/*
 * Modern Login Experience - Enterprise Grade
 * Incorporates best practices from:
 * - Mobile-first responsive design
 * - Micro-interactions for UX feedback
 * - Skeleton loading patterns
 * - WCAG 2.1 AA accessibility compliance
 * - CSS Custom Properties for theming
 */

/* ============================================
   CSS Custom Properties (Theming)
   ============================================ */
:root {
    /* Default Folio theme - overridden per app */
    --login-primary: #009688;
    --login-primary-dark: #00796b;
    --login-primary-light: #4db6ac;
    --login-primary-rgb: 0, 150, 136;

    /* Neutral palette */
    --login-bg: #f8fafc;
    --login-surface: #ffffff;
    --login-text-primary: #1e293b;
    --login-text-secondary: #64748b;
    --login-text-muted: #94a3b8;
    --login-border: #e2e8f0;
    --login-border-focus: var(--login-primary);

    /* Feedback colors */
    --login-error: #ef4444;
    --login-error-bg: #fef2f2;
    --login-success: #22c55e;
    --login-success-bg: #f0fdf4;
    --login-warning: #f59e0b;

    /* Spacing scale (8px base) */
    --space-1: 0.25rem;  /* 4px */
    --space-2: 0.5rem;   /* 8px */
    --space-3: 0.75rem;  /* 12px */
    --space-4: 1rem;     /* 16px */
    --space-5: 1.25rem;  /* 20px */
    --space-6: 1.5rem;   /* 24px */
    --space-8: 2rem;     /* 32px */
    --space-10: 2.5rem;  /* 40px */
    --space-12: 3rem;    /* 48px */
    --space-16: 4rem;    /* 64px */

    /* Typography scale */
    --text-xs: 0.75rem;
    --text-sm: 0.875rem;
    --text-base: 1rem;
    --text-lg: 1.125rem;
    --text-xl: 1.25rem;
    --text-2xl: 1.5rem;
    --text-3xl: 1.875rem;
    --text-4xl: 2.25rem;

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 250ms ease;
    --transition-slow: 350ms ease;

    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -2px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -4px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 8px 10px -6px rgba(0, 0, 0, 0.1);

    /* Border radius */
    --radius-sm: 0.25rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-full: 9999px;
}

/* Attache theme override */
.login-modern--attache {
    --login-primary: #2196f3;
    --login-primary-dark: #1976d2;
    --login-primary-light: #64b5f6;
    --login-primary-rgb: 33, 150, 243;
}

/* Reports/Sightlines theme override */
.login-modern--reports {
    --login-primary: #f97316;
    --login-primary-dark: #ea580c;
    --login-primary-light: #fb923c;
    --login-primary-rgb: 249, 115, 22;
}

/* ============================================
   Utility Classes
   ============================================ */

/* Screen-reader only - visually hidden but accessible */
.login-modern__sr-only {
    position: absolute !important;
    width: 1px !important;
    height: 1px !important;
    padding: 0 !important;
    margin: -1px !important;
    overflow: hidden !important;
    clip: rect(0, 0, 0, 0) !important;
    white-space: nowrap !important;
    border: 0 !important;
}

/* Skip link for keyboard navigation - hidden until focused */
.skip-link {
    position: absolute;
    top: -100%;
    left: 50%;
    transform: translateX(-50%);
    background: var(--login-primary, #2196f3);
    color: #fff;
    padding: var(--space-3, 0.75rem) var(--space-6, 1.5rem);
    border-radius: var(--radius-md, 8px);
    text-decoration: none;
    font-weight: 500;
    z-index: 10000;
    transition: top 0.2s ease;
}

.skip-link:focus {
    top: var(--space-4, 1rem);
    outline: 2px solid var(--login-primary-dark, #1976d2);
    outline-offset: 2px;
}

/* ============================================
   Base Reset & Typography
   ============================================ */
.login-modern *,
.login-modern *::before,
.login-modern *::after {
    box-sizing: border-box;
}

.login-modern {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    font-size: var(--text-base);
    line-height: 1.5;
    color: var(--login-text-primary);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    background-color: var(--login-bg);
    min-height: 100vh;
    margin: 0;
    padding: 0;
}

/* ============================================
   Layout - CSS Grid for main structure
   ============================================ */
.login-modern__container {
    display: grid;
    grid-template-columns: 1fr;
    min-height: 100vh;
}

@media (min-width: 768px) {
    .login-modern__container {
        grid-template-columns: 1fr 1fr;
    }
}

@media (min-width: 1200px) {
    .login-modern__container {
        grid-template-columns: 55% 45%;
    }
}

/* ============================================
   Image Panel (Left side)
   ============================================ */
.login-modern__image-panel {
    position: relative;
    display: none;
    overflow: hidden;
    background-color: var(--login-primary);
}

@media (min-width: 768px) {
    .login-modern__image-panel {
        display: block;
    }
}

.login-modern__image-bg {
    position: absolute;
    inset: 0;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    transition: opacity 1s ease-in-out;
}

.login-modern__image-bg::after {
    content: '';
    position: absolute;
    inset: 0;
    background:
        linear-gradient(
            to bottom,
            transparent 60%,
            rgba(0, 0, 0, 0.15) 100%
        ),
        linear-gradient(
            135deg,
            rgba(var(--login-primary-rgb), 0.82) 0%,
            rgba(var(--login-primary-rgb), 0.55) 50%,
            rgba(0, 0, 0, 0.35) 100%
        );
}

.login-modern__image-content {
    position: relative;
    z-index: 10;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    height: 100%;
    padding: var(--space-10);
    color: white;
}

.login-modern__brand {
    display: flex;
    align-items: center;
    gap: var(--space-3);
}

.login-modern__brand-logo {
    width: 48px;
    height: 48px;
    object-fit: contain;
    filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.15));
}

