/* ------------------------------------------------------------
   Star Public School (Homepage) - Modern UI/UX
   ------------------------------------------------------------ */

:root {
  /* Light theme (bright, school-friendly) */
  --bg: #f6f9ff;
  --surface: #ffffff;
  --card: #ffffff;
  --card-solid: #ffffff;
  --text: #0b1b3a;
  --muted: rgba(11, 27, 58, 0.70);
  --ink: #0b1b3a;
  --primary: #0b5fff;
  --primary-2: #34b3ff;
  --border: rgba(11, 27, 58, 0.12);
  --shadow: 0 18px 46px rgba(11, 27, 58, 0.14);
  --radius: 16px;
  --radius-sm: 12px;
  --max: 1100px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "Roboto", system-ui, -apple-system, Segoe UI, Arial, sans-serif;
  color: var(--text);
  background:
    radial-gradient(900px 520px at 12% 0%, rgba(52, 179, 255, 0.22), transparent 60%),
    radial-gradient(900px 520px at 88% 10%, rgba(11, 95, 255, 0.16), transparent 60%),
    radial-gradient(700px 460px at 55% 35%, rgba(255, 214, 102, 0.18), transparent 62%),
    var(--bg);
}

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

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

.header {
  min-height: 100vh;
  position: relative;
  overflow: hidden;
  /* Removed background photo -> clean premium gradient background */
  background:
    radial-gradient(900px 560px at 14% 14%, rgba(52, 179, 255, 0.22), transparent 60%),
    radial-gradient(900px 560px at 86% 22%, rgba(11, 95, 255, 0.14), transparent 60%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.92), rgba(246, 249, 255, 0.96));
}

/* Soft decorative blobs (keeps hero lively without photos) */
.header::before,
.header::after {
  content: "";
  position: absolute;
  inset: -120px -120px auto auto;
  width: 520px;
  height: 520px;
  border-radius: 999px;
  background: radial-gradient(circle at 30% 30%, rgba(52, 179, 255, 0.20), transparent 55%);
  filter: blur(18px);
  opacity: 0.9;
  pointer-events: none;
  z-index: 0;
}

.header::after {
  inset: auto auto -160px -160px;
  width: 640px;
  height: 640px;
  background: radial-gradient(circle at 30% 30%, rgba(11, 95, 255, 0.14), transparent 58%);
}

.header > * {
  position: relative;
  z-index: 1;
}

/* Top Navigation */
.nav {
  position: fixed;
  inset: 0 0 auto 0;
  height: 74px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 18px;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.70);
  border-bottom: 1px solid rgba(11, 27, 58, 0.10);
  backdrop-filter: blur(10px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  min-width: 220px;
}

.brand img {
  width: 44px;
  height: 44px;
  border-radius: 10px;
  object-fit: cover;
  box-shadow: 0 8px 18px rgba(0, 0, 0, 0.25);
}

.brand-name {
  font-weight: 700;
  letter-spacing: 0.2px;
  font-size: 16px;
}

.nav-links {
  display: flex;
  align-items: center;
  justify-content: flex-end;
}

.nav-links ul {
  list-style: none;
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 0;
  padding: 0;
}

.nav-links a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 14px;
  border-radius: 999px;
  font-weight: 500;
  color: rgba(11, 27, 58, 0.92);
  transition: background 160ms ease, transform 160ms ease, border-color 160ms ease;
  border: 1px solid transparent;
}

.nav-links a:hover {
  background: rgba(11, 95, 255, 0.08);
  border-color: rgba(11, 95, 255, 0.16);
}

.nav-links a:active {
  transform: translateY(1px);
}

.nav-icon {
  display: none;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: 12px;
  border: 1px solid rgba(11, 27, 58, 0.14);
  background: rgba(255, 255, 255, 0.82);
  color: rgba(11, 27, 58, 0.92);
  cursor: pointer;
}

.nav-icon i {
  font-size: 20px;
}

/* Hero */
.hero {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 120px 16px 64px;
}

.hero-content {
  width: min(var(--max), 100%);
  margin: 0 auto;
  text-align: left;
}

.hero-split {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 22px;
  align-items: center;
}

