/* ============================================================
   خانه اساتید — طراحی حرفه‌ای
   فونت: IRANYekanX + IranSharp
   تم: روشن، مدرن، اعتمادساز
   ============================================================ */

@font-face { font-family:'IRANYekanX'; src:url('/fonts/IRANYekanX-Thin.woff2') format('woff2'); font-weight:100; font-display:swap; }
@font-face { font-family:'IRANYekanX'; src:url('/fonts/IRANYekanX-Light.woff2') format('woff2'); font-weight:300; font-display:swap; }
@font-face { font-family:'IRANYekanX'; src:url('/fonts/IRANYekanX-Regular.woff2') format('woff2'); font-weight:400; font-display:swap; }
@font-face { font-family:'IRANYekanX'; src:url('/fonts/IRANYekanX-Medium.woff2') format('woff2'); font-weight:500; font-display:swap; }
@font-face { font-family:'IRANYekanX'; src:url('/fonts/IRANYekanX-DemiBold.woff2') format('woff2'); font-weight:600; font-display:swap; }
@font-face { font-family:'IRANYekanX'; src:url('/fonts/IRANYekanX-Bold.woff2') format('woff2'); font-weight:700; font-display:swap; }
@font-face { font-family:'IRANYekanX'; src:url('/fonts/IRANYekanX-ExtraBold.woff2') format('woff2'); font-weight:800; font-display:swap; }
@font-face { font-family:'IRANYekanX'; src:url('/fonts/IRANYekanX-Black.woff2') format('woff2'); font-weight:900; font-display:swap; }
@font-face { font-family:'IranSharp'; src:url('/fonts/iransharp_bold_web.woff2') format('woff2'); font-weight:700; font-display:swap; }

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

:root {
  --blue:       #1a56db;
  --blue-d:     #1447c0;
  --blue-l:     #3b82f6;
  --blue-xl:    #eff6ff;
  --blue-2xl:   #dbeafe;

  --teal:       #0d9488;
  --teal-l:     #ccfbf1;

  --slate-50:   #f8fafc;
  --slate-100:  #f1f5f9;
  --slate-200:  #e2e8f0;
  --slate-300:  #cbd5e1;
  --slate-400:  #94a3b8;
  --slate-500:  #64748b;
  --slate-600:  #475569;
  --slate-700:  #334155;
  --slate-800:  #1e293b;
  --slate-900:  #0f172a;

  --green:      #16a34a;
  --green-l:    #dcfce7;
  --red:        #dc2626;
  --red-l:      #fee2e2;
  --amber:      #d97706;
  --amber-l:    #fef3c7;

  --white:      #ffffff;
  --bg:         #f8fafc;
  --border:     #e2e8f0;
  --border-l:   #f1f5f9;

  --sidebar-bg: #0f172a;
  --sidebar-w:  268px;

  --r-sm:   6px;
  --r:      10px;
  --r-lg:   14px;
  --r-xl:   20px;
  --r-full: 9999px;

  --sh-xs:  0 1px 2px rgba(0,0,0,.06);
  --sh-sm:  0 1px 3px rgba(0,0,0,.08),0 1px 2px rgba(0,0,0,.04);
  --sh:     0 4px 6px -1px rgba(0,0,0,.07),0 2px 4px -1px rgba(0,0,0,.04);
  --sh-md:  0 10px 15px -3px rgba(0,0,0,.08),0 4px 6px -2px rgba(0,0,0,.04);
  --sh-lg:  0 20px 25px -5px rgba(0,0,0,.09),0 10px 10px -5px rgba(0,0,0,.03);
  --sh-xl:  0 25px 50px -12px rgba(0,0,0,.18);

  --tr: all .18s cubic-bezier(.4,0,.2,1);
}

html { font-size:16px; scroll-behavior:smooth; }
body {
  font-family:'IRANYekanX',Tahoma,sans-serif;
  direction:rtl; color:var(--slate-800);
  background:var(--bg); line-height:1.7;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,h5 {
  font-family:'IranSharp','IRANYekanX',Tahoma,sans-serif;
  line-height:1.35; color:var(--slate-900);
}
a { color:var(--blue); text-decoration:none; transition:var(--tr); }
a:hover { color:var(--blue-d); }
img { max-width:100%; display:block; }
code {
  font-family:monospace; background:var(--slate-100);
  color:var(--blue-d); padding:2px 8px;
  border-radius:var(--r-sm); font-size:.82em;
}
::selection { background:var(--blue-2xl); color:var(--blue-d); }

.container { max-width:1200px; margin:0 auto; padding:0 1.5rem; }

/* ============================================================
   BUTTONS
   ============================================================ */
.btn {
  display:inline-flex; align-items:center; justify-content:center;
  gap:.45rem; padding:.62rem 1.4rem;
  border-radius:var(--r-full); border:2px solid transparent;
  font-family:'IRANYekanX',Tahoma,sans-serif;
  font-size:.875rem; font-weight:700; cursor:pointer;
  white-space:nowrap; transition:var(--tr); letter-spacing:.1px;
  text-decoration:none !important;
}
.btn:active { transform:scale(.97); }

.btn-primary {
  background:var(--blue); color:#fff !important;
  border-color:var(--blue);
  box-shadow:0 4px 12px rgba(26,86,219,.3);
}
.btn-primary:hover {
  background:var(--blue-d); border-color:var(--blue-d);
  box-shadow:0 6px 20px rgba(26,86,219,.4); color:#fff !important;
}
.btn-outline {
  background:transparent; color:var(--blue) !important;
  border-color:var(--blue);
}
.btn-outline:hover {
  background:var(--blue); color:#fff !important;
  box-shadow:0 4px 12px rgba(26,86,219,.25);
}
.btn-outline-white {
  background:transparent; color:#fff !important;
  border-color:rgba(255,255,255,.7);
}
.btn-outline-white:hover {
  background:rgba(255,255,255,.15); color:#fff !important;
  border-color:#fff;
}
.btn-white {
  background:#fff; color:var(--blue) !important;
  border-color:#fff; box-shadow:var(--sh-md);
}
.btn-white:hover { background:var(--slate-50); box-shadow:var(--sh-lg); }
.btn-ghost {
  background:transparent; color:var(--slate-600) !important;
  border-color:transparent;
}
.btn-ghost:hover { background:var(--slate-100); color:var(--slate-800) !important; }
.btn-success { background:var(--green); color:#fff !important; border-color:var(--green); box-shadow:0 4px 12px rgba(22,163,74,.25); }
.btn-success:hover { background:#15803d; color:#fff !important; }
.btn-danger { background:var(--red); color:#fff !important; border-color:var(--red); }
.btn-danger:hover { background:#b91c1c; color:#fff !important; }
.btn-teal { background:var(--teal); color:#fff !important; border-color:var(--teal); box-shadow:0 4px 12px rgba(13,148,136,.25); }

.btn-sm   { padding:.38rem .9rem; font-size:.8rem; }
.btn-lg   { padding:.75rem 2rem; font-size:.95rem; }
.btn-xl   { padding:.9rem 2.5rem; font-size:1rem; }
.btn-block { width:100%; }
.btn:disabled { opacity:.5; cursor:not-allowed; transform:none; pointer-events:none; }

.btn-icon {
  display:inline-flex; align-items:center; justify-content:center;
  width:34px; height:34px; min-width:34px; background:var(--slate-100);
  border:1.5px solid var(--border); border-radius:var(--r);
  cursor:pointer; font-size:1rem; transition:var(--tr); color:var(--slate-500);
  text-decoration:none !important; overflow:hidden; white-space:nowrap;
  position:relative;
}
.btn-icon:hover { background:var(--blue-xl); border-color:var(--blue-2xl); color:var(--blue); text-decoration:none; }
.btn-icon.btn-danger { color:var(--red); }
.btn-icon.btn-danger:hover { background:var(--red-l); border-color:#fca5a5; color:var(--red); }
.btn-icon.btn-danger-icon { color:var(--red); }
.btn-icon.btn-danger-icon:hover { background:var(--red-l); border-color:#fca5a5; }

