/* ==========================================================================
   TM Assistance Services - Enterprise B2B Technology Support Design System
   Aesthetic: Established B2B SaaS / Technology Enterprise (Clean, Restrained, High-Credibility)
   ========================================================================== */

:root {
    /* Color Palette - Restrained Corporate Slate & Royal Blue */
    --bg-main: #ffffff;
    --bg-surface: #f8fafc;
    --bg-card: #ffffff;
    --bg-subtle: #f1f5f9;
    --bg-dark: #0f172a;
    --bg-dark-surface: #1e293b;
    
    /* Typography Colors - Deep Charcoal & Slate */
    --text-primary: #0f172a;
    --text-secondary: #334155;
    --text-muted: #64748b;
    --text-subtle: #94a3b8;
    --text-white: #ffffff;

    /* Primary Corporate Accent - Royal Blue & Muted Indigo */
    --accent-primary: #1e40af;
    --accent-primary-hover: #1e3a8a;
    --accent-blue: #2563eb;
    --accent-blue-light: #eff6ff;
    --accent-indigo-light: #e0e7ff;
    
    /* System Status Pills */
    --status-success-bg: #f0fdf4;
    --status-success-border: #bbf7d0;
    --status-success-text: #166534;
    --status-info-bg: #f0f9ff;
    --status-info-border: #bae6fd;
    --status-info-text: #075985;
    --status-warning-bg: #fffbeb;
    --status-warning-border: #fef3c7;
    --status-warning-text: #92400e;

    /* Subtle Architectural Borders */
    --border-color: #e2e8f0;
    --border-light: #f1f5f9;
    --border-dark: #334155;
    --border-focus: #2563eb;

    /* Restrained Elevation Shadows */
    --shadow-subtle: 0 1px 2px 0 rgba(15, 23, 42, 0.05);
    --shadow-card: 0 1px 3px 0 rgba(15, 23, 42, 0.04), 0 1px 2px -1px rgba(15, 23, 42, 0.04);
    --shadow-elevated: 0 10px 25px -3px rgba(15, 23, 42, 0.08), 0 4px 10px -2px rgba(15, 23, 42, 0.04);
    --shadow-dropdown: 0 16px 36px -4px rgba(15, 23, 42, 0.12), 0 6px 16px -2px rgba(15, 23, 42, 0.06);

    /* Layout Geometry */
    --max-width: 1200px;
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
    --transition: all 0.2s cubic-bezier(0.16, 1, 0.3, 1);
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
    background-color: var(--bg-main);
    color: var(--text-secondary);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
}

/* Typography Hierarchy */
h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    color: var(--text-primary);
    line-height: 1.2;
    letter-spacing: -0.025em;
}

h1 { font-size: 2.75rem; }
h2 { font-size: 2rem; }
h3 { font-size: 1.35rem; }
h4 { font-size: 1.1rem; }

p {
    color: var(--text-secondary);
    font-size: 1rem;
    line-height: 1.65;
}

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

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

ul {
    list-style: none;
}

/* Container & Grid Utilities */
.container {
    width: 100%;
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 1.5rem;
}

.grid {
    display: grid;
    gap: 2rem;
}

.grid-2-col { grid-template-columns: repeat(2, 1fr); }
.grid-3-col { grid-template-columns: repeat(3, 1fr); }
.grid-4-col { grid-template-columns: repeat(4, 1fr); }

.text-center { text-align: center; }
.text-left { text-align: left; }
.full-width { width: 100%; }

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    font-family: 'Inter', sans-serif;
    font-weight: 600;
    font-size: 0.92rem;
    padding: 0.7rem 1.4rem;
    border-radius: var(--radius-md);
    border: 1px solid transparent;
    cursor: pointer;
    transition: var(--transition);
    text-decoration: none;
    line-height: 1.2;
    white-space: nowrap;
}

.btn-primary {
    background-color: var(--bg-dark);
    color: var(--text-white);
    box-shadow: var(--shadow-subtle);
}

.btn-primary:hover {
    background-color: var(--accent-primary);
    color: var(--text-white);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(30, 64, 175, 0.2);
}

