:root {
  --bg-panel: #ffffff;
  --bg-media: #f2f2f2;
  --hairline: #e8e8ed;
  --border: #d2d2d7;
  --text-primary: #1d1d1f;
  --text-secondary: #6e6e73;
  --text-tertiary: #86868b;
  --accent: #0071e3;
  --accent-hover: #0077ed;
  --accent-soft: rgba(0, 113, 227, 0.08);
  --green-text: #1a7f37;
  --red-text: #c9241b;
  --r-ctl: 10px;
  --r-pill: 999px;
  --ease: cubic-bezier(0.2, 0.8, 0.2, 1);
}

*, *::before, *::after { box-sizing: border-box; }

html, body {
  height: 100%;
  margin: 0;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Inter', 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  background: var(--bg-panel);
  color: var(--text-primary);
  font-size: 15px;
  letter-spacing: -0.01em;
  -webkit-font-smoothing: antialiased;
  overflow: hidden;
}

.login-shell {
  display: flex;
  min-height: 100vh;
  width: 100%;
}

.login-media {
  flex: 1 1 50%;
  position: relative;
  background: #0a0a0a;
  overflow: hidden;
  min-height: 280px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.login-media video {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
}

.login-media-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    180deg,
    rgba(0, 0, 0, 0.45) 0%,
    rgba(0, 0, 0, 0.25) 40%,
    rgba(0, 0, 0, 0.72) 100%
  );
  pointer-events: none;
  z-index: 1;
}

.login-media-top,
.login-media-bottom {
  position: relative;
  z-index: 2;
  padding: 2rem 2.25rem;
}

.login-media-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem 1.25rem;
  align-items: center;
}

.login-media-tab {
  background: none;
  border: none;
  padding: 0.35rem 0;
  font: inherit;
  font-size: 0.82rem;
  font-weight: 500;
  color: rgba(255, 255, 255, 0.62);
  cursor: pointer;
  border-bottom: 2px solid transparent;
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease);
  letter-spacing: -0.01em;
}

.login-media-tab:hover {
  color: rgba(255, 255, 255, 0.92);
}

.login-media-tab.is-active {
  color: #fff;
  border-bottom-color: #fff;
}

.login-media-title {
  font-size: clamp(1.55rem, 2.5vw, 2.15rem);
  font-weight: 700;
  line-height: 1.12;
  letter-spacing: -0.035em;
  color: #fff;
  margin: 0 0 0.85rem;
  max-width: 22ch;
}

.login-media-desc {
  font-size: 0.98rem;
  line-height: 1.55;
  color: rgba(255, 255, 255, 0.82);
  margin: 0;
  max-width: 36rem;
}

.login-panel {
  flex: 1 1 50%;
  display: flex;
  flex-direction: column;
  align-items: stretch;
  justify-content: space-between;
  background: var(--bg-panel);
  padding: 2.5rem 2.5rem 0;
  position: relative;
  overflow-y: auto;
}

.login-panel-main {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  padding: 1rem 0 2rem;
}

.login-form-wrap {
  width: 100%;
  max-width: 400px;
}

.login-header {
  margin-bottom: 2rem;
}

.login-title {
  font-size: clamp(1.65rem, 2.4vw, 1.9rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.15;
  margin: 0 0 0.65rem;
  color: var(--text-primary);
}

.login-subtitle {
  margin: 0;
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.45;
}

.login-subtitle a {
  color: var(--accent);
  font-weight: 600;
  text-decoration: none;
}

.login-subtitle a:hover {
  color: var(--accent-hover);
  text-decoration: underline;
}

.form-label {
  display: block;
  font-weight: 500;
  color: var(--text-primary);
  font-size: 0.88rem;
  margin-bottom: 0.4rem;
}

.form-control {
  display: block;
  width: 100%;
  background: var(--bg-panel);
  color: var(--text-primary);
  border: 1px solid var(--hairline);
  border-radius: var(--r-ctl);
  padding: 0.78rem 0.9rem;
  font-size: 0.95rem;
  box-shadow: none;
  transition: border-color 0.18s var(--ease), box-shadow 0.18s var(--ease);
}

.form-control:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(0, 113, 227, 0.12);
  outline: none;
}

.form-control.is-invalid,
.was-validated .form-control:invalid {
  border-color: #ff3b30;
}

.invalid-feedback {
  color: var(--red-text);
  font-size: 0.82rem;
  margin-top: 0.25rem;
  display: none;
}

.was-validated .form-control:invalid ~ .invalid-feedback,
.form-control.is-invalid ~ .invalid-feedback {
  display: block;
}

::placeholder {
  color: var(--text-tertiary) !important;
  opacity: 1;
}

.field-group {
  margin-bottom: 1rem;
}

.btn-login {
  display: block;
  width: 100%;
  background: #000;
  color: #fff;
  border: none;
  border-radius: var(--r-pill);
  padding: 0.9rem 1.25rem;
  font-weight: 600;
  font-size: 0.98rem;
  letter-spacing: -0.01em;
  cursor: pointer;
  transition: background 0.18s var(--ease), opacity 0.18s var(--ease);
}

.btn-login:hover,
.btn-login:focus {
  background: #1a1a1a;
  color: #fff;
  outline: none;
}

