/* ================================================
   AKADEMI INOVASI INDONESIA
   Brand: Maroon #a31f34 · Black #333 · White
   Industrial / Mechanical Engineering
   ================================================ */

:root {
    --maroon: #a31f34;
    --maroon-dark: #871a2b;
    --maroon-light: #c73e52;
    --brand-black: #333333;
    --brand-dark: #1a1a1a;
}

html { scroll-behavior: smooth; }
*,*::before,*::after { box-sizing: border-box; }

/* ---- Technical Grid Pattern ---- */
.tech-grid {
    background-image:
        linear-gradient(rgba(255,255,255,0.08) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,0.08) 1px, transparent 1px);
    background-size: 60px 60px;
    pointer-events: none;
}
.tech-grid-light {
    background-image:
        linear-gradient(rgba(0,0,0,0.07) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0,0,0,0.07) 1px, transparent 1px);
    background-size: 60px 60px;
    pointer-events: none;
}

/* ---- Global small radius ---- */
img { border-radius: 8px; }
#navbar img, footer img { border-radius: 0; }

/* ---- Hero Image ---- */
.hero-img-wrapper {
    border-radius: 10px;
    box-shadow: 0 30px 80px -15px rgba(0,0,0,0.18);
}
.hero-img-wrapper img {
    transition: transform 8s ease;
    border-radius: 10px;
}
.hero-img-wrapper:hover img {
    transform: scale(1.03);
}

/* ---- Navbar ---- */
#navbar {
    transition: background 0.35s ease, border-color 0.35s ease, box-shadow 0.35s ease;
}

/* Logo */
#navbar .nav-logo { transition: filter 0.3s; }

/* Default: dark text on transparent (for white hero bg) */
#navbar .nav-link   { color: rgba(51,51,51,0.45); transition: color 0.3s; }
#navbar .nav-link:hover { color: var(--brand-black); }
#navbar .nav-mono   { color: rgba(51,51,51,0.3); transition: color 0.3s; }
#navbar .nav-divider { background: rgba(51,51,51,0.12); transition: background 0.3s; }
#navbar .nav-cta    { color: var(--maroon); transition: color 0.3s; }
#navbar .nav-cta:hover { color: var(--maroon-dark); }
#navbar .nav-menu-btn { color: var(--brand-black); transition: color 0.3s; }

/* Scrolled: white bg with subtle shadow */
#navbar.nav-scrolled {
    background: rgba(255,255,255,0.96);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid rgba(0,0,0,0.06);
    box-shadow: 0 1px 3px rgba(0,0,0,0.04);
}

/* Dark-hero pages: all-white logo + white text by default */
.template-tentang #navbar .nav-logo,
.template-join #navbar .nav-logo,
.template-portfolio #navbar .nav-logo        { filter: brightness(0) invert(1); }
.template-tentang #navbar .nav-link,
.template-join #navbar .nav-link,
.template-portfolio #navbar .nav-link        { color: rgba(255,255,255,0.5); }
.template-tentang #navbar .nav-link:hover,
.template-join #navbar .nav-link:hover,
.template-portfolio #navbar .nav-link:hover  { color: #fff; }
.template-tentang #navbar .nav-mono,
.template-join #navbar .nav-mono,
.template-portfolio #navbar .nav-mono        { color: rgba(255,255,255,0.3); }
.template-tentang #navbar .nav-divider,
.template-join #navbar .nav-divider,
.template-portfolio #navbar .nav-divider     { background: rgba(255,255,255,0.15); }
.template-tentang #navbar .nav-cta,
.template-join #navbar .nav-cta,
.template-portfolio #navbar .nav-cta         { color: rgba(255,255,255,0.8); }
.template-tentang #navbar .nav-cta:hover,
.template-join #navbar .nav-cta:hover,
.template-portfolio #navbar .nav-cta:hover   { color: #fff; }
.template-tentang #navbar .nav-menu-btn,
.template-join #navbar .nav-menu-btn,
.template-portfolio #navbar .nav-menu-btn    { color: #fff; }

/* When scrolled on dark-hero pages, revert to normal logo + dark text */
.template-tentang #navbar.nav-scrolled .nav-logo,
.template-join #navbar.nav-scrolled .nav-logo,
.template-portfolio #navbar.nav-scrolled .nav-logo       { filter: none; }
.template-tentang #navbar.nav-scrolled .nav-link,
.template-join #navbar.nav-scrolled .nav-link,
.template-portfolio #navbar.nav-scrolled .nav-link       { color: rgba(51,51,51,0.45); }
.template-tentang #navbar.nav-scrolled .nav-link:hover,
.template-join #navbar.nav-scrolled .nav-link:hover,
.template-portfolio #navbar.nav-scrolled .nav-link:hover { color: var(--brand-black); }
.template-tentang #navbar.nav-scrolled .nav-mono,
.template-join #navbar.nav-scrolled .nav-mono,
.template-portfolio #navbar.nav-scrolled .nav-mono       { color: rgba(51,51,51,0.3); }
.template-tentang #navbar.nav-scrolled .nav-divider,
.template-join #navbar.nav-scrolled .nav-divider,
.template-portfolio #navbar.nav-scrolled .nav-divider    { background: rgba(51,51,51,0.12); }
.template-tentang #navbar.nav-scrolled .nav-cta,
.template-join #navbar.nav-scrolled .nav-cta,
.template-portfolio #navbar.nav-scrolled .nav-cta        { color: var(--maroon); }
.template-tentang #navbar.nav-scrolled .nav-cta:hover,
.template-join #navbar.nav-scrolled .nav-cta:hover,
.template-portfolio #navbar.nav-scrolled .nav-cta:hover  { color: var(--maroon-dark); }
.template-tentang #navbar.nav-scrolled .nav-menu-btn,
.template-join #navbar.nav-scrolled .nav-menu-btn,
.template-portfolio #navbar.nav-scrolled .nav-menu-btn   { color: var(--brand-black); }

