:root {
    --bg: #f8fafc;
    --bg-alt: #edf2fb;
    --surface: #ffffff;
    --surface-alt: rgba(15, 23, 42, 0.04);
    --text: #0f172a;
    --muted: rgba(15, 23, 42, 0.7);
    --primary: #38bdf8;
    --secondary: #a855f7;
    --accent: #f97316;
    --border: rgba(15, 23, 42, 0.12);
    --max-width: 1120px;
    --radius-lg: 28px;
    --radius-md: 18px;
    --radius-sm: 12px;
    scroll-behavior: smooth;
    --slider-accent: var(--primary);
}

*,
*::before,
*::after {
    box-sizing: border-box;
}

body {
    margin: 0;
    font-family: "Inter", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    background: radial-gradient(circle at top, rgba(56, 189, 248, 0.18), transparent 55%), var(--bg);
    color: var(--text);
    line-height: 1.6;
}

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

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

.wrapper {
    width: min(100% - 48px, var(--max-width));
    margin: 0 auto;
}

header {
    position: sticky;
    top: 0;
    z-index: 20;
    backdrop-filter: blur(20px);
    background: rgba(11, 17, 33, 0.92);
    border-bottom: 1px solid rgba(148, 163, 184, 0.16);
}

.nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 18px 0;
}

.brand {
    display: flex;
    align-items: center;
    gap: 12px;
    font-weight: 700;
    font-size: 1.1rem;
    letter-spacing: 0.04em;
    color: #f8fafc;
}

.brand img {
    width: 44px;
    height: 44px;
    object-fit: contain;
    filter: drop-shadow(0 12px 24px rgba(56, 189, 248, 0.3));
}

nav ul {
    display: flex;
    gap: 28px;
    list-style: none;
    margin: 0;
    padding: 0;
}

nav a {
    font-weight: 500;
    position: relative;
    padding: 8px 0;
    color: rgba(226, 232, 240, 0.72);
    transition: color 0.2s ease;
}

nav a::after {
    content: "";
    position: absolute;
    width: 0;
    height: 2px;
    border-radius: 999px;
    background: linear-gradient(90deg, var(--primary), var(--secondary));
    left: 0;
    bottom: 0;
    transition: width 0.2s ease;
}

nav a:hover,
nav a:focus,
nav a[aria-current="page"] {
    color: #f8fafc;
}

nav a:hover::after,
nav a:focus::after,
nav a[aria-current="page"]::after {
    width: 100%;
}

.nav-toggle {
    display: none;
    width: 44px;
    height: 44px;
    border-radius: 50%;
    border: 1px solid var(--border);
    background: transparent;
    color: #f8fafc;
    font-size: 1.4rem;
    align-items: center;
    justify-content: center;
}

main {
    padding-top: 0;
}

.hero {
    display: grid;
    gap: 64px;
    align-items: center;
    padding: 80px 0 40px;
}

.hero-text h1 {
    font-size: clamp(2.75rem, 3.4vw, 4rem);
    line-height: 1.05;
    margin: 0 0 24px;
    font-weight: 900;
}

.highlight {
    background: linear-gradient(120deg, var(--primary), var(--secondary));
    -webkit-background-clip: text;
    color: transparent;
}

.hero-text .subtitle {
    font-weight: 600;
    letter-spacing: 0.24em;
    text-transform: uppercase;
    color: var(--primary);
    font-size: 0.82rem;
    margin-bottom: 24px;
}

.hero-text p {
    color: var(--muted);
    margin-bottom: 32px;
    max-width: 520px;
}

.hero-slider {
    position: relative;
    padding: clamp(72px, 10vw, 120px) 0 clamp(56px, 9vw, 110px);
    background: linear-gradient(135deg, rgba(224, 242, 254, 0.9), rgba(248, 250, 252, 0.95));
    overflow: hidden;
}

.hero-slider::after {
    content: "";
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at 85% 20%, rgba(168, 85, 247, 0.12), transparent 55%), radial-gradient(circle at 10% 90%, rgba(56, 189, 248, 0.12), transparent 60%);
    z-index: 0;
    pointer-events: none;
}

.slider-layout {
    position: relative;
    z-index: 1;
    display: grid;
    gap: 48px;
    grid-template-columns: minmax(0, 1fr) minmax(260px, 320px);
    align-items: start;
}