.hero-copy {
  min-width: 0;
}

.hero-mosaic {
  min-width: 0;
  border-radius: 22px;
  background: rgba(255, 255, 255, 0.86);
  border: 1px solid rgba(11, 27, 58, 0.12);
  box-shadow: 0 18px 44px rgba(11, 27, 58, 0.16);
  padding: 14px;
}

.mosaic {
  height: 520px;
  border-radius: 18px;
  overflow: hidden;
  background: rgba(246, 249, 255, 0.95);
  border: 1px solid rgba(11, 27, 58, 0.10);
  position: relative;
}

.mosaic-track {
  display: flex;
  flex-direction: column;
  gap: 14px;
  padding: 14px;
  animation: mosaicScroll 18s linear infinite;
  will-change: transform;
}

.mosaic:hover .mosaic-track {
  animation-play-state: paused;
}

.mosaic-grid {
  display: grid;
  gap: 12px;
  grid-template-columns: repeat(3, 1fr);
  grid-auto-rows: 118px;
}

.mosaic-grid img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 16px;
  border: 1px solid rgba(11, 27, 58, 0.10);
  box-shadow: 0 10px 22px rgba(11, 27, 58, 0.12);
}

/* Give a mosaic / magazine feel (like reference screenshot) */
.mosaic-grid img:nth-child(2),
.mosaic-grid img:nth-child(5) {
  grid-column: span 2;
}

.mosaic-grid img:nth-child(8) {
  grid-column: span 3;
}

.mosaic-caption {
  display: flex;
  justify-content: space-between;
  gap: 10px;
  margin-top: 12px;
  color: rgba(11, 27, 58, 0.78);
  font-size: 13px;
}

.mosaic-caption strong {
  color: rgba(11, 27, 58, 0.92);
}

.mosaic-caption span {
  color: rgba(11, 27, 58, 0.62);
}

@keyframes mosaicScroll {
  0% { transform: translateY(0); }
  100% { transform: translateY(-50%); }
}

.hero h1 {
  font-size: clamp(32px, 4vw, 54px);
  line-height: 1.06;
  letter-spacing: -0.6px;
  margin: 0 0 12px;
}

.hero p {
  max-width: 62ch;
  margin: 0 0 18px;
  color: var(--muted);
  font-size: 16px;
  line-height: 1.6;
}

.hero-actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-top: 8px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 18px;
  border-radius: 12px;
  font-weight: 600;
  border: 1px solid rgba(11, 27, 58, 0.16);
  transition: transform 160ms ease, background 160ms ease, border-color 160ms ease;
}

.btn.primary {
  background: linear-gradient(135deg, var(--primary), var(--primary-2));
  border-color: rgba(11, 95, 255, 0.18);
  color: #fff;
}

.btn.ghost {
  background: rgba(11, 95, 255, 0.06);
  border-color: rgba(11, 95, 255, 0.14);
  color: rgba(11, 27, 58, 0.92);
}

.btn:hover {
  transform: translateY(-1px);
}

.btn:active {
  transform: translateY(0);
}

.hero-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 18px;
}

.badge {
  display: inline-flex;
  padding: 8px 12px;
  border-radius: 999px;
  border: 1px solid rgba(11, 95, 255, 0.14);
  background: rgba(11, 95, 255, 0.06);
  color: rgba(11, 27, 58, 0.88);
  font-size: 13px;
  font-weight: 500;
}

/* Shared section layout */
.course,
.campus,
.facilities {
  width: min(var(--max), 92%);
  margin: 0 auto;
  padding: 72px 0;
  text-align: center;
}

.section-title {
  margin: 0 0 10px;
  font-size: clamp(22px, 2.6vw, 34px);
  letter-spacing: -0.3px;
}

.section-subtitle {
  margin: 0 auto;
  max-width: 70ch;
  color: var(--muted);
  font-size: 16px;
  line-height: 1.6;
}