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

.btn-outline:hover {
    border-color: var(--border-dark);
    background-color: var(--bg-surface);
    color: var(--text-primary);
}

.btn-lg {
    padding: 0.85rem 1.75rem;
    font-size: 0.98rem;
}

/* Badges & Section Category Eyebrows */
.eyebrow-tag {
    display: inline-block;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    font-size: 0.75rem;
    font-weight: 700;
    color: var(--accent-primary);
    margin-bottom: 0.75rem;
}

.badge-pill {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.35rem 0.8rem;
    border-radius: var(--radius-sm);
    background-color: var(--bg-surface);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    font-size: 0.82rem;
    font-weight: 600;
    margin-bottom: 1.25rem;
}

.badge-pill.mini {
    padding: 0.2rem 0.55rem;
    font-size: 0.75rem;
    margin-bottom: 0;
}

.dot {
    width: 7px;
    height: 7px;
    border-radius: 50%;
    display: inline-block;
}

.dot.green {
    background-color: #16a34a;
}

/* Structural Cards */
.card {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 2rem;
    box-shadow: var(--shadow-card);
    transition: var(--transition);
}

.card:hover {
    border-color: #cbd5e1;
    box-shadow: var(--shadow-elevated);
}

/* Section Containers */
.section {
    padding: 5.5rem 0;
}

.section-light {
    background-color: var(--bg-surface);
    border-top: 1px solid var(--border-light);
    border-bottom: 1px solid var(--border-light);
}

.section-white {
    background-color: var(--bg-main);
}

.section-header {
    max-width: 700px;
    margin: 0 auto 3.5rem auto;
}

.section-title {
    font-size: 2.15rem;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.section-description {
    font-size: 1.05rem;
    color: var(--text-muted);
}

/* Breadcrumb Navigation */
.breadcrumbs {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-bottom: 1rem;
}

.breadcrumbs a {
    color: var(--text-muted);
}

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

.breadcrumbs span.current {
    color: var(--text-primary);
    font-weight: 600;
}

/* Sub-page Header Banner */
.page-header-section {
    padding: 4rem 0 3rem 0;
    background-color: var(--bg-surface);
    border-bottom: 1px solid var(--border-color);
}

.page-header-title {
    font-size: 2.5rem;
    margin-bottom: 0.75rem;
}

.page-header-desc {
    font-size: 1.1rem;
    color: var(--text-muted);
    max-width: 760px;
}

/* Top Banner & Header Navigation */
.top-banner {
    background-color: var(--bg-dark);
    color: #cbd5e1;
    padding: 0.45rem 0;
    font-size: 0.82rem;
    border-bottom: 1px solid rgba(255,255,255,0.08);
}

.top-banner-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
}

.top-banner-link {
    color: #93c5fd;
    font-weight: 600;
}

.top-banner-link:hover {
    color: #ffffff;
    text-decoration: underline;
}

.navbar {
    position: sticky;
    top: 0;
    z-index: 100;
    background-color: rgba(255, 255, 255, 0.96);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
}

.nav-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 64px;
}

.brand-logo {
    display: flex;
    align-items: center;
    gap: 0.65rem;
    color: var(--text-primary);
    text-decoration: none;
}

.logo-icon {
    width: 34px;
    height: 34px;
    background-color: var(--bg-dark);
    color: white;
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
}

.logo-text {
    display: flex;
    flex-direction: column;
    line-height: 1.1;
}

.logo-title {
    font-weight: 700;
    font-size: 1.05rem;
    color: var(--text-primary);
    letter-spacing: -0.02em;
}

.logo-title.white {
    color: var(--text-white);
}

.logo-sub {
    font-size: 0.72rem;
    font-weight: 600;
    color: var(--accent-primary);
    text-transform: uppercase;
    letter-spacing: 0.06em;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 1.75rem;
}

.nav-item {
    position: relative;
}

.nav-link {
    font-weight: 500;
    font-size: 0.9rem;
    color: var(--text-secondary);
    padding: 0.5rem 0;
    display: inline-flex;
    align-items: center;
    gap: 0.3rem;
}

