:root {
    --kt-green: #0f766e;
    --kt-green-soft: #e0f2f1;
    --kt-blue: #0369a1;
    --kt-yellow: #facc15;
    --kt-dark: #0f172a;
    --kt-title: rgb(0, 60, 94);
}

/* =========KTMT HERO========= */
.hero-text {
    font-size: 14px;
    font-weight: 800;
}

.ktmt-hero-tech {
    --ktmt-green: #198754;
    --ktmt-green-2: #0f5132;
    --ktmt-blue: #0d6efd;

    --txt: rgba(33, 37, 41, .92);
    --muted: rgba(33, 37, 41, .68);

    --bd: rgba(33, 37, 41, .10);
    --bd-strong: rgba(25, 135, 84, .16);

    --glass: rgba(255, 255, 255, .78);
    --glass-2: rgba(255, 255, 255, .86);

    position: relative;
    overflow: hidden;
    border-radius: 1.75rem;
    border: 1px solid rgba(25, 135, 84, .14);
    color: var(--txt);
    background:
        radial-gradient(1200px 520px at 12% 18%, rgba(25, 135, 84, .18), transparent 55%),
        radial-gradient(900px 520px at 88% 30%, rgba(13, 110, 253, .12), transparent 55%),
        linear-gradient(180deg, #f7fbf9 0%, #ffffff 55%, #f3fbf6 100%);
}

.ktmt-hero-tech::before {
    content: "";
    position: absolute;
    inset: 0;
    background:
        /* blueprint grid (light) */
        linear-gradient(rgba(25, 135, 84, .10) 1px, transparent 1px) 0 0/ 28px 28px,
        linear-gradient(90deg, rgba(25, 135, 84, .08) 1px, transparent 1px) 0 0/ 28px 28px,
        /* major grid */
        linear-gradient(rgba(33, 37, 41, .06) 1px, transparent 1px) 0 0/ 140px 140px,
        linear-gradient(90deg, rgba(33, 37, 41, .05) 1px, transparent 1px) 0 0/ 140px 140px;
    opacity: .55;
    pointer-events: none;
}

.ktmt-hero-tech::after {
    content: "";
    position: absolute;
    left: -30%;
    top: -50%;
    width: 140%;
    height: 140%;
    background: radial-gradient(circle at 50% 50%, rgba(25, 135, 84, .10), transparent 52%);
    filter: blur(34px);
    opacity: .6;
    pointer-events: none;
    transform: rotate(-12deg);
}

/* Title / lead */
.ktmt-hero-tech__title {
    font-weight: 800;
    letter-spacing: -0.02em;
    line-height: 1.12;
    font-size: clamp(1.8rem, 2.2vw + 1rem, 2.3rem);
    margin: 0;
    color: var(--kt-title);
}

.ktmt-hero-tech__highlight {
    color: var(--ktmt-green);
    background: linear-gradient(90deg, rgba(25, 135, 84, .16), rgba(25, 135, 84, 0));
    padding: .08rem .4rem;
    border-radius: .6rem;
    box-decoration-break: clone;
}

.ktmt-hero-tech__lead {
    color: rgba(33, 37, 41, .72);
    font-size: clamp(1rem, .35vw + .95rem, 1.125rem);
    line-height: 1.7;
    max-width: 58ch;
}

/* Tags */
.ktmt-tag {
    display: inline-flex;
    align-items: center;
    padding: .45rem .75rem;
    border-radius: 999px;
    border: 1px solid var(--bd);
    background: rgba(255, 255, 255, .70);
    color: rgba(33, 37, 41, .78);
    font-weight: 800;
    font-size: .9rem;
}

.ktmt-tag--ok {
    border-color: rgba(25, 135, 84, .22);
    background: rgba(25, 135, 84, .10);
    color: var(--ktmt-green-2);
}

/* Buttons */
.ktmt-btn {
    box-shadow: 0 12px 30px rgba(25, 135, 84, .18);
}

.ktmt-btn-alt {
    border-color: rgba(25, 135, 84, .30) !important;
    color: var(--ktmt-green) !important;
    background: rgba(255, 255, 255, .75) !important;
}

.ktmt-btn-alt:hover {
    background: rgba(25, 135, 84, .08) !important;
    color: var(--ktmt-green) !important;
}

/* Metric cards */
.ktmt-metric {
    border-radius: 1.25rem;
    border: 1px solid var(--bd);
    background: rgba(255, 255, 255, .78);
    padding: 1rem 1rem;
    height: 100%;
    box-shadow: 0 10px 30px rgba(33, 37, 41, .08);
    transition: transform .2s ease, border-color .2s ease;
}

.ktmt-metric:hover {
    transform: translateY(-2px);
    border-color: rgba(25, 135, 84, .22);
}

.ktmt-metric__top {
    display: flex;
    align-items: center;
    gap: .65rem;
    margin-bottom: .5rem;
}

