/* ====== WHY US SECTION ====== */
.why-us {
    padding: 50px 0 40px;
    margin-top: 40px;
    background: linear-gradient(180deg, #f8fafa 0%, #eef5f4 50%, #f8fafa 100%);
    position: relative;
    overflow: hidden;
}

.why-us::before {
    content: '';
    position: absolute;
    top: -200px;
    right: -150px;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(0, 139, 139, 0.06) 0%, transparent 70%);
    border-radius: 50%;
    pointer-events: none;
}

.why-us__header {
    text-align: center;
    max-width: 680px;
    margin: 0 auto 36px;
}

.why-us__label {
    display: inline-block;
    font-size: 12px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 3px;
    color: var(--teal-primary);
    background: rgba(0, 139, 139, 0.08);
    padding: 6px 18px;
    border-radius: 30px;
    margin-bottom: 20px;
}

.why-us__title {
    font-size: 40px;
    font-weight: 700;
    color: var(--text-dark);
    line-height: 1.2;
    margin-bottom: 20px;
}

.why-us__subtitle {
    font-size: 17px;
    color: var(--text-gray);
    line-height: 1.7;
}

/* Grid: stats + cards */
.why-us__grid {
    display: grid;
    grid-template-columns: 380px 1fr;
    gap: 32px;
    align-items: start;
}

/* Hero stats card */
.why-us__hero-card {
    background: linear-gradient(150deg, #0a4a4a 0%, #0d6b6b 40%, #107e7e 100%);
    border-radius: 24px;
    padding: 40px 32px 28px;
    color: white;
    position: relative;
    overflow: hidden;
}

.why-us__hero-card::after {
    content: '';
    position: absolute;
    bottom: -60px;
    right: -60px;
    width: 180px;
    height: 180px;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.06) 0%, transparent 70%);
    border-radius: 50%;
}

.why-us__hero-inner {
    position: relative;
    z-index: 1;
}

.why-us__stat {
    padding: 16px 0;
}

.why-us__stat-number {
    display: block;
    font-size: 44px;
    font-weight: 700;
    line-height: 1;
    margin-bottom: 8px;
    background: linear-gradient(135deg, #40E0D0 0%, #7FFFD4 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.why-us__stat-text {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.75);
    line-height: 1.5;
}

.why-us__stat-divider {
    height: 1px;
    background: rgba(255, 255, 255, 0.12);
    margin: 4px 0;
}

.why-us__hero-footer {
    margin-top: 24px;
    padding-top: 20px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    font-size: 12px;
    color: rgba(255, 255, 255, 0.45);
    display: flex;
    align-items: center;
    gap: 8px;
    position: relative;
    z-index: 1;
}

.why-us__hero-footer svg {
    opacity: 0.4;
    flex-shrink: 0;
}

.why-us__cards {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

.why-us__card {
    background: white;
    border-radius: 18px;
    padding: 22px 20px;
    display: flex;
    gap: 16px;
    align-items: flex-start;
    border: 1px solid rgba(0, 0, 0, 0.05);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.why-us__card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 30px rgba(0, 139, 139, 0.1);
}

.why-us__card-icon {
    width: 52px;
    height: 52px;
    min-width: 52px;
    background: linear-gradient(135deg, rgba(0, 139, 139, 0.08) 0%, rgba(64, 224, 208, 0.12) 100%);
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--teal-primary);
    transition: background 0.3s;
}

.why-us__card:hover .why-us__card-icon {
    background: linear-gradient(135deg, var(--teal-primary) 0%, var(--teal-light) 100%);
    color: white;
}

.why-us__card-body h3 {
    font-size: 16px;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 8px;
    line-height: 1.3;
}

.why-us__card-body p {
    font-size: 13.5px;
    color: var(--text-gray);
    line-height: 1.6;
    margin: 0;
}

/* Mineral strip */
.why-us__minerals {
    display: flex;
    justify-content: center;
    gap: 12px;
    margin-top: 56px;
    flex-wrap: wrap;
}

.why-us__mineral {
    display: flex;
    align-items: center;
    gap: 8px;
    background: white;
    border: 1px solid rgba(0, 139, 139, 0.1);
    padding: 10px 18px;
    border-radius: 50px;
    font-size: 13px;
    color: var(--text-gray);
    font-weight: 500;
    transition: all 0.25s;
    cursor: default;
}

