/* =============================================================
   snpd-main.css
   Star-Navi — Global Stylesheet
   All design tokens and shared styles for the entire site.
============================================================= */

/* ── DESIGN TOKENS ─────────────────────────────────────────── */
:root {
    --color-navy:         #0d1b2a;
    --color-dark-blue:    #1a2f45;
    --color-blue-accent:  #1e4d7f;
    --color-slate:        #2d3e50;
    --color-white:        #ffffff;
    --color-off-white:    #f8fafb;
    --color-gray-light:   #e8eef5;
    --color-gray:         #b8c5d6;
    --color-gray-dark:    #7a8699;
    --color-dark-gray:    #4a5568;
    --color-accent:       #0066cc;
    --color-accent-hover: #0052a3;
    --color-accent-light: #e6f0ff;
    --color-accent-dark:  #003d99;
    --color-highlight:    #005fa3;
    --color-success:      #2e7d32;
    --font-display: 'Roboto', sans-serif;
    --font-body:    'Roboto', sans-serif;
    --font-mono:    'IBM Plex Mono', monospace;
    --transition:        300ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-smooth: 500ms cubic-bezier(0.34, 1.56, 0.64, 1);
}

/* ── RESET ──────────────────────────────────────────────────── */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; }
body { font-family: var(--font-body); background: var(--color-white); color: var(--color-dark-gray); line-height: 1.6; font-size: 16px; }
img  { max-width: 100%; height: auto; display: block; }
a    { color: var(--color-accent); text-decoration: none; transition: color var(--transition); }

/* ── TYPOGRAPHY ─────────────────────────────────────────────── */
h1 { font-family: var(--font-display); font-size: clamp(2.5rem,6vw,4rem); font-weight: 700; line-height: 1.2; letter-spacing: -0.5px; color: var(--color-navy); }
h2 { font-family: var(--font-display); font-size: clamp(1.75rem,4vw,2.5rem); font-weight: 700; line-height: 1.3; color: var(--color-navy); }
h3 { font-family: var(--font-display); font-size: 1.1rem; font-weight: 700; color: var(--color-navy); text-transform: uppercase; }
h4 { font-family: var(--font-display); font-size: 1rem; font-weight: 700; color: var(--color-navy); }
p  { font-size: 1rem; color: var(--color-dark-gray); line-height: 1.7; }
.label { font-family: var(--font-mono); font-size: 0.75rem; letter-spacing: 0.2em; text-transform: uppercase; color: var(--color-accent); font-weight: 600; }

/* ── LAYOUT ─────────────────────────────────────────────────── */
.container { max-width: 1400px; margin: 0 auto; padding: 0 2rem; }
@media (max-width: 768px) { .container { padding: 0 1.5rem; } }

/* ── BUTTONS ────────────────────────────────────────────────── */
.btn {
    display: inline-flex; align-items: center; justify-content: center;
    gap: 0.75rem; padding: 1rem 2.5rem;
    font-family: var(--font-display); font-size: 0.95rem; font-weight: 600;
    letter-spacing: 0.3px; border: none; border-radius: 12px; cursor: pointer;
    transition: all var(--transition-smooth); text-transform: uppercase;
    box-shadow: 0 4px 15px rgba(0,102,204,0.15); position: relative; overflow: hidden;
}
.btn::before { content: ''; position: absolute; top: 0; left: -100%; width: 100%; height: 100%; background: rgba(255,255,255,0.2); transition: left var(--transition); }
.btn:hover::before { left: 100%; }
.btn-primary { background: linear-gradient(135deg, var(--color-accent) 0%, var(--color-highlight) 100%); color: var(--color-white); }
.btn-primary:hover { background: linear-gradient(135deg, var(--color-accent-hover) 0%, var(--color-accent-dark) 100%); transform: translateY(-2px); box-shadow: 0 8px 25px rgba(0,102,204,0.25); }
.btn-secondary { background: var(--color-off-white); color: var(--color-accent); border: 2px solid var(--color-accent); box-shadow: none; }
.btn-secondary:hover { background: var(--color-accent-light); transform: translateY(-2px); box-shadow: 0 8px 20px rgba(0,102,204,0.15); }
.btn-small { padding: 0.75rem 1.5rem; font-size: 0.85rem; }
@media (max-width: 768px) {
    .btn { padding: 1.1rem 2rem; font-size: 0.9rem; min-height: 48px; width: 100%; }
    .btn-small { width: auto; }
}