.ktmt-metric__icon {
    width: 38px;
    height: 38px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 14px;
    border: 1px solid rgba(25, 135, 84, .20);
    background: rgba(25, 135, 84, .10);
    color: var(--ktmt-green);
}

.ktmt-metric__label {
    font-weight: 900;
    color: rgba(33, 37, 41, .86);
}

.ktmt-metric__value {
    font-weight: 800;
    color: rgba(33, 37, 41, .92);
    margin-bottom: .15rem;
}

.ktmt-metric__hint {
    color: rgba(33, 37, 41, .62);
    font-size: .92rem;
}

/* Micro pills */
.ktmt-hero-tech__micro {
    display: flex;
    flex-wrap: wrap;
    gap: .5rem;
}

.ktmt-mono-pill {
    font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
    font-size: .85rem;
    padding: .35rem .6rem;
    border-radius: 999px;
    border: 1px solid var(--bd);
    background: rgba(255, 255, 255, .70);
    color: rgba(33, 37, 41, .72);
}

/* Panels */
.ktmt-stack {
    position: relative;
}

.ktmt-panel {
    border-radius: 1.4rem;
    border: 1px solid var(--bd-strong);
    background: var(--glass);
    box-shadow: 0 18px 50px rgba(33, 37, 41, .10);
    overflow: hidden;
}

@supports (backdrop-filter: blur(10px)) {
    .ktmt-panel {
        backdrop-filter: blur(10px);
    }
}

.ktmt-panel__bar {
    display: flex;
    align-items: center;
    gap: .5rem;
    padding: .8rem 1rem;
    border-bottom: 1px solid rgba(33, 37, 41, .08);
    background: var(--glass-2);
}

.ktmt-dot {
    width: 10px;
    height: 10px;
    border-radius: 999px;
    background: rgba(33, 37, 41, .22);
}

.ktmt-panel__title {
    margin-left: .25rem;
    font-weight: 900;
    letter-spacing: .02em;
    font-size: .92rem;
    color: rgba(33, 37, 41, .78);
}

.ktmt-panel__badge {
    margin-left: auto;
    font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
    font-size: .78rem;
    padding: .2rem .55rem;
    border-radius: 999px;
    border: 1px solid rgba(25, 135, 84, .22);
    background: rgba(25, 135, 84, .10);
    color: var(--ktmt-green-2);
    font-weight: 900;
}

.ktmt-panel__body {
    padding: 1rem 1rem 1.1rem;
}

/* Tabs */
.ktmt-tabs .nav-link {
    color: rgba(33, 37, 41, .68);
    background: rgba(255, 255, 255, .75);
    border: 1px solid var(--bd);
    border-radius: 999px;
    padding: .42rem .85rem;
    font-weight: 900;
}

.ktmt-tabs .nav-link.active {
    color: var(--ktmt-green-2);
    border-color: rgba(25, 135, 84, .22);
    background: rgba(25, 135, 84, .10);
}

/* Flow */
.ktmt-flow {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: .75rem;
}

.ktmt-flow__step {
    display: flex;
    align-items: center;
    gap: .65rem;
    padding: .8rem .9rem;
    border-radius: 1.1rem;
    border: 1px solid var(--bd);
    background: rgba(255, 255, 255, .75);
    min-width: 210px;
    flex: 1 1 210px;
}

.ktmt-flow__icon {
    width: 40px;
    height: 40px;
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid rgba(25, 135, 84, .20);
    background: rgba(25, 135, 84, .10);
    color: var(--ktmt-green);
}

.ktmt-flow__name {
    font-weight: 900;
}

.ktmt-flow__meta {
    color: rgba(33, 37, 41, .62);
    font-size: .9rem;
}

.ktmt-flow__arrow {
    color: rgba(33, 37, 41, .30);
    flex: 0 0 auto;
}

/* Spark */
.ktmt-spark {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    padding: .85rem 1rem;
    border-radius: 1.1rem;
    border: 1px solid var(--bd);
    background: rgba(255, 255, 255, .72);
}

.ktmt-spark__k {
    font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
    color: var(--ktmt-green);
    font-weight: 900;
    letter-spacing: .02em;
}

.ktmt-spark__v {
    font-weight: 900;
    color: rgba(33, 37, 41, .88);
}

.ktmt-spark__s {
    color: rgba(33, 37, 41, .62);
    font-size: .92rem;
}

.ktmt-spark__chart {
    width: 220px;
    height: 64px;
    color: var(--ktmt-green);
    opacity: .9;
}

/* List */
.ktmt-list {
    display: flex;
    flex-direction: column;
    gap: .75rem;
}

.ktmt-list__item {
    display: flex;
    align-items: center;
    gap: .75rem;
    padding: .8rem .9rem;
    border-radius: 1.1rem;
    border: 1px solid var(--bd);
    background: rgba(255, 255, 255, .75);
}

.ktmt-list__dot {
    width: 10px;
    height: 10px;
    border-radius: 999px;
    background: rgba(25, 135, 84, .92);
    box-shadow: 0 0 0 6px rgba(25, 135, 84, .10);
}

