/**
 * VIK AUTO TRADING - Main Content Styles
 *
 * 중앙 로고 + 4분면 메뉴 배치
 */

/* ==========================================
   MAIN CONTAINER
========================================== */

.main-content {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    display: -webkit-box;
    display: -ms-flexbox;
    display: flex;
    -webkit-box-orient: vertical;
    -webkit-box-direction: normal;
    -ms-flex-direction: column;
    flex-direction: column;
    -webkit-box-align: center;
    -ms-flex-align: center;
    align-items: center;
    -webkit-box-pack: center;
    -ms-flex-pack: center;
    justify-content: center;
    z-index: var(--z-content);
    padding: var(--spacing-lg);
}

/* ==========================================
   LOGO SECTION
========================================== */

.logo-section {
    text-align: center;
    margin-bottom: var(--spacing-xl);
    display: -webkit-box;
    display: -ms-flexbox;
    display: flex;
    -webkit-box-orient: vertical;
    -webkit-box-direction: normal;
    -ms-flex-direction: column;
    flex-direction: column;
    -webkit-box-align: center;
    -ms-flex-align: center;
    align-items: center;
}

/* 로고 공간 확보 (로딩 로고가 fixed로 이 위에 위치) */
.logo-section__space {
    width: 150px;
    height: 150px;
    margin-bottom: var(--spacing-lg);
}

.logo-section__link {
    display: inline-block;
    text-decoration: none;
    cursor: pointer;
}

.logo-section__text {
    font-family: var(--font-display);
    font-size: var(--font-size-logo);
    font-weight: var(--font-weight-light);
    letter-spacing: var(--letter-spacing-logo);
    color: var(--color-gold-main);
    text-transform: uppercase;
    cursor: pointer;
    opacity: 0;
    -webkit-transform: translateY(20px);
    -ms-transform: translateY(20px);
    transform: translateY(20px);
    -webkit-transition: opacity 1.2s var(--ease-out),
                        -webkit-transform 1.2s var(--ease-out);
    -o-transition: opacity 1.2s var(--ease-out),
                   transform 1.2s var(--ease-out);
    transition: opacity 1.2s var(--ease-out),
                transform 1.2s var(--ease-out);
}

.logo-section__text.is-visible {
    opacity: 1;
    -webkit-transform: translateY(0);
    -ms-transform: translateY(0);
    transform: translateY(0);
}

.logo-section__text:hover {
    color: var(--color-gold-bright);
    text-shadow: var(--shadow-glow-md);
}

/* Logo Underline */
.logo-section__line {
    width: 0;
    height: 1px;
    background: var(--color-gold-main);
    margin: var(--spacing-md) auto 0;
    -webkit-box-shadow: var(--shadow-glow-sm);
    box-shadow: var(--shadow-glow-sm);
    -webkit-transition: width 1.2s var(--ease-out);
    -o-transition: width 1.2s var(--ease-out);
    transition: width 1.2s var(--ease-out);
}

.logo-section__line.is-visible {
    width: 60%;
    max-width: 400px;
}

/* ==========================================
   NAVIGATION MENU (중앙 정렬)
========================================== */

.nav-menu {
    position: relative;
    display: -webkit-box;
    display: -ms-flexbox;
    display: flex;
    -webkit-box-orient: vertical;
    -webkit-box-direction: normal;
    -ms-flex-direction: column;
    flex-direction: column;
    -webkit-box-align: center;
    -ms-flex-align: center;
    align-items: center;
    gap: var(--spacing-lg);
}

.nav-menu__row {
    display: -webkit-box;
    display: -ms-flexbox;
    display: flex;
    -webkit-box-pack: center;
    -ms-flex-pack: center;
    justify-content: center;
    gap: 80px;
}

.nav-menu__row--top {
    gap: 60px;
    margin-bottom: 0;
}

.nav-menu__row--bottom {
    margin-top: 0;
}

/* ==========================================
   MENU LINKS
========================================== */

.nav-menu__link {
    font-family: var(--font-display);
    font-size: var(--font-size-menu);
    font-weight: var(--font-weight-normal);
    letter-spacing: var(--letter-spacing-menu);
    color: var(--color-gold-main);
    text-transform: uppercase;
    text-decoration: none;
    position: relative;
    padding-bottom: 8px;
    min-width: 120px;
    text-align: center;
    /* Initial state for animation */
    opacity: 0;
    -webkit-transform: translateY(15px);
    -ms-transform: translateY(15px);
    transform: translateY(15px);
    -webkit-transition: opacity 1.2s var(--ease-out),
                        -webkit-transform 1.2s var(--ease-out),
                        color var(--duration-fast) var(--ease-out),
                        text-shadow var(--duration-fast) var(--ease-out);
    -o-transition: opacity 1.2s var(--ease-out),
                   transform 1.2s var(--ease-out),
                   color var(--duration-fast) var(--ease-out),
                   text-shadow var(--duration-fast) var(--ease-out);
    transition: opacity 1.2s var(--ease-out),
                transform 1.2s var(--ease-out),
                color var(--duration-fast) var(--ease-out),
                text-shadow var(--duration-fast) var(--ease-out);
}

.nav-menu__link.is-visible {
    opacity: 0.7;
    -webkit-transform: translateY(0);
    -ms-transform: translateY(0);
    transform: translateY(0);
}

/* Hover Underline */
.nav-menu__link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 0;
    height: 1px;
    background: var(--color-gold-bright);
    -webkit-transform: translateX(-50%);
    -ms-transform: translateX(-50%);
    transform: translateX(-50%);
    -webkit-transition: width var(--duration-fast) var(--ease-out);
    -o-transition: width var(--duration-fast) var(--ease-out);
    transition: width var(--duration-fast) var(--ease-out);
    -webkit-box-shadow: var(--shadow-glow-sm);
    box-shadow: var(--shadow-glow-sm);
}

.nav-menu__link.is-visible:hover {
    opacity: 1;
    color: var(--color-gold-bright);
    text-shadow: var(--shadow-glow-md);
}

/* Hover underline - only when visible */
.nav-menu__link.is-visible:hover::after {
    width: 100%;
}

/* ==========================================
   MOBILE
========================================== */

@media (max-width: 768px) {
    .main-content {
        padding: var(--spacing-md);
    }

    .logo-section {
        margin-bottom: var(--spacing-lg);
    }

    .logo-section__space {
        width: 120px;
        height: 120px;
        margin-bottom: var(--spacing-md);
    }

    .logo-section__text {
        font-size: var(--font-size-logo-mobile);
        letter-spacing: var(--letter-spacing-logo-mobile);
    }

    .logo-section__line.is-visible {
        width: 80%;
    }

    .nav-menu {
        max-width: 320px;
    }

    .nav-menu__row {
        gap: 40px;
    }

    .nav-menu__row--top {
        gap: 30px;
    }

    .nav-menu__link {
        font-size: var(--font-size-menu-mobile);
        letter-spacing: var(--letter-spacing-menu-mobile);
        min-width: 90px;
    }
}

@media (max-width: 480px) {
    .logo-section__space {
        width: 100px;
        height: 100px;
    }

    .logo-section__text {
        font-size: 18px;
        letter-spacing: 6px;
    }

    .nav-menu__row {
        gap: 40px;
    }

    .nav-menu__link {
        font-size: 11px;
        letter-spacing: 3px;
        min-width: 70px;
    }
}