@import url('https://fonts.googleapis.com/css2?family=DM+Sans:wght@300;400;500;600&family=DM+Serif+Display:ital@0;1&display=swap');

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

:root {
  --navy:    #1e2d40;
  --navy2:   #2c3e55;
  --slate:   #4a5568;
  --blue:    #2563eb;
  --blue-l:  #dbeafe;
  --accent:  #0ea5e9;
  --bg:      #f8f9fb;
  --white:   #ffffff;
  --text:    #1a202c;
  --muted:   #64748b;
  --border:  #e2e8f0;
  --border2: #cbd5e1;
  --sans: 'DM Sans', system-ui, sans-serif;
  --serif: 'DM Serif Display', Georgia, serif;
}

body.dark {
  --navy:    #60a5fa;
  --navy2:   #93c5fd;
  --slate:   #94a3b8;
  --blue:    #60a5fa;
  --blue-l:  #1e3a5f;
  --accent:  #38bdf8;
  --bg:      #0f1117;
  --white:   #1a1f2e;
  --text:    #e2e8f0;
  --muted:   #94a3b8;
  --border:  #2d3748;
  --border2: #4a5568;
}

body.dark nav {
  background: rgba(15,17,23,0.97);
}

body.dark .hero {
  background: var(--white);
}

body.dark footer {
  background: var(--white);
}

body.dark .profile-header,
body.dark .form-card-header {
  background: #0d1b2a;
}

body.dark .profile-initials {
  background: rgba(255,255,255,0.07);
  border-color: rgba(255,255,255,0.12);
}

body.dark .form-body input,
body.dark .form-body textarea {
  background: #0f1117;
  border-color: var(--border);
  color: var(--text);
}

body.dark .form-body input:focus,
body.dark .form-body textarea:focus {
  background: #1a1f2e;
}

body.dark .btn-primary {
  background: #1d4ed8;
}
body.dark .btn-primary:hover {
  background: #1e40af;
}

body.dark .btn-outline {
  border-color: var(--border2);
  color: var(--text);
}
body.dark .btn-outline:hover {
  border-color: var(--blue);
  background: var(--blue-l);
}

/* Dark mode toggle button */
.dark-toggle {
  background: none;
  border: 1.5px solid var(--border2);
  border-radius: 6px;
  width: 34px;
  height: 34px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--muted);
  transition: border-color 0.15s, color 0.15s, background 0.15s;
  flex-shrink: 0;
}
.dark-toggle:hover {
  border-color: var(--blue);
  color: var(--blue);
  background: var(--blue-l);
}
.dark-toggle svg {
  width: 16px;
  height: 16px;
  fill: none;
  stroke: currentColor;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
  transition: opacity 0.15s;
}
.icon-sun, .icon-moon { position: absolute; }
.icon-sun  { opacity: 1; }
.icon-moon { opacity: 0; }
body.dark .icon-sun  { opacity: 0; }
body.dark .icon-moon { opacity: 1; }
.dark-toggle { position: relative; }

html { scroll-behavior: smooth; }
body { font-family: var(--sans); background: var(--bg); color: var(--text); font-size: 15px; line-height: 1.65; min-height: 100vh; display: flex; flex-direction: column; }

/* ── NAV ─────────────────────────────────────────── */
nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  background: rgba(255,255,255,0.97);
  border-bottom: 1px solid var(--border);
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 3rem; height: 60px;
}
.nav-brand {
  font-family: var(--serif); font-size: 1.05rem; color: var(--navy);
  text-decoration: none; letter-spacing: 0.01em;
}
.nav-brand span { color: var(--blue); }
.nav-links { display: flex; gap: 0.25rem; list-style: none; }
.nav-links a {
  font-size: 0.82rem; font-weight: 500; color: var(--muted); text-decoration: none;
  padding: 0.35rem 0.9rem; border-radius: 6px; transition: color 0.15s, background 0.15s; letter-spacing: 0.01em;
}
.nav-links a:hover { color: var(--navy); background: var(--bg); }
.nav-links a.active { color: var(--blue); background: var(--blue-l); }

/* ── PAGE WRAP ───────────────────────────────────── */
.page-wrap { max-width: 900px; margin: 0 auto; padding: 6.5rem 2.5rem 4rem; flex: 1; }

/* ── SECTION HEADER ──────────────────────────────── */
.sec-eyebrow {
  display: flex; align-items: center; gap: 0.6rem; margin-bottom: 0.6rem;
}
.sec-eyebrow::before { content: ''; display: block; width: 24px; height: 2px; background: var(--blue); border-radius: 1px; }
.sec-eyebrow span { font-size: 0.72rem; font-weight: 600; color: var(--blue); letter-spacing: 0.1em; text-transform: uppercase; }
h1.page-title { font-family: var(--serif); font-size: 2.6rem; color: var(--navy); line-height: 1.15; margin-bottom: 1rem; font-weight: 400; }
h2.page-title { font-family: var(--serif); font-size: 2rem; color: var(--navy); line-height: 1.2; margin-bottom: 2rem; font-weight: 400; }

/* ── BUTTONS ─────────────────────────────────────── */
.btn { display: inline-block; font-size: 0.83rem; font-weight: 500; padding: 0.55rem 1.35rem; border-radius: 6px; text-decoration: none; transition: all 0.15s; cursor: pointer; border: none; letter-spacing: 0.01em; }
.btn-primary { background: var(--navy); color: #fff; }
.btn-primary:hover { background: var(--navy2); }
.btn-outline { background: transparent; color: var(--navy); border: 1.5px solid var(--border2); }
.btn-outline:hover { border-color: var(--navy); background: var(--white); }

/* ── PAGE NAV ────────────────────────────────────── */
.page-nav { display: flex; justify-content: space-between; align-items: center; margin-top: 3.5rem; padding-top: 2rem; border-top: 1px solid var(--border); }
.page-nav a { font-size: 0.82rem; font-weight: 500; color: var(--muted); text-decoration: none; display: flex; align-items: center; gap: 0.4rem; transition: color 0.15s; }
.page-nav a:hover { color: var(--blue); }
.page-nav .spacer { flex: 1; }

/* ── FOOTER ──────────────────────────────────────── */
footer {
  border-top: 1px solid var(--border); background: var(--white);
  padding: 1.5rem 3rem; display: flex; align-items: center; justify-content: space-between;
}
.foot-copy { font-size: 0.78rem; color: var(--muted); }
.foot-right { font-size: 0.78rem; color: var(--muted); }

/* ── DIVIDER ─────────────────────────────────────── */
.divider { height: 1px; background: var(--border); margin: 2.5rem 0; }

@media (max-width: 700px) {
  nav { padding: 0 1.5rem; }
  .nav-links { display: none; }
  .page-wrap { padding: 5.5rem 1.5rem 3rem; }
  footer { padding: 1.25rem 1.5rem; }
}