/* ------------------- */
/* --- FUTURISTIC THEME & BASE --- */
/* ------------------- */
:root {
    --bg-color: #0D1117;
    --card-bg: #161B22;
    --text-color: #c9d1d9;
    --heading-color: #ffffff;
    --primary-accent: #00E1FF; /* Electric Cyan */
    --border-color: #30363d;
    --shadow-glow: 0 0 25px -5px rgba(0, 225, 255, 0.3);
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
    font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", "Roboto", "Oxygen", "Ubuntu", "Cantarell", "Helvetica Neue", Arial, Helvetica, sans-serif;
    background-color: var(--bg-color);
    color: var(--text-color);
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
}

/* ------------------- */
/* --- LAYOUT & TYPOGRAPHY --- */
/* ------------------- */
.container { max-width: 1100px; margin: 0 auto; padding: 120px 20px; }
h1, h2 { font-weight: 700; color: var(--heading-color); line-height: 1.3; }
h3 { font-weight: 700; color: var(--heading-color); font-size: 1.5rem; }
h1 { font-size: clamp(2.5rem, 5vw, 3.5rem); }
h2 { font-size: clamp(2rem, 4vw, 2.8rem); text-align: center; margin-bottom: 80px; }
h2 .highlight { color: var(--primary-accent); }
p { font-size: 1.1rem; max-width: 650px; }

.btn {
    display: inline-block;
    padding: 16px 38px;
    background-color: var(--primary-accent);
    color: #000;
    text-decoration: none;
    font-weight: 700;
    border-radius: 8px;
    border: none;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: var(--shadow-glow);
}
.btn:hover { transform: translateY(-3px) scale(1.05); filter: brightness(1.2); }

/* Reveal Animation */
.reveal { opacity: 0; transform: translateY(40px); transition: opacity 0.8s ease-out, transform 0.8s ease-out; }
.reveal.visible { opacity: 1; transform: translateY(0); }

/* ------------------- */
/* --- HEADER --- */
/* ------------------- */
.main-header { display: flex; justify-content: space-between; align-items: center; padding: 20px 40px; position: absolute; width: 100%; top: 0; left: 0; z-index: 100; }
.logo { font-weight: 700; color: var(--heading-color); text-decoration: none; }
.logo span { color: var(--primary-accent); }

/* ------------------- */
/* --- HERO SECTION --- */
/* ------------------- */
#hero {
    display: grid;
    grid-template-columns: 1fr 1fr;
    align-items: center;
    gap: 60px;
    padding-top: 150px;
    padding-bottom: 150px;
    min-height: 100vh;
}
#hero p { margin: 25px 0 40px; }

.hero-animation { height: 500px; position: relative; display: flex; align-items: center; justify-content: center; }
.nfc-phone { width: 250px; height: 500px; background: #010409; border-radius: 40px; border: 1px solid var(--border-color); position: relative; z-index: 2; display: flex; align-items: center; justify-content: center; overflow: hidden; }
.nfc-phone-screen { width: 92%; height: 95%; background: var(--bg-color); border-radius: 30px; opacity: 0; transition: opacity 0.5s ease 0.5s; }

.nfc-card {
    width: 150px; height: 95px;
    background: linear-gradient(45deg, #161B22, #010409);
    border-radius: 12px;
    border: 1px solid var(--border-color);
    position: absolute;
    z-index: 3;
    left: 50%;
    top: 50%;
    transform: translate(80%, -50%) rotate(-10deg);
    animation: tap-animation 5s infinite ease-in-out;
    cursor: pointer;
}
.nfc-card:hover { animation-play-state: paused; }

.nfc-signal {
    position: absolute;
    left: 50%; top: 50%;
    width: 30px; height: 30px;
    border-radius: 50%;
    border: 2px solid var(--primary-accent);
    opacity: 0;
    transform: translate(-50%, -50%) scale(0);
    animation: signal-animation 5s infinite ease-in-out;
}

@keyframes tap-animation {
    0%, 20%, 100% { transform: translate(80%, -50%) rotate(-10deg); }
    40%, 60% { transform: translate(25%, -50%) rotate(0deg); }
}
@keyframes signal-animation {
    40% { opacity: 0; transform: translate(-50%, -50%) scale(0); }
    50% { opacity: 1; transform: translate(-50%, -50%) scale(1); box-shadow: var(--shadow-glow); }
    70% { opacity: 0; transform: translate(-50%, -50%) scale(5); box-shadow: none; }
    100% { opacity: 0; }
}
.hero-animation:hover .nfc-phone-screen { opacity: 1; }

/* ------------------- */
/* --- INFO BLOCK --- */
/* ------------------- */
.info-block { text-align: center; }
.info-block p { margin: 0 auto; }

/* ------------------- */
/* --- HOW IT WORKS BLOCK --- */
/* ------------------- */
#how-it-works { background: var(--card-bg); }
.steps-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 40px;
}
.step-card {
    padding: 30px;
    border: 1px solid var(--border-color);
    border-radius: 16px;
    background: var(--bg-color);
}
.step-card h3 { display: flex; align-items: center; gap: 15px; margin-bottom: 15px; }
.step-number {
    color: var(--primary-accent);
    font-size: 2rem;
}

/* ------------------- */
/* --- BENEFITS BLOCK --- */
/* ------------------- */
.benefits-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 30px; }
.benefit-item { display: flex; align-items: flex-start; gap: 20px; }
.benefit-icon { font-size: 2rem; color: var(--primary-accent); }
.benefit-item h3 { font-size: 1.4rem; }

/* ------------------- */
/* --- FINAL CTA --- */
/* ------------------- */
#final-cta .cta-box {
    text-align: center;
    padding: 80px 40px;
    border: 1px solid var(--border-color);
    border-radius: 20px;
    background: var(--card-bg);
}
#final-cta p { margin: 20px auto 40px; }

/* ------------------- */
/* --- RESPONSIVENESS --- */
/* ------------------- */
@media (max-width: 992px) {
    #hero { grid-template-columns: 1fr; text-align: center; }
    #hero p { margin-left: auto; margin-right: auto; }
    .hero-animation { margin-top: 60px; }
}
@media (max-width: 768px) {
    .container { padding: 80px 20px; }
    h2 { margin-bottom: 60px; }
    .benefits-grid { grid-template-columns: 1fr; }
}
.faq-item {
    margin-bottom: 2rem;
}
.faq-item h3 {
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
}
.faq-item p {
    margin: 0;
    color: #444;
}