/* ==========================================
   CÀI ĐẶT CHUNG (RESET & VARIABLES)
=========================================== */
:root {
    --primary-blue: #1ca6ec;
    --dark-blue: #1585be;
    --light-blue: #e8f7ff;
    --accent-red: #ff3b30;
    --accent-yellow: #ffcc00;
    --text-dark: #333333;
    --white: #ffffff;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Roboto', sans-serif;
}

body {
    background-color: #f4f9fd;
    color: var(--text-dark);
    overflow-x: hidden;
}

a {
    text-decoration: none;
    color: inherit;
}

.container {
    max-width: 1220px;
    margin: 0 auto;
    padding: 0 15px;
}

.desktop-view {
    display: block;
}
.mobile-view {
    display: none;
}

/* ==========================================
   CSS HEADER MÁY TÍNH (CAO HƠN CHUẨN BẢN GỐC)
=========================================== */
.pc-topbar {
    background-color: var(--dark-blue);
    color: var(--white);
    height: 90px; /* Tăng chiều cao thanh trên */
    display: flex;
    align-items: center;
    font-size: 13px;
}

.pc-topbar-inner {
    width: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.pc-top-links a {
    margin-right: 18px;
    font-family: Georgia, 'Times New Roman', serif;
    font-size: 13.5px;
    opacity: 0.95;
    transition: 0.2s;
}

.pc-top-links a:hover {
    color: var(--accent-yellow);
}

.pc-auth {
    display: flex;
    align-items: center;
    gap: 12px;
}

.btn-pc-login {
    background: rgba(255, 255, 255, 0.15);
    border: 1px solid var(--white);
    color: var(--white);
    padding: 6px 20px;
    border-radius: 4px;
    cursor: pointer;
    font-size: 13px;
    font-weight: 600;
    transition: 0.2s;
}

.btn-pc-login:hover {
    background: rgba(255, 255, 255, 0.25);
}

.btn-pc-register {
    background: var(--white);
    color: var(--dark-blue);
    border: none;
    padding: 7px 20px;
    border-radius: 4px;
    font-weight: 700;
    cursor: pointer;
    position: relative;
    font-size: 13px;
}

.badge-58k {
    position: absolute;
    top: -9px;
    right: -6px;
    background: var(--accent-red);
    color: var(--white);
    font-size: 10px;
    padding: 1px 6px;
    border-radius: 10px;
    font-weight: bold;
    box-shadow: 0 2px 4px rgba(0,0,0,0.2);
}

.vn-flag {
    width: 26px;
    height: 26px;
    background: #da251d;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #ffff00;
    font-size: 13px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.15);
}

/* Thanh Navbar Chính PC (Tăng chiều cao lên 72px) */
.pc-navbar {
    background: var(--primary-blue);
    color: var(--white);
    height: 72px;
    display: flex;
    align-items: center;
    box-shadow: 0 3px 8px rgba(0,0,0,0.08);
    position: relative;
    z-index: 50;
}

.pc-navbar-inner {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo-link {
    display: flex;
    align-items: center;
}

.pc-logo-img {
    height: 52px; /* Kích thước logo nổi bật chuẩn bản gốc */
    width: auto;
    object-fit: contain;
    display: block;
}

.pc-menu {
    display: flex;
    align-items: center;
    gap: 18px;
}

.pc-menu a {
    font-size: 13.5px;
    font-weight: 600;
    padding: 8px 2px;
    transition: 0.2s;
    border-bottom: 2px solid transparent;
    white-space: nowrap;
}

.pc-menu a:hover {
    color: var(--accent-yellow);
    border-bottom-color: var(--accent-yellow);
}

/* ==========================================
   CSS BANNER SLIDER TỰ ĐỘNG TRƯỢT VÒNG LẶP
=========================================== */
.banner-slider {
    width: 100%;
    position: relative;
    overflow: hidden;
    /* Màu nền chuyển sắc đồng bộ với 2 bên rìa ảnh banner gốc */
    background: linear-gradient(90deg, #bbe5ff 0%, #e8f7ff 50%, #bbe5ff 100%);
}

.slider-track {
    display: flex;
    width: 100%;
    transition: transform 0.6s ease-in-out;
}

.banner-slider .slide {
    min-width: 100%;
    flex-shrink: 0;
    display: flex;
    justify-content: center;
    align-items: center;
}

