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

:root {
    --primary: #8b5cf6;
    --secondary: #d946ef;
    --tertiary: #0ea5e9;
    --bg: #fafafa;
    --text: #0f172a;
    --text-light: #64748b;
    --card-bg: rgba(255, 255, 255, 0.7);
    --header-bg: rgba(255, 255, 255, 0.6);
    --border-color: rgba(0, 0, 0, 0.08);

    /* App Specific Colors */
    --qr-color: #8b5cf6;
    --led-color: #d946ef;
    --call-color: #0ea5e9;
    --display-color: #10b981;
}

[data-theme="dark"] {
    --primary: #a78bfa;
    --secondary: #e879f9;
    --tertiary: #38bdf8;
    --bg: #09090b;
    --text: #f8fafc;
    --text-light: #94a3b8;
    --card-bg: rgba(255, 255, 255, 0.03);
    --header-bg: rgba(9, 9, 11, 0.6);
    --border-color: rgba(255, 255, 255, 0.08);
}

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

body {
    font-family: 'Inter', system-ui, -apple-system, sans-serif;
    line-height: 1.6;
    color: var(--text);
    background-color: var(--bg);
    background-image: radial-gradient(var(--border-color) 1px, transparent 1px);
    background-size: 24px 24px;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    transition: background-color 0.3s ease, color 0.3s ease;
}

/* Custom Scrollbar & Selection */
::-webkit-scrollbar { width: 10px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: var(--border-color); border-radius: 10px; }
::-webkit-scrollbar-thumb:hover { background: var(--primary); }
::selection { background: var(--primary); color: #ffffff; }

/* Animations */
.fade-in {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}
.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

/* Skip link for keyboard users */
.skip-link {
    position: absolute;
    left: -9999px;
    top: 10px;
    background: var(--text);
    color: white;
    padding: 8px 12px;
    border-radius: 6px;
    z-index: 9999;
    text-decoration: none;
    font-weight: 700;
}
.skip-link:focus {
    left: 20px;
}


/* Container */
.container { max-width: 1100px; margin: 0 auto; padding: 0 20px; }

/* Navbar */
header {
    position: sticky;
    top: 15px;
    z-index: 100;
    padding: 0 20px;
    transition: transform 0.3s ease;
}
.navbar { 
    display: flex; justify-content: space-between; align-items: center; gap: 16px; 
    background: var(--header-bg);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid var(--border-color);
    border-radius: 9999px;
    padding: 10px 24px;
    box-shadow: 0 10px 30px -10px rgba(0, 0, 0, 0.1);
}

/* Logo Styling */
.brand { display: flex; align-items: center; gap: 10px; text-decoration: none; }
.brand-logo-img { 
    width: 40px; height: 40px; 
    border-radius: 8px; 
    object-fit: contain;
    display: inline-block;
}
.brand-text { font-size: 1.5rem; font-weight: 700; color: var(--text); letter-spacing: -0.5px; }

.nav-menu { list-style: none; }
.nav-menu ul { list-style: none; display: flex; gap: 20px; margin: 0; padding: 0; }
.nav-menu a { color: var(--text); font-weight: 600; font-size: 0.95rem; transition: color 0.3s; text-decoration: none; }
.nav-menu a:hover { color: var(--secondary); }
.nav-menu li { position: relative; }
.nav-menu .dropdown-menu { position: absolute; top: calc(100% + 6px); left: 0; min-width: 200px; background: var(--card-bg); border-radius: 8px; box-shadow: 0 8px 20px rgba(0,0,0,0.08); display: none; transform-origin: top; z-index: 200; padding: 8px 0; border: 1px solid var(--border-color); transition: background-color 0.3s ease, border-color 0.3s ease; }
.nav-menu .dropdown-menu li { padding: 0; }
.nav-menu .dropdown-menu a { display: block; padding: 10px 14px; color: var(--text); text-decoration: none; font-weight: 600; }
.nav-menu .dropdown-menu a:hover { background: rgba(197,153,182,0.1); color: var(--secondary); }
.nav-item.dropdown.open > .dropdown-menu { display: block; }
@media (max-width: 768px) {
    .nav-menu { display: block; position: absolute; right: 16px; top: 64px; background: var(--card-bg); padding: 12px 18px; border-radius: 8px; box-shadow: 0 8px 20px rgba(0,0,0,0.08); transform: translateY(-8px); opacity: 0; pointer-events: none; border: 1px solid var(--border-color); }
    .nav-menu.open { transform: translateY(0); opacity: 1; pointer-events: auto; }
    .nav-menu .dropdown-menu { position: static; box-shadow: none; padding-left: 12px; display: none; border: none; }
    .nav-item.dropdown.open > .dropdown-menu { display: block; }
}
.nav-toggle { background: transparent; border: none; font-size: 1.2rem; color: var(--text); display: none; }

