@import url('https://fonts.googleapis.com/css2?family=Clash+Display:wght@400;500;600;700&family=Cabinet+Grotesk:wght@300;400;500;700&display=swap');
@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@300;400;500;600;700;800&family=Lora:ital,wght@1,400;1,500&display=swap');

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

/* ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
   DESIGN TOKENS
━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ */
:root {
  --bg:           #03030a;
  --bg-2:         #07071a;
  --surface:      rgba(255,255,255,0.028);
  --surface-2:    rgba(255,255,255,0.055);
  --glass-border: rgba(255,255,255,0.08);
  --glass-shine:  rgba(255,255,255,0.12);

  --text:         #eef2ff;
  --text-sub:     rgba(210,220,255,0.5);
  --text-dim:     rgba(180,195,255,0.32);

  --green:        #05f5aa;
  --green-dim:    rgba(5,245,170,0.15);
  --blue:         #3b9eff;
  --blue-dim:     rgba(59,158,255,0.15);
  --purple:       #b07ef8;
  --purple-dim:   rgba(176,126,248,0.15);
  --teal:         #10dff5;
  --teal-dim:     rgba(16,223,245,0.15);

  --radius-card:  24px;
  --speed:        0.4s;
  --speed-fast:   0.22s;

  --font-head:   'Outfit', sans-serif;
  --font-body:   'Outfit', sans-serif;
  --font-accent: 'Lora', serif;
}

/* ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
   SCROLLBAR
━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ */
::-webkit-scrollbar              { width: 5px; }
::-webkit-scrollbar-track        { background: var(--bg); }
::-webkit-scrollbar-thumb        { background: rgba(255,255,255,0.1); border-radius: 99px; }
::-webkit-scrollbar-thumb:hover  { background: rgba(255,255,255,0.2); }

/* ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
   BODY & BACKGROUND LAYERS
━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ */
body {
  font-family: var(--font-body);
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 0 1.5rem 8rem;
  position: relative;
  overflow-x: hidden;
  cursor: default;
}

/* Layer 1 — deep gradient mesh */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  background:
    radial-gradient(ellipse 90% 55% at -5% -10%,  rgba(5,245,170,0.09)  0%, transparent 55%),
    radial-gradient(ellipse 70% 50% at 105% 15%,  rgba(59,158,255,0.09) 0%, transparent 55%),
    radial-gradient(ellipse 80% 70% at 50%  110%,  rgba(176,126,248,0.07) 0%, transparent 55%),
    radial-gradient(ellipse 50% 40% at 80%  60%,  rgba(16,223,245,0.05) 0%, transparent 50%);
  pointer-events: none;
  z-index: 0;
}

/* Layer 2 — subtle dot grid */
body::after {
  content: '';
  position: fixed;
  inset: 0;
  background-image: radial-gradient(circle, rgba(255,255,255,0.055) 1px, transparent 1px);
  background-size: 36px 36px;
  pointer-events: none;
  z-index: 0;
  mask-image: radial-gradient(ellipse 100% 100% at 50% 50%, black 30%, transparent 100%);
  -webkit-mask-image: radial-gradient(ellipse 100% 100% at 50% 50%, black 30%, transparent 100%);
}

/* ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
   FLOATING ORBS (pure CSS, no JS)
━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ */
body > *:first-child::before,
body > *:first-child::after {
  display: none; /* orbs handled on header */
}

/* ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
   HEADER
━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ */
header {
  position: relative;
  z-index: 2;
  text-align: center;
  padding: 6rem 1rem 5rem;
  width: 100%;
  max-width: 1140px;
  isolation: isolate;
}

/* Orb left */
header::before {
  content: '';
  position: absolute;
  width: 480px;
  height: 480px;
  left: -160px;
  top: -80px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(5,245,170,0.18) 0%, transparent 70%);
  filter: blur(40px);
  pointer-events: none;
  animation: orbPulse 6s ease-in-out infinite;
  z-index: -1;
}

/* Orb right */
header::after {
  content: '';
  position: absolute;
  width: 420px;
  height: 420px;
  right: -140px;
  top: 20px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(59,158,255,0.15) 0%, transparent 70%);
  filter: blur(45px);
  pointer-events: none;
  animation: orbPulse 7s ease-in-out infinite reverse;
  z-index: -1;
}

@keyframes orbPulse {
  0%,100% { transform: scale(1) translate(0,0); opacity: 0.8; }
  33%      { transform: scale(1.08) translate(10px,-8px); opacity: 1; }
  66%      { transform: scale(0.95) translate(-6px,10px); opacity: 0.7; }
}

