/*
 * css/core.css — loaded on every page (after this file: page bundle + footer.css).
 * § TOKENS, § RESET/BASE, § COMPONENTS (.btn), § HEADER (nav, mobile menu).
 */
@import url("https://fonts.googleapis.com/css2?family=Lora:ital,wght@0,400;0,500;0,600;0,700;1,400&family=Plus+Jakarta+Sans:wght@400;500;600;700;800&display=swap");

/* § TOKENS — colors, radii, glass, shadows */
:root {
  /* Palette: near-black headings, navy hero H1s, blue accent */
  --color-primary: #1FA8F2;
  --color-primary-hover: #1696DA;
  --color-bg-soft-blue: #EAF6FF;
  --color-text: #374151;
  --color-text-secondary: #6B7280;
  /* Navy text: main hero H1s (home, TURPE, etc.) — use --color-hero-h1 */
  --color-hero-h1: #1f2a3a;
  /* All other headings (H2–H4, non-hero H1): near-black */
  --color-section-heading: #0A0A0A;
  --color-heading: #0A0A0A;
  --color-bg: #FFFFFF;
  --color-card: #FFFFFF;
  --color-border: #E6ECF2;
  --color-white: #FFFFFF;
  --color-hover-bg: #F7FAFD;
  --color-section-tint: #F2F7FD;
  /* Legacy aliases — dark text (not navy) */
  --primary-dark: #0A0A0A;
  --navy: #1f2a3a;
  --color-button-navy: var(--navy);
  --color-button-navy-hover: #162237;
  --text: var(--color-text-secondary);
  --muted: var(--color-text-secondary);
  --bg: var(--color-bg);
  --white: var(--color-white);
  --border: var(--color-border);
  --accent: var(--color-primary);
  --accent-blue: var(--color-primary);
  --pill-bg: var(--color-bg);
  --logo-filter: brightness(0) saturate(100%);
  /* Nav logo → --navy (#1f2a3a); from black base via filter stack */
  --logo-filter-navy: brightness(0) saturate(100%) invert(12%) sepia(15%) saturate(1450%) hue-rotate(185deg) brightness(95%) contrast(90%);
  --white-logo-filter: brightness(0) invert(1);
  /* Radius */
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 18px;
  --radius-pill: 999px;
  /* Shadows */
  --shadow-sm: 0 6px 18px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 10px 28px rgba(0, 0, 0, 0.06);
  --shadow-glow-blue: 0 8px 20px rgba(31, 168, 242, 0.25);
  --shadow-card-hover: var(--shadow-md);
  /* 3D glass — shared by all cards and glass-style buttons */
  --glass-bg: rgba(255, 255, 255, 0.55);
  --glass-border: 1px solid rgba(255, 255, 255, 0.6);
  --glass-highlight: 0 1px 0 0 rgba(255, 255, 255, 0.8) inset;
  --glass-shadow: 0 8px 24px rgba(0, 0, 0, 0.06), 0 2px 8px rgba(0, 0, 0, 0.04);
  --glass-shadow-hover: 0 12px 32px rgba(0, 0, 0, 0.08), 0 4px 12px rgba(0, 0, 0, 0.05);
  --glass-blur: 12px;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Plus Jakarta Sans", system-ui, -apple-system, Segoe UI, Roboto,
    sans-serif;
  color: var(--color-text);
  background: var(--color-bg);
  overflow-x: hidden;
}

h1,
h2,
h3,
h4 {
  color: var(--color-section-heading);
}

html {
  overflow-x: hidden;
}

.page {
  max-width: 1200px;
  width: 100%;
  margin: 0 auto;
  min-height: 100vh;
  padding: 0 20px;
}

@media (max-width: 640px) {
  .page {
    padding: 0 12px;
  }
}

body.mobile-nav-open {
  overflow: hidden;
}

/* § COMPONENTS — buttons (shared across pages) */
.btn {
  text-decoration: none;
  border-radius: var(--radius-md);
  padding: 12px 20px;
  font-size: 15px;
  font-weight: 700;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  white-space: nowrap;
  transition: background 0.25s ease, box-shadow 0.25s ease, transform 0.2s ease, border-color 0.25s ease, color 0.25s ease;
}

/* Primary CTA — dark navy */
.btn-dark,
.btn-gradient {
  background: var(--color-button-navy);
  color: var(--color-white);
  border: none;
  box-shadow: var(--glass-highlight), 0 10px 24px rgba(31, 42, 58, 0.22);
}

.btn-dark:hover,
.btn-gradient:hover {
  background: var(--color-button-navy-hover);
  box-shadow: var(--glass-highlight), 0 12px 28px rgba(22, 34, 55, 0.28);
  transform: translateY(-2px);
}

.btn-dark:active,
.btn-gradient:active {
  transform: translateY(0);
}

/* Secondary — 3D glass */
.btn-outline {
  background: var(--glass-bg);
  backdrop-filter: blur(var(--glass-blur));
  -webkit-backdrop-filter: blur(var(--glass-blur));
  color: var(--color-text);
  border: var(--glass-border);
  box-shadow: var(--glass-highlight), var(--glass-shadow);
}

.btn-outline:hover {
  background: rgba(255, 255, 255, 0.7);
  box-shadow: 0 1px 0 0 rgba(255, 255, 255, 0.9) inset, var(--glass-shadow-hover);
  transform: translateY(-2px);
}

