/* fogmail.space — atmospheric / ethereal */

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

:root {
  --void: #0e1118;
  --deep: #141822;
  --surface: #1a1f2e;
  --card: rgba(22, 28, 42, 0.65);
  --card-border: rgba(123, 142, 200, 0.1);
  --mist: #e8edf2;
  --mist-dim: #a0adc0;
  --mist-faint: #6b7a8e;
  --accent: #7b8ec8;
  --accent-glow: rgba(123, 142, 200, 0.15);
  --accent-bright: #94a6d8;
  --error: #c87b7b;
  --frost-bg: rgba(20, 24, 34, 0.55);
  --frost-blur: 24px;
}

html { height: 100%; }

body {
  font-family: 'Bricolage Grotesque', -apple-system, BlinkMacSystemFont, sans-serif;
  color: var(--mist);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  background: var(--void);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

/* ---- fog scene ---- */

.fog-scene {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  overflow: hidden;
}

/* base atmosphere gradient */
.fog-scene::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 120% 80% at 50% 110%, rgba(123, 142, 200, 0.08) 0%, transparent 60%),
    radial-gradient(ellipse 100% 60% at 20% 50%, rgba(100, 120, 180, 0.04) 0%, transparent 50%),
    radial-gradient(ellipse 80% 100% at 80% 20%, rgba(80, 100, 160, 0.03) 0%, transparent 50%),
    linear-gradient(180deg, var(--void) 0%, #111520 40%, #151b2a 70%, var(--surface) 100%);
}

/* fog layers — translucent drifting bands */
.fog-layer {
  position: absolute;
  width: 200%;
  height: 100%;
  opacity: 0;
  animation-timing-function: ease-in-out;
  animation-iteration-count: infinite;
  animation-direction: alternate;
}

.fog-1 {
  background: linear-gradient(
    90deg,
    transparent 0%,
    rgba(123, 142, 200, 0.03) 15%,
    rgba(160, 173, 192, 0.06) 30%,
    rgba(123, 142, 200, 0.04) 50%,
    transparent 65%,
    rgba(140, 155, 190, 0.05) 80%,
    transparent 100%
  );
  top: 20%;
  left: -50%;
  animation: fog-drift-1 25s ease-in-out infinite alternate;
  opacity: 1;
}

.fog-2 {
  background: linear-gradient(
    90deg,
    transparent 0%,
    rgba(160, 173, 192, 0.04) 20%,
    transparent 40%,
    rgba(123, 142, 200, 0.05) 60%,
    rgba(140, 155, 190, 0.03) 75%,
    transparent 100%
  );
  top: 45%;
  left: -30%;
  animation: fog-drift-2 30s ease-in-out infinite alternate;
  opacity: 1;
}

.fog-3 {
  background: linear-gradient(
    90deg,
    rgba(123, 142, 200, 0.02) 0%,
    transparent 25%,
    rgba(160, 173, 192, 0.04) 45%,
    transparent 60%,
    rgba(123, 142, 200, 0.03) 80%,
    transparent 100%
  );
  top: 65%;
  left: -70%;
  animation: fog-drift-3 35s ease-in-out infinite alternate;
  opacity: 1;
}

@keyframes fog-drift-1 {
  0% { transform: translateX(0) translateY(0); }
  100% { transform: translateX(15%) translateY(-8px); }
}

@keyframes fog-drift-2 {
  0% { transform: translateX(0) translateY(0); }
  100% { transform: translateX(-10%) translateY(12px); }
}

@keyframes fog-drift-3 {
  0% { transform: translateX(0) translateY(0); }
  100% { transform: translateX(20%) translateY(-5px); }
}

/* floating particles */
.fog-particles {
  position: absolute;
  inset: 0;
}

.particle {
  position: absolute;
  width: 2px;
  height: 2px;
  border-radius: 50%;
  background: var(--accent);
  opacity: 0;
  animation: particle-float 12s ease-in-out infinite;
}

.p1 { left: 15%; top: 25%; animation-delay: 0s; animation-duration: 14s; }
.p2 { left: 75%; top: 20%; animation-delay: 2s; animation-duration: 16s; }
.p3 { left: 40%; top: 70%; animation-delay: 4s; animation-duration: 12s; }
.p4 { left: 85%; top: 55%; animation-delay: 6s; animation-duration: 18s; }
.p5 { left: 25%; top: 80%; animation-delay: 1s; animation-duration: 15s; }
.p6 { left: 60%; top: 35%; animation-delay: 3s; animation-duration: 13s; }
.p7 { left: 10%; top: 50%; animation-delay: 5s; animation-duration: 17s; }
.p8 { left: 50%; top: 85%; animation-delay: 7s; animation-duration: 14s; }

