/* CSS Variables - Phase 4 Final Polish (Logo Correction) */
:root {
    --color-bg: #FFFFFF;
    --color-text-dark: #121212;
    --color-text-grey: #4A4A4A;
    --color-text-light: #D1D1D1;

    /* Cyan Accents - Precise & Technical */
    --color-cyan: #00FFFF;
    --color-cyan-dim: rgba(0, 255, 255, 0.1);

    --color-dark-surface: #1E1E1E;
    --color-heavy-metal: #121212;

    --font-heading: 'Oswald', sans-serif;
    --font-body: 'Roboto', sans-serif;

    --container-width: 1100px;
    --spacing-section: 6rem;
}

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

body {
    font-family: var(--font-body);
    background-color: var(--color-bg);
    color: var(--color-text-dark);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

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

a {
    text-decoration: none;
    color: inherit;
    transition: 0.3s;
}

ul {
    list-style: none;
}

/* Typography */
h1,
h2,
h3,
h4 {
    font-family: var(--font-heading);
    text-transform: uppercase;
    font-weight: 700;
    letter-spacing: 1px;
}

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

.text-white {
    color: #fff !important;
}

.text-grey {
    color: var(--color-text-grey);
}

.bg-dark {
    background-color: var(--color-heavy-metal);
    color: #fff;
}

.bg-light {
    background-color: #F8F9FA;
}

.mb-large {
    margin-bottom: 4rem;
}

.mb-2 {
    margin-bottom: 2rem;
}

.max-800 {
    max-width: 800px;
    margin: 0 auto;
}

.mt-4 {
    margin-top: 2rem;
}

.section-title {
    font-size: 2.5rem;
    margin-bottom: 1.5rem;
    color: var(--color-text-dark);
}

.section-label-cyan {
    color: var(--color-cyan);
    font-size: 0.9rem;
    letter-spacing: 2px;
    font-weight: 700;
    margin-bottom: 1rem;
    display: inline-block;
}

.container {
    width: 90%;
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 1rem;
}

.section {
    padding: var(--spacing-section) 0;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 0.8rem 1.6rem;
    font-family: var(--font-heading);
    text-transform: uppercase;
    font-weight: 500;
    letter-spacing: 1px;
    border: 1px solid transparent;
    cursor: pointer;
}

.btn-primary {
    background-color: var(--color-cyan);
    color: #000;
}

.btn-primary:hover {
    background-color: #00cccc;
    color: #000;
}

.btn-outline-light {
    background-color: transparent;
    border: 1px solid #fff;
    /* White border for dark bg */
    color: #fff;
}

.btn-outline-light:hover {
    background-color: #fff;
    color: #000;
}

.btn-whatsapp-solid {
    background-color: #25D366;
    color: #fff;
    padding: 1.2rem 3rem;
    font-size: 1.1rem;
}

.btn-whatsapp-solid:hover {
    background-color: #1FAF56;
}

/* Header */
.site-header {
    background: #F5F7FA;
    /* Technical Light Steel-Grey: "Almost White" */
    border-bottom: 2px solid #90A4AE;
    /* Structural Accent: Muted Steel-Blue */
    padding: 0;
    height: 150px;
    /* Adjusted height for large 120px logo */
    position: sticky;
    top: 0;
    z-index: 1000;
    display: flex;
    align-items: center;
}

.header-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 90%;
    max-width: var(--container-width);
    margin: 0 auto;
    height: 100%;
}

.header-logo-link {
    display: flex;
    align-items: center;
    height: 100%;
}

.header-logo-img {
    height: 120px;
    /* LARGE: 120px minimum per user request */
    width: auto;
    display: block;
}

.main-nav {
    display: flex;
    align-items: center;
    gap: 2.5rem;
}

.nav-links {
    display: flex;
    gap: 2rem;
}

.nav-links a {
    font-family: var(--font-heading);
    text-transform: uppercase;
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--color-text-dark);
    letter-spacing: 1px;
    position: relative;
    opacity: 0.8;
}

.nav-links a:hover {
    opacity: 1;
    color: var(--color-text-dark);
}

.btn-header {
    padding: 0.6rem 1.4rem;
    /* Slightly reduced dominance */
    font-size: 0.9rem;
    border: 1px solid var(--color-text-dark);
    /* Control Bar aesthetic */
    background: transparent;
    color: var(--color-text-dark);
}

.btn-header:hover {
    background: var(--color-text-dark);
    color: #fff;
}

/* Hero - RESTORED DARK THEME with LOCAL LOGO CONTRAST */
.hero-section {
    position: relative;
    height: 90vh;
    min-height: 700px;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    overflow: hidden;
    background-color: var(--color-heavy-metal);
    /* Dark Base */
}

.hero-bg-image {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-size: cover;
    background-position: center;
    opacity: 0.5;
    /* Visible structural image */
    filter: grayscale(100%) contrast(1.1);
    z-index: 1;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    /* UNIFORM DARK OVERLAY */
    background: rgba(15, 23, 42, 0.85);
    z-index: 2;
}

.hero-content {
    position: relative;
    z-index: 3;
    max-width: 900px;
    color: #ffffff;
    /* White Text */
    padding-top: 2rem;
    /* Slight lift since logo is gone */
}