/* Giới hạn chiều cao Banner trên Máy tính (PC) chuẩn bản gốc */
#pcBannerSlider .slide img {
    width: 100%;
    height: 360px; /* Chiều cao chuẩn giống Hình 2 bản gốc (có thể chỉnh từ 340px - 380px tùy ý) */
    object-fit: contain; /* Giữ nguyên vẹn 100% nội dung ảnh, không bị cắt đầu hay mất chữ */
    display: block;
}

/* Chấm tròn điều hướng dưới đáy Banner */
.slider-dots {
    position: absolute;
    bottom: 12px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 8px;
    z-index: 10;
}

.slider-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: rgba(25, 157, 224, 0.35);
    cursor: pointer;
    transition: all 0.3s ease;
}

.slider-dot.active {
    width: 22px;
    border-radius: 10px;
    background: var(--primary-blue);
}

/* ==========================================
   MARQUEE & NỘI DUNG CHÍNH PC
=========================================== */
.pc-marquee-bar {
    background: var(--primary-blue);
    color: var(--white);
    padding: 9px 0;
    font-size: 13px;
}

.marquee-inner {
    display: flex;
    align-items: center;
    gap: 10px;
}

.marquee-wrapper {
    overflow: hidden;
    white-space: nowrap;
    width: 100%;
}

.marquee-wrapper p {
    display: inline-block;
    padding-left: 100%;
    animation: marquee 24s linear infinite;
}

@keyframes marquee {
    0% { transform: translate(0, 0); }
    100% { transform: translate(-100%, 0); }
}

/* ==========================================
   NỘI DUNG CHÍNH PC (TÍNH NĂNG & ĐẠI SỨ)
=========================================== */
.pc-main {
    padding: 30px 15px 50px 15px;
}

/* Thanh tiêu đề vát góc chéo bên phải giống bản gốc */
.section-header-wrapper {
    border-bottom: 2px solid var(--primary-blue);
    margin-bottom: 20px;
}

.section-header-tab {
    background: linear-gradient(90deg, #1ca6ec 0%, #0d87c9 100%);
    color: var(--white);
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 10px 45px 10px 20px;
    border-radius: 8px 0 0 0;
    font-weight: 500;
    font-size: 16px;
    font-family: Georgia, 'Times New Roman', serif;
    /* Cắt vát chéo cạnh bên phải giống hệt ảnh gốc */
    clip-path: polygon(0 0, 86% 0, 100% 100%, 0% 100%);
}

/* 4 Cột Tính Năng Vượt Trội */
.pc-features {
    background: transparent;
    padding: 10px 0 25px 0;
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 15px;
    margin-bottom: 30px;
}

.feature-item {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 16px;
    border-right: 1px solid #99cde8;
    padding: 5px 10px;
}

.feature-item:last-child {
    border-right: none;
}

.feature-icon-img {
    width: 78px;
    height: 78px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.feature-icon-img img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    filter: drop-shadow(0 4px 8px rgba(28, 166, 236, 0.2));
    transition: transform 0.3s ease;
}

.feature-item:hover .feature-icon-img img {
    transform: translateY(-4px) scale(1.05);
}

.feature-text {
    font-family: Georgia, 'Times New Roman', serif;
    font-weight: 500;
    color: #2b82ad;
    font-size: 14.5px;
}

/* Khu vực Đại Sứ Thương Hiệu & Video */
.pc-ambassador-section {
    display: grid;
    grid-template-columns: 1.05fr 0.95fr;
    gap: 30px;
    align-items: center;
}

.amb-col-left {
    width: 100%;
    display: flex;
    justify-content: center;
}

/* Ảnh Đại Sứ daisu.jpg */
.amb-full-img {
    width: 100%;
    max-width: 580px;
    height: auto;
    display: block;
    border-radius: 12px;
    object-fit: contain;
}

/* Khung Video bên phải */
.video-box {
    width: 100%;
    border-radius: 16px;
    overflow: hidden;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.18);
    background: #000;
    aspect-ratio: 16 / 9;
}

.amb-video {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.pc-floating-right {
    position: fixed;
    right: 15px;
    top: 50%;
    transform: translateY(-50%);
    display: flex;
    flex-direction: column;
    gap: 10px;
    z-index: 999;
}

