/*!*************************************************************************************************************************************************************************************************************************************************************!*\
  !*** css ./node_modules/next/dist/build/webpack/loaders/css-loader/src/index.js??ruleSet[1].rules[13].oneOf[12].use[2]!./node_modules/next/dist/build/webpack/loaders/postcss-loader/src/index.js??ruleSet[1].rules[13].oneOf[12].use[3]!./app/globals.css ***!
  \*************************************************************************************************************************************************************************************************************************************************************/
@import url('https://fonts.googleapis.com/css2?family=Nunito:wght@400;600;700;800;900&display=swap');
@import url('https://cdn.jsdelivr.net/npm/@tabler/icons-webfont@latest/tabler-icons.min.css');

/* Base Styles */
body {
  font-family: var(--ff), 'Nunito', sans-serif;
  color: var(--vt);
  font-size: 14px;
  background: #f7fbf8;
  margin: 0;
  padding: 0;
}

.vm-site {
  max-width: 960px;
  margin: 0 auto;
  background: #fff;
  min-height: 100vh;
}

/*!*******************************************************************************************************************************************************************************************************************************************************************!*\
  !*** css ./node_modules/next/dist/build/webpack/loaders/css-loader/src/index.js??ruleSet[1].rules[13].oneOf[12].use[2]!./node_modules/next/dist/build/webpack/loaders/postcss-loader/src/index.js??ruleSet[1].rules[13].oneOf[12].use[3]!./app/styles/tokens.css ***!
  \*******************************************************************************************************************************************************************************************************************************************************************/
/* css/tokens.css */
:root {
  /* Core palette */
  --color-primary-900: #0d3320; /* forest */
  --color-primary-700: #1a6b3c; /* vp (pine) */
  --color-primary-500: #2d9e6a; /* vs (leaf) */
  --color-primary-300: #4ecba0; /* mint */
  --color-primary-100: #e8f5ee; /* vgl */
  
  --color-accent-500: #e8521a;  /* va (ember) */
  --color-accent-100: #fff4ef;  /* vol (light orange) */
  
  --color-gold-500: #d4a017;
  --color-gold-100: #fff8e0;    /* vyl */
  
  --color-blue-100: #e8f2fb;    /* vbl */

  /* Text & Border */
  --color-text-main: #1c2b22;   /* vt */
  --color-text-muted: #5a7566;  /* vm */
  --color-border: #d8ece1;      /* border */
  --color-bg: #f4f8f5;
  
  /* Feature Specific */
  --color-zoom: #2D8CFF;
  --color-zoom-bg: #EBF3FF;
  --color-zoom-dark: #1a5ab0;
  
  --color-exam: #7c3aed;
  --color-exam-bg: #f0eeff;
  
  /* Typography */
  --font-body: 'Nunito', sans-serif;
  --font-mono: 'Space Mono', monospace;
  
  /* Deprecated vars used in many files, keeping for smooth transition */
  --vp: var(--color-primary-700);
  --vs: var(--color-primary-500);
  --va: var(--color-accent-500);
  --vt: var(--color-text-main);
  --vm: var(--color-text-muted);
  --vgl: var(--color-primary-100);
  --vol: var(--color-accent-100);
  --vbl: var(--color-blue-100);
  --vyl: var(--color-gold-100);
  --border: var(--color-border);
  --zoom: var(--color-zoom);
  --zoom-bg: var(--color-zoom-bg);
  --zoom-dark: var(--color-zoom-dark);
  --hw: var(--color-accent-500);
  --hw-bg: var(--color-accent-100);
  --exam: var(--color-exam);
  --exam-bg: var(--color-exam-bg);
  --cert: #d97706; 
  --cert-bg: var(--color-gold-100);
  
  --ff: var(--font-body);
  --fm: var(--font-mono);
  
  /* Landing page vars */
  --forest: var(--color-primary-900);
  --pine: var(--color-primary-700);
  --leaf: var(--color-primary-500);
  --mint: var(--color-primary-300);
  --cream: #f5f0e8;
  --warm: #fff8f0;
  --sand: #e8dcc8;
  --ember: var(--color-accent-500);
  --gold: var(--color-gold-500);
  --sky: var(--color-primary-100);
  --ink: var(--color-text-main);
  --mist: var(--color-text-muted);
  --ff-display: 'Playfair Display', serif;
  --ff-body: var(--font-body);
  --ff-mono: var(--font-mono);
}

/* Accessibility */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

/*!*******************************************************************************************************************************************************************************************************************************************************************!*\
  !*** css ./node_modules/next/dist/build/webpack/loaders/css-loader/src/index.js??ruleSet[1].rules[13].oneOf[12].use[2]!./node_modules/next/dist/build/webpack/loaders/postcss-loader/src/index.js??ruleSet[1].rules[13].oneOf[12].use[3]!./app/styles/layout.css ***!
  \*******************************************************************************************************************************************************************************************************************************************************************/
/* css/layout.css */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

body { 
  font-family: var(--font-body); 
  color: var(--color-text-main); 
  background: var(--color-bg); 
  font-size: 14px; 
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

