/**
 * HAI Tech Academy - Modern Auth Pages
 * Login, Register, Reset Password
 */

:root {
  --bg-primary: #0a0a0f;
  --bg-secondary: #12121a;
  --bg-card: #1a1a24;
  --bg-hover: #22222e;
  --bg-input: #16161e;
  --accent: #6366f1;
  --accent-glow: rgba(99, 102, 241, 0.3);
  --accent-light: #818cf8;
  --success: #10b981;
  --error: #ef4444;
  --text-primary: #f8fafc;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  --border: rgba(255, 255, 255, 0.08);
  --border-focus: rgba(99, 102, 241, 0.5);
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
  font-family: 'Heebo', system-ui, sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  min-height: 100vh;
  direction: rtl;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
}

/* ==================== BACKGROUND ==================== */
.auth-bg {
  position: fixed;
  inset: 0;
  background: 
    radial-gradient(circle at 20% 20%, rgba(99, 102, 241, 0.15) 0%, transparent 50%),
    radial-gradient(circle at 80% 80%, rgba(139, 92, 246, 0.1) 0%, transparent 50%),
    var(--bg-primary);
  z-index: -1;
}

.auth-bg::before {
  content: '';
  position: absolute;
  inset: 0;
  background: 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='0.02'%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: 0.5;
}

/* ==================== AUTH CONTAINER ==================== */
.auth-container {
  width: 100%;
  max-width: 440px;
}

/* ==================== LOGO ==================== */
.auth-logo {
  text-align: center;
  margin-bottom: 40px;
}

.auth-logo img {
  height: 50px;
  margin-bottom: 16px;
}

.auth-logo h1 {
  font-size: 24px;
  font-weight: 700;
  margin-bottom: 8px;
}

.auth-logo p {
  color: var(--text-secondary);
  font-size: 15px;
}

/* ==================== AUTH CARD ==================== */
.auth-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  padding: 40px;
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
}

.auth-title {
  font-size: 28px;
  font-weight: 700;
  text-align: center;
  margin-bottom: 8px;
}

.auth-subtitle {
  color: var(--text-secondary);
  text-align: center;
  margin-bottom: 32px;
  font-size: 15px;
}

/* ==================== FORM ==================== */
.auth-form {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.form-label {
  font-size: 14px;
  font-weight: 500;
  color: var(--text-secondary);
}

.form-input-wrapper {
  position: relative;
}

.form-input {
  width: 100%;
  padding: 16px 20px;
  padding-right: 48px;
  background: var(--bg-input);
  border: 2px solid var(--border);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-size: 16px;
  font-family: inherit;
  transition: var(--transition);
}

.form-input:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 4px var(--accent-glow);
}

.form-input::placeholder {
  color: var(--text-muted);
}

.form-icon {
  position: absolute;
  right: 16px;
  top: 50%;
  transform: translateY(-50%);
  width: 20px;
  height: 20px;
  color: var(--text-muted);
  pointer-events: none;
}

.password-toggle {
  position: absolute;
  left: 16px;
  top: 50%;
  transform: translateY(-50%);
  background: none;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  padding: 4px;
  transition: var(--transition);
}

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

.password-toggle svg {
  width: 20px;
  height: 20px;
}

/* ==================== CHECKBOX ==================== */
.form-checkbox {
  display: flex;
  align-items: center;
  gap: 12px;
  cursor: pointer;
}

.form-checkbox input {
  display: none;
}

.checkbox-custom {
  width: 22px;
  height: 22px;
  border: 2px solid var(--border);
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
  flex-shrink: 0;
}

.form-checkbox input:checked + .checkbox-custom {
  background: var(--accent);
  border-color: var(--accent);
}

.checkbox-custom svg {
  width: 14px;
  height: 14px;
  color: white;
  opacity: 0;
  transform: scale(0.5);
  transition: var(--transition);
}

.form-checkbox input:checked + .checkbox-custom svg {
  opacity: 1;
  transform: scale(1);
}

.form-checkbox span {
  font-size: 14px;
  color: var(--text-secondary);
}

/* ==================== BUTTONS ==================== */
.btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 16px 28px;
  border-radius: var(--radius-md);
  font-size: 16px;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  border: none;
  text-decoration: none;
  font-family: inherit;
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent), var(--accent-light));
  color: white;
  box-shadow: 0 4px 15px var(--accent-glow);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px var(--accent-glow);
}

.btn-primary:active {
  transform: translateY(0);
}

.btn-primary:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  transform: none;
}

.btn svg {
  width: 20px;
  height: 20px;
}

/* ==================== DIVIDER ==================== */
.auth-divider {
  display: flex;
  align-items: center;
  gap: 16px;
  margin: 24px 0;
}

.auth-divider::before,
.auth-divider::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--border);
}

.auth-divider span {
  color: var(--text-muted);
  font-size: 13px;
}

/* ==================== SOCIAL BUTTONS ==================== */
.social-btns {
  display: flex;
  gap: 12px;
}

.btn-social {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 14px;
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  color: var(--text-secondary);
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  transition: var(--transition);
}

.btn-social:hover {
  background: var(--bg-hover);
  border-color: var(--text-muted);
  color: var(--text-primary);
}

.btn-social svg {
  width: 20px;
  height: 20px;
}

/* ==================== LINKS ==================== */
.auth-links {
  text-align: center;
  margin-top: 24px;
}

.auth-links a {
  color: var(--accent-light);
  text-decoration: none;
  font-size: 14px;
  transition: var(--transition);
}

.auth-links a:hover {
  color: var(--accent);
  text-decoration: underline;
}

.auth-footer {
  text-align: center;
  margin-top: 32px;
  padding-top: 24px;
  border-top: 1px solid var(--border);
  color: var(--text-secondary);
  font-size: 14px;
}

.auth-footer a {
  color: var(--accent-light);
  text-decoration: none;
  font-weight: 600;
}

.auth-footer a:hover {
  text-decoration: underline;
}

/* ==================== ERROR MESSAGE ==================== */
.error-message {
  background: rgba(239, 68, 68, 0.1);
  border: 1px solid rgba(239, 68, 68, 0.3);
  border-radius: var(--radius-md);
  padding: 12px 16px;
  color: var(--error);
  font-size: 14px;
  display: none;
}

.error-message.show {
  display: flex;
  align-items: center;
  gap: 10px;
}

.error-message svg {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
}

/* ==================== SUCCESS MESSAGE ==================== */
.success-message {
  background: rgba(16, 185, 129, 0.1);
  border: 1px solid rgba(16, 185, 129, 0.3);
  border-radius: var(--radius-md);
  padding: 12px 16px;
  color: var(--success);
  font-size: 14px;
  display: none;
}

.success-message.show {
  display: flex;
  align-items: center;
  gap: 10px;
}

/* ==================== LOADING ==================== */
.btn-loading {
  position: relative;
  color: transparent !important;
}

.btn-loading::after {
  content: '';
  position: absolute;
  width: 20px;
  height: 20px;
  border: 2px solid transparent;
  border-top-color: white;
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

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

/* ==================== MOBILE ==================== */
@media (max-width: 480px) {
  .auth-card {
    padding: 32px 24px;
  }

  .auth-title {
    font-size: 24px;
  }

  .social-btns {
    flex-direction: column;
  }
}

/* ==================== ANIMATIONS ==================== */
@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.auth-container {
  animation: fadeIn 0.5s ease;
}