/* ============================================
   Sovereign Forge — Shared Styles
   Color Palette: Microsoft/Azure Corporate
   Typography: Segoe UI
   ============================================ */

:root {
    --ms-blue: #0078D4;
    --ms-dark-blue: #005A9E;
    --ms-navy: #0F1B2D;
    --ms-deep: #0A1220;
    --ms-panel: #121D2E;
    --ms-card: #162236;
    --ms-border: #1E2E45;
    --ms-orange: #F25022;
    --ms-green: #7FBA00;
    --ms-yellow: #FFB900;
    --ms-gray: #737373;
    --ms-light: #C8D1DC;
    --ms-white: #EFF3F8;
}

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

body {
    background: var(--ms-deep);
    color: var(--ms-white);
    font-family: 'Segoe UI', -apple-system, sans-serif;
    overflow-x: hidden;
}

a {
    color: var(--ms-blue);
    text-decoration: none;
    transition: color 0.3s;
}

a:hover {
    color: var(--ms-white);
}

/* ---- Navigation ---- */
nav {
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 100;
    padding: 1.5rem 3rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: rgba(10, 18, 32, 0.95);
    backdrop-filter: blur(8px);
    border-bottom: 1px solid var(--ms-border);
}

.logo {
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    font-weight: 700;
    font-size: 1.3rem;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    text-decoration: none;
    color: var(--ms-white);
}

.logo img {
    height: 36px;
    width: auto;
}

.logo span {
    color: var(--ms-blue);
}

.nav-links {
    display: flex;
    gap: 2rem;
    list-style: none;
    font-size: 0.7rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
}

.nav-links a {
    color: var(--ms-light);
    text-decoration: none;
    transition: color 0.3s;
    padding: 0.25rem 0;
}

.nav-links a:hover,
.nav-links a.active {
    color: var(--ms-blue);
}

/* ---- Buttons ---- */
.btn-primary {
    display: inline-block;
    font-size: 0.85rem;
    font-weight: 600;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    padding: 1rem 2.5rem;
    background: var(--ms-blue);
    color: #fff;
    border: none;
    cursor: pointer;
    transition: all 0.3s;
    text-decoration: none;
}

.btn-primary:hover {
    background: var(--ms-dark-blue);
    box-shadow: 0 0 30px rgba(0, 120, 212, 0.3);
    color: #fff;
}

.btn-secondary {
    display: inline-block;
    font-size: 0.85rem;
    font-weight: 500;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    padding: 1rem 2.5rem;
    background: transparent;
    color: var(--ms-white);
    border: 1px solid var(--ms-border);
    cursor: pointer;
    transition: all 0.3s;
    text-decoration: none;
}

.btn-secondary:hover {
    border-color: var(--ms-blue);
    color: var(--ms-blue);
}

/* ---- Page Header (inner pages) ---- */
.page-header {
    padding: 10rem 3rem 4rem;
    background: var(--ms-deep);
    position: relative;
}

.page-header::before {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 60%;
    height: 100%;
    background: radial-gradient(ellipse at 70% 40%, rgba(0, 120, 212, 0.06) 0%, transparent 60%);
    pointer-events: none;
}

.page-header .section-tag {
    position: relative;
}

.page-header h1 {
    font-weight: 300;
    font-size: clamp(2.5rem, 5vw, 4.5rem);
    line-height: 1.1;
    max-width: 800px;
    position: relative;
}

.page-header h1 strong {
    font-weight: 700;
    color: var(--ms-blue);
}

.page-header .page-subtitle {
    font-size: 1.25rem;
    font-weight: 300;
    color: var(--ms-light);
    max-width: 600px;
    margin-top: 1.5rem;
    line-height: 1.6;
    position: relative;
}

/* ---- Sections ---- */
section {
    padding: 6rem 3rem;
}

.section-tag {
    font-size: 0.65rem;
    letter-spacing: 0.3em;
    text-transform: uppercase;
    color: var(--ms-blue);
    margin-bottom: 1rem;
}