.page { 
  max-width: 960px; 
  margin: 0 auto; 
}

/* Full width page for landing */
.page-full {
  width: 100%;
}

/* TOP NAV */
.topnav { 
  background: var(--color-primary-700); 
  display: flex; 
  align-items: center; 
  justify-content: space-between; 
  padding: 0 20px; 
  height: 52px; 
  position: -webkit-sticky; 
  position: sticky;
  top: 0;
  z-index: 100;
}
.tn-logo { color: #fff; font-weight: 900; font-size: 16px; text-decoration: none; display: flex; align-items: center;}
.tn-logo span { color: #ffcf54; }
.tn-right { display: flex; align-items: center; gap: 10px; margin-left: auto; }
.tn-back { color: rgba(255,255,255,0.8); font-size: 13px; text-decoration: none; display: flex; align-items: center; gap: 5px; }
.tn-back:hover { color: #fff; }
.tn-avatar { 
  width: 34px; height: 34px; border-radius: 50%; background: #ffcf54; 
  display: flex; align-items: center; justify-content: center; 
  font-weight: 900; font-size: 13px; color: var(--color-primary-700); 
  border: 2px solid rgba(255,255,255,0.3); 
}

/* MAIN LAYOUT WITH SIDEBAR */
.body-wrap { 
  display: grid; 
  grid-template-columns: 220px 1fr; /* Default sidebar width */
  min-height: calc(100vh - 52px); 
}

/* ADMIN/DASHBOARD SIDEBAR */
.sidebar { 
  background: #fff; 
  border-right: 1px solid var(--color-border); 
  padding: 20px 0; 
  display: flex;
  flex-direction: column;
}
.sb-item { 
  display: flex; align-items: center; gap: 9px; 
  padding: 9px 16px; cursor: pointer; font-size: 13px; font-weight: 600; 
  color: var(--color-text-muted); border-left: 3px solid transparent; 
  transition: all 0.12s; text-decoration: none;
  background: none; border-top: none; border-right: none; border-bottom: none;
  width: 100%; text-align: left; font-family: inherit;
}
.sb-item:hover, .sb-item:focus-visible { background: var(--color-primary-100); color: var(--color-text-main); outline: none; }
.sb-item.active { background: var(--color-primary-100); color: var(--color-primary-700); border-left-color: var(--color-primary-700); font-weight: 700; }
.sb-item i { font-size: 17px; flex-shrink: 0; }
.sb-badge { margin-left: auto; background: var(--color-accent-500); color: #fff; font-size: 10px; font-weight: 700; padding: 1px 6px; border-radius: 8px; }
.sb-section-label, .sb-label { font-size: 10px; font-weight: 800; color: var(--color-text-muted); text-transform: uppercase; letter-spacing: 0.8px; padding: 12px 16px 4px; }

/* FOCUS STATES FOR ACCESSIBILITY */
a:focus-visible, button:focus-visible, input:focus-visible, select:focus-visible, textarea:focus-visible {
  outline: 2px solid var(--color-accent-500);
  outline-offset: 2px;
}

/* RESPONSIVE LAYOUT */
.mobile-menu-btn {
  display: none;
  background: transparent;
  border: none;
  color: #fff;
  font-size: 24px;
  cursor: pointer;
  margin-right: 12px;
  padding: 4px;
}

@media (max-width: 768px) {
  .mobile-menu-btn {
    display: flex;
    align-items: center;
    justify-content: center;
  }
  .body-wrap {
    grid-template-columns: 1fr;
    position: relative;
  }
  .sidebar {
    position: fixed;
    top: 52px;
    left: -260px; /* Hide offscreen */
    width: 260px;
    height: calc(100vh - 52px);
    z-index: 90;
    transition: left 0.3s ease;
    box-shadow: 2px 0 10px rgba(0,0,0,0.1);
  }
  .sidebar-open .sidebar {
    left: 0;
  }
  /* Optional overlay when sidebar is open */
  .sidebar-open::before {
    content: '';
    position: fixed;
    top: 52px; left: 0; right: 0; bottom: 0;
    background: rgba(0,0,0,0.4);
    z-index: 85;
  }
  .topnav {
    padding: 0 10px;
  }
  .tn-back span {
    display: none; /* Hide text on mobile, keep icon */
  }
}

/*!***********************************************************************************************************************************************************************************************************************************************************************!*\
  !*** css ./node_modules/next/dist/build/webpack/loaders/css-loader/src/index.js??ruleSet[1].rules[13].oneOf[12].use[2]!./node_modules/next/dist/build/webpack/loaders/postcss-loader/src/index.js??ruleSet[1].rules[13].oneOf[12].use[3]!./app/styles/components.css ***!
  \***********************************************************************************************************************************************************************************************************************************************************************/
/* css/components.css */

