/* ── BasaApp Shared Styles ── */
:root {
  --navy:      #001E64;
  --navy-deep: #001040;
  --cyan:      #00B4DC;
  --cyan-dark: #0090b0;
  --text:      #0a1628;
  --text-mid:  #3d4f6e;
  --text-muted:#7a8fa8;
  --bg:        #ffffff;
  --bg-light:  #f4f7fb;
  --border:    #e2e8f4;
  --radius:    16px;
  --radius-sm: 10px;
  --shadow:    0 2px 16px rgba(0,30,100,0.08);
  --shadow-lg: 0 12px 40px rgba(0,30,100,0.14);
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }

body {
  font-family: 'DM Sans', sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  overflow-x: hidden;
}

/* ── Container ── */
.container {
  max-width: 1160px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ── Navigation ── */
.nav {
  position: fixed; top: 0; left: 0; right: 0;
  z-index: 100;
  background: rgba(255,255,255,0.92);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
  transition: box-shadow .3s;
}
.nav.scrolled { box-shadow: var(--shadow); }

.nav-inner {
  display: flex; align-items: center;
  height: 68px; gap: 32px;
}

.nav-logo { display: flex; align-items: center; text-decoration: none; }
.nav-logo-img { height: 40px; width: auto; }

.nav-links {
  display: flex; align-items: center; gap: 6px;
  margin-left: auto;
}

.nav-link {
  text-decoration: none; color: var(--text-mid);
  font-size: 0.9rem; font-weight: 500;
  padding: 7px 14px; border-radius: 8px;
  transition: all .18s;
}
.nav-link:hover, .nav-link.active {
  color: var(--navy); background: rgba(0,30,100,0.06);
}
.nav-admin {
  background: var(--navy); color: #fff !important;
  border-radius: 8px;
}
.nav-admin:hover {
  background: var(--navy-deep) !important;
  color: #fff !important;
}

/* mobile toggle */
.nav-toggle {
  display: none; flex-direction: column; gap: 5px;
  background: none; border: none; cursor: pointer;
  padding: 4px; margin-left: auto;
}
.nav-toggle span {
  display: block; width: 22px; height: 2px;
  background: var(--navy); border-radius: 2px;
  transition: all .25s;
}
.nav-toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.open span:nth-child(2) { opacity: 0; }
.nav-toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

@media(max-width: 768px) {
  .nav-toggle { display: flex; }
  .nav-links {
    position: fixed; top: 68px; left: 0; right: 0;
    background: #fff; border-bottom: 1px solid var(--border);
    flex-direction: column; align-items: stretch;
    padding: 16px 24px 24px; gap: 4px;
    display: none; box-shadow: var(--shadow);
  }
  .nav-links.open { display: flex; }
  .nav-link { padding: 12px 16px; }
}

/* ── Section shared ── */
.section-head { text-align: center; max-width: 620px; margin: 0 auto; }
.section-tag {
  display: inline-block;
  background: rgba(0,180,220,0.08); color: var(--cyan-dark);
  border: 1px solid rgba(0,180,220,0.2);
  font-size: 0.75rem; font-weight: 700;
  letter-spacing: 0.1em; text-transform: uppercase;
  padding: 5px 14px; border-radius: 50px;
  margin-bottom: 16px;
}
.section-title {
  font-family: 'Fraunces', serif;
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  font-weight: 900; line-height: 1.12;
  color: var(--navy); margin-bottom: 14px;
  letter-spacing: -0.02em;
}
.section-title em { font-style: italic; color: var(--cyan-dark); }
.section-sub { font-size: 1rem; color: var(--text-mid); line-height: 1.65; }

/* ── Buttons ── */
.btn-primary {
  display: inline-flex; align-items: center; gap: 8px;
  background: var(--navy); color: #fff;
  padding: 13px 28px; border-radius: 12px;
  font-weight: 600; font-size: 0.95rem;
  text-decoration: none; border: 2px solid var(--navy);
  cursor: pointer; transition: all .2s;
}
.btn-primary:hover { background: var(--navy-deep); transform: translateY(-1px); box-shadow: 0 6px 20px rgba(0,30,100,0.2); }

.btn-secondary {
  display: inline-flex; align-items: center; gap: 8px;
  background: transparent; color: var(--navy);
  padding: 13px 28px; border-radius: 12px;
  font-weight: 600; font-size: 0.95rem;
  text-decoration: none; border: 2px solid var(--border);
  cursor: pointer; transition: all .2s;
}
.btn-secondary:hover { border-color: var(--navy); background: rgba(0,30,100,0.04); }

.btn-cyan {
  display: inline-flex; align-items: center; gap: 8px;
  background: var(--cyan); color: var(--navy);
  padding: 13px 28px; border-radius: 12px;
  font-weight: 700; font-size: 0.95rem;
  text-decoration: none; border: 2px solid var(--cyan);
  cursor: pointer; transition: all .2s;
}
.btn-cyan:hover { background: #00c8f0; transform: translateY(-1px); box-shadow: 0 6px 20px rgba(0,180,220,0.3); }

/* ── Cards ── */
.card {
  background: #fff; border-radius: var(--radius);
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
  padding: 32px 28px;
}

