/**
 * OmniCalc Master Design System & Base Stylesheet
 * Engineered for American Audiences: High-Trust, Modern FinTech Aesthetic, Precision Alignment
 */

:root {
    /* Modern Typography Stack */
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
    --font-heading: 'Plus Jakarta Sans', var(--font-sans);
    --font-mono: 'JetBrains Mono', ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;

    /* Curated Silicon Valley / FinTech Color Palette */
    --primary: #4338ca;
    --primary-hover: #3730a3;
    --primary-light: #eef2ff;
    --primary-border: #c7d2fe;
    --primary-gradient: linear-gradient(135deg, #4f46e5 0%, #3b82f6 100%);
    
    --accent: #0284c7;
    --accent-hover: #0369a1;
    --accent-light: #f0f9ff;
    --accent-border: #bae6fd;
    
    --success: #059669;
    --success-light: #ecfdf5;
    --success-border: #a7f3d0;
    
    --warning: #d97706;
    --warning-light: #fffbeb;
    --warning-border: #fde68a;

    --danger: #dc2626;
    --danger-light: #fef2f2;
    --danger-border: #fecaca;

    --bg-page: #f8fafc;
    --bg-card: #ffffff;
    --bg-card-subtle: #f1f5f9;
    --bg-card-hover: #f8fafc;
    --bg-header: rgba(255, 255, 255, 0.94);

    --text-main: #0f172a;
    --text-body: #334155;
    --text-muted: #64748b;
    --text-light: #94a3b8;
    --text-inverse: #ffffff;

    --border: #e2e8f0;
    --border-hover: #cbd5e1;
    --border-focus: #6366f1;

    --shadow-xs: 0 1px 2px 0 rgba(15, 23, 42, 0.05);
    --shadow-sm: 0 1px 3px 0 rgba(15, 23, 42, 0.08), 0 1px 2px -1px rgba(15, 23, 42, 0.08);
    --shadow-md: 0 4px 6px -1px rgba(15, 23, 42, 0.07), 0 2px 4px -2px rgba(15, 23, 42, 0.05);
    --shadow-lg: 0 10px 15px -3px rgba(15, 23, 42, 0.08), 0 4px 6px -4px rgba(15, 23, 42, 0.03);
    --shadow-xl: 0 20px 25px -5px rgba(15, 23, 42, 0.08), 0 8px 10px -6px rgba(15, 23, 42, 0.04);
    --shadow-card-hover: 0 14px 28px -4px rgba(15, 23, 42, 0.09), 0 6px 12px -4px rgba(15, 23, 42, 0.04);
    --shadow-glow: 0 0 25px rgba(79, 70, 229, 0.16);

    --radius-xs: 4px;
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 22px;
    --radius-full: 9999px;

    --container-max: 1240px;
    --transition-fast: 0.15s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-normal: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Reset & Box Sizing */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: var(--font-sans);
    background-color: var(--bg-page);
    color: var(--text-body);
    line-height: 1.6;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

.site-wrapper {
    flex: 1 0 auto;
}

/* Typography Hierarchy */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    color: var(--text-main);
    line-height: 1.25;
    font-weight: 700;
    letter-spacing: -0.02em;
}

p {
    margin-bottom: 1rem;
    color: var(--text-body);
}

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

a {
    color: var(--primary);
    text-decoration: none;
    transition: color var(--transition-fast);
}

a:hover {
    color: var(--primary-hover);
}

ul, ol {
    list-style: none;
}

img, svg {
    display: block;
    max-width: 100%;
}

/* Accessibility */
.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;
}

.skip-to-content:focus {
    position: fixed;
    top: 12px;
    left: 12px;
    background: var(--primary);
    color: #fff;
    padding: 10px 18px;
    z-index: 9999;
    border-radius: var(--radius-sm);
    box-shadow: var(--shadow-lg);
    font-weight: 600;
    width: auto;
    height: auto;
    clip: auto;
}

/* Layout Container */
.container {
    width: 100%;
    max-width: var(--container-max);
    margin-left: auto;
    margin-right: auto;
    padding-left: 1.5rem;
    padding-right: 1.5rem;
}

/* Global Header & Nav */
.site-header {
    position: sticky;
    top: 0;
    z-index: 1000;
    background: var(--bg-header);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--border);
    transition: all var(--transition-fast);
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 74px;
    gap: 1.75rem;
}

/* Brand Logo */
.brand-wrapper {
    display: flex;
    align-items: center;
    gap: 0.85rem;
    flex-shrink: 0;
}

.brand-logo, .footer-brand-logo {
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    text-decoration: none;
}

.logo-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 42px;
    height: 42px;
    background: linear-gradient(135deg, #4f46e5 0%, #3b82f6 100%);
    color: #fff;
    font-size: 1.3rem;
    border-radius: var(--radius-md);
    box-shadow: 0 4px 12px rgba(79, 70, 229, 0.3);
    flex-shrink: 0;
}

.logo-text {
    display: flex;
    flex-direction: column;
}

.logo-title {
    font-family: var(--font-heading);
    font-size: 1.4rem;
    font-weight: 800;
    color: var(--text-main);
    letter-spacing: -0.03em;
    line-height: 1.1;
}

.logo-sub {
    font-size: 0.72rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--primary);
}

.edition-badge {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    font-size: 0.72rem;
    font-weight: 700;
    color: #1e40af;
    background: #dbeafe;
    border: 1px solid #bfdbfe;
    border-radius: var(--radius-full);
    padding: 3px 9px;
    letter-spacing: 0.02em;
    white-space: nowrap;
}

/* Header Search */
.search-bar-header {
    flex: 1;
    max-width: 440px;
    position: relative;
}

