/* ==========================================================================
   SHADE MATCHER — Luxury Shade Matching Tool
   ========================================================================== */

/* ── Hero ───────────────────────────────────────────────────────────────── */
.sm-hero {
    position: relative;
    min-height: 70vh;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    background: linear-gradient(135deg, #fdf6f0 0%, #f5ebe3 40%, #ecddd0 100%);
}

.sm-hero__bg {
    position: absolute;
    inset: 0;
    pointer-events: none;
    overflow: hidden;
}

.sm-hero__swatches {
    position: absolute;
    bottom: -30%;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 0;
    width: 180%;
    height: 100%;
}

.sm-hero__swatch {
    flex: 1;
    background: var(--hex);
    opacity: 0.12;
    transform: skewX(-12deg) scaleY(1.4);
    animation: smSwatchFloat 6s ease-in-out infinite alternate;
    animation-delay: var(--d);
}

@keyframes smSwatchFloat {
    from { transform: skewX(-12deg) scaleY(1.4) translateY(0); }
    to   { transform: skewX(-12deg) scaleY(1.4) translateY(-8%); }
}

.sm-hero__content {
    position: relative;
    z-index: 2;
    text-align: center;
    padding: var(--spacing-3xl) var(--spacing-xl);
    max-width: 680px;
}

.sm-hero__eyebrow {
    display: inline-block;
    font-family: var(--font-body);
    font-weight: 500;
    font-size: 0.7rem;
    letter-spacing: 0.25em;
    text-transform: uppercase;
    color: var(--color-text-light);
    margin-bottom: var(--spacing-md);
}

.sm-hero__title {
    font-family: var(--font-display);
    font-weight: 300;
    font-size: clamp(3rem, 7vw, 5.5rem);
    line-height: 1;
    color: var(--color-text);
    margin-bottom: var(--spacing-lg);
    letter-spacing: -0.02em;
}

.sm-hero__subtitle {
    font-family: var(--font-body);
    font-weight: 300;
    font-size: 1.05rem;
    line-height: 1.7;
    color: var(--color-text-light);
    margin-bottom: var(--spacing-2xl);
    max-width: 480px;
    margin-inline: auto;
}

.sm-hero__cta {
    display: inline-flex;
    align-items: center;
    gap: 0.6rem;
    background: var(--color-text);
    color: var(--color-white);
    font-family: var(--font-body);
    font-weight: 400;
    font-size: 0.8rem;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    padding: 1.1rem 2.8rem;
    border: none;
    cursor: pointer;
    transition: var(--transition-smooth);
}

.sm-hero__cta:hover {
    background: var(--color-gold);
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(85, 0, 0, 0.15);
}

.sm-hero__cta svg {
    transition: transform 0.3s ease;
    display: inline-block;
}

.sm-hero__cta:hover svg {
    transform: translateX(4px);
}

/* ── Wizard Container ───────────────────────────────────────────────────── */
.sm-wizard {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: var(--spacing-2xl) var(--spacing-xl);
    min-height: 60vh;
}

/* ── Progress ───────────────────────────────────────────────────────────── */
.sm-progress {
    max-width: 560px;
    margin: 0 auto var(--spacing-2xl);
}

.sm-progress__bar {
    height: 2px;
    background: var(--color-cream);
    border-radius: 2px;
    overflow: hidden;
    margin-bottom: var(--spacing-md);
}

.sm-progress__fill {
    height: 100%;
    background: var(--color-text);
    border-radius: 2px;
    width: 25%;
    transition: width 0.6s cubic-bezier(0.25, 0.1, 0.25, 1);
}

.sm-progress__labels {
    display: flex;
    justify-content: space-between;
}

.sm-progress__label {
    font-family: var(--font-body);
    font-size: 0.7rem;
    font-weight: 400;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--color-mid-gray);
    transition: color 0.3s ease;
}

.sm-progress__label.is-active {
    color: var(--color-text);
    font-weight: 500;
}

.sm-progress__label.is-complete {
    color: var(--color-text-light);
}

/* ── Step Container ─────────────────────────────────────────────────────── */
.sm-step {
    animation: smFadeIn 0.5s ease;
}

