/* ═══════════════════════════════════════════════════════
   Sub Abyss — Homepage CSS
   Prefisso classi: sa-
   ═══════════════════════════════════════════════════════ */

.hp-sections-container { display: flex; flex-direction: column; width: 100%; }
.hp-section { width: 100%; }

/* ══════ NAVBAR ══════ */
.sa-nav {
    position: fixed; top: 0; left: 0; right: 0; z-index: var(--z-fixed);
    padding: 0 2rem; height: var(--navbar-height);
    background: rgba(6,13,26,0.85); backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--color-border);
    display: flex; align-items: center; justify-content: space-between;
}
.sa-nav-brand {
    font-family: var(--font-family-heading); font-size: 1.5rem; font-weight: 700;
    color: var(--color-primary); text-transform: uppercase; letter-spacing: 3px;
    text-decoration: none; display: flex; align-items: center; gap: 0.5rem;
}
.sa-nav-brand img { height: 32px; width: auto; }
.sa-nav-brand-text { color: var(--color-text); font-weight: 400; }
.sa-nav-toggle { display: none; background: none; border: none; cursor: pointer; padding: 8px; }
.sa-nav-toggle span { display: block; width: 22px; height: 2px; background: var(--color-text); margin: 5px 0; transition: var(--transition); }
.sa-nav-menu { display: flex; align-items: center; gap: 2rem; list-style: none; margin: 0; padding: 0; }
.sa-nav-menu a {
    color: var(--color-text-muted); text-decoration: none; font-size: 0.9rem;
    font-weight: 500; letter-spacing: 1px; text-transform: uppercase; transition: color var(--transition);
}
.sa-nav-menu a:hover { color: var(--color-primary); }
.sa-nav-cta {
    background: transparent; border: 1px solid var(--color-primary); color: var(--color-primary);
    padding: 0.5rem 1.5rem; font-family: var(--font-family-heading); font-size: 0.85rem;
    letter-spacing: 2px; text-transform: uppercase; cursor: pointer; transition: all var(--transition);
    text-decoration: none;
}
.sa-nav-cta:hover { background: var(--color-primary); color: var(--color-bg); }
.sa-nav-logout { background: none; border: none; color: var(--color-text-muted); cursor: pointer; font-size: 0.9rem; }
.sa-nav-logout:hover { color: var(--color-danger); }

/* ══════ HERO ══════ */
.sa-hero {
    min-height: 100vh; display: flex; align-items: center; justify-content: center;
    position: relative; text-align: center; padding: 6rem 2rem 4rem;
    background: linear-gradient(180deg, var(--color-bg) 0%, #041029 30%, #061a3d 60%, #0a2755 100%);
}
.sa-hero::before {
    content: ''; position: absolute; inset: 0;
    background: radial-gradient(ellipse at 50% 80%, rgba(0,212,255,0.06) 0%, transparent 60%);
}
.sa-hero-particles { position: absolute; inset: 0; overflow: hidden; pointer-events: none; }
.sa-bubble {
    position: absolute; border-radius: 50%;
    background: radial-gradient(circle at 30% 30%, rgba(0,212,255,0.2), transparent);
    border: 1px solid rgba(0,212,255,0.08);
    animation: sa-float-up linear infinite;
}
@keyframes sa-float-up {
    0% { transform: translateY(100vh) scale(0.5); opacity: 0; }
    10% { opacity: 1; }
    90% { opacity: 0.6; }
    100% { transform: translateY(-10vh) scale(1); opacity: 0; }
}
.sa-hero-content { position: relative; z-index: 2; max-width: 700px; }
.sa-hero-tag {
    font-family: var(--font-family-heading); font-size: 0.85rem; letter-spacing: 6px;
    text-transform: uppercase; color: var(--color-primary); margin-bottom: 1.5rem;
}
.sa-hero-title {
    font-family: var(--font-family-heading); font-size: clamp(3rem, 7vw, 5.5rem);
    font-weight: 700; text-transform: uppercase; line-height: 1;
    margin-bottom: 1.5rem; letter-spacing: 2px; color: var(--color-text);
}
.sa-hero-accent { color: var(--color-primary); text-shadow: 0 0 40px rgba(0,212,255,0.3); }
.sa-hero-sub { font-size: 1.15rem; color: var(--color-text-muted); line-height: 1.7; max-width: 520px; margin: 0 auto 2.5rem; }
.sa-hero-buttons { display: flex; gap: 1rem; justify-content: center; flex-wrap: wrap; }
.sa-btn-neon {
    background: var(--color-primary); color: var(--color-bg); padding: 0.9rem 2.5rem;
    font-family: var(--font-family-heading); font-size: 0.9rem; font-weight: 600;
    text-transform: uppercase; letter-spacing: 2px; border: none; cursor: pointer;
    transition: all var(--transition); text-decoration: none;
}
.sa-btn-neon:hover { background: var(--color-accent); box-shadow: 0 0 30px rgba(0,255,163,0.2); }
.sa-btn-outline {
    background: transparent; color: var(--color-text); padding: 0.9rem 2.5rem;
    font-family: var(--font-family-heading); font-size: 0.9rem; font-weight: 600;
    text-transform: uppercase; letter-spacing: 2px; border: 1px solid var(--color-border);
    cursor: pointer; transition: all var(--transition); text-decoration: none;
}
.sa-btn-outline:hover { border-color: var(--color-primary); color: var(--color-primary); }

