:root {
    --ksb-primary-50: #fff9e6;
    --ksb-primary-100: #ffefbf;
    --ksb-primary-500: #ffc900;
    --ksb-primary-600: #ff9b00;
    --ksb-primary-700: #d97d00;
    --ksb-navy-800: #071a2e;
    --ksb-navy-900: #04111f;
    --ksb-surface: #ffffff;
    --ksb-page: #f5f7fa;
    --ksb-border: #ead9b8;
    --ksb-text: #0f172a;
    --ksb-muted: #64748b;
    --ksb-shadow-soft: 0 12px 28px -18px rgba(4, 17, 31, 0.32);
    --ksb-shadow-card: 0 24px 60px -34px rgba(4, 17, 31, 0.38);
    --ksb-focus: 0 0 0 3px rgba(255, 155, 0, 0.24);
    --ksb-radius-panel: 18px;
    --ksb-radius-control: 12px;
    --ksb-z-header: 40;
    --ksb-z-dropdown: 50;
    --ksb-z-drawer: 60;
    --ksb-z-modal: 70;
    --ksb-z-alert: 80;
}

html {
    scroll-behavior: smooth;
    text-rendering: optimizeLegibility;
}

body {
    background: var(--ksb-page);
    color: var(--ksb-text);
}

h1,
h2,
h3,
h4,
.font-display,
.ksb-section-label,
.ksb-btn-primary,
.ksb-btn-secondary,
.ksb-btn-ghost,
.ksb-price {
    font-family: "Manrope", "Be Vietnam Pro", system-ui, sans-serif;
}

body,
button,
input,
select,
textarea {
    font-feature-settings: "kern" 1;
}

input,
select,
textarea {
    font-size: 16px;
}

button,
a,
input,
select,
textarea {
    -webkit-tap-highlight-color: transparent;
}

:focus-visible {
    outline: 2px solid var(--ksb-primary-600);
    outline-offset: 3px;
}

.ksb-header {
    z-index: var(--ksb-z-header);
}

.ksb-dropdown {
    z-index: var(--ksb-z-dropdown);
}

.ksb-drawer,
.ksb-drawer-backdrop {
    z-index: var(--ksb-z-drawer);
}

.ksb-modal {
    z-index: var(--ksb-z-modal);
}

.ksb-alert,
.ksb-floating-contact {
    z-index: var(--ksb-z-alert);
}

.ksb-page-band {
    background:
        linear-gradient(180deg, rgba(255, 255, 255, 0.72), rgba(245, 247, 250, 0)),
        var(--ksb-page);
}

.ksb-section {
    padding-block: 3rem;
}

.ksb-section-compact {
    padding-block: 1.5rem;
}

.ksb-section-hero {
    padding-block: 3.5rem;
}

.ksb-section-cta {
    padding-block: 3rem;
}

.ksb-section-band {
    background:
        linear-gradient(180deg, rgba(255, 255, 255, 0.72), rgba(245, 247, 250, 0)),
        var(--ksb-page);
}

.ksb-container {
    width: 100%;
    max-width: 80rem;
    margin-inline: auto;
    padding-inline: 1rem;
}

.ksb-panel {
    background: #ffffff;
    border: 1px solid rgba(226, 232, 240, 0.94);
    border-radius: var(--ksb-radius-panel);
    box-shadow: var(--ksb-shadow-soft);
}

.ksb-panel-strong {
    background: #ffffff;
    border: 1px solid rgba(234, 217, 184, 0.92);
    border-radius: var(--ksb-radius-panel);
    box-shadow: var(--ksb-shadow-card);
}

.ksb-muted-card {
    background: #f8fafc;
    border: 1px solid #e2e8f0;
    border-radius: 14px;
}

@media (min-width: 768px) {
    .ksb-section {
        padding-block: 4rem;
    }

