/* =============================================
   AKTIF YAPI - Global Styles
   Dark Mode + Mobile Responsive
   ============================================= */

@import url('https://fonts.googleapis.com/css2?family=Montserrat:wght@300;400;500;600;700;800&family=Open+Sans:wght@300;400;500;600&display=swap');

/* ---- CSS Variables (Light Mode Default) ---- */
:root {
  --bg-primary: #ffffff;
  --bg-secondary: #f4f6f9;
  --bg-card: #ffffff;
  --text-primary: #1a1a2e;
  --text-secondary: #4a5568;
  --text-muted: #718096;
  --accent: #e53e3e;
  --accent-dark: #c53030;
  --accent-light: #feb2b2;
  --border: #e2e8f0;
  --shadow: rgba(0, 0, 0, 0.08);
  --shadow-md: rgba(0, 0, 0, 0.14);
  --header-bg: rgba(255,255,255,0.97);
  --header-border: rgba(0,0,0,0.08);
  --footer-bg: #1a1a2e;
  --footer-text: #a0aec0;
  --footer-heading: #ffffff;
  --nav-link: #2d3748;
  --nav-link-hover: #e53e3e;
  --logo-dark-display: block;
  --logo-light-display: none;
  --input-bg: #f7fafc;
  --input-border: #cbd5e0;
  --overlay: rgba(0,0,0,0.5);
  --transition: 0.3s ease;
}

/* ---- Dark Mode Variables ---- */
[data-theme="dark"] {
  --bg-primary: #0f0f1a;
  --bg-secondary: #1a1a2e;
  --bg-card: #16213e;
  --text-primary: #e2e8f0;
  --text-secondary: #a0aec0;
  --text-muted: #718096;
  --accent: #fc8181;
  --accent-dark: #e53e3e;
  --accent-light: #742a2a;
  --border: #2d3748;
  --shadow: rgba(0, 0, 0, 0.3);
  --shadow-md: rgba(0, 0, 0, 0.5);
  --header-bg: rgba(15,15,26,0.97);
  --header-border: rgba(255,255,255,0.06);
  --footer-bg: #0a0a14;
  --footer-text: #718096;
  --footer-heading: #e2e8f0;
  --nav-link: #e2e8f0;
  --nav-link-hover: #fc8181;
  --logo-dark-display: none;
  --logo-light-display: block;
  --input-bg: #1a1a2e;
  --input-border: #2d3748;
  --overlay: rgba(0,0,0,0.7);
}

/* ---- Reset & Base ---- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; font-size: 16px; }

body {
  font-family: 'Open Sans', sans-serif;
  background-color: var(--bg-primary);
  color: var(--text-primary);
  transition: background-color 0.3s ease, color 0.3s ease;
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

main { flex: 1; }

img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }

h1, h2, h3, h4, h5 {
  font-family: 'Montserrat', sans-serif;
  line-height: 1.3;
}

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

/* ---- Header ---- */
#header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  background: var(--header-bg);
  border-bottom: 1px solid var(--header-border);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  transition: background var(--transition), box-shadow var(--transition);
  height: 72px;
}

#header.scrolled {
  box-shadow: 0 4px 20px var(--shadow-md);
}

#header-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
  height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

/* Logo */
#logo a { display: flex; align-items: center; }
#logo img { height: 44px; width: auto; }
#logo-dark { display: var(--logo-dark-display); }
#logo-light { display: var(--logo-light-display); }

/* Nav */
#main-nav ul {
  display: flex;
  align-items: center;
  gap: 6px;
}

#main-nav ul li a {
  font-family: 'Montserrat', sans-serif;
  font-size: 13.5px;
  font-weight: 600;
  color: var(--nav-link);
  padding: 8px 12px;
  border-radius: 6px;
  transition: color var(--transition), background var(--transition);
  white-space: nowrap;
  letter-spacing: 0.3px;
}

#main-nav ul li a:hover,
#main-nav ul li a.active {
  color: var(--accent);
  background: var(--bg-secondary);
}

/* Header Right Controls */
#header-controls {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}

/* Theme Toggle */
#theme-toggle {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  color: var(--text-primary);
  width: 38px;
  height: 38px;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  transition: all var(--transition);
  flex-shrink: 0;
}
#theme-toggle:hover { background: var(--accent); color: #fff; border-color: var(--accent); }