/* ══════ SECTION COMMON ══════ */
.sa-sec-label {
    font-family: var(--font-family-heading); font-size: 0.8rem; letter-spacing: 5px;
    text-transform: uppercase; color: var(--color-primary); margin-bottom: 0.75rem;
}
.sa-sec-title {
    font-family: var(--font-family-heading); font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 700; text-transform: uppercase; margin-bottom: 0.5rem; color: var(--color-text);
}
.sa-sec-sub { color: var(--color-text-muted); font-size: 1.05rem; max-width: 550px; line-height: 1.6; }

/* ══════ DISCIPLINES ══════ */
.sa-disciplines { background: var(--color-bg-secondary); padding: 6rem 2rem; }
.sa-disc-inner { max-width: var(--container-max); margin: 0 auto; }
.sa-disc-header { text-align: center; margin-bottom: 3rem; }
.sa-disc-header .sa-sec-sub { margin: 0 auto; }
.sa-disc-cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 1.5rem; }
.sa-disc-card {
    background: var(--color-bg-card); border: 1px solid var(--color-border); padding: 2rem;
    position: relative; overflow: hidden; transition: all 0.4s;
}
.sa-disc-card::before {
    content: ''; position: absolute; top: 0; left: 0; right: 0; height: 2px;
    background: linear-gradient(90deg, transparent, var(--color-primary), transparent);
    opacity: 0; transition: opacity 0.4s;
}
.sa-disc-card:hover { border-color: rgba(0,212,255,0.3); transform: translateY(-4px); }
.sa-disc-card:hover::before { opacity: 1; }
.sa-disc-emoji { font-size: 2.5rem; display: block; margin-bottom: 1rem; }
.sa-disc-name {
    font-family: var(--font-family-heading); font-size: 1.25rem; font-weight: 600;
    text-transform: uppercase; letter-spacing: 1px; margin-bottom: 0.5rem;
}
.sa-disc-text { color: var(--color-text-muted); font-size: 0.95rem; line-height: 1.6; }
.sa-disc-link { color: var(--color-primary); font-size: 0.85rem; display: inline-block; margin-top: 0.75rem; letter-spacing: 1px; text-transform: uppercase; }

/* ══════ TEAM ══════ */
.sa-team { background: var(--color-bg); padding: 6rem 2rem; }
.sa-team-inner { max-width: var(--container-max); margin: 0 auto; }
.sa-team-header { text-align: center; margin-bottom: 3rem; }
.sa-team-header .sa-sec-sub { margin: 0.5rem auto 0; }
.sa-team-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 2rem; max-width: 1000px; margin: 0 auto; }
.sa-team-card { text-align: center; cursor: pointer; }
.sa-team-card-banner { position: relative; margin-bottom: 1rem; }
.sa-team-avatar {
    width: 120px; height: 120px; margin: 0 auto; border-radius: 50%;
    background: linear-gradient(135deg, var(--color-bg-card), var(--color-bg-secondary));
    border: 2px solid var(--color-border);
    display: flex; align-items: center; justify-content: center; font-size: 2.5rem;
    overflow: hidden;
}
.sa-team-avatar-img { width: 100%; height: 100%; object-fit: cover; }
.sa-team-role-tag { color: var(--color-primary); font-size: 0.85rem; letter-spacing: 1px; }
.sa-team-member-name {
    font-family: var(--font-family-heading); font-size: 1.1rem; font-weight: 600;
    text-transform: uppercase; letter-spacing: 1px;
}
.sa-team-bio { color: var(--color-text-muted); font-size: 0.9rem; margin-top: 0.5rem; line-height: 1.5; }
.sa-bg-text { display: none; }