.nav-link:hover, .nav-link.active {
    color: var(--accent-primary);
}

.dropdown-menu {
    position: absolute;
    top: 100%;
    left: 0;
    width: 250px;
    background: #ffffff;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-dropdown);
    padding: 0.5rem;
    opacity: 0;
    visibility: hidden;
    transform: translateY(6px);
    transition: var(--transition);
    z-index: 120;
}

.nav-item.has-dropdown:hover .dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.dropdown-item {
    display: block;
    padding: 0.55rem 0.85rem;
    font-size: 0.85rem;
    color: var(--text-secondary);
    border-radius: var(--radius-sm);
    font-weight: 500;
}

.dropdown-item:hover, .dropdown-item.active {
    background-color: var(--bg-surface);
    color: var(--accent-primary);
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.mobile-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    color: var(--text-primary);
    padding: 0.5rem;
}

/* Mobile Drawer Menu */
.mobile-drawer {
    position: fixed;
    top: 0;
    right: -100%;
    width: 320px;
    height: 100vh;
    background-color: var(--bg-main);
    z-index: 200;
    box-shadow: var(--shadow-dropdown);
    transition: right 0.3s ease;
    overflow-y: auto;
}

.mobile-drawer.open { right: 0; }

.mobile-drawer-inner {
    display: flex;
    flex-direction: column;
    height: 100%;
    padding: 2rem 1.5rem;
}

.drawer-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 2rem;
}

.drawer-close {
    background: none;
    border: none;
    font-size: 1.8rem;
    cursor: pointer;
    color: var(--text-muted);
    line-height: 1;
}

.mobile-nav-links {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.mobile-link {
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--text-primary);
    padding: 0.4rem 0;
}

.mobile-link-sub {
    font-size: 0.85rem;
    color: var(--text-secondary);
    padding-left: 0.8rem;
}

.drawer-footer {
    margin-top: auto;
    padding-top: 1.5rem;
}

.drawer-backdrop {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background-color: rgba(15, 23, 42, 0.4);
    z-index: 150;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease;
}

.drawer-backdrop.open {
    opacity: 1;
    pointer-events: auto;
}

/* Hero Section */
.hero-section {
    padding: 4.5rem 0 5.5rem 0;
    background-color: var(--bg-main);
    border-bottom: 1px solid var(--border-color);
}

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

.hero-title {
    font-size: 2.75rem;
    margin-bottom: 1.25rem;
    letter-spacing: -0.03em;
    color: var(--text-primary);
}

.hero-description {
    font-size: 1.1rem;
    color: var(--text-muted);
    margin-bottom: 2rem;
    line-height: 1.65;
}

.hero-actions {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 2.5rem;
    flex-wrap: wrap;
}

.hero-pillars {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--border-color);
}

.pillar-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.88rem;
    font-weight: 600;
    color: var(--text-secondary);
}

.pillar-item svg {
    color: var(--accent-primary);
    flex-shrink: 0;
}

/* Hero Dashboard Card */
.hero-visual {
    position: relative;
}

.hero-glass-card {
    background: #ffffff;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-elevated);
    overflow: hidden;
}

.hero-glass-card.main-card {
    padding: 1.5rem;
}

.card-header-bar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-bottom: 0.8rem;
    border-bottom: 1px solid var(--border-light);
    margin-bottom: 1.25rem;
}

.window-dots {
    display: flex;
    gap: 6px;
}

.window-dots span {
    width: 9px;
    height: 9px;
    border-radius: 50%;
    background-color: #cbd5e1;
}

.card-title-tag {
    font-size: 0.75rem;
    font-weight: 700;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.status-summary-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
    margin-bottom: 1.25rem;
}

.status-mini-card {
    background-color: var(--bg-surface);
    border-radius: var(--radius-md);
    padding: 0.9rem;
    border: 1px solid var(--border-light);
}

.status-label {
    display: block;
    font-size: 0.75rem;
    color: var(--text-muted);
    font-weight: 500;
}

.status-value {
    display: block;
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--text-primary);
    margin: 0.15rem 0;
}

.status-value.positive { color: #16a34a; }

.status-sub {
    font-size: 0.72rem;
    color: var(--text-muted);
}

/* Feed List */
.hero-feed-preview {
    background-color: var(--bg-main);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-md);
    padding: 0.9rem;
}

