:root {
    --color-bg-dark: #050505;
    --color-bg-light: #0b121f;
    --color-panel: rgba(11, 18, 31, 0.88);
    --color-brand: #ff6b0a;
    --color-brand-alt: #f7d347;
    --color-accent: #1e3ee4;
    --color-text: #f5f5f5;
    --color-muted: #a3adc9;
    --max-width: 1200px;
    --shadow-soft: 0 20px 40px rgba(0, 0, 0, 0.45);
    --card-radius: 18px;
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    font-family: 'Roboto', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background-color: var(--color-bg-dark);
    color: var(--color-text);
    line-height: 1.6;
}

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

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

a:hover,
a:focus {
    color: var(--color-brand-alt);
}

.visually-hidden {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

.container {
    width: min(90%, var(--max-width));
    margin: 0 auto;
}

.eyebrow {
    letter-spacing: 2px;
    text-transform: uppercase;
    font-weight: 600;
    font-family: 'Kanit', sans-serif;
    color: var(--color-brand-alt);
    margin-bottom: 0.25rem;
}

h1,
h2,
h3,
h4 {
    font-family: 'Kanit', sans-serif;
    letter-spacing: 0.03em;
    margin: 0 0 0.75rem;
}

p {
    margin: 0 0 1rem;
}

.section {
    padding: clamp(3rem, 6vw, 5rem) 0;
}

.section--dark {
    background: linear-gradient(145deg, rgba(5, 5, 5, 0.96), rgba(16, 20, 36, 0.96));
}

.section--light {
    background-color: var(--color-bg-light);
}

.section--overlay {
    position: relative;
    isolation: isolate;
}

.section--overlay::before {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at top left, rgba(255, 107, 10, 0.25), rgba(17, 21, 37, 0.92));
    z-index: -1;
}

.section__header {
    text-align: center;
    margin-bottom: clamp(2rem, 5vw, 3.5rem);
    max-width: 720px;
    margin-left: auto;
    margin-right: auto;
}

.section__header--left {
    text-align: left;
    margin-left: 0;
    margin-right: 0;
}

.site-header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(5, 5, 5, 0.92);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(30, 62, 228, 0.35);
}

.site-header .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.75rem 0;
}

.brand {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.brand__logo {
    width: 54px;
    height: auto;
}

.brand__title {
    display: block;
    font-size: 1.1rem;
    font-weight: 700;
}

.brand__subtitle {
    font-size: 0.75rem;
    color: var(--color-muted);
}

.site-nav ul {
    list-style: none;
    display: flex;
    gap: 1.5rem;
    padding: 0;
    margin: 0;
    font-weight: 500;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    font-size: 0.82rem;
}

.site-nav a {
    position: relative;
}

.site-nav a::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: -0.35rem;
    width: 100%;
    height: 2px;
    background: linear-gradient(90deg, var(--color-brand), var(--color-brand-alt));
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.2s ease;
}

.site-nav a:focus::after,
.site-nav a:hover::after {
    transform: scaleX(1);
}

.nav-toggle {
    border: 1px solid rgba(30, 62, 228, 0.45);
    background: transparent;
    color: var(--color-text);
    padding: 0.5rem;
    display: none;
    border-radius: 8px;
}

.nav-toggle__line,
.nav-toggle__line::before,
.nav-toggle__line::after {
    display: block;
    width: 22px;
    height: 2px;
    background-color: currentColor;
    position: relative;
    transition: transform 0.3s ease;
    border-radius: 999px;
}

.nav-toggle__line::before,
.nav-toggle__line::after {
    content: '';
    position: absolute;
    left: 0;
}

.nav-toggle__line::before {
    top: -6px;
}

.nav-toggle__line::after {
    top: 6px;
}

.hero {
    position: relative;
    background: url('assets/images/kru_num1.jpg') center / cover no-repeat;
    min-height: clamp(34rem, 95vh, 52rem);
    display: grid;
    place-items: center;
}

.hero .container {
    width: 100%;
    max-width: none;
    padding-inline: clamp(1.5rem, 6vw, 4.5rem);
}

.hero__overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(5, 5, 5, 0.82), rgba(11, 18, 31, 0.95));
}

