/**
 * PDP - Product Detail Page
 * Uses design tokens from tokens.css
 */

/* ==========================================================================
   LAYOUT
   ========================================================================== */

.pdp {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-8);
    margin: 0 auto;
    padding-block: var(--space-6);
}

@media (min-width: 768px) {
    .pdp {
        grid-template-columns: 1fr 400px;
        gap: var(--space-12);
    }
}

@media (min-width: 1024px) {
    .pdp {
        grid-template-columns: 13fr 7fr;  /* 65:35 gallery:info */
    }
}

/* ==========================================================================
   GALLERY
   ========================================================================== */

.pdp__gallery-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-2);
}

.pdp__gallery-item {
    margin: 0;
    aspect-ratio: 3 / 4;
    overflow: hidden;
    background: var(--surface-dim);
}

.pdp__gallery-item--full {
    grid-column: span 2;
}

.pdp__img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

/* ==========================================================================
   INFO PANEL
   ========================================================================== */

.pdp__info {
    position: sticky;
    top: var(--space-4);
    align-self: start;
}

@media (max-width: 767px) {
    .pdp__info {
        position: static;
    }
}

/* ==========================================================================
   TITLE & PRICE
   ========================================================================== */

.pdp__title {
    font-size: var(--text-2xl);
    font-weight: var(--font-normal);
    letter-spacing: var(--tracking-normal);
    line-height: var(--leading-tight);
    margin: 0 0 var(--space-2) 0;
    color: var(--on-surface);
}

.pdp__price {
    font-size: var(--text-2xl);
    font-weight: var(--font-medium);
    color: var(--on-surface);
    margin: 0 0 var(--space-3) 0;
}

.pdp__geo-notice {
    margin: 0 0 var(--space-4) 0;
    padding: var(--space-3);
    background-color: rgb(246, 245, 243);
    border-radius: 6px;
    font-size: var(--text-sm);
    line-height: var(--leading-relaxed);
}

.pdp__trust-lines {
    margin: var(--space-4) 0 0 0;
    padding: var(--space-3);
    background-color: rgb(246, 245, 243);
    border-radius: 6px;
    font-size: var(--text-sm);
    line-height: var(--leading-relaxed);
}

.pdp__trust-lines p {
    margin: 0 0 var(--space-1) 0;
    color: var(--on-surface-variant);
}

.pdp__trust-lines p:last-child {
    margin-bottom: 0;
}

/* ==========================================================================
   FORM
   ========================================================================== */

.pdp__form {
    display: flex;
    flex-direction: column;
    gap: var(--space-5);
}

.pdp__field {
    margin-bottom: var(--space-5);
    border: none;
    padding: 0;
}

.pdp__field legend {
    font-size: 0.8125rem; /* 13px - between tokens */
    font-weight: var(--font-medium);
    color: var(--on-surface);
    margin-bottom: var(--space-2);
    text-transform: uppercase;
    letter-spacing: var(--tracking-widest);
}

.pdp__size-header,
.pdp__color-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
}

.pdp__guide-link {
    font-size: var(--text-xs);
    font-weight: var(--font-normal);
    text-transform: none;
    letter-spacing: normal;
    color: var(--on-surface-variant);
    text-decoration: underline;
    background: none;
    border: none;
    padding: 0;
    cursor: pointer;
}

.pdp__guide-link:hover {
    color: var(--on-surface);
}

/* ==========================================================================
   COLOR SWATCHES
   ========================================================================== */

.pdp__swatches {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-2);
    min-height: 36px;
}

.pdp__swatch {
    width: 32px;
    height: 32px;
    border-radius: 0;
    border: var(--border-width-2) solid transparent;
    cursor: pointer;
    transition: all var(--duration-fast) var(--easing-standard);
    padding: 0;
}

.pdp__swatch:hover {
    transform: scale(1.1);
}

.pdp__swatch:focus-visible {
    outline: var(--border-width-2) solid var(--on-surface);
    outline-offset: 3px;
}

.pdp__swatch.is-selected {
    box-shadow: 0 0 0 2px var(--surface), 0 0 0 4px var(--on-surface);
}

/* "See All Colors" button (+X more) */
.pdp__swatch--more {
    background-color: var(--surface-container);
    border: var(--border-width-1) solid var(--outline-variant);
    display: flex;
    align-items: center;
    justify-content: center;
}

