/* ---------------------------------------------------------
   URWIND HOME — Premium B2B sections (after marquee)
   Dark palette — 4 flat accents (no gradients)
   Black #0B0B0B · Dark Red #E60000 · Gold #C9A227 · White #FFFFFF
   --------------------------------------------------------- */

.premium-landing {
    --premium-ink: #0B0B0B;
    --premium-slate: #141414;
    --premium-charcoal: #111111;
    --premium-crimson: #E60000;
    --premium-gold: #C9A227;
    --premium-steel: #1A1A1A;
    --premium-red: #E60000;
    --premium-white: #FFFFFF;
    --premium-ink-2: #0B0B0B;
    --premium-glass: #141414;
    --premium-border: rgba(201, 162, 39, 0.2);
    --premium-radius: 18px;
    --premium-container: min(1240px, calc(100% - 40px));
    position: relative;
    width: 100%;
    color: #fff;
    font-family: var(--font-body, 'Inter', sans-serif);
}

.premium-container {
    width: var(--premium-container);
    margin-inline: auto;
}

.premium-section {
    position: relative;
    padding: clamp(72px, 8vw, 96px) 0;
    overflow: hidden;
}

/* ── Featured Products — 3D curve carousel ─────────── */

.premium-section--featured-curve {
    position: relative;
    overflow: hidden;
    padding: clamp(56px, 7vw, 80px) 0;
    background: var(--premium-ink);
    color: #fff;
}

.featured-curve-deco {
    position: absolute;
    width: clamp(180px, 22vw, 280px);
    height: clamp(180px, 22vw, 280px);
    opacity: 0.04;
    pointer-events: none;
    background-repeat: no-repeat;
    background-size: contain;
}

.featured-curve-deco--left {
    top: 12%;
    left: -40px;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 120 120' fill='none'%3E%3Ccircle cx='60' cy='60' r='52' stroke='%23111115' stroke-width='2'/%3E%3Cpath d='M38 72c8-18 36-18 44 0' stroke='%23111115' stroke-width='2' stroke-linecap='round'/%3E%3Cpath d='M30 45h60M30 55h45' stroke='%23111115' stroke-width='2' stroke-linecap='round'/%3E%3C/svg%3E");
}

.featured-curve-deco--right {
    bottom: 8%;
    right: -30px;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 120 120' fill='none'%3E%3Crect x='25' y='20' width='70' height='80' rx='8' stroke='%23111115' stroke-width='2'/%3E%3Cpath d='M35 40h50M35 55h50M35 70h35' stroke='%23111115' stroke-width='2' stroke-linecap='round'/%3E%3C/svg%3E");
}

.featured-curve-wrap {
    position: relative;
    z-index: 1;
}

.featured-curve-head {
    margin-bottom: clamp(24px, 4vw, 36px);
}

.featured-curve-head .premium-lead {
    margin-bottom: 0;
}

.premium-section--featured-curve .premium-title {
    color: #fff;
}

.premium-section--featured-curve .premium-lead {
    color: rgba(255, 255, 255, 0.58);
    margin-inline: auto;
}

.featured-curve-kicker {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 10px;
    padding: 6px 14px;
    border-radius: 999px;
    font-family: var(--font-heading, 'Inter', sans-serif);
    font-size: 10px;
    font-weight: 800;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--premium-ink);
    background: var(--premium-gold);
    border: 1px solid #A88620;
}

/* Dark premium panel — fills whitespace */
.featured-curve-panel {
    position: relative;
    padding: clamp(20px, 3vw, 28px) clamp(16px, 3vw, 24px) clamp(18px, 2.5vw, 24px);
    border-radius: 22px;
    background: var(--premium-slate);
    border: 1px solid var(--premium-border);
    border-top: 3px solid var(--premium-crimson);
    box-shadow: 0 24px 60px rgba(0, 0, 0, 0.35);
    overflow: hidden;
}

.featured-curve-panel__glow {
    display: none;
}

.featured-curve-tags {
    position: relative;
    z-index: 1;
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 8px;
    margin-bottom: 14px;
}

.featured-curve-tags span {
    padding: 5px 12px;
    border-radius: 999px;
    font-size: 10px;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: #fff;
    background: var(--premium-crimson);
    border: 1px solid #C40000;
    transition: background 0.35s ease, color 0.35s ease, border-color 0.35s ease;
}

.featured-curve-tag.is-active {
    background: var(--premium-gold);
    border-color: #A88620;
    color: var(--premium-ink);
}

.featured-curve {
    position: relative;
    z-index: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 14px;
    margin: 0;
    padding: 0;
}

.featured-curve-stage {
    position: relative;
    flex: 1;
    max-width: 100%;
    height: clamp(340px, 36vw, 400px);
    perspective: 2000px;
    perspective-origin: 50% 48%;
}

