/* Student Login — Smarto One */
:root {
  --stu-primary: #0f766e;
  --stu-primary-dark: #0d5c56;
  --stu-primary-light: #14b8a6;
  --stu-accent: #f59e0b;
  --stu-accent-soft: #fef3c7;
  --stu-surface: #ffffff;
  --stu-text: #0f172a;
  --stu-text-muted: #64748b;
  --stu-border: #e2e8f0;
  --stu-radius: 20px;
  --stu-radius-sm: 12px;
  --stu-shadow: 0 25px 50px -12px rgba(15, 118, 110, 0.18);
  --stu-font: 'Plus Jakarta Sans', system-ui, -apple-system, sans-serif;
}

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

body.stu-login-page {
  margin: 0;
  min-height: 100vh;
  font-family: var(--stu-font);
  color: var(--stu-text);
  background: #0c4a6e;
  overflow-x: hidden;
}

.stu-login-bg {
  position: fixed;
  inset: 0;
  z-index: 0;
  background:
    radial-gradient(ellipse 80% 60% at 10% 20%, rgba(20, 184, 166, 0.45) 0%, transparent 55%),
    radial-gradient(ellipse 70% 50% at 90% 80%, rgba(245, 158, 11, 0.2) 0%, transparent 50%),
    linear-gradient(145deg, #0f766e 0%, #0c4a6e 40%, #134e4a 100%);
}

.stu-login-bg::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.04'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
  opacity: 0.6;
}

.stu-login-bg .stu-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(60px);
  opacity: 0.5;
  animation: stu-float 12s ease-in-out infinite;
}

.stu-login-bg .stu-orb--1 {
  width: 320px;
  height: 320px;
  background: #2dd4bf;
  top: -80px;
  right: 10%;
  animation-delay: 0s;
}

.stu-login-bg .stu-orb--2 {
  width: 240px;
  height: 240px;
  background: #fbbf24;
  bottom: 10%;
  left: -60px;
  animation-delay: -4s;
}

.stu-login-bg .stu-orb--3 {
  width: 180px;
  height: 180px;
  background: #38bdf8;
  top: 40%;
  left: 30%;
  animation-delay: -8s;
}

@keyframes stu-float {
  0%, 100% { transform: translate(0, 0) scale(1); }
  33% { transform: translate(20px, -15px) scale(1.05); }
  66% { transform: translate(-10px, 10px) scale(0.95); }
}

.stu-login-shell {
  position: relative;
  z-index: 1;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.25rem;
}

.stu-login-back {
  position: fixed;
  top: 1.25rem;
  left: 1.25rem;
  z-index: 10;
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.5rem 1rem;
  font-size: 0.875rem;
  font-weight: 600;
  color: rgba(255, 255, 255, 0.9);
  text-decoration: none;
  background: rgba(255, 255, 255, 0.12);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 999px;
  backdrop-filter: blur(8px);
  transition: background 0.2s, color 0.2s, transform 0.15s;
}

.stu-login-back:hover {
  color: #fff;
  background: rgba(255, 255, 255, 0.22);
  transform: translateX(-2px);
}

.stu-login-card {
  display: grid;
  grid-template-columns: 1fr 1fr;
  width: 100%;
  max-width: 980px;
  min-height: 560px;
  background: var(--stu-surface);
  border-radius: var(--stu-radius);
  box-shadow: var(--stu-shadow), 0 0 0 1px rgba(255, 255, 255, 0.08) inset;
  overflow: hidden;
}

.stu-login-brand {
  position: relative;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 2.5rem 2rem;
  background: linear-gradient(165deg, var(--stu-primary) 0%, var(--stu-primary-dark) 100%);
  color: #fff;
  overflow: hidden;
}

.stu-login-brand::before {
  content: '';
  position: absolute;
  top: -40%;
  right: -30%;
  width: 80%;
  height: 140%;
  background: radial-gradient(ellipse, rgba(255, 255, 255, 0.15) 0%, transparent 65%);
  pointer-events: none;
}

.stu-login-brand__badge {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  width: fit-content;
  padding: 0.35rem 0.85rem;
  margin-bottom: 1.25rem;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  background: rgba(255, 255, 255, 0.15);
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.25);
}

.stu-login-brand h2 {
  position: relative;
  margin: 0 0 0.75rem;
  font-size: clamp(1.5rem, 3vw, 1.85rem);
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: -0.03em;
}

.stu-login-brand p {
  position: relative;
  margin: 0 0 1.75rem;
  font-size: 0.95rem;
  line-height: 1.6;
  color: rgba(255, 255, 255, 0.85);
  max-width: 280px;
}

.stu-login-features {
  position: relative;
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.stu-login-features li {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  font-size: 0.875rem;
  font-weight: 500;
  color: rgba(255, 255, 255, 0.92);
}

.stu-login-features li i {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  font-size: 1rem;
  background: rgba(255, 255, 255, 0.18);
  border-radius: 10px;
  flex-shrink: 0;
}

.stu-login-brand__visual {
  position: relative;
  margin-top: 2rem;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 140px;
}

.stu-login-brand__visual img {
  max-width: 100%;
  max-height: 200px;
  object-fit: contain;
  filter: drop-shadow(0 12px 24px rgba(0, 0, 0, 0.2));
}

.stu-login-brand__visual--fallback {
  width: 120px;
  height: 120px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(255, 255, 255, 0.12);
  border-radius: 24px;
  font-size: 3.5rem;
  color: var(--stu-accent-soft);
}

.stu-login-form-panel {
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 2.5rem 2.75rem;
}

.stu-login-form-panel__header {
  margin-bottom: 1.75rem;
}

.stu-login-form-panel__header h1 {
  margin: 0 0 0.35rem;
  font-size: 1.65rem;
  font-weight: 800;
  color: var(--stu-text);
  letter-spacing: -0.02em;
}