/* Language Switcher */
.language-switcher { position: relative; }

.lang-menu-trigger {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  color: var(--text-primary);
  padding: 7px 14px;
  border-radius: 20px;
  cursor: pointer;
  font-family: 'Montserrat', sans-serif;
  font-size: 13px;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 6px;
  transition: all var(--transition);
  white-space: nowrap;
}
.lang-menu-trigger:hover { background: var(--accent); color: #fff; border-color: var(--accent); }
.lang-menu-trigger .arrow { font-size: 10px; transition: transform var(--transition); }
.language-switcher.open .lang-menu-trigger .arrow { transform: rotate(180deg); }

.lang-dropdown {
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 10px;
  box-shadow: 0 8px 30px var(--shadow-md);
  min-width: 160px;
  overflow: hidden;
  display: none;
  z-index: 999;
}
.language-switcher.open .lang-dropdown { display: block; }

.lang-dropdown li a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 11px 16px;
  font-family: 'Montserrat', sans-serif;
  font-size: 13px;
  font-weight: 600;
  color: var(--text-primary);
  transition: background var(--transition), color var(--transition);
}
.lang-dropdown li a:hover { background: var(--bg-secondary); color: var(--accent); }

/* Burger Menu */
#burger-menu {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  color: var(--text-primary);
  font-size: 22px;
  padding: 8px;
  border-radius: 8px;
  transition: color var(--transition);
  flex-shrink: 0;
}
#burger-menu:hover { color: var(--accent); }

/* Mobile Nav Wrapper */
#nav-wrapper {
  display: flex;
  align-items: center;
  gap: 12px;
}

/* ---- Banners ---- */
.page-banner {
  padding: 100px 0 60px;
  text-align: center;
  color: #fff;
  background-size: cover;
  background-position: center;
  position: relative;
}
.page-banner::after {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--overlay);
  z-index: 0;
}
.page-banner .container { position: relative; z-index: 1; }
.page-banner h1 { font-size: clamp(28px, 5vw, 52px); font-weight: 800; margin-bottom: 12px; }
.page-banner p { font-size: clamp(14px, 2vw, 20px); font-weight: 300; opacity: 0.9; }

/* ---- Section Titles ---- */
.section-title {
  font-size: clamp(22px, 3.5vw, 38px);
  font-weight: 800;
  text-align: center;
  margin-bottom: 50px;
  position: relative;
  padding-bottom: 18px;
}
.section-title::after {
  content: '';
  position: absolute;
  bottom: 0; left: 50%;
  transform: translateX(-50%);
  width: 60px; height: 4px;
  background: var(--accent);
  border-radius: 2px;
}

/* Content Sections */
.content-section {
  padding: 80px 0;
  background: var(--bg-primary);
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.content-section.alt-bg { background: var(--bg-secondary); }
.content-section.is-visible { opacity: 1; transform: translateY(0); }

/* ---- Footer ---- */
#footer {
  background: var(--footer-bg);
  margin-top: auto;
}

#footer-top {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 40px;
  padding: 60px 20px 40px;
  max-width: 1200px;
  margin: 0 auto;
}

#footer-info-wrapper {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 30px;
}

#footer h3 {
  font-family: 'Montserrat', sans-serif;
  font-size: 14px;
  font-weight: 700;
  color: var(--footer-heading);
  text-transform: uppercase;
  letter-spacing: 1.5px;
  margin-bottom: 18px;
  padding-bottom: 10px;
  border-bottom: 2px solid var(--accent);
  display: inline-block;
}

#footer p, #footer a, #footer li {
  font-size: 13.5px;
  color: var(--footer-text);
  transition: color var(--transition);
}
#footer a:hover { color: var(--accent); }
#footer ul li { margin-bottom: 9px; }
#footer p { margin-bottom: 9px; display: flex; align-items: flex-start; gap: 8px; }
#footer p i { margin-top: 3px; flex-shrink: 0; color: var(--accent); }

#footer-map-wrapper {
  width: 280px;
  height: 220px;
  border-radius: 12px;
  overflow: hidden;
  border: 1px solid rgba(255,255,255,0.08);
  flex-shrink: 0;
}
#footer-map-wrapper iframe { width: 100%; height: 100%; border: 0; }

