/**
 * BAIRS — Horizontal Scroll component
 * Sticky stage + translateX track.
 * --panel-count debe estar seteado en el elemento [data-bairs-hscroll].
 */

[data-bairs-hscroll] {
    position: relative;
    width: 100%;
    --panel-count: 4;
    --accent: var(--color-primary-soft, #38bdf8);
    height: calc(var(--panel-count, 4) * 100vh);
    background: var(--color-bg-0, #07090d);
    color: #ffffff;
    overflow: clip; /* clip permite overflow vertical (sticky) sin esconder paneles */
    isolation: isolate;
}

[data-bairs-hscroll-stage] {
    position: sticky;
    top: 0;
    height: 100vh;
    width: 100%;
    overflow: hidden;
}

[data-bairs-hscroll-track] {
    display: flex;
    flex-wrap: nowrap;
    height: 100%;
    width: max-content;
    will-change: transform;
    transition: none;
}

[data-bairs-hscroll-panel] {
    flex: 0 0 100vw;
    width: 100vw;
    height: 100%;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    justify-content: center;
    padding: 0 clamp(2rem, 8vw, 9rem);
    box-sizing: border-box;
    position: relative;
    color: #ffffff;
    background: linear-gradient(135deg, rgba(0, 0, 0, 0.4) 0%, transparent 60%),
                radial-gradient(circle at 80% 20%, color-mix(in srgb, var(--panel-accent, #38bdf8) 25%, transparent) 0%, transparent 50%);
}

[data-bairs-hscroll-panel] .bairs-hscroll-eyebrow {
    font-family: var(--font-mono, ui-monospace);
    font-size: 0.8125rem;
    font-weight: 500;
    letter-spacing: 0.22em;
    text-transform: uppercase;
    color: var(--panel-accent, #38bdf8);
    margin-bottom: 1rem;
    opacity: 0.95;
}

[data-bairs-hscroll-panel] .bairs-hscroll-number {
    font-family: var(--font-mono, ui-monospace);
    font-size: clamp(7rem, 14vw, 14rem);
    line-height: 0.9;
    font-weight: 200;
    letter-spacing: -0.06em;
    background: linear-gradient(135deg, var(--panel-accent, #38bdf8) 0%, rgba(255, 255, 255, 0.85) 80%);
    background-clip: text;
    -webkit-background-clip: text;
    color: transparent;
    margin: 0 0 1.5rem 0;
    text-shadow: 0 0 60px color-mix(in srgb, var(--panel-accent, #38bdf8) 25%, transparent);
}

[data-bairs-hscroll-panel] .bairs-hscroll-title {
    font-family: var(--font-display);
    font-size: clamp(2rem, 4vw, 3.5rem);
    line-height: 1.1;
    letter-spacing: -0.02em;
    font-weight: 500;
    margin: 0 0 1.25rem 0;
    max-width: 16ch;
}

[data-bairs-hscroll-panel] .bairs-hscroll-description {
    font-size: clamp(1rem, 1.2vw, 1.25rem);
    line-height: 1.55;
    color: rgba(255, 255, 255, 0.78);
    max-width: 48ch;
    margin: 0 0 2rem 0;
}

[data-bairs-hscroll-panel] .bairs-hscroll-cta {
    display: inline-flex;
    align-items: center;
    gap: 0.6rem;
    padding: 0.95rem 1.75rem;
    background: var(--panel-accent, #38bdf8);
    color: #04111c;
    text-decoration: none;
    font-weight: 600;
    font-size: 0.9375rem;
    letter-spacing: 0.02em;
    border-radius: 999px;
    transition: transform 220ms cubic-bezier(0.22, 1, 0.36, 1),
                box-shadow 220ms cubic-bezier(0.22, 1, 0.36, 1);
}

[data-bairs-hscroll-panel] .bairs-hscroll-cta:hover {
    transform: translateY(-2px);
    box-shadow: 0 16px 40px color-mix(in srgb, var(--panel-accent, #38bdf8) 35%, transparent);
}

