:root {

  --gradient-start: #3b82f6;
  --gradient-end: #0ea5e9;
  --bg-primary: #e8f4fd;
  --bg-secondary: #f5f8fb;
  --text-primary: #1e293b;
  --text-secondary: #475569;
  --text-muted: #94a3b8;
  --text-light: #ffffff;

  --accent-blue: var(--color-primary);
  --accent-blue-dark: var(--color-primary-dark);

  --shadow-soft: 0 1px 2px rgba(59, 130, 246, 0.05);
  --shadow-md: 0 2px 8px rgba(59, 130, 246, 0.08);
  --shadow-lg: 0 4px 16px rgba(59, 130, 246, 0.12);
  --shadow-xl: 0 12px 32px rgba(59, 130, 246, 0.15);

  --radius-sm: 0.4rem;
  --radius-lg: 1rem;
  --radius-xl: 1.4rem;

  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-fast: all 0.15s ease-out;

  --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Roboto", "Oxygen", "Ubuntu", "Cantarell", "Fira Sans", "Droid Sans", "Helvetica Neue", sans-serif;

  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 0.8rem;
  --space-lg: 1.2rem;
  --space-xl: 1.6rem;
  --space-2xl: 2.4rem;
  --space-3xl: 3.2rem;
}

[data-theme="dark"] {
  --gradient-start: #0f172a;
  --gradient-end: #1e1e2e;
  --bg-primary: #0f172a;
  --bg-secondary: #1e1e2e;
  --text-primary: #f0f0f0;
  --text-secondary: #b0b0b0;
  --text-muted: #808080;
  --accent-blue: var(--color-primary-light);
  --accent-blue-dark: var(--color-primary);
}

[data-theme="light"] {
  --gradient-start: #3b82f6;
  --gradient-end: #0ea5e9;
  --bg-primary: #e8f4fd;
  --bg-secondary: #f5f8fb;
  --text-primary: #1e293b;
  --text-secondary: #475569;
  --text-muted: #94a3b8;
  --text-light: #ffffff;
  --accent-blue: var(--color-primary);
  --accent-blue-dark: var(--color-primary-dark);
}

* {
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  box-sizing: border-box;
}

html {
  height: 100%;
  width: 100%;
  margin: 0;
  padding: 0;
  background: linear-gradient(135deg, var(--gradient-start) 0%, var(--gradient-end) 100%);
}

body {
  margin: 0;
  padding: 0;
  font-family: var(--font-family);
  color: var(--text-primary);
  line-height: 1.6;
}

.page-wrapper {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  height: 100vh;
  width: 100vw;
  position: fixed;
  top: 0;
  left: 0;
  padding: var(--space-lg);
  overflow: hidden;
  background: linear-gradient(135deg, var(--gradient-start) 0%, var(--gradient-end) 100%);
}

.login-container {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  height: 100%;
  position: relative;
}

.login-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  width: 100%;
  max-width: 480px;
  height: auto;
  padding: 0;
  background: none;
  border: none;
  box-shadow: none;
  gap: var(--space-xl);
}

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

.login-header {
  text-align: center;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-md);
  animation: fadeInUp 0.5s cubic-bezier(0.34, 1.56, 0.64, 1) 0.1s both;
  width: 100%;
}

.login-logo {
  height: 90px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-sm);
}

.login-logo a {
  display: flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
  transition: var(--transition);
}

.login-logo img {
  width: 90px;
  height: 90px;
  object-fit: contain;
  filter: drop-shadow(0 4px 12px rgba(0, 0, 0, 0.15));
  transition: var(--transition);
}

.login-logo a:hover img {
  transform: scale(1.1) rotateZ(5deg);
  filter: drop-shadow(0 8px 20px rgba(0, 0, 0, 0.2));
}

.login-title {
  font-size: 2.5rem;
  font-weight: 700;
  margin: 0;
  color: var(--white);
  letter-spacing: -0.8px;
  line-height: 1.1;
  text-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.login-subtitle {
  font-size: 1rem;
  color: rgba(255, 255, 255, 0.85);
  margin: 0;
  font-weight: 400;
  letter-spacing: 0.3px;
}

