/* =====================================================
   ARGHAY CONSULTING — MAIN STYLESHEET
   Dark Enterprise | Data & AI Aesthetic
   ===================================================== */

:root {
    --bg:       #050810;
    --bg-2:     #0D1321;
    --bg-card:  #0F1929;
    --bg-card2: #141E30;
    --border:   rgba(0, 212, 255, 0.12);
    --border-2: rgba(255,255,255,0.06);
    --cyan:     #00D4FF;
    --cyan-dim: rgba(0, 212, 255, 0.15);
    --cyan-glow:rgba(0, 212, 255, 0.35);
    --gold:     #F5A623;
    --white:    #F0F4FF;
    --muted:    #7A8BA5;
    --text:     #C8D8EF;
    --font-display: 'Syne', sans-serif;
    --font-body:    'DM Sans', sans-serif;
    --font-mono:    'JetBrains Mono', monospace;
    --radius:   12px;
    --radius-lg:20px;
    --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --max-w:    1240px;
    --shadow:   0 24px 64px rgba(0,0,0,0.5);
}

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

html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; }

body {
    background: var(--bg);
    color: var(--text);
    font-family: var(--font-body);
    font-size: 16px;
    line-height: 1.7;
    overflow-x: hidden;
}

/* Noise texture overlay */
.noise-overlay {
    position: fixed; inset: 0; z-index: 0;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)' opacity='0.03'/%3E%3C/svg%3E");
    pointer-events: none;
    opacity: 0.4;
}

/* =====================================================
   TYPOGRAPHY
   ===================================================== */
h1,h2,h3,h4,h5 { font-family: var(--font-display); color: var(--white); line-height: 1.15; font-weight: 700; }
h1 { font-size: clamp(2.4rem, 5vw, 4.2rem); font-weight: 800; letter-spacing: -0.02em; }
h2 { font-size: clamp(1.8rem, 3.5vw, 2.8rem); letter-spacing: -0.01em; }
h3 { font-size: clamp(1.2rem, 2vw, 1.6rem); }
h4 { font-size: 1rem; font-weight: 600; text-transform: uppercase; letter-spacing: 0.08em; color: var(--cyan); }
p  { color: var(--text); max-width: 70ch; }
a  { color: var(--cyan); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--white); }
.mono { font-family: var(--font-mono); font-size: 0.85em; color: var(--cyan); }

/* =====================================================
   LAYOUT
   ===================================================== */
.container { max-width: var(--max-w); margin: 0 auto; padding: 0 24px; }
.section { padding: 100px 0; position: relative; z-index: 1; }
.section-sm { padding: 60px 0; }
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; align-items: center; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
@media (max-width: 900px) {
    .grid-2, .grid-3 { grid-template-columns: 1fr; }
    .grid-4 { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 600px) {
    .grid-4 { grid-template-columns: 1fr; }
    .section { padding: 70px 0; }
}

/* =====================================================
   NAVIGATION
   ===================================================== */
.site-header {
    position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
    padding: 24px 0;
    transition: all var(--transition);
}
.site-header.scrolled {
    background: rgba(5,8,16,0.92);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border);
    padding: 14px 0;
}
.nav-container {
    max-width: var(--max-w); margin: 0 auto; padding: 0 24px;
    display: flex; align-items: center; gap: 40px;
}
.logo { display: flex; align-items: center; gap: 12px; text-decoration: none; }
.logo-mark {
    width: 40px; height: 40px; border-radius: 10px;
    background: linear-gradient(135deg, var(--cyan), #0066CC);
    display: grid; place-items: center;
    font-family: var(--font-display); font-weight: 800; font-size: 1rem;
    color: #fff; flex-shrink: 0;
}
.logo-text { display: flex; flex-direction: column; line-height: 1; }
.logo-name { font-family: var(--font-display); font-weight: 800; font-size: 1.1rem; color: var(--white); }
.logo-sub  { font-size: 0.65rem; color: var(--muted); text-transform: uppercase; letter-spacing: 0.1em; }

.nav-links { list-style: none; display: flex; gap: 8px; margin-left: auto; }
.nav-links a {
    padding: 8px 16px; border-radius: 8px;
    color: var(--muted); font-size: 0.9rem; font-weight: 500;
    transition: all var(--transition); display: block;
}
.nav-links a:hover, .nav-links a.active { color: var(--white); background: var(--cyan-dim); }

.nav-cta {
    padding: 10px 22px; border-radius: 8px;
    background: var(--cyan); color: #000 !important;
    font-weight: 600; font-size: 0.9rem;
    transition: all var(--transition); white-space: nowrap;
    flex-shrink: 0;
}
.nav-cta:hover { background: var(--white); transform: translateY(-1px); }

