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

:root {
  --ink:        #0e0e0e;
  --paper:      #f5f0e8;
  --cream:      #ede8dc;
  --sand:	#393939;
  --rust:       #c94f2a;
  --rust-light: #e8714e;
  --muted:      #7a7065;
  --line:       #d0c8b8;
}

html, body {
  height: 100%;
  background: var(--sand);
  color: var(--ink);
  font-family: 'DM Mono', monospace;
}

/* Grain overlay */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='300' height='300'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.75' numOctaves='4' stitchTiles='stitch'/%3E%3CfeColorMatrix type='saturate' values='0'/%3E%3C/filter%3E%3Crect width='300' height='300' filter='url(%23noise)' opacity='0.04'/%3E%3C/svg%3E");
  pointer-events: none;
  z-index: 1000;
  opacity: 0.6;
}

/* ── Layout ──────────────────────────────────────── */

.page {
  min-height: 100vh;
  display: grid;
  grid-template-columns: 1fr 1fr;
}

/* ── Left panel ──────────────────────────────────── */

.left {
  background: var(--ink);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: 3rem 3.5rem;
  position: relative;
  overflow: hidden;
  animation: slideInLeft 0.7s cubic-bezier(.16,1,.3,1) both;
}

@keyframes slideInLeft {
  from { opacity: 0; transform: translateX(-30px); }
  to   { opacity: 1; transform: translateX(0); }
}

/* Decorative circles */
.left::after {
  content: '';
  position: absolute;
  width: 520px;
  height: 520px;
  border-radius: 50%;
  border: 1px solid rgba(255,255,255,0.06);
  bottom: -120px;
  right: -160px;
  pointer-events: none;
}

.left::before {
  content: '';
  position: absolute;
  width: 300px;
  height: 300px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(201,79,42,0.18) 0%, transparent 70%);
  top: -60px;
  left: -80px;
  pointer-events: none;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  position: relative;
  z-index: 1;
}

.brand-icon {
  width: 36px;
  height: 36px;
  background: var(--rust);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.brand-icon svg {
  width: 20px;
  height: 20px;
  fill: #fff;
}

.brand-name {
  font-family: 'Playfair Display', serif;
  font-size: 1.35rem;
  color: #fff;
  letter-spacing: -0.01em;
}

.left-body {
  position: relative;
  z-index: 1;
}

.left-tagline {
  font-family: 'Playfair Display', serif;
  font-size: 2.8rem;
  line-height: 1.15;
  color: #fff;
  font-weight: 400;
  margin-bottom: 1.5rem;
}

.left-tagline em {
  color: var(--rust-light);
  font-style: italic;
}

.left-desc {
  font-size: 0.78rem;
  color: rgba(255,255,255,0.45);
  line-height: 1.7;
  max-width: 300px;
  letter-spacing: 0.02em;
}

.left-footer {
  font-size: 0.7rem;
  color: rgba(255,255,255,0.25);
  letter-spacing: 0.05em;
  text-transform: uppercase;
  position: relative;
  z-index: 1;
}

/* ── Right panel ─────────────────────────────────── */

.right {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 3rem 2.5rem;
  animation: fadeUp 0.7s 0.15s cubic-bezier(.16,1,.3,1) both;
}

@keyframes fadeUp {
  from { opacity: 0; transform: translateY(20px); }
  to   { opacity: 1; transform: translateY(0); }
}

.form-card {
  width: 100%;
  max-width: 380px;
}

.form-header {
  margin-bottom: 2.5rem;
}

.form-eyebrow {
  font-size: 0.68rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--rust);
  margin-bottom: 0.6rem;
}

.form-title {
  font-family: 'Playfair Display', serif;
  font-size: 2rem;
  font-weight: 700;
  color: var(--paper);
  letter-spacing: -0.02em;
}

