.srv-hero {
    position: relative;
    height: 50vh;
    min-height: 400px;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}
.srv-hero__bg {
    position: absolute;
    inset: 0;
    background-size: cover;
    background-position: center;
    filter: brightness(0.7);
}
.srv-hero__overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(19, 79, 60, 0.9) 0%, rgba(216, 195, 102, 0.7) 100%);
}
.srv-hero__content {
    position: relative;
    z-index: 2;
    text-align: center;
    padding: 40px 20px;
}
.srv-hero__title {
    font-size: clamp(36px, 6vw, 56px);
    font-weight: 700;
    color: var(--clr-cream);
    margin-bottom: 16px;
    text-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
}
.srv-hero__subtitle {
    font-size: clamp(16px, 2.5vw, 20px);
    color: rgba(255, 253, 235, 0.95);
    max-width: 600px;
    margin: 0 auto;
}

/* ===================================
   MAIN LAYOUT
=================================== */
.srv-main {
    padding: 80px 0;
    background: linear-gradient(180deg, #f8f7f0 0%, var(--clr-white) 100%);
    min-height: 100vh;
}
.srv-wrap {
    max-width: 1600px;
    margin: 0 auto;
    padding: 0 20px;
    display: grid;
    grid-template-columns: 25% 72%;
    gap: 20px;
    align-items: start;
}

/* ===================================
   SIDEBAR - BÊN TRÁI
=================================== */
.srv-sidebar {
    position: sticky;
    top: 100px;
}
.srv-sidebar__head {
    padding: 0 0 32px 0;
    margin-bottom: 32px;
    border-bottom: 3px solid var(--clr-gold);
    position: relative;
}
.srv-sidebar__head::after {
    content: '';
    position: absolute;
    bottom: -3px;
    left: 0;
    width: 60px;
    height: 3px;
    background: var(--clr-green);
}
.srv-sidebar__title {
    font-size: 36px;
    font-weight: 800;
    color: var(--clr-green);
    margin-bottom: 12px;
    letter-spacing: -0.5px;
}
.srv-sidebar__desc {
    font-size: 16px;
    color: var(--clr-text-light);
    line-height: 1.6;
}

/* ===================================
   MENU NAVIGATION
=================================== */
.srv-menu {
    padding: 0;
    max-height: calc(100vh - 350px);
    overflow-y: auto;
}
.srv-menu::-webkit-scrollbar {
    width: 6px;
}
.srv-menu::-webkit-scrollbar-track {
    background: transparent;
}
.srv-menu::-webkit-scrollbar-thumb {
    background: var(--clr-gold);
    border-radius: 10px;
}
.srv-menu::-webkit-scrollbar-thumb:hover {
    background: #c9b366;
}
.srv-menu__btn {
    display: flex;
    align-items: center;
    gap: 16px;
    width: 90%;
    padding: 18px 20px;
    margin-bottom: 12px;
    background: var(--clr-white);
    border: 2px solid #e8e6d0;
    border-radius: 16px;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
}
.srv-menu__btn::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 4px;
    height: 0;
    background: var(--clr-gold);
    border-radius: 0 4px 4px 0;
    transition: height 0.3s ease;
}
.srv-menu__btn:hover {
    background: #fafaf5;
    border-color: var(--clr-gold);
    box-shadow: var(--shadow-sm);
    transform: translateX(8px);
}
.srv-menu__btn:hover::before {
    height: 60%;
}
.srv-menu__btn.active {
    background: linear-gradient(135deg, var(--clr-green) 0%, #c9b366 100%);
    border-color: var(--clr-gold);
    box-shadow: 0 8px 24px rgba(216, 195, 102, 0.4);
    transform: translateX(8px);
}

