/*
 * ISC2 Netherlands Chapter – Member Registry
 * Main stylesheet
 *
 * Version : 1.2.0
 * File    : assets/css/style.css
 *
 * Colours taken directly from ISC2 Brand Guidelines v9 June 2024 (page 19):
 *   ISC2 Green    #3f8e44
 *   ISC2 Gray     #EBEBEB
 *   ISC2 Rich Black #000000
 *   Lime          #9AC23C
 *   Cornflower    #5466AE
 *   Marigold      #ECC623
 *
 * Typography: Open Sans (Google Fonts) – official ISC2 brand font (page 21)
 *
 * Header/footer: per website example (page 44):
 *   - White header bar with ISC2 logo (dark/colour version)
 *   - Thin ISC2 green accent bar below header
 *   - Dark footer
 */

/* ============================================================
   CSS Custom Properties – ISC2 Brand v9 2024
   ============================================================ */
:root {
  /* Primary brand colours – exact from brand guide page 19 */
  --clr-green:         #3f8e44;   /* ISC2 Green */
  --clr-green-dark:    #2d6b31;   /* darker shade for hover/border */
  --clr-green-light:   #eaf4eb;   /* tint for backgrounds */
  --clr-lime:          #9AC23C;   /* Lime – secondary accent */
  --clr-rich-black:    #000000;   /* ISC2 Rich Black */
  --clr-gray:          #EBEBEB;   /* ISC2 Gray */

  /* UI colours */
  --clr-bg:            #f5f5f5;
  --clr-surface:       #ffffff;
  --clr-border:        #d6d6d6;
  --clr-border-light:  #efefef;
  --clr-text:          #1a1a1a;
  --clr-text-muted:    #555555;
  --clr-text-light:    #888888;
  --clr-error:         #c0392b;
  --clr-success:       #3f8e44;

  /* Header/footer */
  --clr-header-bg:     #ffffff;      /* white header per isc2.org */
  --clr-footer-bg:     #1a1a1a;      /* dark footer */
  --clr-accent-bar:    #3f8e44;      /* ISC2 green accent line */

  /* Typography – Open Sans is the official ISC2 brand font */
  --font-body:         'Open Sans', Arial, sans-serif;
  --text-xs:           0.75rem;
  --text-sm:           0.875rem;
  --text-base:         1rem;
  --text-lg:           1.125rem;
  --text-xl:           1.25rem;
  --text-2xl:          1.5rem;
  --text-3xl:          2rem;

  /* Spacing */
  --space-1:  0.25rem;  --space-2:  0.5rem;   --space-3:  0.75rem;
  --space-4:  1rem;     --space-5:  1.25rem;  --space-6:  1.5rem;
  --space-8:  2rem;     --space-10: 2.5rem;   --space-12: 3rem;

  /* Borders & shadows */
  --radius-sm:  3px;  --radius:  4px;  --radius-lg:  6px;
  --shadow-sm:  0 1px 3px rgba(0,0,0,.08);
  --shadow:     0 2px 8px rgba(0,0,0,.10);
  --shadow-lg:  0 8px 24px rgba(0,0,0,.12);
  --transition: 160ms ease;
}

/* ============================================================
   Reset & Base
   ============================================================ */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 16px; scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  font-family: var(--font-body);
  color: var(--clr-text);
  background: var(--clr-bg);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  line-height: 1.6;
}
img { max-width: 100%; height: auto; display: block; }
a   { color: var(--clr-green); text-decoration: none; }
a:hover { text-decoration: underline; color: var(--clr-green-dark); }

/* ============================================================
   Accessibility
   ============================================================ */
.skip-link {
  position: absolute; top: -100%; left: var(--space-4);
  background: var(--clr-green); color: #fff;
  padding: var(--space-2) var(--space-4); border-radius: var(--radius-sm);
  font-size: var(--text-sm); font-weight: 700; z-index: 9999;
  transition: top var(--transition);
}
.skip-link:focus { top: var(--space-2); }
:focus-visible { outline: 2px solid var(--clr-green); outline-offset: 3px; }

/* ============================================================
   Layout
   ============================================================ */
.container       { width: 100%; max-width: 700px; margin: 0 auto; padding: 0 var(--space-5); }
.container--wide { max-width: 1100px; }
.main            { flex: 1; padding: var(--space-10) 0 var(--space-12); }

