/* ==========================================================================
   TOPSOFT.VN - HỆ THỐNG GIAO DIỆN CHUNG
   Màu chủ đạo lấy từ logo: Xanh #0357A7 - Đỏ #D00F18
   ========================================================================== */

:root {
    --ts-blue: #0357A7;
    --ts-blue-600: #034b90;
    --ts-blue-700: #023c75;
    --ts-blue-50: #eef5fc;
    --ts-blue-100: #d9e8f7;
    --ts-red: #D00F18;
    --ts-red-600: #b10c14;
    --ts-red-50: #fdf0f0;
    --ts-navy: #061631;
    --ts-navy-2: #0a2450;
    --ts-ink: #0f1b2d;
    --ts-body: #3d4b60;
    --ts-muted: #56677d;
    --ts-line: #e2e8f1;
    --ts-soft: #f5f8fc;
    --ts-white: #ffffff;
    --ts-green: #047857;
    --ts-radius: 14px;
    --ts-radius-lg: 22px;
    --ts-shadow-sm: 0 1px 2px rgba(15, 27, 45, .06), 0 2px 8px rgba(15, 27, 45, .04);
    --ts-shadow: 0 10px 30px -12px rgba(6, 22, 49, .18), 0 4px 10px -6px rgba(6, 22, 49, .08);
    --ts-shadow-lg: 0 30px 60px -20px rgba(6, 22, 49, .35);
    --ts-font: "Be Vietnam Pro", "Segoe UI", system-ui, -apple-system, Roboto, Arial, sans-serif;
    /* Đồng bộ màu Bootstrap với thương hiệu để các trang con tự đổi theo */
    --bs-primary: #0357A7;
    --bs-primary-rgb: 3, 87, 167;
    --bs-danger: #D00F18;
    --bs-danger-rgb: 208, 15, 24;
    --bs-link-color: #0357A7;
    --bs-link-color-rgb: 3, 87, 167;
    --bs-link-hover-color: #023c75;
    --bs-link-hover-color-rgb: 2, 60, 117;
    --bs-body-font-family: var(--ts-font);
    --bs-body-color: #3d4b60;
    --bs-border-color: #e2e8f1;
}

html {
    font-size: 14px;
    position: relative;
    min-height: 100%;
    scroll-behavior: smooth;
    scroll-padding-top: 90px;
}

@media (min-width: 768px) {
    html { font-size: 16px; }
}

body {
    font-family: var(--ts-font);
    color: var(--ts-body);
    background: #fff;
    -webkit-font-smoothing: antialiased;
    text-rendering: optimizeLegibility;
}

/* Không ép màu tiêu đề: để tiêu đề kế thừa màu chữ của khối chứa (trắng trên nền tối) */
h1, h2, h3, h4, h5, h6, .h1, .h2, .h3, .h4, .h5, .h6 {
    letter-spacing: -.01em;
}

a { color: var(--ts-blue); }
a:hover { color: var(--ts-blue-700); }

::selection { background: rgba(3, 87, 167, .18); }

/* ----- Bootstrap: nút, form theo màu thương hiệu ----- */
.btn-primary {
    --bs-btn-bg: var(--ts-blue);
    --bs-btn-border-color: var(--ts-blue);
    --bs-btn-hover-bg: var(--ts-blue-600);
    --bs-btn-hover-border-color: var(--ts-blue-600);
    --bs-btn-active-bg: var(--ts-blue-700);
    --bs-btn-active-border-color: var(--ts-blue-700);
    --bs-btn-disabled-bg: var(--ts-blue);
    --bs-btn-disabled-border-color: var(--ts-blue);
}

.btn-outline-primary {
    --bs-btn-color: var(--ts-blue);
    --bs-btn-border-color: var(--ts-blue);
    --bs-btn-hover-bg: var(--ts-blue);
    --bs-btn-hover-border-color: var(--ts-blue);
    --bs-btn-active-bg: var(--ts-blue-600);
    --bs-btn-active-border-color: var(--ts-blue-600);
}

