/**
 * LOKACIJA: /assets/css/style.css
 * KOMPLETAN DIZAJN: Auto Dark Mode, 3D Elementi, Centrirane Forme, Mobile Fiks i Print Styles
 * FIX: Kontrast iznosa u Light modu i centriranje administracije
 */

:root {
    /* SVJETLA TEMA (Zadano) */
    --bg-main: #f1f5f9;
    --bg-card: #ffffff;
    --text-main: #0f172a; 
    --text-dim: #475569;
    --accent: #2563eb;
    --accent-glow: rgba(37, 99, 235, 0.1);
    --border: #cbd5e1;
    --nav-bg: rgba(255, 255, 255, 0.95);
    --input-bg: #ffffff;
    --danger: #ef4444;
    
    color-scheme: light dark;
}

@media (prefers-color-scheme: dark) {
    :root {
        /* TAMNA TEMA */
        --bg-main: #0f172a;
        --bg-card: #1e293b;
        --text-main: #f1f5f9;
        --text-dim: #94a3b8;
        --accent: #3b82f6;
        --accent-glow: rgba(59, 130, 246, 0.2);
        --border: #334155;
        --nav-bg: rgba(30, 41, 59, 0.95);
        --input-bg: #1e293b;
    }
}

/* Osnovna pravila */
html, body {
    background-color: var(--bg-main) !important;
    color: var(--text-main) !important;
    margin: 0;
    padding: 0;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    -webkit-font-smoothing: antialiased;
    min-height: 100vh;
}

body {
    padding-bottom: 120px; /* Prostor za navigaciju */
    display: flex;
    justify-content: center;
}

.container {
    padding: 20px;
    max-width: 500px;
    width: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
}

/* Kartice */
.card {
    background-color: var(--bg-card) !important;
    color: var(--text-main) !important;
    border: 1px solid var(--border);
    border-radius: 24px;
    padding: 20px;
    margin-bottom: 20px;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.05);
    width: 100%;
    box-sizing: border-box;
    position: relative;
    overflow: hidden;
}

/* Posebna klasa za istaknutu karticu (Ukupna potrošnja) - FIX za Light Mode */
.card-accent {
    background: var(--accent) !important;
    border: none !important;
    color: #ffffff !important;
    text-align: center;
    box-shadow: 0 10px 25px -5px rgba(37, 99, 235, 0.4);
}

.card-accent h1, .card-accent span, .card-accent div, .card-accent p {
    color: #ffffff !important;
}

.card h1, .card h2, .card h3, .card h4, .card p, .card span, .card label {
    color: var(--text-main);
}

.card-title {
    color: var(--text-dim) !important;
    font-size: 0.75rem;
    text-transform: uppercase;
    font-weight: 700;
    display: block;
    margin-bottom: 12px;
    letter-spacing: 0.5px;
}

/* Forme i unosi - Centrirano poravnanje */
.form-group {
    width: 100%;
    margin-bottom: 20px;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 700;
    font-size: 0.85rem;
    color: var(--text-dim);
    text-transform: uppercase;
    width: 100%;
}

input, select, textarea {
    width: 100%;
    max-width: 100%;
    padding: 14px;
    border: 2px solid var(--border) !important;
    border-radius: 16px;
    background-color: var(--input-bg) !important;
    color: var(--text-main) !important;
    font-size: 1rem;
    font-weight: 600;
    text-align: center;
    transition: all 0.2s ease;
    box-sizing: border-box;
}

input:focus, select:focus, textarea:focus {
    border-color: var(--accent) !important;
    box-shadow: 0 0 0 4px var(--accent-glow);
    outline: none;
}

textarea {
    resize: none;
    font-family: inherit;
}

/* Gumbi */
.btn-main, .btn-danger {
    color: #ffffff !important;
    border: none;
    padding: 16px;
    border-radius: 18px;
    font-weight: 800;
    font-size: 1rem;
    width: 100%;
    cursor: pointer;
    transition: transform 0.1s ease, box-shadow 0.2s ease;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.btn-main { background: var(--accent); box-shadow: 0 10px 20px -5px rgba(37, 99, 235, 0.4); }
.btn-danger { background: var(--danger); box-shadow: 0 10px 20px -5px rgba(239, 68, 68, 0.4); }
.btn-main:active, .btn-danger:active { transform: scale(0.97); }

/* 3D Gumb za kameru */
.camera-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 50vh;
}

.btn-3d {
    width: 160px;
    height: 160px;
    background: linear-gradient(145deg, var(--accent), #1e40af);
    border-radius: 50%;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    border: 6px solid var(--bg-card);
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.2);
    cursor: pointer;
    transition: transform 0.2s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    margin-bottom: 20px;
}

.btn-3d:active { transform: scale(0.92); }
.btn-3d svg { width: 60px; height: 60px; stroke: #ffffff; fill: none; margin-bottom: 5px; }
.btn-3d span { font-weight: 800; font-size: 0.85rem; text-transform: uppercase; color: #ffffff !important; }

/* Slike računa */
.receipt-img { 
    width: 100%; 
    max-height: 45vh;
    object-fit: contain;
    border-radius: 18px; 
    border: 1px solid var(--border);
    margin-bottom: 20px;
    background-color: #000000;
    cursor: zoom-in;
}

/* Donja Navigacija */
.bottom-nav {
    position: fixed;
    bottom: 25px;
    left: 15px;
    right: 15px;
    background: var(--nav-bg);
    backdrop-filter: blur(15px);
    -webkit-backdrop-filter: blur(15px);
    border-radius: 30px;
    display: flex;
    padding: 12px;
    border: 1px solid var(--border);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    z-index: 8000;
}

.bottom-nav a {
    flex: 1;
    text-align: center;
    color: var(--text-dim);
    text-decoration: none;
    font-size: 0.7rem;
    font-weight: 700;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
    transition: color 0.2s;
}

.bottom-nav a.active { color: var(--accent) !important; }
.bottom-nav span { font-size: 1.4rem; display: block; }

/* Oznake (Badges) */
.badge {
    padding: 4px 10px;
    border-radius: 8px;
    font-size: 0.7rem;
    font-weight: 800;
    text-transform: uppercase;
}

.badge-pending {
    background: rgba(245, 158, 11, 0.15);
    color: #f59e0b !important;
}

/* Progress barovi za kategorije na izvještajima */
.progress-container {
    width: 100%;
    height: 10px;
    background: var(--bg-main);
    border-radius: 5px;
    overflow: hidden;
    margin-top: 5px;
}

.progress-bar {
    height: 100%;
    background: var(--accent);
    border-radius: 5px;
    transition: width 0.5s ease-in-out;
}

/* Loader Overlay s efektom skeniranja */
.loader-overlay {
    position: fixed;
    inset: 0;
    background: var(--bg-main);
    z-index: 9999;
    display: none;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}

.scanner-line {
    width: 200px;
    height: 3px;
    background: var(--accent);
    box-shadow: 0 0 15px var(--accent);
    animation: scan 2s infinite ease-in-out;
}

@keyframes scan {
    0%, 100% { transform: translateY(-60px); opacity: 0.3; }
    50% { transform: translateY(60px); opacity: 1; }
}

@media print {
    .bottom-nav, .no-print, .btn-main, .btn-3d, .btn-danger, form.card { display: none !important; }
    body { background: #ffffff !important; padding: 0; }
    .card { box-shadow: none !important; border: 1px solid #eee !important; }
}