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

:root {
  --dev-green: #10b981;
  --dev-green-dark: #059669;
  --dev-green-light: #d1fae5;
  --dev-dark: #0a0f1a;
  --dev-dark-2: #111827;
  --dev-dark-3: #1f2937;
  --form-bg: #ffffff;
  --form-text: #0f172a;
  --form-muted: #64748b;
  --form-border: #e2e8f0;
  --form-input-bg: #f8fafc;
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --shadow: 0 4px 24px rgba(0,0,0,0.08);
  --font: 'Inter', system-ui, sans-serif;
  --mono: 'JetBrains Mono', 'Fira Code', monospace;
}

html { height: 100%; }

body {
  font-family: var(--font);
  min-height: 100vh;
  background: var(--dev-dark);
  color: var(--form-text);
  overflow-x: hidden;
}

.dev-login-layout {
  display: flex;
  min-height: 100vh;
}

.brand-panel {
  flex: 1;
  background: var(--dev-dark);
  color: #fff;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 48px;
  position: relative;
  overflow: hidden;
  max-width: 55%;
}

.brand-bg-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(16,185,129,0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(16,185,129,0.05) 1px, transparent 1px);
  background-size: 40px 40px;
  pointer-events: none;
}

.brand-content {
  position: relative;
  z-index: 1;
  max-width: 560px;
  margin: 0 auto;
}

.brand-logo {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 48px;
}

.logo-icon {
  width: 52px;
  height: 52px;
  border-radius: var(--radius-md);
  background: linear-gradient(135deg, var(--dev-green), var(--dev-green-dark));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  color: #fff;
  flex-shrink: 0;
}

.logo-icon.small {
  width: 40px;
  height: 40px;
  font-size: 18px;
}

.brand-logo h1 {
  font-size: 22px;
  font-weight: 700;
  letter-spacing: -0.5px;
}

.brand-badge {
  display: inline-block;
  font-size: 11px;
  font-weight: 600;
  color: var(--dev-green);
  background: rgba(16,185,129,0.15);
  padding: 2px 10px;
  border-radius: 99px;
  letter-spacing: 0.5px;
  text-transform: uppercase;
  margin-top: 2px;
}

.brand-hero {
  margin-bottom: 36px;
}

.brand-hero h2 {
  font-size: 32px;
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: -0.5px;
  margin-bottom: 12px;
}

.brand-hero p {
  font-size: 15px;
  color: rgba(255,255,255,0.6);
  line-height: 1.6;
}

.code-preview {
  background: var(--dev-dark-2);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: var(--radius-md);
  overflow: hidden;
  margin-bottom: 36px;
}

.code-header {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 12px 16px;
  background: rgba(255,255,255,0.03);
  border-bottom: 1px solid rgba(255,255,255,0.06);
}

.code-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
}

.code-dot.red { background: #ef4444; }
.code-dot.yellow { background: #eab308; }
.code-dot.green { background: #22c55e; }

.code-filename {
  margin-left: 8px;
  font-family: var(--mono);
  font-size: 12px;
  color: rgba(255,255,255,0.4);
}

.code-body {
  padding: 16px 20px;
  font-family: var(--mono);
  font-size: 13px;
  line-height: 1.7;
  color: rgba(255,255,255,0.75);
  overflow-x: auto;
  white-space: pre;
  margin: 0;
}

.code-body .kw { color: #c084fc; }
.code-body .str { color: var(--dev-green); }

.brand-features {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 20px;
  margin-bottom: 36px;
}

.brand-features li {
  display: flex;
  align-items: flex-start;
  gap: 14px;
}

.feat-icon {
  width: 38px;
  height: 38px;
  border-radius: 10px;
  background: rgba(16,185,129,0.12);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--dev-green);
  font-size: 15px;
  flex-shrink: 0;
}

.brand-features strong {
  font-size: 14px;
  font-weight: 600;
  display: block;
  margin-bottom: 2px;
}

.brand-features p {
  font-size: 13px;
  color: rgba(255,255,255,0.45);
  line-height: 1.4;
}

.brand-footer {
  font-size: 12px;
  color: rgba(255,255,255,0.25);
  margin-top: 12px;
}

.form-panel {
  flex: 0 0 45%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--form-bg);
  padding: 48px 40px;
}

.form-container {
  width: 100%;
  max-width: 420px;
}

.back-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--form-muted);
  text-decoration: none;
  margin-bottom: 32px;
  transition: color 0.2s;
}

.back-link:hover { color: var(--dev-green); }

.mobile-brand {
  display: none;
  align-items: center;
  gap: 12px;
  margin-bottom: 28px;
}

