/* =========================================
   DKC Consulting — Global Stylesheet
   Palette: Midnight Navy / Electric Blue / White
   ========================================= */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=Playfair+Display:wght@700;900&family=Crimson+Pro:ital,wght@0,400;1,400&display=swap');

:root {
  --bg-deep:     #0A1520;
  --bg-mid:      #0E1E30;
  --bg-card:     #112238;
  --accent:      #2561FF;
  --accent-glow: #2561FF33;
  --accent-2:    #90B4FF;
  --white:       #FFFFFF;
  --grey-light:  #B8C8D8;
  --grey-mid:    #4A5A70;
  --border:      #1E3F6A;
  --danger:      #FF4D4D;
  --success:     #00D084;

  --font-display: 'Playfair Display', serif;
  --font-body:    'Inter', sans-serif;
  --font-italic:  'Crimson Pro', serif;

  --radius:    8px;
  --radius-lg: 16px;
  --shadow:    0 4px 24px rgba(0,0,0,0.4);
  --transition: 0.25s ease;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-body);
  background: var(--bg-deep);
  color: var(--white);
  min-height: 100vh;
  line-height: 1.6;
}

/* ── NAVIGATION ─────────────────────────── */

nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(10,22,40,0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  padding: 0 2rem;
}

.nav-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.nav-logo {
  font-family: 'Playfair Display', serif;
  font-style: italic;
  font-size: 1.25rem;
  color: var(--accent-2);
  letter-spacing: 0.04em;
  text-decoration: none;
}

.nav-logo span { color: var(--white); }

.nav-links {
  display: flex;
  gap: 0.25rem;
  list-style: none;
}

.nav-links a {
  display: block;
  padding: 0.5rem 1rem;
  color: var(--grey-light);
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 500;
  letter-spacing: 0.04em;
  border-radius: var(--radius);
  transition: color var(--transition), background var(--transition);
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--white);
  background: var(--accent-glow);
}

.nav-links a.active { color: var(--accent-2); }

/* Hamburger */
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  background: none;
  border: none;
  padding: 4px;
}
.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--white);
  transition: var(--transition);
}

/* ── PAGE WRAPPER ───────────────────────── */

.page-wrapper {
  max-width: 1200px;
  margin: 0 auto;
  padding: 3rem 2rem 5rem;
}

/* ── PAGE HEADER ────────────────────────── */

.page-header {
  margin-bottom: 2.5rem;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid var(--border);
}

.page-header h1 {
  font-family: var(--font-display);
  font-size: clamp(1.6rem, 4vw, 2.4rem);
  color: var(--white);
  letter-spacing: 0.06em;
}

.page-header h1 span { color: var(--accent-2); }

.page-header p {
  margin-top: 0.5rem;
  color: var(--grey-light);
  font-size: 1rem;
}

/* ── BUTTONS ────────────────────────────── */

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.65rem 1.4rem;
  border-radius: var(--radius);
  font-family: var(--font-body);
  font-size: 0.9rem;
  font-weight: 600;
  letter-spacing: 0.03em;
  cursor: pointer;
  transition: var(--transition);
  text-decoration: none;
  border: none;
}

.btn-primary {
  background: var(--accent);
  color: var(--white);
}
.btn-primary:hover { background: #1557cc; box-shadow: 0 0 18px var(--accent-glow); }

.btn-outline {
  background: transparent;
  color: var(--accent-2);
  border: 1px solid var(--accent-2);
}
.btn-outline:hover { background: rgba(0,200,255,0.08); }

/* ── CARDS ──────────────────────────────── */

.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  transition: border-color var(--transition), transform var(--transition), box-shadow var(--transition);
}

.card:hover {
  border-color: var(--accent);
  transform: translateY(-2px);
  box-shadow: 0 8px 32px rgba(30,111,255,0.15);
}

/* ── FOOTER ─────────────────────────────── */

footer {
  border-top: 1px solid var(--border);
  text-align: center;
  padding: 1.5rem 2rem;
  color: var(--grey-mid);
  font-size: 0.82rem;
}

footer a { color: var(--grey-light); text-decoration: none; }
footer a:hover { color: var(--accent-2); }

/* ── FORMS ──────────────────────────────── */

.form-group {
  margin-bottom: 1.4rem;
}

.form-group label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--grey-light);
  letter-spacing: 0.04em;
  margin-bottom: 0.45rem;
}

.form-group label .required { color: var(--accent-2); margin-left: 2px; }

input[type="text"],
input[type="email"],
input[type="tel"],
textarea,
select {
  width: 100%;
  padding: 0.7rem 1rem;
  background: var(--bg-mid);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--white);
  font-family: var(--font-body);
  font-size: 0.95rem;
  transition: border-color var(--transition), box-shadow var(--transition);
  outline: none;
}

input:focus, textarea:focus, select:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-glow);
}

input.error, textarea.error { border-color: var(--danger); }

.field-error {
  color: var(--danger);
  font-size: 0.8rem;
  margin-top: 0.3rem;
  display: none;
}

.field-error.visible { display: block; }

textarea { resize: vertical; min-height: 120px; }

/* ── RADIO GROUP ────────────────────────── */

.radio-group {
  display: flex;
  gap: 1.5rem;
  margin-top: 0.45rem;
}

.radio-group label {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  cursor: pointer;
  font-size: 0.95rem;
  font-weight: 400;
  color: var(--white);
  letter-spacing: 0;
  margin: 0;
}

.radio-group input[type="radio"] {
  width: 18px;
  height: 18px;
  accent-color: var(--accent);
  cursor: pointer;
}

/* ── UTILS ──────────────────────────────── */

.tag {
  display: inline-block;
  padding: 0.2rem 0.7rem;
  background: var(--accent-glow);
  color: var(--accent-2);
  border: 1px solid rgba(0,200,255,0.3);
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.05em;
}

/* ── RESPONSIVE ─────────────────────────── */

@media (max-width: 768px) {
  .nav-toggle { display: flex; }

  .nav-links {
    display: none;
    position: absolute;
    top: 64px;
    left: 0;
    right: 0;
    background: var(--bg-deep);
    border-bottom: 1px solid var(--border);
    flex-direction: column;
    padding: 1rem;
    gap: 0;
  }

  .nav-links.open { display: flex; }

  .nav-links a {
    padding: 0.75rem 1rem;
    border-radius: var(--radius);
  }

  .page-wrapper { padding: 2rem 1rem 4rem; }
}