:root {
    /* Colors */
    --color-surface: #FFFFFF;
    --color-surface-dim: #F1F4F9;
    --color-surface-bright: #FFFFFF;
    --color-surface-container-lowest: #FFFFFF;
    --color-surface-container-low: #F7F9FC;
    --color-surface-container: #EEF2F8;
    --color-surface-container-high: #E4EAF3;
    --color-surface-container-highest: #D8E0EB;
    --color-on-surface: #0A1A2F;
    --color-on-surface-variant: #455774;
    --color-outline: #8A9AB2;
    --color-outline-variant: #D0D9E6;
    --color-primary: #0A2540;
    --color-on-primary: #FFFFFF;
    --color-primary-container: #E6EDF6;
    --color-on-primary-container: #0A2540;
    --color-secondary: #2563EB;
    --color-on-secondary: #FFFFFF;
    --color-secondary-container: #DBEAFE;
    --color-on-secondary-container: #1E40AF;
    --color-tertiary: #475569;
    --color-on-tertiary: #FFFFFF;
    --color-tertiary-container: #E2E8F0;
    --color-on-tertiary-container: #1E293B;
    --color-error: #B91C1C;
    --color-on-error: #FFFFFF;
    --color-error-container: #FEE2E2;
    --color-on-error-container: #7F1D1D;
    --color-background: #FFFFFF;
    --color-on-background: #0A1A2F;
    --color-surface-variant: #EEF2F8;
    --color-surface-tint: #0A2540;

    /* Typography */
    --font-family: 'Manrope', sans-serif;

    /* Shapes */
    --rounded-none: 0;
    --rounded-sm: 2px;
    --rounded-md: 4px;
    --rounded-lg: 6px;
    --rounded-xl: 8px;
    --rounded-full: 9999px;

    /* Spacing */
    --spacing-base: 8px;
    --spacing-xs: 4px;
    --spacing-sm: 12px;
    --spacing-md: 24px;
    --spacing-lg: 48px;
    --spacing-xl: 80px;
    --spacing-2xl: 120px;
    --spacing-gutter: 32px;
    --spacing-margin: 48px;
    --spacing-container-max: 1240px;
}

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

html {
    scroll-behavior: smooth;
    scroll-padding-top: 80px;
}

html, body {
    overflow-x: hidden;
    width: 100%;
}

body {
    font-family: var(--font-family);
    background-color: var(--color-surface);
    color: var(--color-on-surface);
    line-height: 1.65;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Layout Utilities */
.container {
    width: 100%;
    max-width: var(--spacing-container-max);
    margin: 0 auto;
    padding: 0 24px;
}

@media (min-width: 768px) {
    .container {
        padding: 0 var(--spacing-margin);
    }
}

.section {
    padding: 60px 0;
}

@media (min-width: 768px) {
    .section {
        padding: var(--spacing-2xl) 0;
    }
}

/* Sticky Navigation */
header {
    position: sticky;
    top: 0;
    z-index: 100;
    background-color: rgba(255, 255, 255, 0.98);
    border-bottom: 1px solid var(--color-outline-variant);
    backdrop-filter: blur(8px);
    transition: background-color 0.3s ease;
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 72px;
}

.logo {
    font-family: var(--font-family);
    font-weight: 800;
    font-size: 18px;
    color: var(--color-primary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    text-decoration: none;
}

/* Mobile-First Navigation Menu */
.nav-menu {
    display: none;
    flex-direction: column;
    position: absolute;
    top: 72px;
    left: 0;
    width: 100%;
    background-color: var(--color-surface);
    border-bottom: 1px solid var(--color-outline-variant);
    padding: 24px;
    gap: 16px;
    box-shadow: 0 4px 12px rgba(10, 37, 64, 0.05);
}

.nav-menu.active {
    display: flex;
}

.nav-link {
    font-family: var(--font-family);
    font-size: 14px;
    font-weight: 600;
    line-height: 1.2;
    letter-spacing: 0.03em;
    color: var(--color-on-surface);
    text-decoration: none;
    transition: color 0.2s ease;
}

.nav-link:hover {
    color: var(--color-secondary);
}

.nav-link-active {
    color: var(--color-primary) !important;
    font-weight: 700 !important;
}

