@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&display=swap');
@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@300;400;500;600;700;800;900&display=swap');

*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
a { text-decoration: none; color: inherit; }

/* ══ TOKENS ══ */
:root {
    --bg:      #0b0d17;
    --bg2:     #13162b;
    --bg-gray: #1a1d36;
    --text:    #ffffff;
    --text2:   #9ca3af;
    --text3:   #6b7280;
    --accent:  #3b82f6;
    --accent-glow: rgba(59, 130, 246, 0.5);
    --accent2: #8b5cf6;
    --border:  rgba(255, 255, 255, 0.1);
    --border2: rgba(255, 255, 255, 0.2);
    --ease:    cubic-bezier(.22,1,.36,1);
    --font:    'Outfit', 'Inter', system-ui, sans-serif;
    --glass-bg: rgba(19, 22, 43, 0.65);
    --glass-border: rgba(255, 255, 255, 0.08);
}

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

/* ══ BACKGROUND EFFECTS ══ */
body::before {
    content: ''; position: fixed; top: -50%; left: -50%; width: 200%; height: 200%;
    background: radial-gradient(circle at 50% 50%, rgba(59, 130, 246, 0.05) 0%, transparent 60%),
                radial-gradient(circle at 80% 20%, rgba(139, 92, 246, 0.05) 0%, transparent 50%);
    z-index: -1; pointer-events: none;
}

/* ══ NAV ══ */
.nav {
    position: fixed; top: 0; left: 0; right: 0; z-index: 100;
    padding: 0 48px;
    transition: background .4s, backdrop-filter .4s, border-color .4s;
    border-bottom: 1px solid transparent;
}
.nav.scrolled {
    background: var(--glass-bg);
    backdrop-filter: blur(16px);
    border-color: var(--glass-border);
}
.nav-inner {
    max-width: 1160px; margin: 0 auto;
    display: flex; align-items: center; gap: 40px; height: 76px;
}
.nav-logo {
    font-weight: 800; font-size: 1.5rem; letter-spacing: -.03em;
    margin-right: auto; color: var(--text);
    display: flex; align-items: center; gap: 8px;
}
.nav-logo span:first-child {
    background: linear-gradient(135deg, #fff, #9ca3af);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}
.nav-links { display: flex; gap: 36px; }
.nav-link {
    font-size: 0.95rem; font-weight: 500; color: var(--text2);
    transition: color .3s, transform .3s;
    position: relative;
}
.nav-link::after {
    content: ''; position: absolute; bottom: -4px; left: 0; width: 0; height: 2px;
    background: var(--accent); transition: width .3s var(--ease);
}
.nav-link:hover { color: #fff; transform: translateY(-1px); }
.nav-link:hover::after { width: 100%; }

.nav-right { display: flex; align-items: center; gap: 24px; }
.nav-badge {
    display: flex; align-items: center; gap: 8px;
    font-size: .8rem; font-weight: 600; color: #34d399;
    background: rgba(16, 185, 129, 0.1);
    border: 1px solid rgba(16, 185, 129, 0.2);
    padding: 6px 16px; border-radius: 100px;
    box-shadow: 0 0 12px rgba(16, 185, 129, 0.1);
}
.badge-dot {
    width: 6px; height: 6px; border-radius: 50%;
    background: #34d399;
    animation: pulse 2s ease-in-out infinite;
    box-shadow: 0 0 8px #34d399;
}
@keyframes pulse { 0%,100%{opacity:1; transform: scale(1);} 50%{opacity:.5; transform: scale(1.2);} }

.lang-btn {
    display: flex; align-items: center; gap: 6px;
    font-size: .85rem; font-weight: 600;
    color: var(--text2); background: rgba(255,255,255,0.03);
    border: 1px solid var(--border); border-radius: 8px;
    padding: 8px 14px; cursor: pointer;
    transition: all .3s var(--ease);
}
.lang-btn:hover { border-color: rgba(255,255,255,0.3); color: #fff; background: rgba(255,255,255,0.08); transform: translateY(-1px); }