.section-title {
    font-size: clamp(2rem, 4vw, 3.5rem);
    font-weight: 300;
    line-height: 1.15;
    max-width: 700px;
    margin-bottom: 3rem;
}

.section-title strong {
    font-weight: 700;
}

.bg-navy {
    background: var(--ms-navy);
}

.bg-deep {
    background: var(--ms-deep);
}

/* ---- Cards ---- */
.card-grid {
    display: grid;
    gap: 2px;
}

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

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

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

.card {
    background: var(--ms-card);
    padding: 2.5rem;
    position: relative;
    overflow: hidden;
    transition: background 0.3s;
}

.card:hover {
    background: var(--ms-border);
}

.card h3 {
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 1rem;
}

.card p {
    font-size: 1.05rem;
    font-weight: 300;
    color: var(--ms-light);
    line-height: 1.6;
}

.card .card-icon {
    font-size: 2rem;
    margin-bottom: 1.5rem;
}

.card-accent {
    position: relative;
}

.card-accent::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 2px;
    background: var(--ms-blue);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.4s;
}

.card-accent:hover::before {
    transform: scaleX(1);
}

/* ---- Stats Bar ---- */
.stats-bar {
    display: flex;
    border-top: 1px solid var(--ms-border);
    border-bottom: 1px solid var(--ms-border);
}

.stat {
    flex: 1;
    padding: 3rem;
    border-right: 1px solid var(--ms-border);
    text-align: center;
}

.stat:last-child {
    border-right: none;
}

.stat-value {
    font-size: 3rem;
    font-weight: 700;
    color: var(--ms-blue);
    line-height: 1;
}

.stat-label {
    font-size: 0.65rem;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--ms-gray);
    margin-top: 0.75rem;
}

/* ---- Phase Rows ---- */
.phase-row {
    display: grid;
    grid-template-columns: 120px 1fr;
    gap: 3rem;
    padding: 3rem 0;
    border-bottom: 1px solid var(--ms-border);
}

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

.phase-num {
    font-size: 4rem;
    font-weight: 700;
    color: var(--ms-border);
    line-height: 1;
}

.phase-content h3 {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--ms-blue);
    margin-bottom: 0.75rem;
}

.phase-content p {
    font-size: 1.1rem;
    font-weight: 300;
    color: var(--ms-light);
    line-height: 1.7;
    max-width: 700px;
}

.phase-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-top: 1rem;
}

.phase-tag {
    font-size: 0.6rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    padding: 0.3rem 0.8rem;
    border: 1px solid var(--ms-border);
    color: var(--ms-gray);
}

/* ---- Detail List ---- */
.detail-list {
    list-style: none;
    margin-top: 1.5rem;
}

.detail-list li {
    padding: 1rem 0;
    border-bottom: 1px solid var(--ms-border);
    font-size: 1rem;
    font-weight: 300;
    color: var(--ms-light);
    line-height: 1.6;
    display: flex;
    gap: 1rem;
}

.detail-list li:last-child {
    border-bottom: none;
}

.detail-list .marker {
    color: var(--ms-blue);
    font-weight: 600;
    min-width: 1.5rem;
}

/* ---- Architecture Diagram ---- */
.arch-diagram {
    max-width: 900px;
    margin: 3rem auto 0;
    display: grid;
    gap: 2px;
}

.arch-layer {
    background: var(--ms-card);
    padding: 1.5rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.arch-label {
    font-size: 0.7rem;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--ms-blue);
    min-width: 140px;
}

.arch-items {
    display: flex;
    gap: 1.5rem;
    flex-wrap: wrap;
    justify-content: flex-end;
}

.arch-item {
    font-size: 0.7rem;
    color: var(--ms-light);
    padding: 0.4rem 0.8rem;
    border: 1px solid var(--ms-border);
}

/* ---- Platform Badge ---- */
.platform-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem 2rem;
    border: 1px solid var(--ms-border);
    margin-top: 2rem;
    font-size: 0.75rem;
    letter-spacing: 0.1em;
    color: var(--ms-light);
}

