:root {
    --blue: #1469e8;
    --blue-dark: #0f58c8;

    --navy: #07101f;
    --text: #111318;
    --muted: #505866;

    --background: #ffffff;
    --surface: #ffffff;
    --surface-soft: #f6f8fc;

    --border: #e2e6ec;

    --shadow:
        0 1px 2px rgba(7, 16, 31, 0.03),
        0 12px 32px rgba(7, 16, 31, 0.055);

    --radius: 15px;
    --container: 1240px;
}

/* =========================================================
   RESET
========================================================= */

* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;

    background:
        radial-gradient(
            circle at 50% 0%,
            rgba(20, 105, 232, 0.025),
            transparent 30rem
        ),
        var(--background);

    color: var(--text);

    font-family:
        Inter,
        ui-sans-serif,
        -apple-system,
        BlinkMacSystemFont,
        "Segoe UI",
        sans-serif;

    -webkit-font-smoothing: antialiased;
}

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

svg {
    display: block;
}

.container {
    width: min(calc(100% - 48px), var(--container));
    margin-inline: auto;
}

/* =========================================================
   HEADER
========================================================= */

.site-header {
    padding: 22px 0 12px;
}

.header-inner {
    display: flex;
    align-items: center;
    gap: 38px;
}

.brand {
    display: inline-flex;
    flex-direction: column;
    align-items: center;

    margin-right: auto;

    line-height: 1;
}

.brand-name {
    color: var(--navy);

    font-size: 27px;
    font-weight: 500;
    letter-spacing: 0.16em;
}

.brand-subtitle {
    margin-top: 6px;

    color: var(--blue);

    font-size: 8px;
    font-weight: 800;
    letter-spacing: 0.42em;
}

.main-nav {
    display: flex;
    align-items: center;
    gap: 31px;

    color: #39404a;

    font-size: 14px;
    font-weight: 600;
}

.main-nav a {
    transition:
        color 150ms ease,
        transform 150ms ease;
}

.main-nav a:hover {
    color: var(--blue);
    transform: translateY(-1px);
}

/* =========================================================
   BUTTONS
========================================================= */

.button {
    min-height: 46px;

    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 11px;

    padding: 0 19px;

    border: 1px solid transparent;
    border-radius: 9px;

    font-size: 14px;
    font-weight: 700;

    transition:
        transform 150ms ease,
        box-shadow 150ms ease,
        background 150ms ease;
}

.button svg {
    width: 17px;
    height: 17px;

    fill: none;
    stroke: currentColor;
    stroke-width: 1.8;
    stroke-linecap: round;
    stroke-linejoin: round;
}

.button:hover {
    transform: translateY(-2px);
}

.button-dark {
    background: var(--navy);
    color: #ffffff;

    box-shadow: 0 8px 22px rgba(7, 16, 31, 0.12);
}

.button-dark:hover {
    background: #111c2e;
    box-shadow: 0 12px 28px rgba(7, 16, 31, 0.17);
}

.button-light {
    background: #ffffff;
    border-color: var(--border);
    color: var(--text);
}

/* =========================================================
   SHARED ICON
========================================================= */

.icon-box {
    width: 42px;
    height: 42px;

    display: inline-flex;
    align-items: center;
    justify-content: center;

    flex: 0 0 auto;

    background: #f1f5ff;
    color: var(--blue);

    border-radius: 10px;
}

.icon-box svg {
    width: 22px;
    height: 22px;

    fill: none;
    stroke: currentColor;
    stroke-width: 1.8;
    stroke-linecap: round;
    stroke-linejoin: round;
}

/* =========================================================
   HERO
========================================================= */

.hero {
    padding: 42px 0 42px;
}

.hero-grid {
    display: grid;
    grid-template-columns: minmax(0, 1.03fr) minmax(410px, 0.97fr);

    align-items: center;

    gap: clamp(50px, 6vw, 88px);
}

.hero-content {
    max-width: 660px;
}

.eyebrow {
    margin: 0 0 24px;

    color: var(--blue);

    font-size: 12px;
    font-weight: 800;
    letter-spacing: 0.11em;
}

.hero h1 {
    margin: 0;

    color: #0b0d11;

    font-size: clamp(46px, 3.75vw, 61px);
    font-weight: 760;
    line-height: 1.035;
    letter-spacing: -0.045em;
}