/* ══ HERO ══ */
.hero {
    position: relative;
    min-height: 100vh; display: flex; align-items: center; justify-content: center;
    padding: 160px 48px 100px; text-align: center;
    overflow: hidden;
}
.hero-glow {
    position: absolute; width: 800px; height: 800px;
    background: radial-gradient(circle, var(--accent-glow) 0%, transparent 60%);
    top: 50%; left: 50%; transform: translate(-50%, -50%);
    pointer-events: none; z-index: 0; mix-blend-mode: screen;
    filter: blur(80px);
}
.hero-inner {
    position: relative; z-index: 1;
    max-width: 900px; margin: 0 auto;
    display: flex; flex-direction: column; align-items: center;
}
.hero-pill {
    font-size: .8rem; font-weight: 600; letter-spacing: .1em;
    text-transform: uppercase; color: #fff;
    background: linear-gradient(90deg, rgba(59,130,246,0.2), rgba(139,92,246,0.2));
    border: 1px solid rgba(255,255,255,0.1);
    padding: 10px 24px; border-radius: 100px;
    margin-bottom: 40px;
    box-shadow: 0 4px 20px rgba(59,130,246,0.15);
    opacity: 0; animation: fadeUp .8s var(--ease) .1s both;
}
.hero-h1 {
    font-size: clamp(3.5rem, 8vw, 7rem);
    font-weight: 900; line-height: 1; letter-spacing: -.03em;
    margin-bottom: 32px;
}
.h1-row { display: block; opacity: 0; transform: translateY(30px); animation: fadeUp .8s var(--ease) both; }
.h1-row:nth-child(1) { animation-delay: .2s; }
.h1-row:nth-child(2) { animation-delay: .3s; }
.h1-row:nth-child(3) { animation-delay: .4s; }
.h1-color { 
    background: linear-gradient(135deg, #3b82f6, #8b5cf6, #3b82f6);
    background-size: 200% 200%;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    animation: gradientShift 6s ease infinite, fadeUp .8s var(--ease) .3s both;
}
@keyframes gradientShift { 0% { background-position: 0% 50%; } 50% { background-position: 100% 50%; } 100% { background-position: 0% 50%; } }

.hero-lead {
    font-size: 1.35rem; color: var(--text2); line-height: 1.8;
    max-width: 650px; margin-bottom: 56px; font-weight: 300;
    opacity: 0; animation: fadeUp .8s var(--ease) .5s both;
}
.hero-btns {
    display: flex; gap: 20px;
    opacity: 0; animation: fadeUp .8s var(--ease) .6s both;
}
.btn {
    display: inline-flex; align-items: center; gap: 12px;
    padding: 16px 36px; border-radius: 14px;
    font-weight: 600; font-size: 1.05rem;
    transition: all .3s var(--ease);
    position: relative; overflow: hidden;
}
.btn::before {
    content: ''; position: absolute; top: 0; left: -100%; width: 100%; height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
    transition: left .5s;
}
.btn:hover::before { left: 100%; }
.btn-dark {
    background: linear-gradient(135deg, #3b82f6, #2563eb); color: white;
    box-shadow: 0 10px 30px rgba(37,99,235,0.3); border: 1px solid rgba(255,255,255,0.1);
}
.btn-dark:hover { transform: translateY(-3px); box-shadow: 0 15px 40px rgba(37,99,235,0.4); }
.btn-light {
    background: rgba(255,255,255,0.05); color: white; border: 1px solid rgba(255,255,255,0.1);
    backdrop-filter: blur(10px);
}
.btn-light:hover { background: rgba(255,255,255,0.1); border-color: rgba(255,255,255,0.3); transform: translateY(-3px); }

