/* ============================================
   GoraAdv — Natural Theme
   Forest × Desert × Mountain
   ============================================ */

:root {
  /* Backgrounds — deep forest night */
  --bg:           rgb(11, 14, 9);
  --bg-surface:   rgb(17, 22, 13);
  --bg-elevated:  rgb(25, 32, 19);
  --bg-input:     rgb(15, 19, 11);

  /* Text — warm parchment & leather */
  --text-primary:   rgb(242, 237, 224);
  --text-secondary: rgb(148, 134, 108);
  --text-muted:     rgb(90, 82, 66);

  /* Accent — amber ember, desert rock at golden hour */
  --accent:       rgb(212, 128, 46);
  --accent-hover: rgb(232, 148, 60);
  --accent-dim:   rgba(212, 128, 46, 0.13);
  --accent-glow:  rgba(212, 128, 46, 0.25);

  /* Nature palette */
  --forest:       rgb(48, 100, 60);
  --forest-dark:  rgb(30, 60, 38);
  --sage:         rgb(110, 148, 100);
  --sand:         rgb(190, 158, 104);
  --stone:        rgb(118, 128, 120);
  --earth:        rgb(80, 55, 30);

  /* Borders — forest shadow */
  --border:       rgb(38, 48, 30);
  --border-focus: rgb(212, 128, 46);

  /* Gradients */
  --grad-accent:  linear-gradient(135deg, rgb(180, 100, 30), rgb(232, 148, 60));
  --grad-nature:  linear-gradient(135deg, rgb(48, 100, 60), rgb(212, 128, 46));
  --grad-bg:      linear-gradient(160deg, rgb(11,14,9) 0%, rgb(20,26,14) 55%, rgb(28,22,14) 100%);

  /* Feedback */
  --success: rgb(76, 175, 80);
  --error:   rgb(220, 80, 60);
  --warning: rgb(212, 160, 40);

  /* Tier colors — route display */
  --tier-t1: #5C3317;
  --tier-t2: #C8763A;
  --tier-t3: #C4A040;
  --tier-t4: #6A7A6A;
  --tier-t5: #3A6B42;

  --radius:    10px;
  --radius-sm: 7px;
  --shadow:    0 2px 16px rgba(0, 0, 0, 0.55);
  --shadow-lg: 0 8px 36px rgba(0, 0, 0, 0.65);
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  background: var(--bg);
  color: var(--text-primary);
  line-height: 1.6;
}

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

a:hover {
  color: var(--accent-hover);
}

/* ---- Navbar ---- */
.navbar {
  background: rgba(11, 14, 9, 0.93);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  padding: 0 1.5rem;
  height: 70px;
  display: flex;
  align-items: center;
  position: sticky;
  top: 0;
  z-index: 1000;
  border-bottom: 1px solid var(--border);
  box-shadow: 0 1px 0 rgba(212, 128, 46, 0.18), var(--shadow);
}

.navbar-brand {
  display: flex;
  align-items: center;
  flex-shrink: 0;
}

.navbar-brand img {
  height: 58px;
  width: auto;
}

/* Nav links — absolutely centered regardless of logo/right widths */
.navbar-nav {
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  align-items: center;
  gap: 0.2rem;
  list-style: none;
}

.navbar-nav a {
  color: var(--text-secondary);
  padding: 0.4rem 0.85rem;
  border-radius: var(--radius-sm);
  font-size: 0.88rem;
  transition: all 0.15s;
  white-space: nowrap;
}

.navbar-nav a:hover,
.navbar-nav a.active {
  background: rgba(212, 128, 46, 0.1);
  color: var(--text-primary);
}

/* Right group: support + auth */
.navbar-right {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: 0.6rem;
  flex-shrink: 0;
}

.navbar-auth {
  display: flex;
  gap: 0.5rem;
}

/* ---- Alpha Badge ---- */
.navbar-alpha {
  font-size: 0.6rem;
  font-weight: 700;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--forest);
  background: rgba(48, 100, 60, 0.15);
  border: 1px solid rgba(48, 100, 60, 0.35);
  border-radius: 4px;
  padding: 0.18rem 0.45rem;
  margin-left: 0.5rem;
  align-self: center;
  white-space: nowrap;
  flex-shrink: 0;
}