.pc-floating-right a,
.pc-floating-right .close-float {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: var(--primary-blue);
    color: var(--white);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    border: 2px solid var(--white);
    box-shadow: 0 3px 8px rgba(0,0,0,0.2);
    cursor: pointer;
    transition: 0.2s;
}

.pc-floating-right a:hover {
    transform: scale(1.1);
    background: var(--dark-blue);
}

.pc-maintenance-box {
    position: fixed;
    bottom: 0;
    left: 20px;
    background: #333;
    color: #fff;
    padding: 8px 30px;
    border-radius: 8px 8px 0 0;
    font-size: 13px;
    z-index: 999;
}


/* ==========================================
   CSS GIAO DIỆN ĐIỆN THOẠI (MOBILE <= 768px)
=========================================== */
@media screen and (max-width: 768px) {
    .desktop-view {
        display: none;
    }
    .mobile-view {
        display: block;
        max-width: 480px;
        margin: 0 auto;
        background: #f2f8fc;
        min-height: 100vh;
        padding-bottom: 70px;
    }

    /* Header Mobile */
    .mb-header {
        background: var(--white); /* Đồng bộ nền xanh với ảnh log-pc.webp */
        padding: 10px 12px;
        display: flex;
        align-items: center;
        justify-content: space-between;
        position: sticky;
        top: 0;
        z-index: 100;
        box-shadow: 0 2px 6px rgba(0,0,0,0.1);
    }

    .mb-logo-img {
        height: 36px;
        width: auto;
        display: block;
        object-fit: contain;
    }

    .mb-auth {
        display: flex;
        align-items: center;
        gap: 6px;
    }

    .btn-mb-reg {
        background: var(--dark-blue);
        color: var(--white);
        border: none;
        padding: 6px 12px;
        border-radius: 20px;
        font-size: 12px;
        font-weight: 700;
        position: relative;
    }

    .btn-mb-login {
        background: var(--dark-blue);
        color: var(--white);
        border: 1px solid rgba(255,255,255,0.6);
        padding: 6px 12px;
        border-radius: 20px;
        font-size: 12px;
        font-weight: 700;
    }

    /* Banner Slider Mobile */
    .mb-banner-slider .slide img {
        height: 155px;
        object-fit: cover;
    }

    /* Marquee Mobile */
    .mb-marquee {
        background: var(--white);
        padding: 6px 12px;
        display: flex;
        align-items: center;
        gap: 8px;
        font-size: 12px;
        color: #444;
        border-bottom: 1px solid #e1eef6;
    }

    .mb-marquee i {
        color: var(--primary-blue);
    }

    /* 5 Nút Chức Năng Nhanh */
    .mb-quick-nav {
        background: var(--white);
        padding: 12px 8px;
        display: grid;
        grid-template-columns: repeat(5, 1fr);
        text-align: center;
        margin-bottom: 8px;
    }

    .quick-item {
        display: flex;
        flex-direction: column;
        align-items: center;
        gap: 5px;
    }

    .quick-icon {
        width: 40px;
        height: 40px;
        border-radius: 50%;
        border: 1.5px solid var(--primary-blue);
        color: var(--primary-blue);
        display: flex;
        align-items: center;
        justify-content: center;
        font-size: 16px;
        position: relative;
    }

    .badge-188k {
        position: absolute;
        top: -8px;
        right: -12px;
        background: var(--accent-red);
        color: #fff;
        font-size: 9px;
        padding: 1px 4px;
        border-radius: 6px;
    }

    .quick-item span {
        font-size: 11px;
        color: var(--dark-blue);
        font-weight: 500;
    }

    /* Khu vực Game Mobile */
    .mb-main-body {
        display: flex;
        padding: 0 8px;
        gap: 8px;
    }

    .mb-sidebar {
        width: 72px;
        flex-shrink: 0;
        display: flex;
        flex-direction: column;
        gap: 6px;
    }

    .side-tab {
        background: var(--white);
        border-radius: 10px;
        padding: 8px 4px;
        display: flex;
        flex-direction: column;
        align-items: center;
        justify-content: center;
        gap: 4px;
        color: var(--primary-blue);
        box-shadow: 0 2px 4px rgba(0,0,0,0.03);
        cursor: pointer;
        border: 1px solid #e1eef6;
    }

    .side-tab i {
        font-size: 18px;
    }

    .side-tab span {
        font-size: 10px;
        font-weight: 600;
        text-align: center;
    }

