/* nowaChat — giriş/kayıt ekranı */

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

html, body { height: 100%; }

body {
  font-family: var(--font-sans);
  background: var(--bg);
  color: var(--text);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

/* ---------- Arka plan: orbs + grain ---------- */

.bg {
  position: fixed;
  inset: 0;
  overflow: hidden;
  z-index: 0;
}

.orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(70px);
  opacity: 0.5;
  will-change: transform;
}

.orb-1 {
  width: 55vmax; height: 55vmax;
  top: -20vmax; left: -15vmax;
  background: radial-gradient(circle at 35% 35%, var(--violet), transparent 70%);
  animation: drift-1 70s var(--ease-out) infinite alternate;
}

.orb-2 {
  width: 45vmax; height: 45vmax;
  bottom: -18vmax; right: -12vmax;
  background: radial-gradient(circle at 60% 40%, var(--cyan), transparent 70%);
  opacity: 0.35;
  animation: drift-2 85s var(--ease-out) infinite alternate;
}

.orb-3 {
  width: 35vmax; height: 35vmax;
  top: 45%; left: 55%;
  background: radial-gradient(circle at 50% 50%, var(--fuchsia), transparent 70%);
  opacity: 0.28;
  animation: drift-3 60s var(--ease-out) infinite alternate;
}

@keyframes drift-1 {
  to { transform: translate(8vmax, 6vmax) scale(1.12); }
}
@keyframes drift-2 {
  to { transform: translate(-7vmax, -5vmax) scale(1.08); }
}
@keyframes drift-3 {
  to { transform: translate(-10vmax, 4vmax) scale(0.9); }
}

/* İnce grain — data-URI SVG turbulence, harici istek yok */
.noise {
  position: absolute;
  inset: 0;
  opacity: 0.05;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

/* ---------- Sahne + tilt ---------- */

.stage {
  position: relative;
  z-index: 1;
  min-height: 100dvh;
  display: grid;
  place-items: center;
  padding: max(var(--space-4), env(safe-area-inset-top))
           max(var(--space-3), env(safe-area-inset-right))
           max(var(--space-4), env(safe-area-inset-bottom))
           max(var(--space-3), env(safe-area-inset-left));
}

.tilt {
  perspective: 1200px;
  width: 100%;
  max-width: 420px;
}

/* ---------- Glass kart ---------- */

.card {
  position: relative;
  border-radius: var(--radius-card);
  background: var(--glass-bg-strong);
  backdrop-filter: blur(24px) saturate(1.3);
  -webkit-backdrop-filter: blur(24px) saturate(1.3);
  box-shadow: var(--glow-card);
  padding: var(--space-5) var(--space-4);
  transform-style: preserve-3d;
  will-change: transform;
  /* fill-mode 'both' olsaydı bitişteki transform:none tilt'in inline transform'unu kalıcı ezerdi */
  animation: card-in 700ms var(--ease-out) backwards;
}

/* Gradient kenarlık — mask tekniği */
.card::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  padding: 1px;
  background: var(--gradient-brand-soft);
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite: xor;
          mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
          mask-composite: exclude;
  pointer-events: none;
}

@keyframes card-in {
  from {
    opacity: 0;
    transform: scale(0.96) translateY(12px);
    filter: blur(14px);
  }
  to {
    opacity: 1;
    transform: none;
    filter: blur(0);
  }
}

/* ---------- Başlık ---------- */

.card-head {
  text-align: center;
  margin-bottom: var(--space-4);
}

.logo {
  display: inline-block;
  filter: drop-shadow(0 0 18px rgba(217, 70, 239, 0.45));
  margin-bottom: var(--space-2);
}

.title {
  font-size: 2rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  background: var(--gradient-brand);
  -webkit-background-clip: text;
          background-clip: text;
  color: transparent;
  text-shadow: 0 0 32px rgba(139, 92, 246, 0.35);
}

.tagline {
  margin-top: var(--space-1);
  color: var(--text-dim);
  font-size: 0.95rem;
  letter-spacing: 0.01em;
}

/* ---------- Segment kontrol ---------- */

.segment {
  position: relative;
  display: grid;
  grid-template-columns: 1fr 1fr;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-pill);
  padding: 4px;
  margin-bottom: var(--space-4);
}