/* ---- PRO lock overlay ---- */
.pro-lock-overlay {
  position: absolute;
  inset: 0;
  background: rgba(11, 14, 9, 0.88);
  backdrop-filter: blur(3px);
  -webkit-backdrop-filter: blur(3px);
  border-radius: 8px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.55rem;
  z-index: 10;
  padding: 0.75rem;
}
.pro-lock-overlay .lock-label {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--text-muted);
}
.pro-lock-overlay .lock-cta {
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--accent);
  background: rgba(212,128,46,0.1);
  border: 1px solid rgba(212,128,46,0.3);
  border-radius: 6px;
  padding: 0.25rem 0.75rem;
  text-decoration: none;
  transition: background 0.15s;
}
.pro-lock-overlay .lock-cta:hover {
  background: rgba(212,128,46,0.2);
}

/* ---- Buttons ---- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.55rem 1.2rem;
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  font-weight: 500;
  cursor: pointer;
  border: none;
  transition: all 0.18s;
  text-decoration: none;
}

.btn-primary {
  background: var(--grad-accent);
  color: white;
  box-shadow: 0 2px 12px rgba(212, 128, 46, 0.3);
}

.btn-primary:hover {
  filter: brightness(1.1);
  color: white;
  box-shadow: 0 4px 18px rgba(212, 128, 46, 0.45);
  transform: translateY(-1px);
}

.btn-secondary {
  background: var(--bg-elevated);
  color: var(--text-primary);
  border: 1px solid var(--border);
}

.btn-secondary:hover {
  background: rgb(32, 40, 24);
  color: var(--text-primary);
  border-color: rgb(60, 75, 46);
}

.btn-outline {
  background: transparent;
  color: var(--accent);
  border: 1.5px solid var(--accent);
}

.btn-outline:hover {
  background: var(--accent-dim);
  color: var(--accent-hover);
}

.btn-ghost {
  background: transparent;
  color: var(--text-secondary);
  border: 1px solid var(--border);
}

.btn-ghost:hover {
  background: var(--bg-elevated);
  color: var(--text-primary);
}

.btn-sm {
  padding: 0.3rem 0.8rem;
  font-size: 0.82rem;
}

.btn-lg {
  padding: 0.8rem 2rem;
  font-size: 1rem;
  font-weight: 600;
  letter-spacing: 0.2px;
}

.btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
  transform: none !important;
}

/* ---- Cards ---- */
.card {
  background: var(--bg-elevated);
  border-radius: var(--radius);
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
  overflow: hidden;
}

.card-header {
  padding: 1rem 1.25rem 0.75rem;
  border-bottom: 1px solid var(--border);
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--text-primary);
}

.card-body {
  padding: 1.25rem;
}

/* ---- Forms ---- */
.form-group {
  margin-bottom: 1rem;
}

.form-label {
  display: block;
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--text-secondary);
  margin-bottom: 0.35rem;
  letter-spacing: 0.2px;
}

.form-control {
  width: 100%;
  padding: 0.6rem 0.9rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  background: var(--bg-input);
  color: var(--text-primary);
  transition: border-color 0.15s, box-shadow 0.15s;
  outline: none;
}

.form-control:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-dim);
}

.form-control::placeholder {
  color: var(--text-muted);
}

select.form-control option {
  background: var(--bg-elevated);
  color: var(--text-primary);
}

/* ---- Autocomplete Dropdown ---- */
.autocomplete-wrapper {
  position: relative;
}

.autocomplete-dropdown {
  position: absolute;
  top: calc(100% + 2px);
  left: 0; right: 0;
  background: var(--bg-elevated);
  border: 1px solid var(--accent);
  border-radius: var(--radius-sm);
  list-style: none;
  z-index: 1001;
  max-height: 220px;
  overflow-y: auto;
  box-shadow: var(--shadow-lg);
  display: none;
  margin: 0; padding: 0;
}

.autocomplete-dropdown.open { display: block; }

.autocomplete-dropdown li {
  padding: 0.55rem 0.85rem;
  font-size: 0.82rem;
  color: var(--text-primary);
  cursor: pointer;
  border-bottom: 1px solid var(--border);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  transition: background 0.1s;
}

.autocomplete-dropdown li:last-child { border-bottom: none; }

.autocomplete-dropdown li:hover,
.autocomplete-dropdown li.active {
  background: var(--accent-dim);
  color: var(--sand);
}

/* ---- Tier Badge ---- */
.tier-badge {
  display: inline-block;
  padding: 0.2rem 0.55rem;
  border-radius: 4px;
  font-size: 0.75rem;
  font-weight: 600;
  color: white;
}

.tier-T1 { background: var(--tier-t1); }
.tier-T2 { background: var(--tier-t2); }
.tier-T3 { background: var(--tier-t3); color: #1a1a1a; }
.tier-T4 { background: var(--tier-t4); }
.tier-T5 { background: var(--tier-t5); }

