/* ============================================
   Casanprev Login - Responsive Styles
   Two-Factor Authentication
   Performance Optimized
   ============================================ */

:root { --primary-color: #00897B; --primary-dark: #00695c; --secondary-color: #1A237E; --input-border: #00BCD4; --input-focus: #00897B; --danger-color: #d32f2f; --warning-color: #f57c00; --bg-light: #f5f5f5; --bg-lighter: #e8e8e8; --text-primary: #333; --text-muted: #666; --text-light: #bbb; --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.08); --shadow-md: 0 10px 40px rgba(0, 0, 0, 0.1); --transition-speed: 0.3s; --border-radius: 0.5rem; }

/* ============================================
   Global Styles
   ============================================ */

* { box-sizing: border-box; }

html,
body { height: 100%; margin: 0; padding: 0; overflow-x: hidden; }

body { background: linear-gradient(135deg, var(--bg-light) 0%, var(--bg-lighter) 100%); display: flex; align-items: center; justify-content: center; font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Roboto", "Oxygen", "Ubuntu", "Cantarell", sans-serif; font-size: 1rem; line-height: 1.5; color: var(--text-primary); min-height: 100vh; }

/* ============================================
   Login Container
   ============================================ */

.login-container { width: 100%; max-width: 480px; padding: 1rem; display: flex; align-items: center; justify-content: center; min-height: 100vh; }

/* ============================================
   Login Card
   ============================================ */

.login-card { background: white; border-radius: 1rem; box-shadow: var(--shadow-md); padding: 2.5rem 2rem; width: 100%; animation: slideUp 0.4s ease-out; }

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

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

/* ============================================
   Step Container
   ============================================ */

.step-container { animation: fadeIn 0.3s ease-out; }

.step-container.d-none { display: none !important; }

/* ============================================
   Logo Section
   ============================================ */

.logo-section { text-align: center; margin-bottom: 2rem; }

.logo-section img { max-width: 200px; width: 100%; height: auto; display: block; margin: 0 auto; filter: drop-shadow(var(--shadow-sm)); }

.subtitle,
.validation-title { color: var(--text-muted); font-size: 0.95rem; font-weight: 500; text-align: center; margin-top: 1rem; margin-bottom: 0; transition: color var(--transition-speed) ease; }

.validation-title { font-size: 1.1rem; font-weight: 600; color: var(--secondary-color); }

/* ============================================
   Form Styles
   ============================================ */

.form-group { margin-bottom: 1.5rem; }

.form-label { color: var(--input-border); font-weight: 600; font-size: 0.9rem; margin-bottom: 0.5rem; display: block; }

.form-control { border: 2px solid var(--input-border); border-radius: var(--border-radius); padding: 0.75rem 1rem; font-size: 1rem; transition: border-color var(--transition-speed) ease, box-shadow var(--transition-speed) ease; width: 100%; background-color: #fff; color: var(--text-primary); }

.form-control::placeholder { color: var(--text-light); }

.form-control:focus { border-color: var(--input-focus); box-shadow: 0 0 0 0.2rem rgba(0, 137, 123, 0.15); outline: none; }

.form-control:disabled,
.form-control[readonly] { background-color: #f5f5f5; opacity: 0.65; cursor: not-allowed; }

.form-control.is-invalid { border-color: var(--danger-color); }

.form-control.is-invalid:focus { border-color: var(--danger-color); box-shadow: 0 0 0 0.2rem rgba(211, 47, 47, 0.15); }

.invalid-feedback { display: block; margin-top: 0.25rem; font-size: 0.875rem; color: var(--danger-color); }

.form-text { display: block; margin-top: 0.25rem; font-size: 0.875rem; color: var(--text-muted); }

/* ============================================
   Validation Code Input
   ============================================ */

.validation-code-input { font-size: 1.5rem; letter-spacing: 0.5rem; text-align: center; font-weight: 600; font-family: 'Courier New', monospace; }

/* ============================================
   Countdown Timer
   ============================================ */