.platform-badge .dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--ms-green);
    animation: pulse 2s infinite;
}

/* ---- Tagline Section ---- */
.tagline-section {
    padding: 8rem 3rem;
    text-align: center;
    background: var(--ms-deep);
    position: relative;
}

.tagline-section::before {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(ellipse at center, rgba(0, 120, 212, 0.04) 0%, transparent 60%);
}

.tagline {
    font-size: clamp(1.8rem, 4vw, 3rem);
    font-weight: 300;
    letter-spacing: 0.05em;
    position: relative;
}

.tagline em {
    font-style: italic;
    color: var(--ms-blue);
}

/* ---- Footer ---- */
footer {
    padding: 3rem;
    border-top: 1px solid var(--ms-border);
    background: var(--ms-deep);
}

.footer-inner {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 3rem;
    margin-bottom: 3rem;
}

.footer-brand .logo {
    font-size: 1.1rem;
    display: block;
    margin-bottom: 1rem;
}

.footer-brand p {
    font-size: 0.85rem;
    color: var(--ms-gray);
    line-height: 1.5;
    max-width: 280px;
}

.footer-col h4 {
    font-size: 0.65rem;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--ms-gray);
    margin-bottom: 1rem;
}

.footer-col ul {
    list-style: none;
}

.footer-col li {
    margin-bottom: 0.5rem;
}

.footer-col a {
    font-size: 0.85rem;
    color: var(--ms-light);
}

.footer-col a:hover {
    color: var(--ms-blue);
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 2rem;
    border-top: 1px solid var(--ms-border);
    font-size: 0.65rem;
    letter-spacing: 0.1em;
    color: var(--ms-gray);
}

/* ---- Content Layouts ---- */
.content-two-col {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: start;
}

.content-text h3 {
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 1rem;
}

.content-text p {
    font-size: 1.05rem;
    font-weight: 300;
    color: var(--ms-light);
    line-height: 1.7;
    margin-bottom: 1.5rem;
}

/* ---- Timeline ---- */
.timeline {
    position: relative;
    padding-left: 3rem;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 2px;
    background: var(--ms-border);
}

.timeline-item {
    position: relative;
    padding-bottom: 3rem;
}

.timeline-item:last-child {
    padding-bottom: 0;
}

.timeline-item::before {
    content: '';
    position: absolute;
    left: -3rem;
    top: 0.5rem;
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: var(--ms-blue);
    border: 2px solid var(--ms-deep);
    margin-left: -5px;
}

.timeline-item h3 {
    font-size: 1.3rem;
    font-weight: 600;
    color: var(--ms-blue);
    margin-bottom: 0.5rem;
}

.timeline-item .timeline-duration {
    font-size: 0.7rem;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--ms-gray);
    margin-bottom: 0.75rem;
}

.timeline-item p {
    font-size: 1.05rem;
    font-weight: 300;
    color: var(--ms-light);
    line-height: 1.7;
}

/* ---- Form Styles ---- */
.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    font-size: 0.7rem;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--ms-gray);
    margin-bottom: 0.5rem;
}

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 1rem;
    background: var(--ms-card);
    border: 1px solid var(--ms-border);
    color: var(--ms-white);
    font-family: 'Segoe UI', sans-serif;
    font-size: 1rem;
    transition: border-color 0.3s;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--ms-blue);
}

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

.form-group select option {
    background: var(--ms-card);
}

/* ---- Animations ---- */
@keyframes fadeUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes pulse {

    0%,
    100% {
        opacity: 1
    }

    50% {
        opacity: 0.4
    }
}

@keyframes gridScroll {
    0% {
        transform: translateY(0);
    }

    100% {
        transform: translateY(60px);
    }
}

@keyframes glowPulse {

    0%,
    100% {
        opacity: 0.4;
    }

    50% {
        opacity: 0.8;
    }
}

@keyframes scanline {
    0% {
        transform: translateY(-100%);
    }

    100% {
        transform: translateY(100vh);
    }
}

@keyframes floatUp {
    0% {
        transform: translateY(0) scale(1);
        opacity: 0.3;
    }

