/* ==========================================================================
   SanoEDU Main Stylesheet - Resets, Design Tokens, Grid and Layouts
   ========================================================================== */

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

:root {
  --bg: #F8FAFC;
  --bg2: #F1F5F9;
  --bg3: #E8F4F4;
  --white: #fff;
  --teal: #0D9488;
  --teal2: #0F766E;
  --teal3: #E6FFFA;
  --tealm: rgba(13, 148, 136, .12);
  --navy: #1E293B;
  --navy2: #0F172A;
  --gold: #D97706;
  --goldbg: #FEF3C7;
  --text: #0F172A;
  --text2: #475569;
  --text3: #94A3B8;
  --border: #E2E8F0;
  --border2: #CBD5E1;
  --ok: #059669;
  --okbg: #D1FAE5;
  --warn: #D97706;
  --warnbg: #FEF3C7;
  --err: #DC2626;
  --errbg: #FEE2E2;
  --info: #2563EB;
  --infobg: #DBEAFE;
  --rsm: 6px;
  --rmd: 10px;
  --rlg: 16px;
  --rxl: 22px;
  --sh1: 0 1px 3px rgba(0,0,0,.06), 0 1px 2px rgba(0,0,0,.04);
  --sh2: 0 4px 12px rgba(0,0,0,.08);
  --sh3: 0 10px 30px rgba(0,0,0,.10);
  --fd: 'Playfair Display', Georgia, serif;
  --fb: 'Inter', -apple-system, sans-serif;
  --ease: cubic-bezier(.22, .61, .36, 1);
  --sw: 252px;
  --sh: 60px;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--fb);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  overflow-x: hidden;
}

a {
  color: inherit;
  text-decoration: none;
}

button {
  font-family: var(--fb);
  cursor: pointer;
  border: none;
  background: none;
}

ul, ol {
  list-style: none;
}

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

input, select, textarea {
  font-family: var(--fb);
}

/* LAYOUT */
.con {
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 24px;
}

.con-sm {
  max-width: 820px;
  margin: 0 auto;
  padding: 0 24px;
}

.con-lg {
  max-width: 1340px;
  margin: 0 auto;
  padding: 0 28px;
}

.page {
  display: none;
  min-height: 100vh;
}

.page.on {
  display: block;
}

/* GRID */
.g2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
}

.g3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}

.g4 {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
}

/* Custom Responsive Grids */
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 32px;
}
.metrics-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
}
.course-grid {
  display: grid;
  grid-template-columns: 1fr 320px;
}
.iprofile-grid {
  display: grid;
  grid-template-columns: 1fr 280px;
  gap: 32px;
}

/* UTILS */
.flex { display: flex; }
.f1 { flex: 1; }
.ac { align-items: center; }
.jsb { justify-content: space-between; }
.tc { text-align: center; }
.tr { text-align: right; }

.mt8 { margin-top: 8px; }
.mt12 { margin-top: 12px; }
.mt16 { margin-top: 16px; }
.mt24 { margin-top: 24px; }
.mt32 { margin-top: 32px; }

.mb8 { margin-bottom: 8px; }
.mb12 { margin-bottom: 12px; }
.mb16 { margin-bottom: 16px; }
.mb24 { margin-bottom: 24px; }

.w100 { width: 100%; }
.muted { color: var(--text3); }
.bold { font-weight: 600; }
.trunc {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.hide { display: none !important; }

/* PUBLIC NAV */
#pubNav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 900;
  overflow: visible;
  transition: background .28s, box-shadow .28s;
}

#pubNav.scrolled {
  background: rgba(255, 255, 255, .96);
  backdrop-filter: blur(14px);
  box-shadow: 0 1px 0 var(--border);
}

#pubNav.dark-nav.scrolled {
  background: rgba(15, 23, 42, .95);
}

.nav-in {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
  max-width: 1340px;
  margin: 0 auto;
  padding: 0 28px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
}

.logo-mark {
  width: 32px;
  height: 32px;
  background: linear-gradient(135deg, var(--teal), #2DD4BF);
  border-radius: 9px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.logo-mark svg {
  width: 17px;
  height: 17px;
}

.logo-text {
  font-family: var(--fd);
  font-size: 1.35rem;
  font-weight: 600;
  color: var(--navy);
}

.logo-text.lt {
  color: #fff;
}

.nav-links {
  display: flex;
  gap: 2px;
}

.nav-lnk {
  padding: 7px 12px;
  border-radius: var(--rsm);
  font-size: .875rem;
  color: var(--text2);
  cursor: pointer;
  transition: all .15s;
}

