:root {
    --bg: #f5f7fb;
    --surface: #ffffff;
    --ink: #162033;
    --muted: #647186;
    --line: #dce4ef;
    --teal: #0f766e;
    --teal-dark: #115e59;
    --blue: #2563eb;
    --coral: #e85d4f;
    --amber: #d99a28;
    --green: #16a34a;
    --shadow: 0 24px 70px rgba(22, 32, 51, 0.14);
}

* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    min-height: 100vh;
    color: var(--ink);
    background: var(--bg);
    font-family: "Inter", Arial, sans-serif;
    overflow-x: hidden;
}

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

h1,
h2,
h3,
p {
    margin-top: 0;
}

.site-header {
    position: fixed;
    top: 0;
    left: 50%;
    z-index: 30;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
    width: min(1180px, calc(100% - 36px));
    padding: 18px 0;
    transform: translateX(-50%);
    transition: top 0.2s ease, padding 0.2s ease, background 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
}

.brand {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    min-width: 0;
    color: #ffffff;
    transition: color 0.2s ease;
}

.brand-mark {
    display: grid;
    width: 44px;
    height: 44px;
    place-items: center;
    flex: 0 0 auto;
    border: 1px solid rgba(255, 255, 255, 0.34);
    border-radius: 8px;
    background: rgba(255, 255, 255, 0.16);
    font-size: 0.86rem;
    font-weight: 900;
    backdrop-filter: blur(16px);
    transition: color 0.2s ease, background 0.2s ease, border-color 0.2s ease;
}

.brand strong,
.brand small {
    display: block;
}

.brand strong {
    font-size: 0.98rem;
    line-height: 1.1;
}

.brand small {
    margin-top: 3px;
    color: rgba(255, 255, 255, 0.78);
    font-size: 0.76rem;
    transition: color 0.2s ease;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 6px;
    border: 1px solid rgba(255, 255, 255, 0.28);
    border-radius: 8px;
    background: rgba(255, 255, 255, 0.14);
    backdrop-filter: blur(16px);
    transition: background 0.2s ease, border-color 0.2s ease;
}

.nav-links a {
    min-width: 0;
    padding: 9px 16px;
    border-radius: 6px;
    color: rgba(255, 255, 255, 0.86);
    font-size: 0.9rem;
    font-weight: 800;
    transition: color 0.2s ease, background 0.2s ease;
}

.nav-links a:hover {
    color: #ffffff;
    background: rgba(255, 255, 255, 0.14);
}

.site-header.is-scrolled {
    top: 14px;
    padding: 10px 12px;
    border: 1px solid rgba(220, 228, 239, 0.94);
    border-radius: 8px;
    background: rgba(255, 255, 255, 0.94);
    box-shadow: 0 16px 42px rgba(22, 32, 51, 0.12);
    backdrop-filter: blur(18px);
}

.site-header.is-scrolled .brand {
    color: var(--ink);
}

.site-header.is-scrolled .brand-mark {
    color: #ffffff;
    border-color: transparent;
    background: linear-gradient(145deg, var(--teal), var(--blue));
}

.site-header.is-scrolled .brand small {
    color: var(--muted);
}

.site-header.is-scrolled .nav-links {
    border-color: var(--line);
    background: #f3f6fa;
}

.site-header.is-scrolled .nav-links a {
    color: #526175;
}

.site-header.is-scrolled .nav-links a:hover {
    color: var(--ink);
    background: #e7edf5;
}

main {
    overflow: hidden;
}

.hero-section {
    position: relative;
    display: flex;
    align-items: center;
    min-height: 88vh;
    padding: 112px max(18px, calc((100vw - 1180px) / 2)) 92px;
    color: #ffffff;
}

.hero-bg,
.hero-overlay {
    position: absolute;
    inset: 0;
}

.hero-bg {
    background-image: url("assets/webgis-hero.png");
    background-position: center;
    background-size: cover;
}

.hero-overlay {
    background:
        linear-gradient(90deg, rgba(8, 16, 32, 0.88) 0%, rgba(8, 16, 32, 0.68) 44%, rgba(8, 16, 32, 0.2) 100%),
        linear-gradient(180deg, rgba(8, 16, 32, 0.24), rgba(8, 16, 32, 0.54));
}

.hero-content {
    position: relative;
    z-index: 2;
    width: min(760px, 100%);
}

