/* ============================================================
   auth modal — login / register / forgot / reset / check-email
   ============================================================ */

.auth-modal {
  position: fixed;
  inset: 0;
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  background: rgba(15, 12, 10, 0.48);
  -webkit-backdrop-filter: blur(6px) saturate(120%);
          backdrop-filter: blur(6px) saturate(120%);
  opacity: 0;
  transition: opacity var(--t-med) var(--ease);
}
.auth-modal[hidden] { display: none; }
.auth-modal.is-open { opacity: 1; }

.auth-modal-card {
  position: relative;
  width: 100%;
  max-width: 420px;
  background: var(--card);
  border-radius: 6px;
  padding: 32px 28px 28px;
  box-shadow: var(--shadow-3);
  transform: translateY(12px) scale(0.98);
  opacity: 0;
  transition: transform var(--t-med) var(--ease), opacity var(--t-med) var(--ease);
}
.auth-modal.is-open .auth-modal-card {
  transform: translateY(0) scale(1);
  opacity: 1;
}

.auth-close {
  position: absolute;
  top: 12px;
  right: 12px;
  width: 36px;
  height: 36px;
  border: 0;
  background: transparent;
  border-radius: 50%;
  cursor: pointer;
  display: grid;
  place-items: center;
  color: var(--ink-3);
  transition: background var(--t-fast) var(--ease), color var(--t-fast) var(--ease);
}
.auth-close:hover { background: rgba(0,0,0,0.05); color: var(--ink); }

/* Tab nav */
.auth-tabs {
  display: flex;
  gap: 4px;
  border-bottom: 1px solid var(--line);
  margin: 0 0 22px;
}
.auth-tab {
  flex: 1;
  padding: 12px 8px;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.02em;
  color: var(--ink-3);
  background: transparent;
  border: 0;
  border-bottom: 2px solid transparent;
  margin-bottom: -1px;
  cursor: pointer;
  transition: color var(--t-fast) var(--ease), border-color var(--t-fast) var(--ease);
}
.auth-tab[aria-selected="true"] {
  color: #4f1e23;
  border-bottom-color: #4f1e23;
}
.auth-tab:hover { color: var(--ink); }

/* States */
.auth-state { display: none; }
.auth-state.is-active { display: block; animation: authFadeIn var(--t-med) var(--ease); }
@keyframes authFadeIn { from { opacity: 0; transform: translateY(4px); } to { opacity: 1; transform: none; } }

/* Headings (used in non-tab states) */
.auth-heading {
  margin: 4px 0 18px;
  font-size: 20px;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--ink);
}
.auth-sub {
  margin: -10px 0 18px;
  font-size: 13px;
  line-height: 1.5;
  color: var(--ink-2);
}

/* Form */
.auth-form { display: flex; flex-direction: column; gap: 12px; }
.auth-field { display: flex; flex-direction: column; gap: 6px; }
.auth-field label {
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--ink-3);
}
.auth-field input[type="text"],
.auth-field input[type="email"],
.auth-field input[type="password"],
.auth-field input[type="tel"] {
  width: 100%;
  padding: 12px 14px;
  font: inherit;
  font-size: 15px;
  color: var(--ink);
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: 4px;
  transition: border-color var(--t-fast) var(--ease), box-shadow var(--t-fast) var(--ease), background var(--t-fast) var(--ease);
}
.auth-field input:focus {
  outline: none;
  border-color: #4f1e23;
  background: var(--card);
  box-shadow: 0 0 0 3px rgba(79, 30, 35, 0.12);
}
.auth-field input:disabled { opacity: 0.6; cursor: not-allowed; }

.auth-check {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 12px;
  line-height: 1.5;
  color: var(--ink-2);
  cursor: pointer;
  margin-top: 4px;
}
.auth-check input[type="checkbox"] {
  margin-top: 2px;
  accent-color: #4f1e23;
  cursor: pointer;
}

.auth-row-between {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 12px;
}
.auth-row-between a,
.auth-link-btn {
  background: transparent;
  border: 0;
  padding: 4px 0;
  font: inherit;
  font-size: 12px;
  color: #4f1e23;
  text-decoration: underline;
  text-underline-offset: 3px;
  cursor: pointer;
}
.auth-link-btn:hover { color: var(--ink); }

