/**
 * BitBossWallet Design System
 * Complete design language for consistent UI/UX across the plugin
 *
 * @package BitBossWallet
 * @subpackage Design System
 * @version 1.0.0
 */

/* ============================================================================
   1. DESIGN TOKENS - Single Source of Truth
   ============================================================================ */

:root {
    /* ========================================================================
       Colors
       ======================================================================== */

    /* Primary Colors */
    --color-primary: #667eea;
    --color-primary-light: #8b9ef6;
    --color-primary-lighter: #e8ebf9;
    --color-primary-dark: #5568d3;
    --color-primary-darker: #3d4aa5;

    /* Secondary Colors */
    --color-secondary: #764ba2;
    --color-secondary-light: #9368c9;
    --color-secondary-lighter: #f3ecf9;
    --color-secondary-dark: #5a3a7a;

    /* Status Colors */
    --color-success: #10b981;
    --color-success-light: #6ee7b7;
    --color-success-lighter: #d1fae5;
    --color-warning: #f59e0b;
    --color-warning-light: #fbbf24;
    --color-warning-lighter: #fef3c7;
    --color-error: #ef4444;
    --color-error-light: #f87171;
    --color-error-lighter: #fee2e2;
    --color-info: #3b82f6;
    --color-info-light: #60a5fa;
    --color-info-lighter: #dbeafe;

    /* Neutral Colors */
    --color-neutral-50: #fafafa;
    --color-neutral-100: #f5f5f5;
    --color-neutral-200: #e5e5e5;
    --color-neutral-300: #d4d4d4;
    --color-neutral-400: #a3a3a3;
    --color-neutral-500: #737373;
    --color-neutral-600: #525252;
    --color-neutral-700: #404040;
    --color-neutral-800: #262626;
    --color-neutral-900: #171717;

    /* Semantic Colors */
    --color-bg-primary: #ffffff;
    --color-bg-secondary: #f9fafb;
    --color-bg-tertiary: #f3f4f6;
    --color-bg-overlay: rgba(0, 0, 0, 0.5);

    --color-text-primary: #111827;
    --color-text-secondary: #6b7280;
    --color-text-tertiary: #9ca3af;
    --color-text-inverse: #ffffff;

    --color-border: #e5e7eb;
    --color-border-dark: #d1d5db;
    --color-border-light: #f3f4f6;

    /* ========================================================================
       Typography
       ======================================================================== */

    /* Font Families */
    --font-family-base: -apple-system, BlinkMacSystemFont, "Segoe UI", "Roboto", "Oxygen", "Ubuntu", "Cantarell", sans-serif;
    --font-family-mono: "Menlo", "Monaco", "Courier New", monospace;
    --font-family-display: "Inter", "Helvetica Neue", sans-serif;

    /* Font Sizes */
    --font-size-xs: 0.75rem;      /* 12px */
    --font-size-sm: 0.875rem;     /* 14px */
    --font-size-base: 1rem;       /* 16px */
    --font-size-lg: 1.125rem;     /* 18px */
    --font-size-xl: 1.25rem;      /* 20px */
    --font-size-2xl: 1.5rem;      /* 24px */
    --font-size-3xl: 1.875rem;    /* 30px */
    --font-size-4xl: 2.25rem;     /* 36px */
    --font-size-5xl: 3rem;        /* 48px */

    /* Line Heights */
    --line-height-tight: 1.25;
    --line-height-snug: 1.375;
    --line-height-normal: 1.5;
    --line-height-relaxed: 1.625;
    --line-height-loose: 2;

    /* Font Weights */
    --font-weight-light: 300;
    --font-weight-normal: 400;
    --font-weight-medium: 500;
    --font-weight-semibold: 600;
    --font-weight-bold: 700;
    --font-weight-extrabold: 800;

    /* Letter Spacing */
    --letter-spacing-tight: -0.02em;
    --letter-spacing-normal: 0;
    --letter-spacing-wide: 0.02em;