.hero-logo-wrapper {
    display: none;
    /* Removed */
}

.hero-logo-img {
    display: none;
    /* Removed */
}

.hero-headline {
    font-size: 4rem;
    line-height: 1.1;
    margin-bottom: 2rem;
    color: #ffffff;
}

.accent-bar {
    width: 60px;
    height: 4px;
    background: var(--color-cyan);
    margin: 0 auto 2rem;
}

.hero-subline {
    font-size: 1.4rem;
    font-weight: 300;
    color: #dedede;
    margin-bottom: 3rem;
    max-width: 750px;
    margin-left: auto;
    margin-right: auto;
}

.cta-group {
    display: flex;
    justify-content: center;
    gap: 1.5rem;
}

/* Tekla & BIM Grid */
.caps-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 3rem;
    margin-top: 2rem;
}

.cap-item {
    border-left: 2px solid var(--color-cyan);
    padding-left: 1.5rem;
}

.cap-title {
    font-size: 1.3rem;
    margin-bottom: 0.5rem;
    color: #fff;
}

.cap-desc {
    color: #bbb;
    font-size: 0.95rem;
}

/* Services */
.editorial-row {
    display: flex;
    justify-content: space-between;
    gap: 3rem;
}

.editorial-col {
    flex: 1;
}

.service-icon-line {
    width: 40px;
    height: 4px;
    background: var(--color-text-dark);
    margin-bottom: 1.5rem;
}

.editorial-title {
    font-size: 1.6rem;
    margin-bottom: 1.5rem;
}

.service-list li {
    margin-bottom: 0.75rem;
    padding-left: 1rem;
    border-left: 1px solid #ddd;
    color: var(--color-text-grey);
}

/* Planning Depth Section */
.planning-section {
    background-color: var(--color-dark-surface);
    border-top: 1px solid #333;
    border-bottom: 1px solid #333;
}

.planning-layout {
    display: grid;
    grid-template-columns: 3fr 2fr;
    gap: 4rem;
    align-items: center;
}

.planning-text {
    font-size: 1.1rem;
    color: #ccc;
    margin-bottom: 2rem;
}

.plan-point {
    color: #fff;
    margin-bottom: 0.75rem;
    font-weight: 500;
}

.plan-bullet {
    color: var(--color-cyan);
    font-weight: bold;
    margin-right: 0.5rem;
    font-size: 1.2rem;
}

.bim-visual-box {
    background: #000;
    padding: 1rem;
    border: 1px solid #333;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
    text-align: center;
}

.planning-img {
    opacity: 0.9;
}

.img-caption {
    color: var(--color-cyan);
    font-family: var(--font-heading);
    font-size: 0.8rem;
    letter-spacing: 1px;
    margin-top: 1rem;
    text-transform: uppercase;
}

/* Workflow Track */
.workflow-track {
    display: flex;
    justify-content: center;
    align-items: center;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.track-node {
    font-family: var(--font-heading);
    font-weight: 700;
    text-transform: uppercase;
    font-size: 0.9rem;
    border: 2px solid #ddd;
    padding: 0.5rem 1rem;
    background: #fff;
}

.track-node.highlight {
    border-color: var(--color-cyan);
    background: var(--color-cyan);
    color: #000;
}

.track-link {
    width: 20px;
    height: 2px;
    background: #ddd;
}

.track-link.highlight {
    background: var(--color-cyan);
}

/* Why TrueStruct - Parallax */
.paralax-why {
    background-attachment: fixed;
    background-size: cover;
    background-position: center;
    position: relative;
    color: #fff;
}

.why-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.75);
    z-index: 1;
}

.why-grid {
    position: relative;
    z-index: 2;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
}

.why-card h4 {
    color: var(--color-cyan);
    font-size: 1.3rem;
    margin-bottom: 0.5rem;
}

.why-card p {
    color: #eee;
    font-size: 1rem;
}

/* Vision */
.vision-quote {
    font-size: 2.5rem;
    line-height: 1.3;
    color: var(--color-text-dark);
    max-width: 900px;
    margin: 0 auto;
    font-weight: 300;
}

/* About */
.about-lead {
    font-size: 1.4rem;
    color: var(--color-text-grey);
    font-weight: 300;
}

/* Contact */
.contact-sub {
    color: #aaa;
    margin-bottom: 2rem;
    font-size: 1.1rem;
}

.contact-meta {
    color: #555;
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 2px;
}

/* Footer */
.site-footer {
    background: #000;
    color: #444;
    padding: 2rem 0;
    text-align: center;
    font-size: 0.8rem;
    border-top: 1px solid #222;
}

/* Responsive */
@media (max-width: 768px) {
    .hero-headline {
        font-size: 2.5rem;
    }

    .editorial-row,
    .planning-layout {
        flex-direction: column;
        display: flex;
    }

    .planning-img {
        width: 100%;
    }

    .track-link {
        display: none;
    }

    .track-node {
        width: 100%;
        text-align: center;
        margin-bottom: 0.5rem;
    }

