/* ============================================================
   Armor Hub v2 - Base & shared component vocabulary
   ============================================================ */

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

html {
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
    scroll-padding-top: calc(var(--topbar-h) + var(--nav-h) + env(safe-area-inset-top, 0px) + 8px);
}

body {
    font-family: var(--font-ui);
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
    overflow-x: hidden;
    min-height: 100vh;
    -webkit-font-smoothing: antialiased;
    text-rendering: optimizeLegibility;
}

img, video { display: block; max-width: 100%; height: auto; }
svg { max-width: 100%; }
.icon {
    display: inline-block;
    vertical-align: -0.15em;
    width: 1em;
    height: 1em;
    flex-shrink: 0;
}
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; cursor: pointer; background: none; border: none; }
input, select, textarea { font: inherit; color: inherit; }
ul { list-style: none; }

::selection { background: var(--gold-bright); color: var(--stone-950); }

:focus-visible {
    outline: 2px solid var(--gold-glow);
    outline-offset: 2px;
    border-radius: 4px;
}

/* --- Skip link (keyboard users) --- */
.skip-link {
    position: fixed;
    top: 0.6rem;
    left: 0.6rem;
    z-index: 2000;
    transform: translateY(-160%);
    background: var(--gold-bright);
    color: var(--stone-950);
    font-family: var(--font-display);
    font-weight: 700;
    font-size: 0.78rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    padding: 0.7rem 1.1rem;
    border-radius: var(--r-md);
    box-shadow: var(--shadow-md);
    transition: transform var(--t-fast) var(--ease-out);
}
.skip-link:focus { transform: translateY(0); outline: 2px solid var(--stone-950); outline-offset: -4px; }
.view:focus { outline: none; }

/* --- Scrollbar --- */
::-webkit-scrollbar { width: 12px; height: 12px; }
::-webkit-scrollbar-track { background: var(--stone-950); }
::-webkit-scrollbar-thumb {
    background: linear-gradient(180deg, var(--gold), var(--gold-deep));
    border: 3px solid var(--stone-950);
    border-radius: var(--r-pill);
}
::-webkit-scrollbar-thumb:hover { background: var(--gold-bright); }
* { scrollbar-color: var(--gold) var(--stone-950); }

/* --- Atmosphere background --- */
.atmosphere {
    position: fixed;
    inset: 0;
    z-index: -2;
    pointer-events: none;
    background:
        radial-gradient(1200px 800px at 82% -10%, rgba(202, 138, 4, 0.10), transparent 60%),
        radial-gradient(900px 700px at 8% 110%, rgba(120, 113, 108, 0.08), transparent 60%),
        linear-gradient(180deg, var(--stone-950) 0%, var(--stone-900) 50%, var(--stone-950) 100%);
}
.atmosphere::after {
    content: "";
    position: absolute;
    inset: 0;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.5'/%3E%3C/svg%3E");
    opacity: 0.03;
    mix-blend-mode: overlay;
}

/* --- Typography --- */
h1, h2, h3, h4 { font-family: var(--font-display); font-weight: 700; line-height: 1.05; letter-spacing: 0.01em; }

.display {
    font-family: var(--font-display);
    font-weight: 900;
    text-transform: uppercase;
}

.gold-text {
    background: linear-gradient(120deg, var(--paper) 0%, var(--gold-glow) 55%, var(--gold) 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 0.7rem;
    font-size: 0.72rem;
    letter-spacing: 0.32em;
    text-transform: uppercase;
    color: var(--gold-glow);
    font-weight: 500;
}
.eyebrow::before {
    content: "";
    width: 34px; height: 1px;
    background: linear-gradient(90deg, var(--gold), transparent);
}
.eyebrow.center { justify-content: center; }

.lead {
    font-size: clamp(1rem, 1.4vw, 1.18rem);
    color: var(--text-muted);
    max-width: 56ch;
}

/* --- Layout helpers --- */
.wrap { width: 100%; max-width: var(--maxw); margin-inline: auto; padding-inline: var(--gutter); }
.wrap-wide { max-width: var(--maxw-wide); }
.section-pad { padding-block: clamp(3.5rem, 9vh, 7rem); }
.stack > * + * { margin-top: 1rem; }

/* --- Glass surfaces --- */
.glass {
    background: var(--glass);
    border: 1px solid var(--glass-border-soft);
    border-radius: var(--r-lg);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    box-shadow: var(--shadow-md);
}
.glass-strong {
    background: var(--glass-strong);
    border: 1px solid var(--glass-border);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
}
.card-hover {
    transition: transform var(--t-med) var(--ease-out),
                border-color var(--t-med) var(--ease-out),
                box-shadow var(--t-med) var(--ease-out);
}
.card-hover:hover {
    transform: translateY(-5px);
    border-color: var(--glass-border);
    box-shadow: var(--shadow-lg), 0 0 0 1px rgba(234, 179, 8, 0.12);
}