    /* ========================================================================
       Spacing
       ======================================================================== */

    --space-0: 0;
    --space-xs: 0.25rem;   /* 4px */
    --space-sm: 0.5rem;    /* 8px */
    --space-md: 1rem;      /* 16px */
    --space-lg: 1.5rem;    /* 24px */
    --space-xl: 2rem;      /* 32px */
    --space-2xl: 3rem;     /* 48px */
    --space-3xl: 4rem;     /* 64px */
    --space-4xl: 6rem;     /* 96px */

    /* ========================================================================
       Shadows
       ======================================================================== */

    --shadow-none: 0 0 #0000;
    --shadow-xs: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-sm: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 rgba(0, 0, 0, 0.06);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);

    --shadow-inner: inset 0 2px 4px 0 rgba(0, 0, 0, 0.06);

    /* ========================================================================
       Border Radius
       ======================================================================== */

    --radius-none: 0;
    --radius-xs: 2px;
    --radius-sm: 4px;
    --radius-md: 6px;
    --radius-lg: 8px;
    --radius-xl: 12px;
    --radius-2xl: 16px;
    --radius-3xl: 24px;
    --radius-full: 9999px;

    /* ========================================================================
       Z-Index
       ======================================================================== */

    --z-hide: -1;
    --z-auto: auto;
    --z-base: 0;
    --z-dropdown: 1000;
    --z-sticky: 1100;
    --z-fixed: 1200;
    --z-modal-backdrop: 1300;
    --z-modal: 1400;
    --z-popover: 1500;
    --z-tooltip: 1600;

    /* ========================================================================
       Transitions & Animations
       ======================================================================== */

    --transition-fast: 150ms ease-in-out;
    --transition-base: 200ms ease-in-out;
    --transition-slow: 300ms ease-in-out;
    --transition-slower: 500ms ease-in-out;

    /* ========================================================================
       Breakpoints
       ======================================================================== */

    --breakpoint-sm: 640px;
    --breakpoint-md: 768px;
    --breakpoint-lg: 1024px;
    --breakpoint-xl: 1280px;
    --breakpoint-2xl: 1536px;
}

/* ============================================================================
   2. GLOBAL STYLES
   ============================================================================ */

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

html {
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-family-base);
    font-size: var(--font-size-base);
    line-height: var(--line-height-normal);
    color: var(--color-text-primary);
    background-color: var(--color-bg-primary);
    overflow-x: hidden;
}

/* ============================================================================
   3. TYPOGRAPHY COMPONENTS
   ============================================================================ */

h1, .h1 {
    font-size: var(--font-size-3xl);
    font-weight: var(--font-weight-bold);
    line-height: var(--line-height-tight);
    color: var(--color-text-primary);
    margin-bottom: var(--space-md);
}

h2, .h2 {
    font-size: var(--font-size-2xl);
    font-weight: var(--font-weight-bold);
    line-height: var(--line-height-snug);
    color: var(--color-text-primary);
    margin-bottom: var(--space-md);
}

h3, .h3 {
    font-size: var(--font-size-xl);
    font-weight: var(--font-weight-semibold);
    line-height: var(--line-height-snug);
    color: var(--color-text-primary);
    margin-bottom: var(--space-sm);
}

h4, .h4 {
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-semibold);
    line-height: var(--line-height-snug);
    color: var(--color-text-primary);
    margin-bottom: var(--space-sm);
}

h5, .h5 {
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-semibold);
    line-height: var(--line-height-normal);
    color: var(--color-text-primary);
    margin-bottom: var(--space-xs);
}

h6, .h6 {
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-semibold);
    line-height: var(--line-height-normal);
    color: var(--color-text-secondary);
    margin-bottom: var(--space-xs);
    text-transform: uppercase;
    letter-spacing: var(--letter-spacing-wide);
}

p {
    margin-bottom: var(--space-md);
    line-height: var(--line-height-relaxed);
}

p:last-child {
    margin-bottom: 0;
}

small, .text-sm {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
}

/* ============================================================================
   4. BUTTON COMPONENTS
   ============================================================================ */