.featured-curve-track {
    position: relative;
    width: 100%;
    height: 100%;
    transform-style: preserve-3d;
}

.featured-curve-card {
    position: absolute;
    left: 50%;
    top: 50%;
    width: min(300px, 64vw);
    text-decoration: none;
    color: inherit;
    border-radius: 16px;
    overflow: hidden;
    background: var(--premium-ink);
    box-shadow: 0 18px 44px rgba(0, 0, 0, 0.28);
    transform-style: preserve-3d;
    transform-origin: center center;
    backface-visibility: hidden;
    transition:
        transform 0.7s cubic-bezier(0.22, 1, 0.36, 1),
        opacity 0.55s ease,
        box-shadow 0.55s ease,
        filter 0.55s ease;
    will-change: transform, opacity;
}

/* Active — flat, front, large (reference center trainer) */
.featured-curve-card[data-pos="0"] {
    z-index: 5;
    opacity: 1;
    filter: none;
    box-shadow:
        0 30px 64px rgba(0, 0, 0, 0.38),
        0 0 0 1px rgba(201, 162, 39, 0.12);
    transform: translate(-50%, -50%) translateZ(120px) rotateY(0deg) rotateX(0deg) scale(1);
    pointer-events: auto;
}

/* Previous — tilted in from left */
.featured-curve-card[data-pos="-1"] {
    z-index: 3;
    opacity: 0.95;
    filter: brightness(0.9) saturate(0.95);
    transform: translate(-50%, -50%) translateX(-112%) translateZ(-40px) rotateY(38deg) rotateX(2deg) scale(0.84);
    pointer-events: auto;
}

/* Next — tilted in from right */
.featured-curve-card[data-pos="1"] {
    z-index: 3;
    opacity: 0.95;
    filter: brightness(0.9) saturate(0.95);
    transform: translate(-50%, -50%) translateX(112%) translateZ(-40px) rotateY(-38deg) rotateX(2deg) scale(0.84);
    pointer-events: auto;
}

.featured-curve-card[data-pos="-2"],
.featured-curve-card[data-pos="2"] {
    z-index: 1;
    opacity: 0;
    pointer-events: none;
    transform: translate(-50%, -50%) translateZ(-120px) rotateY(0deg) scale(0.6);
}

.featured-curve-card__img {
    position: relative;
    height: clamp(240px, 30vw, 300px);
    overflow: hidden;
}

.featured-curve-card__img::after {
    content: '';
    position: absolute;
    inset: auto 0 0 0;
    height: 42%;
    background: linear-gradient(to top, var(--premium-ink) 0%, transparent 100%);
    pointer-events: none;
}

.featured-curve-card__img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s ease;
}

.featured-curve-card[data-pos="0"]:hover .featured-curve-card__img img {
    transform: scale(1.05);
}

.featured-curve-card__bar {
    padding: 18px 20px 20px;
    background: var(--premium-ink);
    text-align: left;
    border-top: 2px solid var(--premium-crimson);
    transition: background 0.45s ease, border-color 0.45s ease, color 0.45s ease;
}

/* Highlighted center card — black + gold */
.featured-curve-card[data-pos="0"] .featured-curve-card__bar {
    border-top-color: var(--premium-gold);
}

.featured-curve-card[data-pos="0"] .featured-curve-card__bar strong,
.featured-curve-card[data-pos="0"] .featured-curve-card__bar span {
    color: var(--premium-gold);
}

/* Side cards — red footer strip only, white text (image untouched) */
.featured-curve-card[data-pos="-1"] .featured-curve-card__bar,
.featured-curve-card[data-pos="1"] .featured-curve-card__bar {
    background: var(--premium-crimson);
    border-top-color: var(--premium-crimson);
}

.featured-curve-card[data-pos="-1"] .featured-curve-card__bar strong,
.featured-curve-card[data-pos="-1"] .featured-curve-card__bar span,
.featured-curve-card[data-pos="1"] .featured-curve-card__bar strong,
.featured-curve-card[data-pos="1"] .featured-curve-card__bar span {
    color: #fff;
}

.featured-curve-card__bar strong {
    display: block;
    font-family: var(--font-heading, 'Inter', sans-serif);
    font-size: 1.05rem;
    font-weight: 800;
    line-height: 1.2;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    transition: color 0.45s ease;
}

.featured-curve-card__bar span {
    display: block;
    margin-top: 6px;
    font-size: 0.8rem;
    font-weight: 500;
    line-height: 1.45;
    opacity: 1;
    transition: color 0.45s ease;
}

.featured-curve-card[data-pos="0"] .featured-curve-card__bar span {
    color: rgba(201, 162, 39, 0.82);
}