    .side-tab.active {
        background: linear-gradient(180deg, #2bbaff 0%, #108bd1 100%);
        color: var(--white);
        border-color: transparent;
    }

    .text-red {
        color: #ff3b30 !important;
    }

    /* Lưới Game 3 Cột dùng ảnh nguyên thẻ */
    .mb-game-grid {
        flex: 1;
        display: grid;
        grid-template-columns: repeat(3, 1fr);
        gap: 8px;
        align-content: start;
    }

    .game-card {
        position: relative;
        border-radius: 10px;
        overflow: hidden;
        display: flex;
        align-items: center;
        justify-content: center;
        background: transparent;
        cursor: pointer;
        transition: transform 0.15s ease;
    }

    .game-card:active {
        transform: scale(0.96);
    }

    /* Hình ảnh thẻ game tải về (1.png, 2.png...) */
    .game-full-img {
        width: 100%;
        height: auto;
        display: block;
        object-fit: contain;
    }

    /* Nút Trái Tim Yêu Thích đè lên góc trên bên phải của ảnh */
    .fav-btn {
        position: absolute;
        top: 6px;
        right: 6px;
        font-size: 13px;
        color: #8c9ba5;
        z-index: 5;
        cursor: pointer;
        padding: 2px;
        transition: transform 0.2s ease, color 0.2s ease;
    }

    .fav-btn.liked {
        color: var(--accent-red);
        transform: scale(1.15);
    }

    /* Bottom Navigation Mobile */
    .mb-bottom-nav {
        position: fixed;
        bottom: 0;
        left: 0;
        right: 0;
        max-width: 480px;
        margin: 0 auto;
        background: var(--white);
        display: grid;
        grid-template-columns: repeat(5, 1fr);
        padding: 8px 0;
        border-top: 1px solid #d8edf8;
        box-shadow: 0 -2px 10px rgba(0,0,0,0.05);
        z-index: 100;
    }

    .bottom-item {
        display: flex;
        flex-direction: column;
        align-items: center;
        gap: 3px;
        color: #5a9bc2;
        font-size: 10px;
        font-weight: 600;
    }

    .bottom-item i {
        font-size: 28px;
    }

    .bottom-item.active {
        color: var(--primary-blue);
    }
}
/* ==========================================
   CSS MODAL ĐĂNG KÝ & ĐĂNG NHẬP (PC & MOBILE)
=========================================== */
.auth-modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 28, 48, 0.65);
    backdrop-filter: blur(3px);
    display: none; /* Mặc định ẩn, bật bằng JS */
    align-items: center;
    justify-content: center;
    z-index: 9999;
    padding: 15px;
    overflow-y: auto;
}

.auth-modal-overlay.active {
    display: flex;
}

.auth-modal-box {
    background: linear-gradient(180deg, #e3f3fc 0%, #c8e8fa 100%);
    border: 3px solid #ffffff;
    border-radius: 24px;
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.3);
    position: relative;
    padding: 25px 30px;
    width: 100%;
    display: none;
    animation: modalPop 0.25s ease-out;
}

.auth-modal-box.active {
    display: block;
}

@keyframes modalPop {
    from { opacity: 0; transform: scale(0.94); }
    to { opacity: 1; transform: scale(1); }
}

/* Kích thước khung trên Máy tính (PC) */
.modal-register {
    max-width: 720px;
}

.modal-login {
    max-width: 470px;
}

/* Nút đóng (X) */
.auth-close-btn {
    position: absolute;
    top: 14px;
    right: 18px;
    background: transparent;
    border: none;
    font-size: 34px;
    line-height: 1;
    color: #26a0da;
    cursor: pointer;
    transition: 0.2s;
}

.auth-close-btn:hover {
    color: var(--accent-red);
    transform: rotate(90deg);
}

/* Phần Đầu Modal (Logo + Đại sứ) */
.auth-header {
    text-align: center;
    margin-bottom: 14px;
}

.auth-logo {
    height: 58px;
    width: auto;
    object-fit: contain;
    margin-bottom: 4px;
}

.auth-slogan {
    color: #199de0;
    font-size: 20px;
    font-weight: 900;
    letter-spacing: 0.5px;
    margin-bottom: 2px;
}

.auth-sub-slogan {
    color: #199de0;
    font-size: 14px;
    font-weight: 700;
    margin-bottom: 8px;
}