.hero h1 span {
    display: block;

    margin-top: 7px;

    color: var(--blue);
}

.hero-description {
    max-width: 640px;

    margin: 22px 0 0;

    color: var(--muted);

    font-size: 16px;
    line-height: 1.65;
}

.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 13px;

    margin-top: 26px;
}

/* =========================================================
   HERO SUMMARY
========================================================= */

.hero-summary {
    padding: 30px;

    background: rgba(255, 255, 255, 0.94);

    border: 1px solid var(--border);
    border-radius: var(--radius);

    box-shadow: var(--shadow);
}

.summary-section {
    padding: 2px;
}

.summary-heading {
    display: flex;
    align-items: center;
    gap: 15px;

    margin-bottom: 15px;
}

.summary-heading h2 {
    margin: 0;

    font-size: 18px;
    font-weight: 750;
    letter-spacing: -0.02em;
}

.summary-section p {
    margin: 0;

    color: #444d5b;

    font-size: 14px;
    line-height: 1.68;
}

.summary-divider {
    height: 1px;

    margin: 26px 2px;

    background: var(--border);
}

/* =========================================================
   PRINCIPLES
========================================================= */

.principles {
    padding: 0 0 34px;
}

.principles-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
}

.principle-card {
    min-height: 230px;

    padding: 23px;

    background: var(--surface);

    border: 1px solid var(--border);
    border-radius: var(--radius);

    box-shadow: var(--shadow);
}

.principle-card h2 {
    margin: 17px 0 15px;

    color: var(--text);

    font-size: 18px;
    font-weight: 750;
    line-height: 1.15;
    letter-spacing: -0.025em;
}

.principle-card p {
    margin: 0;

    color: var(--muted);

    font-size: 14px;
    line-height: 1.65;
}

/* =========================================================
   DEPLOYED CAPABILITIES
========================================================= */

.deployed {
    padding: 0 0 52px;
}

.deployed-card {
    padding: 19px 22px;

    background: var(--surface);

    border: 1px solid var(--border);
    border-radius: var(--radius);

    box-shadow: var(--shadow);
}

.deployed-heading {
    display: flex;
    align-items: center;
    gap: 14px;

    margin-bottom: 15px;
}

.deployed-heading h2 {
    margin: 0;

    font-size: 16px;
    font-weight: 750;
    letter-spacing: -0.02em;
}

.deployed-icon {
    width: 36px;
    height: 36px;
}

.deployed-icon svg {
    width: 19px;
    height: 19px;
}

.capability-pills {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 9px;
}

.capability-pill {
    min-height: 29px;

    display: inline-flex;
    align-items: center;
    gap: 7px;

    padding: 0 11px;

    background: #f5f7fa;

    border: 1px solid #edf0f4;
    border-radius: 999px;

    color: #444c59;

    font-size: 11px;
    font-weight: 600;
}

.pill-check {
    width: 16px;
    height: 16px;

    display: inline-flex;
    align-items: center;
    justify-content: center;

    flex: 0 0 auto;

    background: var(--blue);
    color: #ffffff;

    border-radius: 50%;

    font-size: 10px;
    font-weight: 800;
}


/* =========================================================
   PROBLEMS + APPROACH
========================================================= */

.operations {
    padding: 0 0 58px;
}

.operations-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 34px;
}

.operations-column {
    min-width: 0;
}

.section-eyebrow {
    margin: 0 0 10px;

    color: var(--blue);

    font-size: 11px;
    font-weight: 800;
    letter-spacing: 0.11em;
}

.section-title {
    margin: 0 0 22px;

    color: #0b0d11;

    font-size: clamp(31px, 2.5vw, 40px);
    font-weight: 760;
    line-height: 1.04;
    letter-spacing: -0.04em;
}


/* =========================================================
   PROBLEM LIST
========================================================= */

.problem-list {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.problem-item {
    min-height: 64px;

    display: flex;
    align-items: center;
    gap: 16px;

    padding: 11px 16px;

    background: var(--surface-soft);

    border: 1px solid #f0f2f5;
    border-radius: 10px;

    color: #444c59;

    font-size: 13px;
    font-weight: 500;
    line-height: 1.4;
}


/* =========================================================
   APPROACH LIST
========================================================= */