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

    .container {
        width: 92%;
    }


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

/* Estimator Styles */
.estimator-form {
    background: #fff;
    padding: 2rem;
    border: 1px solid #ddd;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.05);
    margin-bottom: 2rem;
}

.form-row.global-inputs {
    display: flex;
    gap: 2rem;
    margin-bottom: 2rem;
    flex-wrap: wrap;
}

.form-group {
    flex: 1;
    min-width: 250px;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: var(--color-text-dark);
    font-family: var(--font-heading);
    text-transform: uppercase;
    font-size: 0.9rem;
}

.form-control {
    width: 100%;
    padding: 0.8rem;
    border: 1px solid #ccc;
    font-family: var(--font-body);
    font-size: 1rem;
    outline: none;
}

.form-control:focus {
    border-color: var(--color-text-dark);
}

.form-helper {
    font-size: 0.8rem;
    color: var(--color-text-grey);
    margin-top: 0.4rem;
    font-style: italic;
}

.divider {
    height: 1px;
    background: #eee;
    margin: 2rem 0;
}

.disciplines-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
}

.discipline-card {
    background: #fdfdfd;
    padding: 1rem;
    border: 1px solid #eee;
}

.checkbox-wrapper {
    display: flex;
    align-items: center;
    gap: 0.8rem;
    margin-bottom: 1rem;
}

.discipline-toggle {
    width: 18px;
    height: 18px;
    cursor: pointer;
}

.checkbox-wrapper label {
    font-weight: 700;
    color: var(--color-text-dark);
    cursor: pointer;
}

.input-group label {
    display: block;
    font-size: 0.85rem;
    color: var(--color-text-grey);
    margin-bottom: 0.3rem;
}

.input-group input {
    width: 100%;
    padding: 0.5rem;
    border: 1px solid #ddd;
}

/* Estimator Result */
.estimate-result-box {
    background: #1a1a1a;
    color: #fff;
    padding: 2.5rem;
    text-align: center;
    border-top: 4px solid var(--color-cyan);
    margin-top: 2rem;
}

.result-label {
    color: #bbb;
    text-transform: uppercase;
    font-size: 0.9rem;
    letter-spacing: 1px;
    margin-bottom: 1rem;
}

.result-value {
    font-family: var(--font-heading);
    font-size: 2.5rem;
    color: var(--color-cyan);
    margin-bottom: 1rem;
    font-weight: 700;
}

.badge-fast-track {
    background: #333;
    color: var(--color-cyan);
    padding: 0.4rem 1rem;
    font-size: 0.8rem;
    text-transform: uppercase;
    border: 1px solid var(--color-cyan-dim);
    margin-bottom: 1rem;
}

.result-summary {
    color: #eee;
    margin-bottom: 1.5rem;
}

.disclaimer-text {
    font-size: 0.8rem;
    color: #888;
    max-width: 600px;
    margin: 0 auto;
    font-style: italic;
}

/* Mobile Responsiveness & Usability */
@media (max-width: 768px) {
    .estimator-form {
        padding: 1.5rem 1rem;
    }

    .form-row.global-inputs {
        gap: 1rem;
    }

    .form-group {
        min-width: 100%;
        /* Stack fully on mobile */
    }

    .disciplines-grid {
        grid-template-columns: 1fr;
        /* Single column for better input access */
    }

    .estimate-result-box {
        padding: 1.5rem 1rem;
    }

    .result-value {
        font-size: 2rem;
        /* Slightly smaller for mobile fitting */
    }

    /* Ensure buttons are large touch targets */
    .btn,
    .btn-whatsapp-solid {
        width: 100%;
        display: block;
        padding: 15px;
        text-align: center;
    }

    /* Adjust main header padding if needed */
    .site-header .container {
        padding: 0 1rem;
    }
}

/* Mobile Header Fix - Clean & Focused */
@media (max-width: 600px) {
    .nav-links {
        display: none !important;
    }

    .main-nav {
        gap: 0;
        /* Removing gap since only button remains */
    }
}

.btn-whatsapp-solid {
    display: inline-block;
    padding: 12px 30px;
    background-color: var(--color-cyan);
    color: #000;
    text-transform: uppercase;
    font-weight: 700;
    text-decoration: none;
    letter-spacing: 1px;
    transition: all 0.3s ease;
    border: 2px solid var(--color-cyan);
}

.btn-whatsapp-solid:hover {
    background-color: transparent;
    color: var(--color-cyan);
}

}


.header-contact{
    flex:1;
    display:flex;
    align-items:center;
    justify-content:center;
    color:#1f2937;
    font-size:15px;
    font-weight:500;
    white-space:nowrap;
    margin:0 30px;
}

@media (max-width:900px){
    .header-contact{
        display:none;
    }
}

.pricing-table{max-width:700px;margin:0 auto;border:1px solid #d8d8d8;border-radius:8px;overflow:hidden;background:#fff}
.pricing-row{display:flex;justify-content:space-between;padding:16px 20px;border-bottom:1px solid #ececec}
.pricing-row:last-child{border-bottom:none}
.pricing-row strong{color:#123a63}
@media(max-width:768px){.pricing-row{flex-direction:column;gap:6px}}