.search-input-wrapper {
    position: relative;
    display: flex;
    align-items: center;
    width: 100%;
}

.search-input-wrapper .search-icon {
    position: absolute;
    left: 14px;
    top: 50%;
    transform: translateY(-50%);
    pointer-events: none;
    font-size: 0.95rem;
    opacity: 0.55;
    display: flex;
    align-items: center;
    justify-content: center;
}

.search-input {
    width: 100%;
    height: 44px;
    padding: 0 44px 0 42px;
    background: var(--bg-card-subtle);
    border: 1px solid var(--border);
    border-radius: var(--radius-full);
    font-family: var(--font-sans);
    font-size: 0.9rem;
    color: var(--text-main);
    outline: none;
    transition: all var(--transition-fast);
}

.search-input::placeholder {
    color: var(--text-light);
}

.search-input:focus {
    background: #fff;
    border-color: var(--border-focus);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.15);
}

.search-kbd-hint {
    position: absolute;
    right: 12px;
    top: 50%;
    transform: translateY(-50%);
    font-family: var(--font-mono);
    font-size: 0.72rem;
    font-weight: 600;
    color: var(--text-light);
    background: #ffffff;
    border: 1px solid var(--border);
    border-radius: 5px;
    padding: 2px 6px;
    pointer-events: none;
    box-shadow: 0 1px 1px rgba(0,0,0,0.04);
}

/* Search Dropdown Results */
.search-dropdown-results {
    position: absolute;
    top: calc(100% + 8px);
    left: 0;
    right: 0;
    background: #ffffff;
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
    max-height: 420px;
    overflow-y: auto;
    display: none;
    z-index: 1050;
    backdrop-filter: blur(20px);
}

.search-dropdown-results.is-open {
    display: block;
    animation: fadeInDown 0.18s cubic-bezier(0.16, 1, 0.3, 1);
}

@keyframes fadeInDown {
    from {
        opacity: 0;
        transform: translateY(-6px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.search-result-item {
    display: flex;
    align-items: center;
    padding: 11px 16px;
    border-bottom: 1px solid var(--border);
    transition: background var(--transition-fast);
    gap: 12px;
}

.search-result-item:last-child {
    border-bottom: none;
}

.search-result-item:hover, .search-result-item:focus {
    background: var(--primary-light);
}

.search-res-icon {
    font-size: 1.35rem;
    width: 36px;
    height: 36px;
    background: var(--bg-card-subtle);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.search-res-info {
    flex: 1;
    min-width: 0;
}

.search-res-title {
    font-weight: 600;
    font-size: 0.93rem;
    color: var(--text-main);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.search-res-cat {
    font-size: 0.76rem;
    color: var(--text-muted);
}

/* Primary Nav */
.primary-nav {
    display: flex;
    align-items: center;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 1.25rem;
}

.nav-link {
    font-size: 0.94rem;
    font-weight: 600;
    color: var(--text-muted);
    padding: 8px 12px;
    border-radius: var(--radius-sm);
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: none;
    border: none;
    cursor: pointer;
    font-family: inherit;
    transition: all var(--transition-fast);
}

.nav-link:hover {
    color: var(--primary);
    background: var(--primary-light);
}

.nav-item-dropdown {
    position: relative;
}

.dropdown-toggle .chevron-icon {
    transition: transform var(--transition-fast);
}

.nav-item-dropdown:hover .chevron-icon {
    transform: rotate(180deg);
}

.dropdown-menu {
    position: absolute;
    top: calc(100% + 8px);
    right: 0;
    min-width: 260px;
    background: #ffffff;
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-xl);
    padding: 8px;
    display: none;
    z-index: 1000;
}

.nav-item-dropdown:hover .dropdown-menu,
.nav-item-dropdown:focus-within .dropdown-menu {
    display: block;
    animation: fadeInDown 0.18s cubic-bezier(0.16, 1, 0.3, 1);
}

.dropdown-menu li a {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 9px 12px;
    color: var(--text-body);
    font-size: 0.91rem;
    font-weight: 500;
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
}

.dropdown-menu li a:hover {
    background: var(--primary-light);
    color: var(--primary);
}

.dropdown-menu .cat-icon {
    font-size: 1.15rem;
    width: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.btn-nav-action {
    display: inline-flex;
    align-items: center;
    font-size: 0.88rem;
    font-weight: 700;
    color: #ffffff !important;
    background: var(--primary);
    padding: 8px 16px;
    border-radius: var(--radius-full);
    box-shadow: 0 2px 6px rgba(79, 70, 229, 0.25);
    transition: all var(--transition-fast);
}

.btn-nav-action:hover {
    background: var(--primary-hover);
    transform: translateY(-1px);
    box-shadow: 0 4px 10px rgba(79, 70, 229, 0.35);
}

/* Mobile Menu Toggle Button */
.mobile-menu-toggle {
    display: none;
    background: var(--bg-card-subtle);
    border: 1px solid var(--border);
    cursor: pointer;
    width: 44px;
    height: 44px;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    gap: 5px;
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
}

.mobile-menu-toggle:hover, .mobile-menu-toggle:focus-visible {
    background: var(--primary-light);
    border-color: var(--primary-border);
}

.mobile-menu-toggle .bar {
    width: 20px;
    height: 2px;
    background: var(--text-main);
    border-radius: 2px;
    transition: all var(--transition-fast);
}

/* Mobile Slide-Over Drawer & Backdrop */
.mobile-nav-backdrop {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(15, 23, 42, 0.65);
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
    z-index: 1090;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