.countdown-container { text-align: center; margin-bottom: 1.5rem; padding: 0.75rem; background-color: #f0f7ff; border-radius: var(--border-radius); }

.countdown-text { color: var(--text-muted); font-weight: 500; }

#countdownTimer { font-weight: 700; color: var(--primary-color); font-family: 'Courier New', monospace; }

/* ============================================
   Alert Styles
   ============================================ */

.alert { border-radius: var(--border-radius); border: 1px solid; padding: 0.75rem 1rem; margin-bottom: 1.5rem; font-size: 0.95rem; animation: slideDown 0.3s ease-out; }

@keyframes slideDown {
    from { opacity: 0; transform: translateY(-10px); }
    to { opacity: 1; transform: translateY(0); }
}

.alert-danger { background-color: #ffebee; border-color: #ef5350; color: #c62828; }

.alert-danger strong { font-weight: 600; }

.alert.d-none { display: none !important; }

.btn-close { padding: 0.25rem; background-size: 1rem; }

/* ============================================
   Button Styles
   ============================================ */

.btn-login { width: 100%; background-color: var(--primary-color); border: none; color: white; padding: 0.75rem 2rem; font-size: 1rem; font-weight: 600; border-radius: var(--border-radius); cursor: pointer; transition: background-color var(--transition-speed) ease, transform 0.2s ease, box-shadow var(--transition-speed) ease; margin-top: 1rem; display: inline-flex; align-items: center; justify-content: center; gap: 0.5rem; }

.btn-login:hover:not(:disabled) { background-color: var(--primary-dark); transform: translateY(-2px); box-shadow: 0 4px 12px rgba(0, 137, 123, 0.3); }

.btn-login:active:not(:disabled) { transform: translateY(0); }

.btn-login:disabled { opacity: 0.7; cursor: not-allowed; }

.spinner-border-sm { width: 1rem; height: 1rem; border-width: 0.25rem; }

.d-none { display: none !important; }

.ms-2 { margin-left: 0.5rem; }

/* ============================================
   Secondary Buttons
   ============================================ */

.secondary-buttons { display: flex; gap: 0.5rem; justify-content: center; margin-top: 1rem; flex-wrap: wrap; }

.btn-link-secondary { background: none; border: none; color: var(--input-border); cursor: pointer; font-size: 0.9rem; text-decoration: none; padding: 0.5rem 1rem; transition: color var(--transition-speed) ease; font-weight: 500; }

.btn-link-secondary:hover { color: var(--input-focus); text-decoration: underline; }

.btn-link-secondary:disabled { opacity: 0.5; cursor: not-allowed; }

/* ============================================
   Responsive Styles
   ============================================ */

@media (max-width: 576px) {
    .login-card { padding: 2rem 1.5rem; }

    .logo-section img { max-width: 160px; }

    .subtitle,
    .validation-title { font-size: 0.85rem; }

    .form-control,
    .btn-login { font-size: 16px; }

    .login-container { min-height: auto; padding: 1rem; }

    .secondary-buttons { flex-direction: column; gap: 0; }

    .btn-link-secondary { width: 100%; text-align: center; }
}

@media (max-width: 480px) {
    .login-card { padding: 1.5rem 1rem; }

    .form-group { margin-bottom: 1.25rem; }

    .btn-login { padding: 0.65rem 1.5rem; font-size: 0.95rem; }

    .validation-code-input { font-size: 1.25rem; letter-spacing: 0.25rem; }

    .countdown-container { padding: 0.5rem; margin-bottom: 1.25rem; }
}

/* ============================================
   Accessibility - Reduced Motion
   ============================================ */

@media (prefers-reduced-motion: reduce) {
    * { animation-duration: 0.01ms !important; animation-iteration-count: 1 !important; transition-duration: 0.01ms !important; }

    .login-card,
    .step-container { animation: none; }
}

/* ============================================
   Dark Mode Support
   ============================================ */



/* ============================================
   Print Styles
   ============================================ */

@media print {
    body,
    .login-container,
    .login-card { background: white; box-shadow: none; }

    .login-card { page-break-inside: avoid; }
}