:root {
    /* Ocean Palette */
    --color-navy: #0b1d3a;
    --color-teal: #125c7a;
    --color-soft-blue: #88bdbc;
    --color-sand: #f4f6f7;
    --color-white: #ffffff;
    --color-text-main: #2d3748;
    --color-text-muted: #718096;
    
    /* Typography */
    --font-primary: 'Nunito', sans-serif;
    
    /* Asymmetric Spacing (Vertical Rhythm Leakage) */
    --space-xs: 0.5rem;
    --space-sm: 1.2rem;
    --space-md: 2.5rem;
    --space-lg: 5rem;
    --space-xl: 8rem;
    --radius-soft: 12px;
}

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

body {
    font-family: var(--font-primary);
    color: var(--color-text-main);
    background-color: var(--color-sand);
    line-height: 1.6;
    overflow-x: hidden;
}

img {
    width: 100%;
    height: auto;
    object-fit: cover;
    display: block;
    border-radius: var(--radius-soft);
}

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

/* Buttons */
.dd-btn-primary, .dd-btn-secondary {
    display: inline-block;
    padding: 0.8rem 1.8rem;
    border-radius: 50px;
    font-weight: 800;
    text-align: center;
    cursor: pointer;
    transition: transform 0.2s ease, background-color 0.3s;
    border: none;
    font-size: 1rem;
    font-family: var(--font-primary);
}

.dd-btn-primary {
    background-color: var(--color-teal);
    color: var(--color-white);
}
.dd-btn-primary:hover {
    background-color: var(--color-navy);
    transform: translateY(-2px);
}

.dd-btn-secondary {
    background-color: transparent;
    color: var(--color-navy);
    border: 2px solid var(--color-navy);
}
.dd-btn-secondary:hover {
    background-color: var(--color-navy);
    color: var(--color-white);
}

.dd-btn-full {
    width: 100%;
}

/* Header */
.dd-canopy {
    background-color: var(--color-white);
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 2px 15px rgba(11, 29, 58, 0.05);
}

.dd-canopy-inner {
    max-width: 1200px;
    margin: 0 auto;
    padding: var(--space-sm) var(--space-md);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
}

.dd-brand-mark {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 800;
    font-size: 1.4rem;
    color: var(--color-navy);
}

.dd-navigation-flow {
    display: flex;
    align-items: center;
    gap: 2rem;
    font-weight: 600;
}

.dd-navigation-flow a:not(.dd-btn-primary):hover {
    color: var(--color-teal);
}

/* Hero */
.dd-elevation-front {
    padding: var(--space-xl) var(--space-md) var(--space-lg);
    max-width: 1000px;
    margin: 0 auto;
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-md);
}

.dd-micro-badge {
    background-color: var(--color-soft-blue);
    color: var(--color-navy);
    padding: 0.3rem 1rem;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 800;
    letter-spacing: 0.5px;
    text-transform: uppercase;
}

.dd-headline-major {
    font-size: clamp(2.5rem, 5vw, 4.5rem);
    color: var(--color-navy);
    line-height: 1.1;
    letter-spacing: -1px;
}

.dd-sub-narrative {
    font-size: 1.2rem;
    color: var(--color-text-muted);
    max-width: 700px;
}

.dd-action-cluster {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
    margin-top: var(--space-sm);
}

.dd-hero-visual {
    width: 100%;
    margin-top: var(--space-md);
}

.dd-hero-visual img {
    max-height: 500px;
}

/* Common Section */
.dd-section-title {
    font-size: 2.2rem;
    color: var(--color-navy);
    margin-bottom: var(--space-sm);
}

/* About / Story Wing */
.dd-story-wing {
    background-color: var(--color-white);
    padding: var(--space-xl) var(--space-md);
}

.dd-story-matrix {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: var(--space-lg);
    align-items: center;
}

.dd-story-prose p {
    margin-bottom: 1.2rem;
    font-size: 1.05rem;
}

.dd-stat-block {
    margin-top: var(--space-md);
    padding: var(--space-sm);
    background-color: var(--color-sand);
    border-left: 4px solid var(--color-teal);
    border-radius: 0 var(--radius-soft) var(--radius-soft) 0;
    display: inline-block;
}

.dd-stat-number {
    display: block;
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--color-teal);
    line-height: 1;
}

.dd-stat-label {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--color-navy);
    text-transform: uppercase;
}

/* Solutions / Services Tabs */
.dd-solutions-grid {
    padding: var(--space-lg) var(--space-md);
    max-width: 1000px;
    margin: 0 auto;
}

.dd-section-header {
    text-align: center;
    margin-bottom: var(--space-md);
}

.dd-tab-nav {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-bottom: var(--space-md);
    flex-wrap: wrap;
}

.dd-tab-btn {
    background: var(--color-white);
    border: none;
    padding: 1rem 2rem;
    border-radius: var(--radius-soft);
    font-family: var(--font-primary);
    font-weight: 600;
    font-size: 1rem;
    color: var(--color-text-muted);
    cursor: pointer;
    box-shadow: 0 4px 6px rgba(0,0,0,0.02);
    transition: all 0.3s ease;
}

.dd-tab-btn.active {
    background: var(--color-navy);
    color: var(--color-white);
    box-shadow: 0 6px 15px rgba(11, 29, 58, 0.2);
}

.dd-tab-pane {
    display: none;
    animation: fadeIn 0.5s ease;
}

.dd-tab-pane.active {
    display: block;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

.dd-pane-split {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-md);
    background: var(--color-white);
    padding: var(--space-md);
    border-radius: var(--radius-soft);
    align-items: center;
}

