/* ============================================
   EmergDoc — Stylesheet
   ============================================ */

/* ---------- 1. CSS Reset ---------- */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  line-height: 1.6;
  font-family: var(--font-body);
  font-weight: 400;
  color: var(--color-dark-gray);
  background: var(--color-white);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

img, svg {
  display: block;
  max-width: 100%;
  height: auto;
}

a {
  color: inherit;
  text-decoration: none;
}

ul, ol {
  list-style: none;
}

button, input, textarea {
  font: inherit;
  color: inherit;
  border: none;
  background: none;
}

button {
  cursor: pointer;
}

/* ---------- 2. Custom Properties ---------- */
:root {
  /* Primary palette (from Logo.svg) */
  --color-primary:        #14416d;
  --color-primary-light:  #1a5a8a;
  --color-primary-dark:   #0d2d4a;
  --color-accent:         #1aa5cc;
  --color-accent-light:   #22c4ef;
  --color-accent-dark:    #148da8;

  /* Neutrals */
  --color-white:          #ffffff;
  --color-off-white:      #f8f9fb;
  --color-light-gray:     #e8ecf1;
  --color-medium-gray:    #6b7a8d;
  --color-dark-gray:      #2d3748;
  --color-black:          #1a1a2e;

  /* Semantic */
  --color-success:        #10b981;
  --color-error:          #ef4444;

  /* Gradients */
  --gradient-hero:        linear-gradient(135deg, #14416d 0%, #1a5a8a 50%, #1aa5cc 100%);
  --gradient-cta:         linear-gradient(135deg, #1aa5cc 0%, #148da8 100%);

  /* Shadows */
  --shadow-sm:            0 1px 3px rgba(20, 65, 109, 0.08);
  --shadow-md:            0 4px 12px rgba(20, 65, 109, 0.12);
  --shadow-lg:            0 8px 30px rgba(20, 65, 109, 0.16);

  /* Typography */
  --font-heading:         'Inter', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-body:            'Inter', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;

  /* Spacing */
  --container-max:        1200px;
  --section-padding:      4rem 0;
  --section-padding-sm:   2.5rem 0;
}

/* ---------- 3. Base / Typography ---------- */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.2;
  color: var(--color-black);
}

h1 { font-size: 2rem; margin-bottom: 1rem; }
h2 { font-size: 1.5rem; margin-bottom: 0.75rem; }
h3 { font-size: 1.2rem; margin-bottom: 0.5rem; }
h4 { font-size: 1.05rem; margin-bottom: 0.5rem; }

p {
  margin-bottom: 1rem;
}

p:last-child {
  margin-bottom: 0;
}

a:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
  border-radius: 2px;
}

/* ---------- 4. Layout Utilities ---------- */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 1rem;
}

.content-narrow {
  max-width: 800px;
  margin: 0 auto;
}

.text-center {
  text-align: center;
}

main {
  flex: 1;
}

/* ---------- 5. Skip Link ---------- */
.skip-link {
  position: absolute;
  top: -100%;
  left: 1rem;
  z-index: 9999;
  padding: 0.75rem 1.5rem;
  background: var(--color-accent);
  color: var(--color-white);
  font-weight: 600;
  border-radius: 0 0 6px 6px;
  transition: top 0.2s;
}

.skip-link:focus {
  top: 0;
}

/* ---------- 6. Header / Navigation ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: var(--color-white);
  border-bottom: 1px solid var(--color-light-gray);
  transition: padding 0.3s ease, box-shadow 0.3s ease;
  padding: 0.75rem 0;
}

.site-header.scrolled {
  padding: 0.4rem 0;
  box-shadow: var(--shadow-md);
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo img {
  height: 45px;
  width: auto;
}

/* Navigation */
.main-nav .nav-list {
  display: flex;
  gap: 0.25rem;
}

.nav-link {
  display: block;
  padding: 0.5rem 1rem;
  color: var(--color-dark-gray);
  font-weight: 500;
  font-size: 0.95rem;
  border-radius: 6px;
  position: relative;
  transition: color 0.2s, background 0.2s;
}

.nav-link:hover {
  color: var(--color-accent);
  background: var(--color-off-white);
}

.nav-link.active {
  color: var(--color-primary);
  background: transparent;
}

.nav-link.active::after {
  content: '';
  position: absolute;
  bottom: 4px;
  left: 1rem;
  right: 1rem;
  height: 2px;
  background: var(--color-accent);
  border-radius: 1px;
}