.featured-curve-card[data-pos="-1"] .featured-curve-card__bar span,
.featured-curve-card[data-pos="1"] .featured-curve-card__bar span {
    color: rgba(255, 255, 255, 0.9);
}

.featured-curve-nav {
    flex-shrink: 0;
    width: 44px;
    height: 44px;
    display: grid;
    place-items: center;
    border: 0;
    border-radius: 50%;
    cursor: pointer;
    transition: transform 0.25s ease, box-shadow 0.25s ease, background 0.25s ease;
    z-index: 5;
}

.featured-curve-nav svg {
    width: 20px;
    height: 20px;
    fill: none;
    stroke: currentColor;
    stroke-width: 2.2;
    stroke-linecap: round;
    stroke-linejoin: round;
}

.featured-curve-nav--prev,
.featured-curve-nav--next {
    color: #fff;
    background: var(--premium-crimson);
    box-shadow: 0 8px 22px rgba(0, 0, 0, 0.35);
}

.featured-curve-nav:hover {
    transform: scale(1.08);
}

.featured-curve-dot.is-active {
    width: 22px;
    border-radius: 999px;
    background: var(--premium-gold);
}

.featured-curve-panel__foot {
    position: relative;
    z-index: 1;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    flex-wrap: wrap;
    margin-top: 8px;
    padding-top: 16px;
    border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.featured-curve-dots {
    display: flex;
    justify-content: flex-start;
    gap: 8px;
    margin: 0;
}

.featured-curve-dot {
    width: 8px;
    height: 8px;
    padding: 0;
    border: 0;
    border-radius: 50%;
    background: rgba(230, 0, 0, 0.55);
    cursor: pointer;
    transition: transform 0.25s ease, background 0.25s ease, width 0.25s ease;
}

.featured-curve-actions {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-wrap: wrap;
}

.featured-curve-link {
    padding: 10px 16px;
    border-radius: 999px;
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    text-decoration: none;
    color: rgba(255, 255, 255, 0.75);
    border: 1px solid rgba(255, 255, 255, 0.16);
    transition: color 0.2s ease, border-color 0.2s ease, background 0.2s ease;
}

.featured-curve-link:hover {
    color: #fff;
    border-color: var(--premium-gold);
    background: var(--premium-charcoal);
}

.featured-curve-cta {
    padding: 10px 18px;
    border-radius: 999px;
    font-size: 11px;
    font-weight: 800;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    text-decoration: none;
    color: #fff;
    background: var(--premium-crimson);
    border: 1px solid #C40000;
    box-shadow: 0 8px 22px rgba(0, 0, 0, 0.3);
    transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
}

.featured-curve-cta:hover {
    transform: translateY(-2px);
    background: var(--red-dark);
    box-shadow: 0 12px 28px rgba(0, 0, 0, 0.4);
    color: #fff;
}

/* ── Typography ─────────────────────────────────────── */

.premium-kicker {
    display: inline-block;
    margin-bottom: 14px;
    font-family: var(--font-heading, 'Inter', sans-serif);
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 0.22em;
    text-transform: uppercase;
    color: var(--premium-crimson);
}

.premium-kicker--gold {
    color: var(--premium-gold);
}

.premium-kicker--slate {
    color: var(--premium-gold);
}

.premium-title {
    margin: 0 0 16px;
    font-family: var(--font-heading, 'Inter', sans-serif);
    font-size: clamp(2rem, 4.5vw, 3.25rem);
    font-weight: 700;
    line-height: 1.08;
    letter-spacing: -0.03em;
    color: var(--premium-ink);
}

.premium-title--light {
    color: #fff;
}

.premium-lead {
    max-width: 62ch;
    margin: 0;
    font-size: clamp(0.95rem, 1.5vw, 1.08rem);
    line-height: 1.7;
    color: rgba(17, 17, 21, 0.72);
}

.premium-lead--light {
    color: rgba(255, 255, 255, 0.68);
}

.premium-head {
    margin-bottom: clamp(36px, 5vw, 56px);
}

.premium-head--center {
    text-align: center;
}

.premium-head--center .premium-lead {
    margin-inline: auto;
}

/* ── Scroll reveal ──────────────────────────────────── */

[data-reveal],
[data-reveal-item] {
    opacity: 0;
    transform: translateY(28px);
    transition:
        opacity 0.7s cubic-bezier(0.22, 1, 0.36, 1),
        transform 0.7s cubic-bezier(0.22, 1, 0.36, 1);
    transition-delay: calc(var(--stagger, 0) * 80ms);
}

[data-reveal].is-visible,
[data-reveal-item].is-visible {
    opacity: 1;
    transform: translateY(0);
}

