/* ============================================================
   OmniEdge — Brand Stylesheet
   ============================================================ */

/* --- Custom Properties ------------------------------------ */
:root {
    --color-bg:          #0F172A;
    --color-bg-section:  #111827;
    --color-bg-card:     #1E293B;
    --color-bg-light:    #F8FAFC;
    --color-accent:      #2563EB;
    --color-accent-dark: #1D4ED8;
    --color-green:       #22C55E;
    --color-text:        #1E293B;
    --color-text-light:  #F1F5F9;
    --color-text-muted:  #64748B;
    --color-text-muted-light: #94A3B8;
    --color-border:      #1E293B;
    --color-border-light: #E2E8F0;

    --font-body:     'Inter', system-ui, Arial, sans-serif;
    --font-heading:  'Space Grotesk', system-ui, Arial, sans-serif;

    --size-h1:  clamp(2.5rem, 5vw, 3.5rem);
    --size-h2:  clamp(1.75rem, 3vw, 2.25rem);
    --size-h3:  1.5rem;
    --size-body: 1.125rem;

    --max-width: 1200px;
    --section-gap: 5rem;
    --card-radius: 8px;
    --btn-radius: 6px;
}

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

html { scroll-behavior: smooth; }

body {
    font-family: var(--font-body);
    font-size: var(--size-body);
    color: var(--color-text);
    background: #fff;
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
}

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

a { color: inherit; text-decoration: none; }

ul[role="list"] { list-style: none; }

/* --- Typography ------------------------------------------- */
h1, h2, h3, h4 {
    font-family: var(--font-heading);
    font-weight: 700;
    line-height: 1.2;
    color: inherit;
}

h1 { font-size: var(--size-h1); }
h2 { font-size: var(--size-h2); }
h3 { font-size: var(--size-h3); }

/* --- Layout Helpers --------------------------------------- */
.container {
    width: 100%;
    max-width: var(--max-width);
    margin-inline: auto;
    padding-inline: 1.5rem;
}

.section { padding-block: var(--section-gap); }
.section--dark { background: var(--color-bg); color: var(--color-text-light); }
.section--slate { background: var(--color-bg-section); color: var(--color-text-light); }
.section--light { background: #E2E8F0; }

.section-label {
    font-family: var(--font-body);
    font-size: 0.8125rem;
    font-weight: 600;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--color-green);
    margin-bottom: 0.75rem;
}

.section-title {
    font-family: var(--font-heading);
    font-size: var(--size-h2);
    font-weight: 700;
    margin-bottom: 1rem;
}

.section-intro {
    font-size: 1.125rem;
    color: var(--color-text-muted);
    max-width: 600px;
}

.section--dark .section-intro,
.section--slate .section-intro {
    color: var(--color-text-muted-light);
}

/* --- Buttons ---------------------------------------------- */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    border-radius: var(--btn-radius);
    font-family: var(--font-body);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    border: 2px solid transparent;
    transition: background 0.2s, color 0.2s, border-color 0.2s, transform 0.15s;
    white-space: nowrap;
    text-decoration: none;
}

.btn:hover { transform: translateY(-1px); }
.btn:active { transform: translateY(0); }

.btn-primary {
    background: var(--color-accent);
    color: #fff;
    border-color: var(--color-accent);
}
.btn-primary:hover {
    background: var(--color-accent-dark);
    border-color: var(--color-accent-dark);
    color: #fff;
}

.btn-secondary {
    background: transparent;
    color: var(--color-text-light);
    border-color: #64748B;
}
.btn-secondary:hover {
    border-color: #94A3B8;
    color: #fff;
}

.btn-outline {
    background: transparent;
    color: var(--color-accent);
    border-color: var(--color-accent);
}
.btn-outline:hover {
    background: var(--color-accent);
    color: #fff;
}

.btn-group {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    align-items: center;
}

/* --- Navigation ------------------------------------------- */
.site-header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(30, 41, 59, 0.97);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(255,255,255,0.07);
    transition: box-shadow 0.3s;
}

