/* ============================================================
   MindGains · Exam Hubs — World-Class Minimal Elegant Design
   ============================================================ */

/* --- Reset & Base ------------------------------------------ */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg:         #05060a;
  --surface:    rgba(255,255,255,.05);
  --surface-2:  rgba(255,255,255,.09);
  --border:     rgba(255,255,255,.09);
  --border-hi:  rgba(55,224,255,.38);
  --text:       #f0f4ff;
  --text-muted: #7a90a8;
  --text-soft:  #b4c4d8;
  --cyan:       #37e0ff;
  --cyan-dim:   rgba(55,224,255,.1);
  --teal:       #00d4c7;
  --violet:     #7d6cff;
  --radius-sm:  10px;
  --radius-md:  18px;
  --radius-lg:  24px;
  --radius-xl:  32px;
  --ease-out:   cubic-bezier(.16,1,.3,1);
  --ease-spring:cubic-bezier(.34,1.56,.64,1);
}

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: 'Inter', 'Barlow', system-ui, sans-serif;
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
  overflow-x: hidden;
}

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

/* --- Background -------------------------------------------- */
.bg {
  position: fixed;
  inset: 0;
  z-index: -1;
  background:
    radial-gradient(ellipse 80% 50% at 50% -10%, rgba(55,224,255,.16), transparent),
    radial-gradient(ellipse 60% 40% at 8% 18%, rgba(8,145,178,.1), transparent),
    radial-gradient(ellipse 50% 50% at 90% 85%, rgba(125,108,255,.07), transparent),
    linear-gradient(180deg, #05060a 0%, #080e18 55%, #030407 100%);
}

/* --- Navigation -------------------------------------------- */
.site-nav {
  position: sticky;
  top: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 16px clamp(20px, 5vw, 64px);
  backdrop-filter: blur(28px) saturate(160%);
  -webkit-backdrop-filter: blur(28px) saturate(160%);
  background: rgba(5,6,10,.76);
  border-bottom: 1px solid var(--border);
}

.brand {
  font-weight: 800;
  font-size: 17px;
  letter-spacing: -.3px;
  background: linear-gradient(135deg, var(--text), var(--cyan));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.site-nav nav {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 4px;
}

.site-nav nav a {
  padding: 7px 14px;
  border-radius: 999px;
  color: var(--text-muted);
  font-size: 13.5px;
  font-weight: 500;
  transition: color .2s, background .2s;
}

.site-nav nav a:hover { color: var(--text); background: var(--surface); }

/* --- Main Layout ------------------------------------------- */
main {
  width: min(1120px, calc(100% - 40px));
  margin: 0 auto;
  padding: 0 0 80px;
}

/* --- Hero -------------------------------------------------- */
.hero { padding: 56px 0 32px; }

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin: 0 0 18px;
  color: var(--cyan);
  text-transform: uppercase;
  letter-spacing: 2.8px;
  font-size: 11px;
  font-weight: 800;
}

.hero h1, .section h2, .cta h2 {
  max-width: 900px;
  font-family: 'Instrument Serif', Georgia, serif;
  font-style: italic;
  font-size: clamp(44px, 7vw, 84px);
  line-height: .93;
  font-weight: 400;
  letter-spacing: -.5px;
  background: linear-gradient(160deg, #fff 30%, rgba(255,255,255,.6));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.dek {
  max-width: 700px;
  color: var(--text-soft);
  font-size: clamp(16px, 1.8vw, 19px);
  line-height: 1.65;
  margin: 18px 0 0;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

/* --- Buttons ----------------------------------------------- */
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 22px;
  border-radius: var(--radius-md);
  background: linear-gradient(135deg, var(--cyan), var(--teal));
  color: #001014;
  font-size: 14.5px;
  font-weight: 800;
  border: none;
  cursor: pointer;
  transition: transform .2s var(--ease-spring), box-shadow .2s;
  box-shadow: 0 8px 24px rgba(0,212,199,.22);
  text-decoration: none;
}

.button:hover {
  transform: translateY(-2px);
  box-shadow: 0 16px 36px rgba(0,212,199,.3);
}

.button.secondary {
  background: var(--surface-2);
  color: var(--text-soft);
  border: 1px solid var(--border);
  box-shadow: none;
}

.button.secondary:hover {
  background: rgba(255,255,255,.12);
  color: var(--text);
  box-shadow: none;
}

/* --- Sections ---------------------------------------------- */
.section, .cta, .cards article {
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  background: linear-gradient(160deg, rgba(255,255,255,.07), rgba(255,255,255,.03));
  backdrop-filter: blur(14px);
  padding: 32px;
  margin-top: 24px;
  position: relative;
  overflow: hidden;
}

.section.two,
.section.daily,
.section.quiz-preview {
  display: grid;
  grid-template-columns: minmax(0,.85fr) minmax(300px,1fr);
  gap: 28px;
  align-items: center;
}