    50% {
        opacity: 0.6;
    }

    100% {
        transform: translateY(-200px) scale(0.5);
        opacity: 0;
    }
}

/* ---- Visual Enhancements: Grid Pattern Overlay ---- */
.hero::after {
    content: '';
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(0, 120, 212, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0, 120, 212, 0.03) 1px, transparent 1px);
    background-size: 60px 60px;
    pointer-events: none;
    animation: gridScroll 8s linear infinite;
}

.page-header::after {
    content: '';
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(0, 120, 212, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0, 120, 212, 0.03) 1px, transparent 1px);
    background-size: 60px 60px;
    pointer-events: none;
}

/* ---- Visual Enhancements: Section Divider Glow ---- */
.bg-navy {
    position: relative;
}

.bg-deep {
    position: relative;
}

.bg-navy::before {
    content: '';
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 40%;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(0, 120, 212, 0.3), transparent);
}

/* ---- Visual Enhancements: Card Glow on Hover ---- */
.card::after {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle at var(--mouse-x, 50%) var(--mouse-y, 50%), rgba(0, 120, 212, 0.06), transparent 60%);
    pointer-events: none;
    opacity: 0;
    transition: opacity 0.4s;
}

.card:hover::after {
    opacity: 1;
}

/* ---- Visual Enhancements: Stat Value Glow ---- */
.stat-value {
    text-shadow: 0 0 40px rgba(0, 120, 212, 0.2);
}

.stat {
    position: relative;
    transition: background 0.3s;
}

.stat:hover {
    background: rgba(0, 120, 212, 0.03);
}

/* ---- Visual Enhancements: Phase Number Enhancement ---- */
.phase-num {
    background: linear-gradient(180deg, var(--ms-border) 0%, rgba(30, 46, 69, 0.3) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    transition: all 0.4s;
}

.phase-row:hover .phase-num {
    background: linear-gradient(180deg, var(--ms-blue) 0%, rgba(0, 120, 212, 0.3) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* ---- Visual Enhancements: Phase Tag Enhancement ---- */
.phase-tag {
    transition: all 0.3s;
}

.phase-tag:hover {
    border-color: var(--ms-blue);
    color: var(--ms-blue);
    box-shadow: 0 0 10px rgba(0, 120, 212, 0.15);
}

/* ---- Visual Enhancements: Arch Layer Enhancement ---- */
.arch-layer {
    transition: all 0.3s;
    position: relative;
}

.arch-layer:hover {
    background: var(--ms-border);
}

.arch-layer::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    height: 100%;
    width: 3px;
    background: var(--ms-blue);
    transform: scaleY(0);
    transition: transform 0.3s;
}

.arch-layer:hover::before {
    transform: scaleY(1);
}

.arch-item {
    transition: all 0.3s;
}

.arch-item:hover {
    border-color: var(--ms-blue);
    color: var(--ms-white);
    box-shadow: 0 0 15px rgba(0, 120, 212, 0.1);
}

/* ---- Visual Enhancements: Vertical Card Glow Line ---- */
.vert-item {
    position: relative;
    overflow: hidden;
}

.vert-item::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--ms-blue), transparent);
    transform: scaleX(0);
    transition: transform 0.5s;
}