.scroll-cue {
    position: absolute; bottom: 50px; left: 50%; transform: translateX(-50%);
    display: flex; flex-direction: column; align-items: center; gap: 16px;
    font-size: .8rem; font-weight: 600; color: var(--text3); letter-spacing: .05em;
    opacity: 0; animation: fadeUp .8s var(--ease) 1s both;
}
@media (max-height: 750px) {
    .scroll-cue { display: none; }
}
.sc-bar {
    width: 2px; height: 50px; background: rgba(255,255,255,0.1); border-radius: 2px;
    overflow: hidden; position: relative;
}
.sc-bar::after {
    content: ''; position: absolute; top: 0; left: 0; right: 0; height: 50%;
    background: var(--accent); animation: slideDown 2s infinite ease-in-out;
    box-shadow: 0 0 10px var(--accent);
}
@keyframes slideDown { 0% { transform: translateY(-100%); } 100% { transform: translateY(200%); } }

/* ══ SECTIONS ══ */
.section { padding: 140px 48px; }
.section-gray { background: var(--bg2); position: relative; }
.section-gray::before {
    content: ''; position: absolute; top: 0; left: 0; right: 0; height: 1px;
    background: linear-gradient(90deg, transparent, var(--border2), transparent);
}
.container { max-width: 1100px; margin: 0 auto; }
.kicker {
    font-size: .85rem; font-weight: 700; letter-spacing: .15em;
    text-transform: uppercase; color: var(--accent); margin-bottom: 24px;
    display: flex; align-items: center; gap: 12px;
}
.kicker::before {
    content: ''; width: 40px; height: 2px; background: var(--accent); display: block;
}
.heading {
    font-size: clamp(2.5rem, 6vw, 3.5rem); font-weight: 800; line-height: 1.1;
    letter-spacing: -.03em; margin-bottom: 40px;
}
.heading em { font-style: normal; color: var(--accent); background: linear-gradient(135deg, #3b82f6, #8b5cf6); -webkit-background-clip: text; -webkit-text-fill-color: transparent; }

/* ══ ABOUT ══ */
.about-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 80px; align-items: start; }
.about-copy p { font-size: 1.15rem; color: var(--text2); line-height: 1.9; margin-bottom: 24px; font-weight: 300; }
.about-vision { display: flex; flex-direction: column; gap: 48px; }
.vision-item { 
    background: rgba(255,255,255,0.02); border: 1px solid rgba(255,255,255,0.05);
    padding: 32px; border-radius: 20px; transition: all .4s var(--ease);
    position: relative; overflow: hidden;
}
.vision-item::before {
    content: ''; position: absolute; top: 0; left: 0; width: 4px; height: 100%;
    background: var(--text3); transition: background .4s var(--ease);
}
.vision-item:hover { transform: translateY(-5px); border-color: rgba(255,255,255,0.15); background: rgba(255,255,255,0.04); box-shadow: 0 20px 40px rgba(0,0,0,0.3); }
.vision-item:hover::before { background: var(--accent); }
.vi-num { font-size: .8rem; font-weight: 700; color: var(--accent); letter-spacing: .1em; text-transform: uppercase; margin-bottom: 16px; }
.vi-title { font-size: 1.5rem; font-weight: 700; color: #fff; margin-bottom: 12px; }
.vi-desc { font-size: 1rem; color: var(--text2); line-height: 1.7; font-weight: 300; }