.why-us__mineral:hover {
    border-color: var(--teal-primary);
    color: var(--teal-primary);
    box-shadow: 0 2px 12px rgba(0, 139, 139, 0.1);
    transform: translateY(-2px);
}

.why-us__mineral span {
    font-weight: 800;
    font-size: 15px;
    color: var(--teal-primary);
    font-family: 'Courier New', monospace;
    width: 28px;
    height: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(0, 139, 139, 0.08);
    border-radius: 8px;
}

/* ====== FAQ SECTION ====== */
.faq-section {
    padding: 50px 0 60px;
    background: linear-gradient(180deg, #f8fafa 0%, #ffffff 100%);
}

.faq-header {
    text-align: center;
    max-width: 640px;
    margin: 0 auto 32px;
}

.faq-label {
    display: inline-block;
    font-size: 12px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 3px;
    color: var(--teal-primary);
    background: rgba(0, 139, 139, 0.08);
    padding: 6px 18px;
    border-radius: 30px;
    margin-bottom: 20px;
}

.faq-title {
    font-size: 38px;
    font-weight: 700;
    color: var(--text-dark);
    line-height: 1.2;
    margin-bottom: 16px;
}

.faq-subtitle {
    font-size: 16px;
    color: var(--text-gray);
    line-height: 1.7;
}

.faq-subtitle a {
    color: var(--teal-primary);
    text-decoration: none;
    font-weight: 600;
    border-bottom: 1px dashed var(--teal-primary);
    transition: border-color 0.2s;
}

.faq-subtitle a:hover {
    border-bottom-style: solid;
}

/* Two-column grid: FAQ + Reviews */
.faq-reviews-grid {
    display: grid;
    grid-template-columns: 1fr 340px;
    gap: 28px;
    align-items: start;
}

/* Accordion list */
.faq-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.faq-item {
    background: white;
    border-radius: 16px;
    border: 1px solid rgba(0, 0, 0, 0.06);
    overflow: hidden;
    transition: box-shadow 0.3s, border-color 0.3s;
}

.faq-item:hover {
    border-color: rgba(0, 139, 139, 0.15);
}

.faq-item.active {
    border-color: rgba(0, 139, 139, 0.2);
    box-shadow: 0 4px 20px rgba(0, 139, 139, 0.08);
}

/* Question button */
.faq-question {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 20px 24px;
    background: none;
    border: none;
    cursor: pointer;
    font-size: 15px;
    font-weight: 600;
    color: var(--text-dark);
    text-align: left;
    gap: 14px;
    line-height: 1.4;
    font-family: inherit;
    transition: color 0.2s;
}

.faq-question:hover {
    color: var(--teal-primary);
}

.faq-item.active .faq-question {
    color: var(--teal-primary);
}

/* Plus/minus icon */
.faq-icon {
    width: 30px;
    height: 30px;
    min-width: 30px;
    border-radius: 50%;
    background: rgba(0, 139, 139, 0.08);
    position: relative;
    transition: background 0.3s, transform 0.3s;
}

.faq-icon::before,
.faq-icon::after {
    content: '';
    position: absolute;
    background: var(--teal-primary);
    border-radius: 2px;
    transition: transform 0.3s, opacity 0.2s;
}

.faq-icon::before {
    width: 14px;
    height: 2px;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}

.faq-icon::after {
    width: 2px;
    height: 14px;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}

.faq-item.active .faq-icon {
    background: var(--teal-primary);
    transform: rotate(180deg);
}

.faq-item.active .faq-icon::before,
.faq-item.active .faq-icon::after {
    background: white;
}

.faq-item.active .faq-icon::after {
    transform: translate(-50%, -50%) rotate(90deg);
    opacity: 0;
}

/* Answer panel */
.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.faq-answer-inner {
    padding: 0 24px 20px;
    font-size: 14px;
    color: var(--text-gray);
    line-height: 1.75;
}

.faq-answer-inner p {
    margin: 0;
}

.faq-answer-inner a {
    color: var(--teal-primary);
    text-decoration: none;
    font-weight: 600;
    border-bottom: 1px dashed var(--teal-primary);
}