.nav-lnk:hover, .nav-lnk.on {
  color: var(--teal);
  background: var(--teal3);
}

.nav-lnk.lt {
  color: rgba(255, 255, 255, .7);
}

.nav-lnk.lt:hover {
  color: #fff;
  background: rgba(255, 255, 255, .1);
}

.nav-acts {
  display: flex;
  align-items: center;
  gap: 8px;
}

.ham {
  display: none;
  flex-direction: column;
  gap: 4px;
  padding: 8px;
  cursor: pointer;
  background: rgba(255, 255, 255, .08);
  border: 1px solid rgba(255, 255, 255, .2);
  border-radius: 8px;
  width: 40px;
  height: 40px;
  justify-content: center;
  align-items: center;
}

.ham span {
  display: block;
  width: 19px;
  height: 1.5px;
  background: var(--text2);
  transition: .25s;
}

.ham.lt span {
  background: rgba(255, 255, 255, .75);
}

/* DASHBOARD LAYOUT */
.d-wrap {
  display: flex;
  min-height: 100vh;
}

.d-side {
  width: var(--sw);
  background: var(--navy2);
  position: fixed;
  top: 0;
  left: 0;
  bottom: 0;
  display: flex;
  flex-direction: column;
  z-index: 800;
  overflow-y: auto;
  transition: transform .28s var(--ease);
}

.d-side-hdr {
  padding: 18px 16px 0;
  flex-shrink: 0;
}

.d-logo {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 7px 0;
  cursor: pointer;
}

.d-logo-mark {
  width: 28px;
  height: 28px;
  background: linear-gradient(135deg, var(--teal), #2DD4BF);
  border-radius: 7px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.d-logo-mark svg {
  width: 14px;
  height: 14px;
}

.d-logo-txt {
  font-family: var(--fd);
  font-size: 1.2rem;
  font-weight: 600;
  color: #fff;
}

.d-user {
  padding: 12px;
  margin: 12px 8px 0;
  background: rgba(255, 255, 255, .06);
  border-radius: var(--rmd);
  border: 1px solid rgba(255, 255, 255, .07);
}

.d-user-name {
  font-size: .845rem;
  font-weight: 500;
  color: #fff;
  margin-bottom: 3px;
}

.d-nav {
  padding: 9px 5px;
  flex: 1;
}

.d-grp {
  margin-bottom: 18px;
}

.d-grp-lbl {
  font-size: .62rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: .1em;
  color: rgba(255, 255, 255, .26);
  padding: 0 9px;
  margin-bottom: 3px;
}

.d-item {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 9px;
  border-radius: var(--rmd);
  font-size: .835rem;
  color: rgba(255, 255, 255, .52);
  cursor: pointer;
  transition: all .14s;
}

.d-item svg {
  width: 14px;
  height: 14px;
  flex-shrink: 0;
  opacity: .6;
}

.d-item:hover {
  background: rgba(255, 255, 255, .07);
  color: rgba(255, 255, 255, .88);
}

.d-item:hover svg {
  opacity: 1;
}

.d-item.on {
  background: rgba(13, 148, 136, .18);
  color: #fff;
}

.d-item.on svg {
  opacity: 1;
  stroke: var(--teal);
}

.d-item .nb {
  margin-left: auto;
  background: var(--teal);
  color: #fff;
  font-size: .58rem;
  font-weight: 700;
  padding: 2px 5px;
  border-radius: 100px;
}

.d-foot {
  padding: 9px 5px 14px;
  border-top: 1px solid rgba(255, 255, 255, .06);
  margin-top: auto;
  flex-shrink: 0;
}

.d-main {
  margin-left: var(--sw);
  flex: 1;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.d-bar {
  height: var(--sh);
  background: var(--white);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 22px;
  position: sticky;
  top: 0;
  z-index: 700;
  flex-shrink: 0;
}

.d-bar-title {
  font-size: .95rem;
  font-weight: 600;
  color: var(--text);
}

.d-bar-acts {
  display: flex;
  align-items: center;
  gap: 6px;
}

.d-ib {
  width: 32px;
  height: 32px;
  border-radius: var(--rmd);
  border: 1px solid var(--border);
  background: var(--white);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all .14s;
  position: relative;
}

.d-ib:hover {
  background: var(--bg2);
  border-color: var(--border2);
}

.d-ib svg {
  width: 14px;
  height: 14px;
  stroke: var(--text2);
}

.nb-dot {
  position: absolute;
  top: -3px;
  right: -3px;
  min-width: 14px;
  height: 14px;
  background: var(--err);
  color: #fff;
  border-radius: 100px;
  font-size: .57rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 2px solid var(--white);
  padding: 0 3px;
}