.login-modern__brand-name {
    font-size: var(--text-xl);
    font-weight: 600;
    letter-spacing: -0.025em;
}

.login-modern__tagline {
    max-width: 440px;
}

/* Tagline carousel container */
.login-modern__tagline-carousel {
    position: relative;
    min-height: 140px;
}

/* Individual tagline items - smooth crossfade */
.login-modern__tagline-item {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    opacity: 0;
    pointer-events: none;
    transition: opacity 1s ease;
}

/* Title - gentle fade with subtle movement */
.login-modern__tagline-item .login-modern__tagline-title {
    opacity: 0;
    transform: translateY(4px);
    transition: opacity 1.2s ease,
                transform 1.2s ease;
}

/* Text - slightly delayed for cascade effect */
.login-modern__tagline-item .login-modern__tagline-text {
    opacity: 0;
    transform: translateY(3px);
    transition: opacity 1.2s ease 0.1s,
                transform 1.2s ease 0.1s;
}

/* Active state - smooth reveal */
.login-modern__tagline-item--active {
    position: relative;
    opacity: 1;
    pointer-events: auto;
}

.login-modern__tagline-item--active .login-modern__tagline-title {
    opacity: 1;
    transform: translateY(0);
}

.login-modern__tagline-item--active .login-modern__tagline-text {
    opacity: 0.9;
    transform: translateY(0);
}

.login-modern__tagline-title {
    font-size: clamp(var(--text-2xl), 4vw, var(--text-4xl));
    font-weight: 800;
    line-height: 1.2;
    margin: 0 0 var(--space-4);
    letter-spacing: -0.025em;
}

.login-modern__tagline-text {
    font-size: var(--text-lg);
    margin: 0;
    line-height: 1.6;
    letter-spacing: 0.01em;
}

/* Reduced motion preference */
@media (prefers-reduced-motion: reduce) {
    .login-modern__tagline-item,
    .login-modern__tagline-item .login-modern__tagline-title,
    .login-modern__tagline-item .login-modern__tagline-text {
        transition: opacity 0.5s ease;
        transform: none;
    }
}

.login-modern__image-footer {
    font-size: var(--text-sm);
    opacity: 0.7;
}

/* Image carousel indicators */
.login-modern__carousel-indicators {
    display: flex;
    gap: var(--space-2);
    margin-top: var(--space-6);
}

.login-modern__carousel-dot {
    width: 8px;
    height: 10px;
    border-radius: var(--radius-full);
    background-color: rgba(255, 255, 255, 0.4);
    border: none;
    padding: 0;
    cursor: pointer;
    transition: all var(--transition-base);
}

.login-modern__carousel-dot--active {
    width: 28px;
    background-color: white;
    box-shadow: 0 0 6px rgba(255, 255, 255, 0.4);
}

/* ============================================
   Form Panel (Right side)
   ============================================ */
.login-modern__form-panel {
    position: relative;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    padding: var(--space-6);
    padding-bottom: var(--space-8);
    background: radial-gradient(ellipse at 50% 30%, var(--login-surface) 0%, #f5f7fa 100%);
    min-height: 100vh;
    min-height: 100dvh; /* Dynamic viewport height for mobile browsers */
}

/* Subtle geometric dot grid pattern overlay */
.login-modern__form-panel::before {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(circle, #94a3b8 0.8px, transparent 0.8px);
    background-size: 22px 22px;
    opacity: 0.12;
    pointer-events: none;
    z-index: 0;
}

@media (min-width: 768px) {
    .login-modern__form-panel {
        padding: var(--space-10);
        padding-bottom: var(--space-16);
        border-left: 1px solid rgba(var(--login-primary-rgb), 0.08);
    }
}

.login-modern__form-wrapper {
    position: relative;
    z-index: 1;
    width: 100%;
    max-width: 420px;
}

/* Elevated card effect on tablets and up */
@media (min-width: 576px) and (max-width: 767px) {
    .login-modern__form-wrapper {
        background-color: var(--login-surface);
        padding: var(--space-8);
        border-radius: var(--radius-xl);
        box-shadow: 0 4px 24px rgba(0, 0, 0, 0.08),
                    0 1px 4px rgba(0, 0, 0, 0.04);
    }
}

/* Mobile brand header */
.login-modern__mobile-brand {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-3);
    margin-bottom: var(--space-6);
    padding: var(--space-3) var(--space-4);
    background: linear-gradient(135deg, var(--login-primary) 0%, var(--login-primary-dark) 100%);
    border-radius: var(--radius-lg);
    color: white;
    box-shadow: 0 4px 12px rgba(var(--login-primary-rgb), 0.3);
}

@media (min-width: 768px) {
    .login-modern__mobile-brand {
        display: none;
    }
}

/* Compact mobile brand on very small screens */
@media (max-width: 359px) {
    .login-modern__mobile-brand {
        margin-bottom: var(--space-4);
        padding: var(--space-2) var(--space-3);
        gap: var(--space-2);
    }

    .login-modern__mobile-brand-logo {
        width: 32px;
        height: 32px;
    }

    .login-modern__mobile-brand-name {
        font-size: var(--text-base);
    }
}

.login-modern__mobile-brand-logo {
    width: 36px;
    height: 36px;
    flex-shrink: 0;
}

.login-modern__mobile-brand-name {
    font-size: var(--text-base);
    font-weight: 600;
    line-height: 1.3;
    text-align: center;
}

/* ============================================
   Form Header
   ============================================ */
.login-modern__header {
    text-align: center;
    margin-bottom: var(--space-8);
}

.login-modern__title {
    font-size: var(--text-2xl);
    font-weight: 700;
    color: var(--login-text-primary);
    margin: 0 0 var(--space-3);
    letter-spacing: -0.03em;
    padding-bottom: var(--space-3);
    position: relative;
}