.mobile-toggle { display: none; flex-direction: column; gap: 5px; background: none; border: none; cursor: pointer; padding: 8px; }
.mobile-toggle span { width: 24px; height: 2px; background: var(--white); border-radius: 2px; transition: all var(--transition); display: block; }
.mobile-toggle.open span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.mobile-toggle.open span:nth-child(2) { opacity: 0; }
.mobile-toggle.open span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

.mobile-menu { display: none; background: var(--bg-2); border-bottom: 1px solid var(--border); }
.mobile-menu.open { display: block; }
.mobile-menu ul { list-style: none; padding: 16px 24px 24px; }
.mobile-menu li a { display: block; padding: 12px 0; color: var(--text); border-bottom: 1px solid var(--border-2); font-size: 1.05rem; }

@media (max-width: 900px) {
    .nav-links, .nav-cta { display: none; }
    .mobile-toggle { display: flex; margin-left: auto; }
}

/* =====================================================
   BUTTONS
   ===================================================== */
.btn {
    display: inline-flex; align-items: center; gap: 8px;
    padding: 14px 28px; border-radius: 10px;
    font-family: var(--font-display); font-weight: 600; font-size: 0.95rem;
    cursor: pointer; transition: all var(--transition); border: none; text-decoration: none;
}
.btn-primary {
    background: var(--cyan); color: #000;
    box-shadow: 0 0 30px var(--cyan-glow);
}
.btn-primary:hover { background: var(--white); color: #000; transform: translateY(-2px); box-shadow: 0 0 40px var(--cyan-glow); }
.btn-outline {
    background: transparent; color: var(--white);
    border: 1.5px solid var(--border);
}
.btn-outline:hover { border-color: var(--cyan); color: var(--cyan); background: var(--cyan-dim); }
.btn-group { display: flex; gap: 14px; flex-wrap: wrap; }

/* =====================================================
   CARDS
   ===================================================== */
.card {
    background: var(--bg-card);
    border: 1px solid var(--border-2);
    border-radius: var(--radius-lg);
    padding: 36px;
    transition: all var(--transition);
    position: relative; overflow: hidden;
}
.card::before {
    content: ''; position: absolute;
    inset: 0; border-radius: inherit;
    background: linear-gradient(135deg, var(--cyan-dim), transparent);
    opacity: 0; transition: opacity var(--transition);
}
.card:hover { border-color: var(--border); transform: translateY(-4px); box-shadow: var(--shadow); }
.card:hover::before { opacity: 1; }
.card-icon {
    width: 52px; height: 52px; border-radius: 12px;
    background: var(--cyan-dim); border: 1px solid var(--border);
    display: grid; place-items: center;
    font-size: 1.5rem; margin-bottom: 20px;
}
.card h3 { margin-bottom: 12px; }
.card p { color: var(--muted); font-size: 0.95rem; }

/* =====================================================
   SECTION LABELS / TAGS
   ===================================================== */
.section-tag {
    display: inline-flex; align-items: center; gap: 8px;
    background: var(--cyan-dim); border: 1px solid var(--border);
    padding: 6px 16px; border-radius: 100px;
    font-family: var(--font-mono); font-size: 0.78rem; color: var(--cyan);
    text-transform: uppercase; letter-spacing: 0.05em;
    margin-bottom: 20px;
}
.section-tag::before { content: '●'; font-size: 0.5rem; }

.section-header { margin-bottom: 60px; }
.section-header h2 { margin-bottom: 16px; }
.section-header p { font-size: 1.05rem; color: var(--muted); }

/* =====================================================
   HERO — HOME
   ===================================================== */
.hero {
    min-height: 100vh;
    display: flex; flex-direction: column; justify-content: center;
    position: relative; overflow: hidden;
    padding-top: 120px; padding-bottom: 80px;
}

.hero-grid-bg {
    position: absolute; inset: 0;
    background-image:
        linear-gradient(rgba(0,212,255,0.04) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0,212,255,0.04) 1px, transparent 1px);
    background-size: 60px 60px;
    mask-image: radial-gradient(ellipse 80% 70% at 50% 50%, black 0%, transparent 100%);
}

.hero-glow {
    position: absolute;
    width: 700px; height: 700px;
    background: radial-gradient(circle, rgba(0,212,255,0.08) 0%, transparent 70%);
    top: -100px; right: -100px; pointer-events: none;
}
.hero-glow-2 {
    position: absolute;
    width: 400px; height: 400px;
    background: radial-gradient(circle, rgba(0,102,204,0.12) 0%, transparent 70%);
    bottom: -50px; left: 10%; pointer-events: none;
}