.d-con {
  padding: 22px;
  flex: 1;
}

.d-ph {
  margin-bottom: 22px;
}

.d-ph h1 {
  font-size: 1.3rem;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 3px;
}

.d-ph p {
  font-size: .845rem;
  color: var(--text3);
}

.bc {
  display: flex;
  align-items: center;
  gap: 5px;
  font-size: .74rem;
  color: var(--text3);
  margin-bottom: 6px;
}

.bc a {
  cursor: pointer;
  color: var(--text3);
}

.bc a:hover {
  color: var(--teal);
}

#sideToggle {
  display: none;
}

/* ==========================================================================
   SanoEDU Premium Theme System (Dark Mode Overrides)
   ========================================================================== */
[data-theme="dark"] {
  --bg: #030712;
  --bg2: #0B0F19;
  --bg3: #042F2E;
  --white: #0F172A;
  --navy: #F9FAFB;
  --navy2: #030712;
  --text: #F9FAFB;
  --text2: #9CA3AF;
  --text3: #4B5563;
  --border: #1F2937;
  --border2: #374151;
  --teal3: #115E59;
  --tealm: rgba(20, 184, 166, 0.15);
  --sh1: 0 1px 3px rgba(0,0,0,.5), 0 1px 2px rgba(0,0,0,.4);
  --sh2: 0 4px 20px rgba(0,0,0,.6);
  --sh3: 0 20px 40px rgba(0,0,0,.8);
}

[data-theme="dark"] body {
  background: var(--bg);
  color: var(--text);
}

/* Premium Webkit Scrollbars for Dark Mode */
[data-theme="dark"] ::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}
[data-theme="dark"] ::-webkit-scrollbar-track {
  background: #030712;
}
[data-theme="dark"] ::-webkit-scrollbar-thumb {
  background: #1F2937;
  border-radius: 100px;
}
[data-theme="dark"] ::-webkit-scrollbar-thumb:hover {
  background: #374151;
}

/* Glassmorphism Navigation */
[data-theme="dark"] #pubNav.scrolled {
  background: rgba(3, 7, 18, 0.85) !important;
  backdrop-filter: blur(16px) !important;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05) !important;
}

[data-theme="dark"] #mobileNav {
  background: rgba(3, 7, 18, 0.95) !important;
  border-top: 1px solid rgba(255, 255, 255, 0.05) !important;
}

/* Glassmorphism Modals */
[data-theme="dark"] .modal-wrap {
  background: rgba(0, 0, 0, 0.6) !important;
  backdrop-filter: blur(8px) !important;
}
[data-theme="dark"] .modal {
  background: rgba(15, 23, 42, 0.85) !important;
  backdrop-filter: blur(20px) !important;
  border: 1px solid rgba(255, 255, 255, 0.08) !important;
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.7) !important;
}

/* Premium Card Glows */
[data-theme="dark"] .cc,
[data-theme="dark"] .ic,
[data-theme="dark"] .card {
  background: var(--white);
  border: 1px solid var(--border);
  box-shadow: var(--sh1);
}

[data-theme="dark"] .cc:hover,
[data-theme="dark"] .ic:hover,
[data-theme="dark"] .card-hover:hover {
  box-shadow: 0 12px 30px rgba(20, 184, 166, 0.08), 0 0 0 1px rgba(20, 184, 166, 0.2) !important;
  border-color: rgba(20, 184, 166, 0.3) !important;
  transform: translateY(-2px);
}

[data-theme="dark"] .site-footer {
  background: #02040A;
  border-top-color: #111827;
}

[data-theme="dark"] .tbl th {
  background: #0B0F19;
  border-bottom-color: var(--border);
}

[data-theme="dark"] .tbl td {
  border-bottom-color: var(--border);
}

[data-theme="dark"] .tbl tr:hover td {
  background: #111827;
}

/* Sidebar Dark Styling */
[data-theme="dark"] .d-side {
  background: #030712;
  border-right: 1px solid var(--border);
}

[data-theme="dark"] .d-bar {
  background: #0B0F19;
  border-bottom-color: var(--border);
}

[data-theme="dark"] .d-ib {
  background: #0F172A;
  border-color: var(--border);
}

[data-theme="dark"] .d-ib:hover {
  background: #1E293B;
  border-color: var(--border2);
}

[data-theme="dark"] .d-ib svg {
  stroke: var(--text);
}

[data-theme="dark"] .d-user {
  background: rgba(255, 255, 255, 0.03);
  border-color: rgba(255, 255, 255, 0.05);
}

