/* ===== Login Page - Dungeon Gate Style ===== */
:root {
  --login-primary: #6366f1;
  --login-primary-dark: #4f46e5;
  --login-primary-glow: rgba(99, 102, 241, 0.4);
  --login-bg: #0a0e1a;
  --login-card: rgba(17, 24, 39, 0.9);
  --login-text: #f8fafc;
  --login-muted: #94a3b8;
  --login-border: rgba(99, 102, 241, 0.2);
}

/* Light Mode */
body.light-mode {
  --login-bg: #f1f5f9;
  --login-card: rgba(255, 255, 255, 0.95);
  --login-text: #0f172a;
  --login-muted: #64748b;
  --login-border: rgba(99, 102, 241, 0.15);
}

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

body {
  font-family: "Cairo", "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
  min-height: 100vh;
  overflow-x: hidden;
}

/* Background */
.login-bg {
  position: fixed;
  inset: 0;
  background: var(--login-bg);
  z-index: -1;
}

.bg-particles {
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(
      circle at 20% 50%,
      var(--login-primary-glow) 0%,
      transparent 50%
    ),
    radial-gradient(
      circle at 80% 20%,
      rgba(16, 185, 129, 0.15) 0%,
      transparent 40%
    ),
    radial-gradient(
      circle at 50% 80%,
      rgba(245, 158, 11, 0.1) 0%,
      transparent 40%
    );
}

.bg-glow {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 600px;
  height: 600px;
  background: radial-gradient(
    circle,
    var(--login-primary-glow) 0%,
    transparent 60%
  );
  opacity: 0.3;
  animation: bgPulse 4s ease-in-out infinite;
}

@keyframes bgPulse {
  0%,
  100% {
    opacity: 0.3;
    transform: translate(-50%, -50%) scale(1);
  }
  50% {
    opacity: 0.5;
    transform: translate(-50%, -50%) scale(1.1);
  }
}

/* Container */
.login-container {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
}

/* Card */
.login-card {
  background: var(--login-card);
  backdrop-filter: blur(20px);
  border: 1px solid var(--login-border);
  border-radius: 24px;
  padding: 44px;
  width: 100%;
  max-width: 440px;
  box-shadow:
    0 20px 60px rgba(0, 0, 0, 0.4),
    0 0 40px var(--login-primary-glow);
  position: relative;
  overflow: hidden;
}

.card-glow {
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(
    circle,
    var(--login-primary-glow) 0%,
    transparent 50%
  );
  opacity: 0.2;
  pointer-events: none;
}

/* Header */
.login-header {
  text-align: center;
  margin-bottom: 36px;
  position: relative;
  z-index: 1;
}

.login-actions {
  display: flex;
  justify-content: center;
  gap: 12px;
  margin-bottom: 24px;
}

.icon-btn {
  background: rgba(99, 102, 241, 0.1);
  border: 1px solid var(--login-border);
  color: var(--login-muted);
  padding: 10px 16px;
  border-radius: 12px;
  cursor: pointer;
  font-size: 14px;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: all 0.3s ease;
  font-family: inherit;
  font-weight: 600;
}

.icon-btn:hover {
  color: var(--login-primary);
  border-color: var(--login-primary);
  background: rgba(99, 102, 241, 0.2);
  box-shadow: 0 0 15px var(--login-primary-glow);
}

/* Logo */
.logo {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 14px;
}

.logo-ring {
  position: relative;
  width: 72px;
  height: 72px;
  border-radius: 50%;
  background: linear-gradient(
    135deg,
    var(--login-primary),
    var(--login-primary-dark)
  );
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 0 30px var(--login-primary-glow);
}

.logo-ring i {
  font-size: 32px;
  color: white;
}

.ring-glow {
  position: absolute;
  inset: -6px;
  border-radius: 50%;
  border: 2px solid transparent;
  border-top-color: var(--login-primary);
  border-right-color: var(--login-primary-dark);
  animation: ringSpin 6s linear infinite;
}

@keyframes ringSpin {
  from {
    transform: rotate(0deg);
  }
  to {
    transform: rotate(360deg);
  }
}

.logo h1 {
  font-size: 30px;
  font-weight: 800;
  color: var(--login-text);
  margin: 0;
}

.logo p {
  color: var(--login-muted);
  font-size: 14px;
  margin: 0;
}

/* Toast */
#toast-container {
  position: fixed;
  top: 20px;
  right: 20px;
  z-index: 10000;
  display: flex;
  flex-direction: column;
  gap: 10px;
  color: var(--login-text);
}

.toast {
  background: var(--login-card);
  backdrop-filter: blur(12px);
  border-right: 3px solid var(--login-primary);
  border-radius: 12px;
  padding: 14px 20px;
  min-width: 280px;
  max-width: 360px;
  box-shadow:
    0 10px 30px rgba(0, 0, 0, 0.3),
    0 0 15px var(--login-primary-glow);
  display: flex;
  align-items: center;
  gap: 12px;
  animation: toastSlide 0.4s ease;
}