.login-form-area {
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
  width: 100%;
  padding: var(--space-2xl) var(--space-xl);
  background: rgba(255, 255, 255, 0.08);
  backdrop-filter: blur(25px);
  border-radius: var(--radius-xl);
  border: 1.5px solid rgba(255, 255, 255, 0.15);
  box-shadow: var(--shadow-xl);
  animation: fadeInUp 0.5s cubic-bezier(0.34, 1.56, 0.64, 1) 0.2s both;
}

.login-form-area > p {
  color: rgba(255, 255, 255, 0.95);
  font-size: 0.95rem;
  text-align: center;
  margin: 0 0 var(--space-md) 0;
  font-weight: 600;
  line-height: 1.6;
  letter-spacing: 0.2px;
  text-shadow: 0 1px 3px rgba(0, 0, 0, 0.2);
}

form {
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
  width: 100%;
}

.login-form-area .form-group {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
  width: 100%;
}

.login-form-area .form-label {
  font-size: 0.9rem;
  font-weight: 700;
  color: white;
  display: block;
  letter-spacing: 0.3px;
  text-shadow: 0 1px 3px rgba(0, 0, 0, 0.2);
}

.login-form-area .form-control {
  padding: 1.1rem 1.3rem;
  border: 2px solid rgba(255, 255, 255, 0.3);
  border-radius: var(--radius-lg);
  width: 100%;
  background-color: rgba(255, 255, 255, 0.98);
  color: var(--text-primary-light);
  font-size: 0.95rem;
  font-family: var(--font-family);
  transition: var(--transition-fast);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
  font-weight: 500;
}

.login-form-area .form-control::placeholder {
  color: var(--text-muted-light);
  font-weight: 400;
}

.login-form-area .form-control:hover:not(:focus) {
  background-color: var(--white);
  border-color: rgba(var(--primary-rgb), 0.5);
  box-shadow: 0 6px 16px rgba(var(--primary-rgb), 0.15);
  transform: translateY(-2px);
}

.login-form-area .form-control:focus {
  outline: none;
  border-color: var(--accent-blue);
  background-color: var(--white);
  box-shadow: 0 0 0 3px rgba(var(--primary-rgb), 0.2), 0 6px 20px rgba(var(--primary-rgb), 0.2);
  transform: translateY(-2px);
}

.login-form-area .form-check {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  margin: var(--space-sm) 0;
  width: 100%;
}

.login-form-area .form-check-input {
  width: 20px;
  height: 20px;
  cursor: pointer;
  flex-shrink: 0;
  appearance: none;
  border: 2px solid rgba(255, 255, 255, 0.3);
  border-radius: 0.4rem;
  background-color: rgba(255, 255, 255, 0.85);
  transition: var(--transition-fast);
  position: relative;
}

.login-form-area .form-check-input:hover {
  border-color: var(--white);
  background-color: var(--white);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
  transform: scale(1.05);
}

.login-form-area .form-check-input:checked {
  background-color: var(--accent-blue);
  border-color: var(--accent-blue);
  box-shadow: 0 2px 8px rgba(0, 149, 246, 0.3);
}

.login-form-area .form-check-input:checked::after {
  content: '✓';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  color: white;
  font-size: 0.85rem;
  font-weight: 700;
}

.login-form-area .form-check-label {
  cursor: pointer;
  font-size: 0.9rem;
  color: rgba(255, 255, 255, 0.95);
  margin: 0;
  font-weight: 600;
  user-select: none;
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
}

.btn-login {
  padding: 12px 28px;
  background: linear-gradient(135deg, var(--accent-blue) 0%, var(--accent-blue-dark) 100%);
  color: var(--white);
  border: none;
  border-radius: var(--radius-lg);
  font-size: 16px;
  font-weight: 700;
  cursor: pointer;
  transition: all 0.3s ease;
  margin-top: 8px;
  box-shadow: 0 6px 20px rgba(var(--primary-rgb), 0.35);
  font-family: var(--font-family);
  letter-spacing: 0.5px;
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
}

.btn-login:hover:not(:disabled) {
  transform: translateY(-3px);
  box-shadow: 0 10px 30px rgba(var(--primary-rgb), 0.45);
  background: linear-gradient(135deg, var(--accent-blue-dark) 0%, var(--primary-dark) 100%);
}