/* ── Glass cards ────────────────────────────────────── */

.premium-glass-card {
    position: relative;
    background: var(--premium-charcoal);
    border: 1px solid var(--premium-border);
    border-radius: var(--premium-radius);
    box-shadow: 0 18px 48px rgba(0, 0, 0, 0.35);
    transition:
        transform 0.35s cubic-bezier(0.22, 1, 0.36, 1),
        border-color 0.35s ease,
        box-shadow 0.35s ease;
}

.premium-glass-card:hover {
    transform: translateY(-6px);
}

.premium-border-glow {
    border-color: rgba(201, 162, 39, 0.35);
}

.premium-border-glow::before {
    display: none;
}

/* ── Buttons & links ────────────────────────────────── */

.premium-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 14px 28px;
    border-radius: 999px;
    font-family: var(--font-heading, 'Inter', sans-serif);
    font-size: 13px;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    text-decoration: none;
    border: 1px solid transparent;
    cursor: pointer;
    transition:
        transform 0.25s ease,
        box-shadow 0.25s ease,
        background 0.25s ease,
        border-color 0.25s ease,
        color 0.25s ease;
}

.premium-btn--primary {
    background: var(--premium-crimson);
    color: #fff;
    border-color: #C40000;
    box-shadow: 0 12px 32px rgba(0, 0, 0, 0.35);
}

.premium-btn--primary:hover {
    transform: translateY(-2px);
    background: var(--red-dark);
    box-shadow: 0 16px 40px rgba(0, 0, 0, 0.45);
    color: #fff;
}

.premium-btn--ghost {
    background: transparent;
    border-color: rgba(255, 255, 255, 0.22);
    color: #fff;
}

.premium-btn--ghost:hover {
    border-color: var(--premium-gold);
    color: var(--premium-gold);
    transform: translateY(-2px);
}

.premium-btn--sm {
    padding: 10px 20px;
    font-size: 11px;
}

.premium-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--premium-gold);
    text-decoration: none;
    transition: color 0.2s ease, gap 0.2s ease;
}

.premium-link:hover {
    color: #fff;
    gap: 10px;
}

/* ── SECTION 1: Categories ──────────────────────────── */

.premium-section--categories {
    background: #fff;
    color: var(--premium-ink);
}

.premium-cat-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 22px;
}

.premium-cat-card {
    display: flex;
    flex-direction: column;
    overflow: hidden;
    text-decoration: none;
    color: inherit;
    background: #fff;
    border-color: rgba(17, 17, 21, 0.08);
    box-shadow: 0 12px 36px rgba(0, 0, 0, 0.08);
}

.premium-cat-card::after {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: inherit;
    box-shadow: inset 0 0 0 1px transparent;
    transition: box-shadow 0.35s ease;
    pointer-events: none;
}

.premium-cat-card:hover::after {
    box-shadow:
        inset 0 0 0 1px rgba(230, 0, 0, 0.5),
        0 0 28px rgba(230, 0, 0, 0.18),
        0 0 48px rgba(201, 162, 39, 0.12);
}

.premium-cat-card__img {
    position: relative;
    aspect-ratio: 4 / 3;
    overflow: hidden;
}

.premium-cat-card__img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s cubic-bezier(0.22, 1, 0.36, 1);
}

.premium-cat-card:hover .premium-cat-card__img img {
    transform: scale(1.08);
}

.premium-cat-card__body {
    padding: 22px 22px 24px;
}

.premium-cat-card__body h3 {
    margin: 0 0 8px;
    font-family: var(--font-heading, 'Inter', sans-serif);
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--premium-ink);
}

.premium-cat-card__body p {
    margin: 0 0 14px;
    font-size: 0.9rem;
    line-height: 1.6;
    color: rgba(17, 17, 21, 0.62);
}

/* ── SECTION 2: OEM ───────────────────────────────── */

.premium-section--oem {
    background: var(--premium-slate);
    border-top: 1px solid rgba(255, 255, 255, 0.06);
}

.premium-oem-grid {
    display: grid;
    grid-template-columns: 1fr 1.05fr;
    gap: clamp(32px, 5vw, 64px);
    align-items: center;
}

.premium-oem-media {
    position: relative;
    border-radius: var(--premium-radius);
    overflow: hidden;
    aspect-ratio: 16 / 10;
    background: #0a0a0e;
    border: 1px solid var(--premium-border);
}

.premium-oem-media img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
    transform: scale(1);
    transition: transform 0.8s cubic-bezier(0.22, 1, 0.36, 1);
}

.premium-oem-media.is-visible img,
.premium-oem-media:hover img {
    transform: scale(1);
}

.premium-oem-glow {
    display: none;
}

.premium-feature-list {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 14px 20px;
    margin: 28px 0 32px;
    padding: 0;
    list-style: none;
}

.premium-feature-item {
    display: flex;
    gap: 12px;
    align-items: flex-start;
    padding: 14px;
    border-radius: 14px;
    background: var(--premium-glass);
    border: 1px solid var(--premium-border);
}

