/**
 * login.css — Login sayfasi stilleri (Apple HIG)
 *
 * BEM naming convention: .login__element--modifier
 * Tam ekran ortalanmis kart, Apple tarzı temiz, minimal gorunum.
 */

/* ===== Ana Container — Tam ekran ortalama ===== */
.login {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  padding: var(--space-md);
  background-color: var(--color-bg-secondary);
}

/* ===== Kart Container ===== */
.login__container {
  width: 100%;
  max-width: 400px;
  padding: var(--space-2xl);
  background-color: var(--color-bg-primary);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-lg);
}

/* ===== Header — Logo, Baslik, Alt baslik ===== */
.login__header {
  text-align: center;
  margin-bottom: var(--space-2xl);
}

.login__logo {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 56px;
  height: 56px;
  margin-bottom: var(--space-lg);
  background: var(--color-brand-primary);
  border-radius: var(--radius-lg);
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-bold);
  color: #ffffff;
  letter-spacing: -0.5px;
  user-select: none;
}

.login__title {
  font-size: var(--font-size-2xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-text-primary);
  letter-spacing: var(--letter-spacing-tight);
  margin-bottom: var(--space-xs);
}

.login__subtitle {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
}

/* ===== Banner — Hata ve bilgi mesajlari ===== */
.login__banner {
  display: none;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-md);
  border-radius: var(--radius-md);
  margin-bottom: var(--space-lg);
  font-size: var(--font-size-sm);
  line-height: 1.4;
}

.login__banner--visible {
  display: flex;
}

.login__banner--error {
  background-color: var(--color-error-bg);
  color: var(--color-error);
}

.login__banner--info {
  background-color: var(--color-info-bg);
  color: var(--color-brand-primary);
}

.login__banner-icon {
  flex-shrink: 0;
  font-size: var(--font-size-lg);
  line-height: 1;
}

.login__banner-text {
  flex: 1;
}

/* ===== Form ===== */
.login__form {
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
}

/* ===== Field — Input wrapper ===== */
.login__field {
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
  position: relative;
}

.login__label {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-secondary);
}

.login__input-wrapper {
  position: relative;
}

.login__input {
  width: 100%;
  padding: 12px 16px;
  font-size: var(--font-size-base);
  color: var(--color-text-primary);
  background-color: var(--color-bg-input);
  border: 1px solid transparent;
  border-radius: var(--radius-md);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.login__input::placeholder {
  color: var(--color-text-placeholder);
}

.login__input:focus {
  border-color: var(--color-border-focus);
  box-shadow: 0 0 0 3px var(--color-brand-light);
  outline: none;
}

/* Hata durumunda input */
.login__input--error {
  border-color: var(--color-error);
}

.login__input--error:focus {
  border-color: var(--color-error);
  box-shadow: 0 0 0 3px var(--color-error-bg);
}

/* Inline hata mesaji */
.login__error {
  display: none;
  font-size: var(--font-size-xs);
  color: var(--color-error);
  margin-top: 2px;
}

.login__error--visible {
  display: block;
}

/* ===== Password Toggle ===== */
.login__password-toggle {
  position: absolute;
  right: 12px;
  top: 50%;
  transform: translateY(-50%);
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  padding: 0;
  border: none;
  background: transparent;
  color: var(--color-text-tertiary);
  cursor: pointer;
  border-radius: var(--radius-sm);
  transition: color var(--transition-fast);
}

.login__password-toggle:hover {
  color: var(--color-text-primary);
}

/* Password input icin sag padding (toggle butonu icin yer ac) */
.login__input--has-toggle {
  padding-right: 48px;
}

/* ===== Submit Butonu ===== */
.login__submit {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  width: 100%;
  padding: 14px 24px;
  margin-top: var(--space-sm);
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-semibold);
  color: #ffffff;
  background-color: var(--color-brand-primary);
  border: none;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: background-color var(--transition-fast), transform var(--transition-fast);
}

.login__submit:hover {
  background-color: var(--color-brand-hover);
}

.login__submit:active {
  transform: scale(0.98);
}

.login__submit:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.login__submit:disabled:hover {
  background-color: var(--color-brand-primary);
}

/* ===== Loading Spinner ===== */
.login__spinner {
  display: none;
  width: 18px;
  height: 18px;
  border: 2px solid rgba(255, 255, 255, 0.3);
  border-top-color: #ffffff;
  border-radius: 50%;
  animation: login-spin 0.6s linear infinite;
}

.login__submit--loading .login__spinner {
  display: block;
}

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

/* ===== Responsive — Mobil Uyumluluk ===== */
@media (max-width: 480px) {
  .login {
    padding: var(--space-sm);
    align-items: flex-start;
    padding-top: 10vh;
  }

  .login__container {
    padding: var(--space-xl) var(--space-lg);
    border-radius: var(--radius-lg);
  }

  .login__title {
    font-size: var(--font-size-xl);
  }

  .login__header {
    margin-bottom: var(--space-xl);
  }
}