:root {
    --bg-color: #F8FAFC; 
    --surface-color: #ffffff; 
    --text-color: #1e293b; 
    --text-muted: #94A3B8;
    --border-color: #F1F5F9; 
    --primary-color: #0F766E; 
    --primary-hover: #14B8A6;
    --primary-gradient: rgba(15, 118, 110, 0.08);
    --danger-color: #EF4444; 
    --success-color: #10B981;
    --tab-bg: #F0FDFA;
    --shadow-color: rgb(0 0 0 / 0.05);
}

.logo-dark {
    display: none;
}

* { -webkit-tap-highlight-color: transparent; }

body { 
    font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Helvetica Neue", sans-serif; 
    -webkit-font-smoothing: antialiased;
    background-color: var(--bg-color); 
    color: var(--text-color); 
    margin: 0; 
    display: flex; 
    justify-content: center; 
    font-weight: 400; 
    overscroll-behavior-y: none;
}

#app-movil { 
    background-color: var(--surface-color); 
    width: 100%; 
    max-width: 450px; 
    min-height: 100vh; 
    padding: calc(2rem + env(safe-area-inset-top)) calc(2rem + env(safe-area-inset-right)) calc(2rem + env(safe-area-inset-bottom)) calc(2rem + env(safe-area-inset-left)); 
    box-sizing: border-box; 
    box-shadow: 0 4px 20px var(--shadow-color); 
    -webkit-overflow-scrolling: touch;
}

/* --- Novo Layout do Header (Grid) --- */
.header-app {
    display: grid;
    grid-template-columns: 50px 1fr 50px; /* Garante o logo exatamente no centro */
    align-items: center;
    padding: 20px 0 16px 0;
    margin-bottom: 24px;
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    position: sticky;
    top: 0;
    z-index: 100;
    border-bottom: 1px solid var(--border-color);
}

.action-left { justify-self: start; margin-left: 0; }
.action-right { justify-self: end; margin-left: 0; }

.brand-title {
    display: flex;
    justify-content: center;
    align-items: center;
    margin: 0;
    width: 100%;
}

.brand-title img {
    height: 72px;
    width: auto;
}

/* --- Design do Dropdown --- */
.settings-menu-container {
    position: relative;
}

.settings-dropdown {
    position: absolute;
    top: calc(100% + 10px);
    right: 0;
    background: var(--surface-color);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    box-shadow: 0 10px 25px var(--shadow-color);
    padding: 12px;
    min-width: 200px;
    z-index: 200;
    transform-origin: top right;
}

.dropdown-section {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.dropdown-label {
    font-size: 0.7rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 10px;
    font-weight: 700;
}

.divider-small {
    border: 0;
    border-top: 1px solid var(--border-color);
    margin: 12px 0;
}

.btn-dropdown {
    background: transparent;
    border: none;
    color: var(--text-color);
    font-weight: 600;
    font-size: 0.95rem;
    padding: 10px;
    border-radius: 10px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    width: 100%;
    transition: background-color 0.2s ease;
}

.btn-dropdown:hover {
    background-color: var(--bg-color);
}

.lang-flags {
    display: flex;
    gap: 8px;
    background: var(--surface-color);
    padding: 6px 12px;
    border-radius: 30px;
    align-items: center;
    border: 1px solid var(--border-color);
    box-shadow: 0 2px 8px var(--shadow-color);
}

.flag {
    cursor: pointer;
    opacity: 0.3;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    font-size: 1.1rem;
    filter: grayscale(100%);
    transform: scale(0.9);
}

.flag:hover {
    opacity: 0.6;
    transform: scale(1);
}

.flag.active {
    opacity: 1;
    transform: scale(1.2);
    filter: grayscale(0%);
    text-shadow: 0 2px 4px rgba(0,0,0,0.15);
}

h1 { margin: 0; font-size: 1.6rem; font-weight: 700; }

.btn-icono { 
    background: none; 
    border: none; 
    font-size: 1.5rem; 
    cursor: pointer; 
    padding: 5px; 
    color: var(--primary-color); 
    transition: transform 0.2s ease, max-width 0.4s ease; 
    max-width: 50px; 
    overflow: hidden; 
}

.btn-icono.oculto {
    max-width: 0;
}

h3 { font-size: 1.2rem; margin-bottom: 1rem; color: var(--primary-color); padding-bottom: 5px; font-weight: 700; }

.transicion-seccion {
    transition: opacity 0.4s ease, transform 0.4s ease, max-height 0.4s ease;
    opacity: 1; transform: translateY(0); max-height: 2500px; overflow: hidden;
}
.oculto { 
    opacity: 0; transform: translateY(10px); max-height: 0; pointer-events: none; margin: 0 !important; padding: 0 !important; border: none !important;
}