.slides {
    position: relative;
    min-height: 320px;
    transition: transform 0.3s ease;
    touch-action: pan-y;
    cursor: grab;
}

.slide {
    position: absolute;
    inset: 0;
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.4s ease, transform 0.4s ease;
    display: grid;
    gap: 24px;
    pointer-events: none;
}

.hero-slider.is-dragging .slides {
    transition: none;
    cursor: grabbing;
}

.slide.is-active {
    opacity: 1;
    transform: translateY(0);
    pointer-events: auto;
}

.slide h1 {
    margin: 0;
    font-size: clamp(2.4rem, 3.4vw, 3.6rem);
    line-height: 1.08;
}

.slide p {
    color: var(--muted);
    max-width: 640px;
    margin: 0 0 8px;
}

.slider-insights {
    display: grid;
    gap: 18px;
}

.slider-controls {
    margin-top: 36px;
    display: flex;
    align-items: center;
    gap: 18px;
    justify-content: center;
    z-index: 1;
}

.slider-nav {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    border: 1px solid rgba(15, 23, 42, 0.12);
    background: #ffffff;
    color: var(--text);
    font-size: 1.5rem;
    display: grid;
    place-items: center;
    transition: border-color 0.2s ease, color 0.2s ease, transform 0.2s ease;
}

.slider-nav:hover,
.slider-nav:focus {
    border-color: var(--slider-accent);
    color: var(--slider-accent);
    transform: translateY(-2px);
}

.slider-dots {
    display: flex;
    gap: 12px;
}

.slider-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    border: none;
    background: rgba(15, 23, 42, 0.15);
    transition: transform 0.2s ease, background 0.2s ease;
    cursor: pointer;
}

.slider-dot.is-active {
    background: var(--slider-accent);
    transform: scale(1.15);
}

.vision-mission {
    padding: 88px 0;
}

.vm-grid {
    display: grid;
    gap: 24px;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
}

.vm-card {
    border-radius: var(--radius-md);
    padding: 30px;
    background: var(--surface-alt);
    border: 1px solid var(--border);
    display: grid;
    gap: 16px;
}

.vm-card h3 {
    margin: 0;
    font-size: 1.4rem;
}

.vm-card p {
    margin: 0;
    color: var(--muted);
}

.vm-card ul {
    list-style: none;
    margin: 0;
    padding: 0;
    display: grid;
    gap: 10px;
    color: var(--muted);
}

.strategic-focus {
    padding: 88px 0;
    background: rgba(255, 255, 255, 0.02);
}

.focus-grid {
    display: grid;
    gap: 24px;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
}

.highlight-card {
    background: var(--surface);
    border: 1px solid var(--border);
    box-shadow: 0 18px 38px rgba(15, 23, 42, 0.07);
    min-height: 220px;
}

.text-link {
    color: var(--slider-accent);
    font-weight: 600;
    text-decoration: none;
}

.text-link:hover,
.text-link:focus {
    text-decoration: underline;
}

.cta-group {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 14px 22px;
    border-radius: var(--radius-sm);
    border: 1px solid transparent;
    font-weight: 600;
    transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: #0b1121;
}

.btn-outline {
    border-color: var(--border);
    color: var(--text);
    background: transparent;
}

.btn:hover,
.btn:focus {
    transform: translateY(-2px);
    box-shadow: 0 18px 38px rgba(56, 189, 248, 0.22);
}

.hero-media {
    position: relative;
    justify-self: center;
}

.hero-media::before {
    content: "";
    position: absolute;
    inset: -6%;
    background: linear-gradient(160deg, rgba(56, 189, 248, 0.4), rgba(168, 85, 247, 0.1));
    filter: blur(60px);
    z-index: -2;
}

.hero-card {
    position: relative;
    overflow: hidden;
    border-radius: var(--radius-lg);
    border: 1px solid rgba(56, 189, 248, 0.25);
    background:
        linear-gradient(145deg, rgba(15, 23, 42, 0.7), rgba(15, 23, 42, 0.45)),
        url("../images/banner/photo.jpg") center/cover no-repeat;
    width: min(100%, 420px);
    aspect-ratio: 4/5;
}

.hero-card::after {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(15, 23, 42, 0.55), transparent 35%);
}

