/* ============================================================
   VASTRA BY VARUN — LOGIN PAGE CSS
   Premium luxury fashion-brand aesthetic
   ============================================================ */

:root {
  --clr-bg: #0c0c0e;
  --clr-surface: rgba(18, 16, 14, 0.85);
  --clr-surface-hover: rgba(22, 20, 18, 0.92);
  --clr-border: rgba(200, 170, 110, 0.18);
  --clr-border-focus: rgba(200, 170, 110, 0.55);
  --clr-gold: #c8aa6e;
  --clr-gold-light: #e0c88a;
  --clr-gold-dim: rgba(200, 170, 110, 0.25);
  --clr-text-primary: #f0ece4;
  --clr-text-secondary: rgba(240, 236, 228, 0.55);
  --clr-text-muted: rgba(240, 236, 228, 0.35);
  --clr-error: #e07070;
  --clr-error-bg: rgba(224, 112, 112, 0.08);
  --clr-success: #6ec88a;
  --ff-serif: 'Cormorant Garamond', Georgia, serif;
  --ff-sans: 'Inter', system-ui, sans-serif;
  --radius-card: 20px;
  --radius-input: 10px;
  --shadow-card: 0 32px 80px rgba(0, 0, 0, 0.6), 0 0 0 1px rgba(200, 170, 110, 0.1);
  --transition-smooth: all 0.35s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html, body {
  height: 100%;
  width: 100%;
}

body {
  font-family: var(--ff-sans);
  background-color: var(--clr-bg);
  color: var(--clr-text-primary);
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* ── Background Canvas ── */
.bg-canvas {
  position: fixed;
  inset: 0;
  z-index: 0;
  overflow: hidden;
}

.bg-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(90px);
  opacity: 0.35;
  animation: orbFloat 12s ease-in-out infinite alternate;
}

.orb-1 {
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(200, 170, 110, 0.4), transparent 70%);
  top: -120px;
  left: -100px;
  animation-delay: 0s;
}

.orb-2 {
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(160, 120, 60, 0.3), transparent 70%);
  bottom: -100px;
  right: -80px;
  animation-delay: -4s;
}

.orb-3 {
  width: 300px;
  height: 300px;
  background: radial-gradient(circle, rgba(240, 236, 228, 0.06), transparent 70%);
  top: 50%;
  left: 60%;
  transform: translate(-50%, -50%);
  animation-delay: -8s;
}

.bg-grain {
  position: absolute;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)' opacity='0.04'/%3E%3C/svg%3E");
  opacity: 0.5;
  pointer-events: none;
}

@keyframes orbFloat {
  0% { transform: translate(0, 0) scale(1); }
  100% { transform: translate(30px, 20px) scale(1.08); }
}

/* ── Login Wrapper ── */
.login-wrapper {
  position: relative;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  min-height: 100vh;
  padding: 24px;
}

/* ── Login Card ── */
.login-card {
  width: 100%;
  max-width: 440px;
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-card);
  padding: 48px 44px 40px;
  box-shadow: var(--shadow-card);
  backdrop-filter: blur(24px) saturate(1.3);
  -webkit-backdrop-filter: blur(24px) saturate(1.3);
  animation: cardReveal 0.8s cubic-bezier(0.16, 1, 0.3, 1) both;
}

@keyframes cardReveal {
  from {
    opacity: 0;
    transform: translateY(28px) scale(0.97);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

/* ── Brand Logo Area ── */
.brand-logo-area {
  display: flex;
  flex-direction: column;
  align-items: center;
  margin-bottom: 24px;
}

.brand-logo {
  max-width: 180px;
  max-height: 100px;
  width: auto;
  height: auto;
  object-fit: contain;
  filter: brightness(1.05);
  animation: logoFade 1s ease 0.2s both;
}

.brand-text-fallback {
  display: none;
  flex-direction: column;
  align-items: center;
  gap: 2px;
  animation: logoFade 1s ease 0.2s both;
}

.brand-name-main {
  font-family: var(--ff-serif);
  font-size: 2.6rem;
  font-weight: 300;
  letter-spacing: 0.25em;
  color: var(--clr-gold);
  line-height: 1;
  text-transform: uppercase;
}

.brand-name-sub {
  font-family: var(--ff-serif);
  font-size: 1rem;
  font-weight: 300;
  letter-spacing: 0.3em;
  color: var(--clr-text-secondary);
  text-transform: uppercase;
}

@keyframes logoFade {
  from { opacity: 0; transform: translateY(-8px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ── Divider ── */
.card-divider {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 28px;
}

.divider-line {
  flex: 1;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--clr-gold-dim), transparent);
}

.divider-icon {
  font-size: 0.55rem;
  color: var(--clr-gold);
  opacity: 0.6;
}

/* ── Card Heading ── */
.card-heading {
  text-align: center;
  margin-bottom: 32px;
}