.pdp__swatch--more:hover {
    background-color: var(--surface-container-high);
    border-color: var(--outline);
}

.pdp__swatch-more-text {
    font-size: var(--text-xs);
    font-weight: var(--font-medium);
    color: var(--on-surface-variant);
}

/* ==========================================================================
   SIZE BUTTONS
   ========================================================================== */

.pdp__sizes {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-2);
    min-height: 48px;
}

.pdp__size-btn {
    min-width: 44px;
    min-height: 44px;
    padding: var(--space-2) var(--space-4);
    font-size: var(--text-sm);
    border: var(--border-width) solid var(--outline-variant);
    background: var(--surface);
    cursor: pointer;
    transition: all var(--duration-fast) var(--easing-standard);
}

.pdp__size-btn:hover:not(:disabled):not(.is-disabled) {
    border-color: var(--on-surface);
}

.pdp__size-btn:focus-visible {
    outline: var(--border-width-2) solid var(--on-surface);
    outline-offset: 3px;
}

.pdp__size-btn.is-selected {
    border-color: var(--on-surface);
    background: var(--on-surface);
    color: var(--surface);
}

.pdp__size-btn:disabled,
.pdp__size-btn.is-disabled {
    background: var(--surface-dim);
    color: var(--outline);
    cursor: not-allowed;
    text-decoration: line-through;
}

/* ==========================================================================
   ADD TO CART
   ========================================================================== */

.pdp__add-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    height: 52px;
    padding-inline: var(--space-8);
    font-size: 0.9375rem;
    font-weight: var(--font-medium);
    text-transform: uppercase;
    letter-spacing: var(--tracking-widest);
    background: var(--on-surface);
    color: var(--surface);
    border: none;
    cursor: pointer;
    transition: background var(--duration-normal) var(--easing-standard);
}

.pdp__add-btn:hover:not(:disabled) {
    background: var(--primary-hover);
}

.pdp__add-btn:disabled {
    background: var(--outline);
    cursor: not-allowed;
}

.pdp__spinner {
    width: 20px;
    height: 20px;
    border: var(--border-width-2) solid transparent;
    border-top-color: currentColor;
    border-radius: var(--radius-full);
    animation: spin 0.6s linear infinite;
    display: inline-block;
}

/* @keyframes spin - defined in base.css */

/* ==========================================================================
   TRUST BLOCK
   ========================================================================== */

.pdp__trust {
    margin: var(--space-6) 0;
    padding: var(--space-5) 0;
    border-top: var(--border-width) solid var(--outline-variant);
    border-bottom: var(--border-width) solid var(--outline-variant);
    min-height: 220px;
}

.pdp__trust-item {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    font-size: var(--text-sm);
    color: var(--on-surface);
    margin: var(--space-2) 0;
    line-height: var(--leading-snug);
}

.pdp__trust-item svg {
    flex-shrink: 0;
    color: var(--on-surface-variant);
}

/* ==========================================================================
   DESCRIPTION & ACCORDIONS
   ========================================================================== */

.pdp__short-desc {
    margin-top: var(--space-6);
    font-size: var(--text-base);
    line-height: var(--leading-relaxed);
    color: var(--on-surface-variant);
}

.pdp__short-desc p {
    margin: 0 0 var(--space-3);
}

.pdp__short-desc p:last-child {
    margin-bottom: 0;
}

.pdp__description {
    margin-top: var(--space-5);
}

.pdp__description > p:first-child {
    font-size: 0.9375rem;
    line-height: 1.8;
    color: var(--on-surface);
    margin: 0 0 var(--space-6) 0;
}

/* Accordions */
.pdp__description details {
    border-bottom: var(--border-width) solid var(--outline-variant);
}

.pdp__description details:first-of-type {
    border-top: var(--border-width) solid var(--outline-variant);
}

.pdp__description summary {
    padding: var(--space-4) 0;
    font-size: 0.8125rem;
    font-weight: var(--font-semibold);
    text-transform: uppercase;
    letter-spacing: var(--tracking-widest);
    cursor: pointer;
    list-style: none;
    display: flex;
    justify-content: space-between;
    align-items: center;
    color: var(--on-surface);
    user-select: none;
    min-height: 44px;
}

