/* ============================================================
   Giriş (Hub) Sayfası — Marka Seçimi
   style.css'teki :root token'larını kullanır (bg, fg, accent…)
   ============================================================ */

.hub-body {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-0);
    overflow: hidden;
}

/* Arka plan: intro slaytıyla aynı his — merkezden yayılan hafif glow */
.hub-bg {
    position: fixed;
    inset: 0;
    background:
        radial-gradient(ellipse 60% 50% at 50% 35%, rgba(79, 140, 255, 0.08), transparent 70%),
        radial-gradient(ellipse 40% 35% at 80% 85%, rgba(79, 140, 255, 0.05), transparent 70%);
    pointer-events: none;
}

.hub {
    position: relative;
    width: min(1060px, 92vw);
    padding: 3rem 0 4.5rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: clamp(2.5rem, 5vh, 4rem);
}

/* ---------- header ---------- */
.hub-header {
    text-align: center;
    animation: hubFadeUp 0.8s var(--ease) both;
}

.hub-eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.22em;
    text-transform: uppercase;
    color: var(--accent);
    margin-bottom: 1.1rem;
}

.hub-eyebrow::before,
.hub-eyebrow::after {
    content: '';
    width: 28px;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--accent-glow));
}
.hub-eyebrow::after { transform: scaleX(-1); }

.hub-name {
    font-size: clamp(2.1rem, 5.5vw, 3.4rem);
    font-weight: 800;
    letter-spacing: 0.28em;
    margin-right: -0.28em; /* letter-spacing'in sağda bıraktığı boşluğu dengele */
    color: var(--fg-0);
}

.hub-sub {
    margin-top: 0.9rem;
    font-size: clamp(0.95rem, 1.6vw, 1.1rem);
    font-weight: 400;
    color: var(--fg-2);
}

.hub-cv-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.7rem;
    padding: 1.05rem 2.6rem;
    font-size: 1.05rem;
    font-weight: 700;
    letter-spacing: 0.02em;
    color: #ffffff;
    text-decoration: none;
    background: linear-gradient(135deg, var(--accent), #3a6fd8);
    border: 1px solid rgba(255, 255, 255, 0.18);
    border-radius: 14px;
    box-shadow: 0 12px 35px rgba(79, 140, 255, 0.28), 0 0 0 1px rgba(79, 140, 255, 0.2);
    transition: box-shadow 0.3s, transform 0.3s var(--ease), filter 0.3s;
    animation: hubFadeUp 0.8s var(--ease) 0.55s both;
}

.hub-cv-btn:hover,
.hub-cv-btn:focus-visible {
    filter: brightness(1.1);
    box-shadow: 0 16px 50px rgba(79, 140, 255, 0.45), 0 0 0 1px rgba(79, 140, 255, 0.35);
    transform: translateY(-3px);
    outline: none;
}

/* ---------- brand cards ---------- */
.hub-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: clamp(1rem, 2.5vw, 1.75rem);
    width: 100%;
}

.hub-card {
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 1rem;
    padding: clamp(1.5rem, 3vw, 2.25rem);
    background: var(--bg-1);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    text-decoration: none;
    color: inherit;
    transition: transform 0.35s var(--ease), border-color 0.35s, box-shadow 0.35s, background 0.35s;
    animation: hubFadeUp 0.8s var(--ease) both;
}
.hub-card:nth-child(1) { animation-delay: 0.15s; }
.hub-card:nth-child(2) { animation-delay: 0.28s; }
.hub-card:nth-child(3) { animation-delay: 0.41s; }

.hub-card:hover,
.hub-card:focus-visible {
    transform: translateY(-6px);
    border-color: rgba(79, 140, 255, 0.5);
    background: var(--bg-2);
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.45), 0 0 0 1px rgba(79, 140, 255, 0.15), 0 0 60px rgba(79, 140, 255, 0.12);
    outline: none;
}

.hub-key {
    position: absolute;
    top: 1rem;
    right: 1rem;
    min-width: 1.6rem;
    height: 1.6rem;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.72rem;
    font-weight: 600;
    color: var(--fg-2);
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid var(--border);
    border-radius: 6px;
    transition: color 0.3s, border-color 0.3s;
}
.hub-card:hover .hub-key { color: var(--accent); border-color: rgba(79, 140, 255, 0.4); }

.hub-logo {
    height: 56px;
    display: flex;
    align-items: center;
}
.hub-logo img {
    max-height: 44px;
    max-width: 190px;
    width: auto;
    object-fit: contain;
    filter: drop-shadow(0 0 24px rgba(255, 255, 255, 0.08));
}

.hub-card h2 {
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--fg-0);
    letter-spacing: 0.01em;
}

.hub-card p {
    font-size: 0.88rem;
    line-height: 1.6;
    color: var(--fg-2);
    flex: 1;
}

.hub-cta {
    display: inline-flex;
    align-items: center;
    gap: 0.45rem;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--accent);
}
.hub-cta svg { transition: transform 0.3s var(--ease); }
.hub-card:hover .hub-cta svg { transform: translateX(4px); }

/* ---------- footer ---------- */
.hub-foot {
    position: fixed;
    bottom: 1.6rem;
    left: 0;
    right: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 2rem;
    font-size: 0.78rem;
    color: var(--fg-2);
    animation: hubFadeUp 0.8s var(--ease) 0.6s both;
}

.hub-foot .key {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 1.5rem;
    height: 1.5rem;
    padding: 0 0.35rem;
    margin-right: 0.25rem;
    font-size: 0.72rem;
    font-weight: 600;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid var(--border);
    border-radius: 6px;
    color: var(--fg-1);
}

.hub-domain {
    letter-spacing: 0.08em;
    font-weight: 500;
}

@keyframes hubFadeUp {
    from { opacity: 0; transform: translateY(24px); }
    to   { opacity: 1; transform: translateY(0); }
}

/* ---------- responsive ---------- */
@media (max-width: 860px) {
    /* Mobilde içerik ekrana sığmaz — dikey kaydırmayı aç, footer'ı akışa al */
    .hub-body {
        flex-direction: column;
        justify-content: flex-start;
        overflow-y: auto;
        overflow-x: hidden;
        -webkit-overflow-scrolling: touch;
    }
    .hub-name { letter-spacing: 0.16em; margin-right: -0.16em; }
    .hub { padding: 2.5rem 0 2rem; }
    .hub-grid { grid-template-columns: 1fr; }
    .hub-card { flex-direction: row; align-items: center; flex-wrap: wrap; }
    .hub-card p { flex-basis: 100%; }
    .hub-key { display: none; }
    .hub-cv-btn { width: 100%; justify-content: center; padding: 1.15rem 1rem; }
    .hub-foot {
        position: static;
        margin: 0;
        padding-bottom: calc(4rem + env(safe-area-inset-bottom));
    }
    .hub-foot .hint-keys { display: none; }
}