.segment-pill {
  position: absolute;
  top: 4px;
  left: 4px;
  width: calc(50% - 4px);
  height: calc(100% - 8px);
  border-radius: calc(var(--radius-pill) - 3px);
  background: linear-gradient(135deg, rgba(139, 92, 246, 0.35), rgba(217, 70, 239, 0.25));
  box-shadow: 0 0 20px -4px rgba(139, 92, 246, 0.5), inset 0 0 0 1px rgba(255, 255, 255, 0.08);
  transition: transform var(--dur-med) var(--ease-out), opacity var(--dur-med) ease;
}

.card[data-mode="register"] .segment-pill {
  transform: translateX(100%);
}

/* Şifremi unuttum modunda pill söner (hiçbir sekme aktif değil) */
.card[data-mode="forgot"] .segment-pill {
  opacity: 0;
}

.segment-btn {
  position: relative;
  z-index: 1;
  min-height: var(--tap-target);
  border: 0;
  background: none;
  color: var(--text-dim);
  font: inherit;
  font-weight: 600;
  font-size: 0.95rem;
  border-radius: calc(var(--radius-pill) - 3px);
  cursor: pointer;
  transition: color var(--dur-fast) ease;
}

.segment-btn[aria-selected="true"] {
  color: var(--text);
}

.segment-btn:focus-visible {
  outline: none;
  box-shadow: var(--glow-focus);
}

/* ---------- Paneller ---------- */

.panels {
  position: relative;
  overflow: hidden;
  transition: height var(--dur-med) var(--ease-out);
}

.panel {
  transition: opacity var(--dur-med) ease, transform var(--dur-med) var(--ease-out);
}

.panel.leaving {
  position: absolute;
  inset: 0 0 auto 0;
  opacity: 0;
  transform: translateY(-6px);
  pointer-events: none;
}

.panel.entering {
  animation: panel-in var(--dur-med) var(--ease-out) both;
}

@keyframes panel-in {
  from { opacity: 0; transform: translateY(8px); }
  to   { opacity: 1; transform: none; }
}

/* ---------- Form alanları ---------- */

.field {
  margin-bottom: var(--space-3);
}

.field label {
  display: block;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text-dim);
  margin-bottom: var(--space-1);
  letter-spacing: 0.02em;
}

input[type="text"],
input[type="email"],
input[type="password"] {
  width: 100%;
  min-height: var(--tap-target);
  padding: 0 var(--space-3);
  font: inherit;
  font-size: 0.95rem;
  color: var(--text);
  background: var(--input-bg);
  border: 1px solid var(--input-border);
  border-radius: var(--radius-field);
  transition: border-color var(--dur-fast) ease, box-shadow var(--dur-fast) ease, background var(--dur-fast) ease;
}

input::placeholder {
  color: var(--text-faint);
}

input:hover {
  border-color: rgba(255, 255, 255, 0.18);
}

input:focus-visible {
  outline: none;
  border-color: var(--violet);
  box-shadow: var(--glow-focus);
  background: rgba(255, 255, 255, 0.07);
}

/* Şifre alanı + göz ikonu */
.input-wrap {
  position: relative;
}

.input-wrap input {
  padding-right: calc(var(--tap-target) + 2px);
}

.eye {
  position: absolute;
  top: 50%;
  right: 4px;
  transform: translateY(-50%);
  width: var(--tap-target);
  height: calc(var(--tap-target) - 6px);
  display: grid;
  place-items: center;
  border: 0;
  background: none;
  color: var(--text-faint);
  border-radius: calc(var(--radius-field) - 4px);
  cursor: pointer;
  transition: color var(--dur-fast) ease;
}

.eye:hover { color: var(--text-dim); }

.eye:focus-visible {
  outline: none;
  box-shadow: var(--glow-focus);
  color: var(--text-dim);
}

/* ---------- Checkbox ---------- */

.check {
  display: flex;
  align-items: flex-start;
  gap: var(--space-2);
  font-size: 0.87rem;
  color: var(--text-dim);
  cursor: pointer;
  min-height: 28px;
}

.check input {
  position: absolute;
  opacity: 0;
  width: 1px;
  height: 1px;
}

.check .box {
  flex: none;
  width: 20px;
  height: 20px;
  margin-top: 1px;
  border-radius: 6px;
  border: 1.5px solid var(--input-border);
  background: var(--input-bg);
  transition: background var(--dur-fast) ease, border-color var(--dur-fast) ease, box-shadow var(--dur-fast) ease;
  position: relative;
}

.check .box::after {
  content: "";
  position: absolute;
  inset: 4px 5px 6px;
  border: solid #fff;
  border-width: 0 0 2px 2px;
  transform: rotate(-45deg) scale(0);
  transform-origin: center;
  transition: transform var(--dur-fast) var(--ease-out);
}

