/* ---- Base + Theme -------------------------------------------------------- */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;600;700&display=swap');

:root{
  --sidebar-w: clamp(240px, 20vw, 320px);
  --bg-1: #0a0f1f;
  --bg-2: #0f2747;
  --card: rgba(255,255,255,0.05);
  --card-bd: rgba(255,255,255,0.12);
  --text: #e8eef8;
  --muted: #aab7d0;
  --accent: #8b5cf6;
  --accent-2: #22d3ee;
  --radius: 16px;
  --gutter: 24px;
}

/* Contact form legibility (dark navy text on light background) */
.contact-form,
.contact-form label,
.contact-form input,
.contact-form textarea {
  color: var(--bg-2); /* dark navy from the site palette */
}

.contact-form input::placeholder,
.contact-form textarea::placeholder {
  /* fallback color that’s slightly lighter than --bg-2 for placeholders */
  color: #3a536f;
  opacity: 1; /* ensure consistent placeholder contrast across browsers */
}

.contact-form .form-group input,
.contact-form .form-group textarea {
  background: #fff;                 /* crisp against navy text */
  border-color: #c9d3e3;            /* subtle, higher-contrast border */
}

* { box-sizing: border-box; }
html, body { height: 100%; }
body{
  margin: 0;
  font-family: 'Inter', system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
  color: var(--text);
  background:
    radial-gradient(1200px 600px at 80% -100px, #1e3a8a22, transparent 60%),
    linear-gradient(160deg, var(--bg-1), var(--bg-2));
}

/* ---- Layout -------------------------------------------------------------- */
.layout{
  display: grid;
  grid-template-columns: var(--sidebar-w) 1fr;
  min-height: 100vh;
}

/* ---- Sidebar ------------------------------------------------------------- */
.sidebar{
  position: sticky; top: 0;
  height: 100vh;
  background:
    linear-gradient(180deg, rgba(255,255,255,0.05), rgba(255,255,255,0.02));
  border-right: 1px solid var(--card-bd);
  padding: 28px 18px;
  display: flex; flex-direction: column; gap: 20px;
  backdrop-filter: blur(10px);
}
.brand{
  display: grid; gap: 8px;
}
.brand h1{
  font-size: 20px; margin: 0; letter-spacing: 0.2px;
}
.brand p{
  margin: 0; color: var(--muted); font-size: 13px;
}
.side-nav{ display: grid; gap: 8px; margin-top: 8px; }
.side-nav a{
  display: flex; align-items: center; gap: 10px;
  padding: 12px 12px;
  text-decoration: none;
  color: var(--text);
  border-radius: 10px;
  border: 1px solid transparent;
  transition: transform .15s ease, background-color .2s ease, border-color .2s ease;
}
.side-nav a::before{
  content: "";
  display: inline-block;
  width: 24px;
  height: 24px;
  flex-shrink: 0;
  background-repeat: no-repeat;
  background-position: center;
  background-size: contain;
  filter: drop-shadow(0 0 0 rgba(0,0,0,0));
}
.side-nav a[data-icon="double-arc"]::before{ background-image: url('media/icons/icon-stack.svg'); }
.side-nav a[data-icon="corner"]::before{ background-image: url('media/icons/icon-menu.svg'); }
.side-nav a[data-icon="s-curve"]::before{ background-image: url('media/icons/icon-arrow.svg'); }
.side-nav a[data-icon="broadcast"]::before{ background-image: url('media/icons/icon-arc-base.svg'); }
.side-nav a[data-icon="stack"]::before{ background-image: url('media/icons/icon-corner.svg'); }
.side-nav a[data-icon="arc-base"]::before{ background-image: url('media/icons/icon-double-arc.svg'); }
.side-nav a[data-icon="menu"]::before{ background-image: url('media/icons/icon-s-curve.svg'); }
.side-nav a[data-icon="arrow"]::before{ background-image: url('media/icons/icon-s-curve.svg'); }
.side-nav a[data-icon="calendar"]::before{ background-image: url('media/icons/icon-calendar.svg'); }
.side-nav a:hover{
  background: var(--card);
  border-color: var(--card-bd);
  transform: translateX(2px);
}
.side-nav a.meeting-cta{
  margin-top: 4px;
  font-weight: 600;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: #0b1022;
  border-color: transparent;
  box-shadow: 0 12px 28px rgba(34, 211, 238, 0.18);
}
.side-nav a.meeting-cta:hover{
  transform: translateY(-2px);
  background: linear-gradient(135deg, #a855f7, #38e1ff);
  box-shadow: 0 16px 36px rgba(139, 92, 246, 0.28);
  border-color: transparent;
}
.side-nav .small{
  margin-top: auto;
  color: var(--muted);
  font-size: 12px;
}

/* ---- Main content shell -------------------------------------------------- */
.main{
  overflow-x: hidden;
}

/* ---- Header (kept, restyled only) --------------------------------------- */
.header{
  position: relative;
  text-align: center;
  background:
    radial-gradient(120% 140% at 80% 0%, rgba(34, 211, 238, 0.22), transparent 60%),
    radial-gradient(140% 160% at 10% 10%, rgba(139, 92, 246, 0.2), transparent 55%),
    linear-gradient(160deg, var(--bg-1), var(--bg-2));
  color: white;
}
.header::after{
  content:""; position: absolute; inset: 0; z-index: 0;
  background: linear-gradient(180deg, rgba(0,0,0,0.35), rgba(0,0,0,0.55));
}
.header > *{ position: relative; z-index: 1; }
.hero-network{
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
}
.hero-network canvas{
  width: 100%;
  height: 100%;
  display: block;
  filter: saturate(115%) contrast(105%);
}
.header h1{ margin: 0 0 6px 0; font-size: 42px; }
.header p{ margin: 0 0 14px 0; font-size: 16px; color: #f0f3ff; opacity: 0.9; }