/* BUTTONS */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 6px;
  font-family: var(--font-body); font-weight: 700; font-size: 14px;
  border-radius: 8px; border: none; cursor: pointer; transition: all 0.15s;
  text-decoration: none; padding: 8px 16px;
}
.btn-primary { background: var(--color-primary-700); color: #fff; }
.btn-primary:hover { background: var(--color-primary-500); }
.btn-outline { background: #fff; color: var(--color-primary-700); border: 1.5px solid var(--color-border); }
.btn-outline:hover { background: var(--color-primary-100); border-color: var(--color-primary-500); }
.btn-accent { background: var(--color-accent-500); color: #fff; }
.btn-accent:hover { opacity: 0.9; }

/* CARDS */
.card { 
  background: #fff; 
  border: 1px solid var(--color-border); 
  border-radius: 12px; 
  margin-bottom: 16px; 
  overflow: hidden; 
}
.card-header { 
  padding: 16px 20px; 
  border-bottom: 1px solid var(--color-border); 
  display: flex; align-items: center; justify-content: space-between; 
}
.card-title { 
  font-size: 15px; font-weight: 800; color: var(--color-text-main); 
  display: flex; align-items: center; gap: 8px; 
}
.card-title i { font-size: 18px; color: var(--color-primary-700); }
.card-body { padding: 20px; }

/* BADGES */
.badge {
  font-size: 10px; font-weight: 800; padding: 2px 7px; border-radius: 6px; white-space: nowrap;
}

/* TOAST NOTIFICATIONS */
.toast { 
  position: fixed; bottom: 24px; right: 24px; 
  background: var(--color-primary-700); color: #fff; 
  padding: 12px 18px; border-radius: 10px; 
  font-size: 13px; font-weight: 700; 
  display: flex; align-items: center; gap: 8px; 
  transform: translateY(80px); opacity: 0; transition: all 0.3s; z-index: 1000; 
}
.toast.show { transform: translateY(0); opacity: 1; }

/* FORMS */
.form-group { display: flex; flex-direction: column; gap: 6px; margin-bottom: 16px; }
.form-label { font-size: 12px; font-weight: 700; color: var(--color-text-muted); }
.form-input { 
  font-size: 14px; padding: 10px 14px; 
  border: 1.5px solid var(--color-border); border-radius: 8px; 
  font-family: var(--font-body); color: var(--color-text-main);
  background: #fff; outline: none; transition: border-color 0.15s; 
}
.form-input:focus { border-color: var(--color-primary-500); }

/*!*********************************************************************************************************************************************************************************************************************************************************************!*\
  !*** css ./node_modules/next/dist/build/webpack/loaders/css-loader/src/index.js??ruleSet[1].rules[13].oneOf[12].use[2]!./node_modules/next/dist/build/webpack/loaders/postcss-loader/src/index.js??ruleSet[1].rules[13].oneOf[12].use[3]!./app/styles/homepage.css ***!
  \*********************************************************************************************************************************************************************************************************************************************************************/
/* NAV */
.nav { background: var(--vp); padding: 0 24px; display: flex; align-items: center; justify-content: space-between; height: 56px; }
.nav-logo { display: flex; align-items: center; gap: 10px; }
.nav-logo .logo-icon { width: 38px; height: 38px; background: #fff; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-weight: 900; font-size: 15px; color: var(--vp); border: 2px solid var(--vs); }
.nav-logo .brand-name { color: #fff; font-weight: 800; font-size: 17px; letter-spacing: -0.3px; }
.nav-logo .brand-name span { color: #ffcf54; }
.nav-menu { display: flex; gap: 4px; align-items: center; }
.nav-menu a { color: rgba(255,255,255,0.85); font-size: 13px; padding: 6px 10px; border-radius: 6px; cursor: pointer; text-decoration: none; transition: background 0.15s; }
.nav-menu a:hover, .nav-menu a.active { background: rgba(255,255,255,0.15); color: #fff; }
.nav-cta { background: var(--va); color: #fff !important; font-weight: 700 !important; border-radius: 6px !important; padding: 7px 14px !important; }

/* HERO */
.hero { background: var(--vp); padding: 52px 40px 44px; position: relative; overflow: hidden; }
.hero::before { content: ''; position: absolute; right: -40px; top: -40px; width: 300px; height: 300px; background: radial-gradient(circle, rgba(255,255,255,0.06) 0%, transparent 70%); border-radius: 50%; }
.hero-badge { display: inline-block; background: rgba(255,207,84,0.2); color: #ffcf54; font-size: 12px; font-weight: 700; padding: 4px 12px; border-radius: 20px; margin-bottom: 14px; border: 1px solid rgba(255,207,84,0.3); }
.hero h1 { color: #fff; font-size: 30px; font-weight: 900; line-height: 1.2; margin-bottom: 10px; }
.hero h1 span { color: #ffcf54; }
.hero p { color: rgba(255,255,255,0.78); font-size: 14px; line-height: 1.6; max-width: 520px; margin-bottom: 24px; }
.hero-btns { display: flex; gap: 10px; flex-wrap: wrap; }
.btn-primary { background: var(--va); color: #fff; padding: 10px 22px; border-radius: 8px; font-weight: 700; font-size: 14px; border: none; cursor: pointer; font-family: var(--ff); }
.btn-outline { background: rgba(255,255,255,0.12); color: #fff; padding: 10px 20px; border-radius: 8px; font-weight: 600; font-size: 14px; border: 1px solid rgba(255,255,255,0.3); cursor: pointer; font-family: var(--ff); }
.hero-stats { display: flex; gap: 28px; margin-top: 28px; flex-wrap: wrap; }
.stat-item .stat-num { color: #ffcf54; font-size: 22px; font-weight: 900; }
.stat-item .stat-label { color: rgba(255,255,255,0.65); font-size: 11px; margin-top: 1px; }