/* ── HEADER ─────────────────────────────────────────────────── */
header { position: fixed; top: 0; left: 0; right: 0; z-index: 1000; background: rgba(255,255,255,0.98); backdrop-filter: blur(10px); border-bottom: 1px solid var(--color-gray-light); padding: 1rem 0; box-shadow: 0 2px 8px rgba(0,0,0,0.05); }
nav { display: flex; justify-content: space-between; align-items: center; max-width: 1400px; margin: 0 auto; padding: 0 2rem; }
@media (max-width: 768px) { nav { padding: 0 1.5rem; } }
.logo { font-family: var(--font-display); font-size: 1.2rem; font-weight: 700; letter-spacing: 1.5px; color: var(--color-navy); text-transform: uppercase; z-index: 10; }
.logo a { color: inherit; }
.nav-links { display: flex; list-style: none; gap: 3rem; }
.nav-links a { font-size: 0.85rem; font-weight: 500; color: var(--color-dark-gray); letter-spacing: 0.5px; text-transform: uppercase; position: relative; }
.nav-links a::after { content: ''; position: absolute; bottom: -8px; left: 0; width: 0; height: 2.5px; background: linear-gradient(90deg, var(--color-accent), var(--color-highlight)); border-radius: 2px; transition: width var(--transition); }
.nav-links a:hover, .nav-links a.active { color: var(--color-accent); }
.nav-links a:hover::after, .nav-links a.active::after { width: 100%; }
.nav-cta { display: flex; gap: 1rem; align-items: center; }

/* ── HAMBURGER ───────────────────────────────────────────────── */
.menu-toggle { display: none; flex-direction: column; gap: 6px; cursor: pointer; background: none; border: none; padding: 8px; z-index: 1002; position: relative; }
.menu-toggle span { display: block; width: 24px; height: 3px; background: var(--color-navy); border-radius: 2px; transition: transform 350ms cubic-bezier(0.4,0,0.2,1), opacity 250ms ease, background 250ms ease; transform-origin: center; }
.menu-toggle.active span { background: var(--color-white); }
.menu-toggle.active span:nth-child(1) { transform: translateY(9px) rotate(45deg); }
.menu-toggle.active span:nth-child(2) { opacity: 0; transform: scaleX(0); }
.menu-toggle.active span:nth-child(3) { transform: translateY(-9px) rotate(-45deg); }

/* ── MOBILE OVERLAY ─────────────────────────────────────────── */
.mobile-overlay { display: none; position: fixed; inset: 0; z-index: 1001; background: rgba(13,27,42,0.97); backdrop-filter: blur(12px); opacity: 0; transform: translateY(-100%); transition: transform 420ms cubic-bezier(0.4,0,0.2,1), opacity 320ms cubic-bezier(0.4,0,0.2,1); pointer-events: none; visibility: hidden; }
.mobile-overlay.active { opacity: 1; transform: translateY(0); pointer-events: auto; visibility: visible; }
.mobile-overlay-nav { display: flex; flex-direction: column; justify-content: center; align-items: center; width: 100%; height: 100%; padding: 6rem 2rem 3rem; }
.mobile-overlay-links { list-style: none; display: flex; flex-direction: column; align-items: center; gap: 0.25rem; flex: 1; justify-content: center; }
.mobile-overlay-links li { width: 100%; text-align: center; opacity: 0; transform: translateY(20px); transition: opacity 300ms ease, transform 300ms ease; }
.mobile-overlay-links li.visible { opacity: 1; transform: translateY(0); }
.mobile-overlay-links a { display: block; padding: 1.1rem 2rem; font-family: var(--font-display); font-size: clamp(1.4rem,5vw,1.9rem); font-weight: 700; letter-spacing: 0.08em; text-transform: uppercase; color: rgba(255,255,255,0.75); transition: color 200ms ease, letter-spacing 200ms ease; }
.mobile-overlay-links a:hover { color: var(--color-white); letter-spacing: 0.12em; }
.mobile-overlay-cta { width: 100%; max-width: 340px; padding-top: 2rem; border-top: 1px solid rgba(255,255,255,0.12); display: flex; justify-content: center; opacity: 0; transform: translateY(20px); transition: opacity 300ms ease 300ms, transform 300ms ease 300ms; }
.mobile-overlay-cta.visible { opacity: 1; transform: translateY(0); }
.mobile-overlay-cta .btn { width: 100%; max-width: 340px; }
@media (max-width: 1023px) { .menu-toggle { display: flex; } .nav-links { display: none; } .nav-cta .btn-primary.btn-small { display: none; } .mobile-overlay { display: flex; } }
body.menu-open { overflow: hidden; }

