/* GRADLINK Login Page Styles */
/* Uses global CSS variables from color-pallate.css */

* {
  box-sizing: border-box
}

html,
body {
  height: 100%;
  background: var(--bg) !important;
}

body {
  margin: 0;
  font-family: 'Poppins', system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, sans-serif;
  background: var(--bg) !important;
  color: var(--text);
}

.page {
  min-height: 100vh;
  background: var(--bg);
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  gap: 4rem;
  padding: 3rem clamp(1rem, 4vw, 4rem);
}

/* Brand side */
.brand {
  width: 40vw;
  text-align: center;
  margin-top: -30px;
}

.logo-mark {
  max-width: 320px;
  margin: 0 auto 1.25rem;
}

.logo-mark img {
  width: 100%;
  height: auto;
  display: block;
}

.brand-title {
  font-size: clamp(2rem, 5vw, 3.5rem);
  letter-spacing: 1px;
  margin: 0.5rem 0 0.75rem;
  font-weight: 800;
}

.brand-copy {
  max-width: 330px;
  margin: 0 auto;
  color: var(--muted);
  line-height: 1.6;
}

/* Auth Card - Dynamic Height */
.auth-card {
  position: relative;
  background: var(--card);
  border-radius: var(--radius-lg);
  padding: 2rem;
  box-shadow: var(--shadow-1);
  width: 100%;
  max-width: 500px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;

  /* Dynamic height based on content */
  min-height: 400px;
  max-height: 90vh;
  overflow-y: auto;
  
  /* Smooth transitions for content changes */
  transition: all 0.3s ease;
}

.card-close {
  position: absolute;
  right: 16px;
  top: 12px;
  border: 0;
  background: transparent;
  font-size: 30px;
  line-height: 1;
  cursor: pointer;
  color: var(--muted);
  z-index: 10;
  transition: color 0.2s ease;
}

.card-close:hover {
  color: var(--text);
}

.card-title {
  text-align: center;
  font-size: clamp(1.5rem, 3vw, 2rem);
  margin: 1rem 0 2rem;
  font-weight: 800;
  color: var(--text);
}

/* Dynamic content area */
.auth-content {
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  min-height: 300px;
}

.alert {
  background: rgba(255, 255, 255, 0.04);
  color: var(--muted);
  border: 1px solid var(--border);
  padding: .75rem 1rem;
  border-radius: 10px;
  margin-bottom: 1rem;
}

.error-message {
  color: #ff6b6b;
  margin: 0.5rem 0;
  font-size: 0.9rem;
}

.form {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  flex: 1;
  padding: 0 1rem;
}

.field {
  position: relative;
  margin: 5px;
}

.field p {
  margin: 0 0 0.5rem 0;
  font-weight: 500;
  color: var(--text);
  font-size: 0.9rem;
}

.sr-only {
  position: absolute;
  left: -10000px;
  top: auto;
  width: 1px;
  height: 1px;
  overflow: hidden;
}

.input {
  width: 100%;
  padding: 1rem;
  background: var(--input);
  border-radius: 10px;
  border: 1px solid var(--border);
  outline: none;
  font-size: 0.95rem;
  color: var(--text);
  font-family: inherit;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.input:focus {
  border-color: var(--link);
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

.select {
  appearance: none;
  -webkit-appearance: none;
  -moz-appearance: none;
  cursor: pointer;
}

.chevron {
  position: absolute;
  right: 14px;
  top: 50%;
  transform: translateY(-50%);
  pointer-events: none;
  font-size: 18px;
  color: var(--text);
  opacity: 0.8;
}

.actions {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: auto;
  padding: 1rem 0;
  gap: 1rem;
  min-height: 60px;
}

/* Slides + transitions (auth-only) */
.slide {
  display: none;
  opacity: 0;
  transform: translateX(20px);
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}
.slide.active { display: block; opacity: 1; transform: translateX(0); }

@keyframes slideInRight { from { opacity:0; transform:translateX(30px) } to { opacity:1; transform:translateX(0) } }
@keyframes slideInLeft  { from { opacity:0; transform:translateX(-30px)} to { opacity:1; transform:translateX(0) } }
.slide.slide-in-right { animation: slideInRight .4s cubic-bezier(0.4,0,0.2,1) }
.slide.slide-in-left  { animation: slideInLeft  .4s cubic-bezier(0.4,0,0.2,1) }

/* Loading State */
.loading-state { display:flex; flex-direction:column; align-items:center; justify-content:center; padding:3rem; color:var(--muted); }
.loading-spinner {
  width: 40px; height: 40px;
  border: 3px solid var(--border);
  border-top: 3px solid var(--link);
  border-radius: 50%;
  animation: spin 1s linear infinite;
  margin-bottom: 1rem;
}

@keyframes spin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

/* Desktop-only positioning */
@media (min-width: 1000px) {
  .auth-card {
    transform: translateX(-60px);
  }
}

/* Animation for content transitions */
.auth-card.transitioning {
  opacity: 0.7;
  transform: translateX(-60px) scale(0.98);
}

.auth-card.content-loaded {
  opacity: 1;
  transform: translateX(-60px) scale(1);
}

/* Responsive Design */
@media (max-width: 1000px) {
  .page {
    grid-template-columns: 1fr;
    gap: 2rem;
    padding: 2rem 1rem;
  }

  .brand {
    order: 2;
    width: 100%;
    padding-bottom: 1.5rem;
  }

  .auth-card {
    order: 1;
    max-width: 100%;
    margin: 0;
    padding: 1.5rem;
  }

  .logo-mark {
    max-width: 260px;
  }

  .form {
    padding: 0;
    gap: 1.25rem;
  }

  .actions {
    padding: 1rem 0 0;
  }
}

@media (max-width: 640px) {
  .auth-card {
    padding: 1rem;
    min-height: 350px;
  }

  .card-title {
    font-size: 1.5rem;
    margin: 0.5rem 0 1.5rem;
  }

  .input {
    padding: 0.875rem;
    font-size: 0.9rem;
  }

  .btn-next {
    padding: 0.875rem 1.5rem;
    font-size: 0.9rem;
  }

  .form {
    gap: 1rem;
  }
}