.hero__content {
    position: relative;
    justify-items: center;
    text-align: center;
    padding-block: clamp(2rem, 6vw, 4rem);
    width: 100%;
}

.hero__content::after {
    content: '';
    position: absolute;
    inset: -3rem -4rem 0 -3rem;
    background: radial-gradient(circle at top right, rgba(30, 62, 228, 0.25), transparent 70%);
    z-index: -1;
}

.hero__copy {
    width: 100%;
    justify-items: center;
}

.hero__heading {
    font-size: clamp(2rem, 4.5vw, 3.5rem);
    font-weight: 700;
    line-height: 1.05;
    width: 100%;
    margin: 0;
    text-wrap: balance;
}

.hero__tagline {
    margin: 0.75rem 0 1.5rem;
    font-family: 'Kanit', sans-serif;
    font-size: clamp(1rem, 2.2vw, 1.35rem);
    font-weight: 600;
    letter-spacing: 0.06em;
    color: var(--color-brand-alt);
}

.hero__copy p {
    color: var(--color-muted);
    font-size: 1.05rem;
   
}

.hero__actions {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    justify-content: center;
}

.hero__logo-stack {
    display: grid;
    gap: clamp(1.2rem, 3vw, 2rem);
    justify-items: center;
}

.hero__logo {
    width: clamp(200px, 28vw, 320px);
    filter: drop-shadow(0 18px 40px rgba(0, 0, 0, 0.6));
}

.hero__logo--primary {
    border: none;
    border-radius: 28px;
    padding: clamp(1.5rem, 4vw, 2.5rem);
    background: transparent;
}

@media (max-width: 640px) {
    .hero__heading {
        font-size: clamp(2rem, 7vw, 3rem);
    }
}

.kru-feature {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 2rem;
    justify-items: center;
}

.kru-feature__card {
    margin: 0;
    background: var(--color-panel);
    border-radius: var(--card-radius);
    overflow: hidden;
    box-shadow: var(--shadow-soft);
    display: grid;
}

.kru-feature__card img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.kru-feature__card figcaption {
    padding: 1rem 1.25rem;
    font-size: 0.9rem;
    color: var(--color-muted);
    text-align: center;
}

.button {
    padding: 0.9rem 2.4rem;
    border-radius: 999px;
    font-family: 'Kanit', sans-serif;
    font-weight: 600;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    font-size: 0.85rem;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
}

.button--primary {
    background: linear-gradient(135deg, var(--color-brand), #c74400);
    color: #fff;
    box-shadow: var(--shadow-soft);
}

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

.button--ghost {
    border: 1px solid rgba(247, 211, 71, 0.5);
    background: transparent;
    color: var(--color-text);
}

.button--ghost:hover {
    border-color: var(--color-brand-alt);
    color: var(--color-brand-alt);
}

.card-grid {
    display: grid;
    gap: 1.75rem;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

.program-grid {
    display: grid;
    gap: 1.75rem;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

.program-card {
    background: var(--color-panel);
    border-radius: var(--card-radius);
    padding: 1.75rem;
    box-shadow: var(--shadow-soft);
    border: 1px solid rgba(30, 62, 228, 0.18);
    display: grid;
    gap: 0.75rem;
}

.program-card__time {
    font-size: 0.85rem;
    color: var(--color-muted);
    text-transform: uppercase;
    letter-spacing: 0.08em;
}

.schedule__grid {
    display: grid;
    gap: clamp(2rem, 6vw, 3.5rem);
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    align-items: center;
}

.schedule__image {
    display: grid;
    gap: 0.75rem;
    max-width: 520px;
    justify-items: center;
}

.schedule__image img {
    border-radius: var(--card-radius);
    box-shadow: var(--shadow-soft);
    border: 1px solid rgba(30, 62, 228, 0.25);
}

.schedule__image figcaption {
    font-size: 0.85rem;
    color: var(--color-muted);
    text-align: center;
}

.schedule__details {
    display: grid;
    gap: 1.5rem;
    max-width: 520px;
}

.schedule__list {
    list-style: none;
    margin: 0;
    padding: 0;
    display: grid;
    gap: 1rem;
}