.feed-header {
    font-size: 0.75rem;
    font-weight: 700;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 0.75rem;
}

.feed-list {
    display: flex;
    flex-direction: column;
    gap: 0.6rem;
}

.feed-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.5rem 0.6rem;
    background-color: var(--bg-surface);
    border-radius: var(--radius-sm);
}

.feed-icon {
    width: 26px;
    height: 26px;
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.feed-icon.blue { background-color: #dbeafe; color: var(--accent-primary); }
.feed-icon.indigo { background-color: #e0e7ff; color: #4338ca; }
.feed-icon.slate { background-color: #e2e8f0; color: #475569; }

.feed-details {
    flex: 1;
    display: flex;
    flex-direction: column;
    min-width: 0;
}

.feed-title {
    font-size: 0.82rem;
    font-weight: 600;
    color: var(--text-primary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.feed-meta {
    font-size: 0.7rem;
    color: var(--text-muted);
}

.feed-badge {
    font-size: 0.7rem;
    font-weight: 600;
    padding: 0.15rem 0.45rem;
    border-radius: 4px;
}

.feed-badge.success { background-color: var(--status-success-bg); border: 1px solid var(--status-success-border); color: var(--status-success-text); }
.feed-badge.info { background-color: var(--status-info-bg); border: 1px solid var(--status-info-border); color: var(--status-info-text); }

/* Floating Accent Card */
.hero-glass-card.floating-card {
    position: absolute;
    bottom: -18px;
    left: -18px;
    padding: 0.9rem 1.15rem;
    display: flex;
    align-items: center;
    gap: 0.8rem;
    background: #ffffff;
    box-shadow: var(--shadow-elevated);
    border: 1px solid var(--border-color);
}

.float-icon {
    width: 32px;
    height: 32px;
    border-radius: var(--radius-sm);
    background-color: var(--bg-surface);
    color: var(--accent-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.float-title {
    display: block;
    font-size: 0.82rem;
    color: var(--text-primary);
}

.float-sub {
    display: block;
    font-size: 0.72rem;
    color: var(--text-muted);
}

/* Service Cards */
.services-grid {
    align-items: stretch;
}

.service-card {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 2rem;
    box-shadow: var(--shadow-card);
    transition: var(--transition);
    display: flex;
    flex-direction: column;
}

.service-card:hover {
    transform: translateY(-3px);
    border-color: #cbd5e1;
    box-shadow: var(--shadow-elevated);
}

.service-icon {
    width: 44px;
    height: 44px;
    border-radius: var(--radius-md);
    background-color: var(--bg-surface);
    border: 1px solid var(--border-color);
    color: var(--accent-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.25rem;
}

.service-title {
    font-size: 1.2rem;
    margin-bottom: 0.65rem;
}

.service-text {
    font-size: 0.92rem;
    color: var(--text-muted);
    margin-bottom: 1.5rem;
    flex: 1;
}

.service-feature-list {
    border-top: 1px solid var(--border-light);
    padding-top: 1rem;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.service-feature-list li {
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--text-secondary);
    position: relative;
    padding-left: 1.25rem;
}

.service-feature-list li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--accent-primary);
    font-weight: 700;
}

/* Sub-page Specific Content Grid */
.detail-content-grid {
    grid-template-columns: 2.2fr 1fr;
    align-items: start;
}

.detail-main-card {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 2.5rem;
    box-shadow: var(--shadow-card);
}

.detail-section-title {
    font-size: 1.4rem;
    margin-bottom: 1rem;
    padding-bottom: 0.5rem;
    border-bottom: 1px solid var(--border-light);
}

.detail-p {
    font-size: 1rem;
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
    line-height: 1.7;
}

.check-list-large {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    margin-bottom: 2rem;
}

.check-list-large li {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    font-size: 0.95rem;
}

.check-list-large svg {
    color: var(--accent-primary);
    flex-shrink: 0;
    margin-top: 0.25rem;
}

.sidebar-card {
    background-color: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 1.5rem;
}