.m-brand-name {
  font-size: 17px;
  font-weight: 700;
  color: var(--form-text);
}

.m-brand-name span {
  color: var(--dev-green);
  font-weight: 600;
}

.m-brand-sub {
  font-size: 12px;
  color: var(--form-muted);
}

.form-head {
  margin-bottom: 24px;
}

.form-head h2 {
  font-size: 26px;
  font-weight: 800;
  letter-spacing: -0.5px;
  color: var(--form-text);
  margin-bottom: 6px;
}

.form-head p {
  font-size: 14px;
  color: var(--form-muted);
  line-height: 1.5;
}

.info-box {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  background: var(--dev-green-light);
  border: 1px solid rgba(16,185,129,0.2);
  border-radius: var(--radius-sm);
  padding: 12px 14px;
  margin-bottom: 24px;
  font-size: 13px;
  color: #065f46;
  line-height: 1.5;
}

.info-box i {
  color: var(--dev-green);
  margin-top: 2px;
  flex-shrink: 0;
}

.info-box a {
  color: var(--dev-green-dark);
  font-weight: 600;
  text-decoration: none;
}

.info-box a:hover { text-decoration: underline; }

.f-group {
  margin-bottom: 18px;
}

.f-label {
  display: block;
  font-size: 13px;
  font-weight: 600;
  color: var(--form-text);
  margin-bottom: 6px;
}

.f-wrap {
  display: flex;
  align-items: center;
  background: var(--form-input-bg);
  border: 1.5px solid var(--form-border);
  border-radius: var(--radius-sm);
  transition: border-color 0.2s, box-shadow 0.2s;
}

.f-wrap:focus-within {
  border-color: var(--dev-green);
  box-shadow: 0 0 0 3px rgba(16,185,129,0.12);
}

.f-ico {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  color: var(--form-muted);
  font-size: 14px;
  flex-shrink: 0;
}

.f-wrap input {
  flex: 1;
  border: none;
  background: transparent;
  padding: 12px 12px 12px 0;
  font-size: 14px;
  font-family: var(--font);
  color: var(--form-text);
  outline: none;
}

.f-wrap input::placeholder { color: #94a3b8; }

.f-eye {
  background: none;
  border: none;
  cursor: pointer;
  padding: 0 14px;
  color: var(--form-muted);
  font-size: 14px;
  transition: color 0.2s;
}

.f-eye:hover { color: var(--dev-green); }

.cf-turnstile {
  margin-bottom: 18px;
}

.terms-check {
  margin-bottom: 20px;
}

.cb-label {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  cursor: pointer;
  font-size: 0.85rem;
  color: var(--form-muted);
  line-height: 1.45;
  user-select: none;
}

.cb-label input[type="checkbox"] {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}

.cb-box {
  width: 18px;
  height: 18px;
  min-width: 18px;
  border: 1.5px solid var(--form-border);
  border-radius: 5px;
  background: var(--form-input-bg);
  transition: background 0.18s ease, border-color 0.18s ease;
  position: relative;
  margin-top: 1px;
  flex-shrink: 0;
}

.cb-label:hover .cb-box {
  border-color: var(--dev-green);
}

.cb-label input:checked ~ .cb-box {
  background: var(--dev-green);
  border-color: var(--dev-green);
}

.cb-label input:checked ~ .cb-box::after {
  content: '';
  position: absolute;
  left: 5px;
  top: 1px;
  width: 5px;
  height: 10px;
  border: solid #fff;
  border-width: 0 2px 2px 0;
  transform: rotate(45deg);
}

.cb-label input:focus-visible ~ .cb-box {
  box-shadow: 0 0 0 3px rgba(16,185,129,0.18);
}

.terms-link {
  color: var(--dev-green);
  font-weight: 600;
  text-decoration: none;
  transition: color 0.15s;
}

.terms-link:hover {
  color: var(--dev-green-dark);
  text-decoration: underline;
}

.terms-error {
  display: none;
  font-size: 0.78rem;
  color: #dc2626;
  margin-top: 8px;
  padding-left: 28px;
}

.terms-error.visible { display: block; }

.terms-check.shake {
  animation: shakeTerms 0.38s ease;
}

@keyframes shakeTerms {
  0%, 100% { transform: translateX(0); }
  25% { transform: translateX(-6px); }
  50% { transform: translateX(6px); }
  75% { transform: translateX(-4px); }
}