.approach-list {
    padding: 11px;

    background:
        linear-gradient(
            135deg,
            rgba(20, 105, 232, 0.035),
            rgba(7, 16, 31, 0.025)
        );

    border-radius: 14px;
}

.approach-item {
    min-height: 82px;

    display: flex;
    align-items: center;
    gap: 16px;

    padding: 13px 16px;

    background: #ffffff;

    border: 1px solid #edf0f4;
    border-radius: 10px;
}

.approach-item + .approach-item {
    margin-top: 8px;
}

.approach-item h3 {
    margin: 0 0 4px;

    color: var(--text);

    font-size: 15px;
    font-weight: 750;
    letter-spacing: -0.015em;
}

.approach-item p {
    margin: 0;

    color: var(--muted);

    font-size: 12px;
    line-height: 1.45;
}


/* =========================================================
   LIST ICONS
========================================================= */

.list-icon {
    width: 39px;
    height: 39px;

    display: inline-flex;
    align-items: center;
    justify-content: center;

    flex: 0 0 auto;

    background: #ffffff;
    color: var(--blue);

    border-radius: 9px;

    box-shadow: 0 3px 12px rgba(7, 16, 31, 0.035);
}

.approach-item .list-icon {
    background: #f3f6ff;
}

.list-icon svg {
    width: 21px;
    height: 21px;

    fill: none;
    stroke: currentColor;
    stroke-width: 1.8;
    stroke-linecap: round;
    stroke-linejoin: round;
}

/* =========================================================
   FAQ
========================================================= */

.faq {
    padding: 4px 0 58px;
}

.faq-title {
    margin-bottom: 20px;
}

.faq-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 14px;
}

.faq-card {
    min-height: 166px;

    display: flex;
    align-items: flex-start;
    gap: 17px;

    padding: 22px;

    background: var(--surface);

    border: 1px solid var(--border);
    border-radius: var(--radius);

    box-shadow: var(--shadow);
}

.faq-card h3 {
    margin: 3px 0 11px;

    color: var(--text);

    font-size: 15px;
    font-weight: 750;
    line-height: 1.3;
    letter-spacing: -0.015em;
}

.faq-card p {
    margin: 0;

    color: var(--muted);

    font-size: 13px;
    line-height: 1.6;
}


/* =========================================================
   TEAM
========================================================= */

.team {
    padding: 0 0 58px;
}

.team-title {
    margin-bottom: 20px;
}

.team-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 16px;
}

.team-card {
    display: flex;
    align-items: flex-start;
    gap: 20px;

    min-height: 235px;

    padding: 22px;

    background: var(--surface);

    border: 1px solid var(--border);
    border-radius: var(--radius);

    box-shadow: var(--shadow);
}

.team-photo {
    width: 105px;
    height: 105px;

    flex: 0 0 105px;

    object-fit: cover;
    object-position: center;

    border-radius: 50%;

    border: 1px solid var(--border);
}

.team-content {
    min-width: 0;
}

.team-content h3 {
    margin: 4px 0 5px;

    color: var(--text);

    font-size: 17px;
    font-weight: 760;
    line-height: 1.2;
    letter-spacing: -0.02em;
}

.team-role {
    margin: 0 0 15px;

    color: var(--blue);

    font-size: 10px;
    font-weight: 800;
    line-height: 1.4;
    letter-spacing: 0.08em;
}

.team-bio {
    margin: 0;

    color: var(--muted);

    font-size: 12px;
    line-height: 1.65;
}

/* =========================================================
   CONTACT CTA
========================================================= */

.contact-cta {
    padding: 0 0 64px;
}

.contact-cta-panel {
    position: relative;
    overflow: hidden;

    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 50px;

    min-height: 190px;

    padding: 34px 38px;

    color: #ffffff;

    background:
        radial-gradient(
            circle at 82% 130%,
            rgba(30, 112, 255, 0.18),
            transparent 38%
        ),
        linear-gradient(
            115deg,
            #07111f 0%,
            #081523 55%,
            #07101c 100%
        );

    border-radius: 14px;

    box-shadow: 0 18px 50px rgba(7, 17, 31, 0.16);
}

/* subtle technical lines */

.contact-cta-panel::before,
.contact-cta-panel::after {
    content: "";

    position: absolute;

    width: 620px;
    height: 1px;

    right: -80px;
    bottom: 32px;

    background: linear-gradient(
        90deg,
        transparent,
        rgba(30, 112, 255, 0.45),
        transparent
    );

    transform-origin: right center;
    transform: rotate(-9deg);

    pointer-events: none;
}

.contact-cta-panel::after {
    bottom: 13px;
    transform: rotate(-5deg);
    opacity: 0.55;
}