.sidebar-title {
    font-size: 1.05rem;
    margin-bottom: 1rem;
}

.sidebar-nav {
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
}

.sidebar-link {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.55rem 0.85rem;
    border-radius: var(--radius-sm);
    font-size: 0.88rem;
    color: var(--text-secondary);
    font-weight: 500;
    background-color: var(--bg-main);
    border: 1px solid var(--border-light);
}

.sidebar-link:hover, .sidebar-link.active {
    border-color: var(--accent-primary);
    color: var(--accent-primary);
    background-color: var(--bg-surface);
}

/* Process Timeline Step Cards */
.process-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.25rem;
    margin-top: 1.75rem;
}

.process-step-card {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 1.25rem;
}

.process-step-num {
    font-size: 1.25rem;
    font-weight: 800;
    color: var(--accent-primary);
    margin-bottom: 0.4rem;
}

.process-step-title {
    font-size: 0.95rem;
    margin-bottom: 0.35rem;
}

.process-step-desc {
    font-size: 0.82rem;
    color: var(--text-muted);
}

/* Scope Matrix Table */
.scope-matrix-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.88rem;
    text-align: left;
}

.scope-matrix-table th, .scope-matrix-table td {
    padding: 0.9rem 1.1rem;
    border-bottom: 1px solid var(--border-color);
}

.scope-matrix-table th {
    background-color: var(--bg-surface);
    color: var(--text-primary);
    font-weight: 700;
}

/* Support Scope Estimator Section */
.estimator-card {
    background-color: var(--bg-card);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-card);
    padding: 2.5rem;
    border: 1px solid var(--border-color);
}

.estimator-grid {
    align-items: center;
    gap: 3rem;
}

.control-group {
    margin-bottom: 1.6rem;
}

.control-label-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 0.5rem;
}

.control-label-row label {
    font-weight: 600;
    color: var(--text-primary);
    font-size: 0.92rem;
}

.control-value-badge {
    background-color: var(--bg-surface);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    font-weight: 700;
    font-size: 0.82rem;
    padding: 0.15rem 0.5rem;
    border-radius: var(--radius-sm);
}

.range-slider {
    width: 100%;
    height: 6px;
    border-radius: 3px;
    background-color: var(--bg-subtle);
    outline: none;
    accent-color: var(--accent-primary);
    cursor: pointer;
}

.range-labels {
    display: flex;
    justify-content: space-between;
    font-size: 0.72rem;
    color: var(--text-muted);
    margin-top: 0.35rem;
}

.group-title {
    display: block;
    font-weight: 600;
    color: var(--text-primary);
    font-size: 0.92rem;
    margin-bottom: 0.75rem;
}

.checkbox-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 0.65rem;
}

.checkbox-card {
    display: flex;
    align-items: center;
    gap: 0.55rem;
    background-color: var(--bg-surface);
    border: 1px solid var(--border-color);
    padding: 0.55rem 0.75rem;
    border-radius: var(--radius-md);
    cursor: pointer;
    font-size: 0.82rem;
    transition: var(--transition);
}

.checkbox-card:hover {
    border-color: var(--accent-primary);
}

.checkbox-card input[type="checkbox"] {
    accent-color: var(--accent-primary);
    width: 15px;
    height: 15px;
}

/* Estimator Result Box */
.estimator-result-box {
    background-color: var(--bg-dark);
    color: var(--text-white);
    border-radius: var(--radius-lg);
    padding: 2rem;
    box-shadow: var(--shadow-elevated);
}

.result-box-title {
    color: var(--text-white);
    font-size: 1.15rem;
    margin-bottom: 0.85rem;
}

.result-tier-badge {
    display: inline-block;
    background-color: var(--accent-primary);
    color: var(--text-white);
    font-size: 0.85rem;
    font-weight: 700;
    padding: 0.35rem 0.8rem;
    border-radius: var(--radius-sm);
    margin-bottom: 1.25rem;
}

.result-metrics {
    display: flex;
    flex-direction: column;
    gap: 0.8rem;
    margin-bottom: 1.75rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    padding: 1.1rem 0;
}

.metric-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.88rem;
}

.metric-name { color: #94a3b8; }
.metric-val { font-weight: 600; color: #ffffff; }

.estimator-hint {
    font-size: 0.78rem;
    color: #94a3b8;
    margin-bottom: 0.75rem;
    text-align: center;
}