    .ksb-section-hero {
        padding-block: 4rem;
    }

    .ksb-section-cta {
        padding-block: 4rem;
    }
}

@media (min-width: 1024px) {
    .ksb-section {
        padding-block: 5rem;
    }

    .ksb-section-hero {
        padding-block: 5rem;
    }
}

.ksb-surface {
    width: 100%;
    max-width: 100%;
    background: var(--ksb-surface);
    border: 1px solid rgba(234, 217, 184, 0.9);
    border-radius: var(--ksb-radius-panel);
    box-shadow: var(--ksb-shadow-soft);
}

.ksb-surface > .grid > * {
    min-width: 0;
}

.ksb-surface-quiet {
    background: rgba(255, 255, 255, 0.82);
    border: 1px solid rgba(226, 232, 240, 0.92);
    border-radius: var(--ksb-radius-panel);
}

.ksb-hero {
    position: relative;
    z-index: 10;
    background-color: var(--ksb-navy-900);
}

.ksb-hero-media-wrapper {
    position: absolute;
    inset: 0;
    overflow: hidden;
    z-index: -2;
    pointer-events: none;
}

.ksb-home-hero {
    min-height: clamp(620px, 76vh, 820px);
}



.ksb-hero-media {
    position: absolute;
    inset: 0;
    z-index: -2;
    background-size: cover;
    background-position: center;
    transform: scale(1.02);
    animation: ksb-hero-drift 18s ease-in-out infinite alternate;
    will-change: transform, background-position;
}

.ksb-hero-media::after {
    content: "";
    position: absolute;
    inset: 0;
    background:
        linear-gradient(90deg, rgba(4, 17, 31, 0.9), rgba(4, 17, 31, 0.58) 44%, rgba(255, 155, 0, 0.24)),
        linear-gradient(180deg, rgba(4, 17, 31, 0.14), rgba(4, 17, 31, 0.5));
}

.ksb-trust-strip {
    background: rgba(4, 17, 31, 0.92);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.ksb-hero-visual {
    animation: ksb-hero-float 6.5s ease-in-out infinite;
    transform-origin: center;
}

.ksb-hero-search {
    animation: ksb-hero-search-rise 520ms cubic-bezier(0.2, 0.8, 0.2, 1) 180ms both;
}

.ksb-trust-item {
    position: relative;
    overflow: hidden;
    min-height: 76px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 16px;
    background: rgba(255, 255, 255, 0.055);
    padding: 0.9rem 1rem;
    opacity: 0;
    transform: translateY(10px);
    animation: ksb-trust-enter 520ms cubic-bezier(0.2, 0.8, 0.2, 1) var(--ksb-delay, 0ms) both;
}

.ksb-trust-item::after {
    content: "";
    position: absolute;
    inset: 0;
    pointer-events: none;
    background: linear-gradient(110deg, transparent 0%, rgba(255, 255, 255, 0.08) 42%, transparent 58%);
    transform: translateX(-120%);
    animation: ksb-trust-sheen 4.8s ease-in-out infinite;
}

.ksb-trust-item:hover {
    border-color: rgba(255, 201, 0, 0.28);
    background: rgba(255, 255, 255, 0.082);
}

.ksb-btn-primary,
.ksb-btn-secondary,
.ksb-btn-ghost {
    display: inline-flex;
    min-height: 44px;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    border-radius: var(--ksb-radius-control);
    font-weight: 700;
    transition: transform 180ms ease, background-color 180ms ease, border-color 180ms ease, color 180ms ease, box-shadow 180ms ease;
}

.ksb-btn-primary {
    background: linear-gradient(180deg, var(--ksb-primary-500), var(--ksb-primary-600));
    color: #111827;
    box-shadow: 0 14px 30px -20px rgba(255, 155, 0, 0.9);
}

.ksb-btn-primary:hover {
    background: linear-gradient(180deg, #ffd84a, var(--ksb-primary-600));
    transform: translateY(-1px);
}