/* ── SHARED SECTION PATTERNS ────────────────────────────────── */
.section { padding: 5rem 0; }
.section-alt { background: var(--color-off-white); }
@media (min-width: 768px) { .section { padding: 7rem 0; } }
.section-header { margin-bottom: 4rem; }
.section-header .label { display: block; margin-bottom: 0.75rem; }
.section-header h2 { margin-bottom: 1.25rem; }
.section-header > p { max-width: 700px; font-size: 1.05rem; }

/* ── HERO (landing page) ─────────────────────────────────────── */
.hero {
    min-height: 100vh;
    background: linear-gradient(135deg, var(--color-navy) 0%, var(--color-dark-blue) 60%, var(--color-blue-accent) 100%);
    display: flex; align-items: center; justify-content: center;
    padding-top: 80px; position: relative; overflow: hidden;
}
.hero::before {
    content: '';
    position: absolute; inset: 0;
    background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.025'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
}
.hero-inner { position: relative; z-index: 1; text-align: center; padding: 4rem 0; }
.hero h1 { color: var(--color-white); margin-bottom: 1.5rem; max-width: 900px; margin-left: auto; margin-right: auto; }
.hero-subtitle { font-size: clamp(1rem,2.5vw,1.25rem); color: rgba(255,255,255,0.8); max-width: 700px; margin: 0 auto 2.5rem; line-height: 1.7; }
.hero-cta { display: flex; gap: 1.5rem; justify-content: center; flex-wrap: wrap; margin-bottom: 4rem; }
.hero-stats { display: flex; justify-content: center; gap: 3rem; flex-wrap: wrap; padding-top: 3rem; border-top: 1px solid rgba(255,255,255,0.1); }
.hero-stat { text-align: center; }
.hero-stat-value { font-family: var(--font-mono); font-size: 2rem; font-weight: 700; color: var(--color-white); line-height: 1; margin-bottom: 0.4rem; }
.hero-stat-label { font-size: 0.7rem; letter-spacing: 0.18em; text-transform: uppercase; color: rgba(255,255,255,0.5); }

