/* ----- ROOT & RESET (elegant compact variables) ----- */
:root {
  --primary: #ff3e7f;
  --primary-dark: #e62e6b;
  --secondary: #7b2bff;
  --accent: #00e5ff;
  --dark: #0f0f1c;
  --dark-soft: #16162a;
  --glass-white: rgba(255, 255, 255, 0.08);
  --glass-border: rgba(255, 255, 255, 0.12);
  --transition-smooth: all 0.25s cubic-bezier(0.2, 0.9, 0.4, 1.1);
}

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

body {
  font-family:
    "Inter",
    system-ui,
    -apple-system,
    "Segoe UI",
    sans-serif;
  background-color: var(--dark);
  color: #f0f0f0;
  scroll-behavior: smooth;
  overflow-x: hidden;
}

/* custom scrollbar */
::-webkit-scrollbar {
  width: 6px;
}
::-webkit-scrollbar-track {
  background: var(--dark-soft);
}
::-webkit-scrollbar-thumb {
  background: var(--primary);
  border-radius: 10px;
}

/* ----- gradient animated header (refined) ----- */
@keyframes gradientShift {
  0% {
    background-position: 0% 50%;
  }
  50% {
    background-position: 100% 50%;
  }
  100% {
    background-position: 0% 50%;
  }
}

.gradient-header {
  background: linear-gradient(
    125deg,
    var(--primary),
    var(--secondary),
    var(--accent),
    #a14eff
  );
  background-size: 300% 300%;
  animation: gradientShift 12s ease infinite;
  position: relative;
  isolation: isolate;
}

.logo {
  font-size: 2.8rem;
  font-weight: 800;
  letter-spacing: -0.5px;
  background: linear-gradient(135deg, #fff, rgba(255, 255, 240, 0.9));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  text-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
}

/* floating music icons (fewer & subtle) */
.music-icon {
  position: absolute;
  font-size: 1.6rem;
  opacity: 0.2;
  animation: floatSoft 8s infinite ease-in-out;
  pointer-events: none;
}
@keyframes floatSoft {
  0% {
    transform: translateY(0px) rotate(0deg);
  }
  50% {
    transform: translateY(-15px) rotate(5deg);
  }
  100% {
    transform: translateY(0px) rotate(0deg);
  }
}

/* Navbar — compact, glassmorphism */
.nav-custom {
  background: rgba(15, 15, 28, 0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--glass-border);
  transition: 0.2s;
}
.nav-link-custom {
  color: #f5f5f7;
  font-weight: 500;
  padding: 8px 18px;
  border-radius: 40px;
  transition: var(--transition-smooth);
  font-size: 0.95rem;
  letter-spacing: -0.2px;
}
.nav-link-custom i {
  font-size: 0.9rem;
  margin-right: 8px;
}
.nav-link-custom:hover {
  background: var(--primary);
  color: white;
  transform: translateY(-2px);
  box-shadow: 0 6px 14px rgba(255, 62, 127, 0.3);
}

/* Hero section — clean & compact */
.hero {
  min-height: 55vh;
  background:
    linear-gradient(117deg, rgba(0, 0, 0, 0.65), rgba(0, 0, 0, 0.4)),
    url("https://images.unsplash.com/photo-1511379938547-c1f69419868d?ixlib=rb-4.0.3&auto=format&fit=crop&w=1470&q=80")
      center/cover no-repeat;
  display: flex;
  align-items: center;
  position: relative;
}
.hero-content h1 {
  font-size: 3rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  text-shadow: 0 2px 12px rgba(0, 0, 0, 0.4);
}
@media (min-width: 768px) {
  .hero-content h1 {
    font-size: 3.6rem;
  }
}
.cta-button {
  background: var(--accent);
  color: #0a0a18;
  padding: 12px 32px;
  border-radius: 40px;
  font-weight: 700;
  transition: var(--transition-smooth);
  display: inline-block;
  box-shadow: 0 8px 20px rgba(0, 229, 255, 0.25);
  letter-spacing: -0.2px;
}
.cta-button:hover {
  transform: translateY(-3px);
  background: #00c8e0;
  box-shadow: 0 12px 24px rgba(0, 229, 255, 0.4);
  color: #000;
}

