/* ===== Base ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
:root {
  --primary: #1a237e;
  --primary-light: #3949ab;
  --accent: #64b5f6;
  --bg: #f4f6fb;
  --card: #fff;
  --text: #222;
  --text-light: #666;
  --border: #e0e0e0;
  --success: #4caf50;
  --radius: 12px;
}
body { font-family: 'Heebo', 'Inter', sans-serif; background: var(--bg); color: var(--text); line-height: 1.6; }
[dir="ltr"] body { font-family: 'Inter', 'Heebo', sans-serif; }
.container { max-width: 900px; margin: 0 auto; padding: 0 20px; }
.hidden { display: none !important; }
a { color: var(--primary); text-decoration: none; }

/* ===== Lang Toggle ===== */
.lang-toggle {
  position: fixed; top: 16px; left: 16px; z-index: 1000;
  width: 44px; height: 44px; border-radius: 50%;
  background: #fff; border: 2px solid var(--border);
  cursor: pointer; font-size: 20px;
  box-shadow: 0 2px 8px rgba(0,0,0,.1);
  transition: transform .2s;
  display: flex; align-items: center; justify-content: center;
}
.lang-toggle:hover { transform: scale(1.1); border-color: var(--primary); }

/* ===== Header ===== */
.header {
  background: var(--primary);
  color: #fff; padding: 14px 0;
  box-shadow: 0 2px 12px rgba(0,0,0,.15);
}
.header .container { display: flex; justify-content: space-between; align-items: center; }
.logo { display: flex; align-items: center; gap: 10px; }
.logo-name { font-size: 22px; font-weight: 700; color: #fff; }
.logo-sub { font-size: 12px; color: var(--accent); display: block; }
.header nav { display: flex; gap: 20px; }
.header nav a { color: rgba(255,255,255,.85); font-size: 14px; transition: color .2s; }
.header nav a:hover { color: #fff; }

/* ===== Hero ===== */
.hero {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
  color: #fff; text-align: center; padding: 50px 0 40px;
}
.hero h1 { font-size: 30px; font-weight: 700; margin-bottom: 10px; }
.hero p { font-size: 16px; opacity: .85; }

/* ===== Progress ===== */
.progress-bar { background: #fff; border-bottom: 1px solid var(--border); padding: 16px 0; }
.steps { display: flex; justify-content: center; gap: 30px; }
.step {
  display: flex; align-items: center; gap: 8px;
  color: var(--text-light); font-size: 14px;
}
.step span {
  width: 28px; height: 28px; border-radius: 50%;
  background: var(--border); color: #fff;
  display: flex; align-items: center; justify-content: center;
  font-size: 13px; font-weight: 600;
}
.step.active span { background: var(--primary); }
.step.active { color: var(--primary); font-weight: 600; }
.step.done span { background: var(--success); }

/* ===== Cards ===== */
.card {
  background: var(--card); border-radius: var(--radius);
  padding: 30px; margin: 24px 0;
  box-shadow: 0 2px 12px rgba(0,0,0,.06);
}
.card h2 { color: var(--primary); margin-bottom: 20px; font-size: 22px; }
.card-success { text-align: center; }
.success-icon { font-size: 50px; margin-bottom: 16px; }
.tip { background: #fff8e1; border: 1px solid #ffe082; border-radius: 8px; padding: 10px 14px; margin-bottom: 16px; font-size: 14px; color: #f57f17; }

/* ===== Forms ===== */
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-bottom: 20px; }
@media (max-width: 600px) { .form-grid { grid-template-columns: 1fr; } }
.form-group { position: relative; }
.form-group label { display: block; font-size: 13px; font-weight: 500; color: var(--text-light); margin-bottom: 6px; }
.form-group input, .form-group select {
  width: 100%; padding: 10px 14px; border: 1.5px solid var(--border);
  border-radius: 8px; font-size: 15px; font-family: inherit;
  transition: border-color .2s; background: #fff;
}
.form-group input:focus, .form-group select:focus { outline: none; border-color: var(--primary); }
.quick-dates { display: flex; gap: 6px; margin-bottom: 8px; flex-wrap: wrap; }
.quick-dates button {
  padding: 5px 12px; border: 1px solid var(--border); border-radius: 6px;
  background: #fff; cursor: pointer; font-size: 12px; font-family: inherit;
  transition: all .2s;
}
.quick-dates button:hover { background: var(--primary); color: #fff; border-color: var(--primary); }