.ktmt-list__main {
    flex: 1 1 auto;
}

.ktmt-list__name {
    font-weight: 900;
}

.ktmt-list__meta {
    color: rgba(33, 37, 41, .62);
    font-size: .92rem;
}

.ktmt-pill-ok,
.ktmt-pill-warn {
    font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
    font-size: .78rem;
    padding: .22rem .55rem;
    border-radius: 999px;
    border: 1px solid var(--bd);
    background: rgba(255, 255, 255, .70);
    font-weight: 900;
}

.ktmt-pill-ok {
    border-color: rgba(25, 135, 84, .22);
    background: rgba(25, 135, 84, .10);
    color: var(--ktmt-green-2);
}

.ktmt-pill-warn {
    border-color: rgba(255, 193, 7, .28);
    background: rgba(255, 193, 7, .12);
    color: rgba(120, 90, 0, .95);
}

/* Checks */
.ktmt-checkgrid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: .75rem;
}

.ktmt-check {
    display: flex;
    gap: .75rem;
    padding: .85rem .9rem;
    border-radius: 1.1rem;
    border: 1px solid var(--bd);
    background: rgba(255, 255, 255, .75);
}

.ktmt-check i {
    color: var(--ktmt-green);
    margin-top: .1rem;
}

.ktmt-check__t {
    font-weight: 900;
}

.ktmt-check__d {
    color: rgba(33, 37, 41, .62);
    font-size: .92rem;
}

/* Terminal (light) */
.ktmt-terminal {
    border-radius: 1.4rem;
    border: 1px solid var(--bd);
    background: rgba(255, 255, 255, .78);
    box-shadow: 0 18px 50px rgba(33, 37, 41, .10);
    overflow: hidden;
}

@supports (backdrop-filter: blur(10px)) {
    .ktmt-terminal {
        backdrop-filter: blur(10px);
    }
}

.ktmt-terminal__bar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: .75rem 1rem;
    border-bottom: 1px solid rgba(33, 37, 41, .08);
    background: rgba(255, 255, 255, .86);
}

.ktmt-terminal__title {
    font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
    font-weight: 900;
    color: var(--ktmt-green);
}

.ktmt-terminal__hint {
    color: rgba(33, 37, 41, .60);
    font-size: .92rem;
}

.ktmt-terminal__code {
    margin: 0;
    padding: 1rem 1rem 1.05rem;
    color: rgba(33, 37, 41, .78);
    font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
    font-size: .92rem;
    line-height: 1.55;
    white-space: pre-wrap;
}

/* Responsive */
@media (max-width: 575.98px) {
    .ktmt-checkgrid {
        grid-template-columns: 1fr;
    }

    .ktmt-spark {
        flex-direction: column;
        align-items: flex-start;
    }

    .ktmt-spark__chart {
        width: 100%;
    }
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
    .ktmt-metric {
        transition: none;
    }
}


/* Filters */
.filter-section {
    margin-top: -24px;
    position: relative;
    z-index: 2;
}

.filter-card {
    border-radius: 18px;
    box-shadow: 0 10px 24px rgba(15, 23, 42, 0.08);
    border: none;
}

.form-control:focus,
.form-select:focus {
    border-color: var(--kt-green);
    box-shadow: 0 0 0 0.15rem rgba(16, 185, 129, 0.2);
}

.badge-filter {
    cursor: pointer;
    border-radius: 999px;
    padding: 0.3rem 0.7rem;
    border: 1px solid transparent;
}

.badge-filter.active {
    background-color: var(--kt-green-soft);
    color: var(--kt-green);
    border-color: rgba(15, 118, 110, 0.25);
}

/* Course cards */
.course-card {
    border-radius: 18px;
    border: 1px solid #e5e7eb;
    box-shadow: 0 4px 14px rgba(15, 23, 42, 0.04);
    transition: transform 0.18s ease, box-shadow 0.18s ease, border-color 0.18s ease;
    height: 100%;
}

.course-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 16px 30px rgba(15, 23, 42, 0.12);
    border-color: rgba(15, 118, 110, 0.5);
}

.course-tag {
    font-size: 0.72rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    padding: 0.25rem 0.6rem;
    border-radius: 999px;
    background-color: #ecfdf5;
    color: #166534;
    font-weight: 600;
}

.course-level {
    font-size: 0.75rem;
    border-radius: 999px;
    padding: 0.25rem 0.6rem;
    background: #f3f4f6;
}

.course-title {
    font-size: 1.02rem;
    font-weight: 600;
}

.course-meta {
    font-size: 0.8rem;
    color: #6b7280;
}

.btn-enroll {
    border-radius: 999px;
    font-size: 0.85rem;
    padding-inline: 1.4rem;
}

/* Section titles */
.section-title {
    font-size: 1.35rem;
    font-weight: 600;
    letter-spacing: -0.01em;
}

/* Benefits */
.benefit-icon {
    width: 40px;
    height: 40px;
    border-radius: 999px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: #ecfdf5;
    margin-bottom: 0.75rem;
    font-size: 1.1rem;
}