/* Eye-line — decorative vertical rule */
.header-eyeline {
  display: block;
  width: 1px;
  height: 64px;
  background: linear-gradient(180deg, transparent, var(--green));
  margin: 0 auto 2rem;
  opacity: 0.6;
  animation: fadeInDown 1s ease 0.2s both;
}

@keyframes fadeInDown {
  from { opacity: 0; transform: scaleY(0); transform-origin: top; }
  to   { opacity: 0.6; transform: scaleY(1); }
}

/* Logo */
.c-logo {
  width: 88px;
  filter: drop-shadow(0 0 20px rgba(5,245,170,0.45));
  margin-bottom: 1.6rem;
  display: block;
  margin-left: auto;
  margin-right: auto;
  animation: floatLogo 5s ease-in-out infinite;
  transition: filter var(--speed);
  cursor: pointer;
}

.c-logo:hover {
  filter: drop-shadow(0 0 36px rgba(5,245,170,0.75));
  animation-play-state: paused;
  transform: rotate(12deg) scale(1.12);
}

@keyframes floatLogo {
  0%,100% { transform: translateY(0px) rotate(0deg); }
  30%     { transform: translateY(-8px) rotate(2deg); }
  70%     { transform: translateY(-4px) rotate(-1deg); }
}

/* Tagline above h1 */
.header-tagline {
  display: block;
  font-family: var(--font-accent);
  font-style: italic;
  font-size: 1rem;
  color: var(--text-sub);
  letter-spacing: 0.04em;
  margin-bottom: 0.7rem;
  animation: fadeUp 0.8s ease 0.4s both;
}

h1 {
  font-family: var(--font-head);
  font-weight: 800;
  font-size: clamp(2.4rem, 6vw, 4rem);
  line-height: 1.05;
  letter-spacing: -0.03em;
  color: var(--text);
  user-select: none;
  animation: fadeUp 0.9s ease 0.5s both;
  position: relative;
  display: inline-block;
}

/* Shimmer sweep on h1 */
h1::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(105deg, transparent 35%, rgba(255,255,255,0.14) 50%, transparent 65%);
  background-size: 200% 100%;
  animation: shimmerText 4s ease-in-out 1.5s infinite;
  pointer-events: none;
  border-radius: 4px;
}

@keyframes shimmerText {
  0%   { background-position: -100% 0; }
  40%,100% { background-position: 200% 0; }
}

@keyframes fadeUp {
  from { opacity: 0; transform: translateY(20px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
   ENROLL BUTTON
━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ */
a.clickable {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  margin-top: 2.4rem;
  padding: 0.85rem 2.4rem;
  border-radius: 99px;
  background: var(--green);
  color: #030a08;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 0.95rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  text-decoration: none;
  position: relative;
  overflow: hidden;
  transition: transform var(--speed) cubic-bezier(0.34,1.56,0.64,1),
              box-shadow var(--speed) ease;
  animation: fadeUp 1s ease 0.8s both;
  user-select: none;
  isolation: isolate;
}

/* Inner shine */
a.clickable::before {
  content: '';
  position: absolute;
  top: 0; left: -75%;
  width: 50%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.4), transparent);
  transform: skewX(-20deg);
  transition: left 0.55s ease;
}

/* Pulse ring */
a.clickable::after {
  content: '';
  position: absolute;
  inset: -3px;
  border-radius: 99px;
  border: 2px solid var(--green);
  opacity: 0;
  transform: scale(0.9);
  transition: opacity 0.3s ease, transform 0.3s ease;
}

a.clickable:hover {
  transform: translateY(-4px) scale(1.05);
  box-shadow:
    0 0 0 4px rgba(5,245,170,0.15),
    0 0 40px 10px rgba(5,245,170,0.3),
    0 12px 28px rgba(5,245,170,0.2);
  outline: none;
}

a.clickable:hover::before { left: 125%; }

a.clickable:hover::after {
  opacity: 0.6;
  transform: scale(1.08);
}

/* ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
   MAIN
━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ */
main {
  position: relative;
  z-index: 2;
  width: 100%;
  max-width: 1140px;
  display: flex;
  flex-direction: column;
  gap: 1.75rem;
  padding-bottom: 5rem;
}

/* ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
   COURSE CARDS
━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ */
section.course-level {
  position: relative;
  border-radius: var(--radius-card);
  padding: 2.75rem 3rem 2.75rem 3.5rem;
  background: var(--surface);
  border: 1px solid var(--glass-border);
  backdrop-filter: blur(20px) saturate(160%);
  -webkit-backdrop-filter: blur(20px) saturate(160%);
  overflow: hidden;
  cursor: default;
  isolation: isolate;
  transition:
    transform 0.45s cubic-bezier(0.34,1.2,0.64,1),
    box-shadow 0.45s ease,
    background 0.35s ease,
    border-color 0.35s ease;