.schedule__list li {
    display: grid;
    gap: 0.35rem;
    padding: 1rem 1.5rem;
    background: rgba(5, 5, 5, 0.45);
    border-radius: var(--card-radius);
    border: 1px solid rgba(30, 62, 228, 0.24);
    box-shadow: var(--shadow-soft);
}

.schedule__time {
    font-family: 'Kanit', sans-serif;
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--color-brand-alt);
    font-size: 0.85rem;
}

.schedule__label {
    font-size: 1rem;
    color: var(--color-text);
}

.schedule__cta {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    justify-content: flex-start;
}

.program-card h3 {
    color: var(--color-brand-alt);
    margin: 0;
}

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

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

.team-card {
    background: var(--color-panel);
    border-radius: var(--card-radius);
    overflow: hidden;
    box-shadow: var(--shadow-soft);
    display: grid;
    grid-template-rows: auto 1fr;
}

.team-card__image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.team-card__body {
    padding: 1.75rem;
}

.team-card__subtitle {
    color: var(--color-accent);
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    margin-bottom: 1rem;
}

.pricing-grid {
    display: grid;
    gap: 2rem;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
}

.pricing-card {
    background: rgba(8, 10, 18, 0.9);
    border-radius: var(--card-radius);
    padding: 2rem 1.75rem;
    text-align: center;
    position: relative;
    box-shadow: var(--shadow-soft);
    border: 1px solid rgba(30, 62, 228, 0.2);
}

.pricing-card--featured {
    border: 2px solid var(--color-brand-alt);
    transform: translateY(-8px);
}

.pricing-card__badge {
    position: absolute;
    top: -12px;
    right: 1.5rem;
    background: var(--color-brand-alt);
    color: #101214;
    font-weight: 700;
    padding: 0.3rem 0.8rem;
    border-radius: 999px;
    text-transform: uppercase;
    font-size: 0.7rem;
    letter-spacing: 0.08em;
}

.pricing-card__price {
    font-size: 2rem;
    font-weight: 700;
    color: var(--color-brand-alt);
}

.pricing-card__strike {
    text-decoration: line-through;
    display: inline-block;
    font-size: 1rem;
    color: rgba(163, 173, 201, 0.7);
    margin-left: 0.5rem;
}

.schedule-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 1.5rem;
}

.schedule-card {
    background: var(--color-panel);
    border-radius: var(--card-radius);
    padding: 1.75rem;
    box-shadow: var(--shadow-soft);
    border: 1px solid rgba(30, 62, 228, 0.18);
    display: grid;
    gap: 0.75rem;
}

.schedule-card__time {
    font-size: 0.85rem;
    color: var(--color-brand-alt);
    text-transform: uppercase;
    letter-spacing: 0.12em;
}

.schedule-card h3 {
    color: var(--color-brand-alt);
    margin: 0;
}

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

.testimonial-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 1.5rem;
}

.testimonial {
    background: rgba(8, 10, 18, 0.85);
    padding: 1.75rem;
    border-radius: var(--card-radius);
    box-shadow: var(--shadow-soft);
    font-style: italic;
}

.testimonial__author {
    display: block;
    margin-top: 1rem;
    color: var(--color-brand-alt);
    font-style: normal;
    font-weight: 600;
}

.contact__grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: clamp(2rem, 6vw, 3.5rem);
    align-items: start;
}

.contact__list {
    list-style: none;
    padding: 0;
    margin: 2rem 0;
    display: grid;
    gap: 1rem;
}

.contact__label {
    display: block;
    font-size: 0.75rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--color-muted);
    margin-bottom: 0.3rem;
}

.contact__cta {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
}

.contact__qr {
    margin-top: 1.75rem;
    padding: 1.5rem;
    background: rgba(8, 10, 18, 0.7);
    border-radius: var(--card-radius);
    border: 1px dashed rgba(247, 211, 71, 0.4);
    display: grid;
    gap: 0.75rem;
    justify-items: center;
    text-align: center;
}

.contact__qr img {
    width: clamp(140px, 25vw, 200px);
    filter: drop-shadow(0 18px 36px rgba(0, 0, 0, 0.45));
}

.contact__qr p {
    margin: 0;
    font-size: 0.9rem;
    color: var(--color-muted);
}