/* ── Form elements ───────────────────────────────── */

.field {
  margin-bottom: 1.4rem;
}

label {
  display: block;
  font-size: 0.68rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 0.5rem;
}

input[type="text"],
input[type="email"],
input[type="password"] {
  width: 100%;
  padding: 0.75rem 1rem;
  border: 1.5px solid var(--line);
  border-radius: 6px;
  background: var(--cream);
  font-family: 'DM Mono', monospace;
  font-size: 0.85rem;
  color: var(--ink);
  transition: border-color 0.2s, box-shadow 0.2s, background 0.2s;
  outline: none;
  -webkit-appearance: none;
}

input:focus {
  border-color: var(--rust);
  background: #fff;
  box-shadow: 0 0 0 3px rgba(201,79,42,0.12);
}

input::placeholder {
  color: #bab3a8;
}

.input-wrap {
  position: relative;
}

.toggle-pw {
  position: absolute;
  right: 0.9rem;
  top: 50%;
  transform: translateY(-50%);
  background: none;
  border: none;
  cursor: pointer;
  color: var(--muted);
  display: flex;
  align-items: center;
  padding: 0;
  transition: color 0.15s;
}

.toggle-pw:hover { color: var(--rust); }

.form-options {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1.8rem;
  margin-top: -0.4rem;
}

.remember {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  cursor: pointer;
  font-size: 0.72rem;
  color: var(--muted);
  letter-spacing: 0.04em;
}

.remember input[type="checkbox"] {
  width: 15px;
  height: 15px;
  accent-color: var(--rust);
  cursor: pointer;
}

.forgot {
  font-size: 0.72rem;
  color: var(--rust);
  text-decoration: none;
  letter-spacing: 0.04em;
  transition: opacity 0.15s;
}

.forgot:hover { opacity: 0.7; }

/* ── Submit button ───────────────────────────────── */

.btn-login {
  width: 100%;
  padding: 0.85rem;
  background: var(--rust);
  color: #fff;
  border: none;
  border-radius: 6px;
  font-family: 'DM Mono', monospace;
  font-size: 0.8rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  cursor: pointer;
  transition: background 0.2s, transform 0.1s, box-shadow 0.2s;
  box-shadow: 0 4px 14px rgba(201,79,42,0.3);
  position: relative;
  overflow: hidden;
}

.btn-login::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(255,255,255,0.1) 0%, transparent 60%);
  pointer-events: none;
}

.btn-login:hover {
  background: var(--rust-light);
  box-shadow: 0 6px 20px rgba(201,79,42,0.4);
  transform: translateY(-1px);
}

.btn-login:active {
  transform: translateY(0);
  box-shadow: 0 2px 8px rgba(201,79,42,0.3);
}

/* Loading state */
.btn-login.loading .btn-text    { opacity: 0; }
.btn-login.loading .btn-spinner { opacity: 1; }

.btn-content {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
}

.btn-spinner {
  position: absolute;
  opacity: 0;
  width: 16px;
  height: 16px;
  border: 2px solid rgba(255,255,255,0.3);
  border-top-color: #fff;
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
  transition: opacity 0.15s;
}

.btn-text { transition: opacity 0.15s; }

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

/* ── Error message ───────────────────────────────── */

.error-msg {
  display: none;
  background: #fff0ed;
  border: 1px solid #f0c4bb;
  border-radius: 6px;
  padding: 0.7rem 1rem;
  font-size: 0.75rem;
  color: #a83222;
  margin-bottom: 1.2rem;
  letter-spacing: 0.02em;
  line-height: 1.5;
}

.error-msg.visible {
  display: block;
  animation: shake 0.35s ease;
}

@keyframes shake {
  0%,100% { transform: translateX(0); }
  20%      { transform: translateX(-6px); }
  40%      { transform: translateX(6px); }
  60%      { transform: translateX(-4px); }
  80%      { transform: translateX(4px); }
}

/* ── Misc ────────────────────────────────────────── */

.divider {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin: 1.6rem 0;
  color: var(--line);
}

.divider span {
  font-size: 0.65rem;
  color: var(--muted);
  letter-spacing: 0.08em;
  white-space: nowrap;
}

.divider::before,
.divider::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--line);
}

.version-tag {
  text-align: center;
  font-size: 0.65rem;
  color: var(--muted);
  letter-spacing: 0.08em;
  margin-top: 2rem;
}

/* ── Responsive ──────────────────────────────────── */

@media (max-width: 680px) {
  .page  { grid-template-columns: 1fr; }
  .left  { display: none; }
  .right { padding: 3rem 1.5rem; }
}