[data-theme="dark"] .theme-opt {
  color: var(--text2) !important;
}

[data-theme="dark"] .theme-opt:hover {
  background: rgba(20, 184, 166, 0.15);
  color: var(--teal) !important;
}

.theme-opt:hover {
  background: var(--bg2);
  color: var(--teal) !important;
}

/* ==========================================================================
   SanoEDU Premium Theme System (Light Mode Overrides)
   ========================================================================== */

/* Light Mode Overrides for Navigation */
[data-theme="light"] #pubNav {
  background: rgba(255, 255, 255, 0.96) !important;
  backdrop-filter: blur(14px);
  box-shadow: 0 1px 0 var(--border) !important;
}
[data-theme="light"] #pubNav.dark-nav {
  background: rgba(255, 255, 255, 0.96) !important;
}
[data-theme="light"] .nav-lnk.lt, 
[data-theme="light"] #navLoginBtn {
  color: var(--text2) !important;
}
[data-theme="light"] .nav-lnk.lt:hover, 
[data-theme="light"] #navLoginBtn:hover {
  color: var(--teal) !important;
  background: var(--teal3) !important;
}
[data-theme="light"] .logo-text.lt {
  color: var(--navy) !important;
}
[data-theme="light"] .ham.lt span {
  background: var(--text2) !important;
}
[data-theme="light"] #mobileNav {
  background: rgba(255, 255, 255, 0.98) !important;
  border-top-color: var(--border) !important;
}
[data-theme="light"] #mobileNav div {
  color: var(--text2) !important;
  border-bottom-color: var(--border) !important;
}
[data-theme="light"] #mobileNav div:hover {
  background: var(--teal3) !important;
  color: var(--teal) !important;
}
[data-theme="light"] #mobileNavAuth button {
  background: var(--border) !important;
  color: var(--navy) !important;
  border: 1px solid var(--border) !important;
}
[data-theme="light"] #mobileNavAuth button:last-child {
  background: var(--teal) !important;
  color: #fff !important;
  border: none !important;
}

/* Light Mode Overrides for Hero */
[data-theme="light"] .hero {
  background: linear-gradient(135deg, #F8FAFC 0%, #F1F5F9 50%, #E2E8F0 100%) !important;
}
[data-theme="light"] .hero h1 {
  color: var(--navy) !important;
}
[data-theme="light"] .hero p {
  color: var(--text2) !important;
}
[data-theme="light"] .hero span {
  color: var(--text3) !important;
}
[data-theme="light"] .hero-inner button.btn-dk {
  background: var(--white) !important;
  color: var(--text) !important;
  border: 1px solid var(--border) !important;
}
[data-theme="light"] .hero-inner button.btn-dk:hover {
  background: var(--bg2) !important;
}
[data-theme="light"] .hero-inner div[style*="background:rgba(255,255,255,.05)"] {
  background: var(--white) !important;
  border-color: var(--border) !important;
  box-shadow: var(--sh2) !important;
}
[data-theme="light"] .hero-inner div[style*="color:rgba(255,255,255,.3)"],
[data-theme="light"] .hero-inner div[style*="color:rgba(255,255,255,.6)"],
[data-theme="light"] .hero-inner div[style*="color:rgba(255,255,255,.36)"],
[data-theme="light"] .hero-inner span[style*="color:rgba(255,255,255,.45)"] {
  color: var(--text2) !important;
}
[data-theme="light"] .hero-inner div[style*="background:rgba(255,255,255,.06)"] {
  background: var(--bg2) !important;
  border-color: var(--border) !important;
  color: var(--text) !important;
}
[data-theme="light"] .hero-inner div[style*="background:rgba(255,255,255,.06)"]:hover {
  border-color: var(--teal) !important;
}
[data-theme="light"] .hero-inner div[style*="color:#fff"] {
  color: var(--text) !important;
}
[data-theme="light"] .hero-inner div[style*="background:rgba(255,255,255,.06)"] div[style*="color:#fff"] {
  color: var(--text) !important;
}
[data-theme="light"] section[style*="background:linear-gradient(135deg,var(--navy2)"] {
  background: linear-gradient(135deg, var(--bg2), var(--bg)) !important;
}
[data-theme="light"] section[style*="background:linear-gradient(135deg,var(--navy2)"] h2 {
  color: var(--navy) !important;
}
[data-theme="light"] section[style*="background:linear-gradient(135deg,var(--navy2)"] p {
  color: var(--text2) !important;
}
[data-theme="light"] section[style*="background:linear-gradient(135deg,var(--navy2)"] button.btn-dk {
  background: var(--white) !important;
  color: var(--text) !important;
  border: 1px solid var(--border) !important;
}
[data-theme="light"] section[style*="background:linear-gradient(135deg,var(--navy2)"] button.btn-dk:hover {
  background: var(--bg2) !important;
}