.login-modern__title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 40px;
    height: 3px;
    background: linear-gradient(90deg, var(--login-primary-light), var(--login-primary));
    border-radius: 2px;
}

.login-modern__subtitle {
    font-size: var(--text-base);
    font-weight: 300;
    color: var(--login-text-secondary);
    margin: 0;
}

/* ============================================
   Alert Messages - Elegant & Subtle Design
   ============================================ */
.login-modern__alert {
    position: relative;
    display: flex;
    align-items: center;
    gap: var(--space-3);
    padding: var(--space-3) var(--space-4);
    border-radius: var(--radius-md);
    margin-bottom: var(--space-5);
    animation: alertFadeIn 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    border: none;
    border-left: 3px solid transparent;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.08);
}

@keyframes alertFadeIn {
    from {
        opacity: 0;
        transform: translateY(-8px) scale(0.98);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

@keyframes alertFadeOut {
    from {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
    to {
        opacity: 0;
        transform: translateY(-8px) scale(0.98);
    }
}

.login-modern__alert.dismissing {
    animation: alertFadeOut 0.25s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

/* Success Alert - Subtle green accent */
.login-modern__alert--success {
    background-color: #f8fdf9;
    border-left-color: #22c55e;
    color: #166534;
}

.login-modern__alert--success .login-modern__alert-icon {
    color: #22c55e;
}

/* Auto-dismiss progress indicator for success */
.login-modern__alert--success::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, #22c55e 0%, #86efac 100%);
    border-radius: 0 0 var(--radius-md) var(--radius-md);
    animation: progressShrink 5s linear forwards;
    transform-origin: left;
}

@keyframes progressShrink {
    from { transform: scaleX(1); }
    to { transform: scaleX(0); }
}

.login-modern__alert--success:hover::after {
    animation-play-state: paused;
}

/* Error Alert - Subtle red accent */
.login-modern__alert--error {
    background-color: #fef8f8;
    border-left-color: #ef4444;
    color: #7f1d1d;
}

.login-modern__alert--error .login-modern__alert-icon {
    color: #ef4444;
}

/* Warning Alert - For informational warnings */
.login-modern__alert--warning {
    background-color: #fffbf5;
    border-left-color: #f59e0b;
    color: #78350f;
}

.login-modern__alert--warning .login-modern__alert-icon {
    color: #f59e0b;
}

/* Info Alert - Neutral information */
.login-modern__alert--info {
    background-color: #f8fafc;
    border-left-color: #3b82f6;
    color: #1e40af;
}

.login-modern__alert--info .login-modern__alert-icon {
    color: #3b82f6;
}

/* Alert Icon */
.login-modern__alert-icon,
.login-modern__alert-icon[data-lucide] {
    flex-shrink: 0;
    width: 18px;
    height: 18px;
    opacity: 0.9;
}

/* Alert Content */
.login-modern__alert-content {
    flex: 1;
    font-size: 0.875rem;
    line-height: 1.5;
    font-weight: 450;
}

.login-modern__alert-content strong {
    font-weight: 600;
}

/* Close Button - Minimal & Subtle */
.login-modern__alert-close {
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    background: none;
    border: none;
    width: 24px;
    height: 24px;
    padding: 0;
    cursor: pointer;
    opacity: 0.4;
    transition: opacity 0.2s ease, transform 0.15s ease;
    border-radius: var(--radius-sm);
}

.login-modern__alert-close svg,
.login-modern__alert-close [data-lucide] {
    width: 14px;
    height: 14px;
}

.login-modern__alert-close:hover {
    opacity: 0.8;
    transform: scale(1.1);
}

.login-modern__alert-close:active {
    transform: scale(0.95);
}

/* ============================================
   Form Styles
   ============================================ */
.login-modern__form {
    display: flex;
    flex-direction: column;
    gap: var(--space-6);
}

/* Input Group with Floating Label */
.login-modern__input-group {
    position: relative;
}

/* Material-style focus underline */
.login-modern__input-group::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 0;
    height: 2px;
    background-color: var(--login-primary);
    transition: width 0.25s cubic-bezier(0.4, 0, 0.2, 1),
                left 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    border-radius: 0 0 var(--radius-md) var(--radius-md);
}

.login-modern__input-group:focus-within::after {
    width: 100%;
    left: 0;
}

.login-modern__input {
    width: 100%;
    height: 56px;
    padding: 24px var(--space-4) 8px;
    padding-right: 52px;
    font-size: var(--text-base);
    font-family: inherit;
    font-weight: 400;
    color: var(--login-text-primary);
    background-color: var(--login-surface);
    border: 1.5px solid var(--login-border);
    border-radius: 10px;
    outline: none;
    transition: border-color 0.2s cubic-bezier(0.4, 0, 0.2, 1),
                box-shadow 0.2s cubic-bezier(0.4, 0, 0.2, 1),
                background-color 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    -webkit-appearance: none;
    appearance: none;
}

.login-modern__input:hover:not(:focus):not(:disabled) {
    border-color: #cbd5e1;
    background-color: #fafbfc;
}

.login-modern__input:focus {
    border-color: var(--login-primary);
    background-color: rgba(var(--login-primary-rgb), 0.02);
    box-shadow: 0 0 0 3px rgba(var(--login-primary-rgb), 0.12);
}

.login-modern__input::placeholder {
    color: transparent;
}

.login-modern__input:focus::placeholder {
    color: var(--login-text-muted);
    opacity: 0.7;
}

/* Autofill styling */
.login-modern__input:-webkit-autofill,
.login-modern__input:-webkit-autofill:hover,
.login-modern__input:-webkit-autofill:focus {
    -webkit-text-fill-color: var(--login-text-primary);
    -webkit-box-shadow: 0 0 0px 1000px var(--login-surface) inset;
    transition: background-color 5000s ease-in-out 0s;
}