/* ============================================================
   FORMS
   ============================================================ */
.form-group { margin-bottom:1.1rem; }
.form-group label {
  display:flex; align-items:center; gap:.35rem;
  font-size:.82rem; font-weight:600; margin-bottom:.4rem;
  color:var(--slate-700);
}
.form-group input:not([type="checkbox"]):not([type="radio"]),
.form-group select,
.form-group textarea {
  width:100%; padding:.65rem 1rem;
  border:1.5px solid var(--border); border-radius:var(--r);
  font-size:.9rem; font-family:'IRANYekanX',Tahoma,sans-serif;
  background:var(--white); color:var(--slate-800);
  transition:var(--tr); box-shadow:var(--sh-xs);
  -webkit-appearance:none; appearance:none;
}
.form-group input:not([type="checkbox"]):not([type="radio"]):focus,
.form-group select:focus,
.form-group textarea:focus {
  outline:none; border-color:var(--blue);
  box-shadow:0 0 0 3px rgba(26,86,219,.1);
}
.form-group input:not([type="checkbox"]):not([type="radio"]):hover:not(:focus),
.form-group select:hover:not(:focus),
.form-group textarea:hover:not(:focus) { border-color:var(--slate-300); }
.form-group textarea { resize:vertical; min-height:90px; }
.form-group input[type="file"] {
  padding:.5rem; background:var(--slate-50); cursor:pointer;
  width:100%; border:1.5px solid var(--border); border-radius:var(--r);
  -webkit-appearance:auto; appearance:auto;
}
.form-group input[disabled] { background:var(--slate-100); color:var(--slate-400); cursor:not-allowed; }

/* ---- Checkbox & Radio ---- */
input[type="checkbox"], input[type="radio"] {
  width:17px; height:17px; min-width:17px; max-width:17px;
  padding:0; margin:0; box-shadow:none;
  accent-color:var(--blue); cursor:pointer; flex-shrink:0;
  -webkit-appearance:auto; appearance:auto;
  border:none; background:transparent;
}

/* label با checkbox/radio کنار هم */
.check-label {
  display:inline-flex; align-items:center; gap:.55rem;
  font-weight:500; cursor:pointer; padding:.25rem 0;
  font-size:.875rem; color:var(--slate-700);
}
.check-label:hover { color:var(--blue); }

/* ---- دسترسی‌های ادمین ---- */
.permissions-list {
  display:grid; grid-template-columns:1fr 1fr;
  gap:.15rem; padding:.5rem;
  border:1px solid var(--border); border-radius:var(--r);
  background:var(--slate-50); margin-top:.35rem;
}
.permissions-list .check-label {
  font-size:.82rem; padding:.4rem .6rem;
  border-radius:var(--r-sm); transition:var(--tr);
  white-space:nowrap; display:flex; align-items:center; gap:.45rem;
}
.permissions-list .check-label:hover { background:var(--blue-xl); color:var(--blue); }

.form-row { display:grid; grid-template-columns:1fr 1fr; gap:1rem; }
.form-hint { font-size:.76rem; color:var(--slate-400); margin-top:.3rem; display:block; }
.form-actions { display:flex; gap:.75rem; margin-top:1.5rem; flex-wrap:wrap; align-items:center; }
.req { color:var(--red); }
.label-link { font-weight:400; font-size:.78rem; margin-right:auto; color:var(--blue); }
.input-icon-wrap { position:relative; }
.input-icon-wrap input { padding-left:2.75rem; }
.toggle-pass {
  position:absolute; left:.75rem; top:50%; transform:translateY(-50%);
  background:none; border:none; cursor:pointer; font-size:.95rem;
  color:var(--slate-400); padding:.2rem;
}
.toggle-pass:hover { color:var(--blue); }
.radio-group { display:flex; gap:1.5rem; flex-wrap:wrap; }
.radio-group label { font-weight:500; display:flex; align-items:center; gap:.5rem; cursor:pointer; font-size:.9rem; }

/* inline-form — شارژ دستی، ارسال پیام */
.inline-form { display:flex; gap:.65rem; flex-wrap:wrap; align-items:center; }
.inline-form input {
  flex:1; min-width:120px;
  padding:.6rem .9rem;
  border:1.5px solid var(--border); border-radius:var(--r);
  font-size:.875rem; font-family:'IRANYekanX',Tahoma,sans-serif;
  background:var(--white); color:var(--slate-800);
  transition:var(--tr); box-shadow:var(--sh-xs);
  width:auto;
}
.inline-form input:focus { outline:none; border-color:var(--blue); box-shadow:0 0 0 3px rgba(26,86,219,.1); }
.inline-form .btn { flex-shrink:0; }

/* عنوان داخل page-card */
.page-card h4 {
  font-size:.875rem; font-weight:700; color:var(--slate-700);
  margin-bottom:.85rem; padding-bottom:.65rem;
  border-bottom:1px solid var(--border-l);
}

/* ============================================================
   ALERTS
   ============================================================ */
.alert {
  display:flex; align-items:flex-start; gap:.7rem;
  padding:.85rem 1rem; border-radius:var(--r);
  margin-bottom:1rem; font-size:.875rem;
  border:1px solid; animation:fadeSlide .25s ease;
}
@keyframes fadeSlide { from{opacity:0;transform:translateY(-6px)} to{opacity:1;transform:translateY(0)} }
.alert-success { background:var(--green-l);  color:#14532d; border-color:#86efac; }
.alert-error   { background:var(--red-l);    color:#7f1d1d; border-color:#fca5a5; }
.alert-warning { background:var(--amber-l);  color:#78350f; border-color:#fcd34d; }
.alert-info    { background:var(--blue-2xl); color:#1e40af; border-color:#93c5fd; }

/* ============================================================
   TABLES
   ============================================================ */
.data-table { width:100%; border-collapse:separate; border-spacing:0; font-size:.85rem; }
.data-table th {
  background:var(--slate-50); padding:.7rem 1rem;
  text-align:right; font-weight:600; font-size:.75rem;
  color:var(--slate-500); border-bottom:2px solid var(--border);
  white-space:nowrap; letter-spacing:.3px;
}
.data-table th:first-child { border-radius:0 var(--r-sm) 0 0; }
.data-table th:last-child  { border-radius:var(--r-sm) 0 0 0; }
.data-table td { padding:.8rem 1rem; border-bottom:1px solid var(--border-l); vertical-align:middle; color:var(--slate-600); }
.data-table tbody tr { transition:var(--tr); }
.data-table tbody tr:hover td { background:var(--slate-50); }
.data-table tbody tr:last-child td { border-bottom:none; }
.data-table .actions { display:flex; gap:.35rem; align-items:center; }

/* ============================================================
   BADGES & STATUS
   ============================================================ */
.badge {
  display:inline-flex; align-items:center; justify-content:center;
  background:var(--red); color:#fff; border-radius:var(--r-full);
  min-width:20px; height:20px; font-size:.68rem; font-weight:700; padding:0 5px;
}
.badge-valid    { display:inline-flex; align-items:center; gap:.3rem; background:var(--green-l); color:#14532d; padding:.2rem .65rem; border-radius:var(--r-full); font-size:.75rem; font-weight:600; border:1px solid #86efac; }
.badge-invalid  { display:inline-flex; align-items:center; gap:.3rem; background:var(--red-l); color:#7f1d1d; padding:.2rem .65rem; border-radius:var(--r-full); font-size:.75rem; font-weight:600; border:1px solid #fca5a5; }
.badge-approved { background:var(--green-l); color:#14532d; padding:.2rem .65rem; border-radius:var(--r-full); font-size:.75rem; font-weight:600; display:inline-block; }
.badge-type { padding:.2rem .65rem; border-radius:var(--r-full); font-size:.75rem; font-weight:600; display:inline-flex; align-items:center; }
.badge-type.charge  { background:var(--green-l); color:#14532d; }
.badge-type.consume { background:var(--red-l); color:#7f1d1d; }

