/* ============ LANDING PAGE STYLES ============ */
#landing-screen {
    background: linear-gradient(135deg, #fef0f3 0%, #fff5f7 50%, #f8e8ec 100%);
    display: none;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    min-height: 100svh;
    width: 100vw;
    position: fixed;
    top: 0;
    left: 0;
    z-index: 10000;
    transition: opacity 0.5s ease-in-out, visibility 0.5s;
}

#landing-screen.active {
    display: flex;
}

#landing-screen.hidden {
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
}

.landing-content {
    background: #ffffff;
    padding: 50px 40px;
    border-radius: 32px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.08);
    text-align: center;
    max-width: 500px;
    width: 100%;
    height: auto;
    min-height: 720px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    animation: landingFadeIn 1.2s ease-out;
}

.landing-logo {
    margin-bottom: 25px;
    display: flex;
    justify-content: center;
    align-items: center;
    background: transparent;
    border: none;
    box-shadow: none;
}

#landing-logo-img {
    max-width: 300px;
    height: auto;
    image-rendering: -webkit-optimize-contrast;
    image-rendering: crisp-edges;
    border: none;
    background: transparent;
    box-shadow: none;
}

.landing-welcome {
    font-size: 16px;
    font-weight: 500;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 2.5px;
    margin-bottom: 12px;
    opacity: 0.8;
}

.landing-brand {
    font-size: 30px;
    font-weight: 800;
    color: var(--primary);
    letter-spacing: 1.5px;
    margin-bottom: 35px;
    text-transform: uppercase;
    white-space: nowrap;
}

@media (max-width: 480px) {
    .landing-brand {
        font-size: 22px;
        white-space: normal;
        margin-bottom: 26px;
        padding: 0 10px;
    }

    /* Ô chào mừng nhỏ lại, cân đối, để lộ nền hồng xung quanh */
    .landing-content {
        width: calc(100% - 44px);
        max-width: 380px;
        padding: 34px 24px;
        height: auto;
        min-height: 0;
        border-radius: 28px;
    }

    .landing-logo {
        margin-bottom: 18px;
    }

    #landing-logo-img {
        max-width: 210px;
    }

    .landing-welcome {
        font-size: 14px;
        margin-bottom: 10px;
    }

    #join-now-btn {
        padding: 14px 42px;
        font-size: 17px;
    }
}

.landing-actions {
    margin-top: 10px;
    opacity: 0;
    animation: fadeInUp 0.8s ease-out forwards;
    animation-delay: 0.8s;
}

#join-now-btn {
    padding: 16px 48px;
    font-size: 18px;
    font-weight: 700;
    border-radius: 50px;
    display: inline-flex;
    align-items: center;
    gap: 12px;
    box-shadow: 0 10px 25px rgba(187, 38, 73, 0.3);
    transition: transform 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275), box-shadow 0.3s ease;
}

#join-now-btn:hover {
    transform: scale(1.05) translateY(-3px);
    box-shadow: 0 15px 35px rgba(187, 38, 73, 0.4);
}

#join-now-btn:active {
    transform: scale(0.98);
}

@keyframes landingFadeIn {
    from {
        opacity: 0;
        transform: scale(0.95);
    }

    to {
        opacity: 1;
        transform: scale(1);
    }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}