.premium-feature-item strong {
    display: block;
    margin-bottom: 4px;
    font-size: 0.82rem;
    font-weight: 700;
    color: #fff;
}

.premium-feature-item span {
    font-size: 0.78rem;
    line-height: 1.5;
    color: rgba(255, 255, 255, 0.55);
}

.premium-feature-icon {
    flex-shrink: 0;
    width: 32px;
    height: 32px;
    border-radius: 10px;
    background: var(--premium-charcoal);
    border: 1px solid var(--premium-gold);
    position: relative;
}

.premium-feature-icon::after {
    content: '';
    position: absolute;
    inset: 10px;
    border-radius: 2px;
    border: 2px solid var(--premium-gold);
    border-top: none;
    border-left: none;
    transform: rotate(45deg);
}

/* ── SECTION 3: Why Us ────────────────────────────── */

.premium-section--why {
    background: var(--premium-charcoal);
    border-top: 1px solid rgba(255, 255, 255, 0.06);
}

.premium-section--why .premium-spotlight {
    display: none;
}

.premium-spotlight {
    position: absolute;
    inset: 0;
    pointer-events: none;
    animation: premium-bg-drift 18s ease-in-out infinite alternate;
}

@keyframes premium-bg-drift {
    0% { opacity: 0.85; transform: scale(1); }
    100% { opacity: 1; transform: scale(1.04); }
}

.premium-why-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
}

.premium-why-card {
    display: flex;
    flex-direction: column;
    padding: 0;
    overflow: hidden;
    border-radius: 14px;
    background: var(--premium-slate);
    border: 1px solid var(--premium-border);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.25);
    transition: transform 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
}

.premium-why-card:nth-child(1) { border-top: 3px solid var(--premium-crimson); }
.premium-why-card:nth-child(2) { border-top: 3px solid var(--premium-gold); }
.premium-why-card:nth-child(3) { border-top: 3px solid var(--premium-crimson); }
.premium-why-card:nth-child(4) { border-top: 3px solid var(--premium-gold); }

.premium-why-card:hover {
    transform: translateY(-4px);
    border-color: rgba(201, 162, 39, 0.28);
    box-shadow: 0 14px 32px rgba(0, 0, 0, 0.28);
}

.premium-why-card__media {
    position: relative;
    height: 128px;
    overflow: hidden;
}

.premium-why-card__media img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.premium-why-card:hover .premium-why-card__media img {
    transform: scale(1.05);
}

.premium-why-card__media::after {
    content: '';
    position: absolute;
    inset: 0;
    background: rgba(11, 11, 16, 0.35);
    pointer-events: none;
}

.premium-why-badge {
    position: absolute;
    top: 10px;
    left: 10px;
    z-index: 2;
    padding: 4px 10px;
    border-radius: 6px;
    font-size: 9px;
    font-weight: 700;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--premium-gold);
    background: rgba(11, 11, 11, 0.85);
    border: 1px solid rgba(201, 162, 39, 0.35);
    backdrop-filter: blur(6px);
}

.premium-why-card__body {
    display: flex;
    flex-direction: column;
    flex: 1;
    padding: 14px 16px 16px;
}

.premium-why-num {
    display: none;
}

.premium-why-card h3 {
    margin: 0 0 6px;
    font-family: var(--font-heading, 'Inter', sans-serif);
    font-size: 0.92rem;
    font-weight: 700;
    line-height: 1.25;
    color: #fff;
}

.premium-why-card p {
    margin: 0 0 10px;
    font-size: 0.76rem;
    line-height: 1.55;
    color: rgba(255, 255, 255, 0.52);
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.premium-why-points {
    margin: 0;
    padding: 10px 0 0;
    list-style: none;
    border-top: 1px solid rgba(255, 255, 255, 0.06);
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
}

.premium-why-points li {
    padding: 4px 8px;
    border-radius: 6px;
    font-size: 0.68rem;
    line-height: 1.3;
    color: var(--premium-ink);
    background: var(--premium-gold);
    border: 1px solid #A88620;
}

.premium-why-points li::before {
    display: none;
}

.premium-why-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    flex-wrap: wrap;
    margin-top: 28px;
    padding: 16px 20px;
    border-radius: 12px;
    background: var(--premium-ink);
    border: 1px solid var(--premium-border);
    border-left: 4px solid var(--premium-crimson);
}

.premium-why-footer p {
    max-width: 52ch;
    margin: 0;
    font-size: 0.82rem;
    line-height: 1.5;
    color: rgba(255, 255, 255, 0.55);
}

/* ── SECTION 4: Timeline ──────────────────────────── */

.premium-section--timeline {
    background: #f7f7f8;
    color: var(--premium-ink);
}