/* login boxes (compact elegance) */
.login-box {
  background: rgba(22, 22, 42, 0.7);
  backdrop-filter: blur(12px);
  border-radius: 28px;
  border: 1px solid var(--glass-border);
  transition:
    transform 0.25s ease,
    box-shadow 0.3s;
}
.login-box:hover {
  transform: translateY(-6px);
  box-shadow: 0 20px 30px -12px rgba(0, 0, 0, 0.5);
  border-color: rgba(255, 62, 127, 0.4);
}
.icon-container {
  width: 70px;
  height: 70px;
  background: linear-gradient(145deg, var(--primary), var(--secondary));
  border-radius: 50%;
  font-size: 2rem;
  transition: 0.2s;
}
.login-btn {
  color: #ffffff;
  background: linear-gradient(100deg, var(--primary), var(--secondary));
  padding: 10px 28px;
  border-radius: 40px;
  font-weight: 600;
  transition: var(--transition-smooth);
  box-shadow: 0 4px 12px rgba(123, 43, 255, 0.3);
}
.login-btn:hover {
  transform: scale(1.02);
  box-shadow: 0 8px 20px rgba(123, 43, 255, 0.5);
}

/* section backgrounds (fixed removed -> better performance) */
.section-bg {
  position: relative;
  background-size: cover;
  background-position: center;
}
.section-bg::before {
  content: "";
  position: absolute;
  inset: 0;
  background: rgba(10, 10, 20, 0.88);
  backdrop-filter: blur(1px);
}
.section-title {
  font-size: 2.3rem;
  font-weight: 700;
  background: linear-gradient(125deg, var(--accent), var(--primary));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  display: inline-block;
  letter-spacing: -0.3px;
}

/* courses card grid — modern, compact & elegant */
.course-card {
  background: rgba(255, 255, 255, 0.06);
  backdrop-filter: blur(10px);
  border-radius: 28px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  transition: all 0.3s ease;
  height: 100%;
  overflow: hidden;
}
.course-card:hover {
  transform: translateY(-5px);
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 62, 127, 0.3);
  box-shadow: 0 20px 28px -12px rgba(0, 0, 0, 0.5);
}
.course-name {
  font-size: 1.45rem;
  font-weight: 700;
  background: linear-gradient(135deg, #fff, var(--accent));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  letter-spacing: -0.3px;
}
.teacher-avatar-card {
  width: 42px;
  height: 42px;
  border-radius: 100px;
  object-fit: cover;
  border: 2px solid var(--accent);
}
.hours-badge {
  background: rgba(0, 229, 255, 0.15);
  padding: 6px 12px;
  border-radius: 60px;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--accent);
  border: 1px solid rgba(0, 229, 255, 0.3);
}
.course-meta-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}
.course-meta-grid div {
  min-width: 0;
  padding: 10px 12px;
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.07);
}
.course-meta-grid span,
.course-teachers span {
  display: block;
  color: var(--accent);
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
}
.course-meta-grid strong,
.course-teachers strong {
  display: block;
  color: #ffffff;
  font-size: 0.9rem;
  line-height: 1.25;
  overflow-wrap: anywhere;
}
.course-teacher-list {
  display: grid;
  gap: 8px;
}
.course-teacher {
  display: flex;
  align-items: center;
  gap: 9px;
  min-width: 0;
}
.course-teacher img,
.course-teacher-placeholder {
  width: 34px;
  height: 34px;
  flex: 0 0 34px;
  border-radius: 50%;
}
.course-teacher img {
  object-fit: cover;
  border: 1px solid rgba(0, 229, 255, 0.55);
}
.course-teacher-placeholder {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: rgba(255, 255, 255, 0.72);
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.12);
  font-size: 0.82rem;
}
.course-schedule {
  display: grid;
  gap: 7px;
  color: rgba(255, 255, 255, 0.8);
  font-size: 0.86rem;
}
.enroll-card-btn {
  background: transparent;
  border: 1.5px solid var(--accent);
  border-radius: 40px;
  padding: 8px 18px;
  font-weight: 600;
  transition: 0.2s;
  color: var(--accent);
}
.enroll-card-btn:hover {
  background: var(--accent);
  color: var(--dark);
  border-color: var(--accent);
}