.mobile-nav-backdrop.is-open {
    opacity: 1;
    pointer-events: auto;
}

.mobile-nav-drawer {
    position: fixed;
    top: 0;
    right: 0;
    bottom: 0;
    width: min(88vw, 380px);
    height: 100%;
    background: #ffffff;
    z-index: 1100;
    box-shadow: -10px 0 35px rgba(0, 0, 0, 0.2);
    display: flex;
    flex-direction: column;
    transform: translateX(100%);
    transition: transform 0.28s cubic-bezier(0.16, 1, 0.3, 1);
    overflow: hidden;
}

.mobile-nav-drawer.is-open {
    transform: translateX(0);
}

.mobile-drawer-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1.15rem 1.25rem;
    border-bottom: 1px solid var(--border);
    background: var(--bg-card-subtle);
    flex-shrink: 0;
}

.drawer-brand {
    display: flex;
    align-items: center;
    gap: 8px;
}

.drawer-brand-title {
    font-family: var(--font-heading);
    font-size: 1.25rem;
    font-weight: 800;
    color: var(--text-main);
}

.drawer-close-btn {
    width: 38px;
    height: 38px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: #ffffff;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    color: var(--text-main);
    font-size: 1.15rem;
    font-weight: 700;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.drawer-close-btn:hover {
    background: var(--danger-light);
    color: var(--danger);
    border-color: var(--danger-border);
}

.drawer-content {
    padding: 1.25rem;
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
    flex: 1;
}

.drawer-search {
    margin-bottom: 1rem;
    position: relative;
}

.drawer-quick-action {
    margin-bottom: 1.25rem;
}

.drawer-action-btn {
    width: 100%;
    font-size: 0.92rem;
    padding: 11px;
}

.mobile-nav-list {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.mobile-nav-list li a {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 12px;
    color: var(--text-main);
    font-size: 0.94rem;
    font-weight: 600;
    border-radius: var(--radius-sm);
    transition: background var(--transition-fast);
    min-height: 44px; /* Apple/Android touch guideline */
}

.mobile-nav-list li a:hover, .mobile-nav-list li a:active {
    background: var(--primary-light);
    color: var(--primary);
}

.mobile-cat-icon {
    font-size: 1.2rem;
    width: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.mobile-cat-header {
    font-size: 0.74rem;
    text-transform: uppercase;
    font-weight: 800;
    color: var(--text-light);
    letter-spacing: 0.08em;
    margin-top: 1.25rem;
    margin-bottom: 0.25rem;
    padding: 6px 12px 2px;
}

/* Buttons System */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    font-family: var(--font-sans);
    font-size: 0.95rem;
    font-weight: 600;
    padding: 11px 22px;
    border-radius: var(--radius-md);
    cursor: pointer;
    border: 1px solid transparent;
    transition: all var(--transition-fast);
    line-height: 1.2;
    text-align: center;
}

.btn-primary {
    background: var(--primary);
    color: #ffffff !important;
    box-shadow: 0 4px 10px rgba(79, 70, 229, 0.22);
}

.btn-primary:hover {
    background: var(--primary-hover);
    box-shadow: 0 6px 16px rgba(79, 70, 229, 0.32);
    transform: translateY(-1px);
}

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

.btn-outline {
    background: #ffffff;
    color: var(--text-body);
    border-color: var(--border);
}

.btn-outline:hover {
    background: var(--bg-card-subtle);
    border-color: var(--border-hover);
    color: var(--text-main);
}

/* Section Header Shared */
.section-header-compact {
    margin-bottom: 1.75rem;
}

.section-tag {
    display: inline-block;
    font-size: 0.78rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--primary);
    margin-bottom: 0.4rem;
}

.section-heading {
    font-size: 1.85rem;
    font-weight: 800;
    color: var(--text-main);
    letter-spacing: -0.03em;
}

/* Hero Section */
.hero-section {
    padding: 5rem 0 4rem;
    background: radial-gradient(100% 100% at 50% 0%, rgba(99, 102, 241, 0.09) 0%, rgba(248, 250, 252, 0) 100%);
    text-align: center;
    border-bottom: 1px solid var(--border);
    margin-bottom: 1rem;
}

.hero-pill {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: #ffffff;
    border: 1px solid var(--primary-border);
    padding: 5px 14px 5px 6px;
    border-radius: var(--radius-full);
    box-shadow: var(--shadow-xs);
    margin-bottom: 1.5rem;
}

.hero-pill-badge {
    background: var(--primary-light);
    color: var(--primary);
    font-size: 0.78rem;
    font-weight: 700;
    padding: 3px 10px;
    border-radius: var(--radius-full);
}

.hero-pill-text {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-body);
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 800;
    letter-spacing: -0.04em;
    line-height: 1.12;
    margin-bottom: 1.25rem;
    color: var(--text-main);
}

.hero-title .gradient-text {
    background: linear-gradient(135deg, #312e81 0%, #4f46e5 50%, #0284c7 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero-desc {
    font-size: 1.18rem;
    color: var(--text-muted);
    max-width: 720px;
    margin: 0 auto 2.25rem;
    line-height: 1.6;
}

.hero-search-wrapper {
    max-width: 650px;
    margin: 0 auto;
    position: relative;
}

.hero-search-box {
    box-shadow: 0 10px 25px -5px rgba(15, 23, 42, 0.08), 0 8px 10px -6px rgba(15, 23, 42, 0.04);
}

.hero-search-input {
    height: 58px;
    font-size: 1.05rem;
    padding-left: 50px;
    padding-right: 70px;
    background: #ffffff;
    border: 2px solid var(--border);
    border-radius: var(--radius-full);
}

.hero-search-input:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 4px rgba(79, 70, 229, 0.15);
}