/* Hamburger Menu Button */
.hamburger {
    display: block;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
    z-index: 101;
}

.hamburger span {
    display: block;
    width: 24px;
    height: 2px;
    background-color: var(--color-primary);
    margin: 5px 0;
    transition: transform 0.3s ease, opacity 0.3s ease;
}

/* Hamburger Active State */
.hamburger.active span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
}

.hamburger.active span:nth-child(2) {
    opacity: 0;
}

.hamburger.active span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
}

/* Desktop Navigation */
@media (min-width: 768px) {
    .hamburger {
        display: none;
    }

    .nav-menu {
        display: flex;
        flex-direction: row;
        position: static;
        width: auto;
        background-color: transparent;
        border-bottom: none;
        padding: 0;
        gap: 32px;
        box-shadow: none;
        align-items: center;
    }
}

/* Buttons & CTA */
.cta-primary {
    background-color: var(--color-primary);
    color: var(--color-on-primary);
    font-family: var(--font-family);
    font-size: 14px;
    font-weight: 600;
    line-height: 1.2;
    letter-spacing: 0.03em;
    border-radius: var(--rounded-md);
    padding: 14px 28px;
    border: 1px solid var(--color-primary);
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: background-color 0.2s ease, border-color 0.2s ease, color 0.2s ease;
    text-align: center;
    max-width: 100%;
    white-space: normal;
}

.cta-primary:hover, .cta-primary-hover {
    background-color: #0E3560;
    border-color: var(--color-primary);
}

.cta-secondary {
    background-color: transparent;
    color: var(--color-on-surface);
    font-family: var(--font-family);
    font-size: 14px;
    font-weight: 600;
    line-height: 1.2;
    letter-spacing: 0.03em;
    border-radius: var(--rounded-md);
    padding: 13px 27px;
    border: 1px solid var(--color-on-surface);
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: background-color 0.2s ease, border-color 0.2s ease;
    text-align: center;
    max-width: 100%;
    white-space: normal;
}

.cta-secondary:hover {
    background-color: var(--color-surface-container-high);
}

/* Hero Section */
.hero-grid {
    display: flex;
    flex-direction: column;
    gap: 40px;
}

@media (min-width: 1024px) {
    .hero-grid {
        display: grid;
        grid-template-columns: 1.2fr 0.8fr;
        gap: 48px;
        align-items: center;
    }
}

.hero-content {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.hero-headline {
    font-family: var(--font-family);
    font-size: clamp(36px, 5vw, 64px);
    font-weight: 800;
    line-height: 1.05;
    letter-spacing: -0.03em;
    color: var(--color-on-surface);
}

.hero-subheadline {
    font-family: var(--font-family);
    font-size: 18px;
    font-weight: 400;
    line-height: 1.6;
    color: var(--color-on-surface-variant);
}

.hero-evidence {
    border-left: 2px solid var(--color-primary);
    padding-left: 16px;
    margin-top: 8px;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.hero-evidence-item {
    font-family: var(--font-family);
    font-size: 14px;
    font-weight: 600;
    color: var(--color-on-surface);
}

.hero-proof-panel {
    background-color: var(--color-surface-container-low);
    border: 1px solid var(--color-outline-variant);
    border-radius: var(--rounded-md);
    padding: 32px;
    display: flex;
    flex-direction: column;
    gap: 24px;
    position: relative;
    overflow: hidden;
    min-height: 380px;
    justify-content: space-between;
}

.hero-bg-image {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 0.08;
    pointer-events: none;
}

/* Confidence Ledger (Audit Strip) */
.confidence-ledger {
    border-top: 1px solid var(--color-outline-variant);
    border-bottom: 1px solid var(--color-outline-variant);
    background-color: var(--color-surface-container-low);
    padding: 24px 0;
}

.ledger-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
}

@media (min-width: 768px) {
    .ledger-grid {
        grid-template-columns: repeat(4, 1fr);
    }
}

.ledger-item {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.ledger-label {
    font-family: var(--font-family);
    font-size: 12px;
    font-weight: 500;
    line-height: 1;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--color-on-surface-variant);
}