.pdp__description summary::-webkit-details-marker {
    display: none;
}

.pdp__description summary::after {
    content: '+';
    font-size: var(--text-xl);
    font-weight: var(--font-light);
    color: var(--on-surface);
}

.pdp__description details[open] summary::after {
    content: '−';
}

.pdp__description details[open] > ul,
.pdp__description details[open] > p,
.pdp__description details[open] > div {
    animation: slideDown var(--duration-slow) var(--easing-decelerate) forwards;
}

@keyframes slideDown {
    from {
        opacity: 0;
        max-height: 0;
    }
    to {
        opacity: 1;
        max-height: 600px;
    }
}

.pdp__description details > ul,
.pdp__description details > p {
    font-size: 0.9375rem;
    line-height: 1.75;
    color: var(--on-surface-variant);
    margin: 0;
    padding: 0 0 var(--space-4) 0;
}

.pdp__description ul {
    padding-left: 1.125rem;
    list-style: disc;
}

.pdp__description li {
    margin-bottom: var(--space-1);
}

/* H3 sections in description */
.pdp__description h3 {
    font-size: 0.8125rem;
    font-weight: var(--font-semibold);
    text-transform: uppercase;
    letter-spacing: var(--tracking-widest);
    margin: var(--space-8) 0 var(--space-3) 0;
    color: var(--on-surface);
}

.pdp__description h3:first-child {
    margin-top: 0;
}

/* CSS-only Accordions (details/summary) */
.pdp__accordions {
    margin-top: var(--space-6);
}

.pdp__accordion {
    border-bottom: var(--border-width) solid var(--outline-variant);
}

.pdp__accordion:first-child {
    border-top: var(--border-width) solid var(--outline-variant);
}

.pdp__accordion summary {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-4) 0;
    font-weight: var(--font-semibold);
    text-transform: uppercase;
    letter-spacing: var(--tracking-widest);
    color: var(--on-surface);
    cursor: pointer;
    list-style: none;
    min-height: 44px;
    user-select: none;
}

.pdp__accordion summary::-webkit-details-marker {
    display: none;
}

.pdp__accordion summary::after {
    content: '+';
    font-weight: inherit;
    color: var(--on-surface);
}

.pdp__accordion[open] summary::after {
    content: '−';
}

.pdp__accordion summary:hover {
    color: var(--on-surface-variant);
}

.pdp__accordion summary:focus-visible {
    outline: var(--border-width-2) solid var(--on-surface);
    outline-offset: -2px;
}

.pdp__accordion-content {
    padding-bottom: var(--space-4);
}

.pdp__accordion-content p {
    font-size: 0.9375rem;
    line-height: 1.75;
    color: var(--on-surface-variant);
    margin: 0 0 var(--space-3) 0;
}

.pdp__accordion-content p:last-child {
    margin-bottom: 0;
}

.pdp__accordion-content ul {
    list-style: none;
    padding-left: 0;
    margin: 0;
}

.pdp__accordion-content li::before {
    content: '- ';
}

.pdp__accordion-content li {
    font-size: 0.9375rem;
    line-height: 1.75;
    color: var(--on-surface-variant);
    margin-bottom: var(--space-1);
}

.pdp__accordion-content dl {
    margin: 0;
}

.pdp__accordion-content .pdp__fact {
    display: flex;
    flex-direction: column;
    gap: var(--space-1);
    padding: var(--space-3) 0;
    border-bottom: var(--border-width) solid var(--outline-variant);
}

.pdp__accordion-content .pdp__fact:last-child {
    border-bottom: none;
    padding-bottom: 0;
}

.pdp__accordion-content .pdp__fact dt {
    font-size: 0.8125rem;
    font-weight: var(--font-medium);
    text-transform: uppercase;
    letter-spacing: var(--tracking-wide);
    color: var(--on-surface);
}

.pdp__accordion-content .pdp__fact dd {
    font-size: 0.9375rem;
    line-height: 1.75;
    color: var(--on-surface-variant);
    margin: 0;
}

/* ==========================================================================
   HIGHLIGHTS
   ========================================================================== */

.pdp__highlights {
    margin-top: var(--space-8);
    padding-top: var(--space-6);
    border-top: var(--border-width) solid var(--outline-variant);
}