.btn-login:active {
  background: #333;
}

.btn-login:disabled {
  opacity: 0.55;
  cursor: not-allowed;
}

a.btn-login {
  text-decoration: none;
  text-align: center;
}

.alert {
  border-radius: 10px;
  border: 1px solid var(--hairline);
  font-size: 0.9rem;
  padding: 0.75rem 1rem;
  margin-bottom: 1rem;
}

.alert-danger {
  background: rgba(255, 59, 48, 0.08);
  border-color: rgba(255, 59, 48, 0.2);
  color: var(--red-text);
}

.alert-success {
  background: rgba(52, 199, 89, 0.1);
  border-color: rgba(52, 199, 89, 0.24);
  color: var(--green-text);
}

.text-center { text-align: center; }

.forgot-wrap {
  text-align: center;
  margin-top: 1.1rem;
}

.forgot-link {
  font-size: 0.88rem;
  color: var(--text-secondary);
  font-weight: 500;
  text-decoration: none;
}

.forgot-link:hover {
  color: var(--text-primary);
  text-decoration: underline;
}

.login-trusted-wrap {
  width: 100%;
  flex-shrink: 0;
  background: var(--bg-panel);
  padding-bottom: 1.35rem;
}

.login-trusted-label {
  font-size: 0.8rem;
  line-height: 1.3;
  color: var(--text-tertiary);
  white-space: nowrap;
  flex-shrink: 0;
  margin: 0 0 0.65rem;
  letter-spacing: 0.01em;
}

.login-trusted {
  width: 100%;
  padding-top: 0.85rem;
  border-top: 1px solid var(--hairline);
}

.login-trusted-marquee {
  width: 100%;
  min-width: 0;
  overflow: hidden;
  -webkit-mask-image: linear-gradient(90deg, transparent, #000 5%, #000 95%, transparent);
  mask-image: linear-gradient(90deg, transparent, #000 5%, #000 95%, transparent);
}

.login-trusted-track {
  display: flex;
  width: max-content;
  animation: loginMarquee 42s linear infinite;
}

.login-trusted-track:hover {
  animation-play-state: paused;
}

.login-trusted-row {
  display: flex;
  align-items: center;
  gap: 2.25rem;
  padding-right: 2.25rem;
  flex-shrink: 0;
}

.login-trusted-row img {
  height: 24px;
  width: auto;
  max-width: 110px;
  object-fit: contain;
  filter: grayscale(100%);
  opacity: 0.42;
}

@keyframes loginMarquee {
  from { transform: translateX(0); }
  to { transform: translateX(-50%); }
}

.language-dropdown {
  position: absolute;
  top: 1.25rem;
  right: 1.25rem;
  z-index: 10;
}

.language-dropdown-btn {
  background: var(--bg-panel);
  border: 1px solid var(--hairline);
  border-radius: var(--r-pill);
  width: 44px;
  height: 44px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  font-size: 20px;
  line-height: 1;
  color: var(--text-primary);
  transition: background 0.15s var(--ease), border-color 0.15s var(--ease);
}

.language-dropdown-btn:hover {
  background: #f5f5f7;
  border-color: var(--border);
}

.language-dropdown-menu {
  position: absolute;
  right: 0;
  top: calc(100% + 8px);
  background: var(--bg-panel);
  border: 1px solid var(--hairline);
  border-radius: 12px;
  min-width: 210px;
  padding: 6px;
  box-shadow: 0 24px 64px rgba(0, 0, 0, 0.14);
  display: none;
  z-index: 11;
}

.language-dropdown-menu.show {
  display: block;
}

.language-option {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 9px 10px;
  border-radius: 10px;
  cursor: pointer;
  user-select: none;
}

.language-option:hover {
  background: #f5f5f7;
}

.language-option.active {
  background: var(--accent-soft);
}

.language-option .left {
  display: flex;
  align-items: center;
  gap: 10px;
}

.language-option .flag {
  font-size: 18px;
  width: 22px;
  text-align: center;
}

.language-option .lang-name {
  font-weight: 600;
  color: var(--text-primary);
  font-size: 14px;
}

.language-option .check-icon {
  opacity: 0;
  font-size: 14px;
  color: var(--accent);
}

.language-option.active .check-icon {
  opacity: 1;
}

@media (max-width: 900px) {
  body {
    overflow: auto;
  }

  .login-shell {
    flex-direction: column;
    min-height: 100vh;
  }

  .login-media {
    display: none;
  }

  .login-panel {
    flex: 1 1 auto;
    width: 100%;
    min-height: 100vh;
    padding: 2rem 1.25rem 0;
  }

  .login-trusted-wrap {
    padding-bottom: 1.25rem;
  }

  .login-trusted {
    padding-top: 0.75rem;
  }

  .login-trusted-label {
    margin-bottom: 0.55rem;
  }

  .login-trusted-row {
    gap: 1.5rem;
    padding-right: 1.5rem;
  }

  .login-trusted-row img {
    height: 20px;
    max-width: 92px;
  }
}

@media (max-width: 480px) {
  .login-panel {
    padding: 1.5rem 1rem 0;
  }

  .login-panel-main {
    padding: 0.5rem 0 1.5rem;
  }

  .login-header {
    margin-bottom: 1.5rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .login-trusted-track {
    animation: none;
  }

  .login-trusted-marquee {
    overflow-x: auto;
    -webkit-mask-image: none;
    mask-image: none;
  }
}