.vert-item:hover::after {
    transform: scaleX(1);
}

/* ---- Visual Enhancements: Tagline Section Particles ---- */
.tagline-section::after {
    content: '';
    position: absolute;
    inset: 0;
    background-image:
        radial-gradient(1px 1px at 10% 30%, rgba(0, 120, 212, 0.4) 50%, transparent 50%),
        radial-gradient(1px 1px at 30% 60%, rgba(0, 120, 212, 0.3) 50%, transparent 50%),
        radial-gradient(1.5px 1.5px at 50% 20%, rgba(0, 120, 212, 0.5) 50%, transparent 50%),
        radial-gradient(1px 1px at 70% 70%, rgba(0, 120, 212, 0.3) 50%, transparent 50%),
        radial-gradient(1px 1px at 85% 40%, rgba(0, 120, 212, 0.4) 50%, transparent 50%),
        radial-gradient(1.5px 1.5px at 20% 80%, rgba(0, 120, 212, 0.35) 50%, transparent 50%),
        radial-gradient(1px 1px at 60% 45%, rgba(0, 120, 212, 0.3) 50%, transparent 50%),
        radial-gradient(1px 1px at 90% 15%, rgba(0, 120, 212, 0.4) 50%, transparent 50%),
        radial-gradient(1px 1px at 40% 90%, rgba(0, 120, 212, 0.25) 50%, transparent 50%),
        radial-gradient(1.5px 1.5px at 75% 55%, rgba(0, 120, 212, 0.45) 50%, transparent 50%);
    pointer-events: none;
    animation: glowPulse 4s ease-in-out infinite;
}

/* ---- Visual Enhancements: Timeline Pulse ---- */
.timeline::after {
    content: '';
    position: absolute;
    left: -4px;
    top: 0;
    width: 10px;
    height: 30px;
    background: linear-gradient(180deg, var(--ms-blue), transparent);
    border-radius: 5px;
    animation: scanline 6s linear infinite;
    opacity: 0.4;
}

.timeline-item::after {
    content: '';
    position: absolute;
    left: -3rem;
    top: 0.5rem;
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: var(--ms-blue);
    margin-left: -5px;
    box-shadow: 0 0 12px rgba(0, 120, 212, 0.4);
}

/* ---- Visual Enhancements: Button Enhancements ---- */
.btn-primary {
    position: relative;
    overflow: hidden;
}

.btn-primary::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

.btn-primary:hover::before {
    width: 300px;
    height: 300px;
}

.btn-secondary::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(0, 120, 212, 0.05), transparent 50%);
    opacity: 0;
    transition: opacity 0.3s;
}

.btn-secondary {
    position: relative;
    overflow: hidden;
}

.btn-secondary:hover::after {
    opacity: 1;
}

/* ---- Visual Enhancements: Detail List Arrow Animation ---- */
.detail-list li {
    transition: padding-left 0.3s, background 0.3s;
}

.detail-list li:hover {
    padding-left: 0.5rem;
    background: rgba(0, 120, 212, 0.02);
}

/* ---- Visual Enhancements: Horizontal Rule Accents ---- */
.stats-bar {
    position: relative;
}

.stats-bar::before {
    content: '';
    position: absolute;
    top: -1px;
    left: 20%;
    right: 20%;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(0, 120, 212, 0.4), transparent);
}

/* ---- Visual Enhancements: Nav Scrolled State ---- */
nav {
    transition: padding 0.3s, background 0.3s;
}

/* ---- Visual Enhancements: Platform Badge Enhancement ---- */
.platform-badge {
    transition: all 0.3s;
}

.platform-badge:hover {
    border-color: var(--ms-blue);
    box-shadow: 0 0 20px rgba(0, 120, 212, 0.15);
}

.platform-badge .dot {
    box-shadow: 0 0 8px rgba(127, 186, 0, 0.5);
}

/* ---- Hero (index only) ---- */
.hero {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding: 8rem 3rem 4rem;
    position: relative;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 60%;
    height: 100%;
    background: radial-gradient(ellipse at 70% 40%, rgba(0, 120, 212, 0.06) 0%, transparent 60%);
    pointer-events: none;
}

.hero-tag {
    font-size: 0.7rem;
    letter-spacing: 0.3em;
    text-transform: uppercase;
    color: var(--ms-blue);
    margin-bottom: 2rem;
    opacity: 0;
    animation: fadeUp 0.8s 0.3s forwards;
}