/* Portal Demo Section */
.portal-demo-card {
    padding: 0;
    overflow: hidden;
}

.portal-header {
    background-color: var(--bg-dark);
    color: var(--text-white);
    padding: 0.9rem 1.35rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 1rem;
}

.portal-branding {
    display: flex;
    align-items: center;
    gap: 0.55rem;
    font-weight: 600;
    font-size: 0.88rem;
}

.portal-logo-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background-color: #38bdf8;
    display: inline-block;
}

.portal-tabs {
    display: flex;
    gap: 0.4rem;
}

.portal-tab {
    background: transparent;
    border: 1px solid rgba(255, 255, 255, 0.15);
    color: #94a3b8;
    padding: 0.35rem 0.8rem;
    border-radius: var(--radius-sm);
    font-size: 0.82rem;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
}

.portal-tab:hover, .portal-tab.active {
    background-color: var(--accent-primary);
    border-color: var(--accent-primary);
    color: #ffffff;
}

.portal-tab-content {
    display: none;
    padding: 1.35rem;
}

.portal-tab-content.active { display: block; }

.table-responsive {
    width: 100%;
    overflow-x: auto;
}

.portal-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.85rem;
    text-align: left;
}

.portal-table th {
    background-color: var(--bg-surface);
    color: var(--text-primary);
    font-weight: 600;
    padding: 0.75rem 0.9rem;
    border-bottom: 1px solid var(--border-color);
}

.portal-table td {
    padding: 0.85rem 0.9rem;
    border-bottom: 1px solid var(--border-light);
    color: var(--text-secondary);
    vertical-align: middle;
}

.portal-table code {
    background-color: var(--bg-subtle);
    padding: 0.15rem 0.35rem;
    border-radius: 3px;
    font-family: monospace;
    font-size: 0.78rem;
}

.table-sub {
    font-size: 0.75rem;
    color: var(--text-muted);
    margin-top: 0.1rem;
}

/* Status Badges */
.badge-tag {
    display: inline-block;
    padding: 0.15rem 0.5rem;
    border-radius: 3px;
    font-size: 0.72rem;
    font-weight: 600;
}

.priority-low { background-color: #f1f5f9; color: #475569; }
.priority-med { background-color: #fef3c7; color: #92400e; }
.priority-high { background-color: #fee2e2; color: #991b1b; }

.status-progress { background-color: var(--status-info-bg); border: 1px solid var(--status-info-border); color: var(--status-info-text); }
.status-scheduled { background-color: #f3e8ff; color: #6b21a8; }
.status-escalated { background-color: #ffedd5; color: #c2410c; }
.status-active { background-color: var(--status-success-bg); border: 1px solid var(--status-success-border); color: var(--status-success-text); }
.status-spare { background-color: #f1f5f9; color: #475569; }

/* Demo Form in Portal */
.demo-form-container {
    max-width: 580px;
    margin: 0 auto;
    padding: 0.75rem 0;
}

.demo-form-title { font-size: 1.05rem; margin-bottom: 0.2rem; }
.demo-form-sub { font-size: 0.82rem; color: var(--text-muted); margin-bottom: 1.25rem; }

/* Legal Pages */
.legal-card {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 2.5rem;
    box-shadow: var(--shadow-card);
}

.legal-section { margin-bottom: 2rem; }
.legal-section h2 { font-size: 1.3rem; margin-bottom: 0.8rem; color: var(--text-primary); }
.legal-section p { font-size: 0.95rem; color: var(--text-secondary); margin-bottom: 0.8rem; line-height: 1.65; }
.legal-section ul { list-style: disc; margin-left: 1.5rem; margin-bottom: 0.8rem; color: var(--text-secondary); }
.legal-section ul li { margin-bottom: 0.4rem; font-size: 0.92rem; }

/* Engagement Models Section */
.models-grid { align-items: stretch; }

.model-card {
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.model-header {
    border-bottom: 1px solid var(--border-light);
    padding-bottom: 1.25rem;
    margin-bottom: 1.25rem;
}