.toast.success {
  border-right-color: #10b981;
}
.toast.error {
  border-right-color: #ef4444;
}

.toast i {
  font-size: 18px;
  flex-shrink: 0;
}
.toast.success i {
  color: #10b981;
}
.toast.error i {
  color: #ef4444;
}

@keyframes toastSlide {
  from {
    transform: translateX(100%);
    opacity: 0;
  }
  to {
    transform: translateX(0);
    opacity: 1;
  }
}

/* Form */
.auth-form {
  display: flex;
  flex-direction: column;
  gap: 20px;
  position: relative;
  z-index: 1;
}

.form-group label {
  display: block;
  margin-bottom: 8px;
  color: var(--login-muted);
  font-size: 13px;
  font-weight: 600;
}

.input-wrapper {
  position: relative;
}

.input-icon {
  position: absolute;
  right: 16px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--login-muted);
  font-size: 16px;
  transition: all 0.3s ease;
}

.form-group input {
  width: 100%;
  padding: 14px 50px;
  background: rgba(15, 23, 42, 0.5);
  border: 1px solid var(--login-border);
  border-radius: 12px;
  color: var(--login-text);
  font-size: 15px;
  transition: all 0.3s ease;
  font-family: inherit;
}

body.light-mode .form-group input {
  background: rgba(241, 245, 249, 0.8);
}

.form-group input:focus {
  outline: none;
  border-color: var(--login-primary);
  box-shadow:
    0 0 0 3px var(--login-primary-glow),
    0 0 20px var(--login-primary-glow);
}

.form-group input:focus + .input-icon,
.input-wrapper:focus-within .input-icon {
  color: var(--login-primary);
}

.password-wrapper {
  position: relative;
}

.password-wrapper input {
  padding-left: 44px;
}

.toggle-password {
  position: absolute;
  left: 12px;
  top: 50%;
  transform: translateY(-50%);
  background: none;
  border: none;
  color: var(--login-muted);
  cursor: pointer;
  font-size: 16px;
  padding: 4px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.3s ease;
}

.toggle-password:hover {
  color: var(--login-text);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 24px;
  border-radius: 12px;
  border: none;
  font-size: 15px;
  font-weight: 700;
  cursor: pointer;
  transition: all 0.3s ease;
  font-family: inherit;
}

.btn-glow {
  background: linear-gradient(
    135deg,
    var(--login-primary),
    var(--login-primary-dark)
  );
  color: white;
  box-shadow: 0 4px 20px var(--login-primary-glow);
}

.btn-glow:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px var(--login-primary-glow);
}

.btn-block {
  width: 100%;
}

/* Auth Switch */
.auth-switch {
  text-align: center;
  margin-top: 28px;
  padding-top: 24px;
  border-top: 1px solid var(--login-border);
  position: relative;
  z-index: 1;
}

.auth-switch p {
  color: var(--login-muted);
  font-size: 14px;
  margin: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  flex-wrap: wrap;
}

.text-btn {
  background: none;
  border: none;
  color: var(--login-primary);
  cursor: pointer;
  font-size: 14px;
  font-weight: 700;
  transition: all 0.3s ease;
  padding: 0;
  font-family: inherit;
}

.text-btn:hover {
  color: var(--login-primary-dark);
  text-shadow: 0 0 10px var(--login-primary-glow);
}

/* Loading */
.loading {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 14px;
  padding: 20px;
  color: var(--login-muted);
}

.gate-spinner {
  position: relative;
  width: 40px;
  height: 40px;
}

.spinner-ring {
  position: absolute;
  inset: 0;
  border: 3px solid var(--login-border);
  border-top-color: var(--login-primary);
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

.spinner-core {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 12px;
  height: 12px;
  background: var(--login-primary);
  border-radius: 50%;
  box-shadow: 0 0 10px var(--login-primary-glow);
  animation: corePulse 1s ease-in-out infinite;
}

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

@keyframes corePulse {
  0%,
  100% {
    opacity: 1;
    transform: translate(-50%, -50%) scale(1);
  }
  50% {
    opacity: 0.7;
    transform: translate(-50%, -50%) scale(0.8);
  }
}

.hidden {
  display: none !important;
}

/* Responsive */
@media (max-width: 480px) {
  .login-card {
    padding: 32px 24px;
    border-radius: 20px;
  }

  .logo h1 {
    font-size: 24px;
  }

  .logo-ring {
    width: 60px;
    height: 60px;
  }

  .logo-ring i {
    font-size: 26px;
  }

  .icon-btn {
    padding: 8px 12px;
    font-size: 13px;
  }

  #toast-container {
    right: 10px;
    left: 10px;
    align-items: stretch;
  }

  .toast {
    min-width: unset;
  }
}