.hero h1 {
    font-weight: 300;
    font-size: clamp(3rem, 7vw, 6.5rem);
    line-height: 1.05;
    max-width: 900px;
    opacity: 0;
    animation: fadeUp 0.8s 0.5s forwards;
}

.hero h1 strong {
    font-weight: 700;
    color: var(--ms-blue);
}

.hero-sub {
    font-size: 1.35rem;
    font-weight: 300;
    color: var(--ms-light);
    max-width: 600px;
    margin-top: 2rem;
    line-height: 1.6;
    opacity: 0;
    animation: fadeUp 0.8s 0.7s forwards;
}

.hero-cta {
    display: flex;
    gap: 1.5rem;
    margin-top: 3rem;
    opacity: 0;
    animation: fadeUp 0.8s 0.9s forwards;
}

/* ---- Verticals Grid ---- */
.vert-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
}

.vert-item {
    padding: 2.5rem 2rem;
    border: 1px solid var(--ms-border);
    margin: -0.5px;
    transition: all 0.4s;
}

.vert-item:hover {
    border-color: var(--ms-blue);
    z-index: 1;
}

.vert-item h3 {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.vert-item p {
    font-size: 0.9rem;
    font-weight: 300;
    color: var(--ms-gray);
    line-height: 1.5;
}

/* ---- Section Background Images ---- */
.hero-bg {
    background-size: cover;
    background-position: center center;
    background-repeat: no-repeat;
    background-attachment: scroll;
    position: relative;
}

.hero-bg::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(10, 18, 32, 0.92) 0%, rgba(10, 18, 32, 0.7) 50%, rgba(10, 18, 32, 0.85) 100%);
    pointer-events: none;
}

.section-bg {
    background-size: cover;
    background-position: center center;
    background-repeat: no-repeat;
    background-attachment: scroll;
    position: relative;
}

.section-bg::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, rgba(15, 27, 45, 0.88) 0%, rgba(15, 27, 45, 0.92) 100%);
    pointer-events: none;
    z-index: 0;
}

.section-bg>* {
    position: relative;
    z-index: 1;
}

.section-img {
    width: 100%;
    height: 280px;
    object-fit: cover;
    border: 1px solid var(--ms-border);
    filter: brightness(0.8) saturate(0.9);
    transition: filter 0.4s;
}

.section-img:hover {
    filter: brightness(1) saturate(1);
}

.section-img-rounded {
    border-radius: 2px;
}

.img-overlay-container {
    position: relative;
    overflow: hidden;
}

.img-overlay-container::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, transparent 60%, rgba(10, 18, 32, 0.6) 100%);
    pointer-events: none;
}

/* Page header with background image */
.page-header-bg {
    background-size: cover;
    background-position: center center;
    background-repeat: no-repeat;
    background-attachment: scroll;
    position: relative;
}

.page-header-bg::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(10, 18, 32, 0.93) 0%, rgba(10, 18, 32, 0.75) 100%);
    pointer-events: none;
}

/* ---- Responsive ---- */
@media (max-width: 768px) {
    nav {
        padding: 1rem 1.5rem;
    }

    .nav-links {
        display: none;
    }

    section {
        padding: 4rem 1.5rem;
    }

    .page-header {
        padding: 7rem 1.5rem 3rem;
    }

    .hero {
        padding: 6rem 1.5rem 3rem;
    }

    .stats-bar {
        flex-direction: column;
    }

    .stat {
        border-right: none;
        border-bottom: 1px solid var(--ms-border);
        padding: 2rem;
    }

    .stat:last-child {
        border-bottom: none;
    }

    .card-grid-2,
    .card-grid-3,
    .card-grid-4 {
        grid-template-columns: 1fr;
    }

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

    .phase-row {
        grid-template-columns: 1fr;
        gap: 1rem;
    }

    .hero-cta {
        flex-direction: column;
    }

    .content-two-col {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .footer-inner {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .footer-bottom {
        flex-direction: column;
        gap: 1rem;
        text-align: center;
    }
}