.btn-login:active:not(:disabled) {
  transform: translateY(-1px);
}

.btn-login:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none;
}

.login-footer {
  text-align: center;
  margin: 0;
  padding: 0;
  animation: fadeInUp 0.5s cubic-bezier(0.34, 1.56, 0.64, 1) 0.3s both;
  width: 100%;
}

.login-footer p {
  font-size: 0.8rem;
  color: rgba(255, 255, 255, 0.75);
  margin: 0;
  line-height: 1.5;
  font-weight: 400;
}

.login-footer strong {
  color: var(--white);
  font-weight: 600;
}

.theme-toggle-btn {
  position: fixed;
  bottom: var(--space-2xl);
  right: var(--space-2xl);
  width: 54px;
  height: 54px;
  border-radius: 50%;
  background-color: rgba(255, 255, 255, 0.9);
  border: none;
  cursor: pointer;
  font-size: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  color: var(--text-primary);
  font-weight: 700;
  box-shadow: var(--shadow-lg);
  transition: var(--transition-fast);
  backdrop-filter: blur(10px);
}

.theme-toggle-btn:hover {
  transform: scale(1.15) translateY(-4px);
  background-color: white;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.2);
}

.theme-toggle-btn:active {
  transform: scale(0.95);
}

#themeToggleIcon {
  display: inline-block;
  transition: transform 0.5s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.theme-toggle-btn:hover #themeToggleIcon {
  transform: rotate(180deg);
}

[data-theme="dark"] .theme-toggle-btn {
  background-color: rgba(255, 255, 255, 0.15);
  color: white;
}

[data-theme="dark"] .theme-toggle-btn:hover {
  background-color: rgba(255, 255, 255, 0.25);
}

[data-theme="dark"] .login-title {
  color: #f0f0f0;
}

[data-theme="dark"] .login-subtitle {
  color: rgba(240, 240, 240, 0.75);
}

[data-theme="dark"] .login-form-area {
  background: rgba(30, 30, 40, 0.5);
  border-color: rgba(100, 100, 120, 0.2);
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.3);
}

[data-theme="dark"] .login-form-area > p {
  color: rgba(240, 240, 240, 0.85);
}

[data-theme="dark"] .login-form-area .form-label {
  color: #f0f0f0;
}

[data-theme="dark"] .login-form-area .form-control {
  background-color: rgba(60, 60, 80, 0.8);
  border-color: rgba(100, 100, 120, 0.3);
  color: #f0f0f0;
}

[data-theme="dark"] .login-form-area .form-control::placeholder {
  color: #808080;
}

[data-theme="dark"] .login-form-area .form-control:hover:not(:focus) {
  background-color: rgba(70, 70, 90, 0.9);
  border-color: rgba(100, 100, 120, 0.5);
}

[data-theme="dark"] .login-form-area .form-control:focus {
  background-color: rgba(80, 80, 100, 0.95);
  border-color: var(--accent-blue);
  box-shadow: 0 0 0 3px rgba(165, 180, 252, 0.2), 0 6px 16px rgba(0, 0, 0, 0.3);
}

[data-theme="dark"] .login-form-area .form-check-input {
  background-color: rgba(100, 100, 120, 0.6);
  border-color: rgba(100, 100, 120, 0.4);
}

[data-theme="dark"] .login-form-area .form-check-label {
  color: rgba(240, 240, 240, 0.85);
}

[data-theme="dark"] .login-footer p {
  color: rgba(240, 240, 240, 0.6);
}

[data-theme="light"] .login-form-area {
  background: rgba(255, 255, 255, 0.95);
  border-color: rgba(59, 130, 246, 0.15);
  box-shadow: 0 8px 32px rgba(59, 130, 246, 0.12);
}

[data-theme="light"] .login-form-area > p {
  color: #475569;
}

[data-theme="light"] .login-form-area .form-label {
  color: #1e293b;
  font-weight: 600;
}

[data-theme="light"] .login-form-area .form-control {
  background-color: #f8fafc;
  border-color: rgba(59, 130, 246, 0.2);
  color: #1e293b;
}