.stu-login-form-panel__header p {
  margin: 0;
  font-size: 0.9rem;
  color: var(--stu-text-muted);
}

.stu-login-form .form-label {
  font-size: 0.8125rem;
  font-weight: 700;
  color: var(--stu-text);
  margin-bottom: 0.4rem;
}

.stu-login-field {
  position: relative;
  margin-bottom: 1.15rem;
}

.stu-login-field .form-control {
  width: 100%;
  padding: 0.8rem 1rem 0.8rem 2.75rem;
  font-size: 0.95rem;
  font-family: inherit;
  border: 1.5px solid var(--stu-border);
  border-radius: var(--stu-radius-sm);
  background: #f8fafc;
  transition: border-color 0.2s, box-shadow 0.2s, background 0.2s;
}

.stu-login-field .form-control:focus {
  outline: none;
  border-color: var(--stu-primary-light);
  background: #fff;
  box-shadow: 0 0 0 4px rgba(20, 184, 166, 0.15);
}

.stu-login-field__icon {
  position: absolute;
  left: 1rem;
  top: 50%;
  transform: translateY(-50%);
  font-size: 1.1rem;
  color: var(--stu-text-muted);
  pointer-events: none;
  transition: color 0.2s;
}

.stu-login-field:focus-within .stu-login-field__icon {
  color: var(--stu-primary);
}

.stu-login-field--password .form-control {
  padding-right: 2.75rem;
}

.stu-login-toggle-pwd {
  position: absolute;
  right: 0.75rem;
  top: 50%;
  transform: translateY(-50%);
  padding: 0.35rem;
  border: none;
  background: transparent;
  color: var(--stu-text-muted);
  cursor: pointer;
  border-radius: 8px;
  line-height: 1;
  transition: color 0.2s, background 0.2s;
}

.stu-login-toggle-pwd:hover {
  color: var(--stu-primary);
  background: rgba(15, 118, 110, 0.08);
}

.stu-login-recap {
  margin-bottom: 1.25rem;
}

.stu-login-submit {
  width: 100%;
  padding: 0.9rem 1.25rem;
  font-family: inherit;
  font-size: 1rem;
  font-weight: 700;
  color: #fff;
  background: linear-gradient(135deg, var(--stu-primary-light) 0%, var(--stu-primary) 100%);
  border: none;
  border-radius: var(--stu-radius-sm);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  box-shadow: 0 4px 14px rgba(15, 118, 110, 0.35);
  transition: transform 0.15s, box-shadow 0.2s, opacity 0.2s;
}

.stu-login-submit:hover:not(:disabled) {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(15, 118, 110, 0.4);
}

.stu-login-submit:disabled {
  opacity: 0.75;
  cursor: not-allowed;
  transform: none;
}

.stu-login-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
  margin-top: 1.25rem;
  padding-top: 1.25rem;
  border-top: 1px solid var(--stu-border);
}

.stu-login-links a {
  flex: 1;
  min-width: 140px;
  text-align: center;
  padding: 0.55rem 0.75rem;
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--stu-primary);
  text-decoration: none;
  background: #f0fdfa;
  border: 1px solid #99f6e4;
  border-radius: var(--stu-radius-sm);
  transition: background 0.2s, border-color 0.2s, color 0.2s;
}

.stu-login-links a:hover {
  background: var(--stu-primary);
  border-color: var(--stu-primary);
  color: #fff;
}

.stu-login-loader {
  position: fixed;
  inset: 0;
  z-index: 9999;
  display: none;
  align-items: center;
  justify-content: center;
  background: rgba(15, 23, 42, 0.35);
  backdrop-filter: blur(4px);
}

.stu-login-loader.show {
  display: flex;
}

.stu-login-loader__spinner {
  width: 48px;
  height: 48px;
  border: 3px solid rgba(255, 255, 255, 0.3);
  border-top-color: #fff;
  border-radius: 50%;
  animation: stu-spin 0.7s linear infinite;
}

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

.stu-login-toast {
  position: fixed;
  top: 1.25rem;
  right: 1.25rem;
  z-index: 10000;
  max-width: 22rem;
  opacity: 0;
  pointer-events: none;
  transform: translateX(1rem);
  transition: opacity 0.25s, transform 0.25s;
}

.stu-login-toast.is-visible {
  opacity: 1;
  pointer-events: auto;
  transform: translateX(0);
}

.stu-login-toast__inner {
  padding: 0.85rem 1.1rem;
  border-radius: var(--stu-radius-sm);
  box-shadow: 0 12px 28px rgba(0, 0, 0, 0.15);
  color: #fff;
  font-size: 0.875rem;
  font-weight: 600;
}

.stu-login-toast__inner--error {
  background: #dc2626;
}

.stu-login-toast__inner--success {
  background: var(--stu-primary);
}

@media (max-width: 768px) {
  .stu-login-card {
    grid-template-columns: 1fr;
    max-width: 440px;
    min-height: auto;
  }

  .stu-login-brand {
    padding: 1.75rem 1.5rem;
    text-align: center;
  }

  .stu-login-brand p {
    max-width: none;
    margin-left: auto;
    margin-right: auto;
  }

  .stu-login-features {
    align-items: center;
  }

  .stu-login-brand__visual {
    margin-top: 1rem;
    min-height: 80px;
  }

  .stu-login-brand__visual img {
    max-height: 120px;
  }

  .stu-login-form-panel {
    padding: 1.75rem 1.5rem 2rem;
  }

  .stu-login-back {
    top: 0.75rem;
    left: 0.75rem;
    font-size: 0.8125rem;
    padding: 0.4rem 0.75rem;
  }
}