.contact__map {
    background: var(--color-panel);
    padding: 1.5rem;
    border-radius: var(--card-radius);
    box-shadow: var(--shadow-soft);
    border: 1px solid rgba(30, 62, 228, 0.18);
    display: grid;
    gap: 0.75rem;
}

.contact__map iframe {
    width: 100%;
    height: 260px;
    border: 0;
    border-radius: 12px;
}

.map-note {
    font-size: 0.8rem;
    color: var(--color-muted);
    margin: 0;
}

.site-footer {
    background: #040404;
    padding: 2.5rem 0;
    text-align: center;
    border-top: 1px solid rgba(30, 62, 228, 0.35);
}

.site-footer__brand {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 1.5rem;
}

.site-footer__brand img {
    width: 60px;
}

.site-footer__links {
    display: flex;
    justify-content: center;
    gap: 1.5rem;
    font-weight: 500;
    margin-bottom: 1rem;
}

.site-footer__copy {
    color: var(--color-muted);
    font-size: 0.8rem;
}

@media (max-width: 900px) {
    .site-nav {
        position: absolute;
        top: 100%;
        right: 0;
        width: min(260px, 75vw);
        background: rgba(5, 5, 5, 0.97);
        border: 1px solid rgba(30, 62, 228, 0.25);
        border-radius: 12px;
        padding: 1.5rem;
        box-shadow: var(--shadow-soft);
        opacity: 0;
        pointer-events: none;
        transform: translateY(-10px);
        transition: opacity 0.25s ease, transform 0.25s ease;
    }

    .site-nav ul {
        flex-direction: column;
        gap: 1rem;
        font-size: 0.9rem;
    }

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

    .nav-toggle {
        display: inline-flex;
        align-items: center;
        justify-content: center;
    }

    .hero__content {
        justify-items: center;
        text-align: center;
    }

    .hero__logo-stack {
        justify-items: center;
    }
}

@media (max-width: 540px) {
    .hero {
        min-height: 75vh;
    }

    .schedule-table__row {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .schedule__grid {
        justify-items: center;
    }

    .schedule__list li {
        text-align: center;
    }

    .schedule__cta {
        justify-content: center;
    }

    .contact__cta {
        justify-content: center;
    }

    .contact__qr {
        padding: 1.25rem;
    }

    .contact__map iframe {
        height: 220px;
    }

    .hero__logo {
        width: clamp(140px, 50vw, 220px);
    }

    .hero__logo-stack {
        gap: 1rem;
    }

    .hero__content {
        justify-items: center;
        text-align: center;
    }

    .hero__logo-stack {
        justify-items: center;
    }


::-webkit-scrollbar {
    width: 10px;
}

::-webkit-scrollbar-track {
    background: #030303;
}

::-webkit-scrollbar-thumb {
    background: linear-gradient(180deg, var(--color-brand), #c74400);
    border-radius: 8px;
}

@media (min-width: 1024px) {
    .hero__content {
        grid-template-columns: 1fr 0.6fr;
    }

    .hero__logo-stack {
        gap: 1.75rem;
    }

    .hero__logo {
        width: clamp(220px, 28vw, 300px);
    }
}


.photo-carousel {
    position: relative;
    display: grid;
    grid-template-columns: auto 1fr auto;
    gap: 1rem;
    align-items: center;
}

.photo-carousel__track {
    display: grid;
    grid-auto-flow: column;
    grid-auto-columns: minmax(240px, 26vw);
    gap: 1.5rem;
    overflow-x: auto;
    scroll-snap-type: x mandatory;
    scroll-behavior: smooth;
    scrollbar-width: thin;
    padding-block: 1rem;
    cursor: grab;
}

.photo-carousel__track::-webkit-scrollbar {
    height: 10px;
}

.photo-carousel__track::-webkit-scrollbar-track {
    background: rgba(5, 5, 5, 0.35);
}

.photo-carousel__track::-webkit-scrollbar-thumb {
    background: linear-gradient(180deg, var(--color-brand), #501117);
    border-radius: 8px;
}

.photo-carousel__track.is-grabbing {
    cursor: grabbing;
}

.photo-carousel__item {
    scroll-snap-align: center;
    border-radius: var(--card-radius);
    overflow: hidden;
    box-shadow: var(--shadow-soft);
    background: var(--color-panel);
}

