/* css/about.css */
* { margin: 0; padding: 0; box-sizing: border-box; }
body { font-family: 'Inter', sans-serif; background: #020617; color: #f1f5f9; line-height: 1.5; overflow-x: hidden; }
.network-bg { position: fixed; top: 0; left: 0; width: 100%; height: 100%; z-index: 0; opacity: 0.1; pointer-events: none; }
.network-bg svg { width: 100%; height: 100%; }
@keyframes pulseNode { 0%, 100% { opacity: 0.3; transform: scale(1); } 50% { opacity: 0.9; transform: scale(1.3); } }
@keyframes floatNode1 { 0% { transform: translate(0px, 0px); } 50% { transform: translate(10px, -15px); } 100% { transform: translate(-5px, 10px); } }
@keyframes floatNode2 { 0% { transform: translate(0px, 0px); } 50% { transform: translate(-12px, -8px); } 100% { transform: translate(8px, 12px); } }
@keyframes dashMove { to { stroke-dashoffset: -100; } }
.network-line { animation: dashMove 20s linear infinite; }
.node-pulse { animation: pulseNode 3s ease-in-out infinite; transform-origin: center; }
.navbar { display: flex; justify-content: space-between; align-items: center; padding: 14px 24px; background: rgba(2,6,23,0.96); backdrop-filter: blur(12px); border-bottom: 1px solid rgba(56,189,248,0.4); position: sticky; top: 0; z-index: 1000; gap: 16px; }
.logo { font-size: 1.5rem; font-weight: 800; background: linear-gradient(135deg, #38bdf8, #22c55e); -webkit-background-clip: text; background-clip: text; color: transparent; display: flex; align-items: center; gap: 8px; }
.logo i { background: none; color: #38bdf8; }
.nav-links { display: flex; gap: 1.5rem; align-items: center; }
.nav-links a { color: #cbd5e6; text-decoration: none; font-weight: 500; font-size: 0.9rem; white-space: nowrap; transition: 0.2s; }
.nav-links a:hover, .nav-links a.active { color: #38bdf8; }
.btn-login { background: linear-gradient(95deg, #22c55e, #16a34a); padding: 0.5rem 1.2rem; border-radius: 2rem; color: white; font-weight: 600; font-size: 0.85rem; text-decoration: none; transition: 0.2s; }
.btn-login:hover { transform: translateY(-2px); box-shadow: 0 6px 14px rgba(34,197,94,0.3); }
.hamburger { display: none; flex-direction: column; justify-content: space-between; width: 28px; height: 20px; cursor: pointer; z-index: 1001; }
.hamburger span { display: block; height: 2.5px; width: 100%; background-color: #38bdf8; border-radius: 3px; }
.mobile-menu { position: fixed; top: 0; right: -100%; width: 75%; max-width: 300px; height: 100vh; background: rgba(2,6,23,0.98); backdrop-filter: blur(20px); z-index: 1100; padding: 70px 24px 40px; display: flex; flex-direction: column; gap: 20px; transition: right 0.35s; border-left: 1px solid rgba(56,189,248,0.3); }
.mobile-menu.active { right: 0; }
.mobile-menu a { color: #e2e8f0; text-decoration: none; font-size: 1rem; font-weight: 500; padding: 10px 0; border-bottom: 1px solid rgba(56,189,248,0.2); display: flex; align-items: center; gap: 12px; transition: 0.2s; }
.mobile-menu a i { width: 24px; }
.mobile-menu a:hover, .mobile-menu a.active { color: #38bdf8; padding-left: 6px; }
.mobile-menu .btn-login-mobile { background: linear-gradient(95deg, #22c55e, #16a34a); text-align: center; justify-content: center; border-radius: 40px; padding: 12px; margin-top: 20px; border-bottom: none; font-weight: 600; font-size: 0.9rem; cursor: pointer; }
.close-menu { position: absolute; top: 20px; right: 20px; font-size: 24px; cursor: pointer; color: #38bdf8; background: rgba(255,255,255,0.08); width: 36px; height: 36px; border-radius: 50%; display: flex; align-items: center; justify-content: center; }
