/* ============================================
   TRUE NEOBRUTALIST DESIGN TOKENS
   ============================================ */
:root {
    /* High Voltage Colors */
    --bg: #FDF9F0; /* Off-white classic brutalist */
    --card-bg: #FFFFFF;
    --accent-yellow: #FFFF00; /* Pure Neon */
    --accent-green: #00FF66;
    --accent-pink: #FF00FF;
    --accent-blue: #3333FF;
    --accent-orange: #FF6600;
    --accent-cyan: #00FFFF;
    
    /* Strong Definitions */
    --border-width: 5px;
    --border-black: #000000;
    
    /* Shadows - Deep & Solid */
    --shadow-large: 12px 12px 0px 0px #000;
    --shadow-medium: 8px 8px 0px 0px #000;
    --shadow-small: 5px 5px 0px 0px #000;
    --shadow-flat: 0px 0px 0px 0px #000;

    /* Typography */
    --font-heading: 'Lexend Mega', sans-serif;
    --font-body: 'Space Grotesk', sans-serif;
    --font-mono: 'Space Mono', monospace;

    /* Spacing */
    --space-sm: 1.2rem;
    --space-md: 2rem;
    --space-lg: 3rem;
}

/* ============================================
   RESET & GLOBAL
   ============================================ */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    font-family: var(--font-body);
    background-color: var(--bg);
    /* Grid background pattern */
    background-image: radial-gradient(#000 1.5px, transparent 1.5px);
    background-size: 24px 24px;
    color: #000;
    line-height: 1.2;
    min-height: 100vh;
    padding: var(--space-lg) var(--space-sm);
}

/* ============================================
   LAYOUT
   ============================================ */
.app-container {
    max-width: 750px;
    margin: 0 auto;
}

/* ============================================
   HEADER / LOGO
   ============================================ */
.app-header {
    text-align: center;
    margin-bottom: var(--space-lg);
}

.logo {
    display: inline-flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem 2rem;
    background: var(--accent-yellow);
    border: var(--border-width) solid #000;
    box-shadow: var(--shadow-large);
    transform: rotate(-2deg);
}

.logo-icon {
    font-size: 3rem;
    font-weight: 900;
}

.logo h1 {
    font-family: var(--font-heading);
    font-size: 2.5rem;
    letter-spacing: -2px;
}

.tagline {
    font-family: var(--font-mono);
    font-weight: 700;
    font-size: 1.1rem;
    background: var(--accent-cyan);
    display: inline-block;
    padding: 0.5rem 1rem;
    margin-top: 1.5rem;
    border: var(--border-width) solid #000;
    transform: rotate(1deg);
}

/* ============================================
   CARDS
   ============================================ */
.card {
    background: var(--card-bg);
    border: var(--border-width) solid #000;
    box-shadow: var(--shadow-large);
    margin-bottom: var(--space-lg);
    position: relative;
    margin-top: -30px; /* Overlap effect */
}

.card:first-of-type {
    margin-top: 0;
}

/* Staggered rotation for that "thrown together" look */
#section-personen { transform: rotate(0.5deg); }
#section-uitgaven { transform: rotate(-0.8deg); }
#section-resultaat { transform: rotate(1.2deg); }

.card-header {
    padding: 1.5rem;
    border-bottom: var(--border-width) solid #000;
    display: flex;
    align-items: center;
    gap: 1rem;
}

.card-header h2 {
    font-family: var(--font-heading);
    font-size: 1.8rem;
    text-transform: uppercase;
}

.step-badge {
    width: 60px;
    height: 60px;
    background: #000;
    color: #fff;
    font-family: var(--font-heading);
    font-size: 2rem;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.card-body {
    padding: 2rem;
}

/* Section Colors */
#section-personen .card-header { background: var(--accent-green); }
#section-uitgaven .card-header { background: var(--accent-blue); color: #fff; }
#section-uitgaven .step-badge { background: #fff; color: #000; }
#section-resultaat .card-header { background: var(--accent-pink); }

/* ============================================
   FORM ELEMENTS
   ============================================ */
.input-row {
    display: flex;
    gap: 1rem;
    margin-bottom: 2rem;
}

label {
    font-family: var(--font-heading);
    font-size: 0.9rem;
    text-transform: uppercase;
    margin-bottom: 0.5rem;
    display: block;
}

input[type="text"],
input[type="number"],
select {
    width: 100%;
    padding: 1.2rem;
    font-family: var(--font-mono);
    font-weight: 700;
    font-size: 1.1rem;
    border: var(--border-width) solid #000;
    background: #fff;
    outline: none;
    transition: all 0.1s;
}

input:focus {
    background: var(--bg);
    box-shadow: inset 4px 4px 0px #000;
}

/* BUTTONS */
.btn {
    font-family: var(--font-heading);
    font-size: 1.1rem;
    text-transform: uppercase;
    padding: 1.2rem 2rem;
    border: var(--border-width) solid #000;
    cursor: pointer;
    background: #fff;
    box-shadow: var(--shadow-medium);
    transition: all 0.1s;
    user-select: none;
}

.btn:hover {
    transform: translate(-4px, -4px);
    box-shadow: 16px 16px 0px 0px #000;
}

.btn:active {
    transform: translate(8px, 8px);
    box-shadow: var(--shadow-flat);
}

.btn-primary { background: var(--accent-yellow); }
.btn-danger { background: var(--accent-orange); color: #fff; }
.btn-wide { width: 100%; margin-top: 1rem; }

/* ============================================
   PERSON CHIPS
   ============================================ */
.personen-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
}