.hero-search-box .search-icon {
    font-size: 1.25rem;
    left: 18px;
}

.hero-search-kbd {
    position: absolute;
    right: 18px;
    top: 50%;
    transform: translateY(-50%);
    font-family: var(--font-mono);
    font-size: 0.78rem;
    font-weight: 600;
    color: var(--text-light);
    background: var(--bg-card-subtle);
    border: 1px solid var(--border);
    border-radius: 6px;
    padding: 4px 8px;
    pointer-events: none;
}

/* Hero Trust Bar */
.hero-trust-bar {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-wrap: wrap;
    gap: 1.75rem;
    margin-top: 2.25rem;
    padding-top: 1.75rem;
    border-top: 1px dashed var(--border);
}

.hero-trust-item {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 0.88rem;
    font-weight: 600;
    color: var(--text-muted);
}

.trust-icon {
    font-size: 1.1rem;
}

/* Homepage Category Chips Grid */
.home-categories-section {
    padding: 2.5rem 0;
}

.category-chips-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.25rem;
}

.category-chip-card {
    background: #ffffff;
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 1.25rem;
    display: flex;
    align-items: center;
    gap: 1rem;
    transition: all var(--transition-fast);
}

.category-chip-card:hover {
    border-color: var(--primary-border);
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}

.chip-icon {
    width: 50px;
    height: 50px;
    background: var(--primary-light);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.6rem;
    flex-shrink: 0;
}

.chip-info {
    flex: 1;
    min-width: 0;
}

.chip-name {
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--text-main);
    margin-bottom: 2px;
}

.chip-count {
    font-size: 0.8rem;
    color: var(--text-muted);
    font-weight: 500;
}

.chip-arrow {
    font-size: 1.15rem;
    color: var(--text-light);
    transition: transform var(--transition-fast);
}

.category-chip-card:hover .chip-arrow {
    color: var(--primary);
    transform: translateX(4px);
}

/* Calculators Directory Grid & Filter Bar */
.home-directory-section {
    padding: 3rem 0;
}

.directory-filter-bar {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 2.25rem;
    align-items: center;
}

.filter-btn {
    background: #ffffff;
    border: 1px solid var(--border);
    padding: 9px 18px;
    border-radius: var(--radius-full);
    font-family: var(--font-sans);
    font-size: 0.88rem;
    font-weight: 600;
    color: var(--text-body);
    cursor: pointer;
    transition: all var(--transition-fast);
    display: inline-flex;
    align-items: center;
    gap: 8px;
    box-shadow: var(--shadow-xs);
}

.filter-btn .filter-pill-count {
    font-size: 0.75rem;
    font-weight: 700;
    background: var(--bg-card-subtle);
    color: var(--text-muted);
    padding: 1px 7px;
    border-radius: var(--radius-full);
}

.filter-btn:hover {
    background: var(--bg-card-subtle);
    border-color: var(--border-hover);
    color: var(--text-main);
}

.filter-btn.active {
    background: var(--primary);
    color: #ffffff;
    border-color: var(--primary);
    box-shadow: 0 4px 10px rgba(79, 70, 229, 0.25);
}

.filter-btn.active .filter-pill-count {
    background: rgba(255, 255, 255, 0.25);
    color: #ffffff;
}

/* Tools Grid & Rigid Baseline Alignment */
.tools-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 1.5rem;
    align-items: stretch;
}

.tool-card-item {
    display: flex;
    height: 100%;
}

.tool-card {
    background: #ffffff;
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    width: 100%;
    height: 100%;
    transition: all var(--transition-fast);
    box-shadow: var(--shadow-xs);
}

.tool-card:hover {
    border-color: var(--primary-border);
    box-shadow: var(--shadow-card-hover);
    transform: translateY(-3px);
}

.tool-card-body {
    display: flex;
    flex-direction: column;
    flex: 1;
}

.tool-card-top {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 1rem;
}

.tool-badge-icon {
    font-size: 1.7rem;
    width: 44px;
    height: 44px;
    background: var(--bg-card-subtle);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.category-tag {
    font-size: 0.74rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    padding: 4px 11px;
    background: var(--bg-card-subtle);
    color: var(--text-muted);
    border-radius: var(--radius-full);
}

.tool-card-title {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--text-main);
    margin-bottom: 0.5rem;
    line-height: 1.3;
}

.tool-card-desc {
    font-size: 0.92rem;
    color: var(--text-muted);
    line-height: 1.55;
    margin-bottom: 1.5rem;
    flex-grow: 1;
}

.tool-card-footer {
    margin-top: auto;
    width: 100%;
}

.tool-card-footer .btn {
    width: 100%;
}

/* Global Footer */
.site-footer {
    background: #090e17;
    color: #94a3b8;
    margin-top: 5rem;
    border-top: 1px solid #1e293b;
}

.footer-top {
    padding: 5rem 0 3.5rem;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2.2fr 1fr 1.2fr 1.2fr;
    gap: 3.5rem;
}

.footer-brand-logo .logo-title {
    color: #ffffff;
}

.footer-about {
    font-size: 0.92rem;
    color: #94a3b8;
    margin: 1.15rem 0 1.5rem;
    max-width: 420px;
    line-height: 1.65;
}

.footer-trust-chips {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.trust-chip {
    font-size: 0.82rem;
    color: #38bdf8;
    font-weight: 500;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    line-height: 1.4;
}

.trust-chip svg, .trust-chip .us-flag-svg {
    flex-shrink: 0;
    display: inline-block;
}

.footer-heading {
    color: #ffffff;
    font-size: 1.05rem;
    font-weight: 700;
    margin-bottom: 1.35rem;
    letter-spacing: -0.01em;
}