/* ============================================================
   Header
   Per isc2.org (page 44 of brand guide): white bar, dark logo, green accent line below.
   ============================================================ */
.site-header {
  background: var(--clr-header-bg);
  padding: 0;
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: 0 1px 4px rgba(0,0,0,.12);
}

.header-inner {
  display: flex;
  align-items: stretch;
  justify-content: space-between;
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 var(--space-5);
  min-height: 64px;
}

.logo-lockup {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  text-decoration: none;
  padding: var(--space-3) 0;
}

/* Logo: use colour (dark) version on white header per brand guide page 17 */
.logo-svg { height: 36px; width: auto; display: block; }

.logo-divider {
  width: 1px;
  height: 28px;
  background: var(--clr-border);
}

.logo-chapter-text {
  font-size: var(--text-sm);
  font-weight: 700;
  color: var(--clr-text);
  letter-spacing: .2px;
  line-height: 1.3;
}

.logo-chapter-text span {
  display: block;
  font-size: var(--text-xs);
  font-weight: 400;
  color: var(--clr-text-muted);
  letter-spacing: .4px;
  text-transform: uppercase;
}

.header-nav { display: flex; align-items: center; gap: var(--space-2); }

.lang-toggle {
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--clr-text-muted);
  text-decoration: none;
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-sm);
  border: 1px solid var(--clr-border);
  transition: all var(--transition);
}
.lang-toggle:hover {
  color: var(--clr-green);
  border-color: var(--clr-green);
  text-decoration: none;
  background: var(--clr-green-light);
}

/* Green accent bar below header – brand signature element */
.header-accent-bar { height: 4px; background: var(--clr-green); width: 100%; }

/* ============================================================
   Footer – dark, per brand guide sample executions
   ============================================================ */
.site-footer {
  background: var(--clr-footer-bg);
  padding: var(--space-6) 0;
  margin-top: auto;
  border-top: 4px solid var(--clr-green);
}

.footer-inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 var(--space-5);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-3);
}

/* White knockout logo for dark footer – per brand guide page 17 */
.footer-logo { height: 28px; width: auto; filter: brightness(0) invert(1); opacity: .85; }

.footer-links { display: flex; align-items: center; gap: var(--space-4); flex-wrap: wrap; }
.footer-links a, .footer-links span { font-size: var(--text-xs); color: rgba(255,255,255,.55); text-decoration: none; }
.footer-links a:hover { color: rgba(255,255,255,.9); text-decoration: underline; }
.footer-links .sep { color: rgba(255,255,255,.2); }

/* ============================================================
   Card / Panel
   ============================================================ */
.card {
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  border-top: 3px solid var(--clr-green);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  padding: var(--space-8);
  animation: slideUp 200ms ease;
}

.card-header {
  margin-bottom: var(--space-6);
  padding-bottom: var(--space-5);
  border-bottom: 1px solid var(--clr-border-light);
}

.card-header h1 {
  font-size: var(--text-3xl);
  font-weight: 700;
  color: var(--clr-rich-black);
  line-height: 1.2;
  margin-bottom: var(--space-2);
}

.card-header p { color: var(--clr-text-muted); font-size: var(--text-base); }

/* Step indicator */
.step-indicator {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  margin-bottom: var(--space-6);
  font-size: var(--text-sm);
  color: var(--clr-text-muted);
}

.step-dot {
  width: 28px; height: 28px; border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: var(--text-xs); font-weight: 700;
  border: 2px solid var(--clr-border);
  color: var(--clr-text-muted);
  background: var(--clr-surface); flex-shrink: 0;
}
.step-dot.active { background: var(--clr-green); border-color: var(--clr-green); color: #fff; }
.step-dot.done   { background: var(--clr-lime);  border-color: var(--clr-lime);  color: #fff; }
.step-line       { flex: 1; height: 2px; background: var(--clr-border); border-radius: 1px; }

/* ============================================================
   Form elements
   ============================================================ */
.form-group { margin-bottom: var(--space-5); }

label {
  display: block; font-size: var(--text-sm); font-weight: 700;
  color: var(--clr-text); margin-bottom: var(--space-2);
}
label .required-star { color: var(--clr-error); margin-left: 2px; }