.model-badge {
    display: inline-block;
    background-color: var(--bg-surface);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    font-size: 0.72rem;
    font-weight: 700;
    padding: 0.15rem 0.55rem;
    border-radius: var(--radius-sm);
    margin-bottom: 0.75rem;
}

.model-badge.outline {
    background-color: transparent;
    border: 1px solid var(--border-color);
    color: var(--text-muted);
}

.model-title { font-size: 1.25rem; margin-bottom: 0.4rem; }
.model-sub { font-size: 0.85rem; color: var(--text-muted); }

.model-list {
    display: flex;
    flex-direction: column;
    gap: 0.7rem;
    margin-bottom: 1.75rem;
}

.model-list li {
    font-size: 0.85rem;
    color: var(--text-secondary);
    display: flex;
    align-items: flex-start;
    gap: 0.55rem;
}

.model-list li svg {
    color: var(--accent-primary);
    flex-shrink: 0;
    margin-top: 0.15rem;
}

.model-footer { margin-top: auto; }

/* Operational Principles Section */
.standards-grid { align-items: center; }

.standards-text {
    font-size: 1rem;
    color: var(--text-muted);
    margin-bottom: 1.75rem;
}

.principles-list {
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}

.principle-card {
    display: flex;
    gap: 1rem;
}

.principle-num {
    font-size: 1.1rem;
    font-weight: 800;
    color: var(--accent-primary);
    background-color: var(--bg-surface);
    border: 1px solid var(--border-color);
    width: 38px;
    height: 38px;
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.principle-title { font-size: 0.98rem; margin-bottom: 0.2rem; }
.principle-desc { font-size: 0.85rem; color: var(--text-muted); }

.standards-box-title {
    font-size: 1.1rem;
    margin-bottom: 1.25rem;
    border-bottom: 1px solid var(--border-light);
    padding-bottom: 0.65rem;
}

.commitment-item {
    display: flex;
    align-items: flex-start;
    gap: 0.85rem;
    margin-bottom: 1.1rem;
}

.commitment-badge {
    background-color: var(--bg-subtle);
    color: var(--text-secondary);
    font-size: 0.7rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    padding: 0.15rem 0.45rem;
    border-radius: 3px;
    flex-shrink: 0;
}

.commitment-item strong { display: block; font-size: 0.9rem; color: var(--text-primary); }
.commitment-item p { font-size: 0.82rem; color: var(--text-muted); }

/* Contact Section */
.contact-grid { align-items: start; }
.contact-card-title { font-size: 1.25rem; margin-bottom: 1.25rem; }

.form-group { margin-bottom: 1.1rem; }
.form-group label { display: block; font-size: 0.85rem; font-weight: 600; color: var(--text-primary); margin-bottom: 0.35rem; }
.form-group .req { color: #ef4444; }

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 0.65rem 0.85rem;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    font-family: inherit;
    font-size: 0.88rem;
    color: var(--text-primary);
    background-color: var(--bg-main);
    transition: var(--transition);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--border-focus);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.12);
}

.form-privacy-note {
    font-size: 0.75rem;
    color: var(--text-muted);
    margin-top: 0.75rem;
    text-align: center;
}

.info-card-title { font-size: 1.1rem; margin-bottom: 0.25rem; }
.info-card-sub { font-size: 0.85rem; color: var(--text-muted); margin-bottom: 1.25rem; }

.contact-detail-list {
    display: flex;
    flex-direction: column;
    gap: 1.1rem;
}

.detail-item { display: flex; gap: 0.85rem; }

.detail-icon {
    width: 36px;
    height: 36px;
    border-radius: var(--radius-sm);
    background-color: var(--bg-surface);
    border: 1px solid var(--border-color);
    color: var(--accent-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.detail-item strong { display: block; font-size: 0.88rem; color: var(--text-primary); }
.detail-item p { font-size: 0.82rem; color: var(--text-muted); }

.faq-box { margin-top: 1.25rem; }
.faq-title { font-size: 0.98rem; margin-bottom: 0.85rem; }
.faq-item { margin-bottom: 0.85rem; border-bottom: 1px solid var(--border-light); padding-bottom: 0.7rem; }
.faq-item:last-child { margin-bottom: 0; border-bottom: none; padding-bottom: 0; }
.faq-q { display: block; font-size: 0.85rem; color: var(--text-primary); margin-bottom: 0.15rem; }
.faq-a { font-size: 0.8rem; color: var(--text-muted); }