.hero-content { position: relative; z-index: 1; }
.hero-eyebrow {
    display: inline-flex; align-items: center; gap: 10px;
    font-family: var(--font-mono); font-size: 0.82rem; color: var(--cyan);
    margin-bottom: 28px;
}
.hero-eyebrow .dot { width: 8px; height: 8px; border-radius: 50%; background: var(--cyan); animation: pulse 2s infinite; }
@keyframes pulse { 0%,100%{opacity:1;transform:scale(1)} 50%{opacity:0.5;transform:scale(0.8)} }

.hero h1 { max-width: 900px; margin-bottom: 24px; }
.hero h1 span { color: var(--cyan); position: relative; }
.hero-sub { font-size: 1.1rem; color: var(--muted); max-width: 620px; margin-bottom: 44px; }

.hero-tech-strip {
    display: flex; align-items: center; gap: 32px;
    margin-top: 64px; padding-top: 40px;
    border-top: 1px solid var(--border-2); flex-wrap: wrap;
}
.hero-tech-strip span { font-family: var(--font-mono); font-size: 0.78rem; color: var(--muted); text-transform: uppercase; letter-spacing: 0.08em; }
.tech-pill {
    padding: 6px 16px; background: var(--bg-card); border: 1px solid var(--border);
    border-radius: 6px; font-family: var(--font-mono); font-size: 0.8rem; color: var(--text);
    white-space: nowrap;
}

/* =====================================================
   STATS
   ===================================================== */
.stats-section { background: var(--bg-2); border-top: 1px solid var(--border-2); border-bottom: 1px solid var(--border-2); }
.stat-item { text-align: center; padding: 40px 20px; }
.stat-number { font-family: var(--font-display); font-size: clamp(2rem, 4vw, 3.2rem); font-weight: 800; color: var(--cyan); display: block; line-height: 1; }
.stat-label { font-size: 0.85rem; color: var(--muted); text-transform: uppercase; letter-spacing: 0.06em; margin-top: 8px; display: block; }

/* =====================================================
   SERVICE CARDS
   ===================================================== */
.service-card {
    background: var(--bg-card);
    border: 1px solid var(--border-2);
    border-radius: var(--radius-lg);
    padding: 40px;
    transition: all var(--transition);
    position: relative; overflow: hidden;
}
.service-card::after {
    content: ''; position: absolute;
    top: 0; left: 0; right: 0; height: 2px;
    background: linear-gradient(90deg, transparent, var(--cyan), transparent);
    opacity: 0; transition: opacity var(--transition);
}
.service-card:hover { border-color: rgba(0,212,255,0.2); transform: translateY(-6px); box-shadow: 0 32px 64px rgba(0,0,0,0.4), 0 0 0 1px rgba(0,212,255,0.05); }
.service-card:hover::after { opacity: 1; }
.service-num { font-family: var(--font-mono); font-size: 0.75rem; color: var(--border); margin-bottom: 20px; }
.service-icon { font-size: 2rem; margin-bottom: 20px; }
.service-highlights { list-style: none; margin-top: 20px; display: flex; flex-direction: column; gap: 8px; }
.service-highlights li { font-size: 0.88rem; color: var(--muted); display: flex; align-items: center; gap: 8px; }
.service-highlights li::before { content: '▸'; color: var(--cyan); font-size: 0.7rem; flex-shrink: 0; }

/* =====================================================
   WHY US
   ===================================================== */
.why-us-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 2px; background: var(--border-2); border: 1px solid var(--border-2); border-radius: var(--radius-lg); overflow: hidden; }
.why-item { background: var(--bg-card); padding: 40px; transition: background var(--transition); }
.why-item:hover { background: var(--bg-card2); }
.why-item h3 { margin-bottom: 12px; font-size: 1.2rem; }
.why-item p { font-size: 0.9rem; color: var(--muted); max-width: none; }
.why-num { font-family: var(--font-mono); font-size: 2rem; color: var(--border); font-weight: 400; display: block; margin-bottom: 16px; }
@media (max-width: 700px) { .why-us-grid { grid-template-columns: 1fr; } }