/* ══════ CENTRO ══════ */
.sa-centro { background: var(--color-bg-secondary); padding: 6rem 2rem; }
.sa-centro-inner { max-width: var(--container-max); margin: 0 auto; }
.sa-centro-split { display: grid; grid-template-columns: 1fr 1fr; gap: 3rem; align-items: center; margin-bottom: 2rem; }
.sa-centro-visual {
    display: flex; flex-direction: column; align-items: center; justify-content: center;
    background: var(--color-bg-card); border: 1px solid var(--color-border);
    padding: 3rem; min-height: 250px;
}
.sa-centro-visual img { width: 100%; border-radius: var(--radius); }
.sa-icon-big { font-size: 4rem; }
.sa-label-small { color: var(--color-text-muted); font-size: 0.8rem; letter-spacing: 2px; text-transform: uppercase; margin-top: 0.5rem; }
.sa-centro-tiles { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 1rem; margin-top: 2rem; }
.sa-c-tile {
    background: var(--color-bg-card); border: 1px solid var(--color-border); padding: 1.5rem;
    transition: border-color var(--transition);
}
.sa-c-tile:hover { border-color: rgba(0,212,255,0.3); }
.sa-tile-icon { font-size: 1.5rem; display: block; margin-bottom: 0.5rem; }
.sa-c-tile h3 { font-family: var(--font-family-heading); font-size: 0.9rem; text-transform: uppercase; letter-spacing: 1px; margin-bottom: 0.3rem; }
.sa-c-tile p { color: var(--color-text-muted); font-size: 0.85rem; line-height: 1.4; }

/* ══════ CONTACT ══════ */
.sa-contact { background: var(--color-bg); padding: 6rem 2rem; }
.sa-contact-inner { max-width: 900px; margin: 0 auto; display: grid; grid-template-columns: 1fr 1fr; gap: 3rem; }
.sa-contact-info { display: flex; flex-direction: column; justify-content: center; }
.sa-contact-detail-row { display: flex; align-items: flex-start; gap: 0.75rem; margin-bottom: 1.25rem; }
.sa-contact-detail-icon { font-size: 1.2rem; min-width: 24px; text-align: center; }
.sa-contact-detail-text small { display: block; font-size: 0.7rem; letter-spacing: 2px; text-transform: uppercase; color: var(--color-primary); }
.sa-contact-detail-text strong { color: var(--color-text-muted); font-weight: 400; }
.sa-contact-form { display: flex; flex-direction: column; gap: 0.75rem; }
.sa-contact-form input, .sa-contact-form textarea {
    background: var(--color-bg-card); border: 1px solid var(--color-border); color: var(--color-text);
    padding: 0.85rem 1rem; font-family: var(--font-family); font-size: 0.95rem;
    outline: none; transition: border-color var(--transition);
}
.sa-contact-form input::placeholder, .sa-contact-form textarea::placeholder { color: var(--color-text-light); }
.sa-contact-form input:focus, .sa-contact-form textarea:focus { border-color: var(--color-primary); }
.sa-contact-form textarea { min-height: 120px; resize: vertical; }