/* Hamburger */
.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 36px;
  height: 36px;
  padding: 6px;
  border-radius: 6px;
  transition: background 0.2s;
}

.nav-toggle:hover {
  background: var(--color-off-white);
}

.hamburger,
.hamburger::before,
.hamburger::after {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--color-primary);
  border-radius: 1px;
  transition: transform 0.3s ease, opacity 0.3s ease;
}

.hamburger {
  position: relative;
}

.hamburger::before,
.hamburger::after {
  content: '';
  position: absolute;
  left: 0;
}

.hamburger::before { top: -7px; }
.hamburger::after  { top: 7px; }

/* Hamburger open state */
.nav-open .hamburger {
  background: transparent;
}

.nav-open .hamburger::before {
  top: 0;
  transform: rotate(45deg);
}

.nav-open .hamburger::after {
  top: 0;
  transform: rotate(-45deg);
}

/* Mobile nav */
@media (max-width: 1023px) {
  .nav-toggle {
    display: flex;
  }

  .main-nav {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--color-white);
    border-top: 1px solid var(--color-light-gray);
    box-shadow: var(--shadow-lg);
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.35s ease;
  }

  .nav-open .main-nav {
    max-height: 300px;
  }

  .main-nav .nav-list {
    flex-direction: column;
    padding: 0.5rem 1rem 1rem;
  }

  .nav-link {
    padding: 0.75rem 1rem;
    font-size: 1rem;
  }
}

/* ---------- 7. Hero Sections ---------- */
.hero {
  background: var(--gradient-hero);
  color: var(--color-white);
  padding: 4rem 0 5rem;
  text-align: center;
}

.hero h1 {
  color: var(--color-white);
  font-size: 2.25rem;
  max-width: 700px;
  margin: 0 auto 1rem;
}

.hero-subtitle {
  font-size: 1.1rem;
  color: rgba(255, 255, 255, 0.9);
  max-width: 600px;
  margin: 0 auto 2rem;
  line-height: 1.7;
}

.hero-logo {
  height: 80px;
  width: auto;
  margin: 0 auto 2rem;
}

.hero-ctas {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
}

/* Page hero (shorter, for inner pages) */
.page-hero {
  background: var(--gradient-hero);
  color: var(--color-white);
  padding: 3rem 0;
  text-align: center;
}

.page-hero h1 {
  color: var(--color-white);
  font-size: 2rem;
  margin-bottom: 0.5rem;
}

.page-hero-subtitle {
  color: rgba(255, 255, 255, 0.9);
  font-size: 1.05rem;
  max-width: 600px;
  margin: 0 auto;
}

/* ---------- 8. Content Sections ---------- */
section {
  padding: var(--section-padding-sm);
}

.features {
  background: var(--color-off-white);
}

.features h2,
.mission-values h2,
.about-preview h2 {
  text-align: center;
  margin-bottom: 2rem;
}

.features-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}

/* ---------- 9. Cards ---------- */
.feature-card,
.value-card {
  background: var(--color-white);
  border-radius: 10px;
  padding: 2rem 1.5rem;
  box-shadow: var(--shadow-sm);
  transition: transform 0.2s, box-shadow 0.2s;
}

.feature-card:hover,
.value-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
}

.feature-card .card-icon,
.value-card .card-icon {
  width: 48px;
  height: 48px;
  margin-bottom: 1rem;
  color: var(--color-accent);
}

.feature-card h3,
.value-card h3 {
  color: var(--color-primary);
  margin-bottom: 0.5rem;
}

/* ---------- 10. About Preview ---------- */
.about-preview {
  background: var(--color-white);
}

.about-preview-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  align-items: center;
}

.about-preview-photo {
  border-radius: 12px;
  width: 100%;
  max-height: 500px;
  object-fit: contain;
  box-shadow: var(--shadow-md);
}

/* ---------- 11. CTA Banner ---------- */
.cta-banner {
  background: var(--gradient-hero);
  color: var(--color-white);
  padding: 3rem 0;
  text-align: center;
}

.cta-banner h2 {
  color: var(--color-white);
  margin-bottom: 1.5rem;
}

/* ---------- 12. Buttons ---------- */
.btn {
  display: inline-block;
  padding: 0.75rem 1.75rem;
  font-weight: 600;
  font-size: 0.95rem;
  border-radius: 6px;
  transition: transform 0.2s, box-shadow 0.2s, background 0.2s, color 0.2s;
  text-align: center;
  border: 2px solid transparent;
}

.btn:hover {
  transform: translateY(-1px);
}

.btn:active {
  transform: translateY(0);
}

.btn-primary {
  background: var(--color-primary);
  color: var(--color-white);
}