/* CTA */
.cta-section {
    border-radius: 24px;
    background: linear-gradient(135deg, #0f766e, #0369a1);
    color: #f9fafb;
}

.cta-section .btn-outline-light {
    border-radius: 999px;
}

@media (max-width: 767.98px) {
    .hero-section {
        border-radius: 0 0 24px 24px;
    }

    .filter-section {
        margin-top: -16px;
    }

    .hero-visual {
        margin-top: 1.5rem;
    }

    .hero-circle-main {
        inset: 6%;
    }

    .hero-floating-card {
        right: 0;
        bottom: 4px;
    }
}

/* CSS METHOD */
.learning-methods-section {
    background: #f9fafb;
    border-radius: 24px;
}

.learning-badge {
    display: inline-block;
    font-size: .75rem;
    text-transform: uppercase;
    letter-spacing: .12em;
    padding: .2rem .7rem;
    border-radius: 999px;
    background: #e0f2fe;
    color: #0369a1;
    font-weight: 600;
}

.learning-title {
    font-weight: 700;
    letter-spacing: -0.03em;
}

.learning-quote {
    font-size: .9rem;
    color: #6b7280;
}

.learning-card {
    border-radius: 20px;
    background: #ffffff;
    border: 1px solid #e5e7eb;
    box-shadow: 0 8px 24px rgba(15, 23, 42, 0.04);
    transition: transform .15s ease, box-shadow .15s ease;
    height: 100%;
}

.learning-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 16px 40px rgba(15, 23, 42, 0.08);
}

.learning-icon {
    width: 44px;
    height: 44px;
    border-radius: 999px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: #eff6ff;
    color: var(--ktmt-green);
    margin-bottom: .75rem;
    font-size: 1.5rem;
}

.learning-name {
    font-weight: 600;
    font-size: 1rem;
}

.learning-subtitle {
    font-size: .8rem;
    color: #6b7280;
}

.learning-desc {
    font-size: .85rem;
    color: #4b5563;
}

/* CSS ROADMAP */
/* CSS DETAIL */
:root {
    --kt-green: #0f766e;
    --kt-green-soft: #e0f2f1;
    --kt-blue: #0369a1;
    --kt-dark: #0f172a;
}

/* Hero */
.course-hero {
    background: radial-gradient(circle at top left, #bbf7d0 0, transparent 45%),
        radial-gradient(circle at bottom right, #bae6fd 0, transparent 45%),
        #ffffff;
    border-radius: 0 0 32px 32px;
    box-shadow: 0 16px 40px rgba(15, 23, 42, 0.08);
}

.hero-highlight {
    background: linear-gradient(120deg, #0f766e, #0369a1);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

.course-tag {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    padding: 0.25rem 0.6rem;
    border-radius: 999px;
    background-color: #ecfdf5;
    color: #166534;
    font-weight: 600;
}

.course-level-pill,
.course-format-pill {
    font-size: 0.78rem;
    border-radius: 999px;
    padding: 0.25rem 0.7rem;
    background: #f3f4f6;
}

.hero-meta-item {
    font-size: 0.85rem;
}

.btn-primary-kt {
    background: linear-gradient(135deg, #0f766e, #0369a1);
    border: none;
}

.btn-primary-kt:hover {
    background: linear-gradient(135deg, #0d5f5a, #035078);
}

/* Sidebar card */
.enroll-card {
    border-radius: 20px;
    border: 1px solid #e5e7eb;
    box-shadow: 0 10px 30px rgba(15, 23, 42, 0.1);
}

.enroll-price-main {
    font-size: 1.6rem;
    font-weight: 700;
}

.enroll-price-original {
    font-size: 0.9rem;
}

.badge-discount {
    font-size: 0.72rem;
    border-radius: 999px;
}

/* Sections */
.section-title {
    font-size: 1.25rem;
    font-weight: 600;
    letter-spacing: -0.01em;
}

.check-list li {
    padding-left: 1.4rem;
    position: relative;
    margin-bottom: 0.4rem;
}

.check-list li::before {
    content: "\f00c";
    font-family: "Font Awesome 6 Free";
    font-weight: 900;
    position: absolute;
    left: 0;
    top: 0.1rem;
    color: var(--kt-green);
    font-size: 0.8rem;
}

/* Curriculum */
.accordion-button:not(.collapsed) {
    background-color: #ecfdf5;
    color: #064e3b;
}

.curriculum-badge {
    font-size: 0.75rem;
    border-radius: 999px;
    background: #f3f4f6;
    padding: 0.1rem 0.6rem;
}

/* Mentor */
.mentor-card {
    border-radius: 18px;
    border: 1px solid #e5e7eb;
    background: #ffffff;
}

.mentor-avatar {
    width: 72px;
    height: 72px;
    border-radius: 999px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--kt-green-soft);
    font-size: 2rem;
    color: var(--kt-green);
}