/* SECTIONS */
.section { padding: 32px 24px; }
.section-alt { background: var(--vgl); }
.sec-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: 20px; }
.sec-title { font-size: 18px; font-weight: 800; color: var(--vp); }
.sec-title span { color: var(--va); }
.sec-link { color: var(--vs); font-size: 13px; font-weight: 600; cursor: pointer; text-decoration: none; }
.tag-row { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 16px; }
.tag { padding: 5px 12px; border-radius: 20px; font-size: 12px; font-weight: 600; cursor: pointer; border: 1.5px solid transparent; font-family: var(--ff); }
.tag.active, .tag:hover { background: var(--vp); color: #fff; border-color: var(--vp); }
.tag:not(.active) { background: #fff; color: var(--vp); border-color: #c2e0ce; }
.divider { height: 1px; background: #d8ece1; }

/* COURSES */
.courses-grid { 
  display: grid; 
  grid-template-columns: repeat(3, minmax(0, 1fr)); 
  grid-gap: 20px; 
  gap: 20px; 
}

@media (max-width: 768px) {
  .courses-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 16px;
  }
}

@media (max-width: 500px) {
  .courses-grid {
    grid-template-columns: minmax(0, 1fr);
    gap: 16px;
  }
}

.course-card { 
  background: #fff; 
  border: 1px solid #d8ece1; 
  border-radius: var(--radius-lg); 
  overflow: hidden; 
  cursor: pointer; 
  transition: all 0.2s ease; 
  text-decoration: none; 
  color: inherit; 
  display: flex;
  flex-direction: column;
  height: 100%;
  width: 100%;
  max-width: 290px;
  margin: 0 auto;
}

.course-card:hover { 
  box-shadow: 0 6px 24px rgba(26, 107, 60, 0.15); 
  transform: translateY(-2px);
}

.course-thumb { 
  height: 140px; 
  position: relative; 
  display: flex; 
  align-items: center; 
  justify-content: center; 
  font-size: 40px; 
}
.course-thumb.green { background: var(--vgl); }
.course-thumb.orange { background: var(--vol); }
.course-thumb.blue { background: var(--vbl); }
.badge-type { position: absolute; top: 8px; right: 8px; padding: 3px 8px; border-radius: 12px; font-size: 10px; font-weight: 700; }
.badge-video { background: #fff3e8; color: var(--va); border: 1px solid #fbc9a8; }
.badge-zoom { background: var(--vgl); color: var(--vp); border: 1px solid #b8dfc8; }
.badge-free { background: var(--vyl); color: #b07800; border: 1px solid #f0d070; }
.course-body { 
  padding: 16px; 
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}
.course-title { 
  font-size: 15px; 
  font-weight: 700; 
  color: var(--vt); 
  margin-bottom: 8px; 
  line-height: 1.4; 
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  height: 2.8em;
}
.course-meta { 
  font-size: 13px; 
  color: var(--vm); 
  margin-bottom: 16px; 
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.course-footer { 
  display: flex; 
  align-items: center; 
  justify-content: space-between; 
  margin-top: auto;
}
.price-tag { font-size: 15px; font-weight: 800; color: var(--va); }
.price-free { color: var(--vs); }
.enroll-btn { background: var(--vp); color: #fff; padding: 5px 12px; border-radius: 6px; font-size: 12px; font-weight: 700; border: none; cursor: pointer; font-family: var(--ff); }

/* FOOTER */
.footer { background: var(--vp); color: rgba(255,255,255,0.75); padding: 28px 24px 20px; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr; grid-gap: 24px; gap: 24px; margin-bottom: 20px; }
@media (max-width: 600px) { .footer-grid { grid-template-columns: 1fr; } }
.footer h4 { color: #fff; font-size: 14px; font-weight: 700; margin-bottom: 10px; }
.footer p, .footer a { font-size: 12px; line-height: 1.7; color: rgba(255,255,255,0.65); text-decoration: none; display: block; }
.footer a:hover { color: #ffcf54; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,0.15); padding-top: 14px; font-size: 11px; color: rgba(255,255,255,0.4); text-align: center; }

/*!**************************************************************************************************************************************************************************************************************************************************************************!*\
  !*** css ./node_modules/next/dist/build/webpack/loaders/css-loader/src/index.js??ruleSet[1].rules[13].oneOf[12].use[2]!./node_modules/next/dist/build/webpack/loaders/postcss-loader/src/index.js??ruleSet[1].rules[13].oneOf[12].use[3]!./app/styles/course-detail.css ***!
  \**************************************************************************************************************************************************************************************************************************************************************************/
/* TOP BAR */
.top-bar { background: var(--vp); padding: 10px 20px; display: flex; align-items: center; gap: 8px; }
.top-bar a { color: rgba(255,255,255,0.7); font-size: 12px; text-decoration: none; }
.top-bar a:hover { color: #ffcf54; }
.top-bar .sep { color: rgba(255,255,255,0.35); font-size: 12px; }
.top-bar .cur { color: #fff; font-size: 12px; font-weight: 700; }

