/* ============================================
   ENTERPRISE AUTH PAGE - MOBILE FIRST
   Aligned with Inspace Landing Page Standards
   ============================================ */
:root {
    /* Core Colors - Neutral Universal Palette */
    --auth-ink: #0f172a;
    --auth-cream: #f8fafc;
    --auth-warm-white: #ffffff;
    --auth-primary: #475569;
    --auth-primary-light: #64748b;
    --auth-secondary: #94a3b8;
    --auth-charcoal: #334155;
    --auth-mist: #e2e8f0;
    --auth-accent-subtle: #6366f1;
    
    /* Functional Colors */
    --auth-accent: #475569;
    --auth-accent-hover: #334155;
    --auth-muted: #64748b;
    --auth-border: rgba(15, 23, 42, 0.08);
    --auth-border-hover: rgba(15, 23, 42, 0.15);
    --auth-success: #22c55e;
    --auth-warning: #f59e0b;
    --auth-danger: #ef4444;
    
    /* Persona Card Colors - Neutral Tints */
    --auth-user: #6366f1;
    --auth-user-light: rgba(99, 102, 241, 0.08);
    --auth-reseller: #10b981;
    --auth-reseller-light: rgba(16, 185, 129, 0.08);
    --auth-manufacturer: #8b5cf6;
    --auth-manufacturer-light: rgba(139, 92, 246, 0.06);
    
    /* Typography */
    --auth-font-display: 'DM Sans', -apple-system, BlinkMacSystemFont, sans-serif;
    --auth-font-body: 'DM Sans', -apple-system, BlinkMacSystemFont, sans-serif;
    
    /* Spacing */
    --auth-space-xs: 0.5rem;
    --auth-space-sm: 1rem;
    --auth-space-md: 1.5rem;
    --auth-space-lg: 2rem;
    --auth-space-xl: 3rem;
    
    /* Layout */
    --auth-navbar-height: 72px;
    --auth-max-width: 1000px;
    --auth-container-padding: 1.5rem;
    
    /* Borders & Radius */
    --auth-radius-sm: 8px;
    --auth-radius-md: 16px;
    --auth-radius-lg: 24px;
    --auth-radius-full: 100px;
    
    /* Shadows - Clean, Modern */
    --auth-shadow-sm: 0 4px 12px rgba(15, 23, 42, 0.05);
    --auth-shadow-md: 0 15px 40px rgba(15, 23, 42, 0.08);
    --auth-shadow-lg: 0 30px 60px rgba(15, 23, 42, 0.1);
    --auth-shadow-accent: 0 15px 40px rgba(71, 85, 105, 0.2);
    
    /* Transitions */
    --auth-transition-fast: 0.2s ease;
    --auth-transition: 0.3s ease;
    --auth-transition-slow: 0.4s ease;
    --auth-ease-out: cubic-bezier(0.16, 1, 0.3, 1);
}

/* Back to App Button */
.back-to-app {
    position: fixed;
    top: var(--auth-space-md);
    left: var(--auth-space-md);
    z-index: 1000;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    font-family: var(--auth-font-body);
    font-size: 0.8rem;
    font-weight: 500;
    color: var(--auth-charcoal);
    background: var(--auth-warm-white);
    border: 1px solid var(--auth-border);
    border-radius: var(--auth-radius-full);
    text-decoration: none;
    box-shadow: var(--auth-shadow-sm);
    transition: all var(--auth-transition);
}

.back-to-app:hover {
    color: var(--auth-primary);
    border-color: var(--auth-primary);
    box-shadow: var(--auth-shadow-md);
    transform: translateX(-3px);
}

.back-to-app:focus {
    outline: 2px solid var(--auth-primary);
    outline-offset: 2px;
}

.back-to-app i {
    font-size: 1rem;
    transition: transform var(--auth-transition-fast);
}

.back-to-app:hover i {
    transform: translateX(-3px);
}

.back-to-app-text {
    display: none;
}

@media (min-width: 768px) {
    .back-to-app {
        padding: 0.6rem 1.25rem;
        font-size: 0.85rem;
    }
    
    .back-to-app-text {
        display: inline;
    }
}

@media (min-width: 1024px) {
    .back-to-app {
        top: var(--auth-space-lg);
        left: var(--auth-space-lg);
    }
}

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

.auth-page {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    background: var(--auth-cream);
    font-family: var(--auth-font-body);
    color: var(--auth-ink);
    -webkit-font-smoothing: antialiased;
}

.auth-container {
    flex: 1;
    display: flex;
    flex-direction: column;
    width: 100%;
    /* padding-top: var(--auth-navbar-height); */
}