/* ── Forms ── */
.form-group { margin-bottom: 20px; }
.form-label {
  display: block; font-size: 0.8rem; font-weight: 600;
  color: var(--text-muted); margin-bottom: 8px;
  letter-spacing: 0.05em; text-transform: uppercase;
}
.form-input {
  width: 100%; background: var(--bg-light);
  border: 1.5px solid var(--border); border-radius: var(--radius-sm);
  color: var(--text); font-family: 'DM Sans', sans-serif;
  font-size: 0.97rem; padding: 12px 16px; outline: none;
  transition: border-color .2s, box-shadow .2s;
}
.form-input:focus { border-color: var(--cyan); box-shadow: 0 0 0 3px rgba(0,180,220,0.12); }
.form-input::placeholder { color: var(--text-muted); }
textarea.form-input { resize: vertical; min-height: 120px; }

/* ── Alerts ── */
.alert {
  padding: 13px 16px; border-radius: var(--radius-sm);
  font-size: 0.85rem; margin-bottom: 16px;
  display: none; line-height: 1.5;
}
.alert.show { display: block; }
.alert-err  { background: rgba(200,40,40,0.07);  border: 1px solid rgba(200,40,40,0.2);  color: #c02020; }
.alert-ok   { background: rgba(0,160,80,0.07);   border: 1px solid rgba(0,160,80,0.2);   color: #007830; }
.alert-info { background: rgba(0,30,100,0.05);   border: 1px solid rgba(0,30,100,0.12);  color: var(--text-mid); }

/* ── Spinner ── */
.spin {
  display: inline-block; width: 16px; height: 16px;
  border: 2px solid rgba(255,255,255,0.3); border-top-color: #fff;
  border-radius: 50%; animation: spinR .7s linear infinite;
  vertical-align: middle; margin-right: 8px;
}
@keyframes spinR { to { transform: rotate(360deg); } }
.spin-dark {
  border-color: rgba(0,30,100,0.15); border-top-color: var(--navy);
}

/* ── Page hero (inner pages) ── */
.page-hero {
  background: linear-gradient(135deg, var(--navy) 0%, #003090 60%, #004ab0 100%);
  padding: 140px 0 80px;
  position: relative; overflow: hidden;
}
.page-hero::before {
  content: '';
  position: absolute; inset: 0;
  background: radial-gradient(ellipse 60% 70% at 80% 50%, rgba(0,180,220,0.15) 0%, transparent 65%);
  pointer-events: none;
}
.page-hero-tag {
  display: inline-flex; align-items: center; gap: 7px;
  background: rgba(255,255,255,0.1); border: 1px solid rgba(255,255,255,0.2);
  border-radius: 50px; padding: 5px 14px;
  font-size: 0.75rem; font-weight: 600; color: rgba(255,255,255,0.8);
  letter-spacing: 0.08em; text-transform: uppercase; margin-bottom: 20px;
}
.page-hero h1 {
  font-family: 'Fraunces', serif; font-weight: 900;
  font-size: clamp(2.2rem, 5vw, 3.6rem);
  color: #fff; line-height: 1.1;
  margin-bottom: 16px; letter-spacing: -0.02em;
}
.page-hero h1 em { font-style: italic; color: var(--cyan); }
.page-hero p {
  font-size: 1.05rem; color: rgba(255,255,255,0.7);
  max-width: 520px; line-height: 1.65;
}

/* ── Footer ── */
.footer {
  background: var(--navy-deep);
  padding: 64px 0 32px; color: rgba(255,255,255,0.75);
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: 48px; margin-bottom: 48px;
}
@media(max-width:860px) { .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; } }
@media(max-width:520px) { .footer-grid { grid-template-columns: 1fr; } }

.footer-brand p { font-size: 0.88rem; line-height: 1.65; max-width: 280px; margin-top: 4px; }
.social-row { display: flex; gap: 10px; margin-top: 18px; }
.social-link {
  width: 36px; height: 36px; border-radius: 8px;
  background: rgba(255,255,255,0.08); border: 1px solid rgba(255,255,255,0.12);
  display: flex; align-items: center; justify-content: center;
  color: rgba(255,255,255,0.7); text-decoration: none; transition: all .2s;
}
.social-link:hover { background: rgba(255,255,255,0.15); color: #fff; }

.footer-col-title {
  font-size: 0.75rem; font-weight: 700; letter-spacing: 0.1em;
  text-transform: uppercase; color: rgba(255,255,255,0.4);
  margin-bottom: 16px;
}
.footer-link {
  display: block; color: rgba(255,255,255,0.65);
  text-decoration: none; font-size: 0.88rem;
  margin-bottom: 10px; transition: color .2s;
}
.footer-link:hover { color: var(--cyan); }
.footer-addr { font-size: 0.88rem; margin-bottom: 10px; }

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.08);
  padding-top: 24px;
  display: flex; justify-content: space-between;
  flex-wrap: wrap; gap: 12px;
  font-size: 0.8rem; color: rgba(255,255,255,0.35);
}

/* ── Utilities ── */
.text-center { text-align: center; }
.mt-8  { margin-top: 8px; }
.mt-16 { margin-top: 16px; }
.mt-24 { margin-top: 24px; }
.mt-40 { margin-top: 40px; }