/* ── MISSION TOOL / SEARCH SECTION ─────────────────────────── */
.search-section { padding: 5rem 0; background: var(--color-off-white); border-bottom: 1px solid var(--color-gray-light); }
@media (min-width: 768px) { .search-section { padding: 7rem 0; } }
.search-form { background: var(--color-white); border-radius: 16px; padding: 0; box-shadow: 0 10px 40px rgba(0,102,204,0.12); max-width: 960px; margin: 0 auto; overflow: hidden; }
.form-group-block { padding: 2rem 2.5rem; border-bottom: 1px solid var(--color-gray-light); }
@media (max-width: 600px) { .form-group-block { padding: 1.5rem; } }
.form-group-heading { display: flex; align-items: center; gap: 0.75rem; margin-bottom: 1.5rem; }
.form-group-heading-index { font-family: var(--font-mono); font-size: 0.65rem; font-weight: 700; letter-spacing: 0.15em; color: var(--color-white); background: var(--color-accent); padding: 0.3rem 0.6rem; border-radius: 4px; }
.form-group-heading-text { font-family: var(--font-mono); font-size: 0.7rem; font-weight: 600; letter-spacing: 0.18em; text-transform: uppercase; color: var(--color-gray-dark); }
.form-group-row { display: grid; grid-template-columns: repeat(2,1fr); gap: 1.25rem 2rem; }
@media (max-width: 600px) { .form-group-row { grid-template-columns: 1fr; gap: 1rem; } }
.form-group { display: flex; flex-direction: column; }
.form-label { display: flex; align-items: baseline; gap: 0.4rem; font-weight: 600; color: var(--color-navy); margin-bottom: 0.5rem; font-size: 0.875rem; }
.form-label-optional { font-family: var(--font-mono); font-size: 0.6rem; font-weight: 400; letter-spacing: 0.1em; text-transform: uppercase; color: var(--color-gray-dark); }
.form-select { width: 100%; padding: 0.8rem 2.5rem 0.8rem 1rem; border: 2px solid var(--color-gray-light); border-radius: 8px; font-family: var(--font-body); font-size: 0.95rem; color: var(--color-navy); background-color: var(--color-off-white); background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%237a8699' stroke-width='1.8' fill='none' stroke-linecap='round'/%3E%3C/svg%3E"); background-repeat: no-repeat; background-position: right 1rem center; appearance: none; transition: border-color var(--transition), box-shadow var(--transition); }
.form-select:focus { outline: none; border-color: var(--color-accent); background-color: var(--color-white); box-shadow: 0 0 0 3px var(--color-accent-light); }
.form-cta-block { padding: 2rem 2.5rem; background: linear-gradient(135deg, var(--color-navy) 0%, var(--color-dark-blue) 100%); }
@media (max-width: 600px) { .form-cta-block { padding: 1.5rem; } }
.form-cta-note { font-family: var(--font-mono); font-size: 0.65rem; letter-spacing: 0.12em; text-transform: uppercase; color: rgba(255,255,255,0.4); margin-bottom: 1rem; }
.search-button { width: 100%; padding: 1.15rem 2rem; font-size: 1rem; }
.search-results { display: none; margin-top: 3rem; }
.search-results.active { display: block; }
.results-header { margin-bottom: 2rem; padding: 1.5rem; background: var(--color-off-white); border-radius: 8px; border-left: 4px solid var(--color-success); }
.results-header h3 { color: var(--color-success); margin-bottom: 0.5rem; }
.results-grid { display: grid; grid-template-columns: repeat(auto-fit,minmax(280px,1fr)); gap: 2rem; }
.result-card { background: var(--color-white); border: 2px solid var(--color-accent); border-radius: 12px; padding: 2rem; transition: all var(--transition-smooth); position: relative; overflow: hidden; }
.result-card::before { content: '✓ MATCH'; position: absolute; top: 1rem; right: 1rem; background: var(--color-success); color: var(--color-white); padding: 0.5rem 1rem; border-radius: 6px; font-family: var(--font-mono); font-size: 0.65rem; font-weight: 700; letter-spacing: 0.1em; }
.result-card:hover { transform: translateY(-8px); box-shadow: 0 12px 40px rgba(0,102,204,0.2); }
.result-title { font-size: 1.2rem; font-weight: 700; color: var(--color-navy); margin-bottom: 1rem; margin-top: 1.5rem; }
.result-specs { display: flex; flex-wrap: wrap; gap: 0.75rem; margin-bottom: 1.5rem; }
.result-spec-tag { font-family: var(--font-mono); font-size: 0.65rem; padding: 0.5rem 0.875rem; background: var(--color-accent-light); color: var(--color-accent); border-radius: 6px; text-transform: uppercase; font-weight: 600; }
.result-description { font-size: 0.95rem; color: var(--color-dark-gray); line-height: 1.7; margin-bottom: 1.5rem; }
.result-match-reason { padding: 1rem; background: var(--color-accent-light); border-left: 3px solid var(--color-accent); border-radius: 6px; font-size: 0.9rem; color: var(--color-blue-accent); }
.result-link { display: inline-flex; align-items: center; gap: 0.5rem; margin-top: 1rem; font-family: var(--font-mono); font-size: 0.75rem; font-weight: 600; letter-spacing: 0.1em; text-transform: uppercase; color: var(--color-accent); }