/* HERO */
.hero-course { background: var(--vp); padding: 20px 20px 0; }
.hero-course h1 { color: #fff; font-size: 22px; font-weight: 900; line-height: 1.25; margin-bottom: 8px; }
.hero-course .subtitle { color: rgba(255,255,255,0.75); font-size: 13px; margin-bottom: 12px; line-height: 1.5; }
.meta-row { display: flex; gap: 14px; align-items: center; flex-wrap: wrap; padding-bottom: 16px; }
.meta-item { display: flex; align-items: center; gap: 5px; font-size: 12px; color: rgba(255,255,255,0.8); }
.meta-item i { font-size: 15px; }
.badge-xl { background: rgba(232,82,26,0.9); color: #fff; font-size: 11px; font-weight: 700; padding: 3px 10px; border-radius: 12px; }

/* LAYOUT */
.main-layout { display: grid; grid-template-columns: minmax(0, 1fr) 280px; grid-gap: 0; gap: 0; align-items: start; }
@media (max-width: 700px) { .main-layout { grid-template-columns: 1fr; } }

/* VIDEO PLAYER */
.video-player { background: #0d1f17; position: relative; aspect-ratio: 16/9; display: flex; align-items: center; justify-content: center; cursor: pointer; }
.play-btn { width: 64px; height: 64px; background: rgba(255,255,255,0.15); border-radius: 50%; display: flex; align-items: center; justify-content: center; border: 2px solid rgba(255,255,255,0.4); transition: background 0.2s; }
.video-player:hover .play-btn { background: rgba(255,255,255,0.25); }
.play-btn i { font-size: 28px; color: #fff; margin-left: 4px; }
.vid-overlay { position: absolute; bottom: 0; left: 0; right: 0; background: rgba(0,0,0,0.6); padding: 10px 14px; display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.vid-title { color: #fff; font-size: 13px; font-weight: 700; flex: 1 1; }
.vid-progress { display: flex; align-items: center; gap: 8px; flex-shrink: 0; }
.vid-progress span { color: rgba(255,255,255,0.7); font-size: 11px; white-space: nowrap; }
.prog-bar { width: 100px; height: 4px; background: rgba(255,255,255,0.2); border-radius: 2px; }
.prog-fill { height: 100%; width: 35%; background: var(--va); border-radius: 2px; }

/* TABS */
.tab-nav { display: flex; border-bottom: 1.5px solid #d8ece1; padding: 0 16px; background: #fff; overflow-x: auto; }
.tab-btn { padding: 12px 14px; font-size: 13px; font-weight: 700; color: var(--vm); border: none; background: none; cursor: pointer; border-bottom: 2.5px solid transparent; margin-bottom: -1.5px; white-space: nowrap; font-family: var(--ff); }
.tab-btn.active { color: var(--vp); border-bottom-color: var(--vp); }
.tab-btn:hover:not(.active) { color: var(--vt); }
.tab-pane { padding: 16px; background: #fff; display: none; }
.tab-pane.active { display: block; }

/* LESSONS */
.lesson-group { margin-bottom: 12px; }
.lg-header { background: var(--vgl); border: 1px solid #c2e0ce; border-radius: 8px; padding: 10px 14px; display: flex; align-items: center; justify-content: space-between; cursor: pointer; }
.lg-title { font-size: 13px; font-weight: 800; color: var(--vp); }
.lg-meta { font-size: 11px; color: var(--vm); }
.lesson-list { border: 1px solid #d8ece1; border-top: none; border-radius: 0 0 8px 8px; overflow: hidden; }
.lesson-item { display: flex; align-items: center; gap: 10px; padding: 9px 14px; border-bottom: 0.5px solid #edf5f0; cursor: pointer; transition: background 0.12s; }
.lesson-item:last-child { border-bottom: none; }
.lesson-item:hover:not(.locked):not(.playing) { background: #f5faf7; }
.lesson-item.playing { background: var(--vgl); }
.lesson-item.locked { opacity: 0.55; cursor: default; }
.li-icon { width: 28px; height: 28px; border-radius: 50%; display: flex; align-items: center; justify-content: center; flex-shrink: 0; font-size: 13px; }
.li-icon.done { background: #d0f0e0; color: var(--vs); }
.li-icon.play { background: var(--vp); color: #fff; }
.li-icon.lock { background: #f0f0f0; color: #aaa; }
.li-title { flex: 1 1; font-size: 13px; color: var(--vt); font-weight: 600; }
.playing .li-title { color: var(--vp); }
.li-dur { font-size: 11px; color: var(--vm); white-space: nowrap; }
.playing .li-dur { color: var(--vp); font-weight: 700; }
.li-free { background: var(--vyl); color: #b07800; font-size: 10px; font-weight: 700; padding: 2px 6px; border-radius: 8px; white-space: nowrap; }