  /* entrance */
  opacity: 0;
  transform: translateY(36px) scale(0.98);
  animation: cardIn 0.65s cubic-bezier(0.22,1,0.36,1) forwards;
}

section.course-level:nth-child(1) { animation-delay: 0.08s; }
section.course-level:nth-child(2) { animation-delay: 0.18s; }
section.course-level:nth-child(3) { animation-delay: 0.28s; }
section.course-level:nth-child(4) { animation-delay: 0.38s; }
section.course-level:nth-child(5) { animation-delay: 0.48s; }

@keyframes cardIn {
  to { opacity: 1; transform: translateY(0) scale(1); }
}

/* Top-right ambient glow */
section.course-level::before {
  content: '';
  position: absolute;
  width: 360px;
  height: 360px;
  border-radius: 50%;
  right: -90px;
  top: -100px;
  filter: blur(70px);
  opacity: 0.13;
  pointer-events: none;
  transition: opacity 0.45s ease, transform 0.45s ease;
  z-index: -1;
}

/* Top edge shimmer line */
section.course-level::after {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent 0%, var(--glass-shine) 40%, transparent 100%);
  pointer-events: none;
}

section.course-level:hover {
  transform: translateY(-6px) scale(1.008);
  background: var(--surface-2);
  z-index: 10;
}

section.course-level:hover::before {
  opacity: 0.26;
  transform: scale(1.15) translate(-10px, 10px);
}

/* ── Left accent bar with gradient ── */
section.course-level.beginner {
  border-left: 3px solid var(--green);
  box-shadow: inset 4px 0 30px -10px rgba(5,245,170,0.08);
}
section.course-level.beginner::before    { background: var(--green); }
section.course-level.beginner:hover      {
  box-shadow:
    inset 4px 0 40px -8px rgba(5,245,170,0.15),
    0 20px 60px -10px rgba(5,245,170,0.14),
    0 0 0 1px rgba(5,245,170,0.12);
  border-color: rgba(5,245,170,0.5);
}

section.course-level.intermediate {
  border-left: 3px solid var(--blue);
  box-shadow: inset 4px 0 30px -10px rgba(59,158,255,0.08);
}
section.course-level.intermediate::before { background: var(--blue); }
section.course-level.intermediate:hover   {
  box-shadow:
    inset 4px 0 40px -8px rgba(59,158,255,0.15),
    0 20px 60px -10px rgba(59,158,255,0.14),
    0 0 0 1px rgba(59,158,255,0.12);
  border-color: rgba(59,158,255,0.5);
}

section.course-level.advanced {
  border-left: 3px solid var(--purple);
  box-shadow: inset 4px 0 30px -10px rgba(176,126,248,0.08);
}
section.course-level.advanced::before    { background: var(--purple); }
section.course-level.advanced:hover      {
  box-shadow:
    inset 4px 0 40px -8px rgba(176,126,248,0.15),
    0 20px 60px -10px rgba(176,126,248,0.14),
    0 0 0 1px rgba(176,126,248,0.12);
  border-color: rgba(176,126,248,0.5);
}

section.course-level.professional {
  border-left: 3px solid var(--teal);
  box-shadow: inset 4px 0 30px -10px rgba(16,223,245,0.08);
}
section.course-level.professional::before { background: var(--teal); }
section.course-level.professional:hover   {
  box-shadow:
    inset 4px 0 40px -8px rgba(16,223,245,0.15),
    0 20px 60px -10px rgba(16,223,245,0.14),
    0 0 0 1px rgba(16,223,245,0.12);
  border-color: rgba(16,223,245,0.5);
}

/* ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
   SECTION HEADING
━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ */
h2 {
  font-family: var(--font-head);
  font-weight: 700;
  font-size: clamp(1.25rem, 2.8vw, 1.65rem);
  letter-spacing: -0.02em;
  margin-bottom: 1.8rem;
  user-select: none;
  display: flex;
  align-items: center;
  gap: 1rem;
  position: relative;
}

/* Level pill badge */
h2::before {
  content: '';
  display: inline-block;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: currentColor;
  flex-shrink: 0;
  box-shadow: 0 0 10px 3px currentColor;
  animation: dotPulse 2.5s ease-in-out infinite;
}

@keyframes dotPulse {
  0%,100% { box-shadow: 0 0 6px 2px currentColor; transform: scale(1); }
  50%      { box-shadow: 0 0 14px 5px currentColor; transform: scale(1.3); }
}