/* Floating Label */
.login-modern__label {
    position: absolute;
    left: var(--space-4);
    top: 50%;
    transform: translateY(-50%);
    font-size: var(--text-base);
    font-weight: 400;
    color: var(--login-text-secondary);
    pointer-events: none;
    transition: all var(--transition-fast) cubic-bezier(0.4, 0, 0.2, 1);
    background-color: transparent;
    padding: 0 2px;
    letter-spacing: 0.01em;
}

.login-modern__input:focus ~ .login-modern__label,
.login-modern__input:not(:placeholder-shown) ~ .login-modern__label {
    top: 12px;
    transform: translateY(0);
    font-size: 11px;
    font-weight: 500;
    color: var(--login-primary);
    background-color: var(--login-surface);
    letter-spacing: 0.02em;
}

/* Label color when not focused but has value */
.login-modern__input:not(:focus):not(:placeholder-shown) ~ .login-modern__label {
    color: var(--login-text-secondary);
}

/* Input Icon */
.login-modern__input-icon,
.login-modern__input-icon[data-lucide] {
    position: absolute;
    right: var(--space-4);
    top: 50%;
    transform: translateY(-50%);
    width: 20px;
    height: 20px;
    color: var(--login-text-muted);
    pointer-events: none;
    transition: color var(--transition-fast);
    opacity: 0.6;
}

.login-modern__input:focus ~ .login-modern__input-icon,
.login-modern__input:focus ~ [data-lucide].login-modern__input-icon {
    color: var(--login-primary);
    opacity: 1;
}

/* Password Toggle Button */
.login-modern__password-toggle {
    position: absolute;
    right: 12px;
    top: 50%;
    transform: translateY(-50%);
    width: 36px;
    height: 36px;
    background: transparent;
    border: none;
    padding: 0;
    cursor: pointer;
    color: var(--login-text-muted);
    transition: color var(--transition-fast),
                background-color var(--transition-fast);
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-sm);
    opacity: 0.7;
}

.login-modern__password-toggle:hover {
    color: var(--login-text-secondary);
    background-color: rgba(0, 0, 0, 0.04);
    opacity: 1;
}

.login-modern__password-toggle:focus {
    outline: none;
    box-shadow: 0 0 0 2px var(--login-primary);
    opacity: 1;
}

.login-modern__password-toggle:focus-visible {
    outline: none;
    box-shadow: 0 0 0 2px var(--login-primary);
}

.login-modern__password-toggle:active {
    background-color: rgba(0, 0, 0, 0.08);
}

/* Password toggle Lucide icons */
.login-modern__password-toggle [data-lucide],
.login-modern__password-toggle .login-modern__icon-show,
.login-modern__password-toggle .login-modern__icon-hide {
    width: 20px;
    height: 20px;
}

/* Input Validation States */
.login-modern__input-group--error .login-modern__input {
    border-color: var(--login-error);
    background-color: #fefafa;
}

.login-modern__input-group--error .login-modern__input:focus {
    box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.12);
}

.login-modern__input-group--error .login-modern__label,
.login-modern__input-group--error .login-modern__input:focus ~ .login-modern__label,
.login-modern__input-group--error .login-modern__input:not(:placeholder-shown) ~ .login-modern__label {
    color: var(--login-error);
}

.login-modern__input-group--success .login-modern__input {
    border-color: var(--login-success);
}

.login-modern__input-group--success .login-modern__input:focus {
    box-shadow: 0 0 0 3px rgba(34, 197, 94, 0.12);
}

/* Success underline color */
.login-modern__input-group--success::after {
    background-color: var(--login-success);
}

/* Error underline color */
.login-modern__input-group--error::after {
    background-color: var(--login-error);
}

.login-modern__error-message {
    display: flex;
    align-items: center;
    gap: 6px;
    margin-top: 8px;
    font-size: 13px;
    font-weight: 450;
    color: var(--login-error);
    animation: errorSlideIn 0.2s ease-out;
}

.login-modern__error-message svg {
    flex-shrink: 0;
    opacity: 0.85;
}

@keyframes errorSlideIn {
    from {
        opacity: 0;
        transform: translateY(-4px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ============================================
   Checkbox / Remember Me
   ============================================ */
.login-modern__options {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: var(--space-3) var(--space-4);
    margin-top: -4px;
}

/* Prevent overlap on narrow screens */
@media (max-width: 380px) {
    .login-modern__options {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--space-2);
    }

    .login-modern__options .login-modern__link {
        align-self: flex-start;
        margin-top: var(--space-1);
    }
}

.login-modern__checkbox-group {
    display: flex;
    align-items: center;
    gap: 10px;
    min-height: 44px; /* Minimum touch target */
}

.login-modern__checkbox {
    position: relative;
    width: 20px;
    height: 20px;
    appearance: none;
    -webkit-appearance: none;
    background-color: var(--login-surface);
    border: 2px solid #cbd5e1;
    border-radius: 6px;
    cursor: pointer;
    transition: background-color 0.2s cubic-bezier(0.4, 0, 0.2, 1),
                border-color 0.2s cubic-bezier(0.4, 0, 0.2, 1),
                box-shadow 0.2s cubic-bezier(0.4, 0, 0.2, 1),
                transform 0.15s cubic-bezier(0.4, 0, 0.2, 1);
    flex-shrink: 0;
}

.login-modern__checkbox:hover {
    border-color: var(--login-primary);
    background-color: rgba(var(--login-primary-rgb), 0.06);
}

.login-modern__checkbox:focus {
    outline: none;
    box-shadow: 0 0 0 3px rgba(var(--login-primary-rgb), 0.2);
    border-color: var(--login-primary);
}