.row {
  margin-top: 26px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}

/* Cards */
.course-col,
.facilities-col {
  text-align: left;
  border-radius: var(--radius);
  border: 1px solid rgba(11, 27, 58, 0.12);
  background: rgba(255, 255, 255, 0.92);
  padding: 18px 16px;
  box-shadow: 0 10px 28px rgba(11, 27, 58, 0.12);
  transition: transform 180ms ease, border-color 180ms ease, background 180ms ease;
}

.course-col:hover,
.facilities-col:hover {
  transform: translateY(-3px);
  border-color: rgba(52, 179, 255, 0.28);
  background: rgba(255, 255, 255, 0.98);
}

.course-col h3,
.facilities-col h3 {
  margin: 6px 0 8px;
  font-size: 18px;
}

.course-col p {
  margin: 0;
  color: rgba(11, 27, 58, 0.74);
  line-height: 1.6;
  font-size: 14.5px;
}

.facilities-col img {
  border-radius: 14px;
  aspect-ratio: 16 / 10;
  object-fit: cover;
  border: 1px solid rgba(11, 27, 58, 0.10);
}

.facilities-col h3 {
  text-align: center;
  margin-top: 12px;
}

/* Campus gallery cards (image overlay label) */
.campus-col {
  border-radius: var(--radius);
  overflow: hidden;
  position: relative;
  border: 1px solid rgba(11, 27, 58, 0.12);
  box-shadow: 0 14px 34px rgba(11, 27, 58, 0.14);
  transform: translateZ(0);
}

.campus-col img {
  width: 100%;
  height: 100%;
  aspect-ratio: 16 / 11;
  object-fit: cover;
  filter: saturate(1.04) contrast(1.02);
  transition: transform 280ms ease;
}

.campus-col:hover img {
  transform: scale(1.04);
}

.layer {
  position: absolute;
  inset: 0;
  display: grid;
  align-items: end;
  padding: 16px;
  background: linear-gradient(180deg, rgba(0, 0, 0, 0.06), rgba(0, 0, 0, 0.72));
}

.layer h3 {
  margin: 0;
  text-align: left;
  font-size: 18px;
  font-weight: 700;
}

/* Gallery carousel (professional school slider) */
.gallery {
  width: min(var(--max), 92%);
  margin: 0 auto;
  padding: 54px 0 12px;
  text-align: center;
}

.gallery-inner {
  margin: 0 auto;
}

.carousel {
  position: relative;
  margin-top: 18px;
  border-radius: var(--radius);
  border: 1px solid rgba(11, 27, 58, 0.12);
  background: rgba(255, 255, 255, 0.92);
  box-shadow: 0 16px 40px rgba(11, 27, 58, 0.14);
  overflow: hidden;
}

.carousel-viewport {
  outline: none;
}

.carousel-viewport:focus-visible {
  box-shadow: 0 0 0 3px rgba(52, 179, 255, 0.35);
}

.carousel-track {
  display: flex;
  width: 100%;
  transform: translateX(0);
  transition: transform 420ms cubic-bezier(.2,.8,.2,1);
}

.carousel-slide {
  flex: 0 0 100%;
  margin: 0;
  position: relative;
}

.carousel-slide img {
  width: 100%;
  height: min(520px, 62vh);
  object-fit: cover;
  filter: saturate(1.04) contrast(1.02);
  display: block;
}

.carousel-caption {
  position: absolute;
  left: 16px;
  right: 16px;
  bottom: 14px;
  padding: 12px 14px;
  border-radius: 14px;
  background: linear-gradient(180deg, rgba(11, 18, 32, 0.18), rgba(11, 18, 32, 0.78));
  border: 1px solid rgba(255, 255, 255, 0.12);
  color: rgba(255, 255, 255, 0.94);
  font-weight: 600;
  text-align: left;
}

.carousel-btn {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 44px;
  height: 44px;
  border-radius: 999px;
  border: 1px solid rgba(11, 27, 58, 0.14);
  background: rgba(255, 255, 255, 0.86);
  color: rgba(11, 27, 58, 0.92);
  cursor: pointer;
  display: grid;
  place-items: center;
  transition: transform 160ms ease, background 160ms ease, border-color 160ms ease;
}

.carousel-btn:hover {
  background: rgba(11, 95, 255, 0.08);
  border-color: rgba(11, 95, 255, 0.20);
  transform: translateY(-50%) scale(1.04);
}

