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

:root {
  --accent: #3b82f6;
  --accent2: #6366f1;
  --gradient: linear-gradient(135deg, #3b82f6 0%, #6366f1 50%, #06b6d4 100%);
  --bg: #070b14;
  --card-bg: rgba(15, 24, 42, 0.6);
  --card-border: rgba(255, 255, 255, 0.07);
  --text: #e8edf5;
  --text2: rgba(232, 237, 245, 0.5);
  --input-bg: rgba(255, 255, 255, 0.03);
  --input-border: rgba(255, 255, 255, 0.1);
  --input-focus: rgba(59, 130, 246, 0.25);
  --error-bg: rgba(239, 68, 68, 0.12);
  --error-border: rgba(239, 68, 68, 0.25);
  --error-text: #ef4444;
  --shadow: 0 8px 32px rgba(0, 0, 0, 0.4), 0 2px 8px rgba(0, 0, 0, 0.2);
  --transition: cubic-bezier(0.16, 1, 0.3, 1);
}

body {
  font-family: 'Inter', -apple-system, sans-serif;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg);
  color: var(--text);
  overflow: hidden;
  position: relative;
}

body::before {
  content: '';
  position: fixed;
  inset: 0;
  background:
    radial-gradient(ellipse at 20% 50%, rgba(59, 130, 246, 0.06) 0%, transparent 60%),
    radial-gradient(ellipse at 80% 20%, rgba(99, 102, 241, 0.04) 0%, transparent 50%),
    radial-gradient(ellipse at 50% 80%, rgba(6, 182, 212, 0.03) 0%, transparent 50%);
  pointer-events: none;
  z-index: 0;
}

.container {
  position: relative;
  z-index: 10;
  width: 100%;
  max-width: 420px;
  padding: 16px;
}

.login-card {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: 20px;
  padding: 36px;
  backdrop-filter: blur(24px) saturate(1.6);
  -webkit-backdrop-filter: blur(24px) saturate(1.6);
  box-shadow: var(--shadow);
  animation: cardEnter 0.6s var(--transition) forwards;
  position: relative;
  overflow: hidden;
}

.login-card::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: inherit;
  padding: 1px;
  background: linear-gradient(135deg, rgba(59, 130, 246, 0.15), rgba(99, 102, 241, 0.08), transparent 60%);
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  pointer-events: none;
}

@keyframes cardEnter {
  from { opacity: 0; transform: translateY(20px) scale(0.97); }
  to { opacity: 1; transform: translateY(0) scale(1); }
}

.card-header {
  text-align: center;
  margin-bottom: 28px;
}

.brand-icon {
  width: 60px;
  height: 60px;
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 14px;
  font-size: 24px;
  color: var(--accent);
  background: rgba(59, 130, 246, 0.1);
  border: 1px solid rgba(59, 130, 246, 0.15);
  transition: transform 0.3s var(--transition);
}

.login-card:hover .brand-icon {
  transform: scale(1.05) rotate(-3deg);
}

.card-header h1 {
  font-size: 20px;
  font-weight: 700;
  letter-spacing: -0.3px;
  margin-bottom: 4px;
  background: linear-gradient(135deg, var(--text), var(--accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.card-header p {
  font-size: 13px;
  color: var(--text2);
  font-weight: 400;
}

.login-form {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.input-group {
  position: relative;
}

.input-icon {
  position: absolute;
  left: 14px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text2);
  font-size: 15px;
  transition: color 0.3s;
  z-index: 1;
}

.input-group input:focus ~ .input-icon {
  color: var(--accent);
}

.input-group input {
  width: 100%;
  padding: 14px 14px 14px 46px;
  background: var(--input-bg);
  border: 1.5px solid var(--input-border);
  border-radius: 12px;
  color: var(--text);
  font-size: 14px;
  font-family: inherit;
  outline: none;
  transition: all 0.3s ease;
}

.input-group input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 4px var(--input-focus);
  background: rgba(255, 255, 255, 0.05);
}

.input-group input::placeholder {
  color: var(--text2);
  font-weight: 400;
}

.toggle-pw {
  position: absolute;
  right: 14px;
  top: 50%;
  transform: translateY(-50%);
  background: none;
  border: none;
  color: var(--text2);
  cursor: pointer;
  font-size: 15px;
  transition: color 0.3s;
  z-index: 1;
  padding: 4px;
}

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

.form-options {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 13px;
}

.remember-me {
  display: flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  color: var(--text2);
  user-select: none;
}