.footer-links li {
    margin-bottom: 0.85rem;
}

.footer-links a {
    color: #94a3b8;
    font-size: 0.91rem;
    transition: color var(--transition-fast);
}

.footer-links a:hover {
    color: #ffffff;
}

.footer-bottom {
    border-top: 1px solid #1e293b;
    padding: 1.75rem 0;
    background: #060910;
}

.footer-bottom-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 1.5rem;
}

.footer-bottom-left {
    max-width: 780px;
}

.copyright-text {
    font-size: 0.88rem;
    color: #94a3b8;
    margin-bottom: 0.35rem;
}

.footer-disclaimer-sub {
    font-size: 0.78rem;
    color: #64748b;
    line-height: 1.5;
    margin-bottom: 0;
}

.footer-status-pill {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 0.82rem;
    font-weight: 600;
    color: #a7f3d0;
    background: rgba(16, 185, 129, 0.12);
    border: 1px solid rgba(16, 185, 129, 0.25);
    padding: 6px 14px;
    border-radius: var(--radius-full);
    white-space: nowrap;
}

.status-dot {
    width: 8px;
    height: 8px;
    background: #10b981;
    border-radius: 50%;
    box-shadow: 0 0 8px #10b981;
}

/* Toast Notifications */
.omnicalc-toast {
    position: fixed;
    bottom: 24px;
    right: 24px;
    background: #0f172a;
    color: #ffffff;
    font-size: 0.9rem;
    font-weight: 600;
    padding: 12px 20px;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-xl);
    z-index: 9999;
    opacity: 0;
    transform: translateY(12px);
    transition: all var(--transition-normal);
    pointer-events: none;
    border: 1px solid rgba(255, 255, 255, 0.15);
}

.omnicalc-toast.show {
    opacity: 1;
    transform: translateY(0);
}

/* Informational & Legal Pages */
.legal-page-header {
    background: transparent;
    padding: 2.5rem 0 1.5rem;
    margin-bottom: 2rem;
    border-bottom: 1px solid var(--border);
}

.legal-page-title {
    font-size: 2.75rem;
    font-weight: 800;
    margin-bottom: 0.5rem;
    letter-spacing: -0.03em;
    color: var(--text-main);
}

.legal-page-date {
    font-size: 0.9rem;
    color: var(--text-muted);
    font-weight: 500;
}

.legal-content-container {
    max-width: 880px;
    background: #ffffff;
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 3rem;
    margin-bottom: 4rem;
    box-shadow: var(--shadow-xs);
}

.legal-content-container h2 {
    font-size: 1.6rem;
    font-weight: 800;
    margin: 2.25rem 0 1rem;
    border-bottom: 1px solid var(--border);
    padding-bottom: 0.5rem;
    letter-spacing: -0.02em;
    color: var(--text-main);
}

.legal-content-container h3 {
    font-size: 1.25rem;
    font-weight: 700;
    margin: 1.75rem 0 0.75rem;
    color: var(--text-main);
}

.legal-content-container p {
    font-size: 1.02rem;
    line-height: 1.75;
    color: var(--text-body);
    margin-bottom: 1.25rem;
}

.legal-content-container ul {
    list-style: disc;
    margin-left: 1.75rem;
    margin-bottom: 1.5rem;
}

.legal-content-container li {
    margin-bottom: 0.65rem;
    color: var(--text-body);
    line-height: 1.7;
}

/* Global Responsive Base */
html, body {
    overflow-x: hidden;
    max-width: 100vw;
}

/* Hide desktop keyboard shortcuts on touch screens */
@media (hover: none) and (pointer: coarse) {
    .hero-search-kbd, .search-kbd-hint {
        display: none !important;
    }
    .hero-search-input {
        padding-right: 20px !important;
    }
}

/* Tablet & Mobile Media Queries */
@media (max-width: 1024px) {
    .container {
        padding-left: 1.25rem;
        padding-right: 1.25rem;
    }
    .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: 2.5rem;
    }
}

@media (max-width: 768px) {
    .header-inner {
        height: 64px;
        gap: 1rem;
    }
    .search-bar-header, .primary-nav {
        display: none;
    }
    .mobile-menu-toggle {
        display: flex;
    }
    
    /* Hero Mobile Refinements */
    .hero-section {
        padding: 3.25rem 0 2.5rem;
    }
    .hero-title {
        font-size: clamp(2rem, 6.5vw + 0.5rem, 2.75rem);
        line-height: 1.18;
    }
    .hero-desc {
        font-size: 1.05rem;
        margin-bottom: 1.75rem;
    }
    .hero-search-input {
        height: 52px;
        font-size: 0.98rem;
    }
    .hero-trust-bar {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 0.9rem;
        text-align: left;
        margin-top: 1.75rem;
        padding-top: 1.5rem;
    }

    /* Horizontal Scroll Filter Bar for Mobile */
    .directory-filter-bar {
        display: flex;
        flex-wrap: nowrap;
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
        padding-bottom: 10px;
        margin-left: -1.25rem;
        margin-right: -1.25rem;
        padding-left: 1.25rem;
        padding-right: 1.25rem;
        scrollbar-width: none;
    }
    .directory-filter-bar::-webkit-scrollbar {
        display: none;
    }
    .filter-btn {
        flex-shrink: 0;
        white-space: nowrap;
        padding: 8px 16px;
    }

    /* Footer Mobile */
    .footer-top {
        padding: 3.5rem 0 2.5rem;
    }
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 2.25rem;
    }
    .footer-bottom-inner {
        flex-direction: column;
        align-items: flex-start;
        gap: 1.25rem;
    }
    .legal-content-container {
        padding: 1.75rem;
    }
    .legal-page-title {
        font-size: 2.1rem;
    }
}