/* FAQ */
/* Chỉ áp dụng cho accordion FAQ, tránh ảnh hưởng chỗ khác */
.faq-accordion .accordion-item {
    border: 1px solid #e5e7eb;
    /* viền xám nhạt */
    border-radius: 8px;
    background-color: #ffffff;
    margin-bottom: 8px;
    /* khoảng cách giữa các item */
    overflow: hidden;
    /* bo tròn cả phần collapse */
}

/* Header */
.faq-accordion .accordion-button {
    padding: 0.9rem 1.25rem;
    background-color: #ffffff;
    box-shadow: none;
    color: #111827;
    /* text đậm */
    font-weight: 500;
    border-radius: 0;
    width: 100%;
}

/* Trạng thái mở & đóng không đổi màu nền */
.faq-accordion .accordion-button:not(.collapsed) {
    background-color: #ffffff;
    color: #111827;
    box-shadow: none;
}

/* Body */
.faq-accordion .accordion-body {
    padding: 0.75rem 1.25rem 1rem;
    color: #4b5563;
    /* text xám nhẹ */
    font-size: 0.9rem;
}

/* Đường gạch phân cách header - body */
.faq-accordion .accordion-collapse {
    border-top: 1px solid #e5e7eb;
}

/* Tùy chọn: làm icon mũi tên nhỏ & phẳng hơn */
.faq-accordion .accordion-button::after {
    transform-origin: center;
}

.faq-accordion .accordion-button:not(.collapsed)::after {
    transform: rotate(180deg);
}

/* Form */
.form-control:focus,
.form-select:focus {
    border-color: var(--kt-green);
    box-shadow: 0 0 0 0.15rem rgba(16, 185, 129, 0.2);
}

.required-label::after {
    content: " *";
    color: #dc2626;
}

/* CTA bottom */
.bottom-cta {
    border-radius: 24px;
    background: linear-gradient(135deg, #0f766e, #0369a1);
    color: #f9fafb;
}

@media (max-width: 767.98px) {
    .course-hero {
        border-radius: 0 0 24px 24px;
    }
}

html {
    scroll-behavior: smooth;
}

#formDangKy {
    scroll-margin-top: 50px;
    /* chỉnh 60–100px tùy chiều cao header */
}

/* CSS COURSE */
.courses-hero {
    background: radial-gradient(circle at top left, #bbf7d0 0, transparent 50%),
        radial-gradient(circle at bottom right, #bfdbfe 0, transparent 50%),
        #ffffff;
    border-radius: 0 0 24px 24px;
    box-shadow: 0 16px 40px rgba(15, 23, 42, 0.06);
}

.courses-hero-title {
    font-size: clamp(1.8rem, 3vw + 0.5rem, 2.3rem);
    font-weight: 700;
    letter-spacing: -0.03em;
}

.courses-hero-highlight {
    background: linear-gradient(120deg, #0f766e, #0369a1);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

.course-card {
    border-radius: 18px;
    border: 1px solid #e5e7eb;
    transition: all .2s ease;
    box-shadow: 0 8px 20px rgba(15, 23, 42, 0.04);
}

.course-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 16px 35px rgba(15, 23, 42, 0.08);
}

.course-tag {
    font-size: .72rem;
    text-transform: uppercase;
    letter-spacing: .08em;
    padding: .18rem .55rem;
    border-radius: 999px;
    background-color: #ecfdf5;
    color: #166534;
    font-weight: 600;
}

.course-level-pill {
    font-size: .75rem;
    border-radius: 999px;
    padding: .18rem .6rem;
    background: #f3f4f6;
    color: #4b5563;
}

.course-title {
    font-size: 1.02rem;
    font-weight: 600;
    letter-spacing: -0.01em;
}

.course-meta {
    font-size: .82rem;
}

.btn-enroll {
    font-size: .8rem;
    border-radius: 999px;
}

.filter-card {
    border-radius: 18px;
    border: 1px solid #e5e7eb;
}

/* ROADMAP */
.roadmap-timeline-config::before {
    background-color: var(--kt-green) !important;
}

.timeline-icon-config {
    background: var(--kt-green) !important;
}

.timeline-content-config {
    text-align: justify !important;
}

.timeline-content-config p:first-child {
    font-size: 24px;
    font-weight: 800;
}

@media (max-width: 575.98px) {
    .timeline-content-config p:first-child {
        font-size: 16px;
        font-weight: 800;
    }
}

/* TEST INDEX */
:root {
    --ktmt-radius: 18px;
    --ktmt-shadow: 0 .6rem 1.6rem rgba(15, 23, 42, .08);
    --ktmt-border: rgba(15, 23, 42, .10);
}

.ktmt-hero {
    position: relative;
    background:
        radial-gradient(1100px 520px at 15% 15%, rgba(13, 110, 253, .12), transparent 60%),
        radial-gradient(900px 420px at 90% 20%, rgba(25, 135, 84, .12), transparent 55%),
        radial-gradient(700px 350px at 60% 110%, rgba(255, 193, 7, .10), transparent 55%),
        #fff;
    border-bottom: 1px solid var(--ktmt-border);
}