.auth-ambassadors {
    max-width: 500px;
    margin: 0 auto;
}

.auth-amb-img {
    width: 100%;
    max-height: 120px;
    object-fit: contain;
    display: block;
    margin: 0 auto;
}

.auth-amb-names {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    font-size: 10.5px;
    font-weight: 700;
    color: #111;
    margin-top: -6px;
    text-align: center;
}

/* Bố cục lưới Input */
.reg-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px 16px;
    margin-bottom: 18px;
}

.login-stack {
    display: flex;
    flex-direction: column;
    gap: 12px;
    margin-bottom: 12px;
}

.form-group {
    display: flex;
    flex-direction: column;
}

.input-box {
    background: #ffffff;
    border: 1px solid #c2dff0;
    border-radius: 10px;
    height: 44px;
    display: flex;
    align-items: center;
    padding: 0 12px;
    transition: 0.2s;
}

.input-box:focus-within {
    border-color: #199de0;
    box-shadow: 0 0 0 2px rgba(25, 157, 224, 0.2);
}

.input-box.input-error {
    border-color: #ff3b30;
    background: #fff8f8;
}

.input-icon {
    color: #29a3e3;
    font-size: 16px;
    margin-right: 10px;
    width: 18px;
    text-align: center;
}

.input-box input {
    border: none;
    outline: none;
    background: transparent;
    width: 100%;
    font-size: 13.5px;
    color: #333;
}

.input-box input::placeholder {
    color: #a6b7c2;
}

.toggle-pwd {
    color: #8898a4;
    cursor: pointer;
    font-size: 16px;
    padding-left: 8px;
}

/* Ô Số Điện Thoại +84 */
.phone-box {
    padding-left: 0;
    overflow: hidden;
}

.country-prefix {
    background: #f0f4f8;
    height: 100%;
    padding: 0 10px;
    display: flex;
    align-items: center;
    gap: 5px;
    border-right: 1px solid #d8e6f0;
    color: #666;
    font-size: 11px;
}

.vn-mini-flag {
    width: 20px;
    height: 14px;
    background: #da251d;
    color: #ffff00;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 8px;
    border-radius: 2px;
}

.dial-code {
    font-weight: 600;
    color: #222;
    font-size: 13.5px;
    padding: 0 6px 0 10px;
}

/* Thông báo lỗi dưới từng ô */
.error-msg {
    color: #e61919;
    font-size: 11px;
    min-height: 15px;
    margin-top: 3px;
    padding-left: 4px;
    font-weight: 500;
}

/* Checkbox Điều khoản */
.terms-group {
    justify-content: center;
}

.terms-label {
    display: flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
    font-size: 12.5px;
    color: #444;
}

.terms-label input {
    display: none;
}

.custom-check {
    width: 22px;
    height: 22px;
    border-radius: 50%;
    border: 1.5px solid #199de0;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    color: transparent;
    background: #fff;
    font-size: 11px;
    flex-shrink: 0;
}

.terms-label input:checked + .custom-check {
    color: #199de0;
}

.terms-text a {
    color: #199de0;
    font-weight: 600;
}

/* Nút Submit Chính */
.btn-auth-submit {
    display: block;
    width: 100%;
    max-width: 340px;
    margin: 0 auto 14px auto;
    height: 46px;
    border-radius: 30px;
    border: none;
    background: linear-gradient(90deg, #32b2f0 0%, #199de0 100%);
    color: #ffffff;
    font-family: Georgia, 'Times New Roman', serif;
    font-size: 16px;
    font-weight: 700;
    letter-spacing: 0.5px;
    cursor: pointer;
    box-shadow: 0 4px 12px rgba(25, 157, 224, 0.35);
    transition: 0.2s;
}

.btn-auth-submit:hover {
    filter: brightness(1.06);
    transform: translateY(-1px);
}

/* Nhớ mật khẩu & Cảnh báo link giả mạo */
.remember-row {
    text-align: center;
    font-size: 13px;
    margin-bottom: 12px;
    color: #111;
    font-family: Georgia, 'Times New Roman', serif;
}

.remember-row label {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    cursor: pointer;
}

.security-alert-box {
    display: flex;
    border: 1.5px solid #6ac4f2;
    border-radius: 10px;
    background: linear-gradient(90deg, #dff3ff 0%, #ffffff 35%);
    overflow: hidden;
    margin-bottom: 16px;
}