.pdp__highlights h3 {
    font-size: 0.8125rem;
    font-weight: var(--font-semibold);
    text-transform: uppercase;
    letter-spacing: var(--tracking-widest);
    margin: 0 0 var(--space-4) 0;
    color: var(--on-surface);
}

.pdp__highlights ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.pdp__highlights li {
    position: relative;
    padding-left: var(--space-5);
    margin-bottom: var(--space-2);
    font-size: var(--text-sm);
    line-height: var(--leading-relaxed);
    color: var(--on-surface-variant);
}

.pdp__highlights li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--on-surface);
}

/* ==========================================================================
   PRODUCT FACTS
   ========================================================================== */

.pdp__facts {
    margin-top: var(--space-6);
    padding-top: var(--space-6);
    border-top: var(--border-width) solid var(--outline-variant);
}

.pdp__facts h3 {
    font-size: 0.8125rem;
    font-weight: var(--font-semibold);
    text-transform: uppercase;
    letter-spacing: var(--tracking-widest);
    margin: 0 0 var(--space-4) 0;
    color: var(--on-surface);
}

.pdp__facts dl {
    margin: 0;
}

.pdp__fact {
    display: flex;
    justify-content: space-between;
    padding: var(--space-2) 0;
    border-bottom: var(--border-width) solid var(--outline-variant);
    font-size: var(--text-sm);
}

.pdp__fact:last-child {
    border-bottom: none;
}

.pdp__fact dt {
    color: var(--on-surface-variant);
    font-weight: var(--font-normal);
}

.pdp__fact dd {
    color: var(--on-surface);
    font-weight: var(--font-medium);
    margin: 0;
    text-align: right;
}

/* ==========================================================================
   CARE INSTRUCTIONS
   ========================================================================== */

.pdp__care {
    margin-top: var(--space-6);
    padding-top: var(--space-6);
    border-top: var(--border-width) solid var(--outline-variant);
}

.pdp__care h3 {
    font-size: 0.8125rem;
    font-weight: var(--font-semibold);
    text-transform: uppercase;
    letter-spacing: var(--tracking-widest);
    margin: 0 0 var(--space-4) 0;
    color: var(--on-surface);
}

.pdp__care ul {
    list-style: disc;
    padding-left: 1.125rem;
    margin: 0;
}

.pdp__care li {
    margin-bottom: var(--space-2);
    font-size: var(--text-sm);
    line-height: var(--leading-relaxed);
    color: var(--on-surface-variant);
}

/* ==========================================================================
   SIZING NOTE
   ========================================================================== */

.pdp__sizing {
    margin-top: var(--space-6);
    padding: var(--space-4);
    background: var(--surface-dim);
    border-radius: var(--radius-sm);
}

.pdp__sizing p {
    margin: 0;
    font-size: var(--text-sm);
    font-style: italic;
    color: var(--on-surface-variant);
}

/* ==========================================================================
   UTILITIES
   ========================================================================== */

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

/* Focus styles */
*:focus-visible {
    outline: var(--border-width-2) solid var(--on-surface);
    outline-offset: 2px;
}

/* ==========================================================================
   RESPONSIVE
   ========================================================================== */

@media (max-width: 768px) {
    .pdp__title {
        font-size: var(--text-xl);
    }

    .pdp__price {
        font-size: var(--text-xl);
    }

    .pdp__trust {
        font-size: 0.8125rem;
        min-height: 200px;
    }

    .pdp__swatches {
        min-height: 36px;
    }

    .pdp__sizes {
        min-height: 48px;
    }
}

/* ==========================================================================
   SELECTION WARNING (floating above button)
   ========================================================================== */

.pdp__add-wrap {
    position: relative;
}

.pdp__selection-warning {
    position: absolute;
    bottom: calc(100% + 10px);
    left: 50%;
    transform: translateX(-50%);
    background: #fef3cd;
    border: 1px solid #f9d77e;
    padding: var(--space-3) var(--space-4);
    font-size: var(--text-sm);
    color: #664d03;
    white-space: nowrap;
    z-index: 10;
}

.pdp__selection-warning::after {
    content: '';
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%);
    border: 6px solid transparent;
    border-top-color: #f9d77e;
}

.pdp__selection-warning::before {
    content: '';
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%);
    margin-top: -1px;
    border: 5px solid transparent;
    border-top-color: #fef3cd;
    z-index: 1;
}