[data-theme="light"] .login-form-area .form-control::placeholder {
  color: #94a3b8;
}

[data-theme="light"] .login-form-area .form-control:hover:not(:focus) {
  background-color: #ffffff;
  border-color: rgba(59, 130, 246, 0.4);
  box-shadow: 0 2px 8px rgba(59, 130, 246, 0.08);
}

[data-theme="light"] .login-form-area .form-control:focus {
  outline: none;
  border-color: #3b82f6;
  background-color: #ffffff;
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1), 0 4px 12px rgba(59, 130, 246, 0.15);
}

[data-theme="light"] .login-form-area .form-check-input {
  background-color: #f5f8fb;
  border-color: rgba(59, 130, 246, 0.3);
}

[data-theme="light"] .login-form-area .form-check-input:hover {
  border-color: #3b82f6;
  background-color: #ffffff;
  box-shadow: 0 2px 6px rgba(59, 130, 246, 0.1);
}

[data-theme="light"] .login-form-area .form-check-input:checked {
  background-color: #3b82f6;
  border-color: #3b82f6;
  box-shadow: 0 2px 8px rgba(59, 130, 246, 0.2);
}

[data-theme="light"] .login-form-area .form-check-label {
  color: #475569;
}

[data-theme="light"] .btn-login {
  background: linear-gradient(135deg, #3b82f6 0%, #2563eb 100%);
  box-shadow: 0 6px 20px rgba(59, 130, 246, 0.25);
}

[data-theme="light"] .btn-login:hover:not(:disabled) {
  box-shadow: 0 10px 28px rgba(59, 130, 246, 0.3);
}

[data-theme="light"] .login-footer p {
  color: #64748b;
}

@media (min-width: 1200px) {
  .login-card {
    max-width: 500px;
  }

  .login-title {
    font-size: 2.5rem;
  }

  .login-logo {
    height: 90px;
  }

  .login-logo img {
    width: 90px;
    height: 90px;
  }

  .login-form-area {
    padding: var(--space-2xl) var(--space-2xl);
  }

  .login-form-area .form-control {
    padding: 1.15rem 1.4rem;
    font-size: 0.95rem;
  }

  .btn-login {
    padding: 1.15rem 1.6rem;
    font-size: 0.95rem;
  }
}

@media (max-width: 1199px) and (min-width: 992px) {
  .login-card {
    max-width: 460px;
  }

  .login-title {
    font-size: 2.3rem;
  }

  .login-logo {
    height: 85px;
  }

  .login-logo img {
    width: 85px;
    height: 85px;
  }

  .login-form-area {
    padding: var(--space-2xl) var(--space-xl);
  }
}

@media (max-width: 991px) {
  .page-wrapper {
    padding: var(--space-lg);
  }

  .login-card {
    max-width: 420px;
  }

  .login-header {
    gap: var(--space-md);
  }

  .login-title {
    font-size: 2rem;
  }

  .login-subtitle {
    font-size: 0.9rem;
  }

  .login-logo {
    height: 75px;
    margin-bottom: var(--space-sm);
  }

  .login-logo img {
    width: 75px;
    height: 75px;
  }

  .login-form-area {
    padding: var(--space-xl) var(--space-lg);
    gap: var(--space-md);
  }

  .login-form-area > p {
    font-size: 0.9rem;
    margin-bottom: var(--space-md);
  }

  .login-form-area .form-control {
    padding: 1rem 1.2rem;
    font-size: 0.9rem;
  }

  .btn-login {
    padding: 1rem 1.4rem;
    font-size: 0.9rem;
  }

  .theme-toggle-btn {
    width: 50px;
    height: 50px;
    font-size: 22px;
    bottom: var(--space-xl);
    right: var(--space-xl);
  }
}

@media (max-width: 767px) {
  .page-wrapper {
    padding: var(--space-lg) var(--space-md);
  }

  .login-card {
    max-width: 100%;
    max-width: 380px;
    gap: var(--space-lg);
  }

  .login-header {
    gap: var(--space-sm);
  }

  .login-title {
    font-size: 1.8rem;
  }

  .login-subtitle {
    font-size: 0.85rem;
  }

  .login-logo {
    height: 65px;
    margin-bottom: var(--space-xs);
  }

  .login-logo img {
    width: 65px;
    height: 65px;
  }

  .login-form-area {
    padding: var(--space-lg) var(--space-md);
    gap: var(--space-md);
  }