.form-hint { font-size: var(--text-xs); color: var(--clr-text-muted); margin-top: var(--space-1); line-height: 1.5; }

input[type="text"], input[type="email"], input[type="number"], select, textarea {
  width: 100%; padding: 10px var(--space-4);
  border: 1px solid var(--clr-border); border-radius: var(--radius);
  font-family: var(--font-body); font-size: var(--text-base);
  color: var(--clr-text); background: var(--clr-surface);
  transition: border-color var(--transition), box-shadow var(--transition);
  appearance: none;
}
input:focus, select:focus, textarea:focus {
  outline: none; border-color: var(--clr-green);
  box-shadow: 0 0 0 3px rgba(63,142,68,.12);
}
input.is-invalid, select.is-invalid {
  border-color: var(--clr-error); box-shadow: 0 0 0 3px rgba(192,57,43,.08);
}

.field-error {
  font-size: var(--text-xs); color: var(--clr-error); margin-top: var(--space-1);
  display: flex; align-items: center; gap: var(--space-1); font-weight: 600;
}
.field-error::before { content: '⚠'; }

.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-4); }

/* Cert checklist */
.cert-list {
  border: 1px solid var(--clr-border); border-radius: var(--radius);
  max-height: 240px; overflow-y: auto; background: var(--clr-surface); scrollbar-width: thin;
}
.cert-list:focus-within { border-color: var(--clr-green); box-shadow: 0 0 0 3px rgba(63,142,68,.12); }

.cert-item {
  display: flex; align-items: center; gap: var(--space-3);
  padding: 10px var(--space-4); cursor: pointer;
  transition: background var(--transition);
  border-bottom: 1px solid var(--clr-border-light);
}
.cert-item:last-child { border-bottom: none; }
.cert-item:hover { background: var(--clr-green-light); }
.cert-item input[type="checkbox"] {
  width: 16px; height: 16px; accent-color: var(--clr-green);
  flex-shrink: 0; cursor: pointer; margin: 0; padding: 0; border: none;
}
.cert-item label {
  font-size: var(--text-sm); font-weight: 400; color: var(--clr-text); cursor: pointer; margin: 0;
}

/* GDPR consent */
.checkbox-group {
  display: flex; align-items: flex-start; gap: var(--space-3);
  padding: var(--space-4); border: 1px solid var(--clr-border);
  border-radius: var(--radius); background: #fafafa;
}
.checkbox-group input[type="checkbox"] {
  width: 18px; height: 18px; accent-color: var(--clr-green);
  flex-shrink: 0; margin-top: 2px; cursor: pointer; padding: 0; border: none;
}
.checkbox-group label { font-size: var(--text-sm); font-weight: 400; color: var(--clr-text); margin: 0; line-height: 1.5; }
.checkbox-group .link { color: var(--clr-green); text-decoration: underline; }

/* Language radio */
.lang-row { display: flex; gap: var(--space-4); }
.lang-option { flex: 1; position: relative; }
.lang-option input[type="radio"] { position: absolute; opacity: 0; width: 0; height: 0; }
.lang-option label {
  display: flex; align-items: center; justify-content: center;
  gap: var(--space-2); padding: 10px var(--space-4);
  border: 1px solid var(--clr-border); border-radius: var(--radius);
  font-weight: 700; font-size: var(--text-sm); cursor: pointer;
  transition: all var(--transition); background: var(--clr-surface); color: var(--clr-text-muted);
}
.lang-option input:checked + label {
  border-color: var(--clr-green); background: var(--clr-green-light); color: var(--clr-green);
}
.lang-option label:hover { border-color: var(--clr-green); color: var(--clr-text); }

/* ============================================================
   Buttons – ISC2 Green CTA (brand guide: green primary button)
   ============================================================ */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  gap: var(--space-2); padding: 11px var(--space-6);
  border: 2px solid transparent; border-radius: var(--radius-sm);
  font-family: var(--font-body); font-size: var(--text-base);
  font-weight: 700; cursor: pointer; text-decoration: none;
  transition: all var(--transition); line-height: 1.4;
}

.btn-primary { background: var(--clr-green); color: #fff; border-color: var(--clr-green); }
.btn-primary:hover {
  background: var(--clr-green-dark); border-color: var(--clr-green-dark); color: #fff;
  text-decoration: none; box-shadow: 0 3px 8px rgba(63,142,68,.35);
}

.btn-secondary { background: transparent; color: var(--clr-green); border-color: var(--clr-green); }
.btn-secondary:hover { background: var(--clr-green-light); text-decoration: none; }

.btn-full { width: 100%; }
.btn:disabled { opacity: .55; cursor: not-allowed; }

.form-actions { margin-top: var(--space-8); display: flex; flex-direction: column; gap: var(--space-3); }