.site-header.scrolled {
    box-shadow: 0 4px 24px rgba(0,0,0,0.4);
}

.nav-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    max-width: var(--max-width);
    margin-inline: auto;
    padding: 1rem 1.5rem;
    gap: 2rem;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 0.625rem;
    text-decoration: none;
    flex-shrink: 0;
}

.logo-text {
    font-family: var(--font-heading);
    font-size: 1.25rem;
    font-weight: 600;
    color: #F1F5F9;
    letter-spacing: -0.01em;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 0.25rem;
    list-style: none;
    margin: 0;
    padding: 0;
}

.nav-link {
    font-size: 0.9375rem;
    font-weight: 500;
    color: #94A3B8;
    padding: 0.5rem 0.875rem;
    border-radius: 6px;
    transition: color 0.2s, background 0.2s;
    text-decoration: none;
}

.nav-link:hover,
.nav-link.active {
    color: #F1F5F9;
    background: rgba(255,255,255,0.06);
}

.nav-link-cta {
    color: #fff;
    background: var(--color-accent);
    padding: 0.5rem 1.125rem;
    margin-left: 0.5rem;
}

.nav-link-cta:hover {
    background: var(--color-accent-dark);
    color: #fff;
}

/* Mobile toggle */
.nav-toggle {
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 36px;
    height: 36px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px;
}

.nav-toggle span {
    display: block;
    width: 100%;
    height: 2px;
    background: #94A3B8;
    border-radius: 2px;
    transition: transform 0.3s, opacity 0.3s;
}

/* --- Cards ------------------------------------------------ */
.card {
    background: var(--color-bg-card);
    border: 1px solid rgba(255,255,255,0.07);
    border-radius: var(--card-radius);
    padding: 2.25rem;
    transition: border-color 0.2s, transform 0.25s, box-shadow 0.25s;
}

.card:hover {
    border-color: rgba(37, 99, 235, 0.4);
    transform: translateY(-6px);
    box-shadow: 0 16px 40px rgba(0,0,0,0.25);
}

.card-icon {
    width: 64px;
    height: 64px;
    background: rgba(37, 99, 235, 0.15);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
    color: var(--color-accent);
    font-size: 1.25rem;
}

.card h3 {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: 0.75rem;
    color: var(--color-text-light);
}

.card p {
    font-size: 0.9375rem;
    color: var(--color-text-muted-light);
    line-height: 1.7;
}

.card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 1.5rem;
}

/* --- Tag / Chip ------------------------------------------- */
.tag-list {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    list-style: none;
    padding: 0;
    margin: 0;
}

.tag {
    font-size: 0.8125rem;
    font-weight: 500;
    padding: 0.25rem 0.75rem;
    border-radius: 999px;
    background: rgba(37, 99, 235, 0.12);
    color: #93C5FD;
    border: 1px solid rgba(37, 99, 235, 0.25);
}

/* --- Page Hero (interior pages) --------------------------- */
.page-hero {
    background: var(--color-bg);
    color: var(--color-text-light);
    padding: 5rem 0 4rem;
    border-bottom: 1px solid rgba(255,255,255,0.07);
}

.page-hero h1 {
    font-size: clamp(2rem, 4vw, 3rem);
    margin-bottom: 1rem;
}

.page-hero p {
    font-size: 1.125rem;
    color: var(--color-text-muted-light);
    max-width: 600px;
}

/* --- Footer ----------------------------------------------- */
.site-footer {
    background: #1E293B;
    color: var(--color-text-light);
    border-top: 1px solid rgba(255,255,255,0.07);
    padding-top: 3.5rem;
}

.footer-grid {
    display: grid;
    grid-template-columns: 1fr auto auto;
    gap: 3rem;
    padding-bottom: 3rem;
}

.footer-logo { margin-bottom: 1rem; }

.footer-descriptor {
    font-size: 0.8125rem;
    font-weight: 600;
    color: #94A3B8;
    letter-spacing: 0.03em;
    margin-bottom: 0.375rem;
}

.footer-tagline {
    font-size: 0.9375rem;
    color: var(--color-text-muted-light);
    line-height: 1.7;
}