[data-bairs-hscroll-panel] .bairs-hscroll-cta::after {
    content: '→';
    font-size: 1.1em;
    transition: transform 220ms cubic-bezier(0.22, 1, 0.36, 1);
}

[data-bairs-hscroll-panel] .bairs-hscroll-cta:hover::after {
    transform: translateX(4px);
}

/* Indicador de progreso (dots) abajo a la izquierda del stage */
.bairs-hscroll-progress {
    position: absolute;
    left: clamp(2rem, 8vw, 9rem);
    bottom: 4vh;
    z-index: 3;
    display: flex;
    gap: 0.6rem;
    align-items: center;
}

.bairs-hscroll-progress-dot {
    width: 28px;
    height: 2px;
    background: rgba(255, 255, 255, 0.18);
    transition: background 320ms ease, width 320ms cubic-bezier(0.22, 1, 0.36, 1);
}

[data-bairs-hscroll][data-active-panel="0"] .bairs-hscroll-progress-dot:nth-child(1),
[data-bairs-hscroll][data-active-panel="1"] .bairs-hscroll-progress-dot:nth-child(2),
[data-bairs-hscroll][data-active-panel="2"] .bairs-hscroll-progress-dot:nth-child(3),
[data-bairs-hscroll][data-active-panel="3"] .bairs-hscroll-progress-dot:nth-child(4) {
    background: #ffffff;
    width: 56px;
}

/* Hint visual al usuario de que la sección requiere seguir scrolleando */
.bairs-hscroll-hint {
    position: absolute;
    right: clamp(2rem, 8vw, 9rem);
    bottom: 4vh;
    z-index: 3;
    font-family: var(--font-mono, ui-monospace);
    font-size: 0.75rem;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: rgba(255, 255, 255, 0.55);
    display: flex;
    align-items: center;
    gap: 0.6rem;
}

.bairs-hscroll-hint::after {
    content: '';
    width: 2.5rem;
    height: 1px;
    background: rgba(255, 255, 255, 0.4);
    animation: bairs-hscroll-hint 1.6s ease-in-out infinite;
}

@keyframes bairs-hscroll-hint {
    0%, 100% { transform: scaleX(0.4); transform-origin: left; opacity: 0.4; }
    50%      { transform: scaleX(1);   transform-origin: left; opacity: 1; }
}

/* Fallback mobile y reduced-motion: paneles apilados verticales. */
@media (max-width: 768px) {
    [data-bairs-hscroll] {
        height: auto;
    }
    [data-bairs-hscroll-stage] {
        position: relative;
        height: auto;
        overflow: visible;
    }
    [data-bairs-hscroll-track] {
        flex-direction: column;
        width: 100%;
        transform: none !important;
    }
    [data-bairs-hscroll-panel] {
        flex: 0 0 auto;
        width: 100%;
        height: auto;
        min-height: 80vh;
        padding: 5rem clamp(1.5rem, 6vw, 3rem);
    }
    .bairs-hscroll-progress,
    .bairs-hscroll-hint {
        display: none;
    }
}

.bairs-hscroll--reduced {
    height: auto !important;
}
.bairs-hscroll--reduced [data-bairs-hscroll-stage] {
    position: relative !important;
    height: auto !important;
    overflow: visible !important;
}
.bairs-hscroll--reduced [data-bairs-hscroll-track] {
    flex-direction: column !important;
    width: 100% !important;
    transform: none !important;
}
.bairs-hscroll--reduced [data-bairs-hscroll-panel] {
    flex: 0 0 auto !important;
    width: 100% !important;
    height: auto !important;
    min-height: 70vh;
}
.bairs-hscroll--reduced .bairs-hscroll-progress,
.bairs-hscroll--reduced .bairs-hscroll-hint {
    display: none;
}