/* ============================================================
   Alerts
   ============================================================ */
.alert {
  display: flex; gap: var(--space-3); padding: var(--space-4) var(--space-5);
  border-radius: var(--radius); font-size: var(--text-sm); line-height: 1.5;
  margin-bottom: var(--space-5); border-left: 4px solid transparent;
}
.alert-icon { font-size: 1.1em; flex-shrink: 0; margin-top: 1px; }
.alert-error   { background: #fdf3f2; border-left-color: var(--clr-error); color: #7b1e16; }
.alert-success { background: var(--clr-green-light); border-left-color: var(--clr-green); color: #1e4d21; }
.alert-info    { background: #f0f4ff; border-left-color: #5466AE; color: #2a3460; }
.alert-warning { background: #fffbeb; border-left-color: #ECC623; color: #7a5c00; }

/* ============================================================
   hCaptcha
   ============================================================ */
.captcha-wrapper {
  display: flex; flex-direction: column; align-items: center;
  gap: var(--space-6); padding: var(--space-8) 0;
}
.captcha-wrapper p { font-size: var(--text-base); color: var(--clr-text-muted); text-align: center; max-width: 380px; }

/* ============================================================
   Result screens
   ============================================================ */
.result-screen { text-align: center; padding: var(--space-8) 0; }
.result-icon   { font-size: 3rem; margin-bottom: var(--space-4); line-height: 1; }
.result-screen h1 { font-size: var(--text-2xl); font-weight: 700; color: var(--clr-rich-black); margin-bottom: var(--space-3); }
.result-screen p  { color: var(--clr-text-muted); font-size: var(--text-base); max-width: 420px; margin: 0 auto var(--space-6); line-height: 1.6; }
.result-screen .btn { margin: 0 auto; }

/* ============================================================
   Modal
   ============================================================ */
.modal-overlay {
  position: fixed; inset: 0; background: rgba(0,0,0,.5);
  z-index: 1000; display: flex; align-items: center; justify-content: center;
  padding: var(--space-4); animation: fadeIn 150ms ease;
}
.modal-overlay[hidden] { display: none; }
.modal-box {
  background: var(--clr-surface); border-radius: var(--radius-lg);
  border-top: 3px solid var(--clr-green); box-shadow: var(--shadow-lg);
  max-width: 600px; width: 100%; max-height: 85vh;
  display: flex; flex-direction: column; overflow: hidden;
}
.modal-header {
  display: flex; align-items: center; justify-content: space-between;
  padding: var(--space-5) var(--space-6); border-bottom: 1px solid var(--clr-border); flex-shrink: 0;
}
.modal-header h2 { font-size: var(--text-xl); font-weight: 700; color: var(--clr-rich-black); }
.modal-close {
  background: none; border: none; font-size: 1.5rem; color: var(--clr-text-muted);
  cursor: pointer; padding: var(--space-1); line-height: 1; transition: color var(--transition);
}
.modal-close:hover { color: var(--clr-text); }
.modal-body { padding: var(--space-6); overflow-y: auto; font-size: var(--text-sm); color: var(--clr-text); line-height: 1.7; }
.modal-body h3 { font-size: var(--text-base); font-weight: 700; color: var(--clr-green); margin: var(--space-4) 0 var(--space-2); }
.modal-body h3:first-child { margin-top: 0; }
.modal-body p  { margin-bottom: var(--space-3); }
.modal-body ul { padding-left: var(--space-5); margin-bottom: var(--space-3); }
.modal-body li { margin-bottom: var(--space-1); }
.modal-body a  { color: var(--clr-green); }

/* ============================================================
   Animations
   ============================================================ */
@keyframes fadeIn  { from { opacity: 0; } to { opacity: 1; } }
@keyframes slideUp { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: translateY(0); } }

/* ============================================================
   Responsive
   ============================================================ */
@media (max-width: 600px) {
  .card { padding: var(--space-5) var(--space-4); border-radius: var(--radius); }
  .card-header h1 { font-size: var(--text-2xl); }
  .form-row { grid-template-columns: 1fr; }
  .lang-row { flex-direction: column; }
  .main { padding: var(--space-6) 0 var(--space-8); }
  .footer-inner { flex-direction: column; align-items: flex-start; }
  .footer-links { flex-direction: column; gap: var(--space-2); }
}