.auth-main {
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    width: 100%;
    max-width: var(--auth-max-width);
    margin: 0 auto;
    padding: var(--auth-space-lg) var(--auth-container-padding);
}

.auth-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--auth-space-xl);
    width: 100%;
    align-items: center;
    justify-content: center;
}

@media (min-width: 1024px) {
    .auth-main { 
        padding: var(--auth-space-xl) var(--auth-space-lg);
        min-height: 100vh;
    }
    .auth-grid {
        grid-template-columns: 420px 1fr;
        gap: var(--auth-space-xl);
        align-items: center;
    }
}

/* Animations */
@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(30px); }
    to { opacity: 1; transform: translateY(0); }
}
@keyframes spin { to { transform: rotate(360deg); } }
@keyframes shake {
    0%, 100% { transform: translateX(0); }
    20%, 60% { transform: translateX(-6px); }
    40%, 80% { transform: translateX(6px); }
}
@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.6; }
}
@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-8px); }
}

/* Login Section */
.login-section {
    display: flex;
    flex-direction: column;
    animation: fadeInUp 0.8s var(--auth-ease-out);
}

.login-card {
    background: var(--auth-warm-white);
    border-radius: var(--auth-radius-md);
    box-shadow: var(--auth-shadow-lg);
    overflow: hidden;
    position: relative;
    display: flex;
    flex-direction: column;
    border: 1px solid var(--auth-border);
}

.login-card::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--auth-primary), var(--auth-accent-subtle), var(--auth-primary));
    background-size: 200% auto;
    animation: pulse 3s ease-in-out infinite;
}

.login-header {
    padding: var(--auth-space-lg) var(--auth-space-lg) var(--auth-space-md);
    text-align: center;
}

.login-header-icon {
    width: 64px; height: 64px;
    margin: 0 auto var(--auth-space-md);
    background: linear-gradient(135deg, var(--auth-user-light), transparent);
    border-radius: var(--auth-radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
}

.login-header-icon::after {
    content: '';
    position: absolute;
    inset: -4px;
    border-radius: inherit;
    border: 1.5px dashed var(--auth-border-hover);
    animation: spin 30s linear infinite;
}

.login-header-icon i { 
    font-size: 1.75rem; 
    color: var(--auth-primary);
}

.login-header h1 {
    font-family: var(--auth-font-display);
    font-size: clamp(1.25rem, 3vw, 1.5rem);
    font-weight: 500;
    color: var(--auth-ink);
    margin: 0 0 0.25rem;
    letter-spacing: -0.02em;
    line-height: 1.2;
}

.login-subtitle {
    font-size: 0.875rem;
    color: var(--auth-muted);
    margin: 0;
    line-height: 1.4;
}

.login-body { 
    padding: var(--auth-space-md) var(--auth-space-lg) var(--auth-space-lg); 
    flex: 1; 
}

/* Form Elements */
.form-group { margin-bottom: var(--auth-space-sm); }

.form-label {
    display: block;
    font-size: 0.8rem;
    font-weight: 500;
    color: var(--auth-ink);
    margin-bottom: 0.375rem;
    letter-spacing: 0.01em;
}

.form-control {
    width: 100%;
    padding: 0.875rem 1rem;
    font-family: var(--auth-font-body);
    font-size: 0.95rem;
    color: var(--auth-ink);
    background: var(--auth-cream);
    border: 1.5px solid var(--auth-border);
    border-radius: var(--auth-radius-sm);
    transition: all var(--auth-transition-fast);
}

.form-control::placeholder {
    color: var(--auth-muted);
    opacity: 0.7;
}

.form-control:hover {
    border-color: var(--auth-border-hover);
}

.form-control:focus {
    outline: none;
    border-color: var(--auth-primary);
    background: var(--auth-warm-white);
    box-shadow: 0 0 0 4px rgba(71, 85, 105, 0.1);
}

.form-control.is-invalid {
    border-color: var(--auth-danger);
    animation: shake 0.4s ease;
}

.input-with-icon { position: relative; }
.input-with-icon .form-control { padding-left: 2.75rem; }
.input-with-icon .input-icon {
    position: absolute;
    left: 1rem; top: 50%;
    transform: translateY(-50%);
    color: var(--auth-muted);
    pointer-events: none;
    transition: color var(--auth-transition-fast);
    font-size: 1rem;
}
.input-with-icon .form-control:focus + .input-icon,
.input-with-icon .form-control:focus ~ .input-icon { 
    color: var(--auth-primary); 
}