.overlay-blur { position: fixed; top: 0; left: 0; width: 100%; height: 100%; background: rgba(0,0,0,0.5); backdrop-filter: blur(3px); z-index: 1050; display: none; }
.overlay-blur.active { display: block; }
.scroll-buttons { position: fixed; right: 20px; bottom: 30px; z-index: 1000; display: flex; flex-direction: column; gap: 10px; }
.scroll-btn { padding: 12px 16px; border: none; border-radius: 40px; background: linear-gradient(145deg, #22c55e, #15803d); color: white; cursor: pointer; font-size: 18px; box-shadow: 0 4px 12px rgba(0,0,0,0.3); transition: 0.2s; text-decoration: none; display: inline-flex; align-items: center; justify-content: center; }
.scroll-btn:hover { transform: scale(1.05); }
.container { max-width: 1300px; margin: 0 auto; padding: 0 24px; position: relative; z-index: 2; }
.hero { text-align: center; padding: 4rem 1rem 3rem; background: radial-gradient(circle at 20% 30%, #0ea5e920, transparent 60%); }
.hero h1 { font-size: 2.8rem; font-weight: 800; background: linear-gradient(145deg, white, #38bdf8); -webkit-background-clip: text; background-clip: text; color: transparent; margin-bottom: 1rem; }
.hero p { max-width: 800px; margin: 0 auto; color: #94a3b8; font-size: 1.05rem; }
.section { padding: 4rem 0; border-bottom: 1px solid rgba(56,189,248,0.1); }
.section h2 { text-align: center; font-size: 2rem; margin-bottom: 2rem; color: #38bdf8; }
.stats-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 1.5rem; margin: 2rem 0; }
.stat-card { background: rgba(15,23,42,0.7); backdrop-filter: blur(6px); border: 1px solid rgba(56,189,248,0.25); border-radius: 1.5rem; padding: 1.5rem; text-align: center; transition: all 0.3s ease; }
.stat-card:hover { transform: translateY(-6px); border-color: #38bdf8; background: rgba(15,23,42,0.9); }
.stat-card h2 { font-size: 2.5rem; font-weight: 800; background: linear-gradient(135deg, #22c55e, #38bdf8); -webkit-background-clip: text; background-clip: text; color: transparent; margin-bottom: 0.5rem; }
.stat-card p { color: #94a3b8; font-weight: 500; }
.features-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(270px, 1fr)); gap: 2rem; }
.feature { background: rgba(15,23,42,0.7); border: 1px solid rgba(56,189,248,0.2); border-radius: 1.5rem; padding: 2rem; transition: all 0.25s; }
.feature:hover { transform: translateY(-5px); border-color: #38bdf8; background: rgba(15,23,42,0.9); }
.feature i { font-size: 2.2rem; color: #22c55e; margin-bottom: 1rem; }
.feature h3 { color: #38bdf8; margin-bottom: 0.8rem; font-size: 1.3rem; }
.timeline { display: flex; flex-direction: column; gap: 1.5rem; max-width: 800px; margin: 0 auto; }
.timeline-item { background: rgba(15,23,42,0.7); border-left: 4px solid #22c55e; padding: 1.5rem 2rem; border-radius: 1rem; transition: 0.2s; }
.timeline-item:hover { background: rgba(15,23,42,0.9); transform: translateX(5px); }
.timeline-item h3 { color: #38bdf8; margin-bottom: 0.5rem; display: flex; align-items: center; gap: 8px; }
.team-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); gap: 2rem; margin-top: 2rem; }
.team-card { background: rgba(15,23,42,0.7); border-radius: 1.5rem; padding: 1.8rem; text-align: center; border: 1px solid rgba(56,189,248,0.2); transition: 0.25s; }
.team-card:hover { transform: translateY(-6px); border-color: #38bdf8; }