.btn-login {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 14px;
  border: none;
  border-radius: var(--radius-sm);
  background: linear-gradient(135deg, var(--dev-green), var(--dev-green-dark));
  color: #fff;
  font-size: 15px;
  font-weight: 600;
  font-family: var(--font);
  cursor: pointer;
  transition: transform 0.15s, box-shadow 0.2s, opacity 0.2s;
}

.btn-login:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(16,185,129,0.3);
}

.btn-login:active { transform: translateY(0); }

.btn-login:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  transform: none;
}

.btn-login.disabled-terms {
  opacity: 0.55;
  cursor: not-allowed;
  filter: grayscale(0.3);
}
.btn-login.disabled-terms:hover { transform: none; box-shadow: none; }

.btn-login .spinner {
  width: 18px;
  height: 18px;
  border: 2px solid rgba(255,255,255,0.3);
  border-top-color: #fff;
  border-radius: 50%;
  animation: spin 0.6s linear infinite;
}

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

.form-footer {
  text-align: center;
  margin-top: 28px;
  font-size: 13px;
  color: var(--form-muted);
}

.form-footer a {
  color: var(--dev-green);
  text-decoration: none;
  font-weight: 500;
}

.form-footer a:hover { text-decoration: underline; }

.notification {
  position: fixed;
  top: 20px;
  right: 20px;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 14px 20px;
  border-radius: var(--radius-sm);
  background: #1e293b;
  color: #fff;
  font-size: 14px;
  box-shadow: 0 8px 32px rgba(0,0,0,0.2);
  z-index: 10000;
  transform: translateX(120%);
  transition: transform 0.3s ease;
  max-width: 400px;
}

.notification.show { transform: translateX(0); }
.notification.success { background: var(--dev-green-dark); }
.notification.error { background: #dc2626; }
.notification.warning { background: #d97706; }

@media (max-width: 1200px) {
  .brand-panel { padding: 40px; }
  .brand-hero h2 { font-size: 28px; }
  .brand-features { gap: 16px; margin-bottom: 28px; }
  .code-preview { margin-bottom: 28px; }
}

@media (max-width: 1024px) {
  .brand-panel { max-width: 48%; padding: 32px; }
  .brand-hero { margin-bottom: 24px; }
  .brand-hero h2 { font-size: 24px; }
  .brand-hero p { font-size: 14px; }
  .code-preview { display: none; }
  .brand-features { gap: 14px; }
  .brand-features strong { font-size: 13px; }
  .brand-features p { font-size: 12px; }
  .form-panel { flex: 0 0 52%; padding: 36px 28px; }
}

@media (max-width: 820px) {
  .dev-login-layout { flex-direction: column; min-height: 100vh; }
  .brand-panel { display: none; }
  .mobile-brand { display: flex; }
  .form-panel {
    flex: 1;
    padding: 32px 24px;
    min-height: 100vh;
    align-items: flex-start;
    padding-top: 28px;
  }
  .form-container { max-width: 520px; margin: 0 auto; }
  .back-link { margin-bottom: 20px; }
}

@media (max-width: 560px) {
  .form-panel { padding: 24px 18px; }
  .form-head h2 { font-size: 22px; }
  .form-head p { font-size: 13px; }
  .info-box { padding: 10px 12px; font-size: 12px; }
  .btn-login { padding: 13px; font-size: 14px; }
  .mobile-brand { margin-bottom: 22px; }
  .m-brand-name { font-size: 16px; }
  .m-brand-sub { font-size: 11px; }
  .notification {
    top: auto;
    bottom: 16px;
    left: 16px;
    right: 16px;
    max-width: calc(100vw - 32px);
  }
}

@media (max-width: 380px) {
  .form-panel { padding: 20px 14px; }
  .form-head h2 { font-size: 20px; }
  .f-ico { width: 38px; }
  .f-wrap input { padding: 11px 10px 11px 0; font-size: 13px; }
  .btn-login { padding: 12px; font-size: 13px; }
  .cb-label { font-size: 0.8rem; }
  .logo-icon.small { width: 36px; height: 36px; font-size: 16px; }
}

@media (max-height: 600px) and (orientation: landscape) {
  .dev-login-layout { min-height: auto; }
  .form-panel {
    min-height: auto;
    padding: 24px 20px;
    align-items: flex-start;
  }
  .brand-panel { padding: 28px; }
  .code-preview, .brand-features { display: none; }
  .brand-hero { margin-bottom: 18px; }
}

@media (max-width: 480px) {
  html, body { overflow-x: hidden; }
  .cf-turnstile { overflow: hidden; }
  .cf-turnstile iframe { max-width: 100% !important; }
}