/* ══════ FOOTER ══════ */
.sa-footer {
    padding: 3rem 2rem; text-align: center;
    border-top: 1px solid var(--color-border); background: var(--color-bg-secondary);
}
.sa-footer-inner { max-width: var(--container-max); margin: 0 auto; }
.sa-footer-left { display: flex; align-items: center; justify-content: center; gap: 0.5rem; margin-bottom: 0.5rem; }
.sa-footer-logo-text { font-family: var(--font-family-heading); font-size: 1.2rem; color: var(--color-primary); letter-spacing: 3px; text-transform: uppercase; }
.sa-footer-copy { color: var(--color-text-muted); font-size: 0.8rem; }
.sa-footer-links { display: flex; gap: 1.5rem; justify-content: center; margin-top: 0.75rem; list-style: none; padding: 0; }
.sa-footer-links a { color: var(--color-text-muted); text-decoration: none; font-size: 0.8rem; transition: color var(--transition); }
.sa-footer-links a:hover { color: var(--color-primary); }
.sa-footer-powered { color: var(--color-text-light); font-size: 0.75rem; margin-top: 1rem; }
.sa-footer-powered a { color: var(--color-primary); text-decoration: none; }
.footer-location { margin-top: 0.5rem; color: var(--color-text-muted); font-size: 0.85rem; }
.footer-location strong { color: var(--color-text); }
.footer-location-divider { padding-top: 0.75rem; border-top: 1px solid var(--color-border); }
.footer-opening-hours { font-size: 0.8rem; margin-top: 0.25rem; }
.oh-inline { margin-right: 0.5rem; }

/* ══════ RESPONSIVE ══════ */
@media (max-width: 768px) {
    .sa-nav-toggle { display: block; }
    .sa-nav-menu {
        display: none; position: absolute; top: var(--navbar-height); left: 0; right: 0;
        background: rgba(6,13,26,0.98); flex-direction: column; padding: 1rem 2rem 2rem; gap: 1rem;
    }
    .sa-nav-menu.open { display: flex; }
    .sa-hero { padding: 5rem 1.5rem 3rem; }
    .sa-centro-split { grid-template-columns: 1fr; }
    .sa-contact-inner { grid-template-columns: 1fr; }
}

/* ══════ TEACHER MODAL ══════ */
.teacher-modal-overlay {
    display: none;
    position: fixed;
    inset: 0;
    z-index: 1000;
    background: rgba(0, 0, 0, 0.85);
    backdrop-filter: blur(6px);
    overflow-y: auto;
    padding: 40px 16px;
}
.teacher-modal-overlay.active {
    display: block;
}
.teacher-modal {
    position: relative;
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    max-width: 640px;
    width: 100%;
    margin: 0 auto;
    padding: 2.5rem;
}
.teacher-modal::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--color-primary), transparent);
}
.teacher-modal-close {
    position: absolute;
    top: 1rem;
    right: 1rem;
    background: none;
    border: 1px solid var(--color-border);
    color: var(--color-text-muted);
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.1rem;
    cursor: pointer;
    transition: all var(--transition);
    line-height: 1;
}
.teacher-modal-close:hover {
    border-color: var(--color-primary);
    color: var(--color-primary);
}
.teacher-modal-content {
    display: flex;
    gap: 2rem;
    align-items: flex-start;
}
.teacher-modal-photo {
    flex-shrink: 0;
    width: 120px;
    height: 120px;
    border: 1px solid var(--color-border);
    overflow: hidden;
}
.teacher-modal-photo img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}
.teacher-modal-photo .photo-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-bg-secondary);
    font-family: var(--font-family-heading);
    font-size: 2rem;
    font-weight: 700;
    color: var(--color-primary);
    letter-spacing: 2px;
}
.teacher-modal-info {
    flex: 1;
    min-width: 0;
}
.teacher-modal-role {
    font-family: var(--font-family-heading);
    font-size: 0.75rem;
    letter-spacing: 4px;
    text-transform: uppercase;
    color: var(--color-primary);
    margin-bottom: 0.5rem;
}
.teacher-modal-name {
    font-family: var(--font-family-heading);
    font-size: 1.4rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 1rem;
    color: var(--color-text);
}
.teacher-modal-desc {
    color: var(--color-text-muted);
    font-size: 0.95rem;
    line-height: 1.7;
}
@media (max-width: 540px) {
    .teacher-modal {
        padding: 2rem 1.25rem;
    }
    .teacher-modal-content {
        flex-direction: column;
        align-items: center;
        text-align: center;
    }
}