.hero-card-content {
    position: absolute;
    bottom: 18px;
    left: 18px;
    right: 18px;
    padding: 18px 20px;
    border-radius: var(--radius-sm);
    border: 1px solid rgba(15, 23, 42, 0.12);
    background: rgba(255, 255, 255, 0.92);
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.hero-card-content span {
    font-size: 0.75rem;
    letter-spacing: 0.16em;
    text-transform: uppercase;
    color: rgba(15, 23, 42, 0.6);
}

.hero-card-content strong {
    font-size: 1.05rem;
}

section {
    padding: 90px 0;
}

section:nth-of-type(even) {
    background: #f1f5f9;
}

.contact-process {
    background: #ffffff;
}

.section-heading {
    display: grid;
    gap: 16px;
    margin-bottom: 48px;
    max-width: 640px;
}

.section-heading h2 {
    margin: 0;
    font-size: clamp(2rem, 2.6vw, 2.75rem);
    letter-spacing: -0.01em;
}

.section-heading p {
    color: var(--muted);
    margin: 0;
}

.metrics {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
    gap: 18px;
    margin-top: 32px;
}

.metric-card {
    border-radius: var(--radius-md);
    border: 1px solid rgba(56, 189, 248, 0.16);
    padding: 24px;
    background: var(--surface);
    box-shadow: 0 16px 32px rgba(15, 23, 42, 0.08);
}

.metric-card strong {
    display: block;
    font-size: 2rem;
    font-weight: 700;
}

.pill {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 14px;
    border-radius: 999px;
    background: rgba(56, 189, 248, 0.16);
    font-size: 0.86rem;
    color: var(--text);
}

.pill::before {
    content: "";
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
}

.about-grid {
    display: grid;
    gap: 32px;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
}

.card {
    border-radius: var(--radius-md);
    padding: 28px;
    background: var(--surface-alt);
    border: 1px solid var(--border);
    display: grid;
    gap: 16px;
}

.card h3 {
    margin: 0 0 6px;
    font-size: 1.35rem;
}

.card p {
    margin: 0;
    color: rgba(15, 23, 42, 0.65);
}

.card ul {
    list-style: none;
    padding: 0;
    margin: 0;
    display: grid;
    gap: 12px;
}

.card li {
    color: rgba(15, 23, 42, 0.65);
    display: flex;
    gap: 12px;
    align-items: center;
}

.card li span {
    font-weight: 600;
    color: var(--text);
    min-width: 120px;
}

.service-grid {
    display: grid;
    gap: 24px;
}

@media (min-width: 768px) {
    .service-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

.service-card {
    position: relative;
    border-radius: var(--radius-md);
    padding: 30px 28px;
    border: 1px solid var(--border);
    background: var(--surface);
    box-shadow: 0 24px 48px rgba(15, 23, 42, 0.08);
    transition: transform 0.25s ease, border-color 0.25s ease, box-shadow 0.25s ease;
    display: grid;
    gap: 18px;
}

.service-card:hover,
.service-card:focus-within {
    transform: translateY(-8px);
    border-color: rgba(56, 189, 248, 0.3);
    box-shadow: 0 28px 54px rgba(15, 23, 42, 0.12);
}

.service-card h3 {
    margin: 0;
    font-size: 1.4rem;
}

.service-card p {
    margin: 0;
    color: var(--muted);
}

.badge {
    font-size: 0.72rem;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: rgba(15, 23, 42, 0.5);
}

.service-features {
    display: grid;
    gap: 8px;
}

.service-features li {
    list-style: none;
    color: var(--muted);
    font-size: 0.92rem;
}

.service-features li::before {
    content: "▹";
    margin-right: 8px;
    color: var(--primary);
}

.case-grid {
    display: grid;
    gap: 20px;
}

.case-card {
    display: grid;
    gap: 12px;
    padding: 26px 28px;
    border-radius: var(--radius-md);
    border: 1px solid rgba(15, 23, 42, 0.08);
    background: var(--surface);
    box-shadow: 0 20px 36px rgba(15, 23, 42, 0.08);
}

.case-card header {
    display: grid;
    gap: 6px;
}

.case-card strong {
    font-size: 1.15rem;
    color: var(--text);
}

.case-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    color: rgba(15, 23, 42, 0.55);
    font-size: 0.92rem;
}

.tag-row {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.tag {
    padding: 6px 12px;
    background: rgba(56, 189, 248, 0.18);
    border-radius: 999px;
    font-size: 0.82rem;
    color: var(--text);
}