.footer-heading {
    font-family: var(--font-heading);
    font-size: 0.875rem;
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--color-text-muted-light);
    margin-bottom: 1rem;
}

.footer-nav ul { list-style: none; padding: 0; }
.footer-nav li + li { margin-top: 0.625rem; }
.footer-nav a {
    font-size: 0.9375rem;
    color: #94A3B8;
    transition: color 0.2s;
}
.footer-nav a:hover { color: #F1F5F9; }

.footer-email {
    font-size: 0.9375rem;
    color: var(--color-accent);
    text-decoration: none;
    transition: color 0.2s;
}
.footer-email:hover { color: #93C5FD; }

.footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.07);
    padding: 1.25rem 0;
}

.footer-bottom p {
    font-size: 0.875rem;
    color: var(--color-text-muted-light);
}

/* --- Hero ------------------------------------------------- */
.hero {
    position: relative;
    padding: 7rem 0 6rem;
    overflow: hidden;
    background: radial-gradient(circle at 30% 20%, #1E293B 0%, #0F172A 70%);
}

.hero-content {
    position: relative;
    z-index: 1;
    max-width: 720px;
}

.hero-headline {
    font-size: var(--size-h1);
    font-weight: 700;
    margin-bottom: 1.5rem;
    letter-spacing: -0.02em;
    line-height: 1.1;
}

.hero-sub {
    font-size: 1.25rem;
    color: var(--color-text-muted-light);
    margin-bottom: 2.5rem;
    max-width: 580px;
    line-height: 1.7;
}

.hero-bg-grid {
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(37, 99, 235, 0.04) 1px, transparent 1px),
        linear-gradient(90deg, rgba(37, 99, 235, 0.04) 1px, transparent 1px);
    background-size: 48px 48px;
    pointer-events: none;
}

/* --- Section Header --------------------------------------- */
.section-header { max-width: 640px; margin-bottom: 0; }

/* --- Expertise Grid --------------------------------------- */
.expertise-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 2.5rem;
}

.expertise-group-title {
    font-size: 0.875rem;
    font-weight: 600;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--color-text-muted-light);
    margin-bottom: 1rem;
}

/* --- Approach --------------------------------------------- */
.approach-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
}

.approach-item {
    padding: 2rem;
    border-radius: var(--card-radius);
    background: #fff;
    border: 1px solid var(--color-border-light);
    box-shadow: 0 1px 4px rgba(0,0,0,0.06);
}

.approach-number {
    font-family: var(--font-heading);
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--color-accent);
    opacity: 0.25;
    line-height: 1;
    margin-bottom: 1rem;
}

.approach-item h3 {
    font-size: 1.125rem;
    color: var(--color-text);
    margin-bottom: 0.75rem;
}

.approach-item p {
    font-size: 0.9375rem;
    color: var(--color-text-muted);
    line-height: 1.7;
}

/* --- About Preview ---------------------------------------- */
.about-preview {
    display: grid;
    grid-template-columns: 1fr auto;
    gap: 4rem;
    align-items: center;
}

.about-preview-stat-group {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    min-width: 220px;
}

.stat-card {
    background: rgba(255,255,255,0.04);
    border: 1px solid rgba(255,255,255,0.08);
    border-radius: var(--card-radius);
    padding: 1.25rem 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.stat-value {
    font-family: var(--font-heading);
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--color-text-light);
}

.stat-label {
    font-size: 0.8125rem;
    color: var(--color-text-muted-light);
}

/* --- CTA Block -------------------------------------------- */
.cta-block { max-width: 640px; }

/* --- Services Page ---------------------------------------- */
.service-section { border-bottom: 1px solid rgba(255,255,255,0.06); }

.service-layout {
    display: grid;
    grid-template-columns: 80px 1fr;
    gap: 2.5rem;
    align-items: start;
}

.service-layout--reverse {
    grid-template-columns: 80px 1fr;
}

.service-icon-wrap {
    width: 72px;
    height: 72px;
    background: rgba(37, 99, 235, 0.12);
    border: 1px solid rgba(37, 99, 235, 0.2);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-accent);
    flex-shrink: 0;
    margin-top: 0.25rem;
}