/* ---- Label ---- */
.label-mono {
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.6875rem;
    font-weight: 500;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    display: inline-block;
}

/* ---- Scroll Animations ---- */
.reveal {
    opacity: 0;
    transform: translateY(24px);
    transition: opacity 0.8s cubic-bezier(0.25,1,0.5,1),
                transform 0.8s cubic-bezier(0.25,1,0.5,1);
}
.reveal.visible { opacity: 1; transform: translateY(0); }
.reveal.d1 { transition-delay: 0.1s; }
.reveal.d2 { transition-delay: 0.2s; }
.reveal.d3 { transition-delay: 0.3s; }
.reveal.d4 { transition-delay: 0.4s; }

/* ---- Method Row ---- */
.method-row {
    border-bottom: 1px solid rgba(51,51,51,0.10);
    transition: background 0.3s, border-color 0.3s;
}
.method-row:first-child { border-top: 1px solid rgba(51,51,51,0.10); }
.method-row:hover { background: rgba(163,31,52,0.03); border-color: rgba(163,31,52,0.15); }
.method-row:hover + .method-row { border-top-color: rgba(163,31,52,0.15); }
.method-row:hover .method-num { color: var(--maroon); }
.method-row:hover .method-arrow { transform: translateX(6px); opacity: 1; color: var(--maroon); }
.method-arrow { transition: transform 0.3s, opacity 0.3s, color 0.3s; opacity: 0.2; }

/* ---- Stat ---- */
.stat-num { font-variant-numeric: tabular-nums; line-height: 1; }

/* ---- Quote ---- */
.quote-line { width: 40px; height: 2px; background: var(--maroon); display: inline-block; }
.divider-dot { display: flex; align-items: center; gap: 0.75rem; max-width: 160px; margin: 0 auto; }
.divider-dot::before,
.divider-dot::after { content: ''; flex: 1; height: 1px; background: rgba(51,51,51,0.12); }

/* ---- Buttons ---- */
.btn-maroon {
    display: inline-flex; align-items: center; gap: 0.5rem;
    padding: 0.875rem 2rem; border-radius: 6px;
    background: var(--maroon); color: #fff;
    font-weight: 700; font-size: 0.8125rem;
    letter-spacing: 0.05em; text-transform: uppercase;
    transition: background 0.2s, transform 0.2s;
}
.btn-maroon:hover { background: var(--maroon-dark); transform: translateY(-1px); }

.btn-outline-dark {
    display: inline-flex; align-items: center; gap: 0.5rem;
    padding: 0.875rem 2rem; border-radius: 6px;
    border: 1px solid rgba(51,51,51,0.2); color: var(--brand-black);
    font-weight: 600; font-size: 0.8125rem;
    letter-spacing: 0.05em; text-transform: uppercase;
    transition: border-color 0.2s, background 0.2s, color 0.2s;
}
.btn-outline-dark:hover { border-color: var(--maroon); color: var(--maroon); background: rgba(163,31,52,0.03); }

.btn-outline-light {
    display: inline-flex; align-items: center; gap: 0.5rem;
    padding: 0.875rem 2rem; border-radius: 6px;
    border: 1px solid rgba(255,255,255,0.2); color: #fff;
    font-weight: 600; font-size: 0.8125rem;
    letter-spacing: 0.05em; text-transform: uppercase;
    transition: border-color 0.2s, background 0.2s;
}
.btn-outline-light:hover { border-color: rgba(255,255,255,0.5); background: rgba(255,255,255,0.05); }

/* ---- Full-screen mobile menu ---- */
.mobile-overlay {
    position: fixed; inset: 0; z-index: 100;
    background: rgba(26,26,26,0.98);
    display: flex; align-items: center; justify-content: center;
    opacity: 0; pointer-events: none;
    transition: opacity 0.4s ease;
    -webkit-overflow-scrolling: touch;
    overflow-y: auto;
}
.mobile-overlay.open { opacity: 1; pointer-events: auto; }

/* ---- News Card ---- */
.news-card {
    border: 1px solid rgba(51,51,51,0.08);
    border-radius: 8px;
    background: #fff;
    transition: border-color 0.3s, box-shadow 0.3s;
    overflow: hidden;
}
.news-card img { border-radius: 0; }
.news-card:hover { border-color: rgba(163,31,52,0.2); box-shadow: 0 8px 30px rgba(0,0,0,0.06); }

/* ---- Engineering SVG Drawing ---- */
.eng-drawing { pointer-events: none; }
.eng-drawing-float {
    animation: engFloat 20s ease-in-out infinite;
}
@keyframes engFloat {
    0%, 100% { transform: translateY(0) rotate(0deg); }
    50%      { transform: translateY(-10px) rotate(0.5deg); }
}

/* ---- CTA ---- */
.cta-maroon {
    background: linear-gradient(135deg, #871a2b 0%, #a31f34 50%, #c73e52 100%);
    position: relative; overflow: hidden;
}
.cta-maroon::before {
    content: ''; position: absolute; inset: 0;
    background: radial-gradient(ellipse at 50% 120%, rgba(255,255,255,0.08) 0%, transparent 60%);
}

/* ---- Responsive / Mobile ---- */
@media (max-width: 639px) {
    .btn-maroon,
    .btn-outline-light,
    .btn-outline-dark {
        padding: 0.75rem 1.5rem;
        font-size: 0.75rem;
        width: 100%;
        justify-content: center;
    }
    .label-mono { font-size: 0.625rem; }
}

@media print { .no-print { display: none !important; } }