/* Grappes — shared auth styles (sign-in / sign-up / forgot-password / reset-password) */
:root {
  --g-bg: #0a0a0a;
  --g-bg-card: rgba(255, 255, 255, 0.04);
  --g-bg-input: rgba(255, 255, 255, 0.06);
  --g-fg: #ffffff;
  --g-muted: #9a9a9a;
  --g-accent: #9BD4D7;
  --g-accent-dark: #7ABEC1;
  --g-border: rgba(255, 255, 255, 0.1);
  --g-border-strong: rgba(255, 255, 255, 0.18);
  --g-error-bg: rgba(229, 62, 62, 0.08);
  --g-error-border: rgba(229, 62, 62, 0.28);
  --g-error-fg: #ff7b7b;
  --f-body: 'Inter', -apple-system, BlinkMacSystemFont, system-ui, sans-serif;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html, body { height: 100%; }
body {
  background: var(--g-bg);
  color: var(--g-fg);
  font-family: var(--f-body);
  -webkit-font-smoothing: antialiased;
  line-height: 1.55;
}

/* Header */
.auth-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  padding: 20px 0;
}
.auth-container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 40px;
}
.auth-header .auth-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.auth-logo img { height: 44px; width: auto; display: block; }
.auth-header-btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 12px 22px;
  background: var(--g-fg);
  color: var(--g-bg);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: -0.01em;
  text-decoration: none;
  border-radius: 999px;
  transition: transform 0.2s, box-shadow 0.2s, background 0.2s;
}
.auth-header-btn:hover {
  transform: translateY(-1px);
  background: var(--g-accent);
  box-shadow: 0 8px 24px rgba(155, 212, 215, 0.2);
}

/* Main layout */
.auth-main {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 120px 0 60px;
}
.auth-grid {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 80px;
  align-items: center;
  width: 100%;
}
@media (max-width: 991px) {
  .auth-grid { grid-template-columns: 1fr; gap: 48px; }
  .auth-brand { text-align: center; }
}
@media (max-width: 600px) {
  .auth-container { padding: 0 20px; }
  .auth-brand { display: none; }
  .auth-main { padding-top: 100px; }
}

/* Left branding */
.auth-title {
  font-family: var(--f-body);
  font-size: clamp(2.4rem, 5vw, 4.2rem);
  font-weight: 800;
  line-height: 1.02;
  letter-spacing: -0.035em;
  color: var(--g-fg);
  margin-bottom: 18px;
}
.auth-subtitle {
  font-size: 18px;
  line-height: 1.6;
  color: var(--g-muted);
  max-width: 480px;
}

/* Form card */
.auth-form-wrap {
  max-width: 480px;
  width: 100%;
  justify-self: end;
}
@media (max-width: 991px) {
  .auth-form-wrap { justify-self: center; }
}
.auth-form-card {
  position: relative;
  padding: 44px 38px;
  border-radius: 16px;
  background: var(--g-bg-card);
  border: 1px solid var(--g-border);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
}
@media (max-width: 600px) {
  .auth-form-card { padding: 36px 22px; }
}

.auth-form-title {
  font-size: 28px;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--g-fg);
  margin-bottom: 6px;
  text-align: center;
}
.auth-form-sub {
  font-size: 14px;
  color: var(--g-muted);
  text-align: center;
  margin-bottom: 24px;
}

/* Google button */
.auth-google-btn {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  height: 52px;
  background: transparent;
  border: 1px solid var(--g-border-strong);
  border-radius: 10px;
  color: var(--g-fg);
  font-family: inherit;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.2s, border-color 0.2s;
}
.auth-google-btn:hover {
  background: rgba(255, 255, 255, 0.04);
  border-color: rgba(255, 255, 255, 0.28);
}

/* Divider */
.auth-divider {
  display: flex;
  align-items: center;
  gap: 14px;
  margin: 22px 0;
}
.auth-divider::before,
.auth-divider::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--g-border);
}
.auth-divider span {
  font-size: 11px;
  color: var(--g-muted);
  text-transform: uppercase;
  letter-spacing: 0.14em;
}

/* Inputs */
.auth-field { margin-bottom: 14px; }
.auth-input-wrap { position: relative; }
.auth-input-icon {
  position: absolute;
  left: 18px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--g-muted);
  pointer-events: none;
}
.auth-input-wrap input {
  width: 100%;
  height: 52px;
  padding: 10px 18px 10px 46px;
  background: var(--g-bg-input);
  border: 1px solid var(--g-border);
  border-radius: 10px;
  color: var(--g-fg);
  font-family: inherit;
  font-size: 15px;
  font-weight: 400;
  letter-spacing: -0.005em;
  outline: none;
  transition: border-color 0.2s, box-shadow 0.2s, background 0.2s;
}
.auth-input-wrap input::placeholder { color: var(--g-muted); }
.auth-input-wrap input:focus {
  border-color: var(--g-accent);
  background: rgba(155, 212, 215, 0.04);
  box-shadow: 0 0 0 3px rgba(155, 212, 215, 0.12);
}

/* Submit */
.auth-submit-btn {
  width: 100%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  height: 54px;
  margin-top: 8px;
  background: var(--g-fg);
  color: var(--g-bg);
  font-family: inherit;
  font-size: 15px;
  font-weight: 700;
  letter-spacing: -0.01em;
  border: none;
  border-radius: 999px;
  cursor: pointer;
  transition: transform 0.2s, background 0.2s, box-shadow 0.2s;
}
.auth-submit-btn:hover {
  background: var(--g-accent);
  transform: translateY(-1px);
  box-shadow: 0 8px 24px rgba(155, 212, 215, 0.22);
}

/* Error */
.auth-error {
  background: var(--g-error-bg);
  border: 1px solid var(--g-error-border);
  color: var(--g-error-fg);
  font-size: 13px;
  padding: 11px 14px;
  border-radius: 8px;
  margin-bottom: 14px;
  line-height: 1.5;
}
.auth-success {
  background: rgba(155, 212, 215, 0.08);
  border: 1px solid rgba(155, 212, 215, 0.28);
  color: var(--g-accent);
  font-size: 13px;
  padding: 11px 14px;
  border-radius: 8px;
  margin-bottom: 14px;
  line-height: 1.5;
}

/* Footer link */
.auth-footer-link {
  text-align: center;
  margin-top: 22px;
  font-size: 14px;
  color: var(--g-muted);
}
.auth-footer-link a {
  color: var(--g-accent);
  font-weight: 600;
  text-decoration: none;
}
.auth-footer-link a:hover { text-decoration: underline; }