.ledger-value {
    font-family: var(--font-family);
    font-size: 16px;
    font-weight: 700;
    color: var(--color-primary);
}

/* About Section */
.about-grid {
    display: flex;
    flex-direction: column;
    gap: 40px;
}

@media (min-width: 1024px) {
    .about-grid {
        display: grid;
        grid-template-columns: 1.2fr 0.8fr;
        gap: 64px;
        align-items: start;
    }
}

.about-bio {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.about-title {
    font-family: var(--font-family);
    font-size: clamp(28px, 4vw, 36px);
    font-weight: 700;
    line-height: 1.15;
    letter-spacing: -0.015em;
    color: var(--color-primary);
}

.about-text {
    font-family: var(--font-family);
    font-size: 16px;
    color: var(--color-on-surface);
    line-height: 1.65;
}

.about-stats-table {
    border: 1px solid var(--color-outline-variant);
    border-radius: var(--rounded-md);
    background-color: var(--color-surface-container-low);
    width: 100%;
}

.stats-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 24px;
    border-bottom: 1px solid var(--color-outline-variant);
}

.stats-row:last-child {
    border-bottom: none;
}

/* Cases Section */
.cases-header {
    margin-bottom: 48px;
    border-bottom: 1px solid var(--color-outline-variant);
    padding-bottom: 24px;
}

.cases-title {
    font-family: var(--font-family);
    font-size: clamp(28px, 4vw, 36px);
    font-weight: 700;
    line-height: 1.15;
    letter-spacing: -0.015em;
    color: var(--color-primary);
}

.cases-subtitle {
    font-family: var(--font-family);
    font-size: 16px;
    color: var(--color-on-surface-variant);
    margin-top: 8px;
}

.cases-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 32px;
}

@media (min-width: 768px) {
    .cases-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

.case-card {
    background-color: var(--color-surface-container-low);
    border: 1px solid var(--color-outline-variant);
    border-radius: var(--rounded-md);
    padding: 24px;
    display: flex;
    flex-direction: column;
    gap: 24px;
    transition: background-color 0.2s ease;
    box-shadow: 0 1px 3px rgba(10, 37, 64, 0.06);
}

.case-card:hover, .case-card-hover {
    background-color: var(--color-surface-container);
}

.case-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.niche-chip {
    background-color: var(--color-primary-container);
    color: var(--color-on-primary-container);
    border-radius: var(--rounded-sm);
    padding: 4px 10px;
    font-family: var(--font-family);
    font-size: 12px;
    font-weight: 500;
    line-height: 1;
    letter-spacing: 0.14em;
    text-transform: uppercase;
}

.case-date {
    font-family: var(--font-family);
    font-size: 12px;
    font-weight: 500;
    line-height: 1;
    letter-spacing: 0.14em;
    color: var(--color-on-surface-variant);
    text-transform: uppercase;
}

.case-title {
    font-family: var(--font-family);
    font-size: 20px;
    font-weight: 700;
    color: var(--color-primary);
    line-height: 1.3;
}

.asset-frame {
    border: 1px solid var(--color-outline-variant);
    background-color: #000000;
    border-radius: var(--rounded-md);
    overflow: hidden;
    margin: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    height: 280px;
    width: 100%;
}

.asset-image {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.case-metrics-ledger {
    border-top: 1px solid var(--color-outline-variant);
    padding-top: 20px;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
}

.metric-display {
    font-family: var(--font-family);
    font-size: clamp(20px, 3vw, 24px);
    font-weight: 800;
    color: var(--color-primary);
    line-height: 1.2;
    letter-spacing: -0.02em;
}

.metric-label {
    font-family: var(--font-family);
    font-size: 12px;
    font-weight: 500;
    line-height: 1;
    letter-spacing: 0.14em;
    color: var(--color-on-surface-variant);
    text-transform: uppercase;
    margin-top: 4px;
}

/* Specific overrides for Case 7 (span 2) on mobile */
@media (max-width: 767px) {
    .case-card[style*="grid-column: span 2"] {
        grid-column: span 1 !important;
    }
    .case-card[style*="grid-column: span 2"] > div[style*="display: grid"] {
        display: flex !important;
        flex-direction: column !important;
        gap: 24px !important;
    }
    .case-card[style*="grid-column: span 2"] .asset-frame {
        height: 200px !important;
    }
}