@keyframes smFadeIn {
    from {
        opacity: 0;
        transform: translateY(16px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.sm-step__inner {
    max-width: 960px;
    margin: 0 auto;
}

.sm-step__head {
    margin-bottom: var(--spacing-xl);
}

.sm-step__title {
    font-family: var(--font-display);
    font-weight: 400;
    font-size: clamp(1.6rem, 3vw, 2.2rem);
    color: var(--color-text);
    margin-bottom: var(--spacing-xs);
}

.sm-step__desc {
    font-family: var(--font-body);
    font-weight: 300;
    font-size: 0.95rem;
    color: var(--color-text-light);
}

.sm-step__desc strong {
    font-weight: 500;
    color: var(--color-text);
}

/* ── Back Button ────────────────────────────────────────────────────────── */
.sm-back {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    background: none;
    border: none;
    cursor: pointer;
    font-family: var(--font-body);
    font-size: 0.8rem;
    font-weight: 400;
    color: var(--color-text-light);
    letter-spacing: 0.05em;
    padding: 0;
    margin-bottom: var(--spacing-lg);
    transition: var(--transition-fast);
}

.sm-back svg {
    width: 18px;
    height: 18px;
    transition: transform 0.2s ease;
}

.sm-back:hover {
    color: var(--color-text);
}

.sm-back:hover svg {
    transform: translateX(-3px);
}

/* ── Search ──────────────────────────────────────────────────────────────── */
.sm-search {
    position: relative;
    margin-bottom: var(--spacing-lg);
}

.sm-search__icon {
    position: absolute;
    left: 1rem;
    top: 50%;
    transform: translateY(-50%);
    width: 18px;
    height: 18px;
    color: var(--color-mid-gray);
    pointer-events: none;
}

.sm-search__input {
    width: 100%;
    padding: 0.9rem 2.8rem 0.9rem 2.8rem;
    background: #faf6f3;
    border: 1px solid transparent;
    font-family: var(--font-body);
    font-size: 0.95rem;
    font-weight: 300;
    color: var(--color-text);
    transition: var(--transition-fast);
    outline: none;
}

.sm-search__input::placeholder {
    color: var(--color-mid-gray);
}

.sm-search__input:focus {
    border-color: var(--color-text);
    background: var(--color-white);
}

.sm-search__clear {
    position: absolute;
    right: 0.8rem;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px;
    color: var(--color-mid-gray);
    transition: color 0.2s ease;
}

.sm-search__clear:hover {
    color: var(--color-text);
}

.sm-search__clear svg {
    width: 16px;
    height: 16px;
}

/* ── Alphabet Index ──────────────────────────────────────────────────────── */
.sm-alpha {
    display: flex;
    flex-wrap: wrap;
    gap: 0;
    margin-bottom: var(--spacing-xl);
    border-bottom: 1px solid var(--color-cream);
    padding-bottom: var(--spacing-sm);
}

.sm-alpha__letter {
    background: none;
    border: none;
    cursor: pointer;
    font-family: var(--font-body);
    font-weight: 500;
    font-size: 0.8rem;
    color: var(--color-text);
    padding: 0.4rem 0.65rem;
    transition: var(--transition-fast);
    letter-spacing: 0.02em;
}

.sm-alpha__letter:hover {
    color: var(--color-gold);
}

.sm-alpha__letter.is-disabled {
    color: var(--color-cream);
    cursor: default;
    pointer-events: none;
}

.sm-alpha__letter.is-active {
    color: var(--color-gold);
    border-bottom: 2px solid var(--color-gold);
}

/* ── Brand List ──────────────────────────────────────────────────────────── */
.sm-brands {
    display: grid;
    gap: 0;
}

.sm-brands__group {
    display: grid;
    grid-template-columns: 60px 1fr;
    gap: 0;
    border-bottom: 1px solid #f0ebe7;
    padding: var(--spacing-lg) 0;
}

.sm-brands__letter {
    font-family: var(--font-body);
    font-weight: 600;
    font-size: 1.1rem;
    color: var(--color-text);
    padding-top: 0.15rem;
}

.sm-brands__list {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: var(--spacing-xs) var(--spacing-xl);
}