/* Light Mode Overrides for Sidebar */
[data-theme="light"] .d-side {
  background: var(--white) !important;
  border-right: 1px solid var(--border) !important;
}
[data-theme="light"] .d-logo-txt {
  color: var(--text) !important;
}
[data-theme="light"] .d-user {
  background: var(--bg2) !important;
  border-color: var(--border) !important;
}
[data-theme="light"] .d-user-name {
  color: var(--text) !important;
}
[data-theme="light"] .d-grp-lbl {
  color: var(--text3) !important;
}
[data-theme="light"] .d-item {
  color: var(--text2) !important;
}
[data-theme="light"] .d-item svg {
  stroke: var(--text2) !important;
}
[data-theme="light"] .d-item:hover {
  background: var(--bg2) !important;
  color: var(--teal) !important;
}
[data-theme="light"] .d-item.on {
  background: var(--teal3) !important;
  color: var(--teal) !important;
}
[data-theme="light"] .d-item.on svg {
  stroke: var(--teal) !important;
}

/* Light Mode Overrides for Footer */
[data-theme="light"] .site-footer {
  background: var(--bg2) !important;
  border-top: 1px solid var(--border) !important;
}
[data-theme="light"] .site-footer .logo-text.lt {
  color: var(--navy) !important;
}
[data-theme="light"] .site-footer p,
[data-theme="light"] .site-footer div[style*="color:rgba(255,255,255"] {
  color: var(--text2) !important;
}
[data-theme="light"] .site-footer span[style*="color:rgba(255,255,255"] {
  color: var(--text3) !important;
}

/* Light Mode Overrides for Learn Page */
[data-theme="light"] .player-layout {
  background: var(--bg) !important;
}
[data-theme="light"] .psidebar {
  background: var(--white) !important;
  border-left: 1px solid var(--border) !important;
}
[data-theme="light"] .psb-hdr {
  background: var(--bg2) !important;
  color: var(--text) !important;
  border-bottom: 1px solid var(--border) !important;
}
[data-theme="light"] .psb-hdr span {
  color: var(--text3) !important;
}
[data-theme="light"] .psb-sec {
  background: var(--bg2) !important;
  color: var(--text2) !important;
  border-bottom: 1px solid var(--border) !important;
  border-top: 1px solid var(--border) !important;
}
[data-theme="light"] .psb-lesson {
  border-bottom: 1px solid var(--border) !important;
  color: var(--text2) !important;
}
[data-theme="light"] .psb-lesson:hover {
  background: var(--bg2) !important;
}
[data-theme="light"] .psb-lesson.on {
  background: var(--teal3) !important;
  color: var(--teal) !important;
}
[data-theme="light"] .psb-ltitle {
  color: var(--text) !important;
}
[data-theme="light"] .psb-lesson.on .psb-ltitle {
  color: var(--teal) !important;
}
[data-theme="light"] .ptabs-bar {
  background: var(--bg2) !important;
  border-bottom: 1px solid var(--border) !important;
}
[data-theme="light"] .ptab {
  color: var(--text2) !important;
}
[data-theme="light"] .ptab:hover {
  color: var(--teal) !important;
}
[data-theme="light"] .ptab.on {
  color: var(--teal) !important;
  border-bottom-color: var(--teal) !important;
}
[data-theme="light"] .pc-area {
  background: var(--white) !important;
  color: var(--text2) !important;
}
[data-theme="light"] .pc-area h3 {
  color: var(--text) !important;
}

/* Premium Wishlist Heart Floating Button Styles */
.wish-btn {
  position: absolute;
  top: 8px;
  right: 8px;
  z-index: 10;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: rgba(15, 23, 42, 0.6);
  backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid rgba(255, 255, 255, 0.15);
  cursor: pointer;
  transition: all 0.2s ease;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.wish-btn:hover {
  transform: scale(1.1);
  background: rgba(15, 23, 42, 0.85);
  border-color: rgba(255, 255, 255, 0.3);
  box-shadow: 0 4px 16px rgba(20, 184, 166, 0.25);
}

.wish-btn:active {
  transform: scale(0.95);
}

[data-theme="light"] .wish-btn {
  background: rgba(255, 255, 255, 0.8);
  backdrop-filter: blur(4px);
  border-color: rgba(0, 0, 0, 0.06);
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.06);
}

[data-theme="light"] .wish-btn:hover {
  background: #ffffff;
  border-color: rgba(20, 184, 166, 0.25);
  box-shadow: 0 4px 14px rgba(20, 184, 166, 0.15);
}