/* =====================================================
   TRAINING CARDS
   ===================================================== */
.training-card {
    background: var(--bg-card); border: 1px solid var(--border-2);
    border-radius: var(--radius-lg); overflow: hidden;
    transition: all var(--transition);
}
.training-card:hover { border-color: rgba(0,212,255,0.2); transform: translateY(-4px); }
.training-card-header {
    padding: 36px 36px 28px;
    background: linear-gradient(135deg, var(--bg-card2), var(--bg-card));
    border-bottom: 1px solid var(--border-2);
}
.training-card-body { padding: 32px 36px; }
.training-meta { display: flex; gap: 20px; flex-wrap: wrap; margin-bottom: 24px; }
.meta-item { display: flex; align-items: center; gap: 8px; }
.meta-label { font-size: 0.75rem; text-transform: uppercase; letter-spacing: 0.06em; color: var(--muted); }
.meta-value { font-weight: 600; color: var(--white); font-size: 0.9rem; }
.modules-list { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 16px; }
.module-tag {
    padding: 4px 12px; background: var(--bg); border: 1px solid var(--border-2);
    border-radius: 6px; font-size: 0.8rem; color: var(--muted);
}

/* =====================================================
   CASE STUDY CARDS
   ===================================================== */
.cs-card {
    background: var(--bg-card); border: 1px solid var(--border-2);
    border-radius: var(--radius-lg); overflow: hidden; transition: all var(--transition);
}
.cs-card:hover { border-color: rgba(0,212,255,0.2); transform: translateY(-4px); box-shadow: var(--shadow); }
.cs-industry {
    padding: 16px 28px;
    background: var(--cyan-dim); border-bottom: 1px solid var(--border);
    font-family: var(--font-mono); font-size: 0.78rem; color: var(--cyan); text-transform: uppercase; letter-spacing: 0.06em;
}
.cs-body { padding: 32px; }
.cs-section { margin-bottom: 20px; }
.cs-section h4 { font-size: 0.7rem; text-transform: uppercase; letter-spacing: 0.1em; color: var(--muted); margin-bottom: 8px; font-family: var(--font-mono); }
.cs-section p { font-size: 0.9rem; color: var(--text); max-width: none; }
.cs-results { display: flex; flex-direction: column; gap: 8px; margin-top: 24px; padding-top: 24px; border-top: 1px solid var(--border-2); }
.cs-result { display: flex; align-items: center; gap: 10px; font-size: 0.88rem; }
.cs-result::before { content: '✓'; color: var(--cyan); font-weight: 700; flex-shrink: 0; }

/* =====================================================
   ABOUT VALUES
   ===================================================== */
.values-grid { display: grid; grid-template-columns: repeat(2,1fr); gap: 2px; background: var(--border-2); border-radius: var(--radius-lg); overflow: hidden; border: 1px solid var(--border-2); }
.value-item { background: var(--bg-card); padding: 40px; }
.value-item h3 { font-size: 1.1rem; margin-bottom: 10px; }
.value-item p { font-size: 0.9rem; color: var(--muted); max-width: none; }
@media (max-width: 700px) { .values-grid { grid-template-columns: 1fr; } }

/* =====================================================
   CONTACT
   ===================================================== */
.contact-grid { display: grid; grid-template-columns: 1fr 1.5fr; gap: 60px; align-items: start; }
.contact-info-item { display: flex; gap: 16px; align-items: flex-start; margin-bottom: 32px; }
.contact-info-icon { width: 44px; height: 44px; border-radius: 10px; background: var(--cyan-dim); border: 1px solid var(--border); display: grid; place-items: center; font-size: 1.1rem; flex-shrink: 0; }
.contact-info-label { font-size: 0.75rem; text-transform: uppercase; letter-spacing: 0.08em; color: var(--muted); margin-bottom: 4px; }
.contact-info-value { color: var(--white); font-weight: 500; }

.contact-form { background: var(--bg-card); border: 1px solid var(--border-2); border-radius: var(--radius-lg); padding: 44px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form-group { margin-bottom: 20px; }
.form-group label { display: block; font-size: 0.82rem; text-transform: uppercase; letter-spacing: 0.06em; color: var(--muted); margin-bottom: 8px; }
.form-group input, .form-group select, .form-group textarea {
    width: 100%; padding: 14px 18px;
    background: var(--bg); border: 1px solid var(--border-2);
    border-radius: 10px; color: var(--white); font-family: var(--font-body); font-size: 0.95rem;
    transition: border-color var(--transition); outline: none; resize: vertical;
}
.form-group input:focus, .form-group textarea:focus, .form-group select:focus { border-color: var(--cyan); box-shadow: 0 0 0 3px var(--cyan-dim); }
.form-group textarea { min-height: 130px; }
.form-success { background: rgba(0,212,255,0.1); border: 1px solid var(--border); border-radius: 10px; padding: 16px 20px; color: var(--cyan); font-size: 0.95rem; display: none; }
@media (max-width: 900px) { .contact-grid { grid-template-columns: 1fr; } .form-row { grid-template-columns: 1fr; } }