.ksb-btn-primary:active,
.ksb-btn-secondary:active,
.ksb-btn-ghost:active {
    transform: translateY(1px) scale(0.99);
}

.ksb-btn-secondary {
    border: 1px solid rgba(255, 155, 0, 0.34);
    background: #ffffff;
    color: #9a5b00;
}

.ksb-btn-secondary:hover {
    border-color: var(--ksb-primary-600);
    background: var(--ksb-primary-50);
}

.ksb-btn-ghost {
    border: 1px solid rgba(255, 255, 255, 0.22);
    background: rgba(255, 255, 255, 0.08);
    color: #ffffff;
}

.ksb-btn-ghost:hover {
    background: rgba(255, 255, 255, 0.16);
}

.ksb-route-card {
    border: 1px solid rgba(226, 232, 240, 0.94);
    border-radius: 16px;
    background: #ffffff;
    box-shadow: 0 12px 30px -24px rgba(4, 17, 31, 0.32);
    transition: transform 220ms ease, border-color 220ms ease, box-shadow 220ms ease;
}

.ksb-route-card:hover {
    border-color: rgba(255, 155, 0, 0.48);
    box-shadow: var(--ksb-shadow-card);
    transform: translateY(-2px);
}

.ksb-trip-row {
    position: relative;
    overflow: hidden;
    border: 1px solid rgba(226, 232, 240, 0.94);
    border-radius: 18px;
    background: #ffffff;
    box-shadow: 0 14px 34px -28px rgba(4, 17, 31, 0.34);
    transition: transform 220ms ease, border-color 220ms ease, box-shadow 220ms ease;
}

.ksb-trip-row::before {
    content: "";
    position: absolute;
    inset: 0 auto 0 0;
    width: 4px;
    background: linear-gradient(180deg, var(--ksb-primary-500), var(--ksb-primary-700));
}

.ksb-trip-row:hover {
    border-color: rgba(255, 155, 0, 0.5);
    box-shadow: var(--ksb-shadow-card);
    transform: translateY(-2px);
}

.ksb-filter-shell {
    overflow: hidden;
    border: 1px solid rgba(234, 217, 184, 0.9);
    border-radius: var(--ksb-radius-panel);
    background: #ffffff;
    box-shadow: var(--ksb-shadow-soft);
}

.ksb-mobile-action-bar {
    padding-bottom: max(0.75rem, env(safe-area-inset-bottom));
}

.ksb-booking-step {
    min-width: 0;
    width: 100%;
}

.ksb-booking-step .step-circle {
    box-shadow: 0 0 0 4px #ffffff;
}

.ksb-booking-step .step-item {
    min-width: 0;
    flex: 1 1 0;
    text-align: center;
}

.ksb-booking-step .step-label {
    max-width: 6.5rem;
    line-height: 1.35;
}

.ksb-sticky-summary {
    position: sticky;
    top: 112px;
}

.ksb-route-timeline {
    position: relative;
    min-height: 2px;
    background: linear-gradient(90deg, #10b981, #e2e8f0 48%, #ef4444);
}

.ksb-route-timeline::before,
.ksb-route-timeline::after {
    content: "";
    position: absolute;
    top: 50%;
    width: 10px;
    height: 10px;
    border-radius: 999px;
    transform: translateY(-50%);
    background: #ffffff;
    border: 3px solid currentColor;
}

.ksb-route-timeline::before {
    left: 0;
    color: #10b981;
}

.ksb-route-timeline::after {
    right: 0;
    color: #ef4444;
}

.ksb-form-control {
    min-height: 46px;
    border-radius: var(--ksb-radius-control);
    border: 1px solid #dbe3ee;
    background: #f8fafc;
    color: var(--ksb-text);
    transition: border-color 160ms ease, background-color 160ms ease, box-shadow 160ms ease;
}

.ksb-form-control:focus,
.ksb-form-control:focus-visible {
    border-color: var(--ksb-primary-600);
    background: #ffffff;
    box-shadow: var(--ksb-focus);
    outline: none;
}