.sm-brands__item {
    background: none;
    border: none;
    cursor: pointer;
    text-align: left;
    font-family: var(--font-body);
    font-weight: 300;
    font-size: 0.95rem;
    color: var(--color-text);
    padding: 0.55rem 0;
    transition: var(--transition-fast);
    position: relative;
}

.sm-brands__item::after {
    content: '';
    position: absolute;
    bottom: 0.35rem;
    left: 0;
    width: 0;
    height: 1px;
    background: var(--color-text);
    transition: width 0.3s ease;
}

.sm-brands__item:hover {
    color: var(--color-gold);
}

.sm-brands__item:hover::after {
    width: 100%;
    background: var(--color-gold);
}

.sm-brands__empty {
    grid-column: 1 / -1;
    text-align: center;
    padding: var(--spacing-2xl);
    color: var(--color-mid-gray);
    font-size: 0.95rem;
}

/* ── Product Cards ───────────────────────────────────────────────────────── */
.sm-products {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    gap: var(--spacing-lg);
}

.sm-product-card {
    background: #faf6f3;
    border: 1px solid transparent;
    padding: var(--spacing-xl) var(--spacing-lg);
    cursor: pointer;
    transition: var(--transition-smooth);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.sm-product-card:hover {
    border-color: var(--color-text);
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
}

.sm-product-card__type {
    font-family: var(--font-body);
    font-weight: 500;
    font-size: 0.65rem;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--color-text-light);
}

.sm-product-card__name {
    font-family: var(--font-display);
    font-weight: 400;
    font-size: 1.25rem;
    line-height: 1.3;
    color: var(--color-text);
}

.sm-product-card__meta {
    display: flex;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
    margin-top: auto;
}

.sm-product-card__tag {
    font-size: 0.7rem;
    font-weight: 400;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--color-mid-gray);
    background: rgba(85, 0, 0, 0.04);
    padding: 0.25rem 0.65rem;
}

/* ── Shade Swatches ──────────────────────────────────────────────────────── */
.sm-shades {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: var(--spacing-md);
}

.sm-shade-card {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md) var(--spacing-lg);
    background: transparent;
    border: 1px solid #f0ebe7;
    cursor: pointer;
    transition: var(--transition-smooth);
}

.sm-shade-card:hover {
    background: #faf6f3;
    border-color: var(--color-text);
}

.sm-shade-card__swatch {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    flex-shrink: 0;
    box-shadow: inset 0 1px 3px rgba(0,0,0,0.08), 0 1px 2px rgba(0,0,0,0.04);
    border: 2px solid rgba(255,255,255,0.7);
}

.sm-shade-card__info {
    min-width: 0;
}

.sm-shade-card__name {
    font-family: var(--font-body);
    font-weight: 500;
    font-size: 0.9rem;
    color: var(--color-text);
    margin-bottom: 2px;
}

.sm-shade-card__desc {
    font-family: var(--font-body);
    font-weight: 300;
    font-size: 0.8rem;
    color: var(--color-text-light);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

/* ── Results Hero ────────────────────────────────────────────────────────── */
.sm-results-hero {
    text-align: center;
    padding: var(--spacing-2xl) 0;
    margin-bottom: var(--spacing-xl);
    border-bottom: 1px solid #f0ebe7;
}

.sm-results-hero__badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-family: var(--font-body);
    font-weight: 500;
    font-size: 0.7rem;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--color-text-light);
    margin-bottom: var(--spacing-lg);
}

.sm-results-hero__badge svg {
    color: #4a8f4a;
}

.sm-results-hero__title {
    font-family: var(--font-display);
    font-weight: 300;
    font-size: clamp(2rem, 4vw, 3rem);
    color: var(--color-text);
    margin-bottom: var(--spacing-xl);
}

.sm-results-hero__profile {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-lg);
    background: #faf6f3;
    padding: var(--spacing-lg) var(--spacing-xl);
    border-radius: 2px;
}

.sm-results-hero__swatch {
    width: 64px;
    height: 64px;
    border-radius: 50%;
    box-shadow: 0 4px 16px rgba(0,0,0,0.1), inset 0 1px 3px rgba(0,0,0,0.08);
    border: 3px solid rgba(255,255,255,0.8);
}

