size: 14px; color: white;
}

.nav-toggle {
  display: none; flex-direction: column; gap: 5px;
  background: none; border: none; cursor: pointer; padding: 4px;
}
.nav-open-control { display: none; }
.nav-toggle span {
  display: block; width: 24px; height: 2px;
  background: var(--cream); border-radius: 2px; transition: all 0.3s;
}

.nav-spacer { height: 64px; }

/* ── LAYOUT ──────────────────────────────────────────────── */
.main-content { min-height: calc(100vh - 64px - 80px); }

.container { max-width: 1100px; margin: 0 auto; padding: 0 24px; }
.container-sm { max-width: 680px; margin: 0 auto; padding: 0 24px; }
.container-md { max-width: 860px; margin: 0 auto; padding: 0 24px; }

.page-header {
  background: linear-gradient(135deg, var(--purple2) 0%, var(--dark) 100%);
  border-bottom: 1px solid rgba(245,193,39,0.12);
  padding: 48px 0 40px;
}

.page-header h1 { font-size: clamp(28px, 5vw, 44px); color: var(--cream); }
.page-header p  { color: var(--skin); font-size: 17px; margin-top: 8px; }

.section { padding: 48px 0; }

/* ── CARDS ───────────────────────────────────────────────── */
.card {
  background: rgba(61,31,92,0.25);
  border: 1px solid rgba(245,193,39,0.12);
  border-radius: var(--radius);
  padding: 28px;
  transition: border-color 0.2s, transform 0.2s;
}
.card:hover { border-color: rgba(245,193,39,0.3); }
.card-elevated {
  background: var(--dark3);
  box-shadow: var(--shadow);
}
.card-orange { border-left: 4px solid var(--orange); }
.card-gold   { border-left: 4px solid var(--gold); }
.card-green  { border-left: 4px solid #28C864; }

/* ── BUTTONS ─────────────────────────────────────────────── */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 13px 28px; border-radius: 10px;
  font-family: 'Lato', sans-serif; font-size: 15px; font-weight: 700;
  border: none; cursor: pointer; transition: all 0.2s;
  text-decoration: none; letter-spacing: 0.3px;
}
.btn:hover { transform: translateY(-2px); text-decoration: none; }
.btn:active { transform: translateY(0); }

.btn-primary   { background: var(--orange); color: white; box-shadow: 0 4px 16px rgba(232,66,10,0.35); }
.btn-primary:hover { background: var(--orange2); box-shadow: 0 8px 24px rgba(232,66,10,0.5); color: white; }

.btn-gold      { background: var(--gold); color: var(--dark); box-shadow: 0 4px 16px rgba(245,193,39,0.35); }
.btn-gold:hover { background: #d9a818; box-shadow: 0 8px 24px rgba(245,193,39,0.5); color: var(--dark); }

.btn-outline   { background: transparent; color: var(--gold); border: 2px solid var(--gold); }
.btn-outline:hover { background: var(--gold); color: var(--dark); }

.btn-ghost     { background: rgba(255,255,255,0.07); color: var(--cream); border: 1px solid rgba(255,255,255,0.15); }
.btn-ghost:hover { background: rgba(255,255,255,0.12); color: var(--cream); }

.btn-danger    { background: rgba(220,50,50,0.15); color: #e05555; border: 1px solid rgba(220,50,50,0.3); }
.btn-danger:hover { background: rgba(220,50,50,0.25); color: #e05555; }

.btn-sm { padding: 8px 16px; font-size: 13px; border-radius: 8px; }
.btn-lg { padding: 17px 40px; font-size: 17px; }
.btn-block { width: 100%; }

.btn-loading { opacity: 0.7; pointer-events: none; }

/* ── FORMS ───────────────────────────────────────────────── */
.form-group { margin-bottom: 20px; }
.form-label { display: block; font-size: 13px; font-weight: 700; color: var(--skin); margin-bottom: 6px; text-transform: uppercase; letter-spacing: 0.5px; }
.form-control {
  width: 100%; padding: 13px 16px;
  background: rgba(255,255,255,0.07);
  border: 1px solid rgba(247,243,238,0.18);
  border-radius: 10px; color: var(--cream);
  font-family: 'Lato', sans-serif; font-size: 15px;
  transition: border-color 0.2s, background 0.2s;
  outline: none;
}
.form-control:focus { border-color: var(--gold); background: rgba(255,255,255,0.1); }
.form-control::placeholder { color: rgba(247,243,238,0.35); }
.form-control option { background: var(--dark3); color: var(--cream); }

textarea.form-control { resize: vertical; min-height: 100px; }

.form-hint { font-size: 12px; color: rgba(247,243,238,0.45); margin-top: 5px; }
.form-error { color: #e05555; font-size: 13px; margin-top: 5px; }

