/* ===== TRANG CANH TÁC MÍA BỀN VỮNG ===== */

.sustain-page {
    padding: 40px 20px 80px;
    background: #f4f7fb;
    color: #1f2933;
    font-family: 'Poppins', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

/* HERO */
.sus-hero {
    max-width: 1200px;
    margin: 0 auto 56px;
}

.sus-hero-inner {
    display: grid;
    grid-template-columns: minmax(0, 1.3fr) minmax(0, 1fr);
    gap: 40px;
    align-items: center;
}

.sus-eyebrow {
    display: inline-block;
    padding: 4px 14px;
    border-radius: 999px;
    background: rgba(14, 116, 53, 0.08);
    color: #0f766e;
    font-size: 0.78rem;
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.sus-hero h1 {
    margin: 14px 0 12px;
    font-size: clamp(2.1rem, 3.3vw, 2.8rem);
    font-weight: 800;
    line-height: 1.2;
    background: linear-gradient(120deg, #0c7a2d, #37c46b);
    -webkit-background-clip: text;
    color: transparent;
}

.sus-hero p {
    margin: 0 0 10px;
    font-size: 1.02rem;
    line-height: 1.8;
    color: #4b5563;
}

/* Hình hero với khung hiện đại */
.sus-hero-image {
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: 8px;
    align-items: flex-start;
}

.sus-image-frame {
    border-radius: 26px;
    padding: 3px;
    background: linear-gradient(135deg, rgba(19, 148, 65, 0.9), rgba(131, 220, 164, 0.4));
    box-shadow: 0 18px 42px rgba(15, 23, 42, 0.22);
}

    .sus-image-frame img {
        display: block;
        width: 100%;
        height: auto;
        border-radius: 22px;
        object-fit: cover;
    }

.sus-hero-image figcaption {
    font-size: 0.88rem;
    color: #64748b;
}

/* ===== DANH SÁCH THỰC HÀNH ===== */

.sus-practices {
    max-width: 1200px;
    margin: 0 auto;
}

.sus-section-title {
    margin: 0 0 24px;
    text-align: center;
    font-size: clamp(1.8rem, 2.6vw, 2.2rem);
    font-weight: 700;
    color: #14532d;
}

.sus-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 24px;
}

/* Card */
.sus-card {
    background: #ffffff;
    border-radius: 22px;
    box-shadow: 0 14px 32px rgba(15, 23, 42, 0.12);
    overflow: hidden;
    display: flex;
    flex-direction: column;
    transition: transform 0.35s ease, box-shadow 0.35s ease;
}

.sus-card-media {
    position: relative;
    overflow: hidden;
}

    .sus-card-media img {
        width: 100%;
        height: 190px;
        object-fit: cover;
        display: block;
        transition: transform 0.7s ease, filter 0.4s ease;
    }

.sus-card-body {
    padding: 14px 16px 16px;
}

    .sus-card-body h3 {
        margin: 0 0 6px;
        font-size: 1.05rem;
        font-weight: 600;
        color: #111827;
    }

    .sus-card-body p {
        margin: 0;
        font-size: 0.95rem;
        color: #4b5563;
    }

/* Hover: card nổi và ảnh zoom nhẹ, tối lại */
@media (hover:hover) {
    .sus-card:hover {
        transform: translateY(-6px);
        box-shadow: 0 20px 46px rgba(15, 23, 42, 0.18);
    }

        .sus-card:hover .sus-card-media img {
            transform: scale(1.06);
            filter: brightness(0.9) saturate(1.05);
        }
}

/* ===== HIỆU ỨNG CUỘN (FADE + SLIDE) ===== */

.sus-anim {
    opacity: 0;
    transform: translate3d(0, 32px, 0);
    filter: blur(10px);
    transition: opacity 0.8s ease, transform 0.8s cubic-bezier(0.22, 0.61, 0.36, 1), filter 0.8s ease;
    will-change: opacity, transform, filter;
}

.sus-anim--left {
    transform: translate3d(-60px, 32px, 0);
}

.sus-anim--right {
    transform: translate3d(60px, 32px, 0);
}

.sus-anim--up {
    transform: translate3d(0, 50px, 0);
}

.sus-anim.is-visible {
    opacity: 1;
    transform: translate3d(0, 0, 0);
    filter: blur(0);
}