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

/* § HEADER — fixed bar; .header--hidden toggled from js/home.js */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: transparent;
  padding: calc(16px + env(safe-area-inset-top, 0px)) 20px 16px;
  transform: translateZ(0) translateY(0);
  -webkit-transform: translateZ(0) translateY(0);
  will-change: box-shadow, transform;
  transition: transform 0.3s ease-out, box-shadow 0.2s ease-out;
}

.header.header--hidden {
  transform: translateZ(0) translateY(-100%);
  -webkit-transform: translateZ(0) translateY(-100%);
}

.header-content {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 24px;
  padding: 10px 18px;
  background: #FFFFFF;
  border-radius: var(--radius-lg);
  max-width: 1120px;
  margin: 0 auto;
  border: none;
  box-shadow: none;
}

.logo {
  display: flex;
  align-items: center;
  height: 100%;
}

.logo-link {
  display: flex;
  align-items: center;
  text-decoration: none;
  cursor: pointer;
  transition: opacity 0.3s ease;
}

.logo-link:hover {
  opacity: 0.8;
}

.logo-image {
  height: 28px;
  width: auto;
  object-fit: contain;
  filter: var(--logo-filter-navy);
}

.nav {
  display: none;
  gap: 8px;
  align-items: center;
  justify-content: center;
}

.nav-link {
  color: var(--color-text);
  text-decoration: none;
  transition: all 0.2s ease;
  font-size: 14px;
  font-weight: 500;
  display: flex;
  align-items: center;
  gap: 6px;
  letter-spacing: 0.01em;
  border: none;
  border-radius: 0;
  padding: 8px 16px;
  background-color: transparent;
  cursor: pointer;
}

.nav-link:hover {
  color: var(--color-primary);
}

.nav-link.nav-login {
  padding: 8px 16px;
  border: none;
  background: transparent;
}

.nav-link.nav-login:hover {
  color: var(--color-primary);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 12px;
  justify-self: end;
}

/* Login — same footprint as .btn-cta-header, glass outline */
.btn-header-login.btn {
  border-radius: var(--radius-pill);
  padding: 10px 18px;
  font-size: 14px;
  font-weight: 600;
}

/* Nav CTA — dark navy */
.btn-cta-header {
  padding: 10px 18px;
  background: var(--color-button-navy);
  color: var(--color-white);
  border: none;
  border-radius: var(--radius-pill);
  cursor: pointer;
  font-size: 14px;
  font-weight: 600;
  transition: all 0.2s ease;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  box-shadow: var(--glass-highlight), 0 10px 24px rgba(31, 42, 58, 0.22);
}

.btn-cta-header:hover {
  background: var(--color-button-navy-hover);
  box-shadow: var(--glass-highlight), 0 12px 28px rgba(22, 34, 55, 0.28);
  transform: translateY(-1px);
}

.btn-lang-toggle {
  min-width: 42px;
  height: 36px;
  padding: 0 12px;
  background: var(--glass-bg);
  backdrop-filter: blur(var(--glass-blur));
  -webkit-backdrop-filter: blur(var(--glass-blur));
  border: var(--glass-border);
  border-radius: var(--radius-pill);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.06em;
  transition: all 0.2s ease;
  box-shadow: var(--glass-highlight), var(--glass-shadow);
}

.btn-lang-toggle:hover {
  background: rgba(255, 255, 255, 0.75);
  box-shadow: 0 1px 0 0 rgba(255, 255, 255, 0.9) inset, var(--glass-shadow-hover);
}

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

/* Hamburger / Nav toggle - hidden on desktop */
.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  padding: 10px;
  background: transparent;
  border: none;
  border-radius: 10px;
  cursor: pointer;
  z-index: 1002;
  transition: background 0.2s;
}

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

.nav-toggle-bar {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--color-text);
  border-radius: 1px;
  transition: transform 0.25s, opacity 0.25s;
}

body.mobile-nav-open .nav-toggle-bar:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

body.mobile-nav-open .nav-toggle-bar:nth-child(2) {
  opacity: 0;
}

body.mobile-nav-open .nav-toggle-bar:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* Mobile header & nav */
@media (max-width: 768px) {
  .nav-toggle {
    display: flex;
  }

  .header {
    padding: calc(20px + env(safe-area-inset-top, 0px)) 16px 12px;
  }

  .header-content {
    padding: 10px 14px;
    border-radius: 24px;
    flex-wrap: nowrap;
    gap: 12px;
    grid-template-columns: auto 1fr auto;
  }

  .logo-image {
    height: 22px !important;
    min-width: auto !important;
  }

  .nav {
    display: flex;
    position: fixed;
    inset: 0;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--color-card);
    backdrop-filter: blur(var(--glass-blur));
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 8px;
    padding: 80px 24px 40px;
    z-index: 1001;
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition: opacity 0.25s, visibility 0.25s;
  }

  body.mobile-nav-open .nav {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
  }

  .nav .nav-link {
    font-size: 18px;
    padding: 14px 20px;
    width: 100%;
    max-width: 280px;
    text-align: center;
  }

  .header-actions {
    gap: 8px;
  }

  .btn-cta-header {
    padding: 8px 14px !important;
    font-size: 13px !important;
    min-height: 36px;
    min-width: 0;
  }

  .btn-header-login.btn {
    padding: 8px 14px;
    font-size: 13px;
    min-height: 36px;
  }

  .btn-lang-toggle {
    min-width: 44px;
    height: 40px;
    font-size: 12px;
  }
}

@media (min-width: 769px) {
  .nav-toggle {
    display: none !important;
  }
}