.status-badge { display:inline-flex; align-items:center; gap:.4rem; padding:.25rem .8rem; border-radius:var(--r-full); font-size:.78rem; font-weight:600; }
.status-badge::before { content:''; width:7px; height:7px; border-radius:50%; display:inline-block; }
.status-pending  { background:var(--amber-l); color:#78350f; }
.status-pending::before  { background:var(--amber); }
.status-approved { background:var(--green-l); color:#14532d; }
.status-approved::before { background:var(--green); }
.status-rejected { background:var(--red-l); color:#7f1d1d; }
.status-rejected::before { background:var(--red); }

/* ============================================================
   PAGINATION
   ============================================================ */
.pagination { display:flex; gap:.35rem; justify-content:center; flex-wrap:wrap; margin-top:1.5rem; }
.pagination a {
  display:inline-flex; align-items:center; justify-content:center;
  width:36px; height:36px; border-radius:var(--r);
  border:1.5px solid var(--border); font-size:.85rem;
  color:var(--slate-600); transition:var(--tr); background:var(--white);
}
.pagination a:hover { border-color:var(--blue); color:var(--blue); }
.pagination a.active { background:var(--blue); color:#fff; border-color:var(--blue); box-shadow:0 3px 8px rgba(26,86,219,.3); }

/* ============================================================
   PUBLIC HEADER
   ============================================================ */
.site-header {
  background:rgba(255,255,255,.95);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  border-bottom:1px solid var(--border);
  position:sticky; top:0; z-index:100;
}
.site-header .container { display:flex; align-items:center; gap:1.75rem; height:68px; }
.logo {
  display:flex; align-items:center; gap:.65rem;
  font-family:'IranSharp','IRANYekanX',Tahoma,sans-serif;
  font-size:1.25rem; font-weight:700; color:var(--blue);
  flex-shrink:0; text-decoration:none !important;
}
.logo:hover { color:var(--blue-d); }
.main-nav { display:flex; gap:.1rem; flex:1; }
.main-nav a {
  color:var(--slate-600); font-size:.875rem; font-weight:500;
  padding:.42rem .85rem; border-radius:var(--r-full); transition:var(--tr);
}
.main-nav a:hover { background:var(--blue-xl); color:var(--blue); text-decoration:none; }
.header-actions { display:flex; gap:.6rem; flex-shrink:0; align-items:center; }
.nav-toggle { display:none; background:none; border:none; font-size:1.35rem; cursor:pointer; color:var(--slate-700); padding:.4rem; border-radius:var(--r); }

.site-main { padding:2.5rem 0; min-height:calc(100vh - 68px - 200px); }

/* ============================================================
   FOOTER
   ============================================================ */
.site-footer { background:var(--slate-900); color:#94a3b8; padding:3.5rem 0 1.5rem; }
.footer-cols { display:grid; grid-template-columns:2fr 1fr 1fr; gap:3rem; margin-bottom:2.5rem; }
.footer-col h4 { color:#f1f5f9; margin-bottom:1rem; font-size:.9rem; font-family:'IRANYekanX',Tahoma,sans-serif; font-weight:700; }
.footer-col ul { list-style:none; }
.footer-col ul li { margin-bottom:.5rem; }
.footer-col a { color:#94a3b8; font-size:.85rem; transition:var(--tr); }
.footer-col a:hover { color:#fff; }
.footer-col p { font-size:.85rem; margin-bottom:.4rem; line-height:1.8; }
.footer-bottom { border-top:1px solid var(--slate-800); padding-top:1.5rem; font-size:.82rem; text-align:center; display:flex; justify-content:space-between; flex-wrap:wrap; gap:.5rem; }

/* ============================================================
   AUTH PAGES
   ============================================================ */
.auth-wrap { display:flex; justify-content:center; align-items:flex-start; padding:3rem 1rem; min-height:70vh; }
.auth-wrap-wide .auth-box { max-width:640px; }
.auth-box {
  background:var(--white); border-radius:var(--r-xl);
  padding:2.5rem; box-shadow:var(--sh-xl);
  width:100%; max-width:440px;
  border:1px solid var(--border);
}
.auth-header { text-align:center; margin-bottom:2rem; }
.auth-header h2 { font-size:1.5rem; margin-bottom:.4rem; }
.auth-header p { color:var(--slate-500); font-size:.9rem; }
.auth-footer { text-align:center; margin-top:1.5rem; font-size:.875rem; color:var(--slate-500); }

/* ============================================================
   HERO
   ============================================================ */
.hero {
  background:var(--slate-900);
  color:#fff; text-align:center;
  padding:5.5rem 1.5rem 6rem;
  position:relative; overflow:hidden;
}
.hero::before {
  content:''; position:absolute; inset:0;
  background:
    radial-gradient(ellipse 80% 60% at 50% -20%, rgba(26,86,219,.5) 0%, transparent 60%),
    radial-gradient(ellipse 60% 40% at 80% 80%, rgba(13,148,136,.25) 0%, transparent 50%);
}
.hero::after {
  content:''; position:absolute; inset:0;
  background-image:
    linear-gradient(rgba(255,255,255,.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.03) 1px, transparent 1px);
  background-size:60px 60px;
}
.hero-content { position:relative; z-index:1; max-width:700px; margin:0 auto; }
.hero-eyebrow {
  display:inline-flex; align-items:center; gap:.5rem;
  background:rgba(26,86,219,.25); border:1px solid rgba(26,86,219,.4);
  border-radius:var(--r-full); padding:.35rem 1.1rem;
  font-size:.78rem; font-weight:600; margin-bottom:1.75rem;
  color:#93c5fd; letter-spacing:.5px;
}
.hero h1 {
  font-size:3.25rem; font-weight:900; margin-bottom:1.1rem;
  line-height:1.25;
  background:linear-gradient(135deg, #fff 30%, #93c5fd 100%);
  -webkit-background-clip:text; -webkit-text-fill-color:transparent;
  background-clip:text;
}
.hero p { font-size:1.1rem; color:#94a3b8; margin-bottom:2.5rem; line-height:1.85; max-width:520px; margin-right:auto; margin-left:auto; }
.hero-btns { display:flex; gap:.85rem; justify-content:center; flex-wrap:wrap; }

.hero-numbers {
  display:flex; gap:0; justify-content:center;
  margin-top:4.5rem; padding-top:3rem;
  border-top:1px solid rgba(255,255,255,.08);
  position:relative; z-index:1;
}
.hero-num-item {
  flex:1; max-width:180px; text-align:center;
  padding:0 2rem;
  border-left:1px solid rgba(255,255,255,.08);
}
.hero-num-item:last-child { border-left:none; }
.hero-num-item strong { display:block; font-size:2.25rem; font-weight:900; color:#fff; line-height:1.1; margin-bottom:.3rem; }
.hero-num-item span { font-size:.8rem; color:#64748b; font-weight:500; }

/* ============================================================
   COURSE CODE SECTION
   ============================================================ */
.course-code-section {
  background:var(--white); padding:2.25rem 1.5rem;
  border-bottom:1px solid var(--border);
}
.course-code-inner { max-width:600px; margin:0 auto; }
.course-code-label {
  display:flex; align-items:center; gap:.6rem;
  margin-bottom:1rem;
}
.course-code-label h3 { font-size:1.05rem; }
.course-code-label p { font-size:.85rem; color:var(--slate-500); margin-right:.5rem; }
.code-form {
  display:flex; gap:0; align-items:stretch;
  border:2px solid var(--border); border-radius:var(--r-lg);
  overflow:hidden; background:var(--white);
  box-shadow:var(--sh-sm); transition:var(--tr);
}
.code-form:focus-within { border-color:var(--blue); box-shadow:0 0 0 3px rgba(26,86,219,.1); }
.code-form input {
  flex:1; border:none; outline:none; padding:.8rem 1.25rem;
  font-size:.95rem; font-family:'IRANYekanX',Tahoma,sans-serif;
  color:var(--slate-800); background:transparent; min-width:0;
}
.code-form input::placeholder { color:var(--slate-400); }
.code-form .btn {
  border-radius:0; border:none; border-right:2px solid var(--border);
  padding:.8rem 1.5rem; font-size:.875rem; flex-shrink:0;
}