.carousel-btn:active {
  transform: translateY(-50%) scale(0.98);
}

.carousel-btn.prev { left: 12px; }
.carousel-btn.next { right: 12px; }

.carousel-dots {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 12px;
  display: flex;
  justify-content: center;
  gap: 8px;
  padding: 0 12px;
}

.carousel-dots + .carousel-progress {
  /* move progress slightly below dots, while still inside slider */
  bottom: 8px;
}

.carousel-progress {
  position: absolute;
  left: 12px;
  right: 12px;
  bottom: 12px;
  height: 3px;
  border-radius: 999px;
  background: rgba(11, 27, 58, 0.14);
  overflow: hidden;
  pointer-events: none;
}

.carousel-progress span {
  display: block;
  height: 100%;
  width: 100%;
  transform-origin: left center;
  transform: scaleX(0);
  background: linear-gradient(135deg, var(--primary), var(--primary-2));
}

@keyframes carouselProgress {
  from { transform: scaleX(0); }
  to { transform: scaleX(1); }
}

.carousel-dot {
  width: 9px;
  height: 9px;
  border-radius: 999px;
  border: 1px solid rgba(11, 27, 58, 0.18);
  background: rgba(11, 27, 58, 0.18);
  cursor: pointer;
}

.carousel-dot[aria-current="true"] {
  width: 22px;
  background: linear-gradient(135deg, var(--primary), var(--primary-2));
  border-color: rgba(11, 95, 255, 0.22);
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .carousel-track { transition: none; }
  .mosaic-track { animation: none; }
  .btn, .course-col, .facilities-col, .campus-col img { transition: none; }
}

/* Footer */
.footer {
  margin-top: 32px;
  /* Dark footer like reference screenshot (keeps rest of site bright) */
  background:
    radial-gradient(900px 340px at 20% 0%, rgba(52, 179, 255, 0.16), transparent 60%),
    radial-gradient(900px 340px at 85% 20%, rgba(11, 95, 255, 0.14), transparent 60%),
    linear-gradient(180deg, #0a1632, #081126);
  border-top: 1px solid rgba(255, 255, 255, 0.10);
  color: rgba(255, 255, 255, 0.90);
  text-align: left;
  padding: 44px 10px 18px;
}

.footer-container {
  width: min(var(--max), 92%);
  margin: 0 auto;
  color: rgba(255, 255, 255, 0.78);
}

.footer p {
  margin: 6px 0;
  color: rgba(255, 255, 255, 0.72);
}

/* Professional footer layout (dark) */
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 34px;
  padding: 6px 0 26px;
}

.footer-brand-row {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 10px;
}

.footer-logo {
  width: 54px;
  height: 54px;
  border-radius: 14px;
  object-fit: cover;
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: rgba(255, 255, 255, 0.06);
}

.footer-tagline {
  font-size: 13px;
  color: rgba(255, 255, 255, 0.70);
  margin-top: 2px;
}

.footer-title {
  font-weight: 800;
  letter-spacing: 0.2px;
  color: rgba(255, 255, 255, 0.94);
}

.footer-subtitle {
  font-weight: 700;
  color: rgba(255, 255, 255, 0.92);
  margin-bottom: 10px;
}

.footer-text {
  margin: 0;
  color: rgba(255, 255, 255, 0.72);
  line-height: 1.7;
  font-size: 14px;
}

.footer-links {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 8px;
}

.footer-links a {
  display: inline-flex;
  color: rgba(255, 255, 255, 0.78);
  padding: 6px 0;
}

.footer-links a:hover {
  color: rgba(255, 255, 255, 0.94);
  text-decoration: underline;
}

.footer-contact {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 10px;
}

.footer-contact li {
  display: grid;
  grid-template-columns: 18px 1fr;
  gap: 10px;
  align-items: start;
  color: rgba(255, 255, 255, 0.72);
  font-size: 14px;
  line-height: 1.6;
}