@keyframes particle-float {
  0%, 100% {
    opacity: 0;
    transform: translateY(0) scale(1);
  }
  20% {
    opacity: 0.4;
  }
  50% {
    opacity: 0.2;
    transform: translateY(-30px) scale(1.5);
  }
  80% {
    opacity: 0.35;
  }
}

/* ---- layout ---- */

main {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 3rem 1.5rem;
  position: relative;
  z-index: 1;
}

.login-container {
  width: 100%;
  max-width: 400px;
  animation: emerge 1.2s ease-out;
}

@keyframes emerge {
  0% {
    opacity: 0;
    transform: translateY(16px);
    filter: blur(4px);
  }
  100% {
    opacity: 1;
    transform: translateY(0);
    filter: blur(0);
  }
}

/* ---- brand ---- */

.brand {
  text-align: center;
  margin-bottom: 2.5rem;
  animation: emerge 1s ease-out;
}

.brand-mark {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  margin-bottom: 12px;
}

.brand-icon {
  color: var(--accent);
  opacity: 0.7;
}

.brand-name {
  font-size: 2rem;
  font-weight: 300;
  letter-spacing: 0.06em;
  color: var(--mist);
  font-family: 'Bricolage Grotesque', sans-serif;
}

.tagline {
  font-family: 'Crimson Pro', serif;
  font-size: 1.05rem;
  font-weight: 300;
  font-style: italic;
  color: var(--mist-faint);
  letter-spacing: 0.02em;
}

/* ---- login card (frosted glass) ---- */

.login-card {
  background: var(--card);
  border: 1px solid var(--card-border);
  border-radius: 16px;
  padding: 2.25rem 2rem;
  backdrop-filter: blur(var(--frost-blur));
  -webkit-backdrop-filter: blur(var(--frost-blur));
  box-shadow:
    0 4px 24px rgba(0, 0, 0, 0.3),
    0 0 80px rgba(123, 142, 200, 0.04),
    inset 0 1px 0 rgba(255, 255, 255, 0.03);
  position: relative;
  overflow: hidden;
  animation: emerge 1.4s ease-out;
}

/* subtle frost shimmer on top edge */
.login-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 10%;
  right: 10%;
  height: 1px;
  background: linear-gradient(
    90deg,
    transparent,
    rgba(123, 142, 200, 0.2),
    rgba(232, 237, 242, 0.1),
    rgba(123, 142, 200, 0.2),
    transparent
  );
}

.card-header {
  margin-bottom: 1.75rem;
}

.card-header h1 {
  font-family: 'Bricolage Grotesque', sans-serif;
  font-size: 1.35rem;
  font-weight: 500;
  color: var(--mist);
  letter-spacing: -0.01em;
  margin-bottom: 4px;
}

.card-header p {
  font-family: 'Crimson Pro', serif;
  font-size: 0.9rem;
  font-weight: 400;
  color: var(--mist-faint);
}

/* ---- form ---- */

.form-group {
  margin-bottom: 1.25rem;
}

.form-group label {
  display: block;
  font-size: 0.78rem;
  font-weight: 500;
  color: var(--mist-dim);
  letter-spacing: 0.04em;
  text-transform: uppercase;
  margin-bottom: 8px;
}

.form-group input {
  width: 100%;
  padding: 12px 16px;
  font-family: 'Bricolage Grotesque', sans-serif;
  font-size: 0.92rem;
  font-weight: 400;
  color: var(--mist);
  background: rgba(14, 17, 24, 0.6);
  border: 1px solid rgba(123, 142, 200, 0.12);
  border-radius: 10px;
  transition: border-color 0.25s, box-shadow 0.25s, background 0.25s;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

.form-group input::placeholder {
  color: var(--mist-faint);
  opacity: 0.5;
}

.form-group input:focus {
  outline: none;
  border-color: rgba(123, 142, 200, 0.35);
  background: rgba(14, 17, 24, 0.8);
  box-shadow: 0 0 0 3px var(--accent-glow), 0 0 20px rgba(123, 142, 200, 0.06);
}