.photo-carousel__item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.photo-carousel__nav {
    border: none;
    background: rgba(5, 5, 5, 0.55);
    color: var(--color-text);
    width: 44px;
    height: 44px;
    border-radius: 50%;
    display: grid;
    place-items: center;
    font-size: 1.5rem;
    cursor: pointer;
    transition: background 0.2s ease, transform 0.2s ease;
}

.photo-carousel__nav:hover,
.photo-carousel__nav:focus-visible {
    background: rgba(255, 107, 10, 0.8);
    outline: none;
    transform: translateY(-2px);
}

.photo-carousel__nav:disabled {
    opacity: 0.3;
    cursor: default;
    transform: none;
}

@media (max-width: 880px) {
    .photo-carousel__track {
        grid-auto-columns: 70vw;
    }
}

@media (max-width: 540px) {
    .photo-carousel {
        grid-template-columns: 1fr;
    }

    .photo-carousel__nav {
        display: none;
    }

    .photo-carousel__track {
        grid-auto-columns: 82vw;
    }
}

.highlight__grid {
    display: grid;
    gap: clamp(1.5rem, 4vw, 2.5rem);
}

@media (min-width: 900px) {
    .highlight__grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

.highlight__card {
    background: var(--color-panel);
    border-radius: var(--card-radius);
    box-shadow: var(--shadow-soft);
    padding: clamp(1.75rem, 4vw, 2.5rem);
    border: 1px solid rgba(30, 62, 228, 0.22);
}

.highlight__card h3 {
    margin-bottom: 0.75rem;
    font-size: 1rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--color-brand-alt);
}

.highlight__list {
    list-style: none;
    margin: 1rem 0;
    padding: 0;
    display: grid;
    gap: 0.5rem;
}

.highlight__list li {
    font-size: 0.95rem;
    font-weight: 500;
}

.pricing-card__time {
    display: inline-block;
    margin-bottom: 1rem;
    font-family: 'Kanit', sans-serif;
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--color-brand-alt);
}

.pricing-card__list {
    list-style: none;
    margin: 0;
    padding: 0;
    display: grid;
    gap: 0.6rem;
    text-align: left;
}

.pricing-card__list li {
    display: flex;
    justify-content: space-between;
    gap: 1rem;
    font-size: 0.95rem;
}

.pricing-card__list li span {
    flex: 1;
}

.pricing-card__list li strong {
    color: var(--color-brand-alt);
}

.pricing-card__note,
.pricing-card__contact {
    margin-top: 1.5rem;
    font-size: 0.9rem;
    color: var(--color-muted);
}

.pricing-card__contact strong {
    color: var(--color-text);
}

.reviews {
    background: rgba(8, 10, 18, 0.94);
    border-radius: var(--card-radius);
    box-shadow: var(--shadow-soft);
    border: 1px solid rgba(30, 62, 228, 0.35);
    padding: clamp(1.75rem, 4vw, 2.5rem);
    display: grid;
    gap: 1.5rem;
    text-decoration: none;
    color: var(--color-text);
}

.reviews--link {
    display: grid;
    gap: 1.5rem;
    transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}

.reviews--link:hover,
.reviews--link:focus-visible {
    border-color: rgba(247, 211, 71, 0.6);
    box-shadow: 0 24px 48px rgba(0, 0, 0, 0.45);
    transform: translateY(-3px);
    outline: none;
}

.reviews__header {
    display: grid;
    gap: 0.35rem;
}

.reviews__card {
    display: grid;
    gap: 1.25rem;
}

.reviews__rating {
    font-size: 1.25rem;
    color: var(--color-brand-alt);
    letter-spacing: 0.18em;
}

.reviews__quote {
    font-size: 1rem;
    line-height: 1.7;
    color: var(--color-text);
}

.reviews__quote p {
    margin: 0;
}

.reviews__meta {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    font-size: 0.9rem;
    color: var(--color-muted);
}

.reviews__author {
    font-weight: 600;
    color: var(--color-text);
}

.reviews__cta {
    text-transform: uppercase;
    letter-spacing: 0.06em;
    font-weight: 600;
    color: var(--color-brand-alt);
}

.reviews--link:hover .reviews__cta,
.reviews--link:focus-visible .reviews__cta {
    color: var(--color-brand);
}