/* ============================================================
   SECTION
   ============================================================ */
.section { padding:4.5rem 0; }
.section-bg { background:var(--slate-50); }
.section-header { text-align:center; margin-bottom:3rem; }
.section-tag {
  display:inline-block; background:var(--blue-xl); color:var(--blue);
  padding:.3rem 1rem; border-radius:var(--r-full);
  font-size:.75rem; font-weight:700; margin-bottom:.8rem; letter-spacing:.5px;
  border:1px solid var(--blue-2xl);
}
.section-header h2 { font-size:1.85rem; color:var(--slate-900); margin-bottom:.6rem; }
.section-header p { color:var(--slate-500); font-size:.95rem; max-width:480px; margin:0 auto; line-height:1.8; }
.section-footer { text-align:center; margin-top:2.5rem; }

/* ============================================================
   TEACHERS GRID
   ============================================================ */
.teachers-grid { display:grid; grid-template-columns:repeat(3,1fr); gap:1.5rem; }
.teacher-card {
  background:var(--white); border:1px solid var(--border);
  border-radius:var(--r-xl); padding:2rem 1.5rem;
  text-align:center; text-decoration:none !important; color:var(--slate-800);
  transition:var(--tr); display:block; position:relative; overflow:hidden;
}
.teacher-card::after {
  content:''; position:absolute; bottom:0; left:0; right:0; height:3px;
  background:linear-gradient(90deg, var(--blue), var(--teal));
  transform:scaleX(0); transition:var(--tr); transform-origin:center;
}
.teacher-card:hover { box-shadow:var(--sh-lg); transform:translateY(-4px); border-color:var(--blue-2xl); }
.teacher-card:hover::after { transform:scaleX(1); }
.teacher-avatar {
  width:76px; height:76px; border-radius:50%;
  overflow:hidden; margin:0 auto .9rem;
  background:linear-gradient(135deg, var(--blue), var(--teal));
  display:flex; align-items:center; justify-content:center;
  box-shadow:0 6px 16px rgba(26,86,219,.2);
}
.teacher-avatar img { width:100%; height:100%; object-fit:cover; }
.teacher-avatar span { color:#fff; font-size:1.85rem; font-weight:800; }
.teacher-card h4 { font-size:.95rem; margin-bottom:.3rem; color:var(--slate-900); }
.teacher-card p { color:var(--slate-500); font-size:.82rem; margin-bottom:.35rem; }
.teacher-card small { color:var(--slate-400); font-size:.75rem; }
.teacher-card-meta { display:flex; gap:.75rem; justify-content:center; margin-top:.75rem; }
.teacher-card-meta span { font-size:.72rem; color:var(--slate-500); background:var(--slate-50); padding:.2rem .6rem; border-radius:var(--r-full); border:1px solid var(--border); }

/* HOW IT WORKS */
.steps-grid { display:grid; grid-template-columns:repeat(4,1fr); gap:2rem; }
.step { text-align:center; padding:1.5rem 1rem; }
.step-num {
  width:56px; height:56px; border-radius:var(--r-xl);
  background:var(--blue); color:#fff;
  font-size:1.25rem; font-weight:900;
  display:flex; align-items:center; justify-content:center;
  margin:0 auto 1.1rem; box-shadow:0 6px 16px rgba(26,86,219,.25);
}
.step h4 { font-size:.95rem; margin-bottom:.45rem; }
.step p { color:var(--slate-500); font-size:.83rem; line-height:1.75; }

/* ============================================================
   VERIFY & CERTIFICATE
   ============================================================ */
.verify-page { display:flex; justify-content:center; padding:2rem 0; }
.verify-box { background:var(--white); border-radius:var(--r-xl); padding:2.5rem; box-shadow:var(--sh-xl); width:100%; max-width:580px; border:1px solid var(--border); }
.verify-box h2 { text-align:center; margin-bottom:.35rem; }
.verify-box > p { text-align:center; color:var(--slate-500); margin-bottom:1.75rem; font-size:.9rem; }
.verify-form {
  display:flex; flex-direction:row; gap:.75rem;
  margin-bottom:1.5rem; align-items:center;
  direction:rtl;
}
.verify-form input {
  flex:1; min-width:0;
  padding:.68rem 1rem; border:1.5px solid var(--border);
  border-radius:var(--r); font-size:.9rem;
  font-family:'IRANYekanX',Tahoma,sans-serif;
  background:var(--white); color:var(--slate-800);
  box-shadow:var(--sh-xs); transition:var(--tr);
}
.verify-form input:focus { outline:none; border-color:var(--blue); box-shadow:0 0 0 3px rgba(26,86,219,.1); }
.verify-form .btn { flex-shrink:0; }
.cert-result { border-radius:var(--r-lg); padding:1.5rem; margin-top:1rem; border:1.5px solid; }
.cert-result.valid   { border-color:#86efac; background:#f0fdf4; }
.cert-result.invalid { border-color:#fca5a5; background:#fef2f2; }
.cert-result-header { display:flex; align-items:center; gap:.75rem; margin-bottom:1.25rem; font-size:1rem; font-weight:700; }
.result-icon { font-size:1.6rem; }
.cert-info-table { width:100%; font-size:.875rem; border-collapse:collapse; }
.cert-info-table td { padding:.5rem .4rem; border-bottom:1px solid var(--border-l); }
.cert-info-table td:first-child { color:var(--slate-500); width:150px; font-weight:500; font-size:.83rem; }
.cert-qr { text-align:center; margin-top:1.25rem; }
.cert-qr img { width:110px; border-radius:var(--r); box-shadow:var(--sh); margin:0 auto; }

.public-cert-page { max-width:660px; margin:0 auto; padding:1rem 0 3rem; }
.cert-card { background:var(--white); border-radius:var(--r-xl); padding:2.5rem; box-shadow:var(--sh-xl); border:1px solid var(--border); position:relative; overflow:hidden; }
.cert-card::before { content:''; position:absolute; top:0; left:0; right:0; height:5px; background:linear-gradient(90deg,var(--blue),var(--teal)); }
.cert-card.invalid::before { background:linear-gradient(90deg,var(--red),#f97316); }
.cert-card-header { text-align:center; margin-bottom:1.5rem; }
.valid-badge   { display:inline-flex; align-items:center; gap:.5rem; background:var(--green-l); color:#14532d; padding:.4rem 1.25rem; border-radius:var(--r-full); font-weight:700; font-size:.85rem; border:1px solid #86efac; }
.invalid-badge { display:inline-flex; align-items:center; gap:.5rem; background:var(--red-l); color:#7f1d1d; padding:.4rem 1.25rem; border-radius:var(--r-full); font-weight:700; font-size:.85rem; border:1px solid #fca5a5; }
.cert-card h2 { text-align:center; font-size:1.35rem; margin:1rem 0 .35rem; }
.cert-student { text-align:center; font-size:.95rem; color:var(--slate-500); margin-bottom:1.5rem; }
.cert-student strong { color:var(--slate-900); font-size:1.1rem; }
.cert-meta-grid { display:grid; grid-template-columns:1fr 1fr; gap:.7rem; margin-bottom:1.25rem; }
.cert-meta-grid div { background:var(--slate-50); padding:.75rem 1rem; border-radius:var(--r); border:1px solid var(--border-l); }
.cert-meta-grid span { display:block; font-size:.7rem; color:var(--slate-400); margin-bottom:.2rem; text-transform:uppercase; letter-spacing:.5px; font-weight:600; }
.cert-meta-grid strong { font-size:.88rem; color:var(--slate-800); }
.cert-qr-box { text-align:center; margin:1.5rem 0; }
.cert-qr-box img { width:120px; border-radius:var(--r); box-shadow:var(--sh-md); margin:0 auto; border:4px solid var(--white); }
.cert-qr-box small { display:block; color:var(--slate-400); font-size:.75rem; margin-top:.5rem; }
.cert-share { display:flex; gap:.75rem; justify-content:center; flex-wrap:wrap; margin-top:1.5rem; }
.cert-teacher { text-align:center; font-size:.85rem; color:var(--slate-500); padding:.75rem; background:var(--slate-50); border-radius:var(--r); margin-bottom:.75rem; }
.cert-desc { text-align:center; color:var(--slate-500); font-size:.875rem; background:var(--slate-50); padding:.75rem 1rem; border-radius:var(--r); margin:.75rem 0; border-right:3px solid var(--blue); }