.team-avatar { width: 100px; height: 100px; background: linear-gradient(145deg, #1e293b, #0f172a); border-radius: 50%; display: flex; align-items: center; justify-content: center; margin: 0 auto 1rem; border: 2px solid #38bdf8; }
.team-avatar i { font-size: 3rem; color: #22c55e; }
.team-card h3 { margin-bottom: 0.3rem; }
.team-card .role { color: #22c55e; font-size: 0.85rem; font-weight: 600; margin-bottom: 0.5rem; }
.tech-stack { display: flex; gap: 1rem; justify-content: center; flex-wrap: wrap; margin-top: 2rem; }
.tech-badge { background: #1e293b; padding: 0.6rem 1.2rem; border-radius: 2rem; font-size: 0.9rem; font-weight: 500; display: inline-flex; align-items: center; gap: 8px; transition: 0.2s; }
.tech-badge:hover { background: #2d3a5e; transform: translateY(-2px); }
.cta { background: linear-gradient(145deg, rgba(15,23,42,0.8), rgba(2,6,23,0.9)); text-align: center; padding: 3rem 1.5rem; border-radius: 2rem; margin: 3rem auto; max-width: 900px; border: 1px solid rgba(56,189,248,0.3); }
.btn-primary { background: linear-gradient(95deg, #22c55e, #16a34a); padding: 0.7rem 1.6rem; border-radius: 40px; font-weight: 600; display: inline-flex; align-items: center; gap: 8px; transition: 0.2s; cursor: pointer; border: none; text-decoration: none; color: white; box-shadow: 0 6px 14px rgba(34,197,94,0.3); }
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 12px 20px rgba(34,197,94,0.4); }
.footer { border-top: 1px solid #1e293b; padding: 2rem; text-align: center; color: #5b6e8c; margin-top: 2rem; }
.ai-widget { position: fixed; bottom: 24px; right: 24px; z-index: 1050; }
.ai-toggle { display: none; }
.ai-button { background: linear-gradient(145deg, #22c55e, #15803d); width: 56px; height: 56px; border-radius: 60px; display: flex; align-items: center; justify-content: center; cursor: pointer; font-size: 28px; box-shadow: 0 8px 20px rgba(0,0,0,0.4); transition: 0.2s; }
.ai-button:hover { transform: scale(1.05); }
.ai-chat { position: absolute; bottom: 70px; right: 0; width: 340px; height: 480px; background: #0f172ae6; backdrop-filter: blur(20px); border-radius: 24px; display: none; flex-direction: column; border: 1px solid #38bdf8; overflow: hidden; }
.ai-toggle:checked + .ai-button + .ai-chat { display: flex; }
.ai-chat-header { background: #1e293b; padding: 12px 16px; font-weight: 700; display: flex; justify-content: space-between; }
.ai-chat-messages { flex: 1; overflow-y: auto; padding: 12px; display: flex; flex-direction: column; gap: 8px; }
.ai-message-bot, .ai-message-user { max-width: 90%; padding: 8px 12px; border-radius: 18px; font-size: 0.85rem; }
.ai-message-user { background: #1e2a3e; align-self: flex-end; border-bottom-right-radius: 4px; }
.ai-message-bot { background: #0f172a; border-left: 3px solid #22c55e; align-self: flex-start; border-bottom-left-radius: 4px; }
.ai-input-area { background: #1e293b; border: none; padding: 14px; color: white; border-top: 1px solid #334155; font-family: inherit; width: 100%; outline: none; }
@media (max-width: 880px) { .nav-links { display: none !important; } .hamburger { display: flex; } .hero h1 { font-size: 2.2rem; } .stats-grid { grid-template-columns: repeat(2, 1fr); } .features-grid, .team-grid { grid-template-columns: 1fr; } }
@media (max-width: 550px) { .hero h1 { font-size: 1.8rem; } .stat-card h2 { font-size: 1.8rem; } .mobile-menu a { font-size: 0.9rem; } .ai-chat { width: 300px; height: 440px; } }