/* main visual */
.hero {
    container-type: inline-size;
    container-name: hero;
    width: 100%;
    aspect-ratio: 1 / 1;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    overflow: hidden;
    position: relative;
    padding: 1rem;
    border-radius: 1rem;
}

@media (min-width: 768px) {
    .hero {
        padding: 1.25rem;
        border-radius: 1.25rem;
    }
}

@media (min-width: 768px) and (orientation: landscape) {
    .hero {
        aspect-ratio: 16 / 9;
    }
}

/* mesh gradient background */
.mesh-bg {
    background-color: #ffa200;
    background-image:
        radial-gradient(80% 80% at 50% 160%, #ffbc85 0%, rgba(255, 188, 133, 0.7) 50%, transparent 100%),
        radial-gradient(85% 85% at 95% 20%, #ba0104 0%, rgba(186, 1, 4, 0.7) 50%, transparent 100%),
        radial-gradient(65% 65% at 55% 15%, #db1102 0%, rgba(219, 17, 2, 0.7) 50%, transparent 100%),
        radial-gradient(50% 50% at 25% 25%, #f36d00 0%, rgba(243, 109, 0, 0.7) 50%, transparent 100%),
        radial-gradient(80% 80% at 85% 85%, #f86f49 0%, rgba(248, 111, 73, 0.7) 50%, transparent 100%),
        radial-gradient(90% 90% at 20% 90%, #ee9905 0%, rgba(238, 153, 5, 0.7) 50%, transparent 100%);
    position: relative;
    isolation: isolate;
}

/* noise overlay */
.mesh-bg::after {
    content: "";
    position: absolute;
    inset: 0;
    opacity: 0.8;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noiseFilter'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.65' numOctaves='3' stitchTiles='stitch'/%3E%3CfeColorMatrix type='saturate' values='0'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noiseFilter)'/%3E%3C/svg%3E");
    background-repeat: repeat;
    background-size: 200px 200px;
    mix-blend-mode: overlay;
    pointer-events: none;
    border-radius: inherit;
}

/* navigation */
.hero-nav {
    position: static;
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
}

.main-logo {
    display: flex;
    align-items: center;
    line-height: 0;
    position: relative;
    z-index: 50;
}

.main-logo-img {
    height: clamp(20px, 3.5vw, 28px);
    width: auto;
    object-fit: contain;
    filter: var(--drop-shadow-md);
}

/* mobile menu toggle */
.menu-toggle {
    width: 32px;
    height: 32px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 0.3125rem;
    background: transparent;
    border: none;
    cursor: pointer;
    padding: 0;
    position: relative;
    z-index: 50;
}

.menu-toggle-bar {
    width: 20px;
    height: 2px;
    background-color: var(--text-hero);
    border-radius: 0.125rem;
    transition: transform 0.25s ease, opacity 0.25s ease;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.4);
}

.menu-toggle[aria-expanded="true"] .menu-toggle-bar:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
}

.menu-toggle[aria-expanded="true"] .menu-toggle-bar:nth-child(2) {
    opacity: 0;
}

.menu-toggle[aria-expanded="true"] .menu-toggle-bar:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
}

/* mobile menu overlay */
.hero-menu {
    position: absolute;
    inset: 0;
    list-style: none;
    background: transparent;
    backdrop-filter: blur(18px);
    -webkit-backdrop-filter: blur(18px);
    border-radius: inherit;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: flex-end;
    padding: 1.5rem;
    gap: 1rem;
    z-index: 20;

    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, visibility 0.3s ease;
}

.hero-menu.is-active {
    opacity: 1;
    visibility: visible;
}

.hero-menu-link {
    font-size: var(--font-size-400);
    font-weight: normal;
    color: var(--text-hero);
    text-align: right;
    display: inline-block;
    padding: 0.5rem 0;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.28);
    filter: drop-shadow(0 2px 6px rgba(0, 0, 0, 0.18));
    transition: transform 0.2s ease, opacity 0.2s ease;
}

.hero-menu-link:hover {
    transform: translateX(-4px);
    opacity: 0.85;
}

/* desktop navigation */
@media (min-width: 768px) {
    .menu-toggle {
        display: none;
    }

    .hero-menu {
        position: static;
        inset: auto;
        background: transparent;
        backdrop-filter: none;
        -webkit-backdrop-filter: none;
        flex-direction: row;
        align-items: center;
        justify-content: flex-end;
        padding: 0;
        gap: 0.5rem;
        opacity: 1;
        visibility: visible;
        transform: none;
    }

    .hero-menu-link {
        font-size: var(--font-size-200);
        font-weight: normal;
        text-align: left;
        padding: 0.375rem 0.875rem;
        border-radius: 0.375rem;
        background-color: transparent;
        filter: none;
        text-shadow: 0 1px 4px rgba(0, 0, 0, 0.2);
        transition: background-color 0.25s ease, opacity 0.25s ease;
    }

    .hero-menu-link:hover {
        transform: none;
        opacity: 1;
        background-color: rgba(255, 255, 255, 0.2);
    }
}

/* hero content */
.hero-content {
    position: relative;
    z-index: 2;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    width: 100%;
    max-width: 900px;
    color: var(--text-hero);
    margin: auto;
    transition: filter 0.3s ease, opacity 0.3s ease;
}

.hero-content.is-blurred {
    filter: blur(8px);
}

.hero-title {
    font-size: var(--font-size-700);
    font-weight: bold;
    letter-spacing: -0.025em;
    line-height: 1.12;
    margin-bottom: 0.75rem;
    text-align: center;
}

.hero-subtitle {
    font-size: var(--font-size-400);
    font-weight: normal;
    line-height: 1.5;
    opacity: 0.94;
    max-width: 720px;
    text-align: center;
}

/* grid section */
.section-grid {
    width: 100%;
    padding-top: 1.25rem;
}

@media (min-width: 768px) {
    .section-grid {
        padding-top: 1.75rem;
    }
}

.grid-container {
    width: 100%;
    display: grid;
    grid-template-columns: 1fr;
    gap: 1rem;
}

@media (min-width: 768px) {
    .grid-container {
        grid-template-columns: repeat(3, 1fr);
        gap: 1.25rem;
    }
}

.grid-item {
    aspect-ratio: 16 / 9;
    width: 100%;
    background-color: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 0.75rem;
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    box-shadow: var(--shadow-card);
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
    align-items: center;
    text-align: center;
    padding: 1.5rem 1rem;
    text-decoration: none;
    color: inherit;
    transition: filter var(--transition-fast),
        box-shadow var(--transition-fast),
        transform var(--transition-fast);
}

a.grid-item {
    cursor: pointer;
}

a.grid-item:hover {
    filter: var(--hover-darken);
    box-shadow: var(--shadow-md);
}

a.grid-item:active {
    filter: var(--active-darken);
    transform: translateY(1px);
}

.grid-item-title {
    font-size: var(--font-size-500);
    font-weight: 700;
    color: var(--text-primary);
    line-height: 1.2;
    margin-bottom: 0.25rem;
}

.grid-item-subtitle {
    font-size: var(--font-size-200);
    color: var(--text-secondary);
    line-height: 1.3;
}