.btn-danger {
    --bs-btn-bg: var(--ts-red);
    --bs-btn-border-color: var(--ts-red);
    --bs-btn-hover-bg: var(--ts-red-600);
    --bs-btn-hover-border-color: var(--ts-red-600);
    --bs-btn-active-bg: var(--ts-red-600);
    --bs-btn-active-border-color: var(--ts-red-600);
}

.btn-outline-danger {
    --bs-btn-color: var(--ts-red);
    --bs-btn-border-color: var(--ts-red);
    --bs-btn-hover-bg: var(--ts-red);
    --bs-btn-hover-border-color: var(--ts-red);
}

.nav-pills .nav-link.active, .nav-pills .show > .nav-link {
    color: #fff;
    background-color: var(--ts-blue);
}

.btn:focus-visible, .btn:active:focus, .btn-link.nav-link:focus-visible, .form-control:focus, .form-select:focus, .form-check-input:focus {
    box-shadow: 0 0 0 .2rem rgba(3, 87, 167, .25);
    border-color: rgba(3, 87, 167, .5);
}

.form-check-input:checked { background-color: var(--ts-blue); border-color: var(--ts-blue); }

.form-floating > .form-control-plaintext::placeholder, .form-floating > .form-control::placeholder {
    color: var(--bs-secondary-color);
    text-align: end;
}

.form-floating > .form-control-plaintext:focus::placeholder, .form-floating > .form-control:focus::placeholder {
    text-align: start;
}

.dropdown-item.active, .dropdown-item:active { background-color: var(--ts-blue); }

/* ----- Nút dùng chung ----- */
.ts-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: .25rem;
    font-weight: 600;
    border-radius: 999px;
    padding: .8rem 1.5rem;
    border: 2px solid transparent;
    line-height: 1.2;
    text-decoration: none;
    transition: transform .2s ease, box-shadow .2s ease, background-color .2s ease, color .2s ease, border-color .2s ease;
    white-space: nowrap;
}

.ts-btn:hover { transform: none; }
.ts-btn-sm { padding: .55rem 1.1rem; font-size: .92rem; }

.ts-btn-red { background: var(--ts-red); color: #fff; }
.ts-btn-red:hover, .ts-btn-red:focus { background: var(--ts-red-600); color: #fff; }

.ts-btn-blue { background: var(--ts-blue); color: #fff; }
.ts-btn-blue:hover, .ts-btn-blue:focus { background: var(--ts-blue-600); color: #fff; }

.ts-btn-ghost { background: #fff; color: var(--ts-ink); border-color: var(--ts-line); }
.ts-btn-ghost:hover, .ts-btn-ghost:focus { color: var(--ts-blue); border-color: var(--ts-blue); }

.ts-btn-outline { background: #fff; color: var(--ts-blue); border-color: var(--ts-blue-100); }
.ts-btn-outline:hover, .ts-btn-outline:focus { border-color: var(--ts-blue); color: var(--ts-blue); }

.ts-ring { display: inline-block; }

@keyframes ts-ring {
    0%, 70%, 100% { transform: rotate(0); }
    75% { transform: rotate(-14deg); }
    80% { transform: rotate(12deg); }
    85% { transform: rotate(-10deg); }
    90% { transform: rotate(8deg); }
}

/* ==========================================================================
   HEADER
   ========================================================================== */
.ts-topbar {
    background: var(--ts-soft);
    border-bottom: 1px solid var(--ts-line);
    color: var(--ts-body);
    font-size: .78rem;
    padding: .4rem 0;
}

.ts-topbar a { color: var(--ts-body); text-decoration: none; transition: color .2s; }
.ts-topbar a:hover { color: var(--ts-blue); }

.ts-topbar-badge {
    background: var(--ts-red-50);
    color: var(--ts-red);
    font-weight: 700;
    font-size: .68rem;
    border-radius: 999px;
    padding: .1rem .55rem;
    text-transform: uppercase;
    letter-spacing: .04em;
}