.profile-frame{
  position: absolute;
  bottom: -95px;
  left: clamp(32px, 12vw, 160px);
  width: 176px;
  height: 176px;
  border-radius: 50%;
  overflow: hidden;
  border: 4px solid white;
  background: #fff;
  box-shadow: 0 18px 38px rgba(8, 20, 46, 0.35);
}
.profile-frame img{
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 45%;
  display: block;
}

/* ---- Intro text (merged About + original intro-text) -------------------- */
.intro-wrap{
  max-width: 980px; margin: 96px auto 24px; padding: 0 24px;
}
.intro-text{
  padding: 16px 20px;
  line-height: 1.7;
  background: var(--card);
  border: 1px solid var(--card-bd);
  border-radius: 14px;
}

/* ---- Sections (general) -------------------------------------------------- */
.section,
.content-section{
  padding: 32px 24px;
}

/* ---- Intro section (structure unchanged; only shorter copy) ------------- */
.column{
  float: left; width: 33.33%; padding: 15px; box-sizing: border-box;
  display: flex; flex-direction: column;
}
.column-text{
  height: 200px; overflow-y: auto;
  background: var(--card);
  border: 1px solid var(--card-bd);
  border-radius: 12px;
  padding: 14px;
}
.column-text h2{ margin-top: 6px; }
.column-image{
  width: 100%; height: 200px; overflow: hidden; margin: 15px 0; border-radius: 12px;
  border: 1px solid var(--card-bd);
}
.column-image img{ width: 100%; height: 100%; object-fit: cover; }

/* ---- Carousel: Courses & Activities ------------------------------------- */
#courses .section-title{
  max-width: 980px; margin: 0 auto 12px; padding: 0 24px;
}
.carousel{
  max-width: 1100px; margin: 0 auto 12px;
  background: var(--card);
  border: 1px solid var(--card-bd);
  border-radius: var(--radius);
  overflow: hidden;
}
.carousel-track{
  display: flex;
  will-change: transform;
  transition: transform .6s ease;
}
.slide{
  min-width: 100%;
  display: grid; grid-template-rows: auto 1fr;
}
.slide figure{
  margin: 0; height: clamp(280px, 52vh, 560px);
  position: relative; overflow: hidden;
}
.slide img{
  width: 100%; height: 100%; object-fit: cover;
  transform: scale(1.02);
}
.slide .caption{
  padding: 16px 18px 22px;
  display: grid; gap: 6px;
  border-top: 1px solid var(--card-bd);
}
.slide .caption h3{
  margin: 4px 0 0; font-size: 20px;
}
.slide .caption p{
  margin: 0; color: var(--muted);
}

/* ---- Contact form (left UNMODIFIED from original styles) ---------------- */
.contact-form {
  max-width: 600px;
  margin: 20px auto;
  padding: 12px;
  background: #f9f9f9;
  border-radius: 8px;
  box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}
.form-group { margin-bottom: 8px; }
.form-group label {
  display: block; margin-bottom: 4px; font-weight: bold;
}
.form-group input, .form-group textarea {
  width: 100%; padding: 10px; border: 1px solid #ddd; border-radius: 4px; font-size: 16px;
}
.contact-form button {
  background-color: #4a4a4a; color: white; border: none; padding: 12px 20px; border-radius: 4px; cursor: pointer; font-size: 16px;
}
.contact-form button:hover { background-color: #333; }

/* ---- Footer -------------------------------------------------------------- */
.footer{
  text-align: center; padding: 12px; color: var(--muted);
}

/* ---- Utilities ----------------------------------------------------------- */
.container{ max-width: 1100px; margin: 0 auto; }

/* ---- Responsive ---------------------------------------------------------- */
@media (max-width: 980px){
  .layout{ grid-template-columns: 1fr; }
  .sidebar{
    position: fixed; inset: 0 auto 0 0; width: var(--sidebar-w);
    transform: translateX(-100%); transition: transform .25s ease;
    z-index: 1000;
  }
  .sidebar.open{ transform: translateX(0); }
  .menu-toggle{
    position: fixed; top: 14px; left: 14px; z-index: 1100;
    background: var(--card); border: 1px solid var(--card-bd);
    color: var(--text); border-radius: 10px; padding: 10px 12px; cursor: pointer;
    transition: left .25s ease; /* smooth nudge with the drawer */

  }
  .intro-wrap{ margin-top: 20px; }
  .column{ width: 100%; float: none; }
  .column-text{ height: auto; }
  .header{ padding: 72px 16px 120px; }
  .profile-frame{
    position: static;
    width: 130px;
    height: 130px;
    margin: 0 auto 24px;
    box-shadow: 0 12px 28px rgba(8, 20, 46, 0.25);
  }
  .intro-wrap{ margin-top: 0; }
  
}

/* Clearfix for columns container */
.section::after{ content:""; display: table; clear: both; }