.password-wrapper { position: relative; }
.password-wrapper .form-control { padding-right: 3rem; }
.password-toggle {
    position: absolute;
    right: 1rem; top: 50%;
    transform: translateY(-50%);
    background: none; border: none; padding: 0.25rem;
    color: var(--auth-muted);
    cursor: pointer;
    transition: color var(--auth-transition-fast);
    border-radius: var(--auth-radius-sm);
}
.password-toggle:hover { color: var(--auth-primary); }
.password-toggle:focus { 
    outline: 2px solid var(--auth-primary);
    outline-offset: 2px;
}

.invalid-feedback {
    font-size: 0.8rem;
    color: var(--auth-danger);
    margin-top: 0.5rem;
    display: none;
}
.form-control.is-invalid + .invalid-feedback,
.password-wrapper .form-control.is-invalid ~ .invalid-feedback { display: block; }

.form-options {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--auth-space-sm);
    gap: var(--auth-space-xs);
}

.remember-me { 
    display: flex; 
    align-items: center; 
    gap: 0.375rem; 
}
.remember-me input[type="checkbox"] {
    width: 16px; height: 16px;
    accent-color: var(--auth-terracotta);
    cursor: pointer;
    border-radius: 3px;
}
.remember-me label {
    font-size: 0.8rem;
    color: var(--auth-charcoal);
    cursor: pointer;
    user-select: none;
}

.forgot-link {
    font-size: 0.8rem;
    font-weight: 500;
    color: var(--auth-primary);
    text-decoration: none;
    transition: color var(--auth-transition-fast);
}
.forgot-link:hover { 
    color: var(--auth-accent-hover); 
    text-decoration: underline;
}

/* Primary Button */
.btn-primary-login {
    width: 100%;
    padding: 1rem 1.5rem;
    font-family: var(--auth-font-body);
    font-size: 1rem;
    font-weight: 500;
    color: var(--auth-warm-white);
    background: var(--auth-primary);
    border: none;
    border-radius: var(--auth-radius-full);
    cursor: pointer;
    transition: all var(--auth-transition);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    position: relative;
    overflow: hidden;
}

.btn-primary-login:hover:not(:disabled) {
    background: var(--auth-accent-hover);
    transform: translateY(-3px);
    box-shadow: var(--auth-shadow-accent);
}

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

.btn-primary-login:disabled { 
    opacity: 0.65; 
    cursor: not-allowed; 
}

.btn-primary-login .spinner {
    width: 20px; height: 20px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-top-color: white;
    border-radius: 50%;
    animation: spin 0.7s linear infinite;
}

.btn-primary-login .btn-icon { 
    transition: transform var(--auth-transition-fast); 
}
.btn-primary-login:hover .btn-icon { 
    transform: translateX(4px); 
}

.btn-primary-login.btn-success {
    background: var(--auth-success);
}

/* Alerts */
.auth-alert {
    padding: 1rem;
    border-radius: var(--auth-radius-sm);
    margin-bottom: var(--auth-space-md);
    display: none;
    align-items: flex-start;
    gap: 0.75rem;
}
.auth-alert.show { display: flex; }

.auth-alert.alert-danger {
    background: rgba(239, 68, 68, 0.06);
    border: 1px solid rgba(239, 68, 68, 0.15);
    color: var(--auth-danger);
}
.auth-alert.alert-success {
    background: rgba(34, 197, 94, 0.06);
    border: 1px solid rgba(34, 197, 94, 0.15);
    color: var(--auth-success);
}
.auth-alert.alert-warning {
    background: rgba(245, 158, 11, 0.06);
    border: 1px solid rgba(245, 158, 11, 0.15);
    color: var(--auth-warning);
}
.auth-alert i { font-size: 1.125rem; flex-shrink: 0; margin-top: 0.125rem; }
.auth-alert-content { flex: 1; }
.auth-alert-title { font-weight: 600; font-size: 0.875rem; margin-bottom: 0.25rem; }
.auth-alert-message { font-size: 0.875rem; line-height: 1.5; opacity: 0.9; }

/* Login Footer */
.login-footer {
    padding: var(--auth-space-sm) var(--auth-space-md);
    background: var(--auth-cream);
    text-align: center;
    border-top: 1px solid var(--auth-border);
}
.login-footer p { 
    font-size: 0.8rem; 
    color: var(--auth-muted); 
    margin: 0; 
}
.login-footer a { 
    color: var(--auth-primary); 
    font-weight: 500;
    text-decoration: none;
}
.login-footer a:hover { 
    color: var(--auth-accent-hover);
    text-decoration: underline;
}