.ktmt-hero::after {
    content: "";
    position: absolute;
    inset: auto 0 0 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(13, 110, 253, .25), rgba(25, 135, 84, .25), transparent);
}

.ktmt-card {
    border: 1px solid var(--ktmt-border);
    border-radius: var(--ktmt-radius);
    box-shadow: var(--ktmt-shadow);
    background: #fff;
}

.ktmt-pill {
    border-radius: 999px;
}

.ktmt-muted {
    color: rgba(15, 23, 42, .68);
}

.ktmt-kpi {
    border: 1px solid var(--ktmt-border);
    border-radius: 16px;
    background: rgba(255, 255, 255, .9);
    padding: .85rem 1rem;
    box-shadow: 0 .35rem 1.2rem rgba(15, 23, 42, .06);
}

.ktmt-badge {
    border: 1px solid rgba(15, 23, 42, .12);
    background: #fff;
    color: rgba(15, 23, 42, .85);
    border-radius: 999px;
    padding: .35rem .6rem;
    font-size: .78rem;
    white-space: nowrap;
}

.ktmt-pack {
    transition: transform .18s ease, box-shadow .18s ease;
}

.ktmt-pack:hover {
    transform: translateY(-2px);
    box-shadow: 0 .9rem 2.2rem rgba(15, 23, 42, .10);
}

.ktmt-pack-title {
    letter-spacing: -.01em;
    line-height: 1.25;
}

.sticky-top-lite {
    position: sticky;
    top: .85rem;
    z-index: 10;
}

.ktmt-divider {
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(15, 23, 42, .14), transparent);
}

.ktmt-toolbar {
    border: 1px solid var(--ktmt-border);
    border-radius: var(--ktmt-radius);
    background: #fff;
    box-shadow: var(--ktmt-shadow);
    padding: .9rem;
}

.ktmt-count-pill {
    border: 1px dashed rgba(15, 23, 42, .18);
    border-radius: 999px;
    padding: .35rem .65rem;
    font-size: .82rem;
    color: rgba(15, 23, 42, .72);
    background: rgba(248, 250, 252, .9);
}

.ktmt-empty {
    border: 1px dashed rgba(15, 23, 42, .18);
    border-radius: var(--ktmt-radius);
    padding: 1.25rem;
    background: rgba(248, 250, 252, .9);
    color: rgba(15, 23, 42, .7);
}

@media (prefers-reduced-motion: reduce) {
    .ktmt-pack {
        transition: none;
    }

    .ktmt-pack:hover {
        transform: none;
    }
}

/* SHOW TEST */
:root {
    --ktmt-radius: 18px;
    --ktmt-shadow: 0 .7rem 1.8rem rgba(15, 23, 42, .08);
    --ktmt-border: rgba(15, 23, 42, .10);
}

.ktmt-pack-hero {
    border: 1px solid var(--ktmt-border);
    border-radius: var(--ktmt-radius);
    box-shadow: var(--ktmt-shadow);
    background:
        radial-gradient(900px 420px at 10% 15%, rgba(13, 110, 253, .12), transparent 60%),
        radial-gradient(780px 360px at 95% 30%, rgba(25, 135, 84, .12), transparent 55%),
        #fff;
}

.ktmt-muted {
    color: rgba(15, 23, 42, .68);
}

.ktmt-pill {
    border-radius: 999px;
}

.ktmt-chip {
    display: inline-flex;
    align-items: center;
    gap: .45rem;
    padding: .38rem .65rem;
    border-radius: 999px;
    border: 1px solid rgba(15, 23, 42, .12);
    background: rgba(255, 255, 255, .9);
    font-size: .82rem;
    color: rgba(15, 23, 42, .85);
    white-space: nowrap;
}

.ktmt-card {
    border: 1px solid var(--ktmt-border);
    border-radius: var(--ktmt-radius);
    box-shadow: var(--ktmt-shadow);
    background: #fff;
}

.ktmt-kpi {
    border: 1px solid rgba(15, 23, 42, .12);
    border-radius: 16px;
    background: rgba(248, 250, 252, .9);
    padding: .85rem 1rem;
}

.ktmt-divider {
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(15, 23, 42, .14), transparent);
}

.sticky-top-lite {
    position: sticky;
    top: .9rem;
    z-index: 10;
}

.ktmt-step {
    display: flex;
    gap: .75rem;
    padding: .65rem .75rem;
    border-radius: 14px;
    border: 1px solid rgba(15, 23, 42, .10);
    background: rgba(255, 255, 255, .9);
}

.ktmt-step .dot {
    width: 28px;
    height: 28px;
    border-radius: 999px;
    display: grid;
    place-items: center;
    border: 1px solid rgba(15, 23, 42, .15);
    background: #fff;
    font-weight: 700;
    font-size: .85rem;
    color: rgba(15, 23, 42, .85);
    flex: 0 0 auto;
}