@media (min-width: 768px) {
    .case-card[style*="grid-column: span 2"] {
        grid-column: span 2 !important;
    }
}

/* Logos Strip */
.logos-section {
    padding: 60px 0;
    border-top: 1px solid var(--color-outline-variant);
    border-bottom: 1px solid var(--color-outline-variant);
    background-color: var(--color-surface-container-low);
}

.logos-title {
    font-family: var(--font-family);
    font-size: 12px;
    font-weight: 500;
    line-height: 1;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--color-on-surface-variant);
    text-align: center;
    margin-bottom: 32px;
}

.logos-strip {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    align-items: center;
    justify-items: center;
}

@media (min-width: 768px) {
    .logos-strip {
        grid-template-columns: repeat(6, 1fr);
        gap: 32px;
    }
}

.logo-item {
    font-family: var(--font-family);
    font-weight: 800;
    font-size: 16px;
    color: var(--color-primary);
    letter-spacing: 0.1em;
    text-transform: uppercase;
    filter: grayscale(100%) opacity(0.65);
    transition: filter 0.2s ease, opacity 0.2s ease;
    user-select: none;
}

.logo-item:hover {
    filter: none;
    opacity: 1;
}

/* Services Section */
.services-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 32px;
}

@media (min-width: 768px) {
    .services-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

.service-tile {
    border: 1px solid var(--color-outline-variant);
    padding: 40px;
    border-radius: var(--rounded-md);
    background-color: var(--color-surface);
    display: flex;
    flex-direction: column;
    gap: 20px;
    transition: border-color 0.2s ease, background-color 0.2s ease;
}

.service-tile:hover {
    border-color: var(--color-primary);
    background-color: var(--color-surface-container-low);
}

.service-icon {
    width: 48px;
    height: 48px;
    color: var(--color-primary);
}

.service-name {
    font-family: var(--font-family);
    font-size: 20px;
    font-weight: 700;
    color: var(--color-primary);
}

.service-description {
    font-family: var(--font-family);
    font-size: 14px;
    color: var(--color-on-surface-variant);
    line-height: 1.6;
}

/* Contacts Section */
.contacts-grid {
    display: flex;
    flex-direction: column;
    gap: 40px;
}

@media (min-width: 1024px) {
    .contacts-grid {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 64px;
        align-items: start;
    }
}

.contacts-info {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.contacts-title {
    font-family: var(--font-family);
    font-size: clamp(28px, 4vw, 36px);
    font-weight: 700;
    line-height: 1.15;
    letter-spacing: -0.015em;
    color: var(--color-primary);
}

.contacts-subtitle {
    font-family: var(--font-family);
    font-size: 18px;
    color: var(--color-on-surface-variant);
    line-height: 1.6;
}

.contacts-details {
    display: flex;
    flex-direction: column;
    gap: 16px;
    margin-top: 16px;
}

.contact-row {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.contact-label {
    font-family: var(--font-family);
    font-size: 12px;
    font-weight: 500;
    line-height: 1;
    letter-spacing: 0.14em;
    color: var(--color-on-surface-variant);
    text-transform: uppercase;
}

.contact-value {
    font-family: var(--font-family);
    font-size: 18px;
    font-weight: 600;
    color: var(--color-primary);
    text-decoration: none;
    transition: color 0.2s ease;
}

.contact-value:hover {
    color: var(--color-secondary);
}

.contacts-form {
    background-color: var(--color-surface-container-low);
    border: 1px solid var(--color-outline-variant);
    border-radius: var(--rounded-md);
    padding: 32px;
    display: flex;
    flex-direction: column;
    gap: 24px;
}

@media (min-width: 768px) {
    .contacts-form {
        padding: 40px;
    }
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.form-label {
    font-family: var(--font-family);
    font-size: 12px;
    font-weight: 500;
    line-height: 1;
    letter-spacing: 0.14em;
    color: var(--color-primary);
    text-transform: uppercase;
}