.trust-indicators {
    display: flex;
    justify-content: center;
    gap: var(--auth-space-sm);
    margin-top: var(--auth-space-xs);
    padding-top: var(--auth-space-xs);
    border-top: 1px dashed var(--auth-border);
}
.trust-item {
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
    font-size: 0.7rem;
    color: var(--auth-muted);
    letter-spacing: 0.02em;
}
.trust-item i { 
    color: var(--auth-secondary); 
    font-size: 0.75rem; 
}

/* Social Buttons */
.social-divider {
    display: flex;
    align-items: center;
    margin: var(--auth-space-sm) 0;
}
.social-divider::before, .social-divider::after {
    content: ''; flex: 1; height: 1px;
    background: var(--auth-border);
}
.social-divider span {
    padding: 0 var(--auth-space-xs);
    font-size: 0.7rem;
    color: var(--auth-muted);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    font-weight: 500;
}

.social-buttons { display: flex; gap: 0.5rem; }
.btn-social {
    flex: 1;
    padding: 0.6rem 0.75rem;
    font-family: var(--auth-font-body);
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--auth-ink);
    background: var(--auth-warm-white);
    border: 1.5px solid var(--auth-border);
    border-radius: var(--auth-radius-full);
    cursor: pointer;
    transition: all var(--auth-transition-fast);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
}
.btn-social:hover {
    background: var(--auth-cream);
    border-color: var(--auth-border-hover);
    transform: translateY(-2px);
}
.btn-social:focus {
    outline: 2px solid var(--auth-primary);
    outline-offset: 2px;
}

/* Register Section */
.register-section {
    display: flex;
    flex-direction: column;
    gap: var(--auth-space-md);
    animation: fadeInUp 0.8s var(--auth-ease-out) 0.1s backwards;
}

.register-section-header { 
    text-align: center; 
    padding-bottom: var(--auth-space-sm);
}
.register-section-header h2 {
    font-family: var(--auth-font-display);
    font-size: clamp(1.375rem, 3vw, 1.75rem);
    font-weight: 500;
    color: var(--auth-ink);
    margin: 0 0 0.5rem;
    letter-spacing: -0.01em;
}
.register-section-header p { 
    font-size: 0.9rem; 
    color: var(--auth-muted); 
    margin: 0;
    line-height: 1.5;
}

@media (min-width: 1024px) {
    .register-section-header { text-align: left; }
}

.register-cards {
    display: flex;
    flex-direction: column;
    gap: var(--auth-space-sm);
}

/* Register Card */
.register-card {
    background: var(--auth-warm-white);
    border-radius: var(--auth-radius-md);
    padding: var(--auth-space-sm);
    border: 1px solid var(--auth-border);
    transition: all var(--auth-transition);
    cursor: pointer;
    position: relative;
    overflow: hidden;
    display: flex;
    align-items: flex-start;
    gap: var(--auth-space-xs);
    text-decoration: none;
    margin: 0;
}

.register-card::before {
    content: '';
    position: absolute;
    top: 0; left: 0;
    width: 3px; height: 100%;
    background: var(--card-color, var(--auth-terracotta));
    transform: scaleY(0);
    transform-origin: top;
    transition: transform var(--auth-transition);
}

.register-card:hover {
    border-color: var(--card-color, var(--auth-terracotta));
    box-shadow: var(--auth-shadow-md);
    transform: translateY(-4px);
}
.register-card:hover::before { 
    transform: scaleY(1); 
}

.register-card:focus {
    outline: 2px solid var(--card-color, var(--auth-terracotta));
    outline-offset: 2px;
}

.register-card--user { 
    --card-color: var(--auth-user); 
    --card-bg: var(--auth-user-light); 
}
.register-card--reseller { 
    --card-color: var(--auth-reseller); 
    --card-bg: var(--auth-reseller-light); 
}
.register-card--manufacturer { 
    --card-color: var(--auth-manufacturer); 
    --card-bg: var(--auth-manufacturer-light); 
}

.register-card-icon {
    width: 44px; height: 44px; min-width: 44px;
    border-radius: var(--auth-radius-md);
    background: var(--card-bg, var(--auth-cream));
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--auth-transition);
}
.register-card-icon i { 
    font-size: 1.25rem; 
    color: var(--card-color, var(--auth-terracotta)); 
}
.register-card:hover .register-card-icon { 
    transform: scale(1.05); 
}

