:root {
  --brand-start: #2563eb;
  --brand-end: #1d4ed8;
  --brand-soft: #dbeafe;
  --page-bg: #f8fbff;
  --card-bg: #ffffff;
  --text-main: #111827;
  --text-muted: #6b7280;
  --border: #e5e7eb;
  --focus: rgba(37, 99, 235, 0.14);
  --danger-bg: #fef2f2;
  --danger-border: #fecaca;
  --danger-text: #b91c1c;
  --shadow: 0 20px 25px -5px rgba(15, 23, 42, 0.12);
}

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

html,
body {
  min-height: 100%;
}

body {
  margin: 0;
  font-family: "Inter", "Segoe UI", sans-serif;
  background: var(--page-bg);
  color: var(--text-main);
}

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

.brand-section,
.login-section {
  flex: 1 1 50%;
}

.brand-section {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  background: linear-gradient(135deg, var(--brand-start), var(--brand-end));
}

.decor-svg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  opacity: 0.2;
  pointer-events: none;
}

.decor-svg circle,
.decor-svg path {
  fill: rgba(255, 255, 255, 0.18);
}

.decor-svg circle {
  animation: pulse 8s ease-in-out infinite;
}

.decor-svg path {
  animation: float 6s ease-in-out infinite;
}

.brand-content {
  position: relative;
  z-index: 1;
  max-width: 460px;
  padding: 48px;
  color: #fff;
}

.brand-kicker {
  margin: 0 0 16px;
  font-size: 0.9rem;
  font-weight: 700;
  letter-spacing: 0.2em;
  text-transform: uppercase;
}

.brand-title {
  margin: 0 0 16px;
  font-size: clamp(2.2rem, 4vw, 3rem);
  line-height: 1.1;
}

.brand-tagline {
  margin: 0;
  font-size: 1rem;
  line-height: 1.7;
  color: var(--brand-soft);
}

.social-proof {
  margin-top: 40px;
  padding-top: 24px;
  border-top: 1px solid rgba(255, 255, 255, 0.24);
}

.proof-text,
.brand-logos {
  margin: 0;
}

.proof-text {
  font-size: 0.84rem;
  font-weight: 600;
}

.brand-logos {
  margin-top: 8px;
  font-size: 0.78rem;
  letter-spacing: 0.05em;
  color: #bfdbfe;
}

.login-section {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 40px;
}

.login-card {
  width: 100%;
  max-width: 400px;
  padding: 40px;
  border-radius: 20px;
  background: var(--card-bg);
  box-shadow: var(--shadow);
}

.login-logo {
  margin-bottom: 24px;
}

.login-logo img {
  display: block;
  max-width: 160px;
  height: auto;
}

.login-copy h2 {
  margin: 0 0 8px;
  font-size: 1.55rem;
}

.login-copy p {
  margin: 0 0 28px;
  color: var(--text-muted);
  font-size: 0.95rem;
}

.alert-stack {
  display: grid;
  gap: 10px;
  margin-bottom: 20px;
}

.alert-item {
  padding: 11px 14px;
  border: 1px solid var(--danger-border);
  border-radius: 12px;
  background: var(--danger-bg);
  color: var(--danger-text);
  font-size: 0.88rem;
}

.login-form {
  display: grid;
  gap: 18px;
}

.field {
  display: grid;
  gap: 8px;
}

.field span {
  font-size: 0.9rem;
  color: var(--text-main);
  font-weight: 500;
}

.input-wrap {
  position: relative;
}

.input-icon {
  position: absolute;
  top: 50%;
  left: 16px;
  width: 20px;
  height: 20px;
  transform: translateY(-50%);
  stroke: #9ca3af;
  stroke-width: 2;
  transition: stroke 0.2s ease;
}

.input-wrap input {
  width: 100%;
  height: 50px;
  padding: 0 16px 0 48px;
  border: 1.5px solid var(--border);
  border-radius: 12px;
  outline: none;
  font-size: 0.95rem;
  color: var(--text-main);
  background: #fff;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.input-wrap input:focus {
  border-color: var(--brand-start);
  box-shadow: 0 0 0 4px var(--focus);
}

.input-wrap input:focus + .input-icon {
  stroke: var(--brand-start);
}

.input-wrap:focus-within .input-icon {
  stroke: var(--brand-start);
}

.login-button {
  width: 100%;
  height: 50px;
  border: 0;
  border-radius: 12px;
  background: var(--brand-start);
  color: #fff;
  font-size: 0.96rem;
  font-weight: 600;
  cursor: pointer;
  transition: background-color 0.2s ease, transform 0.2s ease;
}

.login-button:hover {
  background: var(--brand-end);
  transform: translateY(-1px);
}

.login-footer {
  margin: 24px 0 0;
  color: #9ca3af;
  font-size: 0.8rem;
  text-align: center;
}

@keyframes pulse {
  0%,
  100% {
    transform: scale(1);
    opacity: 0.5;
  }

  50% {
    transform: scale(1.08);
    opacity: 0.72;
  }
}

@keyframes float {
  0%,
  100% {
    transform: translateY(0);
  }

  50% {
    transform: translateY(-18px);
  }
}

@media (max-width: 900px) {
  .login-layout {
    flex-direction: column;
  }

  .brand-section {
    min-height: 260px;
  }

  .brand-content {
    max-width: none;
    padding: 36px 28px;
  }
}

@media (max-width: 640px) {
  .login-section {
    padding: 24px;
  }

  .login-card {
    padding: 28px 22px;
  }

  .brand-content {
    padding: 32px 22px;
  }
}