/* ==========================================================================
   COMPONENTS.CSS — Nav, Hero, Cards, Form, Stats, Footer
   ========================================================================== */

/* ---- NAVIGATION ---- */
#s78-nav {
    position: fixed;
    top: 0; left: 0; right: 0;
    z-index: 500;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1.5rem 3rem;
    transition: background 0.4s ease, backdrop-filter 0.4s ease, padding 0.4s ease;
}
#s78-nav.scrolled {
    background: color-mix(in srgb, var(--bg-void) 88%, transparent);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    padding: 1rem 3rem;
    border-bottom: 1px solid var(--border);
}

.nav-logo {
    font-family: var(--font-display);
    font-weight: 700;
    font-size: 1.3rem;
    letter-spacing: 0.05em;
    line-height: 1;
}
.logo-src { color: var(--text-hi); }
.logo-num {
    color: var(--accent-a);
    text-shadow: 0 0 12px var(--glow-a);
}

.nav-links {
    display: flex;
    gap: 2.5rem;
}
.nav-links a {
    font-size: 0.9rem;
    color: var(--text-mid);
    letter-spacing: 0.02em;
    transition: color var(--trans-fast);
    position: relative;
}
.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -4px; left: 0;
    width: 0; height: 1px;
    background: var(--accent-a);
    transition: width var(--trans-med);
}
.nav-links a:hover { color: var(--text-hi); }
.nav-links a:hover::after { width: 100%; }

.nav-cta {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    letter-spacing: 0.05em;
    padding: 0.6rem 1.4rem;
    border: 1px solid var(--accent-a);
    border-radius: var(--radius-full);
    color: var(--accent-a);
    transition: all var(--trans-fast);
    white-space: nowrap;
}
.nav-cta:hover {
    background: var(--accent-a);
    color: var(--bg-void);
    box-shadow: 0 0 24px var(--glow-a);
}

/* ---- HERO ---- */
.hero-eyebrow {
    font-family: var(--font-mono);
    font-size: 0.78rem;
    letter-spacing: 0.2em;
    color: var(--accent-b);
    text-transform: uppercase;
    margin-bottom: 1.5rem;
    opacity: 0;
    animation: slide-up 0.6s 0.2s forwards;
}

.hero-headline {
    margin-bottom: 1.5rem;
    max-width: 900px;
    background: linear-gradient(135deg, var(--text-hi) 0%, var(--accent-a) 50%, var(--accent-b) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    opacity: 0;
    animation: slide-up 0.8s 0.4s forwards;
}

.hero-sub {
    font-size: clamp(1.1rem, 2vw, 1.35rem);
    max-width: 620px;
    margin-bottom: 3rem;
    line-height: 1.7;
    opacity: 0;
    animation: slide-up 0.8s 0.6s forwards;
}

.hero-actions {
    display: flex;
    gap: 1.25rem;
    flex-wrap: wrap;
    opacity: 0;
    animation: slide-up 0.8s 0.8s forwards;
}

.hero-scroll-hint {
    margin-top: 6rem;
    text-align: center;
    width: fit-content;
}
.scroll-text {
    font-family: var(--font-mono);
    font-size: 0.65rem;
    letter-spacing: 0.2em;
    color: var(--text-lo);
    text-transform: uppercase;
}

/* ---- BUTTONS ---- */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.9rem 2rem;
    border-radius: var(--radius-full);
    font-size: 0.9rem;
    font-weight: 600;
    letter-spacing: 0.02em;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}
.btn::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(45deg, transparent 30%, rgba(255,255,255,0.08) 50%, transparent 70%);
    transform: translateX(-100%);
    transition: transform 0.5s ease;
}
.btn:hover::before { transform: translateX(100%); }

.btn-primary {
    background: var(--accent-a);
    color: #fff;
    box-shadow: 0 0 30px var(--glow-a), inset 0 1px 0 rgba(255,255,255,0.15);
}
.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 40px var(--glow-a);
}

.btn-ghost {
    border: 1px solid var(--border-hi);
    color: var(--text-mid);
    background: var(--bg-glass);
    backdrop-filter: blur(8px);
}
.btn-ghost:hover {
    border-color: var(--accent-a);
    color: var(--text-hi);
}

.btn-full { width: 100%; justify-content: center; }

/* ---- SERVICES GRID ---- */
.services-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
    margin-top: 3rem;
}