.service-title {
    font-size: clamp(1.5rem, 2.5vw, 2rem);
    font-weight: 700;
    margin-bottom: 1rem;
    color: var(--color-text-light);
}

.service-description {
    font-size: 1.0625rem;
    color: var(--color-text-muted-light);
    line-height: 1.75;
    max-width: 640px;
    margin-bottom: 2rem;
}

.includes-title {
    font-size: 0.8125rem;
    font-weight: 600;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--color-text-muted-light);
    margin-bottom: 1rem;
}

.includes-list {
    list-style: none;
    padding: 0;
    margin: 0;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 0.625rem;
}

.includes-list li {
    display: flex;
    align-items: center;
    gap: 0.625rem;
    font-size: 0.9375rem;
    color: #CBD5E1;
}

.includes-list li svg {
    color: var(--color-green);
    flex-shrink: 0;
}

/* --- Expertise Page --------------------------------------- */
.expertise-section-layout {
    display: grid;
    grid-template-columns: 280px 1fr;
    gap: 4rem;
    align-items: start;
}

.expertise-category-icon {
    width: 56px;
    height: 56px;
    background: rgba(37, 99, 235, 0.12);
    border: 1px solid rgba(37, 99, 235, 0.2);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-accent);
    margin-bottom: 1.25rem;
}

.expertise-category-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-text-light);
    margin-bottom: 0.875rem;
}

.expertise-category-desc {
    font-size: 0.9375rem;
    color: var(--color-text-muted-light);
    line-height: 1.7;
}

.expertise-skills-panel {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 1.25rem;
}

.skill-block {
    background: rgba(255,255,255,0.03);
    border: 1px solid rgba(255,255,255,0.07);
    border-radius: var(--card-radius);
    padding: 1.5rem;
    transition: border-color 0.2s;
}

.skill-block:hover {
    border-color: rgba(37, 99, 235, 0.35);
}

.skill-block--featured {
    border-color: rgba(37, 99, 235, 0.25);
    background: rgba(37, 99, 235, 0.06);
}

.skill-block-lang {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-accent);
    opacity: 0.6;
    line-height: 1;
    margin-bottom: 0.75rem;
    font-variant-numeric: tabular-nums;
}

.skill-block-title {
    font-size: 1rem;
    font-weight: 600;
    color: var(--color-text-light);
    margin-bottom: 0.625rem;
}

.skill-block-desc {
    font-size: 0.875rem;
    color: var(--color-text-muted-light);
    line-height: 1.7;
}

/* --- About Page ------------------------------------------- */
.about-overview {
    display: grid;
    grid-template-columns: 1fr 380px;
    gap: 5rem;
    align-items: start;
}

.about-body p {
    font-size: 1.0625rem;
    color: var(--color-text-muted-light);
    line-height: 1.8;
    margin-bottom: 1.25rem;
}

.about-body p:last-child { margin-bottom: 0; }

.about-overview-values {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.value-item {
    display: flex;
    gap: 1rem;
    align-items: flex-start;
}

.value-icon {
    width: 40px;
    height: 40px;
    background: rgba(37, 99, 235, 0.12);
    border: 1px solid rgba(37, 99, 235, 0.2);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-accent);
    flex-shrink: 0;
    margin-top: 0.125rem;
}

.value-title {
    font-size: 0.9375rem;
    font-weight: 600;
    color: var(--color-text-light);
    margin-bottom: 0.375rem;
}

.value-desc {
    font-size: 0.875rem;
    color: var(--color-text-muted-light);
    line-height: 1.65;
}

/* Founder */
.founder-layout {
    display: grid;
    grid-template-columns: 140px 1fr;
    gap: 3.5rem;
    align-items: start;
}

.founder-avatar {
    width: 120px;
    height: 120px;
    background: rgba(37, 99, 235, 0.1);
    border: 2px solid rgba(37, 99, 235, 0.2);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-accent);
    flex-shrink: 0;
}