/* Nếu user chọn giảm chuyển động */
@media (prefers-reduced-motion: reduce) {
    .sus-anim {
        opacity: 1 !important;
        transform: none !important;
        filter: none !important;
        transition: none !important;
    }
}

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

@media (max-width: 992px) {
    .sustain-page {
        padding: 28px 16px 64px;
    }

    .sus-hero-inner {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 640px) {
    .sus-card-media img {
        height: 170px;
    }
}

/*Tai lieu*/
/* ===== SECTION TÀI LIỆU ĐÀO TẠO ===== */

.training-docs-section {
    padding: 80px 20px;
    background: linear-gradient(180deg, #f5f7fb 0%, #f9fbff 45%, #f3f9f5 100%);
}

.training-docs-container {
    max-width: 800px;
    margin: 0 auto;
    font-family: 'Poppins', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

/* Tiêu đề & mô tả */
.training-docs-section .section-title-doc {
    margin: 0;
    font-size: clamp(2rem, 3vw, 2.4rem);
    font-weight: 700;
    text-align: center;
    color: #14532d;
}

.training-docs-section .section-desc {
    margin: 10px auto 32px;
    max-width: 760px;
    text-align: center;
    font-size: 1.4rem;
    line-height: 1.7;
    color: #14532d;
}

/* Danh sách tài liệu */
.docs-list {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

/* Từng dòng tài liệu */
.doc-item {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 14px 18px;
    border-radius: 18px;
    background: #ffffff;
    box-shadow: 0 12px 30px rgba(15, 23, 42, 0.12);
    position: relative;
    overflow: hidden;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

    /* Thanh màu nhẹ bên trái */
    .doc-item::before {
        content: "";
        position: absolute;
        left: 0;
        top: 0;
        bottom: 0;
        width: 4px;
        background: linear-gradient(180deg, #16a34a, #22c55e);
    }

/* Icon */
.doc-icon {
    flex: 0 0 44px;
    width: 44px;
    height: 44px;
    border-radius: 999px;
    background: rgba(34, 197, 94, 0.09);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
}

/* Tiêu đề tài liệu */
.doc-title {
    flex: 1 1 auto;
    font-size: 1rem;
    font-weight: 600;
    color: #0c7a2d;
    text-align: left;
}

/* Nút tải xuống */
/* Hiệu ứng pulse cho nút download */
@keyframes downloadPulse {
    0% {
        transform: translateY(0) scale(1);
        box-shadow: 0 10px 22px rgba(22, 163, 74, 0.35);
    }

    50% {
        transform: translateY(-1px) scale(1.04);
        box-shadow: 0 16px 32px rgba(22, 163, 74, 0.6);
    }

    100% {
        transform: translateY(0) scale(1);
        box-shadow: 0 10px 22px rgba(22, 163, 74, 0.35);
    }
}

/* Áp hiệu ứng cho tất cả nút download */
.btn-download {
    /* các thuộc tính bạn đã có */
    flex: 0 0 auto;
    padding: 0.45rem 1.2rem;
    border-radius: 999px;
    background: linear-gradient(120deg, #16a34a, #22c55e);
    color: #ffffff;
    font-size: 0.85rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    text-decoration: none;
    border: none;
    outline: none;
    cursor: pointer;
    box-shadow: 0 10px 22px rgba(22, 163, 74, 0.45);
    transition: transform 0.25s ease, box-shadow 0.25s ease, background 0.25s ease;
    /* thêm animation */
    animation: downloadPulse 1.8s ease-in-out infinite;
}

/* Khi hover thì ưu tiên trạng thái hover hơn pulse một chút */
.doc-item:hover .btn-download {
    transform: translateY(-2px) scale(1.05);
    box-shadow: 0 18px 36px rgba(22, 163, 74, 0.7);
}

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

@media (max-width: 720px) {
    .doc-item {
        flex-direction: column;
        align-items: flex-start;
        gap: 8px;
    }

    .btn-download {
        align-self: flex-start;
    }
}

@media (max-width: 480px) {
    .training-docs-section {
        padding: 60px 16px;
    }

        .training-docs-section .section-desc {
            font-size: 0.98rem;
        }

    .doc-item {
        padding: 12px 14px;
    }
}