/* Primary button — krem-altın gradient */
.auth-btn-primary {
  margin-top: 4px;
  padding: 13px 18px;
  font: inherit;
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.02em;
  color: #2b1610;
  background-image: linear-gradient(135deg,
    #c9a060 0%,
    #f5dc9b 35%,
    #e8c870 55%,
    #b88b3a 100%);
  background-size: 180% 180%;
  background-position: 50% 50%;
  border: 0;
  border-radius: 4px;
  cursor: pointer;
  box-shadow: 0 8px 20px rgba(184, 139, 58, 0.25);
  transition: transform var(--t-fast) var(--ease), box-shadow var(--t-fast) var(--ease), background-position var(--t-med) var(--ease);
}
.auth-btn-primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 12px 26px rgba(184, 139, 58, 0.32);
  background-position: 100% 0%;
}
.auth-btn-primary:active { transform: translateY(0); }
.auth-btn-primary:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  transform: none;
  box-shadow: none;
}

.auth-btn-ghost {
  margin-top: 8px;
  padding: 10px 16px;
  font: inherit;
  font-size: 13px;
  color: var(--ink-2);
  background: transparent;
  border: 1px solid var(--line);
  border-radius: 4px;
  cursor: pointer;
  transition: background var(--t-fast) var(--ease), color var(--t-fast) var(--ease);
}
.auth-btn-ghost:hover { background: var(--bg-soft); color: var(--ink); }

/* Error & info */
.auth-error {
  margin: 4px 0 0;
  padding: 10px 12px;
  font-size: 13px;
  line-height: 1.4;
  color: var(--accent);
  background: rgba(230, 57, 70, 0.08);
  border-radius: 4px;
}
.auth-error[hidden] { display: none; }

.auth-info {
  margin: 4px 0 0;
  padding: 10px 12px;
  font-size: 13px;
  line-height: 1.4;
  color: #2a6b4e;
  background: rgba(42, 157, 143, 0.10);
  border-radius: 4px;
}
.auth-info[hidden] { display: none; }

/* check-email state */
.auth-check-email {
  text-align: center;
  padding: 8px 4px 4px;
}
.auth-check-email .auth-check-icon {
  display: inline-grid;
  place-items: center;
  width: 56px;
  height: 56px;
  margin: 0 auto 16px;
  border-radius: 50%;
  background: linear-gradient(135deg, #f5dc9b, #b88b3a);
  color: #2b1610;
}
.auth-check-email h3 {
  margin: 0 0 8px;
  font-size: 18px;
  font-weight: 700;
}
.auth-check-email p {
  margin: 0 0 4px;
  font-size: 14px;
  line-height: 1.5;
  color: var(--ink-2);
}
.auth-check-email .auth-email-strong { color: var(--ink); font-weight: 600; }
.auth-check-email .auth-spam-hint {
  display: block;
  margin-top: 12px;
  font-size: 12px;
  color: var(--ink-3);
}

.auth-foot {
  margin: 18px 0 0;
  font-size: 13px;
  color: var(--ink-2);
  text-align: center;
}
.auth-foot a, .auth-foot button {
  color: #4f1e23;
  text-decoration: underline;
  text-underline-offset: 3px;
  background: transparent;
  border: 0;
  font: inherit;
  cursor: pointer;
}

/* Body lock when modal open */
body.auth-locked { overflow: hidden; }

/* ============================================================
   Mobile bottom sheet
   ============================================================ */
@media (max-width: 640px) {
  .auth-modal {
    align-items: flex-end;
    padding: 0;
  }
  .auth-modal-card {
    max-width: 100%;
    border-radius: 18px 18px 0 0;
    padding: 28px 22px 32px;
    transform: translateY(100%);
    box-shadow: 0 -16px 48px rgba(0,0,0,0.18);
  }
  .auth-modal.is-open .auth-modal-card { transform: translateY(0); }

  /* drag handle visual cue */
  .auth-modal-card::before {
    content: "";
    position: absolute;
    top: 8px;
    left: 50%;
    transform: translateX(-50%);
    width: 40px;
    height: 4px;
    border-radius: 4px;
    background: var(--line);
  }
  .auth-close { top: 14px; right: 10px; }
  .auth-tabs { margin-top: 6px; }
}

/* ============================================================
   prefers-reduced-motion — fade only
   ============================================================ */
@media (prefers-reduced-motion: reduce) {
  .auth-modal,
  .auth-modal-card,
  .auth-state { transition: opacity var(--t-fast) linear !important; animation: none !important; }
  .auth-modal-card { transform: none !important; }
  .auth-modal.is-open .auth-modal-card { transform: none !important; }
}