.login-modern__checkbox:focus-visible {
    outline: none;
    box-shadow: 0 0 0 3px rgba(var(--login-primary-rgb), 0.2);
    border-color: var(--login-primary);
}

.login-modern__checkbox:active {
    transform: scale(0.92);
}

.login-modern__checkbox:checked {
    background-color: var(--login-primary);
    border-color: var(--login-primary);
    animation: checkboxPop 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

@keyframes checkboxPop {
    0% { transform: scale(1); }
    50% { transform: scale(1.15); }
    100% { transform: scale(1); }
}

.login-modern__checkbox:checked:hover {
    background-color: var(--login-primary-dark);
    border-color: var(--login-primary-dark);
}

/* Animated checkmark using SVG */
.login-modern__checkbox::after {
    content: '';
    position: absolute;
    left: 5px;
    top: 2px;
    width: 6px;
    height: 10px;
    border: solid white;
    border-width: 0 2.5px 2.5px 0;
    transform: rotate(45deg) scale(0);
    opacity: 0;
    transition: transform 0.2s cubic-bezier(0.4, 0, 0.2, 1),
                opacity 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

.login-modern__checkbox:checked::after {
    transform: rotate(45deg) scale(1);
    opacity: 1;
}

.login-modern__checkbox-label {
    font-size: 14px;
    font-weight: 400;
    color: var(--login-text-secondary);
    cursor: pointer;
    user-select: none;
    line-height: 1.4;
}

.login-modern__checkbox-label:hover {
    color: var(--login-text-primary);
}

/* ============================================
   Submit Button
   ============================================ */
.login-modern__submit {
    position: relative;
    width: 100%;
    height: 54px;
    padding: 0 var(--space-6);
    font-size: 15px;
    font-weight: 600;
    font-family: inherit;
    letter-spacing: 0.03em;
    color: white;
    background: linear-gradient(160deg, var(--login-primary-light) 0%, var(--login-primary) 30%, var(--login-primary-dark) 100%);
    border: none;
    border-radius: 12px;
    cursor: pointer;
    overflow: hidden;
    transition: transform 0.15s cubic-bezier(0.4, 0, 0.2, 1),
                box-shadow 0.2s cubic-bezier(0.4, 0, 0.2, 1),
                filter 0.2s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    margin-top: var(--space-2);
    -webkit-tap-highlight-color: transparent;
    box-shadow: 0 2px 8px rgba(var(--login-primary-rgb), 0.25),
                inset 0 1px 0 rgba(255, 255, 255, 0.15);
}

.login-modern__submit:hover:not(:disabled) {
    transform: translateY(-1px);
    box-shadow: 0 6px 20px rgba(var(--login-primary-rgb), 0.4);
    filter: brightness(1.05);
}

.login-modern__submit:active:not(:disabled) {
    transform: translateY(0) scale(0.98);
    box-shadow: 0 2px 8px rgba(var(--login-primary-rgb), 0.3);
    filter: brightness(0.95);
}

.login-modern__submit:focus {
    outline: none;
    box-shadow: 0 0 0 3px rgba(var(--login-primary-rgb), 0.35),
                0 4px 16px rgba(var(--login-primary-rgb), 0.3);
}

.login-modern__submit:focus-visible {
    outline: none;
    box-shadow: 0 0 0 3px rgba(var(--login-primary-rgb), 0.35),
                0 4px 16px rgba(var(--login-primary-rgb), 0.3);
}

.login-modern__submit:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    background: #9ca3af;
    box-shadow: none;
    filter: none;
}

/* Ripple effect container */
.login-modern__submit::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.3) 0%, transparent 70%);
    border-radius: 50%;
    transform: translate(-50%, -50%);
    opacity: 0;
}

.login-modern__submit:active:not(:disabled)::after {
    width: 300px;
    height: 300px;
    opacity: 1;
    transition: width 0.4s ease-out, height 0.4s ease-out, opacity 0.4s ease-out;
}

/* Button Loading State */
.login-modern__submit--loading {
    pointer-events: none;
    filter: brightness(0.9);
}

.login-modern__submit--loading .login-modern__submit-text {
    opacity: 0;
    transform: scale(0.9);
}

.login-modern__spinner {
    position: absolute;
    width: 22px;
    height: 22px;
    border: 2.5px solid rgba(255, 255, 255, 0.3);
    border-top-color: white;
    border-radius: 50%;
    animation: buttonSpin 0.8s cubic-bezier(0.4, 0, 0.2, 1) infinite;
}

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

/* Subtle shine sweep on hover */
.login-modern__submit::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 50%;
    height: 100%;
    background: linear-gradient(
        90deg,
        transparent 0%,
        rgba(255, 255, 255, 0.2) 50%,
        transparent 100%
    );
    transform: skewX(-20deg);
    transition: left 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.login-modern__submit:hover:not(:disabled)::before {
    left: 150%;
}

/* Remove animations for reduced motion preference */
@media (prefers-reduced-motion: reduce) {
    .login-modern__submit::before,
    .login-modern__submit::after {
        display: none;
    }

    .login-modern__submit {
        transition: none;
    }
}

/* ============================================
   Links
   ============================================ */
.login-modern__link {
    font-size: 14px;
    font-weight: 500;
    color: var(--login-primary);
    text-decoration: none;
    transition: color var(--transition-fast);
    padding: 4px 2px;
    margin: -4px -2px;
    border-radius: 4px;
    min-height: 44px;
    display: inline-flex;
    align-items: center;
}

.login-modern__options .login-modern__link {
    text-decoration: underline;
    text-decoration-color: rgba(var(--login-primary-rgb), 0.3);
    text-underline-offset: 3px;
}