/* ── CAPABILITIES SECTION ───────────────────────────────────── */
.capabilities-section { padding: 5rem 0; background: var(--color-white); border-bottom: 1px solid var(--color-gray-light); }
@media (min-width: 768px) { .capabilities-section { padding: 7rem 0; } }
.capabilities-grid { display: grid; grid-template-columns: 1fr; gap: 2rem; }
@media (min-width: 768px) { .capabilities-grid { grid-template-columns: repeat(2,1fr); gap: 3rem; } }
@media (min-width: 1024px) { .capabilities-grid { grid-template-columns: repeat(3,1fr); } }
.capability-card { background: linear-gradient(135deg, var(--color-off-white) 0%, var(--color-white) 100%); border: 1px solid var(--color-gray-light); padding: 2.5rem 2rem; border-radius: 12px; transition: all var(--transition-smooth); position: relative; overflow: hidden; }
.capability-card::before { content: ''; position: absolute; top: 0; left: 0; width: 4px; height: 0; background: linear-gradient(180deg, var(--color-accent), var(--color-highlight)); transition: height var(--transition-smooth); }
.capability-card:hover { border-color: var(--color-accent); background: var(--color-white); box-shadow: 0 8px 24px rgba(0,102,204,0.12); transform: translateY(-4px); }
.capability-card:hover::before { height: 100%; }
.capability-card h4 { margin-bottom: 1rem; }
.capability-card p { font-size: 0.95rem; line-height: 1.7; }

/* ── PRODUCTS SECTION (homepage cards) ──────────────────────── */
.products-section { padding: 5rem 0; background: var(--color-off-white); border-bottom: 1px solid var(--color-gray-light); }
@media (min-width: 768px) { .products-section { padding: 7rem 0; } }
.products-grid { display: grid; grid-template-columns: 1fr; gap: 2rem; }
@media (min-width: 768px) { .products-grid { grid-template-columns: repeat(2,1fr); gap: 3rem; } }
@media (min-width: 1024px) { .products-grid { grid-template-columns: repeat(4,1fr); } }
.product-card { background: var(--color-white); border: 1px solid var(--color-gray-light); border-radius: 12px; overflow: hidden; transition: all var(--transition-smooth); box-shadow: 0 4px 12px rgba(0,0,0,0.08); }
.product-card:hover { border-color: var(--color-accent); box-shadow: 0 12px 32px rgba(0,102,204,0.15); transform: translateY(-8px); }
.product-header { background: linear-gradient(135deg, var(--color-dark-blue) 0%, var(--color-blue-accent) 100%); padding: 2.5rem 2rem; color: var(--color-white); min-height: 200px; display: flex; align-items: flex-end; }
.product-category { font-family: var(--font-mono); font-size: 0.65rem; letter-spacing: 0.2em; text-transform: uppercase; color: rgba(255,255,255,0.7); margin-bottom: 0.75rem; display: block; }
.product-card h3 { color: var(--color-white); text-transform: none; font-weight: 600; }
.product-body { padding: 2rem; }
.product-specs { display: flex; flex-wrap: wrap; gap: 0.75rem; margin-bottom: 1.5rem; }
.spec-tag { font-family: var(--font-mono); font-size: 0.65rem; letter-spacing: 0.1em; padding: 0.5rem 1rem; background: var(--color-accent-light); color: var(--color-accent); text-transform: uppercase; border: 1px solid var(--color-accent); border-radius: 8px; transition: all var(--transition); }
.spec-tag:hover { background: var(--color-accent); color: var(--color-white); }
.product-description { font-size: 0.95rem; color: var(--color-dark-gray); line-height: 1.7; margin-bottom: 1.5rem; }
.product-cta { display: inline-flex; align-items: center; gap: 0.75rem; font-family: var(--font-mono); font-size: 0.75rem; letter-spacing: 0.15em; text-transform: uppercase; font-weight: 600; color: var(--color-accent); transition: gap var(--transition); }
.product-cta:hover { gap: 1.25rem; }

/* ── CTA SECTION ────────────────────────────────────────────── */
.cta-section { padding: 4rem 0; background: linear-gradient(135deg, var(--color-navy) 0%, var(--color-dark-blue) 100%); color: var(--color-white); text-align: center; }
.cta-content { max-width: 800px; margin: 0 auto; }
.cta-section h2 { color: var(--color-white); margin-bottom: 1.5rem; }
.cta-section p { color: rgba(255,255,255,0.85); font-size: 1.05rem; margin-bottom: 2rem; }
.cta-section .btn { background: var(--color-white); color: var(--color-navy); border: none; }
.cta-section .btn:hover { background: var(--color-off-white); }