.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }

/* ── ALERTS ──────────────────────────────────────────────── */
.alert {
  padding: 14px 18px; border-radius: 10px;
  font-size: 14px; font-weight: 600; margin-bottom: 20px;
  display: flex; align-items: center; gap: 10px;
}
.alert-success { background: rgba(40,200,100,0.15); border: 1px solid rgba(40,200,100,0.3); color: #28C864; }
.alert-error   { background: rgba(220,50,50,0.15); border: 1px solid rgba(220,50,50,0.3); color: #e05555; }
.alert-info    { background: rgba(245,193,39,0.15); border: 1px solid rgba(245,193,39,0.3); color: var(--gold); }
.alert-warning { background: rgba(232,66,10,0.15); border: 1px solid rgba(232,66,10,0.3); color: var(--orange); }

/* ── BADGES ──────────────────────────────────────────────── */
.badge {
  display: inline-flex; align-items: center; gap: 4px;
  padding: 4px 12px; border-radius: 20px;
  font-size: 12px; font-weight: 700; text-transform: uppercase; letter-spacing: 0.5px;
  font-family: 'Lato', sans-serif;
}
.badge-gold    { background: rgba(245,193,39,0.15); color: var(--gold); border: 1px solid rgba(245,193,39,0.4); }
.badge-orange  { background: rgba(232,66,10,0.15); color: var(--orange); border: 1px solid rgba(232,66,10,0.4); }
.badge-green   { background: rgba(40,200,100,0.15); color: #28C864; border: 1px solid rgba(40,200,100,0.4); }
.badge-red     { background: rgba(220,50,50,0.15); color: #e05555; border: 1px solid rgba(220,50,50,0.4); }
.badge-purple  { background: rgba(61,31,92,0.5); color: var(--skin); border: 1px solid rgba(61,31,92,0.8); }

/* ── PROGRESS BAR ────────────────────────────────────────── */
.progress { background: rgba(255,255,255,0.08); border-radius: 99px; height: 10px; overflow: hidden; }
.progress-bar { height: 100%; border-radius: 99px; transition: width 0.8s ease; }
.progress-orange { background: linear-gradient(90deg, var(--orange), var(--gold)); }
.progress-gold   { background: linear-gradient(90deg, var(--gold), #fff8); }
.progress-purple { background: linear-gradient(90deg, var(--purple), var(--orange)); }

/* ── STATS GRID ──────────────────────────────────────────── */
.stats-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(160px,1fr)); gap: 16px; }
.stat-card {
  background: var(--dark3); border: 1px solid rgba(245,193,39,0.1);
  border-radius: var(--radius); padding: 24px; text-align: center;
  transition: transform 0.2s;
}
.stat-card:hover { transform: translateY(-3px); }
.stat-number { font-family: 'Playfair Display', serif; font-size: 42px; font-weight: 900; color: var(--gold); }
.stat-label  { font-size: 13px; color: var(--skin); text-transform: uppercase; letter-spacing: 0.5px; margin-top: 4px; }

/* ── CHALLENGE CARDS ─────────────────────────────────────── */
.challenge-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px,1fr)); gap: 20px; }

.challenge-card {
  background: var(--dark3);
  border: 2px solid rgba(61,31,92,0.6);
  border-radius: 16px; padding: 24px;
  transition: all 0.3s; position: relative; overflow: hidden;
}
.challenge-card::before {
  content: ''; position: absolute; top: 0; left: 0; right: 0; height: 3px;
  background: linear-gradient(90deg, var(--orange), var(--gold));
  opacity: 0; transition: opacity 0.3s;
}
.challenge-card:hover::before { opacity: 1; }
.challenge-card.locked { opacity: 0.5; pointer-events: none; }
.challenge-card.completed { border-color: rgba(245,193,39,0.4); }
.challenge-card.completed::before { opacity: 1; background: linear-gradient(90deg, var(--gold), var(--gold)); }
.challenge-card.current { border-color: var(--orange); animation: pulse-border 2s ease-in-out infinite; }

@keyframes pulse-border {
  0%,100% { box-shadow: 0 0 0 0 rgba(232,66,10,0); }
  50%      { box-shadow: 0 0 0 6px rgba(232,66,10,0.2); }
}