/* ---- Loading Spinner ---- */
.spinner {
  width: 18px;
  height: 18px;
  border: 2px solid rgba(255,255,255,0.2);
  border-top-color: white;
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
  display: inline-block;
}

@keyframes spin { to { transform: rotate(360deg); } }

/* ---- Toast ---- */
.toast-container {
  position: fixed;
  bottom: 5rem;
  right: 1.5rem;
  z-index: 9999;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.toast {
  background: var(--bg-elevated);
  color: var(--text-primary);
  padding: 0.75rem 1.1rem;
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-lg);
  font-size: 0.88rem;
  animation: slideIn 0.22s ease;
  max-width: 300px;
  border: 1px solid var(--border);
}

.toast.success { border-left: 3px solid var(--forest); }
.toast.error   { border-left: 3px solid var(--error); }
.toast.info    { border-left: 3px solid var(--accent); }

@keyframes slideIn {
  from { transform: translateX(20px); opacity: 0; }
  to   { transform: translateX(0);    opacity: 1; }
}

/* ---- Donation Button ---- */
.donate-btn {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  color: var(--text-muted);
  padding: 0.42rem 0.85rem;
  border-radius: 20px;
  font-size: 0.77rem;
  font-weight: 500;
  cursor: pointer;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 0.32rem;
  transition: all 0.2s;
  box-shadow: var(--shadow);
  white-space: nowrap;
}

.donate-btn:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: var(--bg-elevated);
  box-shadow: 0 0 0 1px var(--accent-dim), var(--shadow);
}

/* ---- Misc ---- */
.text-center { text-align: center; }
.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.mb-1 { margin-bottom: 0.5rem; }
.mb-2 { margin-bottom: 1rem; }
.d-flex { display: flex; }
.align-center { align-items: center; }
.gap-1 { gap: 0.5rem; }
.gap-2 { gap: 1rem; }
.flex-1 { flex: 1; }

/* ============================================
   Mobile — Hamburger Button
   ============================================ */

.nav-hamburger {
  display: none;
  flex-direction: column;
  justify-content: space-between;
  width: 22px;
  height: 16px;
  cursor: pointer;
  background: transparent;
  border: none;
  padding: 0;
  margin-left: auto;
  flex-shrink: 0;
}

.nav-hamburger span {
  display: block;
  height: 2px;
  width: 100%;
  background: var(--text-secondary);
  border-radius: 2px;
  transition: transform 0.25s ease, opacity 0.2s ease, background 0.15s;
  transform-origin: center;
}

.nav-hamburger.open span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
  background: var(--text-primary);
}
.nav-hamburger.open span:nth-child(2) {
  opacity: 0;
  transform: scaleX(0);
}
.nav-hamburger.open span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
  background: var(--text-primary);
}

/* Mobile nav dropdown */
.nav-mobile-menu {
  display: none;
  position: fixed;
  top: 70px;
  left: 0; right: 0;
  background: rgba(11, 14, 9, 0.98);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
  flex-direction: column;
  z-index: 990;
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.6);
  padding-bottom: 0.75rem;
}

.nav-mobile-menu.open {
  display: flex;
}

.nav-mobile-menu a {
  display: block;
  padding: 0.85rem 1.5rem;
  font-size: 1rem;
  font-weight: 500;
  color: var(--text-secondary);
  border-bottom: 1px solid rgba(38, 48, 30, 0.6);
  transition: color 0.15s, background 0.15s;
  text-decoration: none;
}

.nav-mobile-menu a:last-of-type {
  border-bottom: none;
}

.nav-mobile-menu a:hover,
.nav-mobile-menu a.active {
  color: var(--text-primary);
  background: rgba(212, 128, 46, 0.07);
}

.nav-mobile-auth-row {
  display: flex;
  gap: 0.5rem;
  padding: 0.75rem 1.5rem 0;
  border-top: 1px solid var(--border);
  margin-top: 0.25rem;
}

.nav-mobile-auth-row .btn {
  flex: 1;
  justify-content: center;
  font-size: 0.85rem;
  text-align: center;
}

/* ============================================
   Responsive Breakpoints
   ============================================ */

/* Tablet — tighten nav, hide kofi  */
@media (max-width: 900px) {
  .donate-btn { display: none !important; }
  .navbar-nav a {
    padding: 0.35rem 0.5rem;
    font-size: 0.82rem;
  }
}

/* Mobile — hamburger mode */
@media (max-width: 768px) {
  .navbar-nav  { display: none !important; }
  .navbar-right { display: none !important; }
  .nav-hamburger { display: flex; }
}

/* Small phone tweaks */
@media (max-width: 480px) {
  .navbar-brand img { height: 48px; }
  .navbar-alpha { display: none; }
}