.login-modern__link:hover {
    color: var(--login-primary-dark);
    text-decoration: underline;
    text-decoration-color: currentColor;
    text-underline-offset: 3px;
}

.login-modern__link:focus {
    outline: none;
    box-shadow: 0 0 0 2px rgba(var(--login-primary-rgb), 0.25);
    text-decoration: none;
}

.login-modern__link:focus-visible {
    outline: none;
    box-shadow: 0 0 0 2px rgba(var(--login-primary-rgb), 0.25);
}

.login-modern__link:active {
    color: var(--login-primary-dark);
}

/* ============================================
   Footer Links
   ============================================ */
.login-modern__footer {
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-4);
    margin-top: var(--space-8);
    padding-top: var(--space-6);
    border-top: none;
}

.login-modern__footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 10%;
    right: 10%;
    height: 1px;
    background: linear-gradient(90deg, transparent 0%, var(--login-border) 30%, var(--login-border) 70%, transparent 100%);
}

.login-modern__footer-text {
    font-size: var(--text-sm);
    color: var(--login-text-secondary);
    margin: 0;
}

.login-modern__footer-links {
    display: flex;
    align-items: center;
    gap: var(--space-4);
    flex-wrap: wrap;
    justify-content: center;
}

.login-modern__footer-divider {
    color: var(--login-border);
}

/* ============================================
   Skeleton Loading States
   ============================================ */
.login-modern__skeleton {
    position: relative;
    overflow: hidden;
    background-color: var(--login-border);
    border-radius: var(--radius-md);
}

.login-modern__skeleton::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(
        90deg,
        transparent 0%,
        rgba(255, 255, 255, 0.4) 50%,
        transparent 100%
    );
    animation: shimmer 1.5s infinite;
}

@keyframes shimmer {
    0% { transform: translateX(-100%); }
    100% { transform: translateX(100%); }
}

.login-modern__skeleton--title {
    width: 60%;
    height: 32px;
    margin: 0 auto var(--space-2);
}

.login-modern__skeleton--subtitle {
    width: 80%;
    height: 20px;
    margin: 0 auto;
}

.login-modern__skeleton--input {
    width: 100%;
    height: 56px;
}

.login-modern__skeleton--button {
    width: 100%;
    height: 52px;
}

/* ============================================
   Password Strength Indicator
   ============================================ */
.login-modern__password-strength {
    display: flex;
    gap: var(--space-1);
    margin-top: var(--space-2);
}

.login-modern__password-strength-bar {
    flex: 1;
    height: 4px;
    background-color: var(--login-border);
    border-radius: var(--radius-full);
    transition: background-color var(--transition-base);
}

.login-modern__password-strength--weak .login-modern__password-strength-bar:nth-child(1) {
    background-color: var(--login-error);
}

.login-modern__password-strength--medium .login-modern__password-strength-bar:nth-child(1),
.login-modern__password-strength--medium .login-modern__password-strength-bar:nth-child(2) {
    background-color: var(--login-warning);
}

.login-modern__password-strength--strong .login-modern__password-strength-bar {
    background-color: var(--login-success);
}

.login-modern__password-strength-text {
    font-size: var(--text-xs);
    color: var(--login-text-muted);
    margin-top: var(--space-1);
}

/* ============================================
   Accessibility Enhancements
   ============================================ */
@media (prefers-reduced-motion: reduce) {
    .login-modern *,
    .login-modern *::before,
    .login-modern *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

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

/* Screen reader only content */
.login-modern__sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* ============================================
   Help Panel (Info sidebar)
   ============================================ */
.login-modern__help-trigger {
    position: fixed;
    right: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 44px;
    height: 44px;
    background-color: var(--login-primary);
    border: none;
    border-radius: var(--radius-lg) 0 0 var(--radius-lg);
    color: white;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-lg);
    transition: all var(--transition-base);
    z-index: 100;
}

.login-modern__help-trigger:hover {
    width: 52px;
    background-color: var(--login-primary-dark);
}

.login-modern__help-trigger [data-lucide] {
    width: 24px;
    height: 24px;
}

.login-modern__help-close {
    position: absolute;
    top: var(--space-4);
    right: var(--space-4);
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--login-bg);
    border: 1px solid var(--login-border);
    border-radius: var(--radius-full);
    cursor: pointer;
    color: var(--login-text-secondary);
    transition: all var(--transition-fast);
    z-index: 10;
}

.login-modern__help-close:hover {
    background-color: var(--login-error-bg);
    border-color: var(--login-error);
    color: var(--login-error);
}

.login-modern__help-close:focus {
    outline: none;
    box-shadow: 0 0 0 3px rgba(var(--login-primary-rgb), 0.2);
}

.login-modern__help-close [data-lucide] {
    width: 20px;
    height: 20px;
}

.login-modern__help-panel {
    position: fixed;
    right: -550px;
    top: 0;
    width: 550px;
    max-width: 90vw;
    height: 100vh;
    background-color: var(--login-surface);
    box-shadow: -4px 0 24px rgba(0, 0, 0, 0.15);
    transition: right var(--transition-slow);
    z-index: 200;
    display: flex;
    flex-direction: column;
}

.login-modern__help-panel--open {
    right: 0;
}

/* Help panel content area - optimized for PDF display */
.login-modern__help-panel #divHELP {
    flex: 1;
    padding: var(--space-16) var(--space-6) var(--space-6);
    overflow-y: auto;
    display: flex;
    flex-direction: column;
}

.login-modern__help-panel #divHELP iframe,
.login-modern__help-panel #divHELP embed,
.login-modern__help-panel #divHELP object {
    flex: 1;
    width: 100%;
    min-height: 500px;
    height: calc(100vh - 100px);
    border: 1px solid var(--login-border);
    border-radius: var(--radius-md);
}