.input-field {
    border: 1px solid var(--color-outline-variant);
    padding: 14px 16px;
    border-radius: var(--rounded-md);
    font-family: var(--font-family);
    font-size: 14px;
    width: 100%;
    outline: none;
    background-color: var(--color-surface);
    transition: border-color 0.2s ease;
}

.input-field:focus {
    border-color: var(--color-primary);
}

/* Dividers */
.divider {
    height: 1px;
    background-color: var(--color-outline-variant);
    border: none;
    margin: 0;
}

/* Footer */
footer {
    background-color: var(--color-primary);
    color: var(--color-on-primary);
    padding: 60px 0;
    font-size: 14px;
}

.footer-grid {
    display: flex;
    flex-direction: column;
    gap: 32px;
}

@media (min-width: 768px) {
    .footer-grid {
        display: grid;
        grid-template-columns: 1.5fr 1fr;
        gap: 48px;
        align-items: center;
    }
}

.footer-logo {
    font-family: var(--font-family);
    font-weight: 800;
    font-size: 18px;
    letter-spacing: 0.05em;
    text-transform: uppercase;
}

.footer-copy {
    color: rgba(255, 255, 255, 0.6);
    margin-top: 8px;
}

.footer-links {
    display: flex;
    gap: 24px;
    flex-wrap: wrap;
}

@media (min-width: 768px) {
    .footer-links {
        justify-content: flex-end;
    }
}

.footer-link {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    transition: color 0.2s ease;
}

.footer-link:hover {
    color: var(--color-surface);
}

/* Scroll Animations */
.hero-content, .hero-proof-panel, .about-bio, .about-stats-table, .case-card, .service-tile, .contacts-info, .contacts-form {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.6s cubic-bezier(0.16, 1, 0.3, 1), transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

.visible .hero-content,
.visible .hero-proof-panel,
.visible .about-bio,
.visible .about-stats-table,
.visible .case-card,
.visible .service-tile,
.visible .contacts-info,
.visible .contacts-form,
.visible.hero-content,
.visible.hero-proof-panel,
.visible.about-bio,
.visible.about-stats-table,
.visible.case-card,
.visible.service-tile,
.visible.contacts-info,
.visible.contacts-form {
    opacity: 1;
    transform: translateY(0);
}

/* Real Asset Fit Contract */
img[data-fit-policy="preserve_original_aspect"],
img[data-fit-policy="contain_in_frame"],
.asset-image--contain,
.asset-frame--creative img,
.asset-frame--dashboard img {
    object-fit: contain !important;
    width: 100% !important;
    height: auto !important;
    max-height: min(72vh, 760px) !important;
}

/* Accessibility */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
    .hero-content, .hero-proof-panel, .about-bio, .about-stats-table, .case-card, .service-tile, .contacts-info, .contacts-form {
        opacity: 1 !important;
        transform: none !important;
        transition: none !important;
    }
}

/* Print Styles */
@media print {
    header, .hamburger, .nav-menu, .cta-primary, .cta-secondary, .contacts-form, footer {
        display: none !important;
    }
    body {
        background-color: #FFFFFF !important;
        color: #000000 !important;
    }
    .container {
        width: 100% !important;
        max-width: none !important;
        padding: 0 !important;
    }
    .section {
        padding: 20px 0 !important;
        page-break-inside: avoid;
    }
    .case-card {
        border: 1px solid #000000 !important;
        background-color: #FFFFFF !important;
        page-break-inside: avoid;
    }
}

/* Real evidence asset safety: keep ad creatives and dashboards un-cropped. */
img[data-fit-policy="preserve_original_aspect"],
img[data-fit-policy="contain_in_frame"],
img[data-asset-role="ad_creative"],
img[data-asset-role="ad_dashboard"],
img[data-asset-role="case_screenshot"],
.asset-image--contain,
.asset-frame--creative img,
.asset-frame--dashboard img {
    width: 100% !important;
    height: auto !important;
    max-height: min(72vh, 760px) !important;
    object-fit: contain !important;
    object-position: center center !important;
}

.asset-frame--creative,
.asset-frame--dashboard {
    overflow: visible !important;
}