/* --- Buttons --- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.6rem;
    font-family: var(--font-ui);
    font-weight: 600;
    letter-spacing: 0.04em;
    border-radius: var(--r-pill);
    padding: 0.8rem 1.5rem;
    transition: transform var(--t-fast) var(--ease-out),
                box-shadow var(--t-fast) var(--ease-out),
                background var(--t-fast), color var(--t-fast),
                border-color var(--t-fast), filter var(--t-fast);
}
.btn svg { width: 18px; height: 18px; }

.btn-primary {
    background: linear-gradient(135deg, var(--gold-bright), var(--gold));
    color: var(--stone-950);
    font-weight: 700;
    text-transform: uppercase;
    box-shadow: 0 14px 36px -14px rgba(234, 179, 8, 0.7);
}
.btn-primary:hover { transform: translateY(-2px); filter: brightness(1.05); box-shadow: 0 20px 46px -14px rgba(234, 179, 8, 0.85); }

.btn-ghost {
    border: 1px solid var(--glass-border);
    background: rgba(28, 25, 23, 0.4);
    color: var(--text);
    text-transform: uppercase;
    font-size: 0.78rem;
    letter-spacing: 0.16em;
    backdrop-filter: blur(8px);
}
.btn-ghost:hover { border-color: var(--gold); color: var(--gold-glow); background: rgba(202, 138, 4, 0.12); }

/* --- Pills / chips / badges --- */
.chip {
    display: inline-flex;
    align-items: center;
    gap: 0.45rem;
    font-size: 0.74rem;
    letter-spacing: 0.06em;
    color: var(--text-secondary, var(--text-muted));
    border: 1px solid var(--glass-border-soft);
    background: var(--glass);
    padding: 0.5rem 0.95rem;
    border-radius: var(--r-pill);
    backdrop-filter: blur(6px);
    transition: all var(--t-fast) var(--ease-out);
}
.chip:hover { color: var(--gold-glow); border-color: var(--glass-border); }
.chip.active,
.chip[aria-selected="true"] {
    background: linear-gradient(135deg, var(--gold-bright), var(--gold));
    color: var(--stone-950);
    border-color: transparent;
    box-shadow: 0 6px 20px -8px rgba(234, 179, 8, 0.7);
}

.badge {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    font-size: 0.62rem;
    font-weight: 600;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--gold-glow);
    background: rgba(234, 179, 8, 0.12);
    border: 1px solid var(--glass-border);
    padding: 0.3rem 0.65rem;
    border-radius: var(--r-pill);
}
.badge-gold {
    background: linear-gradient(135deg, var(--gold-bright), var(--gold));
    color: var(--stone-950);
    border-color: transparent;
}

/* Quiet rebuild mark — sits beside Armor Hub, never overpowers the brand */
.brand-ver {
    display: inline-flex;
    align-items: center;
    font-family: var(--font-display);
    font-size: 0.58rem;
    font-weight: 700;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--gold-glow);
    border: 1px solid rgba(234, 179, 8, 0.35);
    background: rgba(234, 179, 8, 0.08);
    padding: 0.18rem 0.45rem;
    border-radius: var(--r-pill);
    line-height: 1;
    white-space: nowrap;
    flex-shrink: 0;
}

/* --- Form fields --- */
.field {
    width: 100%;
    background: var(--glass-strong);
    border: 1px solid var(--glass-border-soft);
    color: var(--text);
    border-radius: var(--r-md);
    padding: 0.7rem 0.95rem;
    transition: border-color var(--t-fast) var(--ease-out), box-shadow var(--t-fast) var(--ease-out);
}
.field:focus {
    outline: none;
    border-color: var(--gold);
    box-shadow: 0 0 0 3px rgba(234, 179, 8, 0.2);
}
.field-label {
    display: block;
    font-size: 0.7rem;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: var(--text-muted);
    margin-bottom: 0.45rem;
}

/* --- Scroll reveal --- */
.reveal {
    opacity: 0;
    transform: translateY(34px);
    transition: opacity var(--t-slow) var(--ease-out), transform var(--t-slow) var(--ease-out);
    will-change: transform, opacity;
}
.reveal.in { opacity: 1; transform: none; }
.reveal.d1 { transition-delay: 0.1s; }
.reveal.d2 { transition-delay: 0.2s; }
.reveal.d3 { transition-delay: 0.3s; }
.reveal.d4 { transition-delay: 0.4s; }

/* --- Utility --- */
.center { text-align: center; }
.hidden { display: none !important; }
.sr-only {
    position: absolute; width: 1px; height: 1px;
    padding: 0; margin: -1px; overflow: hidden;
    clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0;
}

/* --- Reduced motion --- */
@media (prefers-reduced-motion: reduce) {
    html { scroll-behavior: auto; }
    *, *::before, *::after {
        animation-duration: 0.001ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.001ms !important;
    }
    .reveal { opacity: 1; transform: none; }
}