/* Stars */
.stars { color:#f59e0b; font-size:1rem; margin-bottom:.4rem; letter-spacing:1px; }
.star-rating { display:flex; flex-direction:row-reverse; gap:.25rem; justify-content:flex-end; margin-bottom:1rem; }
.star-rating input { display:none; }
.star-rating label { font-size:1.75rem; color:var(--slate-200); cursor:pointer; transition:var(--tr); }
.star-rating input:checked ~ label, .star-rating label:hover, .star-rating label:hover ~ label { color:#f59e0b; }
.review-item { background:var(--slate-50); padding:1.1rem 1.25rem; border-radius:var(--r-lg); border:1px solid var(--border-l); }
.review-item p { color:var(--slate-600); font-size:.875rem; line-height:1.75; margin:.4rem 0; }
.review-public { background:var(--slate-50); padding:1.25rem; border-radius:var(--r-lg); margin-top:1.25rem; border:1px solid var(--border); }
.review-form-box { background:var(--white); padding:1.75rem; border-radius:var(--r-xl); box-shadow:var(--sh); margin-top:1.75rem; border:1px solid var(--border); }
.review-box { background:var(--slate-50); padding:1.25rem; border-radius:var(--r-lg); border:1px solid var(--border); }
.review-box.approved { border-color:#86efac; background:#f0fdf4; }

/* ============================================================
   TEACHER PROFILE
   ============================================================ */
.teacher-profile-header { display:flex; gap:2rem; align-items:flex-start; background:var(--white); padding:2.5rem; border-radius:var(--r-xl); box-shadow:var(--sh); margin-bottom:1.5rem; border:1px solid var(--border); }
.teacher-avatar-lg { width:110px; height:110px; border-radius:var(--r-xl); overflow:hidden; flex-shrink:0; background:linear-gradient(135deg,var(--blue),var(--teal)); display:flex; align-items:center; justify-content:center; box-shadow:0 8px 20px rgba(26,86,219,.2); }
.teacher-avatar-lg img { width:100%; height:100%; object-fit:cover; }
.teacher-avatar-lg span { color:#fff; font-size:3rem; font-weight:900; }
.teacher-profile-info h1 { font-size:1.65rem; margin-bottom:.35rem; }
.specialty { color:var(--blue); font-weight:600; font-size:.9rem; margin-bottom:.3rem; }
.institution { color:var(--slate-500); font-size:.85rem; margin-bottom:.75rem; }
.teacher-stats { display:flex; gap:.75rem; flex-wrap:wrap; }
.teacher-stats span { font-size:.8rem; color:var(--slate-500); background:var(--slate-50); padding:.3rem .75rem; border-radius:var(--r-full); border:1px solid var(--border); display:flex; align-items:center; gap:.35rem; }
.teacher-bio, .teacher-courses, .teacher-reviews { background:var(--white); padding:2rem; border-radius:var(--r-xl); box-shadow:var(--sh); margin-bottom:1.5rem; border:1px solid var(--border); }
.teacher-bio h3, .teacher-courses h3, .teacher-reviews h3 { margin-bottom:1.25rem; font-size:1.05rem; }
.teacher-bio p { color:var(--slate-600); line-height:1.9; }
.courses-grid { display:grid; grid-template-columns:repeat(2,1fr); gap:1.25rem; }
.course-item { border:1px solid var(--border); border-radius:var(--r-lg); overflow:hidden; transition:var(--tr); }
.course-item:hover { box-shadow:var(--sh-md); border-color:var(--blue-2xl); }
.course-img img { width:100%; height:160px; object-fit:cover; }
.course-item-body { padding:1.25rem; }
.course-item-body h4 { font-size:.9rem; margin-bottom:.35rem; }
.course-item-body p { color:var(--slate-500); font-size:.82rem; margin-bottom:.6rem; }
.course-item-meta { display:flex; gap:.5rem; flex-wrap:wrap; font-size:.75rem; color:var(--slate-500); margin-bottom:.85rem; }
.course-item-meta span { background:var(--slate-50); padding:.15rem .55rem; border-radius:var(--r-full); border:1px solid var(--border); }
.reviews-grid { display:grid; grid-template-columns:repeat(2,1fr); gap:1rem; }

/* ============================================================
   COURSE PAGE
   ============================================================ */
.course-page { max-width:820px; margin:0 auto; }
.course-hero { background:var(--white); border-radius:var(--r-xl); overflow:hidden; box-shadow:var(--sh); margin-bottom:1.5rem; border:1px solid var(--border); }
.course-hero-img img { width:100%; height:260px; object-fit:cover; }
.course-hero-info { padding:1.75rem; }
.course-hero-info h1 { font-size:1.45rem; margin-bottom:.45rem; }
.course-subject { color:var(--blue); font-weight:600; font-size:.88rem; margin-bottom:.75rem; }
.course-meta { display:flex; flex-wrap:wrap; gap:.55rem; margin:.75rem 0; }
.course-meta span { display:flex; align-items:center; gap:.3rem; font-size:.82rem; color:var(--slate-500); background:var(--slate-50); padding:.3rem .75rem; border-radius:var(--r-full); border:1px solid var(--border); }
.course-teacher { font-size:.875rem; color:var(--slate-500); margin-top:.5rem; }
.course-desc { background:var(--white); padding:1.5rem; border-radius:var(--r-lg); margin-bottom:1.5rem; border:1px solid var(--border); }
.course-desc p { color:var(--slate-600); line-height:1.9; }
.register-box { background:var(--white); padding:2rem; border-radius:var(--r-xl); box-shadow:var(--sh); border:1px solid var(--border); }
.register-box h3 { margin-bottom:1.5rem; }
.course-code-page { display:flex; justify-content:center; padding:2rem 0; }

/* CONTENT PAGES */
.content-page { max-width:820px; margin:0 auto; background:var(--white); padding:2.5rem; border-radius:var(--r-xl); box-shadow:var(--sh); border:1px solid var(--border); }
.content-page h2 { margin-bottom:1.5rem; padding-bottom:1rem; border-bottom:2px solid var(--border); }
.content-body { line-height:2; color:var(--slate-600); }
.contact-grid { display:grid; grid-template-columns:1fr 2fr; gap:2rem; margin-top:1rem; }
.contact-info { background:var(--slate-50); padding:1.5rem; border-radius:var(--r-lg); }
.contact-info p { display:flex; align-items:center; gap:.6rem; font-size:.875rem; padding:.5rem 0; border-bottom:1px solid var(--border-l); }
.faq-list .faq-item { padding:1.25rem 0; border-bottom:1px solid var(--border); }
.faq-item h4 { margin-bottom:.5rem; color:var(--blue); font-size:.9rem; }
.faq-item p { color:var(--slate-600); font-size:.875rem; line-height:1.8; }