.sm-results-hero__info {
    text-align: left;
}

.sm-results-hero__shade-name {
    font-family: var(--font-body);
    font-weight: 500;
    font-size: 1rem;
    color: var(--color-text);
    margin-bottom: 2px;
}

.sm-results-hero__shade-desc {
    font-family: var(--font-body);
    font-weight: 300;
    font-size: 0.85rem;
    color: var(--color-text-light);
}

.sm-results-hero__shade-coords {
    font-family: var(--font-body);
    font-weight: 400;
    font-size: 0.75rem;
    color: var(--color-mid-gray);
    margin-top: 4px;
    letter-spacing: 0.05em;
}

/* ── Filters ─────────────────────────────────────────────────────────────── */
.sm-filters {
    display: flex;
    gap: var(--spacing-md);
    flex-wrap: wrap;
    margin-bottom: var(--spacing-xl);
    padding-bottom: var(--spacing-lg);
    border-bottom: 1px solid #f0ebe7;
}

.sm-filters__group {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.sm-filters__label {
    font-size: 0.65rem;
    font-weight: 500;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--color-text-light);
}

.sm-filters__select {
    background: #faf6f3;
    border: 1px solid transparent;
    padding: 0.55rem 2rem 0.55rem 0.8rem;
    font-family: var(--font-body);
    font-size: 0.85rem;
    font-weight: 300;
    color: var(--color-text);
    cursor: pointer;
    transition: var(--transition-fast);
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg width='10' height='6' viewBox='0 0 10 6' fill='none' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M1 1L5 5L9 1' stroke='%23550000' stroke-width='1.5' stroke-linecap='round'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 0.8rem center;
    min-width: 150px;
}

.sm-filters__select:focus {
    outline: none;
    border-color: var(--color-text);
}

/* ── Results Grid ────────────────────────────────────────────────────────── */
.sm-results {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-2xl);
}

.sm-result-card {
    display: flex;
    gap: var(--spacing-md);
    padding: var(--spacing-lg);
    background: var(--color-white);
    border: 1px solid #f0ebe7;
    transition: var(--transition-smooth);
    animation: smFadeIn 0.4s ease both;
}

.sm-result-card:hover {
    border-color: var(--color-text);
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}

.sm-result-card__swatch {
    width: 52px;
    height: 52px;
    border-radius: 50%;
    flex-shrink: 0;
    box-shadow: inset 0 1px 3px rgba(0,0,0,0.08), 0 1px 2px rgba(0,0,0,0.04);
    border: 2px solid rgba(255,255,255,0.7);
    align-self: flex-start;
    margin-top: 2px;
}

.sm-result-card__content {
    min-width: 0;
    flex: 1;
}

.sm-result-card__brand {
    font-family: var(--font-body);
    font-weight: 500;
    font-size: 0.65rem;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: var(--color-text-light);
    margin-bottom: 3px;
}

.sm-result-card__product {
    font-family: var(--font-body);
    font-weight: 400;
    font-size: 0.8rem;
    color: var(--color-mid-gray);
    margin-bottom: 4px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.sm-result-card__shade {
    font-family: var(--font-body);
    font-weight: 500;
    font-size: 0.95rem;
    color: var(--color-text);
    margin-bottom: 6px;
}

.sm-result-card__match {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    font-family: var(--font-body);
    font-weight: 400;
    font-size: 0.72rem;
    letter-spacing: 0.05em;
    padding: 3px 10px;
    border-radius: 1px;
}

.sm-result-card__match--exact {
    background: #e8f5e9;
    color: #2e7d32;
}

.sm-result-card__match--very-close {
    background: #e3f2fd;
    color: #1565c0;
}

.sm-result-card__match--close {
    background: #fff3e0;
    color: #e65100;
}

.sm-result-card__match--good {
    background: #f3e5f5;
    color: #7b1fa2;
}

.sm-result-card__diff {
    font-family: var(--font-body);
    font-weight: 300;
    font-size: 0.78rem;
    color: var(--color-mid-gray);
    margin-top: 6px;
    line-height: 1.4;
}