.premium-timeline {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    margin: 0;
    padding: 0;
    list-style: none;
}

.premium-timeline-step {
    position: relative;
    padding: 24px 22px 22px;
    background: #fff;
    border: 1px solid rgba(17, 17, 21, 0.08);
    border-radius: var(--premium-radius);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.06);
    transition: transform 0.35s ease, box-shadow 0.35s ease;
}

.premium-timeline-step:hover {
    transform: translateY(-4px);
    box-shadow: 0 16px 40px rgba(0, 0, 0, 0.1);
}

.premium-timeline-num {
    display: grid;
    place-items: center;
    width: 48px;
    height: 48px;
    margin-bottom: 16px;
    border-radius: 50%;
    font-family: var(--font-heading, 'Inter', sans-serif);
    font-size: 0.85rem;
    font-weight: 800;
    color: #fff;
    background: linear-gradient(135deg, var(--premium-red), var(--premium-gold));
    box-shadow: 0 8px 20px rgba(230, 0, 0, 0.3);
}

.premium-timeline-step h3 {
    margin: 0 0 8px;
    font-family: var(--font-heading, 'Inter', sans-serif);
    font-size: 1rem;
    font-weight: 700;
}

.premium-timeline-step p {
    margin: 0;
    font-size: 0.85rem;
    line-height: 1.6;
    color: rgba(17, 17, 21, 0.62);
}

/* ── SECTION 5: Products ──────────────────────────── */

.premium-section--products {
    background: var(--premium-ink-2);
}

.premium-product-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}

.premium-product-card {
    border-radius: var(--premium-radius);
    overflow: hidden;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--premium-border);
    transition: transform 0.35s ease, box-shadow 0.35s ease;
}

.premium-product-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 20px 48px rgba(0, 0, 0, 0.4);
}

.premium-product-card__img {
    position: relative;
    aspect-ratio: 1;
    overflow: hidden;
}

.premium-product-card__img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s ease;
}

.premium-product-card:hover .premium-product-card__img img {
    transform: scale(1.06);
}

.premium-badge {
    position: absolute;
    top: 12px;
    left: 12px;
    z-index: 2;
    padding: 5px 10px;
    border-radius: 999px;
    font-size: 10px;
    font-weight: 700;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--premium-ink);
    background: var(--premium-gold);
}

.premium-product-overlay {
    position: absolute;
    inset: 0;
    display: grid;
    place-items: center;
    background: linear-gradient(to top, rgba(9, 9, 11, 0.85), rgba(9, 9, 11, 0.2));
    opacity: 0;
    transition: opacity 0.35s ease;
}

.premium-product-card:hover .premium-product-overlay {
    opacity: 1;
}

.premium-product-card__body {
    padding: 18px 18px 20px;
}

.premium-product-card__body h3 {
    margin: 0 0 6px;
    font-family: var(--font-heading, 'Inter', sans-serif);
    font-size: 0.95rem;
    font-weight: 700;
}

.premium-product-card__body p {
    margin: 0;
    font-size: 0.8rem;
    line-height: 1.55;
    color: rgba(255, 255, 255, 0.55);
}

/* ── SECTION 6: Materials ─────────────────────────── */

.premium-section--materials {
    background: var(--premium-ink);
    border-top: 1px solid rgba(255, 255, 255, 0.06);
}

.premium-materials-grid {
    display: grid;
    grid-template-columns: 1fr 1.1fr;
    gap: clamp(32px, 5vw, 56px);
    align-items: start;
}

.premium-checklist {
    margin: 24px 0 0;
    padding: 0;
    list-style: none;
}

.premium-checklist li {
    position: relative;
    padding: 8px 0 8px 22px;
    font-size: 0.9rem;
    color: rgba(255, 255, 255, 0.68);
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.premium-checklist li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    width: 8px;
    height: 8px;
    border-radius: 2px;
    background: var(--premium-gold);
    transform: translateY(-50%);
}

.premium-materials-cards {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.premium-material-card:nth-child(1) { border-left: 3px solid var(--premium-crimson); }
.premium-material-card:nth-child(2) { border-left: 3px solid var(--premium-gold); }
.premium-material-card:nth-child(3) { border-left: 3px solid var(--premium-crimson); }

.premium-material-card {
    display: grid;
    grid-template-columns: 120px 1fr;
    gap: 18px;
    align-items: center;
    padding: 14px;
    overflow: hidden;
}

.premium-material-card img {
    width: 120px;
    height: 90px;
    object-fit: cover;
    border-radius: 12px;
}

.premium-material-card h3 {
    margin: 0 0 6px;
    font-family: var(--font-heading, 'Inter', sans-serif);
    font-size: 0.95rem;
    font-weight: 700;
}

