/* ===== THEME (tweak these to match edfest.org exactly) ===== */
:root{
  --brand-ink: #0f1a2b;   /* deep navy */
  --brand-deep: #1f2a44;  /* slate/blue */
  --brand-indigo: #3b5bdb;/* indigo accent */
  --brand-cyan: #3dd6d0;  /* cyan accent */
  --surface: #ffffff;     /* cards */
  --text: #1d2733;        /* body text */
  --muted: #5a6b7b;       /* secondary text */
  --bg: #eef2f7;          /* page background */
  --radius: 14px;
  --shadow-1: 0 6px 18px rgba(16, 24, 40, 0.08);
  --shadow-2: 0 10px 30px rgba(16, 24, 40, 0.12);
}

/* Page background: subtle gradient wash */
body{
  background:
    radial-gradient(1200px 600px at 10% -10%, rgba(59,91,219,0.08), transparent 70%),
    radial-gradient(1000px 500px at 110% 10%, rgba(61,214,208,0.08), transparent 65%),
    var(--bg);
  color: var(--text);
}

/* ===== HEADER: more padding, gradient, soft shadow ===== */
header{
  /* more breath on left/right + vertical */
  padding: 28px 28px;                 /* ↑ increased spacing */
  margin-bottom: 28px;

  /* tasteful gradient bar */
  background: linear-gradient(135deg, var(--brand-ink) 0%, var(--brand-deep) 55%, var(--brand-indigo) 110%);
  color: #ecf0f1;

  /* depth */
  box-shadow: var(--shadow-1);
  border-bottom: 1px solid rgba(255,255,255,0.08);
}
header h1{
  max-width: 980px;                   /* keeps line length pleasant */
  margin: 0 auto;                     /* center text block */
  letter-spacing: 0.2px;
  line-height: 1.25;
}

/* ===== MAIN LAYOUT ===== */
main{
  max-width: 980px;
  margin: 0 auto;
  padding: 0 16px 24px;
}

/* Card-like sections */
section{
  background: var(--surface);
  border-radius: var(--radius);
  padding: 20px 20px;
  margin-bottom: 22px;
  box-shadow: var(--shadow-1);
  border: 1px solid rgba(16,24,40,0.06);
}
section h2{
  color: var(--brand-ink);
  margin-bottom: 8px;
  font-size: 1.35em;
}
section p{
  color: var(--text);
  margin-bottom: 14px;
}
ul{ margin-left: 20px; margin-top: 10px; }

/* Links: accent + subtle underlines */
a{
  color: var(--brand-indigo);
  text-decoration: none;
  border-bottom: 1px solid rgba(59,91,219,0.35);
}
a:hover{ border-bottom-color: rgba(59,91,219,0.7); }

/* Feedback form polish */
textarea{
  width: 90%;
  max-width: 90%;
  font: inherit;
  padding: 12px 14px;
  line-height: 1.45;
  border-radius: 10px;
  border: 1px solid rgba(16,24,40,0.18);
  box-shadow: inset 0 1px 2px rgba(16,24,40,0.04);
  background: #fff;
}
textarea:focus{
  outline: none;
  border-color: var(--brand-indigo);
  box-shadow: 0 0 0 3px rgba(59,91,219,0.15);
}

/* Button */
button[type="submit"]{
  appearance: none;
  border: 0;
  border-radius: 999px;
  padding: 10px 16px;
  font-weight: 600;
  background: linear-gradient(135deg, var(--brand-indigo), var(--brand-cyan));
  color: white;
  box-shadow: var(--shadow-2);
  cursor: pointer;
  transition: transform .04s ease, box-shadow .2s ease, opacity .2s ease;
}
button[type="submit"]:hover{
  box-shadow: 0 14px 36px rgba(16,24,40,0.14);
}
button[type="submit"]:active{
  transform: translateY(1px);
}

/* Footer: light and quiet */
footer{
  max-width: 980px;
  margin: 16px auto 0;
  padding: 12px 16px;
  color: var(--muted);
  text-align: center;
  font-size: 0.95em;
  opacity: 0.9;
  background: transparent;
}