.section h2, .cta h2 {
  font-size: clamp(30px, 4.5vw, 54px);
}

.section p, .cta p, .cards p, .faq p {
  color: var(--text-soft);
  font-size: 16px;
  line-height: 1.7;
}

/* --- Pill Row ---------------------------------------------- */
.pill-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 18px;
}

.pill-row span {
  padding: 8px 14px;
  border-radius: 999px;
  background: var(--cyan-dim);
  border: 1px solid rgba(55,224,255,.18);
  color: #dffbff;
  font-size: 13px;
  font-weight: 500;
  transition: background .2s, border-color .2s;
}

/* --- Mini Phone / Stat Card -------------------------------- */
.mini-phone, .stat-card {
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  background: radial-gradient(ellipse 60% 40% at 50% 0%, rgba(55,224,255,.12), transparent),
              rgba(5,6,10,.5);
  padding: 22px;
}

.phone-top {
  display: flex;
  justify-content: space-between;
  color: var(--text-muted);
  font-size: 12px;
  margin-bottom: 18px;
}

.mission {
  border-radius: var(--radius-md);
  background: var(--surface);
  padding: 18px;
}

.mission b {
  display: block;
  font-size: 17px;
  margin-bottom: 8px;
  color: var(--text);
}

.mission p { margin: 0; color: var(--text-muted); }

.metric-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
  margin-top: 14px;
}

.metric-grid div {
  padding: 14px;
  border-radius: var(--radius-md);
  background: var(--cyan-dim);
  border: 1px solid rgba(55,224,255,.16);
  text-align: center;
}

.metric-grid b { display: block; color: var(--cyan); font-size: 18px; font-weight: 800; }
.metric-grid span { display: block; color: var(--text-muted); font-size: 11px; margin-top: 4px; }

.stat-card {
  display: grid;
  align-content: center;
  gap: 8px;
  min-height: 160px;
}

.stat-card strong {
  font-size: 32px;
  color: var(--text);
  font-weight: 800;
  letter-spacing: -.5px;
}

.stat-card span { color: var(--cyan); font-weight: 700; font-size: 15px; }

/* --- Cards ------------------------------------------------- */
.cards {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
  margin-top: 24px;
}

.cards article { margin-top: 0; }

.cards h2 {
  font-size: 26px;
  font-weight: 700;
  margin: 0 0 12px;
  letter-spacing: -.2px;
}

.cards a {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 14px;
  color: var(--cyan);
  font-weight: 700;
  font-size: 14px;
  transition: gap .18s;
}

.cards a:hover { gap: 10px; }

/* --- Compare Grid ------------------------------------------ */
.compare {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  margin-top: 20px;
}

.compare div {
  padding: 20px;
  border-radius: var(--radius-md);
  background: var(--surface);
  border: 1px solid var(--border);
  transition: border-color .2s, transform .2s;
}

.compare div:hover {
  border-color: rgba(255,255,255,.15);
  transform: translateY(-2px);
}

.compare .highlight {
  background: var(--cyan-dim);
  border-color: rgba(55,224,255,.25);
}

.compare h3 { margin: 0 0 10px; font-size: 17px; font-weight: 700; }
.compare p  { font-size: 14px; margin: 0; color: var(--text-muted); }

/* --- Link Grid --------------------------------------------- */
.link-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
  margin-top: 18px;
}

.link-grid a {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  padding: 16px 18px;
  border-radius: var(--radius-md);
  background: var(--cyan-dim);
  border: 1px solid rgba(55,224,255,.16);
  color: #e8fbff;
  font-weight: 700;
  font-size: 14px;
  transition: background .18s, border-color .18s, transform .18s;
}

.link-grid a:hover {
  background: rgba(55,224,255,.15);
  border-color: rgba(55,224,255,.35);
  transform: translateX(3px);
}

.link-grid span { color: var(--cyan); font-size: 18px; }

/* --- FAQ --------------------------------------------------- */
.faq details {
  border-top: 1px solid var(--border);
  padding: 18px 0;
}

.faq details:first-of-type { margin-top: 14px; }

.faq summary {
  cursor: pointer;
  font-weight: 700;
  font-size: 15px;
  color: var(--text);
  user-select: none;
  display: flex;
  align-items: center;
  gap: 8px;
  transition: color .18s;
}

.faq summary:hover { color: var(--cyan); }
.faq p { margin: 12px 0 0; font-size: 15px; }

/* --- CTA --------------------------------------------------- */
.cta {
  text-align: left;
  padding: 36px;
}

.cta h2 { max-width: 760px; }
.cta p  { max-width: 700px; margin-top: 14px; }

/* --- Atlas / India Orb ------------------------------------- */
.atlas-hero {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(300px, .9fr);
  gap: 24px;
  align-items: center;
}

.atlas-stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
  margin-top: 24px;
  max-width: 520px;
}