.premium-material-card p {
    margin: 0;
    font-size: 0.82rem;
    line-height: 1.55;
    color: rgba(255, 255, 255, 0.55);
}

/* ── SECTION 7: B2B ───────────────────────────────── */

.premium-section--b2b {
    background: var(--premium-slate);
    border-top: 1px solid rgba(255, 255, 255, 0.06);
}

.premium-b2b-inner {
    display: grid;
    grid-template-columns: 1fr 1.1fr;
    gap: clamp(32px, 5vw, 56px);
    align-items: center;
}

.premium-stats-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
}

.premium-stat-card {
    position: relative;
    padding: 28px 22px;
    border-radius: var(--premium-radius);
    background: var(--premium-glass);
    border: 1px solid var(--premium-border);
    text-align: center;
    transition: transform 0.3s ease;
}

.premium-stat-card:hover {
    transform: translateY(-4px);
}

.premium-counter {
    display: block;
    margin-bottom: 8px;
    font-family: var(--font-heading, 'Inter', sans-serif);
    font-size: clamp(2rem, 4vw, 2.75rem);
    font-weight: 800;
    line-height: 1;
    color: var(--premium-gold);
}

.premium-stat-card > span {
    display: block;
    font-size: 0.82rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: rgba(255, 255, 255, 0.75);
}

.premium-stat-card > em {
    display: block;
    margin-top: 6px;
    font-size: 0.75rem;
    font-style: normal;
    color: rgba(255, 255, 255, 0.42);
}

.premium-stat-card--text .premium-counter {
    font-size: 1.35rem;
    background: none;
    -webkit-background-clip: unset;
    background-clip: unset;
    color: var(--premium-gold);
}

/* ── SECTION 8: Customization tabs ────────────────── */

.premium-section--custom {
    background: var(--premium-charcoal);
    color: #fff;
    border-top: 1px solid rgba(255, 255, 255, 0.06);
}

.premium-section--custom .premium-title {
    color: #fff;
}

.premium-section--custom .premium-kicker {
    color: var(--premium-gold);
}

.premium-tabs-nav {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 20px;
    justify-content: center;
}

.premium-tab-btn {
    padding: 10px 18px;
    border: 1px solid var(--premium-border);
    border-radius: 999px;
    background: var(--premium-ink);
    font-family: var(--font-heading, 'Inter', sans-serif);
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: rgba(255, 255, 255, 0.62);
    cursor: pointer;
    transition:
        background 0.25s ease,
        border-color 0.25s ease,
        color 0.25s ease,
        box-shadow 0.25s ease;
}

.premium-tab-btn:hover,
.premium-tab-btn.is-active {
    background: var(--premium-crimson);
    border-color: #C40000;
    color: #fff;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.3);
}

.premium-tab-btn:nth-child(2).is-active,
.premium-tab-btn:nth-child(2):hover { background: var(--premium-gold); border-color: #A88620; color: var(--premium-ink); }
.premium-tab-btn:nth-child(4).is-active,
.premium-tab-btn:nth-child(4):hover { background: var(--premium-ink); border-color: var(--premium-gold); color: var(--premium-gold); }

.premium-tabs-panels {
    position: relative;
    min-height: 180px;
}

.premium-tab-panel {
    padding: 32px 36px;
    color: #fff;
    background: var(--premium-slate);
    border-color: var(--premium-border);
    opacity: 0;
    transform: translateY(12px);
    transition:
        opacity 0.4s ease,
        transform 0.4s ease;
    position: absolute;
    inset: 0;
    pointer-events: none;
}

.premium-tab-panel.is-active {
    opacity: 1;
    transform: translateY(0);
    position: relative;
    pointer-events: auto;
}

.premium-tab-panel h3 {
    margin: 0 0 10px;
    font-family: var(--font-heading, 'Inter', sans-serif);
    font-size: 1.25rem;
    font-weight: 700;
}

.premium-tab-panel p {
    margin: 0 0 16px;
    max-width: 58ch;
    font-size: 0.95rem;
    line-height: 1.65;
    color: rgba(255, 255, 255, 0.62);
}

/* ── SECTION 9: Testimonials ──────────────────────── */

.premium-section--testimonials {
    background: var(--premium-ink);
    border-top: 1px solid rgba(255, 255, 255, 0.06);
}

.premium-testimonial-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

.premium-testimonial-card {
    padding: 28px 26px;
    margin: 0;
}

.premium-testimonial-card p {
    margin: 0 0 18px;
    font-size: 0.95rem;
    line-height: 1.7;
    color: rgba(255, 255, 255, 0.78);
    font-style: italic;
}

.premium-testimonial-card footer {
    font-size: 0.78rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--premium-gold);
}