.check input:checked + .box {
  background: var(--gradient-brand);
  border-color: transparent;
  box-shadow: 0 0 14px -2px rgba(217, 70, 239, 0.5);
}

.check input:checked + .box::after {
  transform: rotate(-45deg) scale(1);
}

.check input:focus-visible + .box {
  box-shadow: var(--glow-focus);
}

.check.kvkk {
  margin-bottom: var(--space-3);
  line-height: 1.45;
}

/* ---------- Satırlar & linkler ---------- */

.row-between {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-2);
  margin-bottom: var(--space-4);
}

.link {
  color: var(--cyan);
  text-decoration: none;
  font-size: 0.87rem;
  font-weight: 500;
  border-radius: 4px;
}

.link:hover { text-decoration: underline; }

.link:focus-visible {
  outline: none;
  box-shadow: var(--glow-focus);
}

/* ---------- CTA buton ---------- */

.cta {
  width: 100%;
  min-height: calc(var(--tap-target) + 6px);
  border: 0;
  border-radius: var(--radius-field);
  font: inherit;
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: 0.01em;
  color: #fff;
  background: var(--gradient-brand);
  background-size: 150% 150%;
  box-shadow: var(--glow-cta);
  cursor: pointer;
  transition: box-shadow var(--dur-fast) ease, transform var(--dur-fast) var(--ease-out), background-position var(--dur-med) ease, opacity var(--dur-fast) ease;
}

.cta:hover {
  background-position: 100% 50%;
  box-shadow: 0 10px 40px -6px rgba(217, 70, 239, 0.6), 0 0 24px -4px rgba(139, 92, 246, 0.5);
  transform: translateY(-1px);
}

.cta:active {
  transform: translateY(0) scale(0.985);
}

.cta:focus-visible {
  outline: none;
  box-shadow: var(--glow-cta), var(--glow-focus);
}

.cta:disabled {
  opacity: 0.45;
  cursor: not-allowed;
  box-shadow: none;
  transform: none;
}

/* ---------- Doğrulama: hint satırları ---------- */

.hint {
  font-size: 0.8rem;
  line-height: 1.35;
  margin-top: var(--space-1);
  min-height: 0;
  color: var(--text-dim);
  transition: color var(--dur-fast) ease;
}

.hint:empty { display: none; }

.hint.err { color: var(--amber); }
.hint.ok  { color: var(--cyan); }
.hint.checking { color: var(--text-faint); font-style: italic; }

/* Hatalı alan: amber kenarlık + glow (kırmızı yok — nowaChat aksanı) */
input[aria-invalid="true"] {
  border-color: rgba(251, 191, 36, 0.65);
  box-shadow: 0 0 0 3px rgba(251, 191, 36, 0.14);
}

/* Geçerli alan: ince cyan onay */
input.valid {
  border-color: rgba(34, 211, 238, 0.45);
}

/* Shake — hata anında alan hafifçe sarsılır */
.field.shake .input-wrap,
.field.shake > input {
  animation: shake 320ms var(--ease-out);
}

@keyframes shake {
  20%  { transform: translateX(-5px); }
  40%  { transform: translateX(4px); }
  60%  { transform: translateX(-3px); }
  80%  { transform: translateX(2px); }
}

/* ---------- Şifre güç göstergesi ---------- */

.strength {
  height: 4px;
  margin-top: var(--space-2);
  border-radius: 2px;
  background: rgba(255, 255, 255, 0.07);
  overflow: hidden;
}

.strength-bar {
  display: block;
  height: 100%;
  width: 0;
  border-radius: inherit;
  transition: width var(--dur-med) var(--ease-out), background-color var(--dur-med) ease, box-shadow var(--dur-med) ease;
}

.strength-bar[data-level="weak"] {
  width: 33%;
  background: var(--amber);
  box-shadow: 0 0 10px -2px rgba(251, 191, 36, 0.7);
}

.strength-bar[data-level="medium"] {
  width: 66%;
  background: var(--fuchsia);
  box-shadow: 0 0 10px -2px rgba(217, 70, 239, 0.7);
}

.strength-bar[data-level="strong"] {
  width: 100%;
  background: var(--cyan);
  box-shadow: 0 0 10px -2px rgba(34, 211, 238, 0.7);
}

/* ---------- Şifre kuralları listesi ---------- */

.rules {
  list-style: none;
  margin-top: var(--space-2);
  display: grid;
  gap: 3px;
}