.register-card-content { flex: 1; min-width: 0; }
.register-card-title {
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--auth-ink);
    margin: 0 0 0.25rem;
    line-height: 1.3;
}
.register-card-subtitle {
    font-size: 0.8rem;
    color: var(--auth-muted);
    line-height: 1.4;
    margin: 0 0 0.5rem;
}
.register-card-features { 
    display: flex; 
    flex-wrap: wrap; 
    gap: 0.25rem; 
}
.feature-tag {
    font-size: 0.65rem;
    padding: 0.2rem 0.4rem;
    background: var(--card-bg, var(--auth-cream));
    color: var(--card-color, var(--auth-terracotta));
    border-radius: var(--auth-radius-full);
    font-weight: 500;
    letter-spacing: 0.02em;
    text-transform: uppercase;
}

.register-card-arrow {
    color: var(--auth-muted);
    transition: all var(--auth-transition);
    margin-left: auto;
    align-self: center;
    font-size: 1rem;
}
.register-card:hover .register-card-arrow {
    color: var(--card-color, var(--auth-terracotta));
    transform: translateX(6px);
}

/* Page Footer */
.page-footer {
    padding: var(--auth-space-sm) var(--auth-container-padding);
    border-top: 1px solid var(--auth-border);
    background: var(--auth-warm-white);
}
.footer-content {
    max-width: var(--auth-max-width);
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: var(--auth-space-sm);
}
.footer-copyright { 
    font-size: 0.8rem; 
    color: var(--auth-muted); 
}
.footer-links { 
    display: flex; 
    gap: var(--auth-space-md); 
}
.footer-links a { 
    font-size: 0.8rem; 
    color: var(--auth-muted);
    text-decoration: none;
    transition: color var(--auth-transition-fast);
}
.footer-links a:hover { 
    color: var(--auth-primary); 
}

/* ============================================
   MOBILE RESPONSIVE - 320px to 767px
   ============================================ */
@media (max-width: 767px) {
    :root {
        --auth-container-padding: 1rem;
        --auth-navbar-height: 60px;
    }
    
    .auth-main { 
        padding: var(--auth-space-sm) var(--auth-container-padding); 
    }
    
    .auth-grid {
        gap: var(--auth-space-lg);
    }
    
    .login-header { 
        padding: var(--auth-space-md) var(--auth-space-md) var(--auth-space-sm);
    }
    .login-header-icon {
        width: 50px; height: 50px;
    }
    .login-header h1 {
        font-size: 1.5rem;
    }
    
    .login-body { 
        padding: var(--auth-space-sm) var(--auth-space-md) var(--auth-space-md); 
    }
    
    .login-footer { 
        padding: var(--auth-space-sm) var(--auth-space-md); 
    }
    
    .form-options { 
        flex-direction: column; 
        align-items: flex-start;
        gap: 0.5rem;
    }
    
    .trust-indicators {
        gap: var(--auth-space-sm);
    }
    
    .register-section-header {
        padding-bottom: 0;
    }
    
    .register-card { 
        padding: var(--auth-space-md); 
    }
    .register-card-icon { 
        width: 48px; height: 48px; min-width: 48px; 
    }
    .register-card-icon i { 
        font-size: 1.25rem; 
    }
    .register-card-title {
        font-size: 1rem;
    }
    .register-card-subtitle {
        font-size: 0.8rem;
        margin-bottom: 0.5rem;
    }
    
    .footer-content { 
        flex-direction: column; 
        text-align: center;
        gap: 0.5rem;
    }
    .footer-links { 
        justify-content: center; 
        gap: var(--auth-space-md);
    }
}

/* ============================================
   TABLET - 768px to 1023px
   ============================================ */
@media (min-width: 768px) and (max-width: 1023px) {
    .auth-main {
        max-width: 600px;
    }
    
    .register-cards {
        display: grid;
        grid-template-columns: repeat(2, 1fr);
        gap: var(--auth-space-sm);
    }
    .register-cards > .register-card:last-child { 
        grid-column: span 2;
    }
}

/* ============================================
   LARGE SCREENS - 1440px+
   ============================================ */
@media (min-width: 1440px) {
    .auth-grid {
        grid-template-columns: 460px 1fr;
        gap: 4rem;
    }
}

/* ============================================
   ACCESSIBILITY & PREFERENCES
   ============================================ */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* High contrast mode support */
@media (prefers-contrast: high) {
    .login-card {
        border-width: 2px;
    }
    .register-card {
        border-width: 2px;
    }
    .form-control {
        border-width: 2px;
    }
}

/* Focus visible for keyboard navigation */
:focus-visible {
    outline: 2px solid var(--auth-primary);
    outline-offset: 2px;
}

/* Print styles */
@media print {
    .auth-page {
        background: white;
    }
    .social-buttons,
    .social-divider,
    .trust-indicators {
        display: none;
    }
}