.btn-primary:hover {
  background: var(--color-primary-light);
  box-shadow: var(--shadow-md);
}

.btn-accent {
  background: var(--color-accent);
  color: var(--color-white);
}

.btn-accent:hover {
  background: var(--color-accent-light);
  box-shadow: var(--shadow-md);
}

.btn-outline {
  background: transparent;
  color: var(--color-white);
  border-color: rgba(255, 255, 255, 0.6);
}

.btn-outline:hover {
  background: var(--color-white);
  color: var(--color-primary);
  border-color: var(--color-white);
}

.btn-lg {
  padding: 0.9rem 2.25rem;
  font-size: 1.05rem;
}

/* ---------- 13. Bio Section (About Page) ---------- */
.bio-section {
  padding: var(--section-padding-sm);
}

.bio-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
}

.bio-sidebar {
  text-align: center;
}

.profile-photo {
  width: 180px;
  height: 180px;
  border-radius: 50%;
  object-fit: cover;
  object-position: center top;
  margin: 0 auto 1rem;
  box-shadow: var(--shadow-md);
  border: 4px solid var(--color-light-gray);
}

.bio-title {
  color: var(--color-medium-gray);
  font-size: 1rem;
  margin-bottom: 0;
}

.bio-main h3 {
  color: var(--color-primary);
  margin-bottom: 1rem;
  padding-bottom: 0.5rem;
  border-bottom: 2px solid var(--color-light-gray);
}

/* ---------- 14. CV Section (About Page) ---------- */
.cv-section {
  background: var(--color-off-white);
  padding: var(--section-padding-sm);
}

.cv-section > .container > h2 {
  text-align: center;
  margin-bottom: 2rem;
}

.cv-block {
  margin-bottom: 2.5rem;
}

.cv-block:last-child {
  margin-bottom: 0;
}

.cv-block h3 {
  color: var(--color-primary);
  font-size: 1.15rem;
  margin-bottom: 1rem;
  padding-bottom: 0.5rem;
  border-bottom: 2px solid var(--color-accent);
  display: inline-block;
}

.cv-item {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.25rem;
  padding: 1rem 0;
  border-left: 3px solid var(--color-light-gray);
  padding-left: 1.25rem;
  margin-left: 0.5rem;
}

.cv-item + .cv-item {
  border-top: none;
}

.cv-date {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-accent-dark);
  white-space: nowrap;
}

.cv-details h4 {
  color: var(--color-black);
  font-weight: 600;
}

.cv-details p {
  color: var(--color-medium-gray);
  font-size: 0.95rem;
}

.cv-details ul {
  margin-top: 0.5rem;
  padding-left: 1.25rem;
  list-style: disc;
}

.cv-details ul li {
  color: var(--color-dark-gray);
  font-size: 0.9rem;
  margin-bottom: 0.25rem;
}

.publications-list {
  list-style: decimal;
  padding-left: 1.5rem;
}

.publications-list li {
  padding: 0.5rem 0;
  font-size: 0.95rem;
  color: var(--color-dark-gray);
  border-bottom: 1px solid var(--color-light-gray);
}

.publications-list li:last-child {
  border-bottom: none;
}

/* ---------- 15. Mission Page ---------- */
.mission-statement {
  background: var(--color-white);
}

.mission-statement h2 {
  color: var(--color-primary);
  text-align: center;
  margin-bottom: 1.5rem;
}

.mission-statement p {
  font-size: 1.05rem;
  line-height: 1.8;
  color: var(--color-dark-gray);
}

.mission-values {
  background: var(--color-off-white);
}

.values-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}

/* ---------- 16. Contact Page ---------- */
.contact-section {
  padding: var(--section-padding-sm);
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 3rem;
}

.contact-form-wrapper h2,
.contact-info h2 {
  color: var(--color-primary);
  margin-bottom: 1.5rem;
}

/* Form */
.form-group {
  margin-bottom: 1.25rem;
}

.form-group label {
  display: block;
  font-weight: 500;
  margin-bottom: 0.4rem;
  color: var(--color-dark-gray);
  font-size: 0.95rem;
}

.form-group .required {
  color: var(--color-error);
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 0.75rem 1rem;
  border: 2px solid var(--color-light-gray);
  border-radius: 6px;
  font-size: 1rem;
  transition: border-color 0.2s, box-shadow 0.2s;
  background: var(--color-white);
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px rgba(26, 165, 204, 0.15);
}