.login-modern__help-panel #divHELP .pdf-container,
.login-modern__help-panel #divHELP .help-content {
    flex: 1;
    display: flex;
    flex-direction: column;
}

.login-modern__help-overlay {
    position: fixed;
    inset: 0;
    background-color: rgba(0, 0, 0, 0.5);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-base);
    z-index: 150;
}

.login-modern__help-overlay--visible {
    opacity: 1;
    visibility: visible;
}

/* ============================================
   Powered By Footer
   ============================================ */
.login-modern__powered-by {
    position: relative;
    z-index: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-3);
    font-size: 14px;
    font-weight: 500;
    color: var(--login-text-secondary);
    letter-spacing: 0.01em;
    margin-top: auto;
    padding-top: var(--space-6);
}

.login-modern__powered-by-logo {
    width: 28px;
    height: 28px;
    opacity: 0.6;
    transition: opacity var(--transition-fast);
}

.login-modern__powered-by:hover .login-modern__powered-by-logo {
    opacity: 1;
}

/* Desktop: Position in bottom-left of form panel (avoids reCAPTCHA badge overlap) */
@media (min-width: 768px) {
    .login-modern__powered-by {
        position: absolute;
        bottom: var(--space-6);
        left: var(--space-6);
        right: auto;
        margin-top: 0;
        padding-top: 0;
        font-size: 13px;
        color: var(--login-text-muted);
        background-color: rgba(255, 255, 255, 0.9);
        padding: var(--space-2) var(--space-3);
        border-radius: var(--radius-md);
        box-shadow: 0 1px 4px rgba(0, 0, 0, 0.06);
        backdrop-filter: blur(4px);
        -webkit-backdrop-filter: blur(4px);
    }

    .login-modern__powered-by-logo {
        width: 24px;
        height: 24px;
    }
}

/* ============================================
   Google reCAPTCHA Badge Styling
   ============================================ */
/* Reposition reCAPTCHA badge to avoid overlap and improve aesthetics */
.grecaptcha-badge {
    z-index: 100;
}

/* On mobile, ensure reCAPTCHA doesn't overlap content */
@media (max-width: 767px) {
    .grecaptcha-badge {
        bottom: 70px !important;
    }
}

/* ============================================
   Print Styles
   ============================================ */
@media print {
    .login-modern__image-panel,
    .login-modern__help-trigger {
        display: none !important;
    }

    .login-modern__form-panel {
        width: 100%;
    }
}

/* ============================================
   Exceptional Responsive Form Behavior
   ============================================ */

/* Extra Small Devices (< 360px) - Compact phones */
@media (max-width: 359px) {
    .login-modern__form-wrapper {
        padding: 0 var(--space-2);
    }

    .login-modern__header {
        margin-bottom: var(--space-5);
    }

    .login-modern__title {
        font-size: 20px;
    }

    .login-modern__subtitle {
        font-size: 13px;
    }

    .login-modern__form {
        gap: var(--space-4);
    }

    .login-modern__input {
        height: 50px;
        font-size: 16px; /* Prevents iOS zoom */
    }

    .login-modern__submit {
        height: 48px;
        font-size: 15px;
    }

    .login-modern__options {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--space-3);
    }

    .login-modern__footer {
        margin-top: var(--space-6);
        padding-top: var(--space-4);
    }
}

/* Small Devices (360px - 479px) - Standard phones */
@media (min-width: 360px) and (max-width: 479px) {
    .login-modern__form-panel {
        padding: var(--space-5);
    }

    .login-modern__form-wrapper {
        max-width: 100%;
    }

    .login-modern__input {
        height: 52px;
        font-size: 16px; /* Prevents iOS zoom */
    }

    .login-modern__submit {
        height: 50px;
    }
}

/* Medium Phones (480px - 575px) */
@media (min-width: 480px) and (max-width: 575px) {
    .login-modern__form-panel {
        padding: var(--space-6);
    }

    .login-modern__form-wrapper {
        max-width: 400px;
    }
}

/* Small Tablets / Large Phones (576px - 767px) */
@media (min-width: 576px) and (max-width: 767px) {
    .login-modern__form-panel {
        padding: var(--space-8);
    }

    .login-modern__form-wrapper {
        max-width: 420px;
    }

    .login-modern__header {
        margin-bottom: var(--space-8);
    }

    .login-modern__form {
        gap: var(--space-6);
    }
}

/* Tablets (768px - 991px) */
@media (min-width: 768px) and (max-width: 991px) {
    .login-modern__form-panel {
        padding: var(--space-8) var(--space-10);
    }

    .login-modern__form-wrapper {
        max-width: 380px;
    }
}

/* Small Desktops (992px - 1199px) */
@media (min-width: 992px) and (max-width: 1199px) {
    .login-modern__form-wrapper {
        max-width: 400px;
    }
}

/* Large Desktops (1200px+) */
@media (min-width: 1200px) {
    .login-modern__form-wrapper {
        max-width: 420px;
    }

    .login-modern__form {
        gap: var(--space-6);
    }
}

/* Extra Large Screens (1400px+) */
@media (min-width: 1400px) {
    .login-modern__container {
        grid-template-columns: 60% 40%;
    }

    .login-modern__form-panel {
        padding: var(--space-12);
    }
}

/* Touch Device Optimizations */
@media (hover: none) and (pointer: coarse) {
    /* Larger touch targets on touch devices */
    .login-modern__input {
        height: 54px;
        font-size: 16px;
    }

    .login-modern__submit {
        height: 52px;
    }

    .login-modern__checkbox {
        width: 22px;
        height: 22px;
    }

    .login-modern__checkbox:checked::after {
        left: 7px;
        top: 3px;
        width: 6px;
        height: 11px;
    }

    .login-modern__password-toggle {
        width: 44px;
        height: 44px;
    }