/* TEACHERS LIST */
.teachers-list-page { }
.page-header { display:flex; justify-content:space-between; align-items:center; margin-bottom:2rem; flex-wrap:wrap; gap:1rem; }
.search-form { display:flex; gap:.5rem; }
.search-form input { padding:.55rem 1rem; border:1.5px solid var(--border); border-radius:var(--r-full); font-family:'IRANYekanX',Tahoma,sans-serif; font-size:.875rem; min-width:220px; background:var(--white); transition:var(--tr); }
.search-form input:focus { border-color:var(--blue); outline:none; box-shadow:0 0 0 3px rgba(26,86,219,.1); }

/* ============================================================
   PANEL LAYOUT
   ============================================================ */
.panel-wrapper { display:flex; min-height:100vh; }

.sidebar {
  width:var(--sidebar-w); background:var(--sidebar-bg);
  display:flex; flex-direction:column; position:fixed;
  top:0; right:0; height:100vh; overflow-y:auto; z-index:200;
  transition:transform .3s cubic-bezier(.4,0,.2,1);
}
.sidebar-admin { background:#030712; }
.sidebar-header { display:flex; justify-content:space-between; align-items:center; padding:1.25rem 1.4rem; border-bottom:1px solid rgba(255,255,255,.06); }
.sidebar-logo { font-family:'IranSharp','IRANYekanX',Tahoma,sans-serif; color:#f1f5f9; font-size:1.05rem; font-weight:700; text-decoration:none !important; display:flex; align-items:center; gap:.6rem; }
.sidebar-logo:hover { color:#fff; }
.sidebar-close { display:none; background:none; border:none; color:#64748b; font-size:1.1rem; cursor:pointer; padding:.3rem; border-radius:var(--r-sm); }
.sidebar-close:hover { color:#fff; background:rgba(255,255,255,.08); }
.sidebar-user { padding:1.1rem 1.4rem; border-bottom:1px solid rgba(255,255,255,.06); display:flex; gap:.85rem; align-items:center; }
.sidebar-user .user-avatar { width:40px; height:40px; border-radius:var(--r); background:linear-gradient(135deg,var(--blue),var(--teal)); display:flex; align-items:center; justify-content:center; font-size:1.05rem; font-weight:700; flex-shrink:0; overflow:hidden; box-shadow:0 3px 8px rgba(26,86,219,.3); }
.sidebar-user .user-avatar img { width:100%; height:100%; object-fit:cover; }
.admin-avatar { background:linear-gradient(135deg,#6366f1,#8b5cf6) !important; }
.user-info { overflow:hidden; }
.user-info strong { display:block; font-size:.855rem; color:#e2e8f0; white-space:nowrap; overflow:hidden; text-overflow:ellipsis; }
.user-info small { font-size:.73rem; color:#475569; }
.sidebar-nav { flex:1; padding:.6rem .75rem; }
.nav-item {
  display:flex; align-items:center; gap:.7rem;
  padding:.62rem .9rem; color:#64748b; font-size:.855rem; font-weight:500;
  text-decoration:none !important; transition:var(--tr); cursor:pointer;
  border:none; background:none; width:100%;
  font-family:'IRANYekanX',Tahoma,sans-serif;
  border-radius:var(--r); margin-bottom:.1rem;
}
.nav-item:hover { background:rgba(255,255,255,.06); color:#e2e8f0; }
.nav-item.active { background:rgba(26,86,219,.2); color:#93c5fd; font-weight:600; }
.nav-icon { font-size:1rem; flex-shrink:0; width:20px; text-align:center; }
.nav-divider { border:none; border-top:1px solid rgba(255,255,255,.06); margin:.5rem 0; }
.nav-logout { color:#f87171 !important; }
.nav-logout:hover { background:rgba(239,68,68,.1) !important; }
.sidebar-footer { padding:.75rem; border-top:1px solid rgba(255,255,255,.06); }
.panel-main { margin-right:var(--sidebar-w); flex:1; display:flex; flex-direction:column; min-width:0; background:var(--bg); }
.panel-topbar { background:var(--white); border-bottom:1px solid var(--border); padding:0 1.75rem; height:62px; display:flex; align-items:center; gap:1rem; position:sticky; top:0; z-index:100; box-shadow:var(--sh-xs); }
.menu-toggle { display:none; background:none; border:none; font-size:1.3rem; cursor:pointer; color:var(--slate-600); padding:.4rem; border-radius:var(--r); }
.menu-toggle:hover { background:var(--slate-100); }
.page-title { font-size:1rem; font-weight:700; flex:1; color:var(--slate-900); }
.topbar-actions { display:flex; align-items:center; gap:.7rem; }
.wallet-badge { display:flex; align-items:center; gap:.4rem; background:var(--green-l); color:#14532d; padding:.32rem .9rem; border-radius:var(--r-full); font-size:.78rem; font-weight:700; text-decoration:none !important; border:1px solid #86efac; transition:var(--tr); }
.wallet-badge.low { background:var(--red-l); color:#7f1d1d; border-color:#fca5a5; }
.wallet-badge:hover { transform:scale(1.03); }
.badge-link { font-size:.75rem; color:var(--amber); font-weight:600; background:var(--amber-l); padding:.28rem .75rem; border-radius:var(--r-full); }
.notif-wrap { position:relative; }
.notif-btn { background:var(--slate-50); border:1.5px solid var(--border); cursor:pointer; font-size:.95rem; padding:.38rem .6rem; border-radius:var(--r); transition:var(--tr); display:flex; align-items:center; gap:.3rem; }
.notif-btn:hover { background:var(--slate-100); }
.notif-dropdown { position:absolute; left:0; top:calc(100% + 8px); background:var(--white); border:1px solid var(--border); border-radius:var(--r-lg); box-shadow:var(--sh-xl); width:320px; z-index:500; max-height:420px; overflow-y:auto; }
.notif-item { display:block; padding:.85rem 1.1rem; border-bottom:1px solid var(--border-l); font-size:.82rem; color:var(--slate-700); text-decoration:none !important; transition:var(--tr); }
.notif-item:hover { background:var(--slate-50); }
.notif-item.unread { background:var(--blue-xl); border-right:3px solid var(--blue); }
.notif-item strong { display:block; margin-bottom:.2rem; color:var(--slate-900); font-size:.84rem; }
.notif-item span { display:block; color:var(--slate-500); line-height:1.5; }
.notif-item small { color:var(--slate-400); font-size:.72rem; margin-top:.25rem; display:block; }
.notif-empty { padding:1.5rem; text-align:center; color:var(--slate-400); font-size:.875rem; }
.panel-content { padding:1.75rem; flex:1; }