/* Animated mobile menu: uses transform & opacity for smooth slide */
.nav-menu { transition: transform 220ms cubic-bezier(.2,.9,.2,1), opacity 180ms ease; transform-origin: top right; }
@media (max-width: 768px) {
    .nav-toggle { display: block; }
    .nav-menu { display: block; position: absolute; right: 16px; top: 64px; background: var(--card-bg); padding: 12px 18px; border-radius: 8px; box-shadow: 0 8px 20px rgba(0,0,0,0.08); transform: translateY(-8px); opacity: 0; pointer-events: none; border: 1px solid var(--border-color); }
    .nav-menu.open { transform: translateY(0); opacity: 1; pointer-events: auto; }
} 

/* Hero Section */
.hero {
    position: relative;
    overflow: hidden;
    background: transparent;
    color: var(--text);
    text-align: center;
    padding: 100px 20px 80px;
    margin-bottom: 80px;
    border-bottom: 1px solid var(--border-color);
}
.hero::before {
    content: ''; position: absolute; top: -50%; left: -10%; width: 600px; height: 600px;
    background: radial-gradient(circle, var(--primary) 0%, transparent 60%);
    opacity: 0.15; filter: blur(80px); z-index: -1; animation: float 10s infinite alternate;
}
.hero::after {
    content: ''; position: absolute; bottom: -20%; right: -10%; width: 500px; height: 500px;
    background: radial-gradient(circle, var(--secondary) 0%, transparent 60%);
    opacity: 0.15; filter: blur(80px); z-index: -1; animation: float 8s infinite alternate-reverse;
}
@keyframes float { 0% { transform: translate(0, 0); } 100% { transform: translate(30px, 30px); } }
.hero h1 { 
    font-size: 4.5rem; margin-bottom: 16px; font-weight: 800; letter-spacing: -2px; 
    background: linear-gradient(135deg, var(--text) 20%, var(--primary) 50%, var(--secondary) 80%, var(--text));
    background-size: 300% 300%;
    -webkit-background-clip: text; -webkit-text-fill-color: transparent;
    animation: gradientFlow 8s ease infinite;
}
@keyframes gradientFlow {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}
.hero .subtitle { font-size: 1.25rem; font-weight: 500; color: var(--text-light); max-width: 650px; margin: 0 auto; }

/* Headings */
h2 { font-size: 2rem; color: var(--text); margin-bottom: 30px; text-align: center; }
h3 { font-size: 1.3rem; margin-bottom: 10px; color: var(--text); }

/* App Cards */
.app-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 30px; margin-bottom: 60px; }
@media (max-width: 600px) { .app-grid { grid-template-columns: 1fr; } }

.company-overview { text-align: center; margin-bottom: 30px; }
.company-overview .tagline { font-size: 1.05rem; font-weight: 700; color: var(--secondary); margin-top: 8px; }
.company-card { background: var(--card-bg); padding: 24px; border-radius: 12px; box-shadow: 0 6px 18px rgba(0,0,0,0.06); text-align: left; border: 1px solid var(--border-color); transition: background-color 0.3s ease; }
.card {
    background: var(--card-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-radius: 24px;
    padding: 32px;
    box-shadow: 0 8px 32px -4px rgba(0, 0, 0, 0.04);
    transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1), box-shadow 0.4s cubic-bezier(0.4, 0, 0.2, 1), border-color 0.3s ease;
    border: 1px solid var(--border-color);
    position: relative;
    overflow: hidden;
}
.card::before {
    content: ''; position: absolute; top: 0; left: 0; width: 100%; height: 4px;
    background: linear-gradient(90deg, var(--primary), var(--secondary));
    opacity: 0.8;
}
.card:hover { transform: translateY(-8px) scale(1.02); box-shadow: 0 20px 40px -5px rgba(139, 92, 246, 0.15); border-color: rgba(139, 92, 246, 0.4); }

/* App Specific Accents */
.card.qr-style { border-color: var(--qr-color); }
.card.led-style { border-color: var(--led-color); }
.card.call-style { border-color: var(--call-color); }
.card.display-style { border-color: var(--display-color); }

.app-header { display: flex; align-items: center; gap: 15px; margin-bottom: 20px; }
.app-logo { width: 56px; height: 56px; object-fit: contain; border-radius: 8px; background: var(--card-bg); padding: 6px; box-shadow: 0 2px 6px rgba(0,0,0,0.04); border: 1px solid var(--border-color); }
.card-link { cursor: pointer; }
.card-link:focus { outline: 3px solid rgba(197,153,182,0.4); transform: translateY(-2px); }
.card-actions { display: flex; gap: 12px; align-items: center; }
.app-icon {
    width: 50px; height: 50px;
    border-radius: 12px;
    display: flex; align-items: center; justify-content: center;
    font-size: 1.5rem;
    color: white;
}
.qr-bg { background: var(--qr-color); }
.led-bg { background: var(--led-color); }
.call-bg { background: var(--call-color); }