/* Footer */
.footer {
    background-color: var(--bg-dark);
    color: var(--text-white);
    padding: 4rem 0 2rem 0;
    border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.footer-grid { margin-bottom: 3rem; }

.brand-col .footer-desc {
    color: #94a3b8;
    font-size: 0.85rem;
    margin-top: 0.85rem;
    line-height: 1.55;
}

.footer-title {
    color: #ffffff;
    font-size: 0.9rem;
    margin-bottom: 1.1rem;
}

.footer-links {
    display: flex;
    flex-direction: column;
    gap: 0.6rem;
}

.footer-links a {
    color: #94a3b8;
    font-size: 0.85rem;
}

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

.footer-notice {
    color: #94a3b8;
    font-size: 0.82rem;
    margin-bottom: 0.85rem;
    line-height: 1.5;
}

.footer-badge {
    display: inline-block;
    background-color: rgba(255, 255, 255, 0.08);
    color: #cbd5e1;
    font-size: 0.72rem;
    font-weight: 600;
    padding: 0.25rem 0.6rem;
    border-radius: 3px;
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    padding-top: 1.75rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: 0.8rem;
    color: #64748b;
    flex-wrap: wrap;
    gap: 1rem;
}

.footer-legal-links { display: flex; gap: 1.25rem; }
.footer-legal-links a { color: #94a3b8; }
.footer-legal-links a:hover { color: #ffffff; }

/* Modal Dialog */
.modal-backdrop {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background-color: rgba(15, 23, 42, 0.5);
    z-index: 300;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1.5rem;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.25s ease;
}

.modal-backdrop.open { opacity: 1; pointer-events: auto; }

.modal-card {
    width: 100%;
    max-width: 500px;
    background-color: var(--bg-main);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-dropdown);
    position: relative;
    transform: scale(0.96);
    transition: transform 0.25s ease;
}

.modal-backdrop.open .modal-card { transform: scale(1); }

.modal-close {
    position: absolute;
    top: 0.8rem;
    right: 1rem;
    background: none;
    border: none;
    font-size: 1.6rem;
    color: var(--text-muted);
    cursor: pointer;
}

.modal-icon-wrapper.success {
    width: 52px;
    height: 52px;
    border-radius: 50%;
    background-color: var(--status-success-bg);
    border: 1px solid var(--status-success-border);
    color: var(--status-success-text);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.1rem auto;
}

.modal-title { font-size: 1.25rem; margin-bottom: 0.4rem; }
.modal-text { font-size: 0.88rem; color: var(--text-muted); margin-bottom: 1.25rem; }

.modal-summary-box {
    background-color: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 0.9rem 1.1rem;
    font-size: 0.82rem;
    margin-bottom: 1.25rem;
}

.modal-summary-box p { margin-bottom: 0.25rem; }
.modal-summary-box p:last-child { margin-bottom: 0; }

/* Responsive Breakpoints */
@media (max-width: 1024px) {
    .grid-4-col { grid-template-columns: repeat(2, 1fr); }
    .grid-3-col { grid-template-columns: repeat(2, 1fr); }
    .hero-title { font-size: 2.35rem; }
    .detail-content-grid { grid-template-columns: 1fr; }
    .process-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
    .nav-menu, .nav-actions .btn { display: none; }
    .mobile-toggle { display: block; }
    
    .grid-2-col, .grid-3-col, .grid-4-col {
        grid-template-columns: 1fr;
    }
    
    .hero-title { font-size: 2rem; }
    .section-title { font-size: 1.65rem; }
    .page-header-title { font-size: 1.95rem; }
    .section { padding: 3.5rem 0; }
    
    .hero-glass-card.floating-card {
        position: relative;
        bottom: 0;
        left: 0;
        margin-top: 1rem;
    }

    .checkbox-grid { grid-template-columns: 1fr; }
    
    .portal-tabs {
        width: 100%;
        overflow-x: auto;
    }

    .process-grid { grid-template-columns: 1fr; }
}