.founder-name {
    font-size: clamp(1.75rem, 3vw, 2.25rem);
    font-weight: 700;
    color: var(--color-text-light);
    margin-bottom: 0.375rem;
}

.founder-title {
    font-size: 0.9375rem;
    color: var(--color-green);
    font-weight: 500;
    margin-bottom: 1.75rem;
}

.founder-bio p {
    font-size: 1.0625rem;
    color: var(--color-text-muted-light);
    line-height: 1.8;
    margin-bottom: 1.125rem;
}

.founder-bio p:last-child { margin-bottom: 0; }

.founder-skills { margin-top: 1.75rem; }

/* Focus grid */
.focus-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 1.5rem;
}

.focus-item {
    background: rgba(255,255,255,0.03);
    border: 1px solid rgba(255,255,255,0.07);
    border-radius: var(--card-radius);
    padding: 1.75rem;
    transition: border-color 0.2s;
}

.focus-item:hover { border-color: rgba(37, 99, 235, 0.35); }

.focus-item h3 {
    font-size: 1.0625rem;
    font-weight: 600;
    color: var(--color-text-light);
    margin-bottom: 0.75rem;
}

.focus-item p {
    font-size: 0.9375rem;
    color: var(--color-text-muted-light);
    line-height: 1.7;
}

/* --- Contact Page ----------------------------------------- */
.hero-supporting-text {
    margin-top: 1rem;
    font-size: 1rem;
    color: var(--color-text-muted-light);
}

/* Layout: form left, info right */
.contact-layout {
    display: grid;
    grid-template-columns: 1fr 320px;
    gap: 4rem;
    align-items: start;
    max-width: 900px;
}

/* Form panel */
.contact-form-wrap {
    background: rgba(255,255,255,0.03);
    border: 1px solid rgba(255,255,255,0.08);
    border-radius: 12px;
    padding: 2.5rem;
}

.contact-form-title {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--color-text-light);
    margin-bottom: 0.5rem;
}

.contact-form-intro {
    font-size: 0.9375rem;
    color: var(--color-text-muted-light);
    line-height: 1.65;
    margin-bottom: 1.75rem;
}

.contact-form { display: flex; flex-direction: column; gap: 1.125rem; }

.form-row { display: flex; flex-direction: column; }
.form-row--two { display: grid; grid-template-columns: 1fr 1fr; gap: 1.125rem; }

.form-field { display: flex; flex-direction: column; gap: 0.4rem; }

.form-label {
    font-size: 0.875rem;
    font-weight: 500;
    color: #CBD5E1;
}

.form-required { color: var(--color-accent); }
.form-optional { font-weight: 400; color: var(--color-text-muted-light); font-size: 0.8125rem; }

.form-input {
    background: rgba(255,255,255,0.05);
    border: 1px solid rgba(255,255,255,0.12);
    border-radius: 7px;
    padding: 0.75rem 1rem;
    font-family: var(--font-body);
    font-size: 0.9375rem;
    color: var(--color-text-light);
    outline: none;
    transition: border-color 0.2s, box-shadow 0.2s;
    width: 100%;
}

.form-input::placeholder { color: #475569; }

.form-input:focus {
    border-color: var(--color-accent);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.18);
}

.form-textarea {
    resize: vertical;
    min-height: 130px;
    line-height: 1.65;
}

.form-error {
    font-size: 0.8125rem;
    color: #F87171;
}

.form-validation-summary {
    background: rgba(248, 113, 113, 0.1);
    border: 1px solid rgba(248, 113, 113, 0.25);
    border-radius: 6px;
    padding: 0.875rem 1rem;
    font-size: 0.875rem;
    color: #FCA5A5;
}

.form-validation-summary:empty { display: none; }

.btn-submit { align-self: flex-start; }

/* Success state */
.form-success {
    display: flex;
    flex-direction: row;
    align-items: flex-start;
    gap: 1.25rem;
    padding: 2rem;
    background: rgba(34, 197, 94, 0.08);
    border: 1px solid rgba(34, 197, 94, 0.2);
    border-radius: var(--card-radius);
}