.challenge-day { font-size: 12px; font-weight: 700; color: var(--skin); text-transform: uppercase; letter-spacing: 1px; }
.challenge-badge { font-size: 32px; margin: 8px 0; }
.challenge-title { font-family: 'Playfair Display', serif; font-size: 18px; color: var(--cream); }
.challenge-obj { font-size: 13px; color: var(--skin); margin-top: 8px; line-height: 1.5; }
.challenge-status { position: absolute; top: 16px; right: 16px; font-size: 20px; }

/* ── VIDEO PLAYER ────────────────────────────────────────── */
.video-wrap {
  position: relative; padding-bottom: 56.25%; height: 0; overflow: hidden;
  border-radius: var(--radius); background: #000;
  box-shadow: 0 20px 60px rgba(0,0,0,0.6);
}
.video-wrap iframe { position: absolute; top: 0; left: 0; width: 100%; height: 100%; border: none; }

/* ── COMMUNITY ───────────────────────────────────────────── */
.post-card {
  background: var(--dark3);
  border: 1px solid rgba(61,31,92,0.5);
  border-radius: var(--radius); padding: 22px;
  margin-bottom: 16px; transition: border-color 0.2s;
}
.post-card:hover { border-color: rgba(245,193,39,0.2); }
.post-author { display: flex; align-items: center; gap: 12px; margin-bottom: 12px; }
.avatar-md {
  width: 42px; height: 42px; border-radius: 50%;
  background: linear-gradient(135deg, var(--orange), var(--purple));
  display: flex; align-items: center; justify-content: center;
  font-weight: 700; font-size: 16px; color: white; flex-shrink: 0;
}
.post-name { font-weight: 700; font-size: 15px; color: var(--cream); }
.post-date { font-size: 12px; color: rgba(247,243,238,0.4); }
.post-body { color: var(--cream); font-size: 15px; line-height: 1.7; }
.testimonial-card { border-left: 4px solid var(--gold); }

/* ── TABS ────────────────────────────────────────────────── */
.tabs { display: flex; gap: 4px; border-bottom: 1px solid rgba(245,193,39,0.15); margin-bottom: 28px; overflow-x: auto; }
.tab-btn {
  padding: 12px 20px; border: none; border-bottom: 3px solid transparent;
  background: transparent; color: rgba(247,243,238,0.5);
  font-family: 'Lato', sans-serif; font-size: 13px; font-weight: 700;
  text-transform: uppercase; letter-spacing: 0.5px;
  cursor: pointer; transition: all 0.2s; white-space: nowrap;
  margin-bottom: -1px;
}
.tab-btn:hover { color: var(--cream); }
.tab-btn.active { color: var(--gold); border-bottom-color: var(--gold); }

.tab-content { display: none; }
.tab-content.active { display: block; }

/* ── TABLE ───────────────────────────────────────────────── */
.table-wrap { overflow-x: auto; border-radius: var(--radius); }
table { width: 100%; border-collapse: collapse; }
thead th {
  background: rgba(61,31,92,0.5);
  padding: 12px 16px; text-align: left;
  font-size: 12px; font-weight: 700; text-transform: uppercase;
  letter-spacing: 0.5px; color: var(--skin);
  border-bottom: 1px solid rgba(245,193,39,0.15);
}
tbody td {
  padding: 14px 16px; font-size: 14px; color: var(--cream);
  border-bottom: 1px solid rgba(255,255,255,0.04);
}
tbody tr:hover { background: rgba(255,255,255,0.03); }
tbody tr:last-child td { border-bottom: none; }

/* ── GAMIFICATION ────────────────────────────────────────── */
.level-badge {
  display: inline-flex; align-items: center; gap: 8px;
  background: linear-gradient(135deg, var(--purple), var(--dark));
  border: 2px solid var(--gold);
  padding: 8px 18px; border-radius: 40px;
  font-weight: 700; font-size: 15px;
}

.achievement-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(120px,1fr)); gap: 12px; }
.achievement {
  background: var(--dark3); border: 1px solid rgba(61,31,92,0.6);
  border-radius: 12px; padding: 16px; text-align: center;
  transition: all 0.2s;
}
.achievement.unlocked { border-color: var(--gold); background: rgba(245,193,39,0.08); }
.achievement.locked { opacity: 0.35; filter: grayscale(1); }
.achievement-icon { font-size: 32px; }
.achievement-name { font-size: 11px; font-weight: 700; color: var(--skin); margin-top: 6px; text-transform: uppercase; letter-spacing: 0.3px; }