.btn,
button,
input[type="button"],
input[type="submit"],
input[type="reset"] {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);

    padding: var(--space-md) var(--space-lg);
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-semibold);
    font-family: var(--font-family-base);

    border: 2px solid transparent;
    border-radius: var(--radius-lg);
    cursor: pointer;

    text-decoration: none;
    text-align: center;
    white-space: nowrap;
    user-select: none;

    transition: all var(--transition-base);

    min-height: 44px;
    min-width: 44px;
}

/* Button Variants */

.btn-primary {
    background-color: var(--color-primary);
    color: var(--color-text-inverse);
    border-color: var(--color-primary);
}

.btn-primary:hover:not(:disabled) {
    background-color: var(--color-primary-dark);
    border-color: var(--color-primary-dark);
    box-shadow: var(--shadow-lg);
    transform: translateY(-2px);
}

.btn-primary:active:not(:disabled) {
    transform: translateY(0);
    box-shadow: var(--shadow-md);
}

.btn-primary:focus {
    outline: 3px solid var(--color-primary-lighter);
    outline-offset: 2px;
}

.btn-secondary {
    background-color: var(--color-bg-tertiary);
    color: var(--color-text-primary);
    border-color: var(--color-border-dark);
}

.btn-secondary:hover:not(:disabled) {
    background-color: var(--color-bg-secondary);
    border-color: var(--color-border);
}

.btn-tertiary {
    background-color: transparent;
    color: var(--color-primary);
    border-color: var(--color-primary);
}

.btn-tertiary:hover:not(:disabled) {
    background-color: var(--color-primary-lighter);
}

.btn-success {
    background-color: var(--color-success);
    color: var(--color-text-inverse);
    border-color: var(--color-success);
}

.btn-success:hover:not(:disabled) {
    background-color: #059669;
}

.btn-warning {
    background-color: var(--color-warning);
    color: var(--color-text-inverse);
    border-color: var(--color-warning);
}

.btn-warning:hover:not(:disabled) {
    background-color: #d97706;
}

.btn-error {
    background-color: var(--color-error);
    color: var(--color-text-inverse);
    border-color: var(--color-error);
}

.btn-error:hover:not(:disabled) {
    background-color: #dc2626;
}

/* Button Sizes */

.btn-sm {
    padding: var(--space-sm) var(--space-md);
    font-size: var(--font-size-sm);
    min-height: 32px;
    border-radius: var(--radius-md);
}

.btn-lg {
    padding: var(--space-lg) var(--space-2xl);
    font-size: var(--font-size-lg);
    min-height: 52px;
}

.btn-xl {
    padding: var(--space-xl) var(--space-3xl);
    font-size: var(--font-size-lg);
    min-height: 60px;
    border-radius: var(--radius-xl);
}

/* Button States */

.btn:disabled,
button:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.btn-ghost {
    background-color: transparent;
    color: var(--color-primary);
    border-color: transparent;
}

.btn-ghost:hover:not(:disabled) {
    background-color: var(--color-primary-lighter);
}

/* ============================================================================
   5. FORM COMPONENTS
   ============================================================================ */

.form-group {
    margin-bottom: var(--space-lg);
    display: flex;
    flex-direction: column;
}

.form-label {
    display: flex;
    gap: var(--space-xs);
    margin-bottom: var(--space-sm);
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-semibold);
    color: var(--color-text-primary);
}