.ktmt-cta-btn {
    border-radius: 999px;
    padding: .85rem 1rem;
    font-weight: 700;
}

/* TAKE */
:root {
    --ktmt-radius: 18px;
    --ktmt-shadow: 0 .75rem 2rem rgba(15, 23, 42, .10);
    --ktmt-border: rgba(15, 23, 42, .10);
    --ktmt-muted: rgba(15, 23, 42, .70);
}

.ktmt-topbar {
    position: sticky;
    top: .75rem;
    z-index: 30;
    border: 1px solid var(--ktmt-border);
    border-radius: var(--ktmt-radius);
    box-shadow: var(--ktmt-shadow);
    background:
        radial-gradient(980px 420px at 12% 10%, rgba(13, 110, 253, .10), transparent 60%),
        radial-gradient(820px 380px at 90% 20%, rgba(25, 135, 84, .10), transparent 55%),
        #fff;
    padding: 1rem 1.1rem;
}

.ktmt-meta {
    color: var(--ktmt-muted);
    font-size: .9rem;
}

.ktmt-pill {
    border-radius: 999px;
}

.ktmt-chip {
    display: inline-flex;
    align-items: center;
    gap: .5rem;
    padding: .35rem .65rem;
    border-radius: 999px;
    border: 1px solid rgba(15, 23, 42, .12);
    background: rgba(255, 255, 255, .9);
    font-size: .82rem;
    color: rgba(15, 23, 42, .85);
    white-space: nowrap;
}

.ktmt-card {
    border: 1px solid var(--ktmt-border);
    border-radius: var(--ktmt-radius);
    box-shadow: var(--ktmt-shadow);
    background: #fff;
}

.sticky-side {
    position: sticky;
    top: calc(.75rem + 110px);
    z-index: 10;
}

.ktmt-qnav {
    display: flex;
    flex-wrap: wrap;
    gap: .4rem;
}

.ktmt-qbtn {
    width: 40px;
    height: 36px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 12px;
    border: 1px solid rgba(15, 23, 42, .14);
    background: #fff;
    color: rgba(15, 23, 42, .82);
    font-weight: 700;
    text-decoration: none;
    transition: transform .12s ease, box-shadow .12s ease, background .12s ease;
}

.ktmt-qbtn:hover {
    transform: translateY(-1px);
    box-shadow: 0 .5rem 1.2rem rgba(15, 23, 42, .10);
}

.ktmt-qbtn.is-answered {
    border-color: rgba(25, 135, 84, .25);
    background: rgba(25, 135, 84, .10);
    color: rgba(15, 23, 42, .9);
}

.ktmt-qbtn.is-current {
    outline: 3px solid rgba(13, 110, 253, .25);
    border-color: rgba(13, 110, 253, .35);
}

.ktmt-progress {
    height: 10px;
    border-radius: 999px;
    overflow: hidden;
    background: rgba(15, 23, 42, .06);
}

.ktmt-progress>div {
    height: 100%;
}

.ktmt-timer {
    font-variant-numeric: tabular-nums;
    letter-spacing: .02em;
}

.ktmt-save {
    display: inline-flex;
    align-items: center;
    gap: .5rem;
    font-size: .85rem;
    color: var(--ktmt-muted);
}

.ktmt-dot {
    width: 10px;
    height: 10px;
    border-radius: 999px;
    background: rgba(15, 23, 42, .25);
    box-shadow: 0 0 0 4px rgba(15, 23, 42, .06);
}

.ktmt-dot.saving {
    background: rgba(255, 193, 7, .9);
    box-shadow: 0 0 0 4px rgba(255, 193, 7, .15);
}

.ktmt-dot.saved {
    background: rgba(25, 135, 84, .9);
    box-shadow: 0 0 0 4px rgba(25, 135, 84, .15);
}

.ktmt-dot.error {
    background: rgba(220, 53, 69, .9);
    box-shadow: 0 0 0 4px rgba(220, 53, 69, .15);
}

.ktmt-question-title {
    letter-spacing: -.01em;
    line-height: 1.25;
}

.ktmt-stem {
    color: var(--ktmt-muted);
    white-space: pre-line;
}

.ktmt-option {
    border: 1px solid rgba(15, 23, 42, .12);
    border-radius: 14px;
    padding: .8rem .9rem;
    background: rgba(248, 250, 252, .85);
    transition: transform .12s ease, box-shadow .12s ease, border-color .12s ease;
}

.ktmt-option:hover {
    transform: translateY(-1px);
    box-shadow: 0 .55rem 1.3rem rgba(15, 23, 42, .10);
    border-color: rgba(13, 110, 253, .22);
    background: #fff;
}

.ktmt-option .form-check-input {
    margin-top: .2rem;
}

.ktmt-input {
    border-radius: 14px;
    border: 1px solid rgba(15, 23, 42, .14);
    box-shadow: none;
    padding: .85rem .95rem;
}

.ktmt-input:focus {
    border-color: rgba(13, 110, 253, .35);
    box-shadow: 0 0 0 .25rem rgba(13, 110, 253, .12);
}