/* ══ PROJECTS ══ */
.projects-header { max-width: 650px; margin-bottom: 60px; }
.projects-sub { font-size: 1.15rem; color: var(--text2); line-height: 1.7; font-weight: 300; }
.projects-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); gap: 32px; }
.proj-card {
    background: var(--glass-bg); border: 1px solid var(--glass-border);
    border-radius: 24px; padding: 40px; backdrop-filter: blur(10px);
    transition: all .4s var(--ease); position: relative; overflow: hidden;
}
.proj-card::after {
    content: ''; position: absolute; top: -50%; left: -50%; width: 200%; height: 200%;
    background: radial-gradient(circle at 50% 50%, rgba(255,255,255,0.05), transparent 50%);
    opacity: 0; transition: opacity .4s var(--ease); pointer-events: none;
}
.proj-card:hover { border-color: rgba(255,255,255,0.2); transform: translateY(-8px); box-shadow: 0 30px 60px rgba(0,0,0,0.4); }
.proj-card:hover::after { opacity: 1; }
.proj-tag {
    font-size: .8rem; font-weight: 600; color: #fff;
    background: linear-gradient(135deg, rgba(59,130,246,0.3), rgba(139,92,246,0.3));
    border: 1px solid rgba(255,255,255,0.1);
    padding: 6px 16px; border-radius: 100px;
    display: inline-block; margin-bottom: 20px;
}
.proj-title { font-size: 1.35rem; font-weight: 700; color: #fff; margin-bottom: 16px; }
.proj-desc { font-size: 1.05rem; color: var(--text2); line-height: 1.7; font-weight: 300; }
.proj-link {
    display: inline-flex; align-items: center; gap: 10px;
    margin-top: 32px; font-size: 1rem; font-weight: 600;
    color: var(--accent); transition: all .3s var(--ease);
    padding: 10px 20px; border-radius: 12px; background: rgba(59,130,246,0.1);
}
.proj-link:hover { background: rgba(59,130,246,0.2); gap: 14px; color: #fff; }

/* ══ CONTACT ══ */
.contact-wrap { max-width: 900px; }
.contact-heading { margin-bottom: 20px; }
.contact-sub { font-size: 1.2rem; color: var(--text2); margin-bottom: 48px; font-weight: 300; }
.socials { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 16px; }
.soc {
    display: flex; align-items: center; gap: 20px;
    background: rgba(255,255,255,0.02); border: 1px solid rgba(255,255,255,0.05);
    padding: 20px 24px; border-radius: 16px;
    transition: all .3s var(--ease);
}
.soc:hover { border-color: rgba(255,255,255,0.2); background: rgba(255,255,255,0.05); transform: translateY(-3px); box-shadow: 0 15px 30px rgba(0,0,0,.2); }
.soc-ico {
    width: 48px; height: 48px; border-radius: 14px;
    display: flex; align-items: center; justify-content: center;
    background: rgba(255,255,255,0.05); color: #fff;
    transition: background .3s, transform .3s;
}
.soc:hover .soc-ico { background: var(--accent); transform: scale(1.1) rotate(5deg); }
.soc-txt { flex: 1; min-width: 0; }
.soc-txt strong { display: block; font-size: 1rem; font-weight: 600; margin-bottom: 4px; color: #fff; }
.soc-txt span { display: block; font-size: .85rem; color: var(--text2); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; font-weight: 300; }
.soc-arr { opacity: 0; transform: translateX(-10px); transition: all .3s var(--ease); color: #fff; }
.soc:hover .soc-arr { opacity: 1; transform: translateX(0); }

/* ══ FOOTER ══ */
.footer { border-top: 1px solid rgba(255,255,255,0.05); padding: 40px 48px; background: var(--bg); position: relative; overflow: hidden; }
.footer::before { content: ''; position: absolute; top: 0; left: 50%; transform: translateX(-50%); width: 300px; height: 1px; background: linear-gradient(90deg, transparent, var(--accent), transparent); opacity: 0.5; }
.footer-inner {
    max-width: 1100px; margin: 0 auto;
    display: flex; align-items: center; justify-content: space-between;
    font-size: .95rem; color: var(--text3); font-weight: 400;
}
.footer-logo { font-weight: 800; color: #fff; font-size: 1.2rem; display: flex; align-items: center; gap: 6px; }
.footer-logo span:first-child { background: linear-gradient(135deg, #fff, #9ca3af); -webkit-background-clip: text; -webkit-text-fill-color: transparent; }

/* ══ ANIMATIONS ══ */
@keyframes fadeUp {
    from { opacity: 0; transform: translateY(30px); }
    to { opacity: 1; transform: none; }
}
.reveal { opacity: 0; transform: translateY(40px); transition: all 1s var(--ease); }
.reveal.visible { opacity: 1; transform: none; }