.ts-navbar {
    background: #fff;
    border-bottom: 1px solid var(--ts-line);
    padding: .75rem 0;
    transition: box-shadow .25s ease, border-color .25s ease, padding .25s ease;
}

.ts-navbar.is-scrolled {
    box-shadow: 0 6px 16px -14px rgba(6, 22, 49, .3);
    padding: .5rem 0;
}

.ts-brand { display: flex; align-items: center; gap: .65rem; text-decoration: none; margin-right: 1.5rem; }
.ts-brand img { width: 44px; height: 44px; }
.ts-brand-text { display: flex; flex-direction: column; line-height: 1.1; padding-left: .65rem; border-left: 1px solid var(--ts-line); }
.ts-brand-name { font-weight: 800; font-size: 1.28rem; color: var(--ts-blue); letter-spacing: -.02em; }
.ts-brand-name span { color: var(--ts-red); }
.ts-brand-tag { font-size: .7rem; font-weight: 600; color: var(--ts-muted); letter-spacing: .02em; margin-top: 2px; }

.ts-nav-link {
    position: relative;
    color: var(--ts-ink) !important;
    font-weight: 600;
    font-size: .95rem;
    padding: .55rem .9rem !important;
    border-radius: 10px;
    transition: color .2s, background-color .2s;
}

.ts-nav-link:hover, .ts-nav-link:focus, .ts-nav-link.show { color: var(--ts-blue) !important; background: var(--ts-blue-50); }
.ts-nav-link.active { color: var(--ts-blue) !important; }

@media (min-width: 992px) {
    .ts-nav-link.active::after {
        content: "";
        position: absolute;
        left: .9rem;
        right: .9rem;
        bottom: .15rem;
        height: 2px;
        border-radius: 2px;
        background: var(--ts-red);
    }
}

.ts-nav-link.dropdown-toggle::after { border: 0; content: "\F282"; font-family: "bootstrap-icons"; font-size: .7rem; vertical-align: middle; margin-left: .35rem; transition: transform .2s; }
.ts-nav-link.dropdown-toggle.show::after { transform: rotate(180deg); }

.ts-dropdown {
    border: 1px solid var(--ts-line);
    border-radius: var(--ts-radius);
    box-shadow: var(--ts-shadow);
    padding: .5rem;
    margin-top: .5rem !important;
    animation: ts-drop .18s ease-out;
}

@keyframes ts-drop { from { opacity: 0; transform: translateY(6px); } to { opacity: 1; transform: none; } }

.ts-dropdown .dropdown-item { border-radius: 10px; padding: .55rem .8rem; font-weight: 500; color: var(--ts-ink); }
.ts-dropdown .dropdown-item i { color: var(--ts-red); margin-right: .6rem; }
.ts-dropdown .dropdown-item:hover { background: var(--ts-blue-50); color: var(--ts-blue); }
.ts-dropdown .dropdown-item.active { background: var(--ts-blue); color: #fff; }
.ts-dropdown .dropdown-item.active i { color: #fff; }

@media (min-width: 992px) {
    .ts-mega { width: 720px; left: 50% !important; margin-left: -360px; padding: 1.25rem; }
}

.ts-mega-title { font-size: .7rem; font-weight: 700; letter-spacing: .1em; text-transform: uppercase; color: var(--ts-red); margin: 0 0 .5rem .5rem; }

.ts-mega-item { display: flex; gap: .8rem; align-items: center; padding: .6rem .5rem; border-radius: 12px; text-decoration: none; transition: background-color .2s; }
.ts-mega-item:hover { background: var(--ts-blue-50); }
.ts-mega-item b { display: block; color: var(--ts-ink); font-weight: 700; font-size: .92rem; }
.ts-mega-item small { display: block; color: var(--ts-muted); font-size: .78rem; }
.ts-mega-icon { width: 40px; height: 40px; flex: none; border-radius: 11px; display: grid; place-items: center; background: var(--ts-blue-50); color: var(--ts-blue); font-size: 1.15rem; transition: background-color .2s, color .2s; }
.ts-mega-item:hover .ts-mega-icon { background: var(--ts-blue); color: #fff; }