.sm-results__empty {
    grid-column: 1 / -1;
    text-align: center;
    padding: var(--spacing-2xl);
    color: var(--color-mid-gray);
}

.sm-results__count {
    grid-column: 1 / -1;
    font-family: var(--font-body);
    font-weight: 300;
    font-size: 0.85rem;
    color: var(--color-mid-gray);
    margin-bottom: var(--spacing-sm);
}

/* ── Restart Button ──────────────────────────────────────────────────────── */
.sm-restart-wrap {
    text-align: center;
    padding: var(--spacing-xl) 0 var(--spacing-2xl);
}

.sm-restart {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: none;
    border: 1px solid var(--color-text);
    color: var(--color-text);
    font-family: var(--font-body);
    font-weight: 400;
    font-size: 0.8rem;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    padding: 0.85rem 2.2rem;
    cursor: pointer;
    transition: var(--transition-smooth);
}

.sm-restart:hover {
    background: var(--color-text);
    color: var(--color-white);
}

/* ── How It Works ────────────────────────────────────────────────────────── */
.sm-how {
    background: #faf6f3;
    padding: var(--spacing-3xl) var(--spacing-xl);
}

.sm-how__inner {
    max-width: var(--container-max);
    margin: 0 auto;
    text-align: center;
}

.sm-how__title {
    font-family: var(--font-display);
    font-weight: 300;
    font-size: clamp(1.8rem, 3.5vw, 2.6rem);
    color: var(--color-text);
    margin-bottom: var(--spacing-md);
}

.sm-how__desc {
    font-family: var(--font-body);
    font-weight: 300;
    font-size: 0.95rem;
    line-height: 1.7;
    color: var(--color-text-light);
    max-width: 640px;
    margin: 0 auto var(--spacing-2xl);
}

.sm-how__grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-xl);
}

.sm-how__card {
    text-align: center;
    padding: var(--spacing-lg);
}

.sm-how__number {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 48px;
    height: 48px;
    margin: 0 auto var(--spacing-md);
    font-family: var(--font-display);
    font-size: 1.4rem;
    font-weight: 300;
    color: var(--color-text);
    border: 1px solid var(--color-text);
    border-radius: 50%;
}

.sm-how__card h3 {
    font-family: var(--font-body);
    font-weight: 500;
    font-size: 0.85rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--color-text);
    margin-bottom: var(--spacing-sm);
}

.sm-how__card p {
    font-family: var(--font-body);
    font-weight: 300;
    font-size: 0.88rem;
    line-height: 1.6;
    color: var(--color-text-light);
}

/* ── Responsive ──────────────────────────────────────────────────────────── */
@media (max-width: 768px) {
    .sm-hero {
        min-height: 55vh;
    }

    .sm-hero__content {
        padding: var(--spacing-2xl) var(--spacing-md);
    }

    .sm-wizard {
        padding: var(--spacing-xl) var(--spacing-md);
    }

    .sm-brands__group {
        grid-template-columns: 40px 1fr;
    }

    .sm-brands__list {
        grid-template-columns: 1fr;
    }

    .sm-products {
        grid-template-columns: 1fr;
    }

    .sm-shades {
        grid-template-columns: 1fr;
    }

    .sm-results {
        grid-template-columns: 1fr;
    }

    .sm-how__grid {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--spacing-lg);
    }

    .sm-filters {
        flex-direction: column;
    }

    .sm-filters__select {
        width: 100%;
        min-width: unset;
    }

    .sm-results-hero__profile {
        flex-direction: column;
        align-items: center;
        text-align: center;
    }

    .sm-results-hero__info {
        text-align: center;
    }

    .sm-alpha {
        justify-content: center;
    }
}

@media (max-width: 480px) {
    .sm-hero {
        min-height: 50vh;
    }

    .sm-hero__cta {
        padding: 0.9rem 2rem;
        font-size: 0.75rem;
    }

    .sm-how__grid {
        grid-template-columns: 1fr;
    }

    .sm-result-card {
        flex-direction: column;
        align-items: flex-start;
    }

    .sm-result-card__swatch {
        align-self: unset;
    }
}