@media (max-width: 640px) {
    .tools-grid {
        grid-template-columns: 1fr;
        gap: 1.25rem;
    }
    .category-chips-grid {
        grid-template-columns: 1fr;
        gap: 0.85rem;
    }
    .tool-card {
        padding: 1.25rem;
    }
    .tool-card-title {
        font-size: 1.15rem;
    }
    .tool-card-desc {
        font-size: 0.9rem;
        margin-bottom: 1.25rem;
    }
}

@media (max-width: 480px) {
    .container {
        padding-left: 1rem;
        padding-right: 1rem;
    }
    .header-inner .edition-badge {
        display: none; /* Keep top header clean and uncluttered on narrow phones */
    }
    .mobile-nav-drawer {
        width: 100vw;
        max-width: 100vw;
    }
    .hero-title {
        font-size: 1.95rem;
    }
    .hero-trust-bar {
        grid-template-columns: 1fr;
        gap: 0.75rem;
    }
    .directory-filter-bar {
        margin-left: -1rem;
        margin-right: -1rem;
        padding-left: 1rem;
        padding-right: 1rem;
    }
    .footer-grid {
        gap: 1.75rem;
    }
    .footer-links li {
        margin-bottom: 0.5rem;
    }
    .footer-about {
        font-size: 0.88rem;
    }
    .btn {
        padding: 12px 18px;
    }
    .omnicalc-toast {
        left: 16px;
        right: 16px;
        bottom: 16px;
        text-align: center;
    }
}

/* ==========================================================================
   Blog Hub, Article Cards, Reader, and Interactive Writer Modal
   ========================================================================== */

.nav-link.highlight-blog {
    color: var(--color-primary-600) !important;
    font-weight: 700 !important;
    display: inline-flex;
    align-items: center;
    gap: 4px;
    position: relative;
}

.nav-link.highlight-blog::after {
    content: 'NEW';
    font-size: 0.65rem;
    font-weight: 800;
    background: #ef4444;
    color: #ffffff;
    padding: 1px 5px;
    border-radius: 4px;
    margin-left: 4px;
    letter-spacing: 0.05em;
    vertical-align: middle;
}

.blog-hero {
    background: linear-gradient(135deg, #090d16 0%, #0f172a 50%, #1e1b4b 100%);
    padding: 4rem 0 3rem;
    color: #ffffff;
    position: relative;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.blog-hero-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
    flex-wrap: wrap;
    gap: 1.5rem;
}

.blog-hero-title {
    font-size: clamp(2.2rem, 5vw, 3.2rem);
    font-weight: 800;
    color: #ffffff;
    letter-spacing: -0.03em;
    margin-bottom: 0.75rem;
    line-height: 1.15;
}

.blog-hero-sub {
    font-size: 1.15rem;
    color: #94a3b8;
    max-width: 650px;
    line-height: 1.6;
}

.blog-write-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: linear-gradient(135deg, #2563eb, #3b82f6);
    color: #ffffff;
    font-weight: 700;
    padding: 12px 24px;
    border-radius: var(--radius-md);
    box-shadow: 0 4px 14px rgba(37, 99, 235, 0.4);
    cursor: pointer;
    border: none;
    transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

.blog-write-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(37, 99, 235, 0.5);
    color: #ffffff;
}

.blog-filter-section {
    padding: 1.5rem 0;
    background: #ffffff;
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 64px;
    z-index: 40;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.02);
}

.blog-filter-bar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 1rem;
}

.blog-categories-pills {
    display: flex;
    gap: 8px;
    overflow-x: auto;
    padding-bottom: 4px;
}

.blog-cat-pill {
    padding: 7px 16px;
    border-radius: var(--radius-full);
    font-size: 0.88rem;
    font-weight: 600;
    color: var(--text-muted);
    background: var(--bg-alt);
    border: 1px solid var(--border);
    cursor: pointer;
    white-space: nowrap;
    transition: all var(--transition-fast);
}

.blog-cat-pill:hover, .blog-cat-pill.active {
    background: var(--color-primary-600);
    color: #ffffff;
    border-color: var(--color-primary-600);
}

.blog-search-box {
    display: flex;
    align-items: center;
    background: var(--bg-alt);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: 6px 14px;
    gap: 8px;
    width: 280px;
}

.blog-search-box input {
    background: transparent;
    border: none;
    outline: none;
    font-size: 0.9rem;
    width: 100%;
}

.blog-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
    gap: 2rem;
    padding: 3rem 0 5rem;
}

.blog-card {
    background: #ffffff;
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    display: flex;
    flex-direction: column;
    box-shadow: var(--shadow-sm);
    transition: transform var(--transition-normal), box-shadow var(--transition-normal), border-color var(--transition-normal);
}

.blog-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
    border-color: var(--color-primary-300);
}

.blog-card-media {
    height: 180px;
    background: linear-gradient(135deg, #1e293b, #334155);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 3rem;
    position: relative;
    overflow: hidden;
}

.blog-card-badge {
    position: absolute;
    top: 14px;
    left: 14px;
    background: rgba(15, 23, 42, 0.85);
    backdrop-filter: blur(8px);
    color: #ffffff;
    font-size: 0.76rem;
    font-weight: 700;
    padding: 4px 10px;
    border-radius: var(--radius-full);
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

.blog-card-body {
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    flex-grow: 1;
}

.blog-card-meta {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 0.82rem;
    color: var(--text-muted);
    margin-bottom: 0.75rem;
}

.blog-card-title {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-main);
    line-height: 1.35;
    margin-bottom: 0.75rem;
}

.blog-card-title a {
    color: var(--text-main);
    transition: color var(--transition-fast);
}