/* =====================================================
   PAGE HERO (inner pages)
   ===================================================== */
.page-hero {
    padding: 160px 0 80px;
    background: linear-gradient(180deg, var(--bg-2) 0%, var(--bg) 100%);
    border-bottom: 1px solid var(--border-2);
    position: relative; overflow: hidden;
}
.page-hero-bg {
    position: absolute; inset: 0;
    background-image:
        linear-gradient(rgba(0,212,255,0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0,212,255,0.03) 1px, transparent 1px);
    background-size: 48px 48px;
}
.page-hero-content { position: relative; z-index: 1; }
.page-hero h1 { max-width: 700px; margin-bottom: 16px; }
.page-hero p { font-size: 1.1rem; color: var(--muted); max-width: 600px; }

/* =====================================================
   FOOTER
   ===================================================== */
.site-footer { background: var(--bg-2); border-top: 1px solid var(--border-2); }
.footer-top { max-width: var(--max-w); margin: 0 auto; padding: 72px 24px 60px; display: grid; grid-template-columns: 300px 1fr; gap: 80px; }
.footer-tagline { font-size: 0.9rem; color: var(--muted); margin-top: 16px; margin-bottom: 20px; max-width: 240px; }
.footer-badges { display: flex; flex-wrap: wrap; gap: 8px; }
.badge { padding: 4px 12px; border: 1px solid var(--border); border-radius: 6px; font-size: 0.75rem; color: var(--muted); font-family: var(--font-mono); }

.footer-nav { display: grid; grid-template-columns: repeat(4,1fr); gap: 32px; }
.footer-col h4 { font-size: 0.75rem; text-transform: uppercase; letter-spacing: 0.1em; color: var(--muted); margin-bottom: 16px; font-family: var(--font-mono); }
.footer-col ul { list-style: none; }
.footer-col ul li { margin-bottom: 10px; }
.footer-col ul li a { color: var(--muted); font-size: 0.9rem; transition: color var(--transition); }
.footer-col ul li a:hover { color: var(--white); }
.footer-col ul li span { color: var(--muted); font-size: 0.9rem; }

.footer-bottom { border-top: 1px solid var(--border-2); max-width: var(--max-w); margin: 0 auto; padding: 24px; display: flex; justify-content: space-between; align-items: center; }
.footer-bottom p { font-size: 0.82rem; color: var(--muted); }
.footer-domain { font-family: var(--font-mono); }

@media (max-width: 900px) {
    .footer-top { grid-template-columns: 1fr; gap: 40px; }
    .footer-nav { grid-template-columns: repeat(2,1fr); }
    .footer-bottom { flex-direction: column; gap: 8px; text-align: center; }
}
@media (max-width: 600px) { .footer-nav { grid-template-columns: 1fr 1fr; } }

/* =====================================================
   ANIMATIONS
   ===================================================== */
.animate { opacity: 0; transform: translateY(24px); transition: opacity 0.6s ease, transform 0.6s ease; }
.animate.visible { opacity: 1; transform: translateY(0); }
.animate-delay-1 { transition-delay: 0.1s; }
.animate-delay-2 { transition-delay: 0.2s; }
.animate-delay-3 { transition-delay: 0.3s; }
.animate-delay-4 { transition-delay: 0.4s; }

/* =====================================================
   UTILITY
   ===================================================== */
.text-cyan  { color: var(--cyan); }
.text-muted { color: var(--muted); }
.text-center { text-align: center; }
.text-center p { margin: 0 auto; }
.divider { height: 1px; background: var(--border-2); margin: 0; }
.mt-4 { margin-top: 16px; }
.mt-8 { margin-top: 32px; }
.mt-12 { margin-top: 48px; }
.mb-4 { margin-bottom: 16px; }
.mb-8 { margin-bottom: 32px; }

/* CTA Banner */
.cta-banner {
    background: linear-gradient(135deg, var(--bg-card), var(--bg-2));
    border: 1px solid var(--border); border-radius: var(--radius-lg);
    padding: 64px; text-align: center;
    position: relative; overflow: hidden;
}
.cta-banner::before {
    content: ''; position: absolute; inset: 0;
    background: radial-gradient(ellipse at 50% -20%, rgba(0,212,255,0.08), transparent 60%);
}
.cta-banner > * { position: relative; z-index: 1; }
.cta-banner h2 { margin-bottom: 16px; }
.cta-banner p { color: var(--muted); margin: 0 auto 32px; }