/* ── INNER PAGE HERO (shared across non-home pages) ─────────── */
/* FIX: margin-top matches actual fixed header height (68px) so there
   is zero white gap between the header and the hero section.        */
.page-hero { margin-top: 68px; padding: 5rem 0 4rem; background: linear-gradient(135deg, var(--color-navy) 0%, var(--color-dark-blue) 60%, var(--color-blue-accent) 100%); position: relative; overflow: hidden; }
.page-hero::before { content: ''; position: absolute; inset: 0; background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.03'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E"); }
.page-hero-inner { position: relative; z-index: 1; }
.page-hero .label { color: rgba(255,255,255,0.6); margin-bottom: 1rem; display: block; }
.page-hero h1 { color: var(--color-white); margin-bottom: 1.5rem; }
.page-hero p { color: rgba(255,255,255,0.8); font-size: 1.15rem; max-width: 680px; line-height: 1.8; }
.page-hero-meta { display: flex; gap: 3rem; margin-top: 3rem; flex-wrap: wrap; }
.page-hero-stat { border-left: 3px solid rgba(255,255,255,0.3); padding-left: 1.25rem; }
.page-hero-stat-value { font-family: var(--font-mono); font-size: 1.75rem; font-weight: 700; color: var(--color-white); line-height: 1; margin-bottom: 0.4rem; }
.page-hero-stat-label { font-size: 0.75rem; letter-spacing: 0.15em; text-transform: uppercase; color: rgba(255,255,255,0.5); }

/* ── FOOTER ─────────────────────────────────────────────────── */
footer { background: var(--color-navy); color: var(--color-gray-light); padding: 5rem 0 0; border-top: 3px solid var(--color-blue-accent); }
.footer-grid { display: grid; grid-template-columns: repeat(4,1fr); gap: 2.5rem 3rem; margin-bottom: 4rem; }
@media (max-width: 900px) { .footer-grid { grid-template-columns: repeat(2,1fr); gap: 2.5rem 2rem; } }
@media (max-width: 480px) { .footer-grid { grid-template-columns: 1fr; gap: 2rem; } }
.footer-section h4 { font-family: var(--font-mono); font-size: 0.7rem; font-weight: 600; color: var(--color-accent); text-transform: uppercase; letter-spacing: 0.2em; margin-bottom: 1.25rem; padding-bottom: 0.75rem; border-bottom: 1px solid rgba(255,255,255,0.08); }
.footer-links { list-style: none; display: flex; flex-direction: column; gap: 0.6rem; }
.footer-links a { color: var(--color-gray); font-size: 0.875rem; line-height: 1.5; transition: color var(--transition), padding-left var(--transition); display: inline-block; }
.footer-links a:hover { color: var(--color-white); padding-left: 0.4rem; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,0.08); padding: 1.75rem 0; }
.footer-bottom-main { display: grid; grid-template-columns: 1fr auto 1fr; align-items: center; gap: 1rem; margin-bottom: 0.875rem; }
.footer-copy { font-family: var(--font-mono); font-size: 0.75rem; letter-spacing: 0.05em; color: var(--color-gray-dark); }
.footer-brand { font-family: var(--font-display); font-size: 0.8rem; font-weight: 700; letter-spacing: 0.25em; text-transform: uppercase; color: rgba(255,255,255,0.35); text-align: center; }
.footer-est { font-family: var(--font-mono); font-size: 0.75rem; letter-spacing: 0.08em; color: var(--color-gray-dark); text-align: right; }
.footer-legal { text-align: center; font-family: var(--font-mono); font-size: 0.65rem; letter-spacing: 0.1em; color: rgba(255,255,255,0.2); text-transform: uppercase; }
@media (max-width: 768px) {
    .footer-bottom-main { grid-template-columns: 1fr; text-align: center; gap: 0.5rem; }
    .footer-copy, .footer-brand, .footer-est { text-align: center; }
}

/* ── SKIP TO CONTENT — hidden, accessibility only on keyboard focus ─ */
.skip-link { display: none; }