.btn {
    display: inline-block;
    padding: 14px 28px;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: #ffffff !important;
    border-radius: 9999px;
    text-decoration: none;
    font-weight: 700;
    margin-top: 20px;
    border: none;
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1), box-shadow 0.3s ease;
}
.btn:hover { transform: translateY(-3px) scale(1.05); box-shadow: 0 10px 25px -5px rgba(217, 70, 239, 0.5); }

/* Form Styles */
.form-group { margin-bottom: 15px; }
.form-label { display: block; margin-bottom: 5px; font-weight: 600; color: var(--text); }
.form-input, .form-textarea { width: 100%; padding: 12px 15px; border-radius: 8px; border: 1px solid var(--border-color); background: var(--bg); color: var(--text); font-family: inherit; font-size: 1rem; transition: border-color 0.3s ease, box-shadow 0.3s ease; }
.form-input:focus, .form-textarea:focus { outline: none; border-color: var(--primary); box-shadow: 0 0 0 3px rgba(197,153,182,0.2); }
.form-textarea { resize: vertical; min-height: 120px; }

/* FAQ Accordion Styles */
.faq-accordion {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    margin-bottom: 15px;
    padding: 20px 24px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.02);
    transition: background-color 0.3s ease, box-shadow 0.3s ease;
}
.faq-accordion:last-child {
    margin-bottom: 0;
}
.faq-accordion summary {
    font-weight: 600;
    font-size: 1.05rem;
    color: var(--text);
    cursor: pointer;
    list-style: none;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: color 0.2s ease;
}
.faq-accordion summary::-webkit-details-marker {
    display: none;
}
.faq-accordion summary::after {
    content: '\f078';
    font-family: 'Font Awesome 6 Free';
    font-weight: 900;
    font-size: 0.9rem;
    transition: transform 0.3s ease;
}
.faq-accordion[open] summary::after {
    transform: rotate(180deg);
}
.faq-accordion[open] summary {
    color: var(--primary);
    margin-bottom: 10px;
}
.faq-content {
    color: var(--text-light);
    line-height: 1.7;
    animation: slideDown 0.3s ease-out forwards;
    transform-origin: top;
}
@keyframes slideDown {
    0% { opacity: 0; transform: scaleY(0.9); }
    100% { opacity: 1; transform: scaleY(1); }
}

/* Footer */
footer { background: var(--bg); border-top: 1px solid var(--border-color); padding: 40px 0 18px 0; margin-top: auto; color: var(--text); font-size: 14px; position: relative; overflow: hidden; }
.footer-grid { max-width: 1100px; margin: 0 auto; padding: 0 20px; display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 18px; align-items: start; }
.footer-grid h4 { margin: 0 0 12px 0; font-size: 1.05rem; color: var(--text); font-weight: 700; }
.footer-grid p, .footer-grid li { color: var(--text-light); font-size: 0.95rem; }
.footer-grid ul { list-style: none; padding: 0; margin: 0; }
.footer-grid a.footer-link, .footer-grid a { color: var(--text-light); text-decoration: none; transition: color 0.2s; }
.footer-grid a:hover { color: var(--primary); }
.footer-grid .social-icons a { display: inline-block; margin-right: 10px; }
.social-icon { width: 32px; height: 32px; display: inline-block; vertical-align: middle; filter: grayscale(1) opacity(0.7); transition: filter 0.3s; }
.social-icon:hover { filter: grayscale(0) opacity(1); }
.footer-bottom { max-width: 1100px; margin: 20px auto 0 auto; padding: 20px 20px 0 20px; display: flex; gap: 12px; justify-content: space-between; align-items: center; border-top: 1px solid var(--border-color); }
.footer-bottom .bottom-center { text-align: center; flex: 1; color: var(--text-light); font-size: 0.95rem; display: flex; align-items: center; gap: 18px; justify-content: center; }
.footer-bottom .bottom-left { color: var(--text-light); font-size: 0.95rem; }
.footer-bottom .bottom-links { display: inline-block; }
.footer-bottom .footer-socials { display: inline-flex; align-items: center; gap: 8px; }
.footer-bottom .footer-socials .social-icon { width: 36px; height: 36px; display: inline-block; vertical-align: middle; filter: grayscale(1) opacity(0.7); transition: filter 0.3s; }
.footer-bottom .footer-socials .social { display: inline-block; margin-left: 4px; }
.footer-bottom .footer-socials .social:hover .social-icon { filter: grayscale(0) opacity(1); transform: translateY(-2px); }
@media (max-width: 480px) {
    .footer-bottom { flex-direction: column; align-items: flex-start; gap: 6px; }
    .footer-bottom .bottom-center { justify-content: flex-start; }
    .footer-bottom .footer-socials .social-icon { width: 28px; height: 28px; }
}
@media (max-width: 768px) {
    .footer-grid { grid-template-columns: 1fr; text-align: left; }
    .footer-bottom { flex-direction: column; gap: 8px; align-items: flex-start; }
}

/* Responsive */
@media (max-width: 768px) {
    .hero h1 { font-size: 2rem; }
}