/* ---- error ---- */

.error-message {
  font-family: 'Crimson Pro', serif;
  font-size: 0.88rem;
  color: var(--error);
  min-height: 1.5rem;
  margin-bottom: 0.25rem;
  opacity: 0;
  transform: translateY(-4px);
  transition: opacity 0.3s, transform 0.3s;
}

.error-message.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ---- button ---- */

.btn-signin {
  width: 100%;
  padding: 13px 24px;
  font-family: 'Bricolage Grotesque', sans-serif;
  font-size: 0.92rem;
  font-weight: 500;
  letter-spacing: 0.02em;
  color: var(--mist);
  background: linear-gradient(135deg, rgba(123, 142, 200, 0.2) 0%, rgba(123, 142, 200, 0.12) 100%);
  border: 1px solid rgba(123, 142, 200, 0.25);
  border-radius: 10px;
  cursor: pointer;
  transition: all 0.3s;
  position: relative;
  overflow: hidden;
}

.btn-signin::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, transparent 0%, rgba(123, 142, 200, 0.08) 100%);
  opacity: 0;
  transition: opacity 0.3s;
}

.btn-signin:hover {
  border-color: rgba(123, 142, 200, 0.4);
  background: linear-gradient(135deg, rgba(123, 142, 200, 0.28) 0%, rgba(123, 142, 200, 0.18) 100%);
  box-shadow: 0 0 24px rgba(123, 142, 200, 0.1);
  color: #fff;
}

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

.btn-signin:active {
  transform: scale(0.99);
  background: linear-gradient(135deg, rgba(123, 142, 200, 0.15) 0%, rgba(123, 142, 200, 0.1) 100%);
}

/* ---- forgot link ---- */

.forgot-link {
  display: block;
  text-align: center;
  margin-top: 1.25rem;
  font-family: 'Crimson Pro', serif;
  font-size: 0.88rem;
  color: var(--mist-faint);
  text-decoration: none;
  transition: color 0.25s;
}

.forgot-link:hover {
  color: var(--accent-bright);
}

/* ---- privacy badge ---- */

.privacy-badge {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  margin-top: 2rem;
  padding: 12px 20px;
  border-radius: 100px;
  background: rgba(123, 142, 200, 0.04);
  border: 1px solid rgba(123, 142, 200, 0.08);
  animation: emerge 1.6s ease-out;
}

.privacy-badge svg {
  flex-shrink: 0;
  color: var(--accent);
  opacity: 0.5;
}

.privacy-badge span {
  font-family: 'Crimson Pro', serif;
  font-size: 0.82rem;
  font-weight: 400;
  color: var(--mist-faint);
  letter-spacing: 0.01em;
}

/* ---- footer ---- */

footer {
  position: relative;
  z-index: 1;
  text-align: center;
  padding: 2rem 1.5rem;
  font-size: 0.78rem;
  color: rgba(107, 122, 142, 0.5);
  animation: emerge 1.8s ease-out;
}

footer p {
  margin-bottom: 8px;
}

footer nav {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 20px;
}

footer nav a {
  color: rgba(107, 122, 142, 0.4);
  text-decoration: none;
  transition: color 0.25s;
  letter-spacing: 0.03em;
}

footer nav a:hover {
  color: var(--mist-faint);
}

/* ---- responsive ---- */

@media (max-width: 480px) {
  main {
    align-items: flex-start;
    padding-top: 4rem;
    padding-left: 1rem;
    padding-right: 1rem;
  }

  .brand-name {
    font-size: 1.65rem;
  }

  .tagline {
    font-size: 0.95rem;
  }

  .login-card {
    padding: 2rem 1.5rem;
    border-radius: 14px;
  }

  .card-header h1 {
    font-size: 1.2rem;
  }

  .privacy-badge {
    flex-direction: column;
    gap: 6px;
    text-align: center;
    padding: 14px 16px;
    border-radius: 12px;
  }

  .fog-layer {
    width: 300%;
  }
}

@media (max-width: 360px) {
  .login-card {
    padding: 1.75rem 1.25rem;
  }

  .brand {
    margin-bottom: 2rem;
  }
}

/* reduced motion */
@media (prefers-reduced-motion: reduce) {
  .fog-layer,
  .particle {
    animation: none;
    opacity: 0.5;
  }

  .login-container,
  .brand,
  .login-card,
  .privacy-badge,
  footer {
    animation: none;
  }

  .error-message {
    transition: none;
  }
}