/* DOCS TAB */
.doc-section { margin-bottom: 16px; }
.doc-sec-title { font-size: 13px; font-weight: 800; color: var(--vp); margin-bottom: 8px; display: flex; align-items: center; gap: 6px; }
.doc-item { display: flex; align-items: center; gap: 10px; padding: 9px 12px; border: 1px solid #d8ece1; border-radius: 8px; margin-bottom: 6px; cursor: pointer; transition: background 0.12s; }
.doc-item:hover { background: var(--vgl); }
.doc-ico { width: 32px; height: 32px; border-radius: 6px; display: flex; align-items: center; justify-content: center; font-size: 16px; flex-shrink: 0; }
.doc-ico.pdf { background: #fee; color: #c0392b; }
.doc-ico.ppt { background: #fff0e8; color: #e67e22; }
.doc-ico.doc { background: var(--vbl); color: #1a7ab0; }
.doc-ico.zip { background: #f5f0ff; color: #8e44ad; }
.doc-name { flex: 1 1; font-size: 13px; font-weight: 600; color: var(--vt); }
.doc-size { font-size: 11px; color: var(--vm); }
.dl-btn { background: var(--vp); color: #fff; border: none; padding: 5px 10px; border-radius: 6px; font-size: 11px; font-weight: 700; cursor: pointer; display: flex; align-items: center; gap: 4px; font-family: var(--ff); white-space: nowrap; }
.dl-btn:hover { background: var(--vs); }

/* HOMEWORK TAB */
.filter-row { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 12px; }
.filter-btn { padding: 5px 14px; border-radius: 20px; border: 1.5px solid #d8ece1; background: #fff; color: var(--vm); font-size: 12px; font-weight: 600; cursor: pointer; font-family: var(--ff); transition: all 0.12s; }
.filter-btn.active, .filter-btn:hover { background: var(--vp); color: #fff; border-color: var(--vp); }
.quiz-item { border: 1px solid #d8ece1; border-radius: 10px; margin-bottom: 10px; overflow: hidden; }
.quiz-header { padding: 11px 14px; display: flex; align-items: center; justify-content: space-between; gap: 8px; }
.quiz-title { font-size: 13px; font-weight: 700; color: var(--vt); flex: 1 1; }
.quiz-badge { font-size: 11px; padding: 3px 8px; border-radius: 10px; font-weight: 700; white-space: nowrap; }
.qb-hw { background: var(--vol); color: #a04000; }
.qb-exam { background: var(--vbl); color: #1a4a80; }
.qb-ans { background: var(--vgl); color: var(--vp); }
.quiz-meta { font-size: 11px; color: var(--vm); padding: 0 14px 10px; }
.quiz-actions { padding: 0 14px 11px; display: flex; gap: 8px; flex-wrap: wrap; }
.qa-btn { padding: 6px 14px; border-radius: 6px; font-size: 12px; font-weight: 700; border: none; cursor: pointer; font-family: var(--ff); display: flex; align-items: center; gap: 4px; }
.qa-start { background: var(--vp); color: #fff; }
.qa-start:hover { background: var(--vs); }
.qa-ans { background: #fff; color: var(--vp); border: 1.5px solid var(--vp) !important; }
.qa-ans:hover { background: var(--vgl); }

/* ABOUT TAB */
.about-box { background: var(--vgl); border-radius: 10px; padding: 14px 16px; margin-bottom: 12px; }
.about-box-title { font-size: 13px; font-weight: 800; color: var(--vp); margin-bottom: 8px; }
.about-box-list { font-size: 13px; color: var(--vt); line-height: 2.1; }