.eyebrow {
    margin: 0 0 14px;
    color: #35d0ba;
    font-size: 0.76rem;
    font-weight: 900;
    letter-spacing: 0;
    text-transform: uppercase;
}

h1 {
    max-width: 820px;
    margin-bottom: 22px;
    font-size: clamp(2.75rem, 6vw, 5.7rem);
    line-height: 0.98;
    letter-spacing: 0;
}

.hero-lead {
    max-width: 680px;
    margin-bottom: 30px;
    color: rgba(255, 255, 255, 0.82);
    font-size: 1.08rem;
    line-height: 1.75;
}

.project-links {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    min-height: 46px;
    padding: 12px 18px;
    border: 1px solid transparent;
    border-radius: 8px;
    font-size: 0.93rem;
    font-weight: 900;
    transition: transform 0.18s ease, box-shadow 0.18s ease, background 0.18s ease;
}

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

.btn-primary {
    color: #ffffff;
    background: var(--teal);
    box-shadow: 0 16px 34px rgba(15, 118, 110, 0.28);
}

.btn-primary:hover {
    background: var(--teal-dark);
}

.btn-secondary {
    color: #ffffff;
    border-color: rgba(255, 255, 255, 0.34);
    background: rgba(255, 255, 255, 0.14);
    backdrop-filter: blur(12px);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.22);
}

.btn-ghost {
    color: var(--teal-dark);
    border-color: rgba(15, 118, 110, 0.22);
    background: rgba(15, 118, 110, 0.08);
}

.btn-ghost:hover {
    box-shadow: 0 12px 24px rgba(22, 32, 51, 0.09);
}

.projects-section {
    width: min(1120px, calc(100% - 36px));
    margin: 0 auto;
    padding: 132px 0 70px;
    scroll-margin-top: 0;
}

.section-heading {
    max-width: 620px;
    margin-bottom: 24px;
}

.section-heading .eyebrow {
    margin-bottom: 10px;
    color: var(--teal);
}

.section-heading h2 {
    margin-bottom: 12px;
    font-size: clamp(1.8rem, 3vw, 2.7rem);
    line-height: 1.08;
    letter-spacing: 0;
}

.section-heading p,
.project-card p {
    color: var(--muted);
    line-height: 1.58;
}

.project-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 20px;
}

.project-card {
    overflow: hidden;
    border: 1px solid rgba(220, 228, 239, 0.94);
    border-radius: 8px;
    background: var(--surface);
    box-shadow: var(--shadow);
}

.project-visual {
    height: 180px;
    padding: 16px;
    border-bottom: 1px solid var(--line);
    background:
        linear-gradient(135deg, rgba(15, 118, 110, 0.12), rgba(37, 99, 235, 0.06)),
        #edf4f7;
}

.project-two .project-visual {
    background:
        linear-gradient(135deg, rgba(232, 93, 79, 0.13), rgba(217, 154, 40, 0.11)),
        #f8f3ec;
}

.mini-map,
.dashboard-mock {
    position: relative;
    width: 100%;
    height: 100%;
    overflow: hidden;
    border: 1px solid rgba(255, 255, 255, 0.72);
    border-radius: 8px;
    background:
        linear-gradient(90deg, rgba(255, 255, 255, 0.42) 1px, transparent 1px),
        linear-gradient(rgba(255, 255, 255, 0.42) 1px, transparent 1px),
        linear-gradient(135deg, #cfe9e5, #dfeaff 58%, #f4f7fb);
    background-size: 36px 36px, 36px 36px, auto;
    box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.6);
}

.route {
    position: absolute;
    height: 8px;
    border-radius: 999px;
    background: rgba(37, 99, 235, 0.76);
    transform-origin: left center;
}

.route-a {
    top: 56px;
    left: 22px;
    width: 72%;
    transform: rotate(9deg);
}

.route-b {
    top: 145px;
    left: 18px;
    width: 86%;
    background: rgba(15, 118, 110, 0.78);
    transform: rotate(-11deg);
}

.route-c {
    right: 34px;
    bottom: 46px;
    width: 50%;
    background: rgba(232, 93, 79, 0.74);
    transform: rotate(19deg);
}