.cta-banner {
    margin-top: 52px;
    border-radius: var(--radius-lg);
    padding: clamp(32px, 5vw, 48px);
    background: linear-gradient(130deg, rgba(56, 189, 248, 0.2), rgba(168, 85, 247, 0.16), rgba(255, 255, 255, 0.9));
    border: 1px solid rgba(56, 189, 248, 0.24);
    display: grid;
    gap: 18px;
}

.cta-banner h3 {
    margin: 0;
    font-size: 2rem;
}

.cta-banner p {
    margin: 0 0 18px;
    color: var(--muted);
    max-width: 560px;
}

.contact-grid {
    display: grid;
    gap: 24px;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

.contact-card {
    padding: 24px;
    border-radius: var(--radius-md);
    border: 1px solid rgba(56, 189, 248, 0.18);
    background: var(--surface);
    box-shadow: 0 18px 38px rgba(15, 23, 42, 0.08);
    display: grid;
    gap: 16px;
}

.contact-card h3 {
    margin: 0;
}

.contact-card a {
    color: var(--text);
    font-weight: 600;
}

.contact-details {
    list-style: none;
    display: grid;
    gap: 12px;
    padding: 0;
    margin: 0;
}

.contact-details li {
    display: grid;
    grid-template-columns: auto 1fr;
    gap: 12px;
    align-items: center;
    padding: 14px 16px;
    border-radius: var(--radius-sm);
    background: rgba(15, 23, 42, 0.05);
    border: 1px solid rgba(15, 23, 42, 0.08);
}

.contact-icon {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    display: grid;
    place-items: center;
    background: rgba(56, 189, 248, 0.16);
    color: var(--primary);
}

.contact-icon svg {
    width: 20px;
    height: 20px;
    fill: currentColor;
}

.contact-info span {
    display: block;
    font-size: 0.78rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: rgba(15, 23, 42, 0.6);
}

.contact-info a,
.contact-info p {
    margin: 2px 0 0;
    font-weight: 600;
    color: var(--text);
}

.contact-info p {
    font-size: 0.95rem;
}

.contact-map {
    border-radius: var(--radius-md);
    overflow: hidden;
    border: 1px solid rgba(56, 189, 248, 0.18);
    box-shadow: 0 12px 32px rgba(15, 23, 42, 0.12);
}

.contact-map iframe {
    width: 100%;
    height: 200px;
    border: 0;
    display: block;
}

.social {
    display: flex;
    gap: 12px;
}

.social a {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    border: 1px solid rgba(148, 163, 184, 0.3);
    display: grid;
    place-items: center;
    color: var(--text);
    background: rgba(255, 255, 255, 0.8);
    transition: transform 0.2s ease, border-color 0.2s ease, color 0.2s ease, background 0.2s ease;
}

.social a:hover,
.social a:focus {
    transform: translateY(-2px);
    border-color: var(--primary);
    color: var(--primary);
    background: rgba(56, 189, 248, 0.16);
}

form {
    display: grid;
    gap: 18px;
}

label {
    display: grid;
    gap: 8px;
    font-weight: 600;
    color: rgba(15, 23, 42, 0.75);
}

input,
textarea {
    width: 100%;
    padding: 15px 16px;
    border-radius: var(--radius-sm);
    border: 1px solid rgba(148, 163, 184, 0.25);
    background: #ffffff;
    color: var(--text);
    font: inherit;
    transition: border-color 0.2s ease, background 0.2s ease;
}

input:focus,
textarea:focus {
    outline: none;
    border-color: rgba(56, 189, 248, 0.7);
    background: #f8fbff;
}

textarea {
    min-height: 140px;
    resize: vertical;
}

footer {
    padding: 72px 0 36px;
    border-top: 1px solid rgba(148, 163, 184, 0.18);
    background:
        radial-gradient(120% 160% at 50% 100%, rgba(56, 189, 248, 0.24), transparent 45%),
        #0b1121;
    color: rgba(241, 245, 249, 0.92);
}

.footer-inner {
    display: grid;
    gap: 44px;
}

.footer-grid {
    display: grid;
    gap: 32px;
}

@media (min-width: 768px) {
    .footer-grid {
        grid-template-columns: repeat(3, minmax(0, 1fr));
    }
}