.form-success-icon {
    color: var(--color-green);
    flex-shrink: 0;
    margin-top: 0.125rem;
}

.form-success h3 {
    font-size: 1.125rem;
    color: var(--color-text-light);
    margin-bottom: 0.375rem;
}

.form-success p {
    font-size: 0.9375rem;
    color: var(--color-text-muted-light);
    line-height: 1.6;
}

.form-success-note {
    margin-top: 0.375rem;
    font-size: 0.875rem !important;
    color: #64748B !important;
}

/* Right info column */
.contact-info {
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
    position: sticky;
    top: 100px;
}

.contact-info-card {
    background: rgba(255,255,255,0.03);
    border: 1px solid rgba(255,255,255,0.07);
    border-radius: var(--card-radius);
    padding: 1.375rem 1.5rem;
}

.contact-info-card-title {
    font-family: var(--font-heading);
    font-size: 0.8125rem;
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--color-text-muted-light);
    margin-bottom: 0.75rem;
}

.contact-direct-email {
    display: flex;
    align-items: center;
    gap: 0.625rem;
    color: var(--color-accent);
}

.contact-direct-email svg { flex-shrink: 0; }

.contact-direct-email a {
    font-size: 1rem;
    font-weight: 500;
    color: var(--color-accent);
    text-decoration: none;
    transition: color 0.2s;
    word-break: break-all;
}

.contact-direct-email a:hover { color: #93C5FD; }

.contact-info-card-text {
    font-size: 0.9rem;
    color: var(--color-text-muted-light);
    line-height: 1.65;
}

.contact-prefer-email {
    padding: 1.25rem 1.5rem;
    border: 1px dashed rgba(255,255,255,0.1);
    border-radius: var(--card-radius);
    text-align: center;
}

.contact-prefer-label {
    font-size: 0.8125rem;
    color: var(--color-text-muted-light);
    margin-bottom: 0.375rem;
}

.contact-prefer-link {
    font-size: 0.9375rem;
    font-weight: 500;
    color: var(--color-accent);
    text-decoration: none;
    transition: color 0.2s;
}

.contact-prefer-link:hover { color: #93C5FD; }

/* ============================================================
   Light Section Color System
   ============================================================ */
.section--gray { background: #D4DCE6; }

/* Shared text overrides */
.section--light,
.section--gray {
    color: var(--color-text);
}

.section--light .section-label,
.section--gray .section-label {
    color: var(--color-accent);
}

.section--light .section-title,
.section--gray .section-title {
    color: var(--color-text);
}

.section--light .section-intro,
.section--gray .section-intro {
    color: var(--color-text-muted);
}

/* Cards */
.section--light .card,
.section--gray .card {
    background: #F8FAFC;
    border-color: #C8D3DF;
    box-shadow: 0 1px 4px rgba(0,0,0,0.08);
}

.section--light .card:hover,
.section--gray .card:hover {
    border-color: rgba(37,99,235,0.3);
    box-shadow: 0 16px 40px rgba(0,0,0,0.1);
    transform: translateY(-6px);
}

.section--light .card h3,
.section--gray .card h3 { color: var(--color-text); }

.section--light .card p,
.section--gray .card p { color: var(--color-text-muted); }

.section--light .card-icon,
.section--gray .card-icon { background: rgba(37,99,235,0.08); }

/* Tags */
.section--light .tag,
.section--gray .tag {
    background: rgba(37,99,235,0.07);
    color: #1D4ED8;
    border-color: rgba(37,99,235,0.18);
}

/* Expertise grid titles */
.section--light .expertise-group-title,
.section--gray .expertise-group-title { color: var(--color-text-muted); }

/* Skill blocks */
.section--light .skill-block,
.section--gray .skill-block {
    background: #F8FAFC;
    border-color: #C8D3DF;
}

.section--light .skill-block:hover,
.section--gray .skill-block:hover {
    border-color: rgba(37,99,235,0.3);
    box-shadow: 0 2px 8px rgba(0,0,0,0.06);
}

