/* LEON | VOUCHER SYSTEM - INTRO INDUSTRIAL PRO v5.0 */

:root {
    --leon-blue: #002D54;
    --leon-dark: #001a33;
    --leon-border: rgba(255, 255, 255, 0.08);
    --text-main: #ffffff;
    --text-muted: rgba(255, 255, 255, 0.5);
    --accent-blue: #3498db;
    --accent-cyan: #00c8ff;
}

body {
    background-color: var(--leon-dark);
    background-image: linear-gradient(180deg, var(--leon-blue) 0%, var(--leon-dark) 100%);
    color: var(--text-main);
    font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
    margin: 0;
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    -webkit-font-smoothing: antialiased;
}

.menu-container {
    text-align: center;
    width: 100%;
    max-width: 450px;
    padding: 20px;
    z-index: 10;
}

/* --- LOGO SEKCIJA & ANIMACIJE --- */
.logo-fade-wrapper {
    margin-bottom: 25px;
    opacity: 0;
    transform: translateY(-25px);
    animation: industrialBoot 1s ease-out forwards;
}

.intro-logo {
    height: 75px;
    width: auto;
    /* Drop shadow dodaje dubinu logotipu na tamnoj pozadini */
    filter: drop-shadow(0 0 15px rgba(52, 152, 219, 0.3));
}

.sector-title {
    font-size: 0.75rem;
    font-weight: 700;
    color: var(--accent-blue);
    letter-spacing: 3px;
    text-transform: uppercase;
    margin-bottom: 10px;
    opacity: 0;
}

h2 {
    font-size: 2.2rem;
    font-weight: 800;
    letter-spacing: -1px;
    margin-bottom: 40px;
    opacity: 0;
}

/* --- KARTICA (Tvoj stil + Industrial dorada) --- */
.card-grid {
    perspective: 1000px;
    opacity: 0;
}

.menu-card {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--leon-border);
    border-radius: 16px;
    padding: 40px 30px;
    text-decoration: none !important;
    color: var(--text-main) !important;
    display: block;
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    /* Tvoj originalni springy efekat */
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    position: relative;
    overflow: hidden;
}

.card-icon-wrap i {
    font-size: 3.5rem;
    margin-bottom: 25px;
    color: var(--accent-blue);
    transition: 0.4s;
    display: inline-block;
}

.menu-card h3 {
    font-size: 1.2rem;
    font-weight: 700;
    margin-bottom: 15px;
    letter-spacing: 1px;
}

.menu-card p {
    font-size: 0.9rem;
    color: var(--text-muted);
    line-height: 1.6;
    margin: 0;
}

/* Hover efekti */
.menu-card:hover {
    background: rgba(255, 255, 255, 0.07);
    border-color: var(--accent-blue);
    transform: translateY(-12px) scale(1.02);
    box-shadow: 0 25px 50px rgba(0, 0, 0, 0.4);
}

.menu-card:hover i {
    color: var(--accent-cyan);
    transform: scale(1.1);
    text-shadow: 0 0 25px rgba(0, 200, 255, 0.4);
}

/* Industrial detalj: Svetleća linija na dnu kartice */
.card-status-line {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background: linear-gradient(90deg, transparent, var(--accent-blue), transparent);
    opacity: 0.3;
    transition: 0.4s;
}

.menu-card:hover .card-status-line {
    opacity: 1;
    height: 4px;
}

/* Footer info na dnu */
.footer-info {
    margin-top: 50px;
    font-size: 0.65rem;
    font-weight: 600;
    color: var(--text-muted);
    letter-spacing: 1.5px;
    opacity: 0;
}

/* --- KEYFRAMES ZA BOOT-UP SEKVENCIJU --- */
@keyframes industrialBoot {
    from { 
        opacity: 0; 
        transform: translateY(20px); 
    }
    to { 
        opacity: 1; 
        transform: translateY(0); 
    }
}

/* Specifične animacije sa kašnjenjem */
.anim-delay-1 { animation: industrialBoot 0.8s ease-out 0.3s forwards; }
.anim-delay-2 { animation: industrialBoot 0.8s ease-out 0.5s forwards; }
.anim-delay-3 { animation: industrialBoot 0.8s ease-out 0.8s forwards; }
.anim-delay-4 { animation: industrialBoot 0.8s ease-out 1.2s forwards; }