.heading-title {
  font-family: var(--ff-serif);
  font-size: 1.9rem;
  font-weight: 400;
  letter-spacing: 0.04em;
  color: var(--clr-text-primary);
  margin-bottom: 6px;
}

.heading-sub {
  font-size: 0.82rem;
  font-weight: 400;
  color: var(--clr-text-secondary);
  letter-spacing: 0.03em;
}

/* ── Form Fields ── */
.login-form {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.field-group {
  display: flex;
  flex-direction: column;
  gap: 7px;
}

.field-label {
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--clr-text-secondary);
  transition: color 0.25s;
}

.field-group:focus-within .field-label {
  color: var(--clr-gold);
}

.field-input-wrap {
  position: relative;
  display: flex;
  align-items: center;
}

.field-icon {
  position: absolute;
  left: 14px;
  width: 16px;
  height: 16px;
  color: var(--clr-text-muted);
  pointer-events: none;
  transition: color 0.25s;
  flex-shrink: 0;
}

.field-input-wrap:focus-within .field-icon {
  color: var(--clr-gold);
}

.field-input {
  width: 100%;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-input);
  padding: 13px 44px 13px 42px;
  font-family: var(--ff-sans);
  font-size: 0.9rem;
  font-weight: 400;
  color: var(--clr-text-primary);
  outline: none;
  transition: var(--transition-smooth);
  letter-spacing: 0.02em;
}

.field-input::placeholder {
  color: var(--clr-text-muted);
  font-size: 0.85rem;
}

.field-input:focus {
  border-color: var(--clr-border-focus);
  background: rgba(200, 170, 110, 0.04);
  box-shadow: 0 0 0 3px rgba(200, 170, 110, 0.1), 0 1px 8px rgba(0,0,0,0.3);
}

.field-input.error {
  border-color: rgba(224, 112, 112, 0.5);
  box-shadow: 0 0 0 3px rgba(224, 112, 112, 0.08);
}

.toggle-password {
  position: absolute;
  right: 14px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
  color: var(--clr-text-muted);
  transition: color 0.25s;
  display: flex;
  align-items: center;
}

.toggle-password:hover {
  color: var(--clr-gold);
}

.toggle-password svg {
  width: 16px;
  height: 16px;
}

/* ── Error Banner ── */
.error-banner {
  display: none;
  align-items: center;
  gap: 10px;
  padding: 12px 16px;
  background: var(--clr-error-bg);
  border: 1px solid rgba(224, 112, 112, 0.2);
  border-radius: 8px;
  animation: slideDown 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

.error-banner.visible {
  display: flex;
}

.error-banner svg {
  width: 16px;
  height: 16px;
  color: var(--clr-error);
  flex-shrink: 0;
}

.error-banner span {
  font-size: 0.82rem;
  color: var(--clr-error);
  line-height: 1.4;
}

@keyframes slideDown {
  from { opacity: 0; transform: translateY(-6px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ── Login Button ── */
.btn-login {
  position: relative;
  width: 100%;
  padding: 15px 24px;
  margin-top: 4px;
  background: linear-gradient(135deg, var(--clr-gold) 0%, #b8943e 100%);
  color: #1a1208;
  border: none;
  border-radius: var(--radius-input);
  font-family: var(--ff-sans);
  font-size: 0.88rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  cursor: pointer;
  overflow: hidden;
  transition: var(--transition-smooth);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
}

.btn-login::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, var(--clr-gold-light) 0%, var(--clr-gold) 100%);
  opacity: 0;
  transition: opacity 0.3s;
}

.btn-login:hover::before {
  opacity: 1;
}

.btn-login:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 32px rgba(200, 170, 110, 0.35);
}

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

.btn-login:disabled {
  opacity: 0.7;
  cursor: not-allowed;
  transform: none;
}

.btn-text, .btn-loader, .btn-arrow {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
}

.btn-loader {
  display: none;
}

.btn-loader.visible {
  display: flex;
}

.btn-arrow svg {
  width: 16px;
  height: 16px;
  transition: transform 0.3s;
}

.btn-login:hover .btn-arrow svg {
  transform: translateX(3px);
}

.spinner {
  width: 18px;
  height: 18px;
  animation: spin 0.8s linear infinite;
  stroke: #1a1208;
}

@keyframes spin {
  from { stroke-dashoffset: 80; }
  to { stroke-dashoffset: -80; }
}

/* ── Card Footer ── */
.card-footer {
  margin-top: 28px;
  text-align: center;
}

.footer-text {
  font-size: 0.72rem;
  color: var(--clr-text-muted);
  letter-spacing: 0.05em;
}

/* ── Responsive ── */
@media (max-width: 480px) {
  .login-card {
    padding: 36px 28px 32px;
  }
  .brand-name-main {
    font-size: 2.1rem;
  }
}