.form-label-required {
    color: var(--color-error);
    font-weight: var(--font-weight-bold);
}

input[type="text"],
input[type="email"],
input[type="password"],
input[type="number"],
input[type="tel"],
input[type="url"],
input[type="search"],
input[type="date"],
input[type="time"],
select,
textarea {
    width: 100%;
    padding: var(--space-md);

    font-size: var(--font-size-base);
    font-family: var(--font-family-base);
    line-height: var(--line-height-normal);

    background-color: var(--color-bg-primary);
    border: 2px solid var(--color-border);
    border-radius: var(--radius-lg);
    color: var(--color-text-primary);

    transition: all var(--transition-base);

    min-height: 44px;
}

input[type="text"]::placeholder,
input[type="email"]::placeholder,
input[type="password"]::placeholder,
input[type="number"]::placeholder,
input[type="tel"]::placeholder,
input[type="url"]::placeholder,
input[type="search"]::placeholder,
textarea::placeholder {
    color: var(--color-text-tertiary);
}

input[type="text"]:focus,
input[type="email"]:focus,
input[type="password"]:focus,
input[type="number"]:focus,
input[type="tel"]:focus,
input[type="url"]:focus,
input[type="search"]:focus,
input[type="date"]:focus,
input[type="time"]:focus,
select:focus,
textarea:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px var(--color-primary-lighter);
    background-color: var(--color-bg-primary);
}

input[type="text"]:disabled,
input[type="email"]:disabled,
textarea:disabled {
    background-color: var(--color-bg-tertiary);
    color: var(--color-text-tertiary);
    cursor: not-allowed;
}

input[type="text"]:invalid:not(:placeholder-shown),
input[type="email"]:invalid:not(:placeholder-shown),
input[type="password"]:invalid:not(:placeholder-shown) {
    border-color: var(--color-error);
}

textarea {
    min-height: 120px;
    resize: vertical;
}

.form-help {
    font-size: var(--font-size-sm);
    color: var(--color-text-tertiary);
    margin-top: var(--space-xs);
}

.form-error {
    font-size: var(--font-size-sm);
    color: var(--color-error);
    margin-top: var(--space-xs);
}

/* ============================================================================
   6. CARD COMPONENT
   ============================================================================ */

.card {
    background-color: var(--color-bg-primary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: var(--space-lg);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-base);
}

.card:hover {
    box-shadow: var(--shadow-md);
    border-color: var(--color-border-dark);
}

.card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: var(--space-md);
    margin-bottom: var(--space-lg);
    padding-bottom: var(--space-lg);
    border-bottom: 1px solid var(--color-border);
}

.card-body {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
}

.card-footer {
    display: flex;
    justify-content: flex-end;
    gap: var(--space-md);
    margin-top: var(--space-lg);
    padding-top: var(--space-lg);
    border-top: 1px solid var(--color-border);
}

.card-elevated {
    box-shadow: var(--shadow-lg);
    border: none;
}

.card-flat {
    border: none;
    background-color: var(--color-bg-secondary);
}

/* ============================================================================
   7. ALERT & NOTIFICATION COMPONENTS
   ============================================================================ */

.alert {
    display: flex;
    gap: var(--space-md);
    align-items: flex-start;
    padding: var(--space-lg);
    border-radius: var(--radius-lg);
    border-left: 4px solid;
    margin-bottom: var(--space-md);
}

.alert-success {
    background-color: var(--color-success-lighter);
    border-left-color: var(--color-success);
    color: #065f46;
}

.alert-error {
    background-color: var(--color-error-lighter);
    border-left-color: var(--color-error);
    color: #7f1d1d;
}

.alert-warning {
    background-color: var(--color-warning-lighter);
    border-left-color: var(--color-warning);
    color: #78350f;
}

.alert-info {
    background-color: var(--color-info-lighter);
    border-left-color: var(--color-info);
    color: #0c4a6e;
}

.alert-title {
    font-weight: var(--font-weight-semibold);
    margin-bottom: var(--space-xs);
}

.alert-close {
    margin-left: auto;
    background: none;
    border: none;
    padding: 0;
    cursor: pointer;
    font-size: var(--font-size-lg);
    color: inherit;
}

/* ============================================================================
   8. BADGE COMPONENT
   ============================================================================ */

.badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-xs);
    padding: var(--space-xs) var(--space-md);
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-semibold);
    border-radius: var(--radius-full);
    background-color: var(--color-bg-tertiary);
    color: var(--color-text-primary);
    text-transform: uppercase;
    letter-spacing: var(--letter-spacing-wide);
}