.remember-me input {
  display: none;
}

.checkmark {
  width: 18px;
  height: 18px;
  border: 2px solid var(--input-border);
  border-radius: 5px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.3s ease;
  flex-shrink: 0;
}

.remember-me:hover .checkmark {
  border-color: var(--accent);
}

.remember-me input:checked ~ .checkmark {
  background: var(--accent);
  border-color: var(--accent);
}

.remember-me input:checked ~ .checkmark::after {
  content: '\f00c';
  font-family: 'Font Awesome 6 Free';
  font-weight: 900;
  font-size: 10px;
  color: #fff;
}

.forgot-link {
  color: var(--accent);
  text-decoration: none;
  font-weight: 500;
  font-size: 13px;
  transition: all 0.3s;
}

.forgot-link:hover {
  opacity: 0.8;
  text-decoration: underline;
}

.login-btn {
  position: relative;
  padding: 14px;
  border: none;
  border-radius: 12px;
  font-size: 15px;
  font-weight: 600;
  font-family: inherit;
  color: #fff;
  cursor: pointer;
  transition: all 0.3s var(--transition);
  overflow: hidden;
  background: var(--gradient);
  background-size: 200% 200%;
  background-position: 0% 50%;
  box-shadow: 0 4px 16px rgba(59, 130, 246, 0.3);
}

.login-btn::after {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(255, 255, 255, 0.1);
  opacity: 0;
  transition: opacity 0.3s ease;
}

.login-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 28px rgba(59, 130, 246, 0.4);
  background-position: 100% 50%;
}

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

.login-btn:active {
  transform: translateY(0) scale(0.98);
}

.login-btn.loading {
  pointer-events: none;
}

.login-btn .btn-loader {
  display: none;
}

.login-btn.loading .btn-text {
  visibility: hidden;
}

.login-btn.loading .btn-loader {
  display: inline;
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
}

.error-message {
  display: none;
  align-items: center;
  gap: 8px;
  padding: 10px 14px;
  background: var(--error-bg);
  border: 1px solid var(--error-border);
  border-radius: 10px;
  color: var(--error-text);
  font-size: 13px;
  animation: shake 0.4s ease-in-out;
}

.error-message.show {
  display: flex;
}

@keyframes shake {
  0%, 100% { transform: translateX(0); }
  20% { transform: translateX(-5px); }
  40% { transform: translateX(5px); }
  60% { transform: translateX(-3px); }
  80% { transform: translateX(3px); }
}

.card-footer {
  text-align: center;
  margin-top: 22px;
  padding-top: 18px;
  border-top: 1px solid var(--input-border);
}

.card-footer p {
  font-size: 11px;
  color: var(--text2);
}

.card-footer a {
  transition: color 0.3s;
}

.card-footer a:hover {
  color: var(--accent);
}

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

.shape {
  position: absolute;
  border-radius: 50%;
  filter: blur(100px);
  opacity: 0.12;
}

.shape-1 {
  width: 500px;
  height: 500px;
  background: var(--accent);
  top: -200px;
  right: -150px;
  animation: floatA 25s ease-in-out infinite;
}

.shape-2 {
  width: 400px;
  height: 400px;
  background: var(--accent2);
  bottom: -120px;
  left: -120px;
  animation: floatB 30s ease-in-out infinite;
}

.shape-3 {
  width: 300px;
  height: 300px;
  background: #06b6d4;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  animation: floatC 20s ease-in-out infinite;
}

@keyframes floatA {
  0%, 100% { transform: translate(0, 0) rotate(0deg); }
  33% { transform: translate(-60px, 40px) rotate(5deg); }
  66% { transform: translate(30px, -20px) rotate(-3deg); }
}

@keyframes floatB {
  0%, 100% { transform: translate(0, 0) rotate(0deg); }
  33% { transform: translate(50px, -60px) rotate(-5deg); }
  66% { transform: translate(-20px, 30px) rotate(3deg); }
}

@keyframes floatC {
  0%, 100% { transform: translate(-50%, -50%) scale(1) rotate(0deg); }
  33% { transform: translate(-50%, -50%) scale(1.2) rotate(3deg); }
  66% { transform: translate(-50%, -50%) scale(0.9) rotate(-3deg); }
}

@media (max-width: 480px) {
  .login-card {
    padding: 24px 20px;
    border-radius: 16px;
  }

  .form-options {
    flex-direction: column;
    gap: 10px;
    align-items: flex-start;
  }

  .brand-icon {
    width: 52px;
    height: 52px;
    font-size: 20px;
  }

  .card-header h1 {
    font-size: 18px;
  }

  .login-btn {
    padding: 12px;
    font-size: 14px;
  }
}