.persoon-chip {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 0.8rem 1.2rem;
    background: #fff;
    border: var(--border-width) solid #000;
    box-shadow: var(--shadow-small);
    font-weight: 900;
    font-size: 1.2rem;
}

.avatar {
    width: 32px;
    height: 32px;
    background: #000;
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.9rem;
}

.remove-persoon {
    background: var(--accent-orange);
    border: 2px solid #000;
    width: 24px;
    height: 24px;
    font-size: 1.2rem;
    line-height: 1;
    cursor: pointer;
    font-weight: 900;
}

/* ============================================
   UITGAVEN FORM & LIST
   ============================================ */
.form-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
}
.form-grid .form-group:first-child { grid-column: span 2; }

.deelnemers-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 0.8rem;
    margin: 1.5rem 0;
}

.deelnemer-checkbox label {
    display: block;
    padding: 0.8rem 1.2rem;
    border: var(--border-width) solid #000;
    background: #fff;
    font-family: var(--font-mono);
    font-weight: 700;
    cursor: pointer;
    user-select: none;
}

.deelnemer-checkbox input { display: none; }
.deelnemer-checkbox input:checked + label {
    background: var(--accent-green);
    box-shadow: var(--shadow-small);
    transform: translate(-3px, -3px);
}

.uitgave-item {
    padding: 1.5rem;
    background: #fff;
    border: var(--border-width) solid #000;
    box-shadow: var(--shadow-medium);
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-top: -35px; /* Overlap effect */
    position: relative;
    transition: transform 0.2s, z-index 0s;
}

.uitgave-item:first-child {
    margin-top: 0;
}

.uitgave-item:hover {
    z-index: 10;
    transform: scale(1.02) rotate(1deg);
    box-shadow: 15px 15px 0px 0px #000;
}

.uitgave-item.editing {
    border-color: var(--accent-pink);
    animation: pulseEdit 1.5s infinite;
    z-index: 20;
}

@keyframes pulseEdit {
    0% { box-shadow: 8px 8px 0px 0px #000; }
    50% { box-shadow: 12px 12px 0px 0px var(--accent-pink); }
    100% { box-shadow: 8px 8px 0px 0px #000; }
}

.uitgave-actions {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.mini-tag-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 4px;
    margin-top: 8px;
}

.mini-tag {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    font-weight: 700;
    background: #ddd;
    border: 2px solid #000;
    padding: 2px 5px;
    text-transform: uppercase;
}

.mini-tag.active {
    background: var(--accent-green);
}

.uitgave-info { flex: 1; }
.uitgave-beschrijving { font-family: var(--font-heading); font-size: 1.4rem; margin-bottom: 0.2rem; }
.uitgave-meta { font-family: var(--font-mono); font-size: 0.9rem; text-transform: uppercase; font-weight: 700; }
.uitgave-bedrag { 
    font-family: var(--font-mono); 
    font-size: 1.8rem; 
    font-weight: 900; 
    background: #FF00FF;
    padding: 0.5rem 1rem;
    border: var(--border-width) solid #000;
    color: #fff;
}

/* ============================================
   RESULTAAT
   ============================================ */
.saldo-overzicht {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
    gap: 1rem;
    margin-bottom: 2rem;
}

.saldo-item {
    border: var(--border-width) solid #000;
    padding: 1.5rem 1rem;
    text-align: center;
    box-shadow: var(--shadow-small);
}

.saldo-item.positief { background: var(--accent-green); }
.saldo-item.negatief { background: var(--accent-orange); color: #fff; }
.saldo-item.nul { background: #ccc; }

.saldo-naam { font-family: var(--font-heading); font-size: 1.1rem; text-transform: uppercase; margin-bottom: 0.5rem; }
.saldo-bedrag { font-family: var(--font-mono); font-size: 1.5rem; font-weight: 700; }

.transfers-list {
    display: flex;
    flex-direction: column;
    gap: 1.2rem;
}

.transfer-item {
    background: #fff;
    border: var(--border-width) solid #000;
    box-shadow: var(--shadow-medium);
    padding: 1.5rem;
    display: flex;
    align-items: center;
    gap: 1rem;
}

.transfer-from, .transfer-to { font-family: var(--font-heading); font-size: 1.2rem; text-transform: uppercase; }
.transfer-arrow { font-size: 2rem; font-weight: 900; }
.transfer-amount {
    margin-left: auto;
    font-family: var(--font-mono);
    font-size: 1.5rem;
    font-weight: 900;
    background: var(--accent-yellow);
    padding: 0.5rem 1rem;
    border: 3px solid #000;
}

/* ============================================
   TOTAAL BAR
   ============================================ */
.totaal-bar {
    margin-top: 2rem;
    padding: 1.5rem;
    background: #000;
    color: #fff;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-family: var(--font-heading);
}

.totaal-value {
    font-family: var(--font-mono);
    font-size: 2rem;
    color: var(--accent-yellow);
}

/* ============================================
   UTILITIES
   ============================================ */
.hidden { display: none !important; }
.empty-state {
    padding: 2rem;
    text-align: center;
    border: 4px dashed #000;
    font-family: var(--font-mono);
    font-weight: 700;
}

/* ============================================
   RESPONSIVE
   ============================================ */
@media (max-width: 600px) {
    .logo h1 { font-size: 1.8rem; }
    .form-grid { grid-template-columns: 1fr; }
    .input-row { flex-direction: column; }
    .transfer-item { flex-direction: column; text-align: center; }
    .transfer-amount { margin-left: 0; width: 100%; }
}