.s-card {
    background: var(--bg-glass);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: 2rem;
    position: relative;
    overflow: hidden;
    transition: all 0.4s ease;
    backdrop-filter: blur(12px);
}
.s-card::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--accent-a), transparent);
    opacity: 0;
    transition: opacity 0.4s ease;
}
.s-card:hover {
    border-color: rgba(var(--accent-a-rgb), 0.4);
    box-shadow: 0 0 40px rgba(var(--accent-a-rgb), 0.1), 0 20px 40px rgba(0,0,0,0.4);
    transform: translateY(-6px);
}
.s-card:hover::before { opacity: 1; }

.s-card--featured {
    border-color: rgba(var(--accent-a-rgb), 0.3);
    background: linear-gradient(145deg, var(--bg-glass), rgba(var(--accent-a-rgb), 0.06));
}
.s-card--featured::after {
    content: '';
    position: absolute;
    inset: -1px;
    border-radius: inherit;
    padding: 1px;
    background: linear-gradient(135deg, var(--accent-a), var(--accent-b));
    mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    mask-composite: exclude;
    -webkit-mask-composite: xor;
    pointer-events: none;
}

.s-card-icon {
    font-size: 2rem;
    margin-bottom: 1.25rem;
    display: inline-block;
    line-height: 1;
}

.s-card h3 {
    color: var(--text-hi);
    margin-bottom: 0.75rem;
    font-size: 1.35rem;
}
.s-card p { font-size: 0.95rem; margin-bottom: 1.5rem; }

.s-card-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}
.s-card-tags li {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    padding: 0.3rem 0.7rem;
    border-radius: var(--radius-full);
    border: 1px solid var(--border);
    color: var(--text-lo);
    letter-spacing: 0.05em;
    transition: all var(--trans-fast);
}
.s-card:hover .s-card-tags li {
    border-color: rgba(var(--accent-b-rgb), 0.3);
    color: var(--accent-b);
}

/* ---- STATS ---- */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 2rem;
}

.stat-item { text-align: center; }
.stat-num {
    font-family: var(--font-display);
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 700;
    color: var(--text-hi);
    line-height: 1;
    background: linear-gradient(135deg, var(--accent-a), var(--accent-b));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}
.stat-label {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--text-lo);
    letter-spacing: 0.1em;
    text-transform: uppercase;
    margin-top: 0.5rem;
}

/* ---- CONTACT FORM ---- */
.contact-inner { max-width: 680px; }
.contact-sub { font-size: 1.1rem; margin-bottom: 3rem; }

.contact-form { display: flex; flex-direction: column; gap: 1rem; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }

.contact-form input,
.contact-form select,
.contact-form textarea {
    background: var(--bg-glass);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    padding: 0.9rem 1.1rem;
    color: var(--text-hi);
    width: 100%;
    transition: border-color var(--trans-fast), box-shadow var(--trans-fast);
}
.contact-form input::placeholder,
.contact-form textarea::placeholder { color: var(--text-lo); }
.contact-form input:focus,
.contact-form select:focus,
.contact-form textarea:focus {
    border-color: var(--accent-a);
    box-shadow: 0 0 0 2px rgba(var(--accent-a-rgb), 0.15);
}
.contact-form select option { background: var(--bg-deep); }
.contact-form textarea { min-height: 150px; resize: vertical; }

.form-feedback {
    font-family: var(--font-mono);
    font-size: 0.85rem;
    padding: 0.75rem 1rem;
    border-radius: var(--radius-sm);
    display: none;
}
.form-feedback.success { background: rgba(0,255,136,0.1); color: var(--accent-c); border: 1px solid rgba(0,255,136,0.3); }
.form-feedback.error   { background: rgba(255,60,60,0.1); color: #ff6060; border: 1px solid rgba(255,60,60,0.3); }

/* RESPONSIVE */
@media (max-width: 900px) {
    .services-grid { grid-template-columns: 1fr; }
    .stats-grid { grid-template-columns: repeat(2, 1fr); }
    #s78-nav { padding: 1.2rem 1.5rem; }
    .nav-links { display: none; }
}
@media (max-width: 600px) {
    .form-row { grid-template-columns: 1fr; }
    .stats-grid { grid-template-columns: repeat(2, 1fr); }
    .hero-actions { flex-direction: column; align-items: flex-start; }
}