.section--light .skill-block--featured,
.section--gray .skill-block--featured {
    background: rgba(37,99,235,0.04);
    border-color: rgba(37,99,235,0.2);
}

.section--light .skill-block-lang,
.section--gray .skill-block-lang { color: var(--color-accent); opacity: 0.5; }

.section--light .skill-block-title,
.section--gray .skill-block-title { color: var(--color-text); }

.section--light .skill-block-desc,
.section--gray .skill-block-desc { color: var(--color-text-muted); }

/* Expertise category header */
.section--light .expertise-category-icon,
.section--gray .expertise-category-icon {
    background: rgba(37,99,235,0.08);
    border-color: rgba(37,99,235,0.18);
}

.section--light .expertise-category-title,
.section--gray .expertise-category-title { color: var(--color-text); }

.section--light .expertise-category-desc,
.section--gray .expertise-category-desc { color: var(--color-text-muted); }

/* Service page */
.section--light .service-icon-wrap,
.section--gray .service-icon-wrap {
    background: rgba(37,99,235,0.08);
    border-color: rgba(37,99,235,0.18);
}

.section--light .service-title,
.section--gray .service-title { color: var(--color-text); }

.section--light .service-description,
.section--gray .service-description { color: var(--color-text-muted); }

.section--light .includes-title,
.section--gray .includes-title { color: var(--color-text-muted); }

.section--light .includes-list li,
.section--gray .includes-list li { color: #374151; }

.section--light .service-section,
.section--gray .service-section { border-bottom-color: var(--color-border-light); }

/* About page */
.section--light .about-body p,
.section--gray .about-body p { color: var(--color-text-muted); }

.section--light .value-icon,
.section--gray .value-icon {
    background: rgba(37,99,235,0.08);
    border-color: rgba(37,99,235,0.18);
}

.section--light .value-title,
.section--gray .value-title { color: var(--color-text); }

.section--light .value-desc,
.section--gray .value-desc { color: var(--color-text-muted); }

.section--light .founder-name,
.section--gray .founder-name { color: var(--color-text); }

.section--light .founder-avatar,
.section--gray .founder-avatar {
    background: rgba(37,99,235,0.08);
    border-color: rgba(37,99,235,0.2);
}

.section--light .founder-bio p,
.section--gray .founder-bio p { color: var(--color-text-muted); }

.section--light .focus-item,
.section--gray .focus-item {
    background: #F8FAFC;
    border-color: #C8D3DF;
}

.section--light .focus-item h3,
.section--gray .focus-item h3 { color: var(--color-text); }

.section--light .focus-item p,
.section--gray .focus-item p { color: var(--color-text-muted); }

/* About preview on light bg */
.section--light .stat-card,
.section--gray .stat-card {
    background: rgba(37,99,235,0.04);
    border-color: rgba(37,99,235,0.15);
}

.section--light .stat-value,
.section--gray .stat-value { color: var(--color-text); }

.section--light .stat-label,
.section--gray .stat-label { color: var(--color-text-muted); }

.section--light .about-preview-content p,
.section--gray .about-preview-content p { color: var(--color-text-muted); }

/* btn-outline on light sections */
.section--light .btn-outline,
.section--gray .btn-outline {
    color: var(--color-accent);
    border-color: var(--color-accent);
}

/* Contact form on light bg */
.section--light .contact-form-wrap,
.section--gray .contact-form-wrap {
    background: #F8FAFC;
    border-color: #C8D3DF;
    box-shadow: 0 1px 4px rgba(0,0,0,0.08);
}

.section--light .contact-form-title,
.section--gray .contact-form-title { color: var(--color-text); }

.section--light .contact-form-intro,
.section--gray .contact-form-intro { color: var(--color-text-muted); }

.section--light .form-label,
.section--gray .form-label { color: #374151; }

.section--light .form-input,
.section--gray .form-input {
    background: #fff;
    border-color: #D1D5DB;
    color: var(--color-text);
}

.section--light .form-input::placeholder,
.section--gray .form-input::placeholder { color: #9CA3AF; }