.srv-menu__icon {
    flex-shrink: 0;
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: #f8f7f0;
    border-radius: 12px;
    color: var(--clr-green);
    transition: all 0.3s ease;
}
.srv-menu__btn:hover .srv-menu__icon {
    background: var(--clr-gold);
    color: var(--clr-white);
    transform: scale(1.1);
}
.srv-menu__btn.active .srv-menu__icon {
    background: rgba(19, 79, 60, 0.2);
    color: var(--clr-green);
    transform: scale(1.05);
}
.srv-menu__text {
    flex: 1;
    text-align: left;
}
.srv-menu__name {
    display: block;
    font-size: 17px;
    font-weight: 700;
    color: var(--clr-green);
    margin-bottom: 5px;
    line-height: 1.3;
    transition: color 0.3s ease;
}
.srv-menu__btn.active .srv-menu__name {
    color: var(--clr-white);
}
.srv-menu__count {
    display: block;
    font-size: 13px;
    color: var(--clr-text-light);
    transition: color 0.3s ease;
    font-weight: 500;
}
.srv-menu__btn.active .srv-menu__count {
    color: rgba(255, 255, 255, 0.85);
}
.srv-menu__arrow {
    flex-shrink: 0;
    color: var(--clr-green);
    transition: all 0.3s ease;
    opacity: 0.5;
}
.srv-menu__btn:hover .srv-menu__arrow {
    transform: translateX(4px);
    opacity: 1;
}
.srv-menu__btn.active .srv-menu__arrow {
    color: var(--clr-white);
    transform: translateX(4px);
    opacity: 1;
}

/* ===================================
   CONTENT AREA - BÊN PHẢI
=================================== */
.srv-content {
    min-height: 600px;
}
.srv-cat {
    display: none;
    animation: fadeIn 0.5s ease;
}
.srv-cat.active {
    display: block;
}
@@keyframes fadeIn {
    from { opacity: 0; transform: translateY(30px); }
    to { opacity: 1; transform: translateY(0); }
}
.srv-cat__head {
    margin-bottom: 48px;
}
.srv-cat__badge {
    display: inline-block;
    padding: 8px 20px;
    background: linear-gradient(135deg, var(--clr-gold) 0%, #c9b366 100%);
    color: var(--clr-green);
    font-size: 13px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 2px;
    border-radius: 100px;
    margin-bottom: 20px;
    box-shadow: 0 4px 16px rgba(216, 195, 102, 0.3);
}
.srv-cat__title {
    font-size: clamp(32px, 5vw, 44px);
    font-weight: 700;
    color: var(--clr-green);
    margin-bottom: 16px;
    line-height: 1.2;
}
.srv-cat__desc {
    font-size: 19px;
    line-height: 1.7;
    color: var(--clr-text-light);
    max-width: 800px;
}

/* ===================================
   SERVICES GRID
=================================== */
.srv-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 32px;
}

/* ===================================
   SERVICE CARD
=================================== */
.srv-card {
    background: var(--clr-white);
    border-radius: 20px;
    overflow: hidden;
        max-width: 340px; /* hoặc 360px nếu muốn nhỏ hơn */

    box-shadow: var(--shadow-sm);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    border: 2px solid transparent;
    height: 100%;
    display: flex;
    flex-direction: column;
}
.srv-card:hover {
    transform: translateY(-12px);
    box-shadow: 0 20px 50px rgba(216, 195, 102, 0.3);
    border-color: var(--clr-gold);
}
.srv-card__img {
    position: relative;
    width: 100%;
    aspect-ratio: 5 / 3;
    overflow: hidden;
    background: linear-gradient(135deg, var(--clr-cream) 0%, #d4d2b8 100%);
}
.srv-card__img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}
.srv-card:hover .srv-card__img img {
    transform: scale(1.15) rotate(2deg);
}
.srv-card__overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, transparent 0%, rgba(19, 79, 60, 0.9) 100%);
    display: flex;
    align-items: flex-end;
    justify-content: center;
    padding: 24px;
    opacity: 0;
    transition: opacity 0.4s ease;
}
.srv-card:hover .srv-card__overlay {
    opacity: 1;
}
.srv-card__view {
    padding: 12px 28px;
    background: var(--clr-gold);
    color: var(--clr-green);
    font-size: 14px;
    font-weight: 700;
    border-radius: 100px;
    text-transform: uppercase;
    letter-spacing: 1px;
    transform: translateY(20px);
    transition: transform 0.4s ease;
}
.srv-card:hover .srv-card__view {
    transform: translateY(0);
}
.srv-card__body {
    padding: 24px;
    flex: 1;
    display: flex;
    flex-direction: column;
}
.srv-card__name {
    font-size: 24px;
    font-weight: 700;
    color: var(--clr-green);
    margin-bottom: 16px;
    line-height: 1.3;
    transition: color 0.3s ease;
}
.srv-card:hover .srv-card__name {
    color: var(--clr-gold);
}
.srv-card__desc {
    font-size: 16px;
    line-height: 1.75;
    color: var(--clr-text-light);
    margin-bottom: 24px;
    flex: 1;
}
.srv-card__desc p {
    margin-bottom: 12px;
}
.srv-card__desc p:last-child {
    margin-bottom: 0;
}
.srv-card__desc ul,
.srv-card__desc ol {
    padding-left: 24px;
    margin-bottom: 12px;
}
.srv-card__desc li {
    margin-bottom: 8px;
}
.srv-card__desc strong {
    color: var(--clr-green);
    font-weight: 600;
}
.srv-card__footer {
    padding-top: 24px;
    border-top: 2px solid rgba(216, 195, 102, 0.15);
    margin-top: auto;
}
.srv-card__qr {
    display: flex;
    align-items: center;
    gap: 16px;
}
.srv-card__qr img {
    width: 80px;
    height: 80px;
    border: 3px solid var(--clr-gold);
    border-radius: 12px;
    padding: 6px;
    background: var(--clr-white);
    box-shadow: 0 4px 12px rgba(216, 195, 102, 0.25);
    flex-shrink: 0;
}
.srv-card__qr span {
    font-size: 14px;
    font-weight: 600;
    color: var(--clr-gold);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* ===================================
   EMPTY STATE
=================================== */
.srv-empty {
    text-align: center;
    padding: 80px 20px;
    color: var(--clr-text-light);
}
.srv-empty svg {
    margin: 0 auto 24px;
    color: rgba(19, 79, 60, 0.2);
}
.srv-empty p {
    font-size: 18px;
    color: var(--clr-text-light);
    opacity: 0.6;
}