.faq-answer-inner a:hover {
    border-bottom-style: solid;
}

/* ====== REVIEWS PANEL ====== */
.reviews-panel {
    background: white;
    border-radius: 20px;
    border: 1px solid rgba(0, 0, 0, 0.06);
    overflow: hidden;
    display: flex;
    flex-direction: column;
    position: sticky;
    top: 100px;
}

.reviews-panel__header {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 20px 22px 16px;
    font-size: 16px;
    font-weight: 700;
    color: var(--text-dark);
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
}

.reviews-panel__scroll {
    height: 580px;
    overflow: hidden;
    position: relative;
}

.reviews-panel__track {
    display: flex;
    flex-direction: column;
    gap: 14px;
    padding: 16px 18px;
}

.reviews-panel__track.scrolling {
    animation: reviewsAutoScroll 50s linear infinite;
}

.reviews-panel__scroll:hover .reviews-panel__track {
    animation-play-state: paused;
}

@keyframes reviewsAutoScroll {
    0% {
        transform: translateY(0);
    }

    100% {
        transform: translateY(-50%);
    }
}

/* Review card */
.review-card {
    padding: 16px;
    background: #f8fafa;
    border-radius: 14px;
    border: 1px solid rgba(0, 0, 0, 0.04);
    transition: border-color 0.2s;
    flex-shrink: 0;
}

.review-card:hover {
    border-color: rgba(0, 139, 139, 0.15);
}

.review-card__top {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 8px;
}

.review-card__avatar {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--teal-primary), var(--teal-dark));
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 12px;
    font-weight: 700;
    flex-shrink: 0;
}

.review-card__meta {
    display: flex;
    flex-direction: column;
    min-width: 0;
}

.review-card__name {
    font-size: 13px;
    font-weight: 700;
    color: var(--text-dark);
    line-height: 1.3;
}

.review-card__product {
    font-size: 11px;
    color: var(--text-gray);
    line-height: 1.3;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.review-card__stars {
    font-size: 13px;
    color: #f5a623;
    margin-bottom: 6px;
    letter-spacing: 1px;
}

.review-card__text {
    font-size: 13px;
    color: var(--text-gray);
    line-height: 1.6;
    margin: 0;
}

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

/* Why Us responsive */
@media (max-width: 1024px) {
    .why-us__grid {
        grid-template-columns: 1fr;
    }

    .why-us__hero-card {
        display: grid;
        grid-template-columns: 1fr 1fr 1fr;
        gap: 24px;
        padding: 32px;
    }

    .why-us__hero-inner {
        display: contents;
    }

    .why-us__stat-divider {
        display: none;
    }

    .why-us__hero-footer {
        grid-column: 1 / -1;
        margin-top: 0;
    }

    .why-us__title {
        font-size: 32px;
    }

    .faq-reviews-grid {
        grid-template-columns: 1fr 300px;
        gap: 20px;
    }
}

@media (max-width: 768px) {
    .why-us {
        padding: 64px 0 48px;
        margin-top: 48px;
    }

    .why-us__hero-card {
        grid-template-columns: 1fr;
    }

    .why-us__stat-divider {
        display: block;
    }

    .why-us__cards {
        grid-template-columns: 1fr;
    }

    .why-us__title {
        font-size: 28px;
    }

    .why-us__minerals {
        gap: 8px;
        margin-top: 40px;
    }

    .why-us__mineral {
        padding: 8px 14px;
        font-size: 12px;
    }

    .faq-section {
        padding: 48px 0 64px;
    }

    .faq-title {
        font-size: 28px;
    }

    .faq-reviews-grid {
        grid-template-columns: 1fr;
    }

    .reviews-panel {
        position: static;
    }

    .reviews-panel__scroll {
        height: 400px;
    }

    .faq-question {
        padding: 18px 20px;
        font-size: 15px;
    }

    .faq-answer-inner {
        padding: 0 20px 20px;
        font-size: 14px;
    }

    .faq-icon {
        width: 28px;
        height: 28px;
        min-width: 28px;
    }

    .faq-icon::before {
        width: 12px;
    }

    .faq-icon::after {
        height: 12px;
    }
}