.section--light .contact-info-card,
.section--gray .contact-info-card {
    background: #F8FAFC;
    border-color: #C8D3DF;
}

.section--light .contact-info-card-title,
.section--gray .contact-info-card-title { color: var(--color-text-muted); }

.section--light .contact-info-card-text,
.section--gray .contact-info-card-text { color: var(--color-text-muted); }

.section--light .contact-prefer-email,
.section--gray .contact-prefer-email { border-color: var(--color-border-light); }

.section--light .contact-prefer-label,
.section--gray .contact-prefer-label { color: var(--color-text-muted); }

/* Section separators between adjacent light sections */
.section--light + .section--gray,
.section--gray + .section--light { border-top: 1px solid #E2E8F0; }

/* --- Who We Work With ------------------------------------- */
.who-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 5rem;
    align-items: center;
}

.who-list {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.who-list li {
    display: flex;
    align-items: center;
    gap: 1rem;
    font-size: 1.0625rem;
    color: #CBD5E1;
    padding: 1rem 1.25rem;
    background: rgba(255,255,255,0.04);
    border: 1px solid rgba(255,255,255,0.07);
    border-radius: var(--card-radius);
    transition: border-color 0.2s, background 0.2s;
}

.who-list li:hover {
    border-color: rgba(37,99,235,0.25);
    background: rgba(255,255,255,0.06);
}

.who-list li::before {
    content: '';
    width: 7px;
    height: 7px;
    background: var(--color-green);
    border-radius: 50%;
    flex-shrink: 0;
}

/* --- Typical Engagements ---------------------------------- */
.engagements-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 0.875rem;
    margin-top: 2.5rem;
}

.engagement-item {
    display: flex;
    align-items: center;
    gap: 0.625rem;
    padding: 0.875rem 1.375rem;
    background: #F8FAFC;
    border: 1px solid #C8D3DF;
    border-radius: var(--card-radius);
    font-size: 0.9375rem;
    font-weight: 500;
    color: var(--color-text);
    transition: border-color 0.2s, box-shadow 0.2s;
}

.engagement-item:hover {
    border-color: rgba(37,99,235,0.3);
    box-shadow: 0 2px 8px rgba(0,0,0,0.07);
}

.engagement-item::before {
    content: '';
    width: 6px;
    height: 6px;
    background: var(--color-accent);
    border-radius: 50%;
    flex-shrink: 0;
}

/* --- Responsive ------------------------------------------- */
@media (max-width: 768px) {
    .nav-toggle { display: flex; }

    .nav-menu {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        flex-direction: column;
        align-items: stretch;
        background: rgba(15, 23, 42, 0.99);
        border-bottom: 1px solid rgba(255,255,255,0.07);
        padding: 1rem 1.5rem 1.5rem;
        gap: 0.25rem;
    }

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

    .nav-link { padding: 0.75rem 1rem; }
    .nav-link-cta { text-align: center; margin-left: 0; margin-top: 0.5rem; }

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

    .section { padding-block: 3.5rem; }

    .about-preview {
        grid-template-columns: 1fr;
        gap: 2.5rem;
    }

    .about-preview-stat-group {
        flex-direction: row;
        flex-wrap: wrap;
        min-width: unset;
    }

    .stat-card { flex: 1 1 140px; }

    .hero { padding: 5rem 0 4rem; }

    .service-layout,
    .service-layout--reverse {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }

    .expertise-section-layout {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .about-overview {
        grid-template-columns: 1fr;
        gap: 3rem;
    }

    .founder-layout {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .founder-avatar {
        width: 90px;
        height: 90px;
    }

    .contact-layout {
        grid-template-columns: 1fr;
        gap: 2.5rem;
        max-width: 100%;
    }

    .contact-info { position: static; }

    .form-row--two {
        grid-template-columns: 1fr;
    }

    .who-layout {
        grid-template-columns: 1fr;
        gap: 2.5rem;
    }
}

@media (max-width: 480px) {
    .btn-group { flex-direction: column; align-items: flex-start; }
    .btn { width: 100%; justify-content: center; }
    .hero-sub { font-size: 1.0625rem; }
}