.contact-cta-content,
.contact-cta-actions {
    position: relative;
    z-index: 1;
}

.contact-cta-eyebrow {
    margin: 0 0 10px;

    color: #3987ff;

    font-size: 10px;
    font-weight: 800;
    letter-spacing: 0.11em;
}

.contact-cta-content h2 {
    margin: 0 0 12px;

    color: #ffffff;

    font-size: 30px;
    font-weight: 760;
    line-height: 1.08;
    letter-spacing: -0.035em;
}

.contact-cta-description {
    margin: 0;

    color: rgba(255, 255, 255, 0.72);

    font-size: 12px;
    line-height: 1.65;
}

.contact-cta-actions {
    display: flex;
    align-items: center;
    gap: 14px;

    flex-shrink: 0;
}

.contact-cta-primary,
.contact-cta-secondary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 9px;

    min-height: 48px;

    padding: 0 22px;

    border-radius: 8px;

    font-size: 12px;
    font-weight: 750;

    text-decoration: none;

    transition:
        transform 160ms ease,
        background 160ms ease,
        border-color 160ms ease;
}

.contact-cta-primary {
    color: #07111f;
    background: #ffffff;
    border: 1px solid #ffffff;
}

.contact-cta-secondary {
    color: #ffffff;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.42);
}

.contact-cta-primary:hover,
.contact-cta-secondary:hover {
    transform: translateY(-1px);
}

.contact-cta-secondary:hover {
    background: rgba(255, 255, 255, 0.08);
    border-color: rgba(255, 255, 255, 0.7);
}

.contact-cta-icon {
    display: flex;
    align-items: center;
    justify-content: center;

    color: var(--blue);
}

.contact-cta-icon svg,
.contact-cta-secondary svg {
    width: 16px;
    height: 16px;
}

/* =========================================================
   CONTACT FORM
========================================================= */

.contact-section {
    padding: 18px 0 72px;
}

.contact-heading {
    max-width: 650px;
    margin-bottom: 28px;
}

.contact-heading-text {
    max-width: 610px;
    margin: 10px 0 0;

    color: var(--muted);

    font-size: 14px;
    line-height: 1.7;
}

.contact-layout {
    display: grid;
    grid-template-columns: 0.8fr 1.2fr;
    gap: 24px;
    align-items: stretch;
}


/* LEFT SIDE */

.contact-info {
    padding: 32px;

    background: #f7f9fc;

    border: 1px solid var(--border);
    border-radius: var(--radius);
}

.contact-info h3 {
    margin: 0 0 10px;

    color: var(--text);

    font-size: 22px;
    line-height: 1.2;
    letter-spacing: -0.025em;
}

.contact-info > p {
    margin: 0 0 30px;

    color: var(--muted);

    font-size: 13px;
    line-height: 1.7;
}

.contact-info-item {
    display: flex;
    align-items: flex-start;
    gap: 14px;

    padding: 18px 0;

    border-top: 1px solid var(--border);
}

.contact-info-icon {
    display: flex;
    align-items: center;
    justify-content: center;

    width: 38px;
    height: 38px;

    flex: 0 0 38px;

    color: var(--blue);

    background: #ffffff;

    border: 1px solid var(--border);
    border-radius: 9px;
}

.contact-info-icon svg {
    width: 18px;
    height: 18px;
}

.contact-info-item strong {
    display: block;

    margin-bottom: 4px;

    color: var(--text);

    font-size: 13px;
}

.contact-info-item span {
    display: block;

    color: var(--muted);

    font-size: 12px;
    line-height: 1.55;
}


/* FORM */

.contact-form {
    padding: 32px;

    background: var(--surface);

    border: 1px solid var(--border);
    border-radius: var(--radius);

    box-shadow: var(--shadow);
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

.form-field {
    margin-bottom: 18px;
}

.form-field label {
    display: block;

    margin-bottom: 7px;

    color: var(--text);

    font-size: 12px;
    font-weight: 700;
}

.optional {
    color: var(--muted);

