/* ==================================================
   01. RESET & ISOLATION
================================================== */

.product-page *,
.product-page *::before,
.product-page *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

.product-page video {
    display: block;
    width: 100%;
}

.product-page a {
    color: inherit;
    text-decoration: none;
}

.product-page button {
    border: none;
    background: none;
    cursor: pointer;
    font: inherit;
}

.product-page ul,
.product-page ol {
    list-style: none;
    margin: 0;
    padding: 0;
}

.product-page li {
    list-style: none;
}

.product-page.rte ul li,
.rte .product-page ul li,
.product-page ul li {
    list-style: none !important;
}

.product-page ul li::marker {
    content: "" !important;
}
/* ==================================================
   02. BASE & VARIABLES
================================================== */

.product-page {
    /* Layout */
    --container-width: 1240px;
    --content-width: 580px;
    --section-spacing: 100px;
    --fullscreen-height: clamp(800px, 100vh, 1200px);

    /* Colors */
    --c-bg: #ffffff;
    --c-bg-alt: #f5f5f7;
    --c-bg-dark: #000000;
    
    --c-text-main: #1d1d1f;
    --c-text-muted: #86868b;
    --c-text-light: #f5f5f7;
    --c-text-light-muted: #d5d5db;
    
    --c-accent: #bb181e;
    --c-border: rgba(0, 0, 0, 0.04);
    
    /* Typography */
    --font-main: -apple-system, BlinkMacSystemFont, "SF Pro Display", "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    
    --fs-display: clamp(4.5rem, 8vw, 7.5rem);
    --fs-h1: clamp(3.5rem, 7vw, 6rem);
    --fs-h2: clamp(2.5rem, 5vw, 4rem);
    --fs-h3: clamp(1.5rem, 3vw, 2rem);
    --fs-card-title: 1.25rem;
    --fs-lead: clamp(1.25rem, 2.5vw, 1.5rem);
    --fs-body: 1.5rem;
    --fs-small: 1.25rem;

    /* Components & Spacing */
    --radius-lg: 32px;
    --radius-md: 24px;
    --gap-sm: 24px;
    --gap-md: 40px;
    --gap-lg: 120px;

    /* Effects */
    --transition-slow: 0.8s cubic-bezier(0.16, 1, 0.3, 1);
    --transition-fast: 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    --shadow-hover: 0 20px 40px rgba(0, 0, 0, 0.08);
    
    /* Overlays */
    --overlay-dark: linear-gradient(180deg, rgba(0,0,0,0) 0%, rgba(0,0,0,0.2) 40%, rgba(0,0,0,0.85) 100%);
    --overlay-side: linear-gradient(90deg, rgba(0,0,0,0.9) 0%, rgba(0,0,0,0.4) 50%, rgba(0,0,0,0) 100%);

    /* Base Styling */
    scroll-behavior: smooth;
    font-family: var(--font-main);
    font-size: var(--fs-body);
    font-weight: 400;
    line-height: 1.6;
    color: var(--c-text-main);
    background: var(--c-bg);
    letter-spacing: -0.01em;
    width: 100%;
    overflow: hidden;
    overflow-x: hidden;
}

.product-page h1, 
.product-page h2, 
.product-page h3, 
.product-page h4 {
    font-weight: 600;
    color: inherit;
    letter-spacing: -0.03em;
}

.product-page p {
    color: inherit;
}

/* ==================================================
   03. LAYOUT & UTILITIES
================================================== */

.product-page .container {
    width: 100%;
    max-width: var(--container-width);
    margin-inline: auto;
    padding-inline: 40px;
}

.product-page .section-spacing {
    padding-block: var(--section-spacing);
}

.product-page .fullscreen-section {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: var(--fullscreen-height);
    overflow: hidden;
    background: var(--c-bg-dark);
    color: var(--c-text-light);
}

/* Shared Absolute Media */
.product-page .hero__image, 
.product-page .hero__overlay,
.product-page .anti-twist__video, 
.product-page .anti-twist__overlay,
.product-page .eyelets__bg, 
.product-page .eyelets__overlay,
.product-page .outdoors__media, 
.product-page .outdoors__overlay {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
}

/* Shared Object Fit */
.product-page .hero__image, 
.product-page .anti-twist__video, 
.product-page .eyelets__bg, 
.product-page .outdoors__media img,
.product-page .feature-card img, 
.product-page .ergonomic__image img,
.product-page .specifications__image img {
    object-fit: cover;
    width: 100%;
}

/* Shared Z-Index for Content */
.product-page .hero__container,
.product-page .anti-twist__content,
.product-page .eyelets .container,
.product-page .outdoors__content {
    position: relative;
    z-index: 2;
}

/* ==================================================
   04. TYPOGRAPHY
================================================== */

/* Eyebrows */
.product-page .section-header__eyebrow,
.product-page .hero__eyebrow,
.product-page .anti-twist__eyebrow,
.product-page .eyelets__eyebrow,
.product-page .outdoors__eyebrow {
    display: block;
    margin-bottom: 24px;
    font-size: var(--fs-small);
    font-weight: 700;
    letter-spacing: 0.2em;
    text-transform: uppercase;
}