@media (prefers-reduced-motion: reduce) {

    .ktmt-qbtn,
    .ktmt-option {
        transition: none;
    }

    .ktmt-qbtn:hover,
    .ktmt-option:hover {
        transform: none;
    }
}

/* CARD COURSE */
/* ===== Course Card v2 ===== */
.course-card--v2 {
    --ktmt-green: #198754;
    --ktmt-border: rgba(15, 23, 42, .08);
    --ktmt-shadow: 0 10px 30px rgba(15, 23, 42, .08);
    --ktmt-shadow-hover: 0 18px 45px rgba(15, 23, 42, .14);

    border: 1px solid var(--ktmt-border);
    border-radius: 18px;
    overflow: hidden;
    background: #fff;
    box-shadow: 0 6px 18px rgba(15, 23, 42, .06);
    transition: transform .18s ease, box-shadow .18s ease, border-color .18s ease;
}

.course-card--v2:hover {
    transform: translateY(-4px);
    box-shadow: var(--ktmt-shadow-hover);
    border-color: rgba(25, 135, 84, .20);
}

.course-card--v2:focus-within {
    box-shadow: 0 0 0 .2rem rgba(25, 135, 84, .15), var(--ktmt-shadow);
    border-color: rgba(25, 135, 84, .28);
}

/* ===== Thumbnail ===== */
.course-thumb {
    position: relative;
    aspect-ratio: 16 / 9;
    background: #f8fafc;
}

.course-thumb__img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    transform: scale(1.001);
    transition: transform .25s ease;
}

.course-card--v2:hover .course-thumb__img {
    transform: scale(1.03);
}

.course-thumb__placeholder {
    width: 100%;
    height: 100%;
    background:
        radial-gradient(1200px 400px at 10% 10%, rgba(25, 135, 84, .18), transparent 55%),
        radial-gradient(900px 360px at 90% 30%, rgba(13, 110, 253, .12), transparent 55%),
        linear-gradient(180deg, #f8fafc, #eef2f7);
}

.course-thumb__fade {
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, rgba(2, 6, 23, 0) 40%, rgba(2, 6, 23, .38) 100%);
    pointer-events: none;
}

.course-thumb__badges {
    position: absolute;
    left: 12px;
    right: 12px;
    bottom: 12px;
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
    align-items: center;
    z-index: 2;
}

/* ===== Badges ===== */
.course-tag,
.course-level,
.course-discount {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 6px 10px;
    border-radius: 999px;
    font-size: 12px;
    line-height: 1;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    box-shadow: 0 8px 18px rgba(2, 6, 23, .18);
    border: 1px solid rgba(255, 255, 255, .35);
    color: #fff;
}

.course-tag {
    background: rgba(25, 135, 84, .85);
}

.course-level {
    background: rgba(15, 23, 42, .68);
}

.course-discount {
    margin-left: auto;
    background: rgba(220, 53, 69, .88);
}

/* ===== Title + link ===== */
.course-title {
    font-size: 1.05rem;
    line-height: 1.25;
    letter-spacing: -.2px;
    margin-bottom: .35rem;
}

.course-link {
    color: #0f172a;
    text-decoration: none;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.course-card--v2:hover .course-link {
    color: #0b3d2a;
    text-decoration: underline;
    text-underline-offset: 3px;
}

/* ===== Description ===== */
.course-desc {
    color: rgba(15, 23, 42, .72);
    font-size: .92rem;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.course-desc p {
    margin: 0;
    /* tránh short_description có <p> bị giãn */
}

/* ===== Meta ===== */
.course-meta {
    color: rgba(15, 23, 42, .62);
    font-size: .9rem;
    margin: 0;
}

.course-meta i {
    opacity: .9;
}

/* ===== Footer / price ===== */
.course-footer {
    border-top: 1px dashed rgba(15, 23, 42, .10);
}

.course-price__old {
    font-size: .85rem;
    color: rgba(15, 23, 42, .45);
    text-decoration: line-through;
}

.course-price__new {
    font-weight: 700;
    color: var(--ktmt-green);
    font-size: 1.05rem;
}

.course-promo {
    margin-top: 4px;
    font-size: .82rem;
    color: #dc3545;
    font-weight: 600;
}

/* ===== Button ===== */
.btn-enroll {
    border-radius: 999px;
    padding: .45rem .9rem;
    box-shadow: 0 10px 18px rgba(25, 135, 84, .15);
    transition: transform .16s ease, box-shadow .16s ease;
}

.course-card--v2:hover .btn-enroll {
    transform: translateY(-1px);
    box-shadow: 0 16px 26px rgba(25, 135, 84, .22);
}

.train-title {
    line-height: 1.5;
    font-weight: 800;
    font-size: 24px;
    color: var(--kt-title);
    hyphens: auto;
    overflow-wrap: break-word;
}

@media (max-width: 575.98px) {
    .train-title {
        font-size: 18px;
    }
}