#footer-social ul { display: flex; flex-direction: column; gap: 9px; }
#footer-social ul li a { display: flex; align-items: center; gap: 9px; }
#footer-social ul li a i { width: 18px; text-align: center; color: var(--accent); }

#footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.06);
  padding: 18px 20px;
}
#footer-bottom-container {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
}
#footer-bottom p { font-size: 12.5px; color: var(--footer-text); }
#footer-bottom a { color: var(--accent); }
#footer-bottom a:hover { color: var(--footer-heading); }

/* ---- Buttons ---- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 28px;
  border-radius: 8px;
  font-family: 'Montserrat', sans-serif;
  font-size: 14px;
  font-weight: 700;
  cursor: pointer;
  border: 2px solid transparent;
  transition: all var(--transition);
  text-decoration: none;
}
.btn-primary { background: var(--accent); color: #fff; border-color: var(--accent); }
.btn-primary:hover { background: var(--accent-dark); border-color: var(--accent-dark); transform: translateY(-2px); box-shadow: 0 6px 20px rgba(229,62,62,0.35); }
.btn-outline { background: transparent; color: var(--accent); border-color: var(--accent); }
.btn-outline:hover { background: var(--accent); color: #fff; }

/* ---- Forms ---- */
.form-group { margin-bottom: 20px; }
.form-group label { display: block; font-size: 13px; font-weight: 600; color: var(--text-secondary); margin-bottom: 6px; font-family: 'Montserrat', sans-serif; }
.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: 12px 16px;
  background: var(--input-bg);
  border: 1px solid var(--input-border);
  border-radius: 8px;
  font-family: 'Open Sans', sans-serif;
  font-size: 14px;
  color: var(--text-primary);
  transition: border-color var(--transition), box-shadow var(--transition);
  outline: none;
}
.form-group input:focus,
.form-group textarea:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(229,62,62,0.12);
}
.form-group textarea { resize: vertical; min-height: 130px; }

/* ---- Cards ---- */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  overflow: hidden;
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
  box-shadow: 0 2px 12px var(--shadow);
}
.card:hover { transform: translateY(-6px); box-shadow: 0 16px 40px var(--shadow-md); border-color: var(--accent); }

/* ---- Scrollbar ---- */
::-webkit-scrollbar { width: 8px; }
::-webkit-scrollbar-track { background: var(--bg-secondary); }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: var(--accent); }

/* ============================================
   RESPONSIVE
   ============================================ */

/* Tablet */
@media (max-width: 992px) {
  #footer-top { grid-template-columns: 1fr; }
  #footer-map-wrapper { width: 100%; height: 200px; }
}

/* Mobile */
@media (max-width: 768px) {
  #burger-menu { display: flex; align-items: center; justify-content: center; }

  #nav-wrapper {
    position: fixed;
    top: 72px; left: 0; right: 0;
    background: var(--header-bg);
    border-bottom: 1px solid var(--header-border);
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 16px 0 20px;
    transform: translateY(-110%);
    opacity: 0;
    transition: transform 0.35s cubic-bezier(0.4,0,0.2,1), opacity 0.35s ease;
    z-index: 999;
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    box-shadow: 0 10px 30px var(--shadow-md);
  }

  #nav-wrapper.open {
    transform: translateY(0);
    opacity: 1;
  }

  #main-nav { width: 100%; }
  #main-nav ul { flex-direction: column; gap: 2px; padding: 0 16px; }
  #main-nav ul li { width: 100%; }
  #main-nav ul li a {
    display: block;
    padding: 12px 16px;
    font-size: 15px;
    border-radius: 8px;
  }

  .language-switcher { padding: 0 16px; margin-top: 8px; }
  .lang-menu-trigger { width: 100%; justify-content: space-between; border-radius: 8px; }
  .lang-dropdown { position: static; box-shadow: none; border-radius: 8px; margin-top: 4px; }

  .content-section { padding: 50px 0; }
  #footer-info-wrapper { grid-template-columns: 1fr 1fr; }

  #footer-bottom-container { flex-direction: column; text-align: center; }
}

@media (max-width: 480px) {
  #footer-info-wrapper { grid-template-columns: 1fr; }
  #footer-top { padding: 40px 16px 30px; }
}