.dd-pane-text h3 {
    color: var(--color-teal);
    margin-bottom: 1rem;
    font-size: 1.5rem;
}

/* Benefits / Pillars */
.dd-core-pillars {
    background-color: var(--color-navy);
    color: var(--color-white);
    padding: var(--space-lg) var(--space-md);
}

.dd-pillar-wrap {
    max-width: 1200px;
    margin: 0 auto;
}

.dd-core-pillars .dd-section-title {
    color: var(--color-soft-blue);
    text-align: center;
}

.dd-pillar-row {
    display: flex;
    gap: var(--space-md);
    justify-content: space-between;
    margin-top: var(--space-md);
    flex-wrap: wrap;
}

.dd-pillar-card {
    flex: 1;
    min-width: 250px;
    background: rgba(255,255,255,0.05);
    padding: var(--space-md);
    border-radius: var(--radius-soft);
    border-top: 3px solid var(--color-teal);
}

.dd-pillar-card h4 {
    font-size: 1.2rem;
    margin-bottom: 0.8rem;
    color: var(--color-white);
}

.dd-tiny-disclaimer {
    font-size: 0.75rem;
    color: rgba(255,255,255,0.5);
    text-align: center;
    margin-top: var(--space-md);
}

/* Testimonials */
.dd-client-reflections {
    padding: var(--space-xl) var(--space-md);
    max-width: 1200px;
    margin: 0 auto;
}

.dd-testimonial-masonry {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--space-md);
    margin-top: var(--space-md);
}

.dd-quote-card {
    background: var(--color-white);
    padding: var(--space-md);
    border-radius: var(--radius-soft);
    box-shadow: 0 10px 30px rgba(0,0,0,0.03);
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.dd-card-offset {
    transform: translateY(20px);
}

.dd-quote-text {
    font-style: italic;
    color: var(--color-text-main);
    margin-bottom: 1.5rem;
}

.dd-quote-author {
    display: flex;
    align-items: center;
    gap: 15px;
}

.dd-quote-author img {
    width: 50px;
    height: 50px;
    border-radius: 50%;
}

.dd-quote-author span {
    font-weight: 800;
    color: var(--color-navy);
    font-size: 0.9rem;
}

/* Contact Form */
.dd-inquiry-zone {
    background-color: var(--color-white);
    padding: var(--space-xl) var(--space-md);
}

.dd-inquiry-layout {
    max-width: 1000px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-lg);
    align-items: center;
}

.dd-structural-form {
    margin-top: var(--space-md);
}

.dd-input-group {
    margin-bottom: 1.2rem;
}

.dd-input-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
    font-size: 0.9rem;
    color: var(--color-navy);
}

.dd-input-group input,
.dd-input-group textarea {
    width: 100%;
    padding: 0.8rem;
    border: 1px solid #cbd5e0;
    border-radius: 8px;
    font-family: var(--font-primary);
    background-color: var(--color-sand);
    transition: border-color 0.3s;
}

.dd-input-group input:focus,
.dd-input-group textarea:focus {
    outline: none;
    border-color: var(--color-teal);
    background-color: var(--color-white);
}

/* Footer */
.dd-foundation {
    background-color: #050d1a;
    color: var(--color-sand);
    padding: var(--space-lg) var(--space-md) var(--space-sm);
}

.dd-foundation-inner {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: var(--space-md);
    border-bottom: 1px solid rgba(255,255,255,0.1);
    padding-bottom: var(--space-md);
}

.dd-light-mark {
    color: var(--color-white);
    margin-bottom: 1rem;
}

.dd-foot-address, .dd-foot-phone {
    color: #a0aec0;
    font-size: 0.9rem;
    margin-bottom: 0.5rem;
}

.dd-foot-links h4 {
    color: var(--color-white);
    margin-bottom: 1rem;
}

.dd-foot-links a {
    display: block;
    color: #a0aec0;
    margin-bottom: 0.5rem;
    font-size: 0.9rem;
}

.dd-foot-links a:hover {
    color: var(--color-soft-blue);
}

.dd-dim-link {
    opacity: 0.5;
}

.dd-foundation-bottom {
    max-width: 1200px;
    margin: var(--space-sm) auto 0;
    text-align: center;
    font-size: 0.85rem;
    color: #718096;
}

/* Internal Pages */
.dd-legal-content {
    max-width: 800px;
    margin: var(--space-xl) auto;
    padding: 0 var(--space-md);
}

.dd-legal-content h1 {
    color: var(--color-navy);
    margin-bottom: var(--space-md);
}

.dd-legal-content h2 {
    color: var(--color-teal);
    margin: var(--space-sm) 0 var(--space-xs);
}

.dd-legal-content p {
    margin-bottom: 1rem;
}

/* Responsive Breakpoints */
@media (max-width: 900px) {
    .dd-story-matrix, .dd-inquiry-layout {
        grid-template-columns: 1fr;
    }
    .dd-story-visual {
        order: -1;
    }
    .dd-card-offset {
        transform: none;
    }
    .dd-foundation-inner {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 600px) {
    .dd-canopy-inner {
        flex-direction: column;
        gap: 1rem;
    }
    .dd-navigation-flow {
        flex-wrap: wrap;
        justify-content: center;
        gap: 1rem;
    }
    .dd-pane-split {
        grid-template-columns: 1fr;
    }
    .dd-headline-major {
        font-size: 2.2rem;
    }
    .dd-action-cluster {
        flex-direction: column;
        width: 100%;
    }
    .dd-action-cluster a {
        width: 100%;
    }
}