.blog-card-title a:hover {
    color: var(--color-primary-600);
}

.blog-card-excerpt {
    font-size: 0.93rem;
    color: var(--text-body);
    line-height: 1.6;
    margin-bottom: 1.25rem;
    flex-grow: 1;
}

.blog-card-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-top: 1rem;
    border-top: 1px solid var(--border);
    font-size: 0.86rem;
}

.blog-author-wrap {
    display: flex;
    align-items: center;
    gap: 8px;
    font-weight: 600;
    color: var(--text-main);
}

.blog-author-avatar {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    background: var(--color-primary-100);
    color: var(--color-primary-700);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.75rem;
    font-weight: 800;
}

.blog-read-link {
    font-weight: 700;
    color: var(--color-primary-600);
    display: inline-flex;
    align-items: center;
    gap: 4px;
    transition: gap var(--transition-fast);
}

.blog-card:hover .blog-read-link {
    gap: 8px;
}

/* User-Written Blog Tag */
.user-post-badge {
    background: #10b981 !important;
    color: #ffffff !important;
}

/* Interactive Modal for Writing Blogs */
.blog-modal-backdrop {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: rgba(15, 23, 42, 0.7);
    backdrop-filter: blur(6px);
    z-index: 10000;
    display: none;
    align-items: center;
    justify-content: center;
    padding: 1.5rem;
}

.blog-modal-backdrop.open {
    display: flex;
}

.blog-modal-box {
    background: #ffffff;
    width: 100%;
    max-width: 820px;
    max-height: 90vh;
    overflow-y: auto;
    border-radius: var(--radius-xl);
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
    display: flex;
    flex-direction: column;
    animation: modalSlideUp 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

@keyframes modalSlideUp {
    from {
        opacity: 0;
        transform: translateY(20px) scale(0.97);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

.blog-modal-header {
    padding: 1.5rem 2rem;
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: #f8fafc;
    position: sticky;
    top: 0;
    z-index: 10;
}

.blog-modal-header h3 {
    margin: 0;
    font-size: 1.4rem;
    font-weight: 800;
    color: var(--text-main);
    display: flex;
    align-items: center;
    gap: 8px;
}

.blog-modal-close {
    background: none;
    border: none;
    font-size: 1.3rem;
    cursor: pointer;
    color: var(--text-muted);
    padding: 4px 8px;
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
}

.blog-modal-close:hover {
    color: #ef4444;
    background: #fee2e2;
}

.blog-modal-body {
    padding: 2rem;
}

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

.editor-form-group label {
    display: block;
    font-size: 0.9rem;
    font-weight: 700;
    color: var(--text-main);
    margin-bottom: 0.4rem;
}

.editor-form-control {
    width: 100%;
    padding: 10px 14px;
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    font-size: 0.95rem;
    outline: none;
    font-family: inherit;
    transition: border-color var(--transition-fast);
}

.editor-form-control:focus {
    border-color: var(--color-primary-500);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.12);
}

.editor-row-2 {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}

.editor-row-3 {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: 1rem;
}

.editor-toolbar {
    display: flex;
    gap: 4px;
    background: #f1f5f9;
    padding: 6px;
    border-radius: var(--radius-md) var(--radius-md) 0 0;
    border: 1px solid var(--border);
    border-bottom: none;
    flex-wrap: wrap;
}

.editor-btn {
    background: #ffffff;
    border: 1px solid #cbd5e1;
    border-radius: 4px;
    padding: 4px 10px;
    font-size: 0.85rem;
    font-weight: 600;
    cursor: pointer;
    color: var(--text-main);
    transition: background var(--transition-fast);
}

.editor-btn:hover {
    background: #e2e8f0;
}

.editor-textarea {
    width: 100%;
    min-height: 220px;
    padding: 14px;
    border: 1px solid var(--border);
    border-radius: 0 0 var(--radius-md) var(--radius-md);
    font-family: var(--font-mono, monospace);
    font-size: 0.92rem;
    line-height: 1.6;
    outline: none;
    resize: vertical;
}

.editor-preview-tab {
    background: #f8fafc;
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: 1.5rem;
    margin-top: 1rem;
    max-height: 250px;
    overflow-y: auto;
}

.blog-modal-footer {
    padding: 1.25rem 2rem;
    border-top: 1px solid var(--border);
    background: #f8fafc;
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 1rem;
    position: sticky;
    bottom: 0;
    z-index: 10;
}

.btn-secondary {
    background: #e2e8f0;
    color: var(--text-main);
    font-weight: 600;
    border: none;
    padding: 10px 18px;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: background var(--transition-fast);
}

.btn-secondary:hover {
    background: #cbd5e1;
}

/* Article Reader Template Styles */
.article-header {
    background: #f8fafc;
    padding: 3.5rem 0 2.5rem;
    border-bottom: 1px solid var(--border);
}

.article-breadcrumb {
    font-size: 0.86rem;
    color: var(--text-muted);
    margin-bottom: 1.25rem;
}

.article-title-h1 {
    font-size: clamp(2rem, 4vw, 2.75rem);
    font-weight: 800;
    color: var(--text-main);
    line-height: 1.25;
    letter-spacing: -0.025em;
    margin-bottom: 1.25rem;
}

.article-meta-bar {
    display: flex;
    align-items: center;
    gap: 16px;
    font-size: 0.9rem;
    color: var(--text-muted);
    flex-wrap: wrap;
}

.article-container {
    max-width: 860px;
    margin: 3rem auto 5rem;
    padding: 0 1.25rem;
}

.article-content {
    font-size: 1.08rem;
    line-height: 1.8;
    color: #334155;
}