/* SIDEBAR */
.sidebar { border-left: 1px solid #d8ece1; background: #fff; }
.buy-box { padding: 18px 16px; border-bottom: 1px solid #d8ece1; }
.price-big { font-size: 26px; font-weight: 900; color: var(--va); }
.price-old { font-size: 14px; color: var(--vm); text-decoration: line-through; margin-left: 8px; }
.discount-pill { background: var(--vol); color: var(--va); font-size: 11px; font-weight: 700; padding: 2px 8px; border-radius: 10px; margin-left: 6px; }
.buy-btn { width: 100%; padding: 12px; background: var(--va); color: #fff; border: none; border-radius: 8px; font-size: 15px; font-weight: 800; cursor: pointer; margin: 12px 0 6px; font-family: var(--ff); transition: background 0.15s; }
.buy-btn:hover { background: #c94418; }
.try-btn { width: 100%; padding: 10px; background: #fff; color: var(--vp); border: 1.5px solid var(--vp); border-radius: 8px; font-size: 13px; font-weight: 700; cursor: pointer; font-family: var(--ff); transition: background 0.15s; }
.try-btn:hover { background: var(--vgl); }
.included-list { padding: 14px 16px; border-bottom: 1px solid #d8ece1; }
.inc-title { font-size: 12px; font-weight: 800; color: var(--vm); text-transform: uppercase; letter-spacing: 0.5px; margin-bottom: 10px; }
.inc-item { display: flex; align-items: center; gap: 8px; font-size: 12px; color: var(--vt); padding: 4px 0; }
.inc-item i { color: var(--vs); font-size: 15px; flex-shrink: 0; }
.teacher-box { padding: 14px 16px; border-bottom: 1px solid #d8ece1; }
.tb-title { font-size: 12px; font-weight: 800; color: var(--vm); text-transform: uppercase; letter-spacing: 0.5px; margin-bottom: 10px; }
.teacher-row { display: flex; align-items: center; gap: 10px; }
.t-avatar { width: 44px; height: 44px; border-radius: 50%; background: var(--vgl); border: 2px solid var(--vs); display: flex; align-items: center; justify-content: center; font-size: 16px; font-weight: 900; color: var(--vp); flex-shrink: 0; }
.t-name { font-size: 14px; font-weight: 700; color: var(--vt); }
.t-sub { font-size: 12px; color: var(--vm); }
.rating-row { display: flex; align-items: center; gap: 4px; margin-top: 4px; }
.star { color: #f0a500; font-size: 13px; }
.rating-num { font-size: 12px; color: var(--vm); }
.progress-box { padding: 14px 16px; }
.pb-title { font-size: 12px; font-weight: 800; color: var(--vm); text-transform: uppercase; letter-spacing: 0.5px; margin-bottom: 10px; }
.prog-row { display: flex; align-items: center; justify-content: space-between; margin-bottom: 6px; }
.prog-label { font-size: 12px; color: var(--vt); }
.prog-pct { font-size: 12px; font-weight: 700; color: var(--vp); }
.prog-track { height: 6px; background: #e0ede6; border-radius: 3px; margin-bottom: 12px; }
.prog-track-fill { height: 100%; border-radius: 3px; background: var(--vs); transition: width 0.5s ease; }
.cert-hint { background: var(--vyl); border-radius: 8px; padding: 10px 12px; display: flex; align-items: center; gap: 8px; font-size: 12px; color: #7a5c00; }
.cert-hint i { font-size: 18px; color: #c89000; flex-shrink: 0; }

/* Quiz Styles */
.quiz-container { background: #fff; border-radius: 12px; padding: 24px; box-shadow: 0 4px 12px rgba(0,0,0,0.05); }
.quiz-empty { padding: 30px; text-align: center; color: #666; background: #f9fafb; border-radius: 8px; }
.quiz-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 24px; padding-bottom: 16px; border-bottom: 1px solid #eee; }
.quiz-header h3 { margin: 0; font-size: 20px; color: #1f2937; }
.quiz-time { font-size: 14px; color: #6b7280; display: flex; align-items: center; gap: 6px; }
.question-item { margin-bottom: 30px; }
.q-title { font-size: 16px; color: #374151; margin-bottom: 16px; line-height: 1.5; }
.q-points { color: #9ca3af; font-size: 14px; margin-left: 8px; font-weight: normal; }
.q-options { display: flex; flex-direction: column; gap: 12px; }
.q-option { display: flex; align-items: flex-start; padding: 14px 16px; border: 1px solid #e5e7eb; border-radius: 8px; cursor: pointer; transition: all 0.2s; background: #fff; }
.q-option:hover:not(.disabled) { border-color: var(--vp); background: #f0fdf4; }
.q-option.selected { border-color: var(--vp); background: #e6f7ec; }
.opt-radio { width: 20px; height: 20px; border-radius: 50%; border: 2px solid #d1d5db; margin-right: 12px; display: flex; align-items: center; justify-content: center; flex-shrink: 0; margin-top: 2px; }
.q-option.selected .opt-radio { border-color: var(--vp); }
.q-option.selected .opt-radio-inner { width: 10px; height: 10px; background: var(--vp); border-radius: 50%; }
.opt-content { font-size: 15px; color: #4b5563; line-height: 1.4; }

/* Result Styles */
.q-option.disabled { cursor: default; opacity: 0.8; }
.q-option.opt-correct { border-color: #10b981; background: #ecfdf5; }
.q-option.opt-correct .opt-radio { border-color: #10b981; }
.q-option.opt-correct .opt-radio-inner { background: #10b981; }
.q-option.opt-wrong { border-color: #ef4444; background: #fef2f2; }
.q-option.opt-wrong .opt-radio { border-color: #ef4444; }
.q-option.opt-wrong .opt-radio-inner { background: #ef4444; }
.q-explanation { margin-top: 16px; padding: 16px; background: #fffbeb; border-left: 4px solid #f59e0b; border-radius: 4px; font-size: 14px; color: #92400e; line-height: 1.5; }

.quiz-actions { margin-top: 32px; display: flex; justify-content: flex-end; }
.btn-submit-quiz { background: var(--vp); color: #fff; border: none; padding: 12px 24px; border-radius: 8px; font-size: 16px; font-weight: 500; cursor: pointer; transition: opacity 0.2s; }
.btn-submit-quiz:hover { opacity: 0.9; }
.btn-submit-quiz:disabled { background: #9ca3af; cursor: not-allowed; }