.footer-contact i {
  margin-top: 2px;
  color: rgba(255, 255, 255, 0.80);
}

.footer-social {
  display: flex;
  gap: 10px;
  margin-top: 14px;
}

.social-btn {
  width: 40px;
  height: 40px;
  display: grid;
  place-items: center;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.12);
  color: rgba(255, 255, 255, 0.92);
}

.social-btn:hover {
  background: rgba(52, 179, 255, 0.18);
  border-color: rgba(52, 179, 255, 0.28);
}

.footer-bottom {
  margin-top: 18px;
  padding-top: 14px;
  border-top: 1px solid rgba(255, 255, 255, 0.10);
  display: flex;
  gap: 12px;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
}

.footer-copy {
  margin: 0;
  color: rgba(255, 255, 255, 0.60);
  font-size: 13px;
}

.footer-legal {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.footer-legal a {
  color: rgba(255, 255, 255, 0.64);
  font-size: 13px;
}

.footer-legal a:hover {
  color: rgba(255, 255, 255, 0.92);
  text-decoration: underline;
}

/* Responsive */
@media (max-width: 900px) {
  .row {
    grid-template-columns: 1fr;
  }

  .hero {
    padding-top: 110px;
  }

  .hero-split {
    grid-template-columns: 1fr;
  }

  .mosaic {
    height: 420px;
  }

  /* Mobile off-canvas menu */
  .nav-icon {
    display: inline-flex;
  }

  .nav-links {
    position: fixed;
    top: 0;
    right: -320px;
    height: 100vh;
    width: 320px;
    background: rgba(255, 255, 255, 0.92);
    border-left: 1px solid rgba(11, 27, 58, 0.10);
    padding: 16px;
    z-index: 1200;
    transition: right 220ms ease;
    display: block;
    backdrop-filter: blur(10px);
  }

  .nav-links ul {
    flex-direction: column;
    align-items: stretch;
    margin-top: 56px;
  }

  .nav-links a {
    border-radius: 12px;
    padding: 12px 14px;
    justify-content: flex-start;
  }

  .nav-icon.close {
    display: inline-flex;
    position: absolute;
    top: 12px;
    right: 12px;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    text-align: left;
  }
}

/* ------------------------------------------------------------
   Admin page (login) - matches site UI
   ------------------------------------------------------------ */
.admin-page {
  background: var(--bg);
}

.admin-main {
  width: min(var(--max), 92%);
  margin: 0 auto;
  padding: 120px 0 54px;
  min-height: calc(100vh - 240px);
  display: grid;
  place-items: start center;
}

.admin-card {
  width: min(520px, 100%);
  background: rgba(255, 255, 255, 0.92);
  border: 1px solid rgba(11, 27, 58, 0.12);
  border-radius: 20px;
  box-shadow: 0 18px 44px rgba(11, 27, 58, 0.14);
  padding: 22px 18px;
}

.admin-header {
  text-align: left;
  margin-bottom: 12px;
}

.admin-title {
  margin: 0;
  font-size: 28px;
  letter-spacing: -0.2px;
  color: rgba(11, 27, 58, 0.92);
}

.admin-sub {
  margin: 6px 0 0;
  color: rgba(11, 27, 58, 0.70);
  line-height: 1.6;
}

.admin-form {
  margin-top: 14px;
  display: grid;
  gap: 12px;
}

.admin-field span {
  display: block;
  text-align: left;
  font-weight: 600;
  font-size: 13px;
  color: rgba(11, 27, 58, 0.78);
  margin: 0 0 6px 2px;
}

.admin-field input {
  width: 100%;
  padding: 12px 12px;
  border-radius: 12px;
  border: 1px solid rgba(11, 27, 58, 0.16);
  background: #fff;
  color: rgba(11, 27, 58, 0.92);
  outline: none;
  font-size: 15px;
}

.admin-field input:focus {
  border-color: rgba(11, 95, 255, 0.35);
  box-shadow: 0 0 0 3px rgba(11, 95, 255, 0.15);
}

.admin-submit {
  width: 100%;
}

.admin-link {
  display: inline-block;
  margin-top: 12px;
  color: rgba(11, 95, 255, 0.92);
  font-weight: 600;
}

.admin-link:hover {
  text-decoration: underline;
}