.badge-success {
    background-color: var(--color-success-lighter);
    color: #065f46;
}

.badge-error {
    background-color: var(--color-error-lighter);
    color: #7f1d1d;
}

.badge-warning {
    background-color: var(--color-warning-lighter);
    color: #78350f;
}

.badge-info {
    background-color: var(--color-info-lighter);
    color: #0c4a6e;
}

.badge-primary {
    background-color: var(--color-primary-lighter);
    color: #3d4aa5;
}

/* ============================================================================
   9. BADGE COMPONENT
   ============================================================================ */

.modal-backdrop {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: var(--color-bg-overlay);
    z-index: var(--z-modal-backdrop);
    display: flex;
    align-items: center;
    justify-content: center;
}

.modal {
    background-color: var(--color-bg-primary);
    border-radius: var(--radius-2xl);
    box-shadow: var(--shadow-2xl);
    max-width: 500px;
    width: 90vw;
    max-height: 90vh;
    overflow-y: auto;
    z-index: var(--z-modal);
    animation: slideUp 300ms ease-out;
}

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

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--space-lg);
    border-bottom: 1px solid var(--color-border);
}

.modal-title {
    font-size: var(--font-size-xl);
    font-weight: var(--font-weight-bold);
}

.modal-close {
    background: none;
    border: none;
    font-size: var(--font-size-2xl);
    cursor: pointer;
    color: var(--color-text-secondary);
    padding: 0;
}

.modal-body {
    padding: var(--space-lg);
}

.modal-footer {
    display: flex;
    justify-content: flex-end;
    gap: var(--space-md);
    padding: var(--space-lg);
    border-top: 1px solid var(--color-border);
}

/* ============================================================================
   10. SPINNER & LOADING STATES
   ============================================================================ */

.spinner {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid var(--color-border);
    border-top-color: var(--color-primary);
    border-radius: 50%;
    animation: spin 600ms linear infinite;
}

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

.spinner-lg {
    width: 40px;
    height: 40px;
    border-width: 4px;
}

.skeleton {
    background: linear-gradient(
        90deg,
        var(--color-bg-tertiary) 25%,
        var(--color-bg-secondary) 50%,
        var(--color-bg-tertiary) 75%
    );
    background-size: 200% 100%;
    animation: shimmer 1.5s infinite;
}

@keyframes shimmer {
    0% {
        background-position: 200% 0;
    }
    100% {
        background-position: -200% 0;
    }
}

.skeleton-line {
    height: 16px;
    border-radius: var(--radius-md);
    margin-bottom: var(--space-md);
}

.skeleton-text {
    height: 24px;
    border-radius: var(--radius-md);
    margin-bottom: var(--space-lg);
}

.skeleton-avatar {
    width: 48px;
    height: 48px;
    border-radius: 50%;
}

/* ============================================================================
   11. UTILITY CLASSES
   ============================================================================ */