    font-weight: 500;
}

.form-field input,
.form-field select,
.form-field textarea {
    width: 100%;

    padding: 12px 13px;

    color: var(--text);

    background: #ffffff;

    border: 1px solid var(--border);
    border-radius: 7px;

    outline: none;

    font: inherit;
    font-size: 13px;

    transition:
        border-color 150ms ease,
        box-shadow 150ms ease;
}

.form-field input,
.form-field select {
    height: 44px;
}

.form-field textarea {
    min-height: 145px;

    resize: vertical;
}

.form-field input:focus,
.form-field select:focus,
.form-field textarea:focus {
    border-color: var(--blue);

    box-shadow: 0 0 0 3px rgba(30, 112, 255, 0.10);
}

.form-field textarea::placeholder {
    color: #98a2b3;
}

.form-submit {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;

    min-height: 46px;

    padding: 0 22px;

    color: #ffffff;

    background: #07111f;

    border: 0;
    border-radius: 8px;

    cursor: pointer;

    font: inherit;
    font-size: 12px;
    font-weight: 750;

    transition:
        transform 150ms ease,
        background 150ms ease;
}

.form-submit:hover {
    transform: translateY(-1px);

    background: #10233c;
}

.form-submit svg {
    width: 16px;
    height: 16px;
}

.form-note {
    margin: 12px 0 0;

    color: var(--muted);

    font-size: 11px;
}


/* =========================================================
   FOOTER
========================================================= */

.site-footer {
    border-top: 1px solid var(--border);

    background: #ffffff;
}

.footer-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 30px;

    min-height: 110px;
}

.footer-brand {
    display: flex;
    flex-direction: column;

    color: inherit;

    text-decoration: none;
}

.footer-brand-name {
    color: #07111f;

    font-size: 20px;
    font-weight: 600;
    line-height: 1;

    letter-spacing: 0.22em;
}

.footer-brand-sub {
    margin-top: 6px;

    color: var(--blue);

    font-size: 7px;
    font-weight: 800;

    letter-spacing: 0.38em;
}

.footer-copy {
    margin: 0;

    color: var(--muted);

    font-size: 11px;
}

.footer-links {
    display: flex;
    align-items: center;
    gap: 22px;
}

.footer-links a {
    color: var(--muted);

    font-size: 11px;
    font-weight: 650;

    text-decoration: none;
}

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

/* =========================================================
   FORM STATUS
========================================================= */

.form-note-success {
    color: #16803d;
    font-weight: 650;
}

.form-note-error {
    color: #c52b2b;
    font-weight: 650;
}

.form-submit:disabled {
    cursor: not-allowed;
    opacity: 0.65;
    transform: none;
}

/* =========================================================
   RESPONSIVE
========================================================= */

@media (max-width: 1000px) {

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

    .contact-layout {
        grid-template-columns: 1fr;
    }

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

    .footer-inner {
        flex-direction: column;
        align-items: flex-start;

        padding-top: 30px;
        padding-bottom: 30px;
    }

    .footer-links {
        flex-wrap: wrap;
    }

}

@media (max-width: 900px) {

    .main-nav {
        display: none;
    }

    .hero {
        padding-top: 38px;
    }

    .hero-grid {
        grid-template-columns: 1fr;
        gap: 38px;
    }

    .hero-content {
        max-width: 760px;
    }

    .hero h1 {
        max-width: 720px;
    }

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

    .contact-cta-panel {
        flex-direction: column;
        align-items: flex-start;

        padding: 30px 26px;
    }

    .contact-cta-actions {
        width: 100%;
    }

    .contact-cta-primary,
    .contact-cta-secondary {
        flex: 1;
    }

}

@media (max-width: 600px) {

    .container {
        width: min(calc(100% - 32px), var(--container));
    }

    .site-header {
        padding: 18px 0 10px;
    }

    .header-cta {
        display: none;
    }

    .brand-name {
        font-size: 24px;
    }

    .hero {
        padding: 34px 0 40px;
    }

    .hero h1 {
        font-size: 42px;
    }

    .hero-description {
        font-size: 16px;
    }

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

    .hero-actions .button {
        width: 100%;
    }

    .hero-summary {
        padding: 23px;
    }

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

    .principle-card {
        min-height: auto;
    }

}