/* ─── Reset ─── */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

/* ─── Tokens ─── */
:root {
    --teal:       #44BCC2;
    --bg:         #0f1f3d;
    --bg-alt:     #162540;
    --text:       #ffffff;
    --text-muted: #a8c0d6;
    --border:     rgba(68, 188, 194, 0.25);
}

/* ─── Base ─── */
html {
    scroll-behavior: smooth;
}

body {
    background-color: var(--bg);
    color: var(--text);
    font-family: 'Lato', sans-serif;
    font-weight: 300;
    line-height: 1.75;
    -webkit-font-smoothing: antialiased;
}

/* ─── Layout ─── */
.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

/* ─── Hero ─── */
.hero {
    position: relative;
    min-height: 50vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background-image: url('assets/iStock-1182912432.jpg');
    background-size: cover;
    background-position: center 40%;
    overflow: hidden;
}

.hero-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(
        160deg,
        rgba(15, 31, 61, 0.50) 0%,
        rgba(15, 31, 61, 0.68) 100%
    );
}

.hero-content {
    position: relative;
    z-index: 1;
    padding: 3.5rem 1.5rem;
    width: 100%;
    display: flex;
    justify-content: center;
}

.logo-panel {
    background: rgba(255, 255, 255, 0.93);
    padding: 1.75rem 2.75rem;
    border-top: 4px solid var(--teal);
    border-radius: 3px;
    box-shadow: 0 10px 48px rgba(0, 0, 0, 0.40);
    max-width: 540px;
    width: 90%;
}

.logo {
    display: block;
    width: 100%;
    height: auto;
}

/* ─── Farewell ─── */
.farewell {
    padding: 5rem 0;
    background-color: var(--bg);
    border-top: 3px solid var(--teal);
}

.farewell h1 {
    font-family: 'Noto Sans JP', sans-serif;
    font-weight: 300;
    font-size: clamp(1.8rem, 4vw, 2.6rem);
    color: var(--teal);
    margin-bottom: 1.5rem;
    letter-spacing: 0.01em;
}

.farewell p {
    color: var(--text-muted);
    font-size: 1.05rem;
    max-width: 700px;
}

.farewell p + p {
    margin-top: 1rem;
}

.farewell .lead {
    font-size: 1.2rem;
    color: var(--text);
    font-weight: 400;
}

/* ─── Team ─── */
.team {
    padding: 5rem 0;
    background-color: var(--bg-alt);
    border-top: 1px solid var(--border);
}

.team h2 {
    font-family: 'Noto Sans JP', sans-serif;
    font-weight: 300;
    font-size: clamp(1.4rem, 3vw, 2rem);
    color: var(--teal);
    margin-bottom: 2.75rem;
    letter-spacing: 0.01em;
}

/* ─── Cards ─── */
.cards {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1.5rem;
}

.card {
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid var(--border);
    border-top: 3px solid var(--teal);
    border-radius: 3px;
    padding: 2.25rem 2rem;
    display: flex;
    flex-direction: column;
    gap: 0.9rem;
}

.card h3 {
    font-family: 'Noto Sans JP', sans-serif;
    font-weight: 500;
    font-size: 1.1rem;
    color: var(--teal);
    line-height: 1.4;
}

.card p {
    color: var(--text-muted);
    font-size: 0.97rem;
    line-height: 1.8;
    flex: 1;
}

.card strong {
    color: var(--text);
    font-weight: 700;
}

.card-link {
    display: inline-block;
    margin-top: 0.25rem;
    color: var(--teal);
    text-decoration: none;
    font-size: 0.875rem;
    font-weight: 700;
    letter-spacing: 0.03em;
    border-bottom: 1px solid rgba(68, 188, 194, 0.35);
    padding-bottom: 2px;
    transition: color 0.2s ease, border-color 0.2s ease;
    word-break: break-all;
}

.card-link:hover,
.card-link:focus-visible {
    color: #ffffff;
    border-color: rgba(255, 255, 255, 0.45);
    outline: none;
}

/* ─── Footer ─── */
.footer {
    padding: 2rem 0;
    background-color: var(--bg);
    border-top: 1px solid var(--border);
    text-align: center;
}

.footer p {
    color: var(--text-muted);
    font-size: 0.85rem;
}

/* ─── Responsive ─── */
@media (min-width: 640px) {
    .logo-panel {
        padding: 2rem 3.5rem;
    }
}

@media (min-width: 980px) {
    .cards {
        grid-template-columns: repeat(3, 1fr);
        gap: 2rem;
    }
}

@media (max-width: 480px) {
    .farewell {
        padding: 3.5rem 0;
    }

    .team {
        padding: 3.5rem 0;
    }

    .logo-panel {
        padding: 1.25rem 1.5rem;
    }
}