.ts-mega-link { display: flex; align-items: center; gap: .6rem; padding: .45rem .5rem; border-radius: 10px; color: var(--ts-body); text-decoration: none; font-size: .88rem; font-weight: 500; }
.ts-mega-link i { color: var(--ts-muted); }
.ts-mega-link:hover { background: var(--ts-soft); color: var(--ts-blue); }
.ts-mega-link:hover i { color: var(--ts-red); }

.ts-pill-free { background: #dcfce7; color: #047857; font-size: .68rem; font-weight: 700; border-radius: 999px; padding: .1rem .5rem; }

.ts-mega-all {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 1rem;
    padding: .8rem 1rem;
    border-radius: 12px;
    background: var(--ts-blue);
    color: #fff;
    font-weight: 600;
    text-decoration: none;
}
.ts-mega-all:hover { color: #fff; background: var(--ts-blue-600); }

@media (max-width: 991.98px) {
    .ts-navbar .navbar-collapse { padding: .75rem 0 .5rem; }
    .ts-mega { box-shadow: none; border: 0; padding: .25rem 0 .5rem; }
    .ts-brand-name { font-size: 1.12rem; }
}

/* ==========================================================================
   FOOTER
   ========================================================================== */
.ts-footer {
    background: var(--ts-soft);
    border-top: 1px solid var(--ts-line);
    color: var(--ts-body);
    font-size: .9rem;
    padding: 3.5rem 0 1.5rem;
}

.ts-footer a { color: var(--ts-body); text-decoration: none; transition: color .2s; }
.ts-footer a:hover { color: var(--ts-blue); }

.ts-footer-brand { display: inline-flex; align-items: center; gap: .75rem; margin-bottom: 1rem; }
.ts-footer-logo { width: 48px; height: 48px; border-radius: 12px; background: #fff; border: 1px solid var(--ts-line); display: grid; place-items: center; }
.ts-footer-brand b { display: block; color: var(--ts-ink); font-size: 1.15rem; font-weight: 800; letter-spacing: .06em; }
.ts-footer-brand small { display: block; color: var(--ts-muted); font-size: .78rem; }

.ts-footer-desc { line-height: 1.7; max-width: 380px; }

.ts-footer-awards { display: flex; flex-wrap: wrap; gap: .5rem; }
.ts-footer-awards span { font-size: .75rem; font-weight: 600; color: var(--ts-ink); background: #fff; border: 1px solid var(--ts-line); border-radius: 999px; padding: .3rem .7rem; }
.ts-footer-awards i { color: #b45309; margin-right: .3rem; }

.ts-footer-title { color: var(--ts-ink); font-size: .8rem; font-weight: 700; letter-spacing: .1em; text-transform: uppercase; margin-bottom: 1.1rem; }

.ts-footer-contact, .ts-footer-links { list-style: none; padding: 0; margin: 0; }
.ts-footer-contact li { display: flex; gap: .7rem; margin-bottom: .8rem; line-height: 1.55; }
.ts-footer-contact i { color: var(--ts-blue); margin-top: .15rem; }
.ts-footer-links li { margin-bottom: .6rem; }
.ts-footer-hot { color: var(--ts-red) !important; font-weight: 600; }

.ts-bank { background: #fff; border: 1px solid var(--ts-line); border-left: 3px solid var(--ts-blue); border-radius: 12px; padding: .8rem 1rem; margin-bottom: .7rem; }
.ts-bank small { display: block; color: var(--ts-ink); font-weight: 600; font-size: .74rem; text-transform: uppercase; letter-spacing: .05em; }
.ts-bank b { display: block; color: var(--ts-ink); font-family: ui-monospace, Consolas, monospace; font-size: 1.02rem; letter-spacing: .04em; margin: .2rem 0; }
.ts-bank span { font-size: .78rem; }