.quiz-result-box { text-align: center; padding: 30px; border-radius: 12px; margin-bottom: 30px; }
.quiz-result-box.passed { background: #ecfdf5; border: 1px solid #a7f3d0; }
.quiz-result-box.failed { background: #fef2f2; border: 1px solid #fecaca; }
.qr-score { font-size: 32px; font-weight: 700; margin-bottom: 8px; }
.quiz-result-box.passed .qr-score { color: #059669; }
.quiz-result-box.failed .qr-score { color: #dc2626; }
.qr-msg { font-size: 16px; color: #4b5563; margin-bottom: 20px; }
.btn-retry { background: #fff; border: 1px solid #d1d5db; padding: 8px 16px; border-radius: 6px; cursor: pointer; font-weight: 500; color: #374151; }
.btn-retry:hover { background: #f9fafb; }

/* Payment Modal Styles */
.payment-modal-overlay { position: fixed; top: 0; left: 0; width: 100%; height: 100%; background: rgba(0,0,0,0.5); z-index: 1000; display: flex; align-items: center; justify-content: center; -webkit-backdrop-filter: blur(4px); backdrop-filter: blur(4px); }
.payment-modal { background: #fff; width: 450px; max-width: 90%; max-height: 90vh; overflow-y: auto; border-radius: 16px; padding: 32px; box-shadow: 0 20px 40px rgba(0,0,0,0.1); position: relative; }
.pm-close { position: absolute; top: 16px; right: 16px; width: 32px; height: 32px; border-radius: 50%; background: #f3f4f6; border: none; font-size: 18px; color: #6b7280; display: flex; align-items: center; justify-content: center; cursor: pointer; transition: background 0.2s; }
.pm-close:hover { background: #e5e7eb; color: #1f2937; }
.pm-title { margin: 0 0 24px 0; font-size: 22px; font-weight: 700; color: #111827; text-align: center; }
.pm-course-info { display: flex; flex-direction: column; align-items: center; gap: 8px; margin-bottom: 24px; padding-bottom: 24px; border-bottom: 1px solid #e5e7eb; }
.pm-course-title { font-size: 16px; font-weight: 600; color: #374151; text-align: center; }
.pm-price { display: flex; align-items: baseline; gap: 12px; }
.pm-original { font-size: 16px; color: #9ca3af; text-decoration: line-through; }
.pm-final { font-size: 28px; font-weight: 800; color: var(--vp); }
.pm-coupon-section { margin-bottom: 24px; }
.pm-coupon-section label { display: block; font-size: 14px; font-weight: 500; color: #4b5563; margin-bottom: 8px; }
.pm-coupon-input-group { display: flex; gap: 8px; }
.pm-coupon-input-group input { flex: 1 1; padding: 10px 14px; border: 1px solid #d1d5db; border-radius: 8px; font-size: 14px; outline: none; transition: border-color 0.2s; }
.pm-coupon-input-group input:focus { border-color: var(--vp); }
.pm-coupon-input-group button { padding: 0 20px; background: #1f2937; color: #fff; border: none; border-radius: 8px; font-size: 14px; font-weight: 500; cursor: pointer; transition: background 0.2s; }
.pm-coupon-input-group button:hover { background: #111827; }
.pm-coupon-input-group button:disabled { background: #9ca3af; cursor: not-allowed; }
.pm-coupon-msg { margin-top: 8px; font-size: 13px; }
.pm-coupon-msg.success { color: #059669; }
.pm-coupon-msg.error { color: #dc2626; }
.pm-qr-section { background: #f8fafc; border-radius: 12px; padding: 20px; text-align: center; margin-bottom: 24px; border: 1px dashed #cbd5e1; }
.pm-qr-section p { margin: 0 0 16px 0; font-size: 14px; color: #64748b; }
.pm-qr-code { width: 200px; height: 200px; margin: 0 auto 16px auto; background: #fff; padding: 8px; border-radius: 12px; box-shadow: 0 4px 6px rgba(0,0,0,0.05); }
.pm-qr-code img { width: 100%; height: 100%; object-fit: contain; }
.pm-transfer-info { text-align: left; background: #fff; padding: 16px; border-radius: 8px; font-size: 14px; line-height: 1.6; color: #334155; }
.pm-transfer-info div { display: flex; justify-content: space-between; margin-bottom: 4px; }
.pm-transfer-info div:last-child { margin-bottom: 0; }
.pm-transfer-info span { color: #64748b; }
.pm-transfer-info .highlight { color: var(--vp); background: #e6f7ec; padding: 2px 6px; border-radius: 4px; letter-spacing: 1px; }
.pm-actions { display: flex; flex-direction: column; gap: 12px; }
.pm-btn-mock { width: 100%; padding: 14px; background: var(--vp); color: #fff; border: none; border-radius: 8px; font-size: 16px; font-weight: 600; cursor: pointer; transition: background 0.2s; display: flex; align-items: center; justify-content: center; gap: 8px; }
.pm-btn-mock:hover { background: #047857; }
.pm-btn-mock:disabled { background: #a7f3d0; cursor: not-allowed; }