/* ── SECTION 10: Final CTA ────────────────────────── */

.premium-section--final-cta {
    background: var(--premium-crimson);
    padding-bottom: clamp(80px, 10vw, 120px);
    border-top: 4px solid var(--premium-gold);
}

.premium-cta-glow {
    display: none;
}

.premium-final-cta-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: clamp(28px, 4vw, 48px);
    align-items: center;
}

.premium-final-cta-media {
    border-radius: var(--premium-radius);
    overflow: hidden;
    aspect-ratio: 4 / 3;
    box-shadow: 0 24px 60px rgba(0, 0, 0, 0.45);
}

.premium-final-cta-media img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.8s ease;
}

.premium-final-cta-media:hover img {
    transform: scale(1.04);
}

.premium-final-cta-card {
    padding: clamp(28px, 4vw, 40px);
    background: var(--premium-ink);
    border-color: rgba(255, 255, 255, 0.12);
}

.premium-cta-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-top: 28px;
}

.premium-section--final-cta .premium-btn--primary {
    background: var(--premium-gold);
    color: var(--premium-ink);
    border-color: #A88620;
}

.premium-section--final-cta .premium-btn--primary:hover {
    background: #D4B23A;
    color: var(--premium-ink);
}

.premium-stat-card:nth-child(1) { border-top: 3px solid var(--premium-crimson); }
.premium-stat-card:nth-child(2) { border-top: 3px solid var(--premium-gold); }
.premium-stat-card:nth-child(3) { border-top: 3px solid var(--premium-crimson); }
.premium-stat-card:nth-child(4) { border-top: 3px solid var(--premium-gold); }

/* ── Responsive ─────────────────────────────────────── */

@media (max-width: 1100px) {
    .premium-cat-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .premium-why-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .premium-product-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .premium-timeline {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 900px) {
    .premium-oem-grid,
    .premium-materials-grid,
    .premium-b2b-inner,
    .premium-final-cta-grid {
        grid-template-columns: 1fr;
    }

    .premium-oem-media {
        max-height: 420px;
        aspect-ratio: 16 / 10;
    }

    .premium-feature-list {
        grid-template-columns: 1fr;
    }

    .premium-testimonial-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 640px) {
    .premium-container {
        width: calc(100% - 28px);
    }

    .premium-cat-grid,
    .premium-product-grid,
    .premium-timeline,
    .premium-stats-grid,
    .premium-why-grid {
        grid-template-columns: 1fr;
    }

    .premium-why-footer {
        flex-direction: column;
        align-items: flex-start;
    }

    .premium-why-footer .premium-btn {
        width: 100%;
    }

    .featured-curve-nav {
        width: 38px;
        height: 38px;
    }

    .featured-curve-panel__foot {
        flex-direction: column;
        align-items: stretch;
    }

    .featured-curve-dots {
        justify-content: center;
    }

    .featured-curve-actions {
        justify-content: center;
    }

    .featured-curve-actions a {
        flex: 1;
        text-align: center;
    }

    .featured-curve-deco {
        display: none;
    }

    .featured-curve-stage {
        height: clamp(300px, 52vw, 360px);
    }

    .featured-curve-card {
        width: min(250px, 72vw);
    }

    .featured-curve-card__img {
        height: clamp(200px, 48vw, 220px);
    }

    .featured-curve-card[data-pos="-1"] {
        transform: translate(-50%, -50%) translateX(-102%) translateZ(-30px) rotateY(32deg) scale(0.82);
    }

    .featured-curve-card[data-pos="1"] {
        transform: translate(-50%, -50%) translateX(102%) translateZ(-30px) rotateY(-32deg) scale(0.82);
    }

    .featured-curve-card[data-pos="0"] {
        transform: translate(-50%, -50%) translateZ(80px) rotateY(0deg) scale(1);
    }

    .premium-tabs-nav {
        justify-content: flex-start;
        overflow-x: auto;
        flex-wrap: nowrap;
        padding-bottom: 8px;
        -webkit-overflow-scrolling: touch;
    }

    .premium-tab-btn {
        flex-shrink: 0;
    }

    .premium-tab-panel {
        padding: 24px 20px;
    }

    .premium-cta-actions {
        flex-direction: column;
    }

    .premium-cta-actions .premium-btn {
        width: 100%;
    }

    .premium-material-card {
        grid-template-columns: 1fr;
    }

    .premium-material-card img {
        width: 100%;
        height: 140px;
    }
}

@media (prefers-reduced-motion: reduce) {
    [data-reveal],
    [data-reveal-item],
    .premium-glass-card,
    .premium-product-card,
    .premium-timeline-step,
    .premium-tab-panel,
    .premium-border-glow::before,
    .premium-spotlight,
    .premium-cta-glow,
    .featured-curve-card {
        transition: none !important;
        animation: none !important;
        opacity: 1 !important;
        transform: none !important;
    }
}