/* ===== Dropdown ===== */
.dropdown {
  position: absolute; top: 100%; left: 0; right: 0; z-index: 100;
  background: #fff; border: 1px solid var(--border); border-radius: 8px;
  max-height: 200px; overflow-y: auto; display: none;
  box-shadow: 0 4px 16px rgba(0,0,0,.1);
}
.dropdown.show { display: block; }
.dropdown-item {
  padding: 10px 14px; cursor: pointer; font-size: 14px;
  border-bottom: 1px solid #f5f5f5; transition: background .15s;
}
.dropdown-item:hover { background: #e3f2fd; }

/* ===== Buttons ===== */
.btn-primary {
  display: inline-block; background: var(--primary); color: #fff;
  padding: 12px 32px; border: none; border-radius: 8px;
  font-size: 16px; font-weight: 600; cursor: pointer;
  font-family: inherit; transition: background .2s;
}
.btn-primary:hover { background: var(--primary-light); }
.btn-primary:disabled { background: #bbb; cursor: not-allowed; }
.btn-download { font-size: 18px; padding: 14px 40px; margin: 16px 0; }
.btn-secondary {
  display: inline-block; background: transparent; color: var(--primary);
  padding: 10px 24px; border: 2px solid var(--primary); border-radius: 8px;
  font-size: 14px; font-weight: 500; cursor: pointer; font-family: inherit;
  transition: all .2s; margin-top: 10px;
}
.btn-secondary:hover { background: var(--primary); color: #fff; }

/* ===== Flight Cards ===== */
.flight-card {
  border: 1px solid var(--border); border-radius: var(--radius);
  padding: 18px; margin-bottom: 14px; transition: box-shadow .2s;
  display: flex; flex-wrap: wrap; gap: 14px; align-items: center;
}
.flight-card:hover { box-shadow: 0 4px 16px rgba(0,0,0,.08); }
.flight-airline { display: flex; align-items: center; gap: 10px; min-width: 120px; }
.flight-airline img { width: 36px; height: 36px; border-radius: 4px; }
.flight-airline-name { font-weight: 600; font-size: 14px; }
.flight-type { font-size: 11px; color: var(--text-light); }
.flight-route { flex: 1; min-width: 200px; }
.flight-segment { display: flex; align-items: center; gap: 12px; margin: 4px 0; font-size: 13px; }
.flight-segment .time { font-weight: 600; min-width: 80px; }
.flight-segment .iata { font-weight: 700; color: var(--primary); min-width: 35px; }
.flight-segment .airport { color: var(--text-light); font-size: 12px; }
.flight-arrow { color: var(--accent); font-size: 18px; }
.flight-meta { text-align: center; min-width: 80px; }
.flight-duration { font-size: 13px; color: var(--text-light); }
.flight-price-box { text-align: center; min-width: 100px; }
.flight-price { font-size: 22px; font-weight: 700; color: var(--primary); }
.flight-select {
  margin-top: 8px; padding: 8px 18px; border: none; border-radius: 6px;
  background: var(--primary); color: #fff; cursor: pointer;
  font-size: 13px; font-family: inherit; font-weight: 500;
  transition: background .2s;
}
.flight-select:hover { background: var(--primary-light); }
.layover-badge {
  background: #fff3e0; color: #e65100; padding: 4px 10px;
  border-radius: 4px; font-size: 11px; display: inline-block; margin: 4px 0;
}

/* ===== Loading ===== */
.loading { text-align: center; padding: 40px; }
.spinner {
  width: 40px; height: 40px; border: 4px solid var(--border);
  border-top-color: var(--primary); border-radius: 50%;
  animation: spin .8s linear infinite; margin: 0 auto 16px;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ===== Modal ===== */
.modal-overlay {
  position: fixed; inset: 0; background: rgba(0,0,0,.5);
  display: flex; align-items: center; justify-content: center;
  z-index: 2000;
}
.modal {
  background: #fff; border-radius: var(--radius); padding: 40px;
  max-width: 400px; width: 90%; text-align: center; position: relative;
}
.modal-close {
  position: absolute; top: 10px; right: 14px; background: none;
  border: none; font-size: 24px; cursor: pointer; color: #999;
}
.donate-icon { margin-bottom: 16px; }
.modal h3 { color: var(--primary); margin-bottom: 12px; }

/* ===== Footer ===== */
footer {
  background: var(--primary); color: rgba(255,255,255,.7);
  text-align: center; padding: 20px 0; margin-top: 40px; font-size: 13px;
}