/* ============================================================
   DASHBOARD
   ============================================================ */
.stats-grid { display:grid; grid-template-columns:repeat(4,1fr); gap:1.1rem; margin-bottom:1.5rem; }
.stats-grid-5 { grid-template-columns:repeat(5,1fr); }
.stat-card { background:var(--white); border-radius:var(--r-lg); padding:1.3rem 1.4rem; box-shadow:var(--sh-sm); display:flex; align-items:center; gap:.9rem; border:1px solid var(--border); transition:var(--tr); position:relative; overflow:hidden; }
.stat-card:hover { box-shadow:var(--sh-md); transform:translateY(-2px); }
.stat-card.stat-warn { border-right:3px solid var(--amber); }
.stat-icon { font-size:1.6rem; flex-shrink:0; width:48px; height:48px; background:var(--blue-xl); border-radius:var(--r-lg); display:flex; align-items:center; justify-content:center; }
.stat-num { display:block; font-size:1.55rem; font-weight:900; color:var(--slate-900); line-height:1.15; }
.stat-label { font-size:.73rem; color:var(--slate-400); font-weight:500; margin-top:.1rem; }
.stat-action { position:absolute; bottom:.6rem; left:.85rem; font-size:.72rem; color:var(--blue); font-weight:600; }
.dashboard-cols { display:grid; grid-template-columns:1fr 1fr; gap:1.1rem; margin-bottom:1.35rem; }
.dash-box { background:var(--white); border-radius:var(--r-lg); padding:1.4rem; box-shadow:var(--sh-sm); border:1px solid var(--border); }
.dash-box-header { display:flex; justify-content:space-between; align-items:center; margin-bottom:1rem; }
.dash-box-header h3 { font-size:.92rem; font-weight:700; }
.link-more { font-size:.77rem; color:var(--blue); font-weight:600; }
.empty-msg { color:var(--slate-400); font-size:.875rem; padding:2rem 0; text-align:center; }
.quick-actions { background:var(--white); border-radius:var(--r-lg); padding:1.4rem; box-shadow:var(--sh-sm); border:1px solid var(--border); }
.quick-actions h3 { font-size:.92rem; font-weight:700; margin-bottom:1rem; }
.quick-grid { display:grid; grid-template-columns:repeat(3,1fr); gap:.7rem; }
.quick-btn { display:flex; align-items:center; justify-content:center; gap:.45rem; padding:.8rem; background:var(--slate-50); border:1.5px solid var(--border); border-radius:var(--r-lg); font-size:.82rem; color:var(--slate-700); text-decoration:none !important; transition:var(--tr); font-weight:500; }
.quick-btn:hover { background:var(--blue-xl); color:var(--blue); border-color:var(--blue-2xl); transform:translateY(-2px); box-shadow:var(--sh); }

/* PANEL CARDS */
.page-card { background:var(--white); border-radius:var(--r-lg); padding:1.6rem; box-shadow:var(--sh-sm); margin-bottom:1.15rem; border:1px solid var(--border); }
.page-card h2, .page-card h3 { margin-bottom:1.35rem; font-size:.95rem; font-weight:700; }
.page-two-col { display:grid; grid-template-columns:1fr 1.6fr; gap:1.15rem; align-items:start; }
.form-card, .list-card { background:var(--white); border-radius:var(--r-lg); padding:1.4rem; box-shadow:var(--sh-sm); border:1px solid var(--border); }
.form-card h3, .list-card h3 { margin-bottom:1.2rem; font-size:.92rem; font-weight:700; }
.list-header { display:flex; justify-content:space-between; align-items:center; margin-bottom:1rem; flex-wrap:wrap; gap:.6rem; }

/* WALLET */
.wallet-balance-card { background:linear-gradient(135deg,var(--blue) 0%,#1d4ed8 60%,var(--teal) 120%); border-radius:var(--r-xl); padding:1.85rem 2rem; display:flex; justify-content:space-between; align-items:center; margin-bottom:1.5rem; color:#fff; box-shadow:0 10px 28px rgba(26,86,219,.28); position:relative; overflow:hidden; }
.wallet-balance-card::before { content:''; position:absolute; top:-40px; left:-40px; width:180px; height:180px; border-radius:50%; background:rgba(255,255,255,.05); }
.wallet-balance-card.low { background:linear-gradient(135deg,var(--red),#b91c1c); box-shadow:0 10px 28px rgba(220,38,38,.28); }
.balance-label { display:block; font-size:.82rem; opacity:.75; margin-bottom:.3rem; }
.balance-amount { font-size:2rem; font-weight:900; display:block; }
.balance-warn { font-size:.76rem; background:rgba(255,255,255,.18); padding:.22rem .6rem; border-radius:var(--r-full); display:inline-block; margin-top:.4rem; }
.filter-tabs { display:inline-flex; gap:.3rem; margin-bottom:1.25rem; background:var(--slate-100); padding:.3rem; border-radius:var(--r-full); border:1px solid var(--border); }
.tab { padding:.38rem .95rem; border-radius:var(--r-full); font-size:.82rem; color:var(--slate-500); transition:var(--tr); background:transparent; cursor:pointer; border:none; font-family:'IRANYekanX',Tahoma,sans-serif; font-weight:500; text-decoration:none !important; }
.tab:hover { color:var(--slate-700); }
.tab.active { background:var(--white); color:var(--blue); box-shadow:var(--sh-xs); font-weight:600; }
.charge-form { max-width:500px; }
.charge-preview { background:var(--slate-50); border:1px solid var(--border); border-radius:var(--r-lg); padding:1.2rem; margin:1rem 0; }
.preview-row { display:flex; justify-content:space-between; padding:.38rem 0; font-size:.875rem; border-bottom:1px solid var(--border-l); }
.preview-row:last-child { border-bottom:none; }
.gift-row strong { color:var(--green); }
.total-row { font-weight:700; color:var(--slate-900); }
.wallet-hint { background:var(--blue-xl); padding:.72rem 1rem; border-radius:var(--r); font-size:.84rem; margin-bottom:1rem; color:var(--blue-d); border-right:3px solid var(--blue); }
.gift-info { background:#f0fdf4; padding:1.2rem; border-radius:var(--r-lg); margin-bottom:1.65rem; border:1px solid #86efac; }
.gift-info h4 { margin-bottom:.8rem; font-size:.88rem; color:var(--green); }

/* CERTIFICATES */
.cert-detail { background:var(--white); border-radius:var(--r-lg); padding:1.85rem; box-shadow:var(--sh-sm); border:1px solid var(--border); }
.cert-detail-header { display:flex; justify-content:space-between; align-items:flex-start; margin-bottom:1.65rem; flex-wrap:wrap; gap:1rem; padding-bottom:1.2rem; border-bottom:1px solid var(--border); }
.serial-badge { background:var(--slate-100); color:var(--slate-600); padding:.28rem .7rem; border-radius:var(--r-sm); font-family:monospace; font-size:.82rem; font-weight:600; border:1px solid var(--border); }
.cert-actions { display:flex; gap:.7rem; flex-wrap:wrap; }
.cert-info-grid { display:grid; grid-template-columns:repeat(3,1fr); gap:.8rem; margin-bottom:1.2rem; }
.info-item { background:var(--slate-50); padding:.8rem 1rem; border-radius:var(--r); border:1px solid var(--border-l); }
.info-item.full { grid-column:1/-1; }
.info-item span { display:block; font-size:.7rem; color:var(--slate-400); margin-bottom:.2rem; text-transform:uppercase; letter-spacing:.5px; font-weight:600; }
.info-item strong { font-size:.88rem; color:var(--slate-800); }
.issue-tabs { display:inline-flex; gap:.3rem; margin-bottom:1.5rem; background:var(--slate-100); padding:.3rem; border-radius:var(--r-full); border:1px solid var(--border); }

/* COURSES PANEL */
.course-card { background:var(--white); border:1px solid var(--border); border-radius:var(--r-lg); padding:1.2rem 1.35rem; margin-bottom:.8rem; transition:var(--tr); }
.course-card:hover { border-color:var(--blue-2xl); box-shadow:var(--sh-sm); }
.course-card.inactive { opacity:.6; }
.course-card-header { display:flex; justify-content:space-between; align-items:flex-start; margin-bottom:.5rem; }
.course-card-header strong { font-size:.9rem; color:var(--slate-900); }
.course-code { background:var(--blue); color:#fff; padding:.12rem .55rem; border-radius:var(--r-sm); font-size:.7rem; font-family:monospace; margin-right:.45rem; letter-spacing:1px; }
.course-card-actions { display:flex; gap:.3rem; }
.course-card-meta { display:flex; gap:.6rem; font-size:.76rem; color:var(--slate-500); margin-bottom:.5rem; flex-wrap:wrap; }
.course-card-meta span { background:var(--slate-50); padding:.15rem .5rem; border-radius:var(--r-full); border:1px solid var(--border); }
.course-card-footer { display:flex; gap:.85rem; font-size:.76rem; align-items:center; }
.link-sm { color:var(--blue); font-weight:500; }
.embed-code { color:var(--slate-400); cursor:pointer; display:flex; align-items:center; gap:.3rem; }
.embed-code:hover { color:var(--blue); }