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

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

.form-error {
  display: block;
  font-size: 0.85rem;
  color: var(--color-error);
  margin-top: 0.3rem;
  min-height: 1.2em;
}

.form-status {
  margin-top: 1rem;
  padding: 0.75rem 1rem;
  border-radius: 6px;
  font-weight: 500;
  display: none;
}

.form-status.success {
  display: block;
  background: rgba(16, 185, 129, 0.1);
  color: var(--color-success);
  border: 1px solid var(--color-success);
}

.form-status.error-msg {
  display: block;
  background: rgba(239, 68, 68, 0.1);
  color: var(--color-error);
  border: 1px solid var(--color-error);
}

/* Contact info sidebar */
.contact-info-item {
  display: flex;
  gap: 1rem;
  margin-bottom: 1.5rem;
  align-items: flex-start;
}

.contact-info-item svg {
  flex-shrink: 0;
  width: 24px;
  height: 24px;
  color: var(--color-accent);
  margin-top: 2px;
}

.contact-info-item h3 {
  font-size: 0.95rem;
  color: var(--color-primary);
  margin-bottom: 0.25rem;
}

.contact-info-item p,
.contact-info-item a {
  font-size: 0.95rem;
  color: var(--color-medium-gray);
}

.contact-info-item a:hover {
  color: var(--color-accent);
}

/* ---------- 17. Footer ---------- */
.site-footer {
  background: var(--color-off-white);
  color: var(--color-dark-gray);
  border-top: 1px solid var(--color-light-gray);
  padding-top: 3rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  padding-bottom: 2rem;
}

.footer-logo {
  height: 38px;
  width: auto;
  margin-bottom: 0.75rem;
}

.footer-brand p {
  font-size: 0.9rem;
  color: var(--color-medium-gray);
}

.site-footer h3 {
  color: var(--color-primary);
  font-size: 0.95rem;
  margin-bottom: 0.75rem;
  font-weight: 600;
}

.footer-nav ul li {
  margin-bottom: 0.4rem;
}

.footer-nav a,
.footer-contact a {
  color: var(--color-medium-gray);
  font-size: 0.9rem;
  transition: color 0.2s;
}

.footer-nav a:hover,
.footer-contact a:hover {
  color: var(--color-accent);
}

.footer-contact p {
  font-size: 0.9rem;
  color: var(--color-medium-gray);
}

.footer-bottom {
  border-top: 1px solid var(--color-light-gray);
  padding: 1.25rem 0;
  text-align: center;
}

.footer-bottom p {
  font-size: 0.85rem;
  color: var(--color-medium-gray);
}

/* ---------- 18. Animations ---------- */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.fade-in-up {
  animation: fadeInUp 0.5s ease forwards;
}

/* Button loading state */
.btn.loading {
  pointer-events: none;
  opacity: 0.7;
}

/* ---------- 19. Media Queries ---------- */

/* Tablet */
@media (min-width: 768px) {
  .container {
    padding: 0 1.5rem;
  }

  section {
    padding: var(--section-padding);
  }

  h1 { font-size: 2.5rem; }
  h2 { font-size: 1.75rem; }

  .hero {
    padding: 5rem 0 6rem;
  }

  .hero h1 {
    font-size: 2.75rem;
  }

  .hero-logo {
    height: 100px;
  }

  .page-hero {
    padding: 3.5rem 0;
  }

  .page-hero h1 {
    font-size: 2.5rem;
  }

  .features-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .values-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .about-preview-grid {
    grid-template-columns: 1fr 1fr;
  }

  .bio-grid {
    grid-template-columns: 240px 1fr;
    gap: 3rem;
  }

  .bio-sidebar {
    text-align: left;
  }

  .profile-photo-placeholder {
    margin: 0 0 1rem 0;
  }

  .cv-item {
    grid-template-columns: 130px 1fr;
    gap: 1rem;
  }

  .footer-grid {
    grid-template-columns: 2fr 1fr 1fr;
  }
}

/* Desktop */
@media (min-width: 1024px) {
  .container {
    padding: 0 2rem;
  }

  h1 { font-size: 3rem; }
  h2 { font-size: 2rem; }

  .hero {
    padding: 6rem 0 7rem;
  }

  .hero h1 {
    font-size: 3.25rem;
  }

  .features-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .contact-grid {
    grid-template-columns: 3fr 2fr;
  }

  .bio-grid {
    grid-template-columns: 280px 1fr;
  }
}

/* Wide */
@media (min-width: 1280px) {
  :root {
    --section-padding: 5rem 0;
  }
}