.pin,
.help-pin {
    position: absolute;
    width: 24px;
    height: 24px;
    border: 4px solid #ffffff;
    border-radius: 50% 50% 50% 0;
    box-shadow: 0 10px 22px rgba(22, 32, 51, 0.22);
    transform: rotate(-45deg);
}

.pin::after,
.help-pin::after {
    content: "";
    position: absolute;
    inset: 5px;
    border-radius: 50%;
    background: #ffffff;
}

.pin-red {
    top: 70px;
    left: 34%;
    background: var(--coral);
}

.pin-blue {
    right: 20%;
    bottom: 70px;
    background: var(--blue);
}

.parcel {
    position: absolute;
    border: 2px solid rgba(217, 154, 40, 0.88);
    background: rgba(217, 154, 40, 0.18);
    transform: rotate(-8deg);
}

.parcel-one {
    right: 36px;
    top: 34px;
    width: 96px;
    height: 64px;
}

.parcel-two {
    left: 44px;
    bottom: 32px;
    width: 130px;
    height: 74px;
}

.dashboard-mock {
    background: linear-gradient(135deg, #ffffff, #f3f6fa);
}

.dash-line {
    position: absolute;
    left: 24px;
    top: 28px;
    width: 160px;
    height: 12px;
    border-radius: 999px;
    background: #d8e1ec;
}

.dash-line.wide {
    top: 54px;
    width: 245px;
}

.dash-card {
    position: absolute;
    top: 94px;
    width: 28%;
    height: 64px;
    border-radius: 8px;
}

.dash-card.green {
    left: 24px;
    background: rgba(22, 163, 74, 0.2);
    border: 1px solid rgba(22, 163, 74, 0.32);
}

.dash-card.amber {
    left: 36%;
    background: rgba(217, 154, 40, 0.22);
    border: 1px solid rgba(217, 154, 40, 0.34);
}

.dash-card.red {
    right: 24px;
    background: rgba(232, 93, 79, 0.2);
    border: 1px solid rgba(232, 93, 79, 0.3);
}

.radius-ring {
    position: absolute;
    right: 72px;
    bottom: 28px;
    width: 124px;
    height: 124px;
    border: 3px solid rgba(37, 99, 235, 0.55);
    border-radius: 50%;
    background: rgba(37, 99, 235, 0.08);
}

.help-pin {
    right: 124px;
    bottom: 78px;
    background: var(--teal);
}

.project-content {
    padding: 20px;
}

.project-kicker {
    display: inline-flex;
    margin-bottom: 12px;
    color: var(--teal);
    font-size: 0.78rem;
    font-weight: 900;
    text-transform: uppercase;
}

.project-two .project-kicker {
    color: var(--coral);
}

.project-card h3 {
    margin-bottom: 8px;
    font-size: 1.06rem;
    letter-spacing: 0;
}

.tag-list {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin: 16px 0 20px;
}

.tag-list span {
    display: inline-flex;
    padding: 7px 10px;
    border-radius: 999px;
    color: var(--muted);
    background: #eef3f8;
    font-size: 0.78rem;
    font-weight: 800;
}

@media (max-width: 980px) {
    .hero-section {
        min-height: 84vh;
    }

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

@media (max-width: 720px) {
    .site-header {
        position: absolute;
        left: 14px;
        right: 14px;
        align-items: center;
        flex-direction: row;
        width: auto;
        transform: none;
    }

    .nav-links a {
        padding-right: 12px;
        padding-left: 12px;
    }

    .hero-section {
        display: block;
        align-items: flex-start;
        min-height: 92vh;
        padding-top: 178px;
        padding-bottom: 52px;
    }

    .hero-overlay {
        background:
            linear-gradient(180deg, rgba(8, 16, 32, 0.9) 0%, rgba(8, 16, 32, 0.74) 58%, rgba(8, 16, 32, 0.5) 100%);
    }

    h1 {
        font-size: 2.45rem;
        line-height: 1.04;
    }

    .hero-lead {
        font-size: 1rem;
    }

    .project-links .btn {
        width: 100%;
    }

    .projects-section {
        width: min(100% - 28px, 1180px);
        padding: 126px 0 58px;
    }

    .project-visual {
        height: 220px;
    }

}

@media (max-width: 460px) {
    .brand-text small {
        display: none;
    }

    .hero-section {
        min-height: 94vh;
        padding-top: 168px;
    }

    .project-visual {
        height: 190px;
        padding: 14px;
    }
}