/* Fading rule */
h2::after {
  content: '';
  flex: 1;
  height: 1px;
  background: linear-gradient(90deg, currentColor 0%, transparent 100%);
  opacity: 0.15;
}

section.course-level.beginner     h2 { color: var(--green); }
section.course-level.intermediate h2 { color: var(--blue); }
section.course-level.advanced     h2 { color: var(--purple); }
section.course-level.professional h2 { color: var(--teal); }

/* Level label — top right corner */
section.course-level.beginner     > h2 > span.level-tag::after { content: 'BEGINNER'; color: var(--green); }
section.course-level.intermediate > h2 > span.level-tag::after { content: 'INTERMEDIATE'; color: var(--blue); }
section.course-level.advanced     > h2 > span.level-tag::after { content: 'ADVANCED'; color: var(--purple); }
section.course-level.professional > h2 > span.level-tag::after { content: 'PRO'; color: var(--teal); }

/* Floating badge top-right */
section.course-level {
  counter-reset: none;
}

.level-badge {
  position: absolute;
  top: 1.5rem;
  right: 1.75rem;
  font-family: var(--font-head);
  font-size: 0.6rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  padding: 0.28rem 0.75rem;
  border-radius: 99px;
  border: 1px solid currentColor;
  opacity: 0.35;
  pointer-events: none;
  transition: opacity 0.3s ease;
}

section.course-level:hover .level-badge { opacity: 0.6; }
section.course-level.beginner     .level-badge { color: var(--green); }
section.course-level.intermediate .level-badge { color: var(--blue); }
section.course-level.advanced     .level-badge { color: var(--purple); }
section.course-level.professional .level-badge { color: var(--teal); }

/* ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
   LISTS
━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ */
ol, ul {
  padding-left: 0;
  list-style: none;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(230px, 1fr));
  gap: 0;
  counter-reset: lesson;
}

li {
  counter-increment: lesson;
  display: flex;
  align-items: center;
  gap: 0.8rem;
  padding: 0.7rem 0.5rem;
  border-bottom: 1px solid rgba(255,255,255,0.04);
  transition: background var(--speed-fast) ease, padding-left var(--speed-fast) ease;
  border-radius: 6px;
}

li::before {
  content: counter(lesson, decimal-leading-zero);
  font-family: var(--font-head);
  font-size: 0.62rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: currentColor;
  opacity: 0.22;
  min-width: 1.6rem;
  flex-shrink: 0;
  transition: opacity var(--speed-fast) ease;
}

ul li::before {
  content: '◆';
  font-size: 0.4rem;
  opacity: 0.25;
}

section.course-level.beginner     li { color: var(--green); }
section.course-level.intermediate li { color: var(--blue); }
section.course-level.advanced     li { color: var(--purple); }
section.course-level.professional li { color: var(--teal); }

/* ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
   LESSON TITLES — PURE PLAIN TEXT
━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ */
main li a.clickable,
main li a.clickable:hover,
main li a.clickable:focus {
  background:    none !important;
  box-shadow:    none !important;
  padding:       0    !important;
  border-radius: 0    !important;
  font-weight:   400  !important;
  font-family:   var(--font-body) !important;
  font-size:     0.95rem !important;
  transform:     none  !important;
  text-decoration: none !important;
  text-shadow:   none  !important;
  color:         var(--text-sub) !important;
  cursor:        default !important;
  pointer-events: none !important;
  letter-spacing: 0 !important;
  margin-top:    0 !important;
  display:       inline !important;
  text-transform: none !important;
  border: none !important;
  outline: none !important;
}

/* ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
   IMAGES
━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ */
img {
  width: 100px;
  height: 100px;
  object-fit: cover;
  border-radius: 18px;
  display: block;
  margin: 0 auto 1.8rem;
  filter: drop-shadow(0 0 24px rgba(5,245,170,0.35));
  transition: transform var(--speed) cubic-bezier(0.34,1.56,0.64,1), filter var(--speed) ease;
  animation: floatLogo 5s ease-in-out infinite;
}

img:hover {
  transform: scale(1.1) rotate(-4deg);
  filter: drop-shadow(0 0 36px rgba(5,245,170,0.6));
}

/* ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
   RESPONSIVE
━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ */
@media (max-width: 900px) {
  section.course-level { padding: 2.25rem 2rem 2.25rem 2.5rem; }
  ol, ul { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 600px) {
  header { padding: 4rem 1rem 3rem; }
  main   { gap: 1.25rem; }
  section.course-level { padding: 1.75rem 1.25rem 1.75rem 1.75rem; }
  ol, ul { grid-template-columns: 1fr; }
  h1     { font-size: 2.2rem; }
  a.clickable { padding: 0.75rem 1.75rem; font-size: 0.88rem; }
}