    /* Remove hover effects that don't apply to touch */
    .login-modern__input:hover:not(:focus):not(:disabled) {
        border-color: var(--login-border);
        background-color: var(--login-surface);
    }

    .login-modern__submit::before {
        display: none;
    }

    /* Ensure touch feedback */
    .login-modern__submit:active:not(:disabled) {
        transform: scale(0.98);
        background-color: var(--login-primary-dark);
    }
}

/* High DPI / Retina Displays */
@media (-webkit-min-device-pixel-ratio: 2),
       (min-resolution: 192dpi) {
    .login-modern__input {
        border-width: 1px;
    }

    .login-modern__checkbox {
        border-width: 1px;
    }
}

/* Landscape Mode on Phones */
@media (max-height: 500px) and (orientation: landscape) {
    .login-modern__form-panel {
        padding: var(--space-4) var(--space-6);
        padding-bottom: var(--space-4);
        justify-content: flex-start;
        overflow-y: auto;
        min-height: auto;
    }

    .login-modern__mobile-brand {
        display: none;
    }

    .login-modern__header {
        margin-bottom: var(--space-4);
    }

    .login-modern__title {
        font-size: 20px;
    }

    .login-modern__subtitle {
        font-size: 13px;
    }

    .login-modern__form {
        gap: var(--space-4);
    }

    .login-modern__footer {
        margin-top: var(--space-4);
        padding-top: var(--space-3);
    }

    .login-modern__powered-by {
        position: relative;
        bottom: auto;
        right: auto;
        margin-top: var(--space-4);
        padding-top: var(--space-3);
        background: none;
        box-shadow: none;
    }
}

/* Safe Area Insets for Notched Devices */
@supports (padding: max(0px)) {
    .login-modern__form-panel {
        padding-left: max(var(--space-6), env(safe-area-inset-left));
        padding-right: max(var(--space-6), env(safe-area-inset-right));
        padding-bottom: max(var(--space-6), env(safe-area-inset-bottom));
    }

    @media (min-width: 768px) {
        .login-modern__form-panel {
            padding-left: var(--space-10);
            padding-right: var(--space-10);
        }
    }
}

/* Dark Mode Support (if user prefers) */
@media (prefers-color-scheme: dark) {
    .login-modern--dark-auto {
        --login-bg: #0f172a;
        --login-surface: #1e293b;
        --login-text-primary: #f1f5f9;
        --login-text-secondary: #94a3b8;
        --login-text-muted: #64748b;
        --login-border: #334155;
    }
}

/* High Contrast Mode */
@media (prefers-contrast: high) {
    .login-modern__input {
        border-width: 2px;
    }

    .login-modern__input:focus {
        box-shadow: 0 0 0 3px var(--login-primary);
    }

    .login-modern__checkbox {
        border-width: 2px;
    }

    .login-modern__submit {
        border: 2px solid transparent;
    }

    .login-modern__submit:focus {
        border-color: white;
    }

    .login-modern__link {
        text-decoration: underline;
    }
}

/* ============================================
   Register Link - Ghost Button Style
   ============================================ */
.login-modern__footer-links .login-modern__link {
    padding: var(--space-2) var(--space-5);
    border: 1.5px solid rgba(var(--login-primary-rgb), 0.4);
    border-radius: 10px;
    text-decoration: none;
    font-weight: 500;
    transition: all var(--transition-fast);
}

.login-modern__footer-links .login-modern__link:hover {
    background-color: rgba(var(--login-primary-rgb), 0.06);
    border-color: var(--login-primary);
    text-decoration: none;
}

.login-modern__footer-links .login-modern__link:focus {
    text-decoration: none;
}

/* ============================================
   Submit Button Arrow Icon
   ============================================ */
.login-modern__submit-icon {
    width: 18px;
    height: 18px;
    opacity: 0.85;
    transition: transform var(--transition-fast);
    flex-shrink: 0;
}

.login-modern__submit:hover:not(:disabled) .login-modern__submit-icon {
    transform: translateX(3px);
    opacity: 1;
}

/* ============================================
   Staggered Form Entrance Animation
   ============================================ */
@keyframes formEntrance {
    from {
        opacity: 0;
        transform: translateY(12px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.login-modern--loaded .login-modern__form-wrapper > * {
    animation: formEntrance 0.5s cubic-bezier(0.16, 1, 0.3, 1) both;
}

.login-modern--loaded .login-modern__form-wrapper > *:nth-child(1) {
    animation-delay: 0ms;
}

.login-modern--loaded .login-modern__form-wrapper > *:nth-child(2) {
    animation-delay: 60ms;
}

.login-modern--loaded .login-modern__form-wrapper > *:nth-child(3) {
    animation-delay: 120ms;
}

.login-modern--loaded .login-modern__form-wrapper > *:nth-child(4) {
    animation-delay: 180ms;
}

.login-modern--loaded .login-modern__form-wrapper > *:nth-child(5) {
    animation-delay: 240ms;
}

@media (prefers-reduced-motion: reduce) {
    .login-modern--loaded .login-modern__form-wrapper > * {
        animation: none;
    }
}

/* Smooth Resize Transitions */
.login-modern__form,
.login-modern__form-wrapper,
.login-modern__form-panel {
    transition: padding 0.2s ease;
}

/* Container Query Support (Progressive Enhancement) */
@supports (container-type: inline-size) {
    .login-modern__form-panel {
        container-type: inline-size;
        container-name: form-panel;
    }

    @container form-panel (max-width: 400px) {
        .login-modern__options {
            flex-direction: column;
            align-items: flex-start;
            gap: var(--space-3);
        }
    }

    @container form-panel (min-width: 500px) {
        .login-modern__form {
            gap: var(--space-6);
        }
    }
}