/* ══ RESPONSIVE ══ */
@media(max-width:900px) {
    .about-grid { grid-template-columns: 1fr; gap: 50px; }
    .hero-h1 { font-size: 4rem; }
}
@media(max-width:600px) {
    .hero, .section { padding-left: 24px; padding-right: 24px; }
    .nav { padding: 0 24px; }
    .nav-links { display: none; }
    .hero-btns { flex-direction: column; width: 100%; }
    .btn { justify-content: center; width: 100%; }
    .footer-inner { flex-direction: column; gap: 20px; text-align: center; }
}

/* ══ MODAL ══ */
.modal {
    position: fixed; top: 0; left: 0; right: 0; bottom: 0; z-index: 1000;
    display: flex; align-items: center; justify-content: center;
    opacity: 0; pointer-events: none; transition: opacity .5s var(--ease);
}
.modal.active { opacity: 1; pointer-events: all; }
.modal-bg {
    position: absolute; top: 0; left: 0; right: 0; bottom: 0;
    background: rgba(11, 13, 23, 0.85); backdrop-filter: blur(12px);
}
.modal-content {
    position: relative; z-index: 1;
    background: var(--bg2); width: 90%; max-width: 650px;
    border-radius: 24px; border: 1px solid rgba(255,255,255,0.1);
    box-shadow: 0 30px 60px rgba(0,0,0,0.5), 0 0 40px rgba(59,130,246,0.1);
    transform: translateY(30px) scale(0.95); transition: all .5s var(--ease);
    overflow: hidden;
}
.modal.active .modal-content { transform: none; }
.modal-close {
    position: absolute; top: 24px; right: 24px;
    background: rgba(255,255,255,0.05); border: 1px solid rgba(255,255,255,0.1); color: #fff;
    cursor: pointer; padding: 10px; border-radius: 50%;
    transition: all .3s; z-index: 2;
}
.modal-close:hover { background: rgba(255,255,255,0.1); transform: rotate(90deg); }
.modal-header { padding: 36px 40px 24px; border-bottom: 1px solid rgba(255,255,255,0.05); background: rgba(0,0,0,0.2); }
.modal-title { font-size: 1.5rem; font-weight: 700; color: #fff; }
.modal-body { padding: 40px; }
.demo-view { padding: 10px 0; }

/* ── RAG Chat UI ── */
.demo-chat { display: flex; flex-direction: column; gap: 20px; background: rgba(0,0,0,0.3); padding: 24px; border-radius: 16px; border: 1px solid rgba(255,255,255,0.05); }
.chat-msg { padding: 16px 20px; border-radius: 16px; font-size: 1.05rem; line-height: 1.6; max-width: 85%; font-weight: 300; }
.chat-msg.user { background: linear-gradient(135deg, #3b82f6, #2563eb); color: white; align-self: flex-end; border-bottom-right-radius: 4px; box-shadow: 0 10px 20px rgba(37,99,235,0.2); }
.chat-msg.ai { background: rgba(255,255,255,0.05); color: #fff; align-self: flex-start; border-bottom-left-radius: 4px; border: 1px solid rgba(255,255,255,0.1); width: 100%; }
.rag-step { font-size: .9rem; color: var(--text2); display: flex; align-items: center; gap: 10px; margin-bottom: 12px; }
.spinner-small { display: inline-block; width: 14px; height: 14px; border: 2px solid var(--accent); border-top-color: transparent; border-radius: 50%; animation: spin .8s linear infinite; }
.ai-source { font-size: .8rem; background: rgba(255,255,255,0.1); padding: 6px 12px; border-radius: 8px; color: var(--text2); display: inline-block; }