/* CHARTS */
.chart-card { background:var(--white); border-radius:var(--r-lg); padding:1.65rem; box-shadow:var(--sh-sm); margin-bottom:1.15rem; border:1px solid var(--border); }
.chart-card h3 { margin-bottom:1.4rem; font-size:.92rem; font-weight:700; }
.bar-chart { display:flex; align-items:flex-end; gap:.55rem; height:170px; padding-bottom:1.75rem; overflow-x:auto; }
.bar-col { display:flex; flex-direction:column; align-items:center; gap:.25rem; flex:1; min-width:42px; }
.bar { background:linear-gradient(180deg,var(--blue-l),var(--blue)); border-radius:5px 5px 0 0; min-height:4px; width:100%; transition:all .4s ease; }
.bar:hover { background:linear-gradient(180deg,var(--blue),var(--blue-d)); }
.bar-val { font-size:.68rem; color:var(--slate-400); font-weight:600; }
.bar-label { font-size:.62rem; color:var(--slate-400); white-space:nowrap; }

/* PROFILE */
.avatar-upload { display:flex; gap:1.2rem; align-items:flex-start; margin-bottom:1.45rem; padding-bottom:1.45rem; border-bottom:1px solid var(--border); }
.avatar-preview { width:84px; height:84px; border-radius:var(--r-xl); background:linear-gradient(135deg,var(--blue),var(--teal)); display:flex; align-items:center; justify-content:center; flex-shrink:0; overflow:hidden; box-shadow:0 6px 16px rgba(26,86,219,.18); }
.avatar-preview img { width:100%; height:100%; object-fit:cover; }
.avatar-placeholder { color:#fff; font-size:2.1rem; font-weight:900; }
.copy-link-box { display:flex; gap:.5rem; margin:.75rem 0; }
.copy-link-box input { flex:1; background:var(--slate-50); }
.embed-box { margin-top:1.2rem; }
.embed-box label { display:block; font-size:.875rem; font-weight:600; margin-bottom:.4rem; color:var(--slate-700); }
.embed-box textarea { width:100%; padding:.7rem 1rem; border:1.5px solid var(--border); border-radius:var(--r); font-family:monospace; font-size:.77rem; background:var(--slate-50); }

/* ADMIN */
.detail-grid { display:grid; grid-template-columns:repeat(3,1fr); gap:.8rem; margin-bottom:1.4rem; }
.teacher-detail-header { display:flex; justify-content:space-between; align-items:flex-start; margin-bottom:1.4rem; flex-wrap:wrap; gap:1rem; padding-bottom:1.2rem; border-bottom:1px solid var(--border); }
.detail-actions { display:flex; gap:.7rem; flex-wrap:wrap; }
.doc-list { list-style:none; }
.doc-list li { padding:.48rem 0; border-bottom:1px solid var(--border-l); font-size:.875rem; }
.template-item { display:flex; align-items:center; gap:.75rem; padding:.8rem 0; border-bottom:1px solid var(--border-l); }
.template-item strong { flex:1; font-size:.88rem; }
.settings-tabs { display:inline-flex; gap:.3rem; margin-bottom:1.65rem; background:var(--slate-100); padding:.3rem; border-radius:var(--r-full); border:1px solid var(--border); flex-wrap:wrap; }
.list-page-header { display:flex; justify-content:space-between; align-items:center; margin-bottom:1.2rem; flex-wrap:wrap; gap:1rem; }

/* MY CERTS */
.my-page { max-width:820px; margin:0 auto; }
.my-cert-card { background:var(--white); border:1px solid var(--border); border-radius:var(--r-lg); padding:1.2rem 1.4rem; display:flex; align-items:center; gap:1.2rem; margin-bottom:.8rem; transition:var(--tr); box-shadow:var(--sh-xs); }
.my-cert-card:hover { box-shadow:var(--sh-md); border-color:var(--blue-2xl); }
.my-cert-info { flex:1; min-width:0; }
.my-cert-info h4 { font-size:.9rem; margin-bottom:.2rem; }
.my-cert-info p { font-size:.82rem; color:var(--slate-500); margin-bottom:.45rem; }
.my-cert-meta { display:flex; gap:.5rem; flex-wrap:wrap; align-items:center; }
.my-cert-meta span, .my-cert-meta code { font-size:.73rem; color:var(--slate-500); background:var(--slate-50); padding:.13rem .5rem; border-radius:var(--r-full); border:1px solid var(--border-l); }
.my-cert-actions { display:flex; gap:.55rem; flex-shrink:0; flex-wrap:wrap; }

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width:1024px) {
  .stats-grid-5 { grid-template-columns:repeat(3,1fr); }
}
@media (max-width:900px) {
  .sidebar { transform:translateX(100%); }
  .sidebar.open { transform:translateX(0); box-shadow:-6px 0 28px rgba(0,0,0,.25); }
  .panel-main { margin-right:0; }
  .menu-toggle { display:block; }
  .sidebar-close { display:block; }
  .stats-grid { grid-template-columns:repeat(2,1fr); }
  .stats-grid-5 { grid-template-columns:repeat(2,1fr); }
  .dashboard-cols { grid-template-columns:1fr; }
  .page-two-col { grid-template-columns:1fr; }
  .cert-info-grid { grid-template-columns:repeat(2,1fr); }
  .detail-grid { grid-template-columns:repeat(2,1fr); }
}
@media (max-width:768px) {
  .hero h1 { font-size:2.1rem; }
  .hero-numbers { gap:0; }
  .hero-num-item { padding:0 1rem; }
  .hero-num-item strong { font-size:1.65rem; }
  .steps-grid { grid-template-columns:repeat(2,1fr); }
  .teachers-grid { grid-template-columns:repeat(2,1fr); }
  .footer-cols { grid-template-columns:1fr; gap:2rem; }
  .main-nav { display:none; position:absolute; top:68px; right:0; left:0; background:var(--white); flex-direction:column; padding:1rem; border-bottom:1px solid var(--border); box-shadow:var(--sh-md); z-index:200; }
  .main-nav.open { display:flex; }
  .nav-toggle { display:block; }
  .course-hero .course-hero-img { display:none; }
  .contact-grid { grid-template-columns:1fr; }
  .courses-grid, .reviews-grid { grid-template-columns:1fr; }
  .quick-grid { grid-template-columns:repeat(2,1fr); }
  .form-row { grid-template-columns:1fr; }
  .teacher-profile-header { flex-direction:column; align-items:center; text-align:center; }
  .teacher-stats { justify-content:center; }
  .my-cert-card { flex-direction:column; align-items:flex-start; }
  .my-cert-actions { width:100%; }
  .footer-bottom { flex-direction:column; text-align:center; }
}
@media (max-width:480px) {
  .container { padding:0 1rem; }
  .hero { padding:3.5rem 1rem; }
  .hero h1 { font-size:1.7rem; }
  .hero-numbers { flex-direction:column; gap:1.25rem; }
  .hero-num-item { border:none; padding:0; }
  .teachers-grid { grid-template-columns:1fr; }
  .steps-grid { grid-template-columns:1fr; }
  .stats-grid { grid-template-columns:1fr 1fr; }
  .data-table th, .data-table td { padding:.55rem .6rem; }
  .cert-meta-grid { grid-template-columns:1fr; }
  .auth-box { padding:1.75rem 1.25rem; }
  .panel-content { padding:1rem; }
  .panel-topbar { padding:0 1rem; }
  .cert-info-grid { grid-template-columns:1fr; }
  .wallet-balance-card { flex-direction:column; gap:1rem; text-align:center; }
}