/* =========================================================
   60 let AIESEC v Česku – Custom Colour & Layout Overrides
   Palette: Navy + Gold (derived from reference image)
   ========================================================= */

/* -------------------------
   1. Colour tokens
   ------------------------- */

:root {
  --navy-900: #0b1630;   /* deep navy */
  --navy-800: #162447;   /* softer navy */
  --navy-700: #1f2f5c;

  --gold-600: #c9a24d;   /* primary gold */
  --gold-500: #e2c06f;   /* highlight gold */

  --text-light: #f5f4ef; /* warm off-white */
  --text-muted: #b6b6b6; /* muted grey */
}

/* -------------------------
   2. Global resets / base
   ------------------------- */

body {
  background-color: var(--navy-900);
  color: var(--text-light);
}

p {
  color: var(--text-light);
}

a {
  color: var(--gold-600);
  text-decoration: none;
}

a:hover {
  color: var(--gold-500);
}

h1,
h2,
h3,
h4,
h5 {
  color: var(--text-light);
  font-weight: 500;
}

/* -------------------------
   3. Navigation
   ------------------------- */

.navbar {
  background-color: var(--navy-900);
}

.navbar-brand {
  color: var(--gold-600);
  font-weight: 600;
}

.navbar-brand:hover {
  color: var(--gold-500);
}

.navbar .nav-link {
  color: var(--text-light);
  font-weight: 400;
}

.navbar .nav-link:hover,
.navbar .nav-link.active {
  color: var(--gold-500);
}

/* mobile toggler */
.navbar-toggler {
  border-color: rgba(255, 255, 255, 0.3);
}

/* -------------------------
   4. Hero section
   ------------------------- */

.hero-section {
  background-color: var(--navy-900);
  height: calc(100vh - 51px);
  padding-top: 100px;
  overflow: hidden;
}

.hero-section h1 {
  color: var(--text-light);
  font-size: clamp(2.8rem, 6vw, 4.5rem);
  line-height: 1.15;
  padding-bottom: 0.1em;
  padding-top: 2em;
  font-feature-settings: "kern";
  -webkit-font-smoothing: antialiased;
}

.hero-section p {
  color: var(--text-light);
}

/* CTA button in hero */
.hero-section .btn {
  border: 1px solid var(--gold-600);
  color: var(--gold-600);
  background-color: transparent;
}

.hero-section .btn:hover {
  background-color: var(--gold-600);
  color: var(--navy-900);
}

/* -------------------------
   5. Section backgrounds
   ------------------------- */

.section-padding {
  background-color: var(--navy-900);
}

.section-padding:nth-of-type(even) {
  background-color: var(--navy-800);
}

/* offset for anchor scrolling under sticky nav */
section {
  scroll-margin-top: 90px;
}

/* -------------------------
   6. Programme / Schedule
   ------------------------- */

.schedule-section ul {
  list-style: disc;
  padding-left: 1.2rem;
}

.schedule-section li {
  color: var(--text-light);
  margin-bottom: 0.5rem;
}

/* -------------------------
   7. Speakers (Artists cards)
   ------------------------- */

.artists-thumb {
  background-color: var(--navy-800);
  border: 1px solid rgba(201, 162, 77, 0.35);
}

.artists-info {
  padding: 1.5rem;
}

.artists-info h5 {
  color: var(--gold-500);
  margin-bottom: 0.5rem;
}

.artists-info p {
  color: var(--text-muted);
  margin-bottom: 0;
}

/* -------------------------
   8. Registration / Pricing
   ------------------------- */

.pricing-section {
  background-color: var(--navy-800);
}

.pricing-section p {
  color: var(--text-light);
}

.pricing-section .btn {
  border: 1px solid var(--gold-600);
  color: var(--gold-600);
  background-color: transparent;
}

.pricing-section .btn:hover {
  background-color: var(--gold-600);
  color: var(--navy-900);
}

/* -------------------------
   9. Footer
   ------------------------- */

.site-footer {
  background-color: var(--navy-900);
  border-top: 1px solid rgba(201, 162, 77, 0.3);
}

.site-footer p {
  color: var(--text-muted);
}

.site-footer a {
  color: var(--gold-600);
}

.site-footer a:hover {
  color: var(--gold-500);
}

/* -------------------------
   10. Optional subtle divider
   ------------------------- */

.section-divider {
  width: 60px;
  height: 2px;
  background-color: var(--gold-600);
  margin: 1.5rem auto;
}

/* -------------------------
   11. Accessibility tweaks
   ------------------------- */

@media (prefers-reduced-motion: reduce) {
  * {
    scroll-behavior: auto !important;
    animation: none !important;
    transition: none !important;
  }
}

/* =========================
   Hero background image
   ========================= */

.hero-bg {
  position: relative;
  background-image: url("../images/hero-background_2.jpg");
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background-color: rgba(11, 22, 48, 0.78);
  z-index: 1;
}

.hero-bg .container {
  position: relative;
  z-index: 2;
}

/* =========================
   Section Light
   ========================= */

.section-light {
  background-color: #F6F1EC;
  color: #1a1a1a;
}

.section-light h1,
.section-light h2,
.section-light h3,
.section-light h4 {
  color: #0b1630;
}

.section-light p,
.section-light li {
  color: #333333;
}

/* =========================================
   Navbar transparency control
   ========================================= */

/* Default (top of page, NOT sticky) */
.sticky-wrapper:not(.is-sticky) .navbar {
  background-color: transparent;
}

/* Sticky state (on scroll) */
.sticky-wrapper.is-sticky .navbar {
  background-color: var(--navy-900);
}

/* Smooth transition */
.navbar {
  transition: background-color 0.25s ease;
}

/* =========================================
   Navbar logo
   ========================================= */

.navbar-logo {
  height: 40px;
  width: auto;
  display: block;
}

/* Slightly smaller logo when sticky */
.sticky-wrapper.is-sticky .navbar-logo {
  height: 34px;
}