/* ── CERTIFICATE ─────────────────────────────────────────── */
.certificate-preview {
  background: linear-gradient(135deg, var(--dark2) 0%, var(--purple2) 100%);
  border: 3px solid var(--gold);
  border-radius: 16px; padding: 60px 40px;
  text-align: center; position: relative; overflow: hidden;
}
.certificate-preview::before {
  content: ''; position: absolute; inset: 10px;
  border: 1px solid rgba(245,193,39,0.3); border-radius: 10px; pointer-events: none;
}
.cert-title  { font-size: 14px; font-weight: 700; color: var(--gold); text-transform: uppercase; letter-spacing: 3px; }
.cert-name   { font-family: 'Playfair Display', serif; font-size: clamp(28px,5vw,52px); color: var(--gold); margin: 20px 0; }
.cert-body   { font-size: 16px; color: var(--cream); max-width: 500px; margin: 0 auto; line-height: 1.8; }
.cert-sign   { margin-top: 40px; }
.cert-line   { width: 200px; height: 1px; background: var(--gold); margin: 0 auto 8px; }
.cert-signer { font-weight: 700; color: var(--gold); }
.cert-role   { font-size: 13px; color: var(--skin); }

/* ── POPUP / MODAL ───────────────────────────────────────── */
.modal-overlay {
  display: none; position: fixed; inset: 0; z-index: 9000;
  background: rgba(10,5,20,0.85); backdrop-filter: blur(6px);
  align-items: center; justify-content: center; padding: 24px;
}
.modal-overlay.open { display: flex; }
.modal {
  background: var(--dark3);
  border: 1px solid rgba(245,193,39,0.25);
  border-radius: 20px; padding: 40px;
  max-width: 520px; width: 100%;
  animation: modalIn 0.35s cubic-bezier(0.34,1.56,0.64,1) forwards;
  position: relative;
}
@keyframes modalIn { from { opacity:0; transform:scale(0.8) translateY(30px); } to { opacity:1; transform:scale(1) translateY(0); } }

.modal-close {
  position: absolute; top: 16px; right: 16px;
  background: rgba(255,255,255,0.08); border: none; border-radius: 50%;
  width: 32px; height: 32px; color: var(--cream); cursor: pointer; font-size: 18px;
  display: flex; align-items: center; justify-content: center; transition: background 0.2s;
}
.modal-close:hover { background: rgba(255,255,255,0.15); }
.modal-icon { font-size: 52px; margin-bottom: 16px; }
.modal h2  { font-family: 'Playfair Display', serif; color: var(--gold); margin-bottom: 12px; }
.modal p   { color: var(--skin); line-height: 1.7; }

/* ── TOAST ───────────────────────────────────────────────── */
#toast-container { position: fixed; bottom: 24px; right: 24px; z-index: 9999; display: flex; flex-direction: column; gap: 8px; }
.toast {
  background: var(--dark3); border: 1px solid rgba(245,193,39,0.3);
  border-radius: 10px; padding: 14px 20px; color: var(--cream);
  font-size: 14px; font-weight: 600; min-width: 260px; max-width: 360px;
  display: flex; align-items: center; gap: 10px;
  animation: toastIn 0.3s ease forwards;
  box-shadow: 0 8px 32px rgba(0,0,0,0.4);
}
.toast.success { border-color: rgba(40,200,100,0.4); }
.toast.error   { border-color: rgba(220,50,50,0.4); }
@keyframes toastIn  { from { opacity:0; transform:translateX(80px); } to { opacity:1; transform:translateX(0); } }
@keyframes toastOut { from { opacity:1; transform:translateX(0); } to { opacity:0; transform:translateX(80px); } }

/* ── LOGIN PAGE ──────────────────────────────────────────── */
.auth-wrap {
  min-height: 100vh; display: flex; align-items: center; justify-content: center;
  padding: 24px;
  background: radial-gradient(ellipse at 30% 20%, rgba(61,31,92,0.5) 0%, transparent 60%),
              radial-gradient(ellipse at 70% 80%, rgba(232,66,10,0.15) 0%, transparent 50%),
              var(--dark);
}
.auth-card {
  background: rgba(36,20,64,0.9);
  border: 1px solid rgba(245,193,39,0.2);
  border-radius: 20px; padding: 48px 40px;
  width: 100%; max-width: 440px;
  box-shadow: 0 40px 80px rgba(0,0,0,0.6);
  animation: fadeUp 0.5s ease forwards;
}
.auth-logo { text-align: center; margin-bottom: 32px; }
.auth-logo h1 { font-family: 'Playfair Display', serif; font-size: 28px; color: var(--gold); }
.auth-logo p  { color: var(--skin); font-size: 14px; margin-top: 4px; }
.auth-divider { display: flex; align-items: center; gap: 12px; margin: 20px 0; color: rgba(247,243,238,0.3); font-size: 13px; }
.auth-divider::before, .auth-divider::after { content:''; flex:1; height:1px; background:rgba(247,243,238,0.1); }
.auth-links { text-align: center; margin-top: 20px; font-size: 14px; color: rgba(247,243,238,0.5); }