  .login-form-area > p {
    font-size: 0.85rem;
    margin-bottom: var(--space-md);
  }

  form {
    gap: var(--space-md);
  }

  .login-form-area .form-group {
    gap: var(--space-sm);
  }

  .login-form-area .form-label {
    font-size: 0.85rem;
  }

  .login-form-area .form-control {
    padding: 0.95rem 1.1rem;
    font-size: 16px;
  }

  .btn-login {
    padding: 0.95rem 1.2rem;
    font-size: 0.9rem;
  }

  .theme-toggle-btn {
    width: 46px;
    height: 46px;
    font-size: 20px;
    bottom: var(--space-lg);
    right: var(--space-lg);
  }
}

@media (max-width: 575px) {
  .page-wrapper {
    padding: var(--space-md);
  }

  .login-card {
    max-width: 100%;
    gap: var(--space-lg);
  }

  .login-header {
    gap: var(--space-sm);
    margin-bottom: var(--space-md);
  }

  .login-title {
    font-size: 1.6rem;
  }

  .login-subtitle {
    font-size: 0.8rem;
  }

  .login-logo {
    height: 60px;
  }

  .login-logo img {
    width: 60px;
    height: 60px;
  }

  .login-form-area {
    padding: var(--space-lg) var(--space-md);
    gap: var(--space-md);
  }

  .login-form-area > p {
    font-size: 0.8rem;
    margin-bottom: var(--space-md);
  }

  form {
    gap: var(--space-md);
  }

  .login-form-area .form-group {
    gap: var(--space-sm);
  }

  .login-form-area .form-label {
    font-size: 0.8rem;
  }

  .login-form-area .form-control {
    padding: 0.9rem 1rem;
    font-size: 15px;
    border-radius: 0.8rem;
  }

  .btn-login {
    padding: 0.9rem 1rem;
    font-size: 0.85rem;
  }

  .login-footer p {
    font-size: 0.75rem;
  }

  .theme-toggle-btn {
    width: 42px;
    height: 42px;
    font-size: 18px;
    bottom: var(--space-md);
    right: var(--space-md);
  }
}

@media (max-width: 359px) {
  .page-wrapper {
    padding: var(--space-sm);
  }

  .login-card {
    gap: var(--space-md);
  }

  .login-title {
    font-size: 1.4rem;
  }

  .login-subtitle {
    font-size: 0.75rem;
  }

  .login-logo {
    height: 55px;
  }

  .login-logo img {
    width: 55px;
    height: 55px;
  }

  .login-form-area {
    padding: var(--space-lg) var(--space-sm);
  }

  .login-form-area > p {
    font-size: 0.75rem;
  }

  .login-form-area .form-control {
    padding: 0.8rem 0.9rem;
    font-size: 14px;
  }

  .btn-login {
    padding: 0.8rem;
  }
}

@media (max-height: 650px) and (orientation: landscape) {
  .page-wrapper {
    padding: var(--space-sm);
  }

  .login-card {
    gap: var(--space-md);
  }

  .login-header {
    gap: var(--space-xs);
  }

  .login-title {
    font-size: 1.4rem;
  }

  .login-subtitle {
    font-size: 0.75rem;
  }

  .login-logo {
    height: 50px;
  }

  .login-logo img {
    width: 50px;
    height: 50px;
  }

  .login-form-area {
    padding: var(--space-md);
    gap: var(--space-sm);
  }

  .login-form-area > p {
    font-size: 0.75rem;
    margin-bottom: var(--space-sm);
  }

  form {
    gap: var(--space-sm);
  }

  .login-form-area .form-group {
    gap: var(--space-xs);
  }

  .login-form-area .form-control {
    padding: 0.7rem 1rem;
    font-size: 0.8rem;
  }

  .btn-login {
    padding: 0.7rem;
    font-size: 0.8rem;
  }

  .theme-toggle-btn {
    width: 40px;
    height: 40px;
    font-size: 16px;
    bottom: var(--space-md);
    right: var(--space-md);
  }
}