/* Display */
.d-none {
    display: none !important;
}

.d-inline {
    display: inline !important;
}

.d-block {
    display: block !important;
}

.d-flex {
    display: flex !important;
}

.d-grid {
    display: grid !important;
}

/* Flex */
.flex-row {
    flex-direction: row;
}

.flex-col {
    flex-direction: column;
}

.justify-start {
    justify-content: flex-start;
}

.justify-center {
    justify-content: center;
}

.justify-end {
    justify-content: flex-end;
}

.justify-between {
    justify-content: space-between;
}

.justify-around {
    justify-content: space-around;
}

.align-start {
    align-items: flex-start;
}

.align-center {
    align-items: center;
}

.align-end {
    align-items: flex-end;
}

.gap-xs {
    gap: var(--space-xs);
}

.gap-sm {
    gap: var(--space-sm);
}

.gap-md {
    gap: var(--space-md);
}

.gap-lg {
    gap: var(--space-lg);
}

/* Text */
.text-center {
    text-align: center;
}

.text-left {
    text-align: left;
}

.text-right {
    text-align: right;
}

.text-justify {
    text-align: justify;
}

.font-light {
    font-weight: var(--font-weight-light);
}

.font-normal {
    font-weight: var(--font-weight-normal);
}

.font-medium {
    font-weight: var(--font-weight-medium);
}

.font-semibold {
    font-weight: var(--font-weight-semibold);
}

.font-bold {
    font-weight: var(--font-weight-bold);
}

.italic {
    font-style: italic;
}

.truncate {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.line-clamp-1 {
    overflow: hidden;
    display: -webkit-box;
    -webkit-line-clamp: 1;
    -webkit-box-orient: vertical;
}

.line-clamp-2 {
    overflow: hidden;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
}

/* Spacing */
.m-0 {
    margin: 0 !important;
}

.mt-sm {
    margin-top: var(--space-sm);
}

.mt-md {
    margin-top: var(--space-md);
}

.mt-lg {
    margin-top: var(--space-lg);
}

.mb-sm {
    margin-bottom: var(--space-sm);
}

.mb-md {
    margin-bottom: var(--space-md);
}

.mb-lg {
    margin-bottom: var(--space-lg);
}

.mx-auto {
    margin-left: auto;
    margin-right: auto;
}

.p-sm {
    padding: var(--space-sm);
}

.p-md {
    padding: var(--space-md);
}

.p-lg {
    padding: var(--space-lg);
}

.px-md {
    padding-left: var(--space-md);
    padding-right: var(--space-md);
}

.py-md {
    padding-top: var(--space-md);
    padding-bottom: var(--space-md);
}

/* Visibility */
.invisible {
    visibility: hidden;
}

.visible {
    visibility: visible;
}

.opacity-0 {
    opacity: 0;
}

.opacity-50 {
    opacity: 0.5;
}

.opacity-100 {
    opacity: 1;
}

/* ============================================================================
   12. RESPONSIVE DESIGN
   ============================================================================ */

/* Small devices (landscape phones, 640px and up) */
@media (min-width: 640px) {
    .sm\:d-none {
        display: none;
    }

    .sm\:d-block {
        display: block;
    }

    .sm\:d-flex {
        display: flex;
    }
}

/* Medium devices (tablets, 768px and up) */
@media (min-width: 768px) {
    .md\:d-none {
        display: none;
    }

    .md\:d-block {
        display: block;
    }

    .md\:d-flex {
        display: flex;
    }

    .md\:w-1\/2 {
        width: 50%;
    }

    .md\:w-2\/3 {
        width: 66.666667%;
    }
}

/* Large devices (desktops, 1024px and up) */
@media (min-width: 1024px) {
    .lg\:d-none {
        display: none;
    }

    .lg\:d-block {
        display: block;
    }

    .lg\:d-flex {
        display: flex;
    }

    .lg\:w-1\/3 {
        width: 33.333333%;
    }

    .lg\:w-1\/2 {
        width: 50%;
    }
}

/* ============================================================================
   13. ACCESSIBILITY
   ============================================================================ */

/* Focus visible states */
button:focus-visible,
a:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible {
    outline: 3px solid var(--color-primary);
    outline-offset: 2px;
}

/* Skip to main content link */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border-width: 0;
}

.sr-only-focusable:focus {
    position: static;
    width: auto;
    height: auto;
    overflow: visible;
    clip: auto;
}

/* Reduced motion */
@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 */
@media (prefers-contrast: more) {
    :root {
        --color-border: var(--color-neutral-400);
        --color-text-secondary: var(--color-neutral-600);
    }

    .btn-primary,
    .btn-success,
    .btn-error,
    .btn-warning {
        border-width: 3px;
    }
}

/* Dark mode support disabled - Light mode only */

/* ============================================================================
   14. PRINT STYLES
   ============================================================================ */

@media print {
    .no-print {
        display: none !important;
    }

    body {
        background-color: white;
    }

    a[href]:after {
        content: none;
    }
}