.ksb-chip {
    border-radius: 10px;
    border: 1px solid #e2e8f0;
    background: #f8fafc;
    color: #475569;
}

.ksb-chip-active {
    border-color: var(--ksb-primary-600);
    background: var(--ksb-primary-600);
    color: #ffffff;
}

.ksb-section-label {
    color: #9a5b00;
    font-size: 0.78rem;
    font-weight: 800;
    letter-spacing: 0.04em;
}

.ksb-text-balance {
    text-wrap: balance;
}

.ksb-price {
    color: #b86100;
    font-variant-numeric: tabular-nums;
}

.ksb-slide-fade {
    animation: ksb-slide-fade 220ms ease-out;
}

@keyframes ksb-slide-fade {
    from {
        opacity: 0;
        transform: translateY(-10px) scale(0.985);
    }

    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

@keyframes ksb-hero-drift {
    from {
        background-position: 50% 42%;
        transform: scale(1.02);
    }

    to {
        background-position: 54% 48%;
        transform: scale(1.055);
    }
}

@keyframes ksb-hero-float {
    0%,
    100% {
        transform: translateY(0);
    }

    50% {
        transform: translateY(-8px);
    }
}

@keyframes ksb-hero-search-rise {
    from {
        opacity: 0;
        transform: translateY(18px) scale(0.992);
    }

    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

@keyframes ksb-trust-enter {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes ksb-trust-sheen {
    0%,
    55% {
        transform: translateX(-120%);
    }

    82%,
    100% {
        transform: translateX(120%);
    }
}

.flatpickr-day.selected,
.flatpickr-day.startRange,
.flatpickr-day.endRange {
    border-color: var(--ksb-primary-600);
    background: var(--ksb-primary-600);
}

.flatpickr-day.today {
    border-color: var(--ksb-primary-500);
}

.flatpickr-day:hover {
    border-color: var(--ksb-primary-100);
    background: var(--ksb-primary-100);
}

.ksb-reveal {
    opacity: 1;
    transform: none;
    animation: ksb-reveal-in 520ms cubic-bezier(0.2, 0.8, 0.2, 1) var(--ksb-delay, 0ms) both;
}

.ksb-reveal.is-visible {
    opacity: 1;
    transform: translateY(0);
    transition: opacity 360ms ease, transform 360ms ease;
}

@keyframes ksb-reveal-in {
    from {
        opacity: 0;
        transform: translateY(14px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@media (max-width: 767px) {
    .ksb-home-hero {
        min-height: 0;
    }

    .ksb-trust-item {
        min-height: 70px;
    }
}

@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        scroll-behavior: auto !important;
        transition-duration: 0.01ms !important;
    }

    .ksb-reveal {
        opacity: 1;
        transform: none;
    }

    .ksb-hero-search,
    .ksb-hero-visual,
    .ksb-hero-media,
    .ksb-trust-item,
    .ksb-trust-item::after,
    .ksb-marquee-content {
        opacity: 1;
        transform: none;
        animation: none !important;
    }
}

/* Infinite Marquee */
.ksb-marquee-container {
    display: flex;
    overflow: hidden;
    user-select: none;
    mask-image: linear-gradient(to right, transparent, white 8%, white 92%, transparent);
    -webkit-mask-image: linear-gradient(to right, transparent, white 8%, white 92%, transparent);
    width: 100%;
}

.ksb-marquee-content {
    display: flex;
    flex-shrink: 0;
    align-items: center;
    justify-content: space-around;
    min-width: 100%;
    animation: ksb-marquee 35s linear infinite;
}

.ksb-marquee-container:hover .ksb-marquee-content {
    animation-play-state: paused;
}

@keyframes ksb-marquee {
    0% {
        transform: translateX(0);
    }
    100% {
        transform: translateX(-50%);
    }
}