/* ── ADMIN ───────────────────────────────────────────────── */
.admin-sidebar {
  background: var(--dark2);
  border-right: 1px solid rgba(245,193,39,0.12);
  width: 240px; flex-shrink: 0;
  padding: 24px 0;
  min-height: calc(100vh - 64px);
}
.admin-layout { display: flex; min-height: calc(100vh - 64px); }
.admin-main { flex: 1; padding: 32px; overflow: hidden; }
.admin-nav-link {
  display: flex; align-items: center; gap: 10px;
  padding: 12px 24px; color: rgba(247,243,238,0.6);
  font-size: 14px; font-weight: 600; text-decoration: none;
  transition: all 0.2s; border-left: 3px solid transparent;
}
.admin-nav-link:hover { color: var(--cream); background: rgba(255,255,255,0.05); text-decoration: none; }
.admin-nav-link.active { color: var(--gold); border-left-color: var(--gold); background: rgba(245,193,39,0.07); }
.admin-section-title { font-size: 11px; font-weight: 700; color: rgba(247,243,238,0.25); text-transform: uppercase; letter-spacing: 1px; padding: 16px 24px 8px; }

/* ── FOOTER ──────────────────────────────────────────────── */
.site-footer {
  background: var(--dark2);
  border-top: 1px solid rgba(245,193,39,0.1);
  padding: 24px;
}
.footer-inner { max-width: 1100px; margin: 0 auto; text-align: center; }
.footer-inner p { font-size: 13px; color: rgba(247,243,238,0.4); }
.footer-sub { font-size: 12px; margin-top: 4px; }

/* ── UTILITIES ───────────────────────────────────────────── */
.text-gold   { color: var(--gold); }
.text-orange { color: var(--orange); }
.text-skin   { color: var(--skin); }
.text-muted  { color: rgba(247,243,238,0.45); }
.text-center { text-align: center; }
.text-right  { text-align: right; }
.mt-0{margin-top:0} .mt-8{margin-top:8px} .mt-12{margin-top:12px} .mt-16{margin-top:16px} .mt-24{margin-top:24px} .mt-32{margin-top:32px} .mt-40{margin-top:40px} .mt-48{margin-top:48px}
.mb-0{margin-bottom:0} .mb-8{margin-bottom:8px} .mb-12{margin-bottom:12px} .mb-16{margin-bottom:16px} .mb-24{margin-bottom:24px} .mb-32{margin-bottom:32px}
.gap-8{gap:8px} .gap-12{gap:12px} .gap-16{gap:16px} .gap-24{gap:24px}
.flex{display:flex} .flex-col{flex-direction:column} .items-center{align-items:center} .justify-between{justify-content:space-between} .justify-center{justify-content:center} .flex-wrap{flex-wrap:wrap} .flex-1{flex:1}
.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.d-none{display:none} .d-block{display:block}
.w-full{width:100%} .rounded{border-radius:var(--radius)}

.divider { height: 1px; background: rgba(245,193,39,0.1); margin: 24px 0; }

@keyframes fadeUp { from { opacity:0; transform:translateY(24px); } to { opacity:1; transform:translateY(0); } }
@keyframes pulse  { 0%,100%{transform:scale(1)} 50%{transform:scale(1.04)} }

/* ── RESPONSIVE ──────────────────────────────────────────── */
@media (max-width: 768px) {
  .nav-toggle { display: flex; }
  .nav-menu {
    display: none;
    flex-direction: column;
    gap: 4px;
    position: fixed;
    top: 64px;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 1200;
    background: rgba(26,14,43,0.98);
    padding: 16px;
    overflow-y: auto;
    box-shadow: 0 20px 40px rgba(0,0,0,0.45);
  }
  .nav-open-control:checked ~ .nav-menu { display: flex !important; }
  .nav-link { padding: 14px 16px; font-size: 16px; }

  .admin-layout { flex-direction: column; }
  .admin-sidebar { width: 100%; min-height: auto; }
  .admin-main { padding: 20px 16px; }

  .auth-card { padding: 32px 24px; }
  .grid-2, .grid-3, .form-row { grid-template-columns: 1fr; }
  .challenge-grid { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: repeat(2,1fr); }
  .certificate-preview { padding: 40px 24px; }
  .modal { padding: 28px 24px; }
  .page-header { padding: 32px 0 24px; }
  .section { padding: 32px 0; }
  .container, .container-sm, .container-md { padding: 0 16px; }
}