/* event cards refinement */
.event-card {
  background: rgba(18, 18, 32, 0.75);
  backdrop-filter: blur(10px);
  border-radius: 26px;
  overflow: hidden;
  transition: all 0.3s;
  border: 1px solid rgba(255, 255, 255, 0.08);
}
.event-card:hover {
  transform: translateY(-6px);
  border-color: rgba(255, 62, 127, 0.4);
  box-shadow: 0 25px 30px -14px black;
}
.event-img {
  height: 190px;
  object-fit: cover;
  width: 100%;
  transition: transform 0.4s;
}
.event-card:hover .event-img {
  transform: scale(1.02);
}
.event-date {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--accent);
  letter-spacing: 0.3px;
}
.event-btn {
  color: #ffffff;
  background: linear-gradient(95deg, var(--primary), var(--secondary));
  border-radius: 50px;
  padding: 8px 22px;
  font-weight: 500;
  transition: all 0.2s;
}
.event-btn:hover {
  transform: translateY(-2px);
  filter: brightness(1.05);
}
.event-detail-hero {
  min-height: 520px;
  display: flex;
  align-items: center;
}
.event-detail-back {
  color: var(--accent);
  font-size: 0.92rem;
  font-weight: 600;
}
.event-detail-back:hover {
  color: #ffffff;
}
.event-detail-title {
  font-size: 2.7rem;
  line-height: 1.08;
  letter-spacing: 0;
}
.event-detail-summary {
  max-width: 720px;
  font-size: 1.05rem;
}
.event-detail-media {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 26px;
  overflow: hidden;
  box-shadow: 0 24px 40px -18px rgba(0, 0, 0, 0.8);
}
.event-detail-media img {
  display: block;
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
}
.event-detail-panel {
  background: rgba(18, 18, 32, 0.75);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 26px;
  backdrop-filter: blur(10px);
}
.event-detail-text {
  line-height: 1.75;
}
.event-info-list,
.event-schedule {
  display: grid;
  gap: 14px;
}
.event-info-item,
.event-schedule-item {
  display: flex;
  gap: 14px;
  padding: 14px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}
.event-info-item:last-child,
.event-schedule-item:last-child {
  border-bottom: 0;
}
.event-info-item i {
  width: 36px;
  height: 36px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex: 0 0 36px;
  border-radius: 50%;
  color: var(--dark);
  background: var(--accent);
}
.event-info-item span,
.event-schedule-item span {
  display: block;
  color: var(--accent);
  font-size: 0.78rem;
  font-weight: 700;
  text-transform: uppercase;
}
.event-info-item strong,
.event-schedule-item strong {
  display: block;
  color: #ffffff;
  font-size: 1rem;
}
.event-schedule-item {
  display: grid;
  grid-template-columns: minmax(120px, 0.8fr) minmax(160px, 1fr);
  align-items: start;
}
.event-schedule-item small {
  grid-column: 1 / -1;
  color: rgba(255, 255, 255, 0.72);
}
@media (max-width: 767.98px) {
  .event-detail-title {
    font-size: 2.1rem;
  }
  .event-detail-hero {
    min-height: auto;
  }
  .event-schedule-item {
    grid-template-columns: 1fr;
    gap: 4px;
  }
}
.outline-btn {
  background: transparent;
  border: 1.5px solid var(--accent);
  border-radius: 60px;
  color: var(--accent);
  padding: 10px 28px;
  font-weight: 600;
}
.outline-btn:hover {
  background: var(--accent);
  color: #0a0a1a;
  border-color: var(--accent);
}

/* footer compact */
.footer-custom {
  background: #090911;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
}
.footer-logo {
  font-size: 1.8rem;
  font-weight: 800;
  background: linear-gradient(125deg, var(--primary), var(--accent));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.social-link {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.05);
  transition: 0.2s;
  font-size: 1.2rem;
}
.social-link:hover {
  background: var(--primary);
  transform: translateY(-4px);
}

/* helper compact spacing */
.section-padding {
  padding: 4rem 0;
}
@media (max-width: 768px) {
  .section-padding {
    padding: 3rem 0;
  }
  .logo {
    font-size: 2rem;
  }
  .section-title {
    font-size: 1.9rem;
  }
}
.text-accent {
  color: var(--accent);
}
.btn:focus,
.nav-link-custom:focus {
  outline: none;
  box-shadow: 0 0 0 2px rgba(0, 229, 255, 0.5);
}