.ts-footer-bottom {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    gap: .75rem;
    margin-top: 2.5rem;
    padding-top: 1.25rem;
    border-top: 1px solid var(--ts-line);
    font-size: .8rem;
    color: var(--ts-muted);
}

/* Nút Zalo nổi */
.zalo-floating-btn {
    position: fixed !important;
    bottom: 28px !important;
    right: 20px !important;
    width: 56px;
    height: 56px;
    background-color: #0068ff;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1040 !important;
    box-shadow: 0 6px 16px -6px rgba(0, 104, 255, .5);
    transition: transform .2s ease, box-shadow .2s ease;
    text-decoration: none !important;
}


.zalo-floating-btn img { width: 32px; height: 32px; }

.zalo-floating-btn .zalo-tooltip {
    visibility: hidden;
    opacity: 0;
    width: max-content;
    background-color: rgba(6, 22, 49, .92);
    color: #fff;
    border-radius: 8px;
    padding: 5px 10px;
    position: absolute;
    right: 66px;
    top: 50%;
    transform: translateY(-50%);
    transition: opacity .2s ease, visibility .2s ease;
    font-size: 13px;
    font-weight: 600;
    white-space: nowrap;
    pointer-events: none;
}

.zalo-floating-btn:hover { transform: translateY(-3px); }
.zalo-floating-btn:hover .zalo-tooltip { visibility: visible; opacity: 1; }

/* ==========================================================================
   HIỆU ỨNG XUẤT HIỆN KHI CUỘN (chỉ bật khi có JavaScript)
   ========================================================================== */
.js-reveal .ts-reveal { opacity: 0; transform: translateY(10px); transition: opacity .5s ease, transform .5s ease; }
.js-reveal .ts-reveal.is-visible { opacity: 1; transform: none; }

@media (prefers-reduced-motion: reduce) {
    html { scroll-behavior: auto; }
    .js-reveal .ts-reveal { opacity: 1; transform: none; transition: none; }
    .ts-ring { animation: none; }
}

/* ==========================================================================
   CÁC LỚP TIỆN ÍCH CŨ - GIỮ LẠI CHO CÁC TRANG CON
   ========================================================================== */
.text-navy { color: var(--ts-navy-2) !important; }

.text-justify-custom { text-align: justify; font-size: .925rem; line-height: 1.6; }

.card-hover-effect { transition: transform .3s ease, box-shadow .3s ease; }
.card-hover-effect:hover { transform: translateY(-3px); box-shadow: var(--ts-shadow) !important; }

.box-shadow { box-shadow: 0 .25rem .75rem rgba(0, 0, 0, .05); }

button.accept-policy { font-size: 1rem; line-height: inherit; }

.object-fit-cover { object-fit: cover; }

.style-event-banner { border-top-left-radius: calc(.5rem - 1px); border-top-right-radius: calc(.5rem - 1px); }

.event-card-fixed { transition: transform .3s ease; }
.event-card-fixed:hover { transform: translateY(-3px); }

.hero-image-wrapper { height: 300px; display: flex; align-items: center; justify-content: center; overflow: hidden; }

.style-pc-frame {
    background: rgba(255, 255, 255, .1);
    border: 1px solid rgba(255, 255, 255, .2);
    transition: all .3s ease;
    max-width: 100%;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}
.style-pc-frame:hover { transform: scale(1.02); }

@media (min-width: 576px) {
    #heroCarousel .text-white-50 { min-height: 72px; }
}

.icon-contact-box {
    width: 45px;
    height: 45px;
    border-radius: 50%;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    font-size: 1.25rem;
}

.icon-box-circle {
    width: 84px;
    height: 84px;
    border-radius: 50%;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.bg-danger-light { background-color: var(--ts-red-50) !important; }

.line-clamp-2 { display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.line-clamp-3 { display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden; }
.shadow-xs { box-shadow: 0 2px 4px rgba(0, 0, 0, .03); }