.product-page .section-header__eyebrow { 
    color: var(--c-accent); 
}

.product-page .hero__eyebrow, 
.product-page .anti-twist__eyebrow, 
.product-page .outdoors__eyebrow, 
.product-page .eyelets__eyebrow { 
    color: var(--c-text-light-muted); 
}

/* Section Titles */
.product-page .section-header__title {
    font-size: var(--fs-h2);
    line-height: 1.05;
    letter-spacing: -0.04em;
    margin-bottom: var(--gap-md);
}

/* Display Titles (Dark Sections) */
.product-page .anti-twist__content h2,
.product-page .eyelets h2,
.product-page .outdoors h2 {
    margin-bottom: 32px;
    font-size: var(--fs-display);
    line-height: 0.95;
    letter-spacing: -0.04em;
}

/* Lead Paragraphs */
.product-page .hero__description,
.product-page .anti-twist__content p,
.product-page .eyelets p,
.product-page .outdoors p {
    font-size: var(--fs-lead);
    line-height: 1.5;
    color: var(--c-text-light-muted);
    font-weight: 400;
}

/* Muted Standard Text */
.product-page .feature-card__content p,
.product-page .ergonomic__content p,
.product-page .spec-card p,
.product-page .spec-card ul {
    color: var(--c-text-muted);
    line-height: 1.6;
    font-size: var(--fs-body);
}

/* ==================================================
   05. SECTION HEADER
================================================== */

.product-page .section-header {
    margin-bottom: 80px;
    text-align: center;
    max-width: 800px;
    margin-inline: auto;
}

/* ==================================================
   06. HERO
================================================== */

.product-page .hero {
    position: relative;
    display: flex;
    align-items: flex-end;
    min-height: 100vh;
    overflow: hidden;
    background: var(--c-bg-dark);
}

.product-page .hero__overlay {
    background: var(--overlay-dark);
    display: block !important;
}

.product-page .hero__container {
    width: 100%;
    max-width: var(--container-width);
    margin-inline: auto;
    padding-inline: 40px;
    padding-bottom: 100px;
    text-align: center;
}

.product-page .hero__content {
    max-width: 800px;
    margin-inline: auto;
    color: var(--c-text-light);
}

.product-page .hero__title {
    margin-bottom: 32px;
    font-size: var(--fs-h1);
    line-height: 1;
    letter-spacing: -0.05em;
}

.product-page .hero__title span {
    display: block;
    background: linear-gradient(90deg, #fff, #a1a1a6);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.product-page .hero__description {
    max-width: 640px;
    margin-inline: auto;
}

/* ==================================================
   07. FEATURE GALLERY
================================================== */

.product-page .feature-gallery {
    background: var(--c-bg);
}

.product-page .feature-gallery__grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--gap-sm);
}

.product-page .feature-card {
    display: flex;
    flex-direction: column;
    background: var(--c-bg-alt);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: transform var(--transition-slow), box-shadow var(--transition-slow);
}

.product-page .feature-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-hover);
}

.product-page .feature-card img {
    aspect-ratio: 4/3;
    transition: transform var(--transition-slow);
}

.product-page .feature-card:hover img {
    transform: scale(1.05);
}

.product-page .feature-card__content {
    display: flex;
    flex-direction: column;
    gap: 16px;
    padding: 48px 40px;
    flex: 1;
}

.product-page .feature-card__content h3 {
    font-size: var(--fs-card-title);
    line-height: 1.2;
}

/* ==================================================
   08. ERGONOMIC
================================================== */

.product-page .ergonomic {
    background: var(--c-bg);
}

.product-page .ergonomic__grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--gap-lg) var(--gap-md);
    align-items: center;
}

.product-page .ergonomic__content {
    max-width: 480px;
    margin-inline: auto;
}

.product-page .ergonomic__content h3 {
    margin-bottom: 24px;
    font-size: var(--fs-h3);
    line-height: 1.2;
}

.product-page .ergonomic__image {
    overflow: hidden;
    border-radius: var(--radius-lg);
    background: var(--c-bg-alt);
}

.product-page .ergonomic__image img {
    height: 100%;
    transition: transform var(--transition-slow);
}

.product-page .ergonomic__image:hover img {
    transform: scale(1.03);
}

/* ==================================================
   09. ANTI-TWIST
================================================== */

.product-page .anti-twist__overlay {
    background: var(--overlay-dark);
    display: block !important;
}

.product-page .anti-twist__content {
    width: 100%;
    max-width: 1000px;
    text-align: center;
    padding-inline: 40px;
    margin-top: 20vh;
}

.product-page .anti-twist__content p {
    max-width: 680px;
    margin-inline: auto;
}

.product-page .anti-twist__points {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 40px;
    margin-top: 80px;
}

.product-page .anti-twist__point {
    padding-top: 32px;
    border-top: 1px solid rgba(255, 255, 255, 0.15);
    text-align: center;
    font-size: var(--fs-body);
    color: var(--c-text-light-muted);
}

.product-page .anti-twist__point span {
    display: block;
    margin-bottom: 16px;
    color: var(--c-accent);
    font-size: 3.5rem;
    font-weight: 300;
    line-height: 1;
    letter-spacing: -0.04em;
}