.sec-left {
    width: 115px;
    flex-shrink: 0;
    border-right: 1px solid #bce3fa;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 8px;
    text-align: center;
}

.sec-left img {
    height: 24px;
    margin-bottom: 4px;
}

.sec-left span {
    font-size: 10px;
    font-weight: 800;
    color: #0b6fa4;
    line-height: 1.25;
}

.sec-right {
    padding: 8px 10px;
    font-size: 11px;
}

.sec-right h4 {
    color: #199de0;
    font-size: 13px;
    text-align: center;
    margin-bottom: 3px;
}

.sec-right p {
    color: #e60000;
    font-weight: 700;
    line-height: 1.35;
}

.sec-right p i {
    color: #ffaa00;
}

/* Liên kết phụ dưới nút Đăng nhập PC */
.pc-links-row {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 15px;
    font-family: Georgia, 'Times New Roman', serif;
    font-size: 13px;
    font-weight: 700;
    color: #055a8c;
    margin-bottom: 14px;
}

.pc-links-row a {
    text-decoration: underline;
}

.pc-contact-row {
    display: flex;
    justify-content: space-around;
    margin-bottom: 14px;
}

.contact-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 5px;
    font-family: Georgia, 'Times New Roman', serif;
    font-size: 13px;
    font-weight: 700;
    color: #055a8c;
}

.c-icon {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: #fff;
    border: 1px solid #bce3fa;
    color: #199de0;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 16px;
}

/* Ẩn phần riêng của Mobile khi ở trên PC */
.mb-switch-auth,
.mb-login-extra {
    display: none;
}

/* Đăng nhập nhanh (Telegram / Google) */
.quick-login-box {
    text-align: center;
}

.quick-login-box p {
    font-family: Georgia, 'Times New Roman', serif;
    font-size: 13px;
    color: #111;
    margin-bottom: 8px;
}

.quick-login-box.with-line p {
    position: relative;
}

.social-circles {
    display: flex;
    justify-content: center;
    gap: 14px;
}

.social-circles a {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    box-shadow: 0 3px 8px rgba(0,0,0,0.12);
}

.sc-telegram {
    background: #27a7e7;
    color: #fff;
}

.sc-google {
    background: #fff;
    color: #ea4335;
}

/* ==========================================
   RESPONSIVE FORM TRÊN ĐIỆN THOẠI (<= 768px)
=========================================== */
@media screen and (max-width: 768px) {
    .auth-modal-overlay {
        padding: 0;
        align-items: flex-start;
        background: #eef8ff;
    }

    .auth-modal-box {
        max-width: 100%;
        min-height: 100vh;
        border: none;
        border-radius: 0;
        padding: 20px 16px 35px 16px;
        background: linear-gradient(180deg, #ffffff 0%, #d8f0ff 100%);
        box-shadow: none;
    }

    .reg-grid {
        grid-template-columns: 1fr; /* Chuyển thành 1 cột dọc trên điện thoại */
        gap: 10px;
    }

    .btn-auth-submit {
        max-width: 100%;
    }

    .pc-login-extra {
        display: none;
    }

    .mb-switch-auth {
        display: block;
        text-align: center;
        font-family: Georgia, 'Times New Roman', serif;
        font-size: 13.5px;
        margin-bottom: 14px;
        color: #111;
    }

    .mb-switch-auth a {
        color: #199de0;
        font-weight: 700;
    }

    .mb-login-extra {
        display: block;
    }

    .mb-support-grid {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 10px;
        margin-bottom: 16px;
        text-align: center;
    }

    .sup-col h5 {
        font-family: Georgia, 'Times New Roman', serif;
        font-size: 13px;
        margin-bottom: 6px;
        color: #111;
    }

    .sup-pill {
        background: linear-gradient(180deg, #ffffff 0%, #c8e9ff 100%);
        border: 1px solid #9ed6f8;
        border-radius: 30px;
        padding: 8px 6px;
        display: flex;
        justify-content: space-around;
    }

    .sup-pill a {
        display: flex;
        flex-direction: column;
        align-items: center;
        gap: 4px;
        color: #199de0;
        font-size: 9px;
        font-weight: 700;
    }

    .sup-pill a i {
        font-size: 20px;
    }
}