.footer-column {
    display: grid;
    gap: 18px;
}

.footer-column h4 {
    margin: 0;
    font-size: 1.2rem;
    color: #f8fafc;
}

.footer-column p {
    margin: 0;
    color: rgba(226, 232, 240, 0.78);
}

.footer-inner .brand {
    color: #f8fafc;
}

.footer-tagline {
    margin: 12px 0 0;
    color: rgba(226, 232, 240, 0.72);
    max-width: 320px;
}

.footer-social {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
}

.footer-social a {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 16px;
    border-radius: 999px;
    border: 1px solid rgba(148, 163, 184, 0.24);
    background: rgba(148, 163, 184, 0.12);
    color: rgba(241, 245, 249, 0.92);
    font-size: 0.88rem;
    font-weight: 600;
    transition: transform 0.2s ease, border-color 0.2s ease, background 0.2s ease;
}

.footer-social a:hover,
.footer-social a:focus {
    transform: translateY(-2px);
    border-color: var(--primary);
    background: rgba(56, 189, 248, 0.22);
}

.footer-bottom {
    display: flex;
    flex-direction: column;
    gap: 16px;
    border-top: 1px solid rgba(148, 163, 184, 0.18);
    padding-top: 24px;
    color: rgba(226, 232, 240, 0.78);
}

.footer-bottom p {
    margin: 0;
}

.footer-contact {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
}

.footer-contact a {
    color: rgba(241, 245, 249, 0.92);
    font-weight: 600;
}

@media (min-width: 768px) {
    .footer-bottom {
        flex-direction: row;
        justify-content: space-between;
        align-items: center;
    }
}

.back-to-top {
    position: fixed;
    bottom: 28px;
    right: 28px;
    width: 48px;
    height: 48px;
    border-radius: 50%;
    display: grid;
    place-items: center;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: #0b1121;
    font-weight: 700;
    font-size: 1.1rem;
    border: none;
    cursor: pointer;
    box-shadow: 0 12px 28px rgba(56, 189, 248, 0.3);
}

.back-to-top-hidden {
    opacity: 0;
    pointer-events: none;
}

.testimonial-grid {
    display: grid;
    gap: 24px;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

.testimonial-card {
    padding: 26px;
    border-radius: var(--radius-md);
    border: 1px solid var(--border);
    background: var(--surface);
    box-shadow: 0 20px 40px rgba(15, 23, 42, 0.08);
    display: grid;
    gap: 14px;
}

.testimonial-card p {
    margin: 0;
    color: var(--muted);
}

.testimonial-card span {
    font-size: 0.9rem;
    color: var(--muted);
}

.hero-list {
    display: grid;
    gap: 14px;
    margin-top: 24px;
    padding: 0;
    list-style: none;
}

.hero-list li {
    display: flex;
    gap: 10px;
    align-items: flex-start;
    color: var(--muted);
}

.hero-list li::before {
    content: "✦";
    color: var(--primary);
    font-size: 1rem;
    line-height: 1.2;
}

.content-block {
    display: grid;
    gap: 20px;
    color: var(--muted);
}

.content-block h3 {
    margin: 0;
}

@media (max-width: 960px) {
    nav ul {
        position: fixed;
        inset: 80px 24px auto 24px;
        padding: 24px;
        border-radius: var(--radius-md);
        background: rgba(15, 23, 42, 0.7);
        border: 1px solid rgba(56, 189, 248, 0.2);
        flex-direction: column;
        gap: 18px;
        transform: translateY(-20px);
        opacity: 0;
        pointer-events: none;
        transition: opacity 0.25s ease, transform 0.25s ease;
    }

    nav ul[data-open="true"] {
        transform: translateY(0);
        opacity: 1;
        pointer-events: auto;
    }

    .nav-toggle {
        display: inline-flex;
    }

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

    .slider-insights {
        grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    }
}

@media (max-width: 768px) {
    .hero {
        gap: 48px;
        padding-top: 48px;
    }

    .hero-card {
        width: 320px;
    }

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

    section {
        padding: 72px 0;
    }

    .hero-slider {
        padding: 72px 0;
    }
}

@media (max-width: 520px) {
    body {
        background: var(--bg);
    }

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

    .hero {
        padding: 64px 0 40px;
    }

    .back-to-top {
        right: 20px;
        bottom: 20px;
    }

    .slider-controls {
        gap: 12px;
    }

    .slider-nav {
        display: none;
    }
}