/* ==================================================
   10. STRAP EYELETS
================================================== */

.product-page .eyelets__overlay {
    background: var(--overlay-side);
    display: block !important;
}

.product-page .eyelets__content {
    max-width: 520px;
}

.product-page .eyelets p {
    margin-bottom: 48px;
}

.product-page .eyelets ul {
    display: grid;
    gap: 20px;
}

.product-page .eyelets li {
    position: relative;
    padding-left: 32px;
    font-size: 1.125rem;
    line-height: 1.6;
    color: var(--c-text-light-muted);
}

.product-page .eyelets li::before {
    content: "";
    position: absolute;
    left: 0;
    top: 0.5em;
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--c-accent);
}

/* ==================================================
   11. OUTDOORS
================================================== */

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

.product-page .outdoors__media img {
    height: 100%;
    filter: brightness(0.95);
    transition: transform var(--transition-slow), filter var(--transition-slow);
}

.product-page .outdoors:hover .outdoors__media img {
    transform: scale(1.05);
    filter: brightness(1);
}

.product-page .outdoors__overlay {
    background: linear-gradient(180deg, rgba(0,0,0,0) 0%, rgba(0,0,0,0.85) 100%);
    display: block !important;
}

.product-page .outdoors__content {
    width: 100%;
    max-width: 800px;
    margin: auto auto 100px auto;
    text-align: center;
    padding-inline: 40px;
}

.product-page .outdoors p {
    max-width: 640px;
    margin: 0 auto 24px;
}

/* ==================================================
   12. SPECIFICATIONS
================================================== */

.product-page .specifications {
    background: var(--c-bg);
}

.product-page .specifications__grid {
    display: grid;
    grid-template-columns: 1.25fr 0.75fr;
    gap: var(--gap-lg);
    align-items: center;
}

.product-page .specifications__image {
    display: flex;
    align-items: center;
    justify-content: center;
}

.product-page .specifications__image img {
    transform: scale(1.25);
    mix-blend-mode: multiply;
    filter: brightness(1.06) contrast(1.05);
}

.product-page .specifications__cards {
    display: grid;
    gap: var(--gap-sm);
}

.product-page .spec-card {
    display: grid;
    grid-template-columns: 55px 1fr;
    gap: 10px;
    align-items: start;
    padding: 20px;
    background: var(--c-bg-alt);
    border-radius: var(--radius-md);
    transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

.product-page .spec-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-hover);
    background: #ffffff;
}

.product-page .spec-card img {
    width: 32px;
    opacity: 0.8;
}

.product-page .spec-card h3 {
    margin-bottom: 12px;
    font-size: 1.25rem;
    line-height: 1.2;
}

.product-page .spec-card li {
    position: relative;
    padding-left: 16px;
    font-size: 1.125rem;
    line-height: 1.6;
}

.product-page .spec-card li::before {
    content: "";
    position: absolute;
    left: 0;
    top: 0.5em;
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--c-accent);
}

.product-page .spec-card strong {
    color: var(--c-text-main);
    font-weight: 500;
}

/* ==================================================
   13. RESPONSIVE
================================================== */

@media (max-width: 1024px) {
    .product-page {
        --section-spacing: 80px;
        --gap-lg: 60px;
    }

    .product-page .container {
        padding-inline: 32px;
    }

    .product-page .feature-gallery__grid {
        grid-template-columns: 1fr;
    }

    .product-page .ergonomic__grid,
    .product-page .specifications__grid {
        grid-template-columns: 1fr;
    }
    
    .product-page .ergonomic__content {
        max-width: 100%;
        text-align: center;
    }

    .product-page .outdoors__media {
        grid-template-columns: 1fr;
    }

    .product-page .outdoors__media img {
        height: 50vh;
    }
}

@media (max-width: 768px) {
    .product-page {
        --section-spacing: 60px;
        --fullscreen-height: 85vh;
    }

    .product-page .container {
        padding-inline: 24px;
    }

    .product-page .hero__container {
        padding-bottom: 60px;
    }

    .product-page .section-header {
        margin-bottom: 48px;
        text-align: left;
    }

    .product-page .feature-card__content {
        padding: 32px 24px;
    }

    .product-page .ergonomic__content {
        text-align: left;
    }

    .product-page .anti-twist__content {
        margin-top: 0;
        text-align: left;
    }

    .product-page .anti-twist__points {
        grid-template-columns: 1fr;
        gap: 32px;
        margin-top: 48px;
    }

    .product-page .anti-twist__point {
        padding-top: 24px;
    }

    .product-page .eyelets__overlay {
        background: linear-gradient(180deg, rgba(0,0,0,0) 0%, rgba(0,0,0,0.4) 40%, rgba(0,0,0,0.9) 100%);
    }

    .product-page .eyelets__content {
        margin-top: 40vh;
    }

    .product-page .outdoors__content {
        text-align: left;
        margin-bottom: 60px;
    }

    .product-page .spec-card {
        grid-template-columns: 1fr;
        gap: 24px;
        padding: 32px 24px;
    }
}