/* ===================================
   RESPONSIVE
=================================== */
@media (max-width: 1280px) {
    .srv-wrap {
        grid-template-columns: 32% 68%;
        gap: 44px;
        padding: 0 32px;
    }
    .srv-grid {
        grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
        gap: 28px;
    }
}

@media (max-width: 992px) {
    .srv-hero {
        height: 40vh;
        min-height: 320px;
    }
    .srv-main {
        padding: 60px 0;
    }
    .srv-wrap {
        grid-template-columns: 1fr;
        gap: 48px;
        padding: 0 24px;
    }
    .srv-sidebar {
        position: static;
    }
    .srv-sidebar__head {
        padding: 0 0 24px 0;
        margin-bottom: 24px;
    }
    .srv-sidebar__title {
        font-size: 32px;
    }
    .srv-menu {
        max-height: none;
    }
    .srv-menu__btn:hover,
    .srv-menu__btn.active {
        transform: translateX(0);
    }
    .srv-grid {
        grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    }
}

@media (max-width: 640px) {
   .srv-hero {
        height: 35vh;
        min-height: 280px;
    }
    .srv-hero__title {
        font-size: 32px;
    }
    .srv-main {
        padding: 48px 0;
    }
    .srv-wrap {
        padding: 0 16px;
    }
    .srv-sidebar__title {
        font-size: 28px;
    }
    .srv-sidebar__desc {
        font-size: 15px;
    }
    .srv-menu__btn {
        padding: 16px 18px;
        gap: 14px;
    }
    .srv-menu__icon {
        width: 44px;
        height: 44px;
    }
    .srv-menu__name {
        font-size: 16px;
    }
    .srv-cat__head {
        margin-bottom: 36px;
    }
    .srv-cat__title {
        font-size: 28px;
    }
    .srv-cat__desc {
        font-size: 16px;
    }
    .srv-grid {
        grid-template-columns: 1fr;
        gap: 24px;
    }
    .srv-card__body {
        padding: 24px;
    }
    .srv-card__name {
        font-size: 21px;
    }
    .srv-card__desc {
        font-size: 15px;
    }
    .srv-card__qr {
        flex-direction: column;
        text-align: center;
    }
    .srv-card__qr img {
        width: 100px;
        height: 100px;
    }
}

/* ===================================
   ACCESSIBILITY
=================================== */
@media (prefers-reduced-motion: reduce) {
    .srv-cat,
    .srv-card,
    .srv-menu__btn,
    .srv-card__img img {
        animation: none !important;
        transition: none !important;
    }
}

.srv-menu__btn:focus-visible {
    outline: 3px solid var(--clr-gold);
    outline-offset: 4px;
}