.rules li {
  font-size: 0.8rem;
  color: var(--text-faint);
  display: flex;
  align-items: center;
  gap: 7px;
  transition: color var(--dur-fast) ease;
}

.rules li::before {
  content: "";
  flex: none;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  border: 1.5px solid var(--text-faint);
  transition: background var(--dur-fast) ease, border-color var(--dur-fast) ease;
}

.rules li.ok {
  color: var(--text-dim);
}

.rules li.ok::before {
  border-color: transparent;
  background:
    url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 14 14'%3E%3Cpath d='M3.5 7.2 6 9.6l4.5-5' fill='none' stroke='%230a0a0f' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E") center/10px no-repeat,
    var(--gradient-brand);
}

/* ---------- Genel hata banner'ı ---------- */

.banner {
  margin-bottom: var(--space-3);
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-field);
  font-size: 0.87rem;
  line-height: 1.4;
  color: var(--amber);
  background: rgba(251, 191, 36, 0.08);
  border: 1px solid rgba(251, 191, 36, 0.25);
  animation: panel-in var(--dur-med) var(--ease-out);
}

/* ---------- Buton: loading + spinner ---------- */

.linkbtn {
  background: none;
  border: 0;
  padding: 0;
  cursor: pointer;
  font: inherit;
}

.spinner {
  display: inline-block;
  width: 16px;
  height: 16px;
  margin-right: 9px;
  vertical-align: -3px;
  border: 2px solid rgba(255, 255, 255, 0.35);
  border-top-color: #fff;
  border-radius: 50%;
  animation: spin 700ms linear infinite;
}

@keyframes spin {
  to { transform: rotate(1turn); }
}

.cta.loading,
.cta.loading:disabled {
  opacity: 0.92;
  cursor: progress;
  box-shadow: var(--glow-cta);
  transform: none;
}

/* İkincil (ghost) buton — "Girişe Dön" vb. */
.cta.ghost {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  box-shadow: none;
  color: var(--text);
}

.cta.ghost:hover {
  background: rgba(255, 255, 255, 0.08);
  box-shadow: none;
  transform: none;
}

/* ---------- Başarı geçişi: kart parlayıp kapanır ---------- */

.card.success {
  pointer-events: none;
  animation: card-out 620ms var(--ease-out) forwards;
}

@keyframes card-out {
  30% {
    opacity: 1;
    transform: scale(1.02);
    box-shadow:
      0 0 130px -10px rgba(217, 70, 239, 0.7),
      0 0 90px -10px rgba(139, 92, 246, 0.6),
      0 28px 70px -24px rgba(0, 0, 0, 0.65);
    filter: none;
  }
  100% {
    opacity: 0;
    transform: scale(1.08);
    filter: blur(12px);
  }
}

/* ---------- Karşılama (geçici — sohbet arayüzü gelene dek) ---------- */

.welcome {
  text-align: center;
  animation: card-in 700ms var(--ease-out) backwards;
}

.welcome-title {
  margin-top: var(--space-3);
  font-size: 1.6rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  background: var(--gradient-brand);
  -webkit-background-clip: text;
          background-clip: text;
  color: transparent;
}

.welcome-note {
  margin-top: var(--space-2);
  color: var(--text-dim);
  font-size: 0.95rem;
}

/* ---------- Şifremi unuttum ---------- */

.forgot-lead {
  font-size: 0.9rem;
  line-height: 1.5;
  color: var(--text-dim);
  margin-bottom: var(--space-3);
}

.back {
  display: block;
  margin: var(--space-3) auto 0;
  min-height: var(--tap-target);
}

.sent {
  text-align: center;
  padding: var(--space-2) 0;
  animation: panel-in var(--dur-med) var(--ease-out);
}

.sent-icon {
  width: 56px;
  height: 56px;
  margin: 0 auto var(--space-3);
  border-radius: 50%;
  display: grid;
  place-items: center;
  font-size: 1.5rem;
  color: #fff;
  background: var(--gradient-brand);
  box-shadow: var(--glow-cta);
}

.sent h2 {
  font-size: 1.25rem;
  letter-spacing: -0.01em;
  margin-bottom: var(--space-2);
}

.sent p {
  color: var(--text-dim);
  font-size: 0.9rem;
  line-height: 1.55;
  margin-bottom: var(--space-4);
}

/* ---------- Mobil ---------- */

@media (max-width: 480px) {
  .card {
    padding: var(--space-4) var(--space-3);
  }
  .title { font-size: 1.75rem; }
}

/* ---------- Reduced motion ---------- */

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  .orb { animation: none; }
}