/* ── Agent Flow UI ── */
.agent-grid { display: flex; flex-direction: column; align-items: center; gap: 24px; margin-bottom: 32px; }
.agent-branches { display: flex; gap: 20px; width: 100%; justify-content: space-between; position: relative; }
.agent-branches::before { content: ''; position: absolute; top: -12px; left: 16%; right: 16%; height: 2px; background: rgba(255,255,255,0.1); z-index: 0; }
.agent-node { background: rgba(255,255,255,0.03); border: 1px solid rgba(255,255,255,0.1); padding: 14px; border-radius: 12px; font-size: .85rem; font-weight: 600; text-align: center; flex: 1; transition: all .4s; position: relative; z-index: 1; color: var(--text2); }
.agent-node.supervisor { width: 180px; flex: none; border-color: rgba(59,130,246,0.5); background: rgba(59,130,246,0.1); color: #fff; box-shadow: 0 0 20px rgba(59,130,246,0.2); }
.agent-node.active { border-color: #3b82f6; background: rgba(59,130,246,0.1); box-shadow: 0 0 0 4px rgba(59,130,246,.2); color: #fff; transform: translateY(-3px); }
.agent-node.done { border-color: #10b981; background: rgba(16,185,129,.1); color: #10b981; }

.terminal { background: #0f172a; border-radius: 12px; overflow: hidden; font-family: monospace; font-size: .9rem; border: 1px solid rgba(255,255,255,0.1); box-shadow: inset 0 0 20px rgba(0,0,0,0.5); }
.term-header { background: rgba(255,255,255,0.05); padding: 12px 20px; color: #9ca3af; font-size: .85rem; font-weight: bold; border-bottom: 1px solid rgba(255,255,255,0.05); }
.term-body { padding: 20px; color: #34d399; min-height: 180px; max-height: 180px; overflow-y: auto; }
.term-line { margin-bottom: 8px; opacity: 0; animation: fadeUp .3s forwards; }
.term-time { color: #6b7280; margin-right: 12px; }

/* ── n8n Canvas UI ── */
.n8n-toolbar { text-align: center; margin-bottom: 24px; }
.n8n-btn { background: linear-gradient(135deg, #f97316, #ea580c); color: white; border: none; padding: 10px 24px; border-radius: 10px; font-weight: bold; cursor: pointer; transition: all .3s; box-shadow: 0 10px 20px rgba(249,115,22,0.3); font-size: 1rem; }
.n8n-btn:hover { transform: translateY(-2px) scale(1.05); box-shadow: 0 15px 25px rgba(249,115,22,0.4); }
.n8n-canvas { display: flex; align-items: center; justify-content: space-between; background: rgba(0,0,0,0.2); padding: 48px 24px; border-radius: 16px; border: 1px dashed rgba(255,255,255,0.15); margin-bottom: 20px; }
.n8n-node { background: var(--bg); border: 2px solid rgba(255,255,255,0.1); padding: 18px; border-radius: 12px; font-weight: 700; text-align: center; font-size: .95rem; box-shadow: 0 10px 20px rgba(0,0,0,.3); transition: all .4s; position: relative; z-index: 2; color: #fff; }
.n8n-node.pulse { animation: nPulse 1s infinite; border-color: #f97316; background: rgba(249,115,22,0.1); }
@keyframes nPulse { 0% { box-shadow: 0 0 0 0 rgba(249,115,22,.4); } 70% { box-shadow: 0 0 0 15px rgba(249,115,22,0); } 100% { box-shadow: 0 0 0 0 rgba(249,115,22,0); } }

.n8n-wire { flex: 1; height: 2px; background: rgba(255,255,255,0.1); position: relative; z-index: 1; margin: 0 -4px; overflow: hidden; }
.wire-dot { position: absolute; top: -3px; left: -10px; width: 8px; height: 8px; background: #f97316; border-radius: 50%; display: none; box-shadow: 0 0 10px #f97316; }
.wire-dot.move { display: block; animation: moveDot 1s linear forwards; }
@keyframes moveDot { to { left: 100%; } }

.n8n-payload { background: #0f172a; color: #34d399; padding: 20px; border-radius: 12px; font-family: monospace; font-size: .9rem; overflow-x: auto; animation: fadeUp .5s forwards; border: 1px solid rgba(255,255,255,0.1); }
.n8n-payload pre { margin: 0; }