.article-content h2 {
    font-size: 1.7rem;
    font-weight: 800;
    color: var(--text-main);
    margin: 2.5rem 0 1rem;
    letter-spacing: -0.02em;
    border-bottom: 1px solid var(--border);
    padding-bottom: 0.4rem;
}

.article-content h3 {
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--text-main);
    margin: 1.75rem 0 0.75rem;
}

.article-content p {
    margin-bottom: 1.5rem;
}

.article-content ul, .article-content ol {
    margin: 1rem 0 1.5rem 1.75rem;
}

.article-content li {
    margin-bottom: 0.6rem;
}

.article-content blockquote {
    border-left: 4px solid var(--color-primary-500);
    background: #eff6ff;
    padding: 1rem 1.5rem;
    margin: 1.75rem 0;
    border-radius: 0 var(--radius-md) var(--radius-md) 0;
    font-style: italic;
    color: #1e3a8a;
}

.article-content code {
    background: #f1f5f9;
    padding: 2px 6px;
    border-radius: 4px;
    font-size: 0.9em;
    color: #0f172a;
}

.article-share-box {
    margin-top: 3rem;
    padding: 1.5rem;
    background: #f8fafc;
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 1rem;
}

/* Natural Search Keyword Pills */
.natural-kw-pill {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: #f1f5f9;
    color: #334155;
    font-size: 0.82rem;
    font-weight: 500;
    padding: 6px 12px;
    border-radius: var(--radius-full);
    border: 1px solid var(--border);
    transition: all var(--transition-fast);
}

.natural-kw-pill:hover {
    background: var(--color-primary-50, #eff6ff);
    color: var(--color-primary-700, #1d4ed8);
    border-color: var(--color-primary-200, #bfdbfe);
}

.tag-pill {
    display: inline-block;
    background: #f8fafc;
    color: #64748b;
    font-size: 0.76rem;
    font-weight: 500;
    padding: 3px 8px;
    border-radius: 4px;
    border: 1px solid #e2e8f0;
    white-space: nowrap;
}

/* ========================================================
   Contact Page & Interactive Contact Form Styles
   ======================================================== */
.contact-layout-wrapper {
    display: grid;
    grid-template-columns: 1.6fr 1fr;
    gap: 2rem;
    margin-top: 1.5rem;
    margin-bottom: 3.5rem;
    align-items: start;
}

@media (max-width: 900px) {
    .contact-layout-wrapper {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
}

.contact-card {
    background: #ffffff;
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 2.25rem;
    box-shadow: var(--shadow-md);
}

.contact-card-header {
    margin-bottom: 1.75rem;
}

.contact-card-title {
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--text-main);
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 0.35rem;
}

.contact-card-subtitle {
    font-size: 0.95rem;
    color: var(--text-muted);
}

.contact-form-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.25rem;
    margin-bottom: 0.25rem;
}

@media (max-width: 600px) {
    .contact-form-grid {
        grid-template-columns: 1fr;
        gap: 0;
    }
}

.contact-field-group {
    display: flex;
    flex-direction: column;
    gap: 0.45rem;
    margin-bottom: 1.25rem;
}

.contact-label {
    font-size: 0.88rem;
    font-weight: 600;
    color: var(--text-main);
    display: flex;
    align-items: center;
    gap: 4px;
}

.contact-required {
    color: #ef4444;
}

.contact-input,
.contact-select,
.contact-textarea {
    width: 100%;
    font-family: inherit;
    font-size: 0.95rem;
    color: var(--text-main);
    background: #f8fafc;
    border: 1.5px solid var(--border);
    border-radius: var(--radius-sm);
    padding: 0.75rem 1rem;
    transition: all var(--transition-fast);
    outline: none;
}

.contact-input:focus,
.contact-select:focus,
.contact-textarea:focus {
    background: #ffffff;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(67, 56, 202, 0.15);
}

.contact-textarea {
    min-height: 140px;
    resize: vertical;
    line-height: 1.5;
}

.contact-submit-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    width: 100%;
    padding: 0.9rem 1.5rem;
    font-size: 1rem;
    font-weight: 600;
    color: #ffffff;
    background: var(--primary-gradient);
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-normal);
}

.contact-submit-btn:hover {
    transform: translateY(-1px);
    box-shadow: var(--shadow-md), var(--shadow-glow);
    filter: brightness(1.05);
}

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

.contact-alert-success {
    display: none;
    background: #ecfdf5;
    border: 1.5px solid #a7f3d0;
    color: #065f46;
    padding: 1.25rem;
    border-radius: var(--radius-md);
    margin-bottom: 1.5rem;
}

.contact-alert-success.active {
    display: flex;
    align-items: flex-start;
    gap: 12px;
}

.contact-alert-icon {
    font-size: 1.5rem;
    line-height: 1;
}

.contact-alert-text strong {
    display: block;
    font-size: 1.05rem;
    margin-bottom: 0.25rem;
}

.contact-sidebar-widget {
    background: #ffffff;
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 1.75rem;
    box-shadow: var(--shadow-sm);
    margin-bottom: 1.25rem;
}

.contact-sidebar-widget h3 {
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--text-main);
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 0.75rem;
}

.contact-info-item {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    margin-top: 1rem;
    font-size: 0.9rem;
    color: var(--text-body);
    line-height: 1.5;
}

.contact-info-icon {
    font-size: 1.1rem;
    flex-shrink: 0;
}

.contact-email-badge {
    display: inline-block;
    background: var(--primary-light);
    color: var(--primary);
    font-weight: 600;
    padding: 6px 12px;
    border-radius: var(--radius-sm);
    margin-top: 0.25rem;
    word-break: break-all;
    text-decoration: none;
}

.contact-email-badge:hover {
    background: #e0e7ff;
    text-decoration: underline;
}