.atlas-stats div {
  padding: 14px 12px;
  border-radius: var(--radius-md);
  background: var(--cyan-dim);
  border: 1px solid rgba(55,224,255,.16);
  text-align: center;
}

.atlas-stats strong { display: block; font-size: 28px; font-weight: 800; color: var(--text); }
.atlas-stats span   { display: block; color: var(--text-muted); font-size: 11px; margin-top: 4px; }

.atlas-section {
  display: grid;
  grid-template-columns: minmax(0, .9fr) minmax(0, 1.1fr);
  gap: 22px;
  align-items: start;
}

.atlas-side { display: grid; gap: 14px; }

.atlas-panel {
  padding: 20px;
  border-radius: var(--radius-md);
  background: var(--surface);
  border: 1px solid var(--border);
}

.atlas-panel h3, .atlas-region h3 {
  margin: 0 0 12px;
  font-size: 15px;
  font-weight: 700;
  color: var(--text);
}

.atlas-chip-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.atlas-chip-row.dense { gap: 6px; }

.atlas-chip {
  padding: 8px 12px;
  border-radius: 999px;
  background: var(--surface);
  border: 1px solid var(--border);
  color: #d8e7ff;
  font-size: 12px;
  line-height: 1;
  transition: background .18s, border-color .18s;
}

.atlas-chip:hover {
  background: var(--cyan-dim);
  border-color: rgba(55,224,255,.25);
}

.atlas-regions {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
  margin-top: 24px;
}

.atlas-region {
  padding: 20px;
  border-radius: var(--radius-md);
  background: var(--surface);
  border: 1px solid var(--border);
}

/* --- India Orb --------------------------------------------- */
.india-orb {
  display: flex;
  justify-content: center;
  align-items: center;
}

.orb-shell {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
}

.orb-container {
  position: relative;
  width: 240px;
  height: 240px;
  display: flex;
  justify-content: center;
  align-items: center;
  overflow: hidden;
  border-radius: 50%;
  cursor: pointer;
  filter: drop-shadow(0 0 12px rgba(255,62,28,.4)) drop-shadow(0 0 12px rgba(28,140,255,.4));
  transition: filter .3s;
  animation: orbFloat 8s ease-in-out infinite;
}

.orb-container:hover {
  filter: drop-shadow(0 0 20px rgba(255,62,28,.6)) drop-shadow(0 0 20px rgba(28,140,255,.6));
}

.orb {
  position: absolute;
  width: 240px;
  aspect-ratio: 1;
  border-radius: 50%;
  background: #060606;
  filter: blur(24px);
  transition: all .3s;
}

.orb-container:hover .orb { width: 260px; }

.orb-inner {
  position: absolute;
  left: -120%;
  top: -25%;
  width: 160%;
  aspect-ratio: 1;
  border-radius: 50%;
  background: #ff3e1c;
  clip-path: polygon(50% 0%,61% 35%,98% 35%,68% 57%,79% 91%,50% 70%,21% 91%,32% 57%,2% 35%,39% 35%);
  animation: rotateSpin 6s linear infinite;
}

.orb-inner:nth-child(2) {
  left: auto;
  right: -120%;
  top: auto;
  bottom: -25%;
  background: #1c8cff;
  animation-duration: 8s;
  clip-path: polygon(20% 0%,0% 20%,30% 50%,0% 80%,20% 100%,50% 70%,80% 100%,100% 80%,70% 50%,100% 20%,80% 0%,50% 30%);
}

.orb-labels {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 7px;
  max-width: 340px;
}

.orb-labels span {
  padding: 7px 12px;
  border-radius: 999px;
  background: var(--surface);
  border: 1px solid var(--border);
  color: #d8e7ff;
  font-size: 11px;
  letter-spacing: .2px;
}

@keyframes rotateSpin {
  from { transform: rotate(0deg); }
  to   { transform: rotate(360deg); }
}

@keyframes orbFloat {
  0%, 100% { transform: translateY(0); }
  50%       { transform: translateY(-6px); }
}

/* --- Responsive -------------------------------------------- */
@media (max-width: 860px) {
  .site-nav { align-items: flex-start; }
  .site-nav nav { gap: 6px; font-size: 13px; }
  .site-nav nav a:nth-child(1),
  .site-nav nav a:nth-child(2),
  .site-nav nav a:nth-child(3) { display: none; }

  .hero { padding-top: 32px; }

  .section.two,
  .section.daily,
  .section.quiz-preview,
  .cards,
  .compare,
  .link-grid,
  .atlas-hero,
  .atlas-section,
  .atlas-regions { grid-template-columns: 1fr; }

  .metric-grid { grid-template-columns: 1fr 1fr; }

  .hero-actions { display: grid; }
  .button { width: 100%; justify-content: center; }

  .section, .cta, .cards article { padding: 22px 18px; }

  .atlas-stats { grid-template-columns: 1fr 1fr; }
  .orb-container, .orb { width: 200px; height: 200px; }
  .orb-labels { max-width: none; }
}