.onboarding-tabs { display: flex; gap: 10px; margin-bottom: 20px; }
.tab-btn { flex: 1; padding: 10px; text-align: center; background: transparent; border: 2px solid var(--border-color); border-radius: 12px; color: var(--text-muted); font-weight: 500; cursor: pointer; transition: 0.2s; font-size: 0.85rem;}
.tab-btn.active { background: var(--tab-bg); border-color: var(--primary-color); color: var(--primary-color); font-weight: 700; }
.calc-result { background-color: var(--tab-bg); padding: 15px; border-radius: 12px; margin-bottom: 15px; text-align: center; border: 1px dashed var(--primary-color);}
.calc-result strong { font-size: 1.5rem; color: var(--primary-color); display: block; margin-top: 5px; font-variant-numeric: tabular-nums;}

.grid-balances { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin-bottom: 15px; }
.balance-card { text-align: center; padding: 1rem 0.5rem; background: var(--surface-color); border-radius: 16px; border: none; box-shadow: 0 4px 6px -1px var(--shadow-color), 0 2px 4px -2px var(--shadow-color); }
.balance-card.highlight { background: linear-gradient(135deg, var(--primary-gradient) 0%, transparent 100%); grid-column: span 2; padding: 1.5rem; }
.b-title { font-size: 0.75rem; color: var(--text-muted); text-transform: uppercase; letter-spacing: 1px; margin-bottom: 0.5rem; display: block; font-weight: 500;}
.b-amount { font-size: 1.5rem; font-weight: 700; color: var(--text-color); font-variant-numeric: tabular-nums; }
.highlight .b-amount { font-size: 2.8rem; color: var(--primary-color); font-weight: 800; }

.custom-progress { width: 100%; height: 12px; background-color: var(--border-color); border-radius: 6px; margin-top: 10px; overflow: hidden; }
.custom-progress-fill { height: 100%; background-color: var(--success-color); border-radius: 6px; width: 0%; transition: width 0.5s cubic-bezier(0.4, 0, 0.2, 1), background-color 0.3s ease; }
.custom-progress-fill.warning { background-color: var(--danger-color); }

.form-group { margin-bottom: 1rem; text-align: left;}
label { display: block; margin-bottom: 0.5rem; font-size: 0.9rem; font-weight: 500; color: var(--text-color);}
input, select { width: 100%; padding: 0.8rem; border: 1px solid var(--border-color); border-radius: 12px; background-color: var(--bg-color); color: var(--text-color); box-sizing: border-box; font-size: 1rem; font-family: inherit;}
button.btn-principal { width: 100%; padding: 1rem; background-color: var(--primary-color); color: white; border: none; border-radius: 12px; font-weight: 700; font-size: 1rem; cursor: pointer; transition: background-color 0.2s ease, opacity 0.2s ease; margin-bottom: 10px;}
button.btn-principal:hover { background-color: var(--primary-hover); }
button.btn-principal:active { opacity: 0.7; }

.log { list-style: none; padding: 0; margin: 0; }
.log li { border-radius: 12px; padding: 1rem 0.5rem; margin-bottom: 8px; display: flex; justify-content: space-between; align-items: center; transition: background-color 0.2s ease; box-shadow: 0 1px 2px var(--shadow-color); background-color: var(--surface-color);}
.log li:hover { background-color: var(--bg-color); }
.expense-info { display: flex; flex-direction: column; flex-grow: 1; margin-left: 10px; overflow: hidden; }
.expense-desc { font-weight: 700; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.expense-cat { font-size: 0.75rem; color: var(--primary-color); text-transform: uppercase; font-weight: 700; margin-top: 2px;}
.expense-date { font-size: 0.75rem; color: var(--text-muted); margin-top: 2px; }
.expense-amount { font-weight: 700; font-size: 1.1rem; font-variant-numeric: tabular-nums;}
.cat-icon { font-size: 1.5rem; width: 35px; text-align: center; }

.delete-btn { background-color: var(--danger-color); color: white; border: none; width: auto; padding: 0.4rem 0.8rem; font-size: 0.8rem; margin: 0 0 0 0.5rem; border-radius: 8px; cursor: pointer;}
.edit-btn { background-color: var(--primary-color); color: white; border: none; width: auto; padding: 0.4rem 0.8rem; font-size: 0.8rem; margin: 0 0 0 0.5rem; border-radius: 8px; cursor: pointer;}
.actions-row { display: flex; align-items: center; }
.btn-secundario { background-color: transparent; border: 2px solid var(--border-color); color: var(--primary-color); width: 100%; padding: 1rem; border-radius: 12px; font-weight: 700; cursor: pointer; margin-top: 10px; transition: background-color 0.2s, border-color 0.2s, opacity 0.2s;}
.btn-secundario:hover { border-color: var(--primary-color); background-color: var(--primary-gradient); }
.btn-secundario:active { opacity: 0.7; }
.btn-pequeno { padding: 0.5rem; font-size: 0.85rem; margin-bottom: 10px;}

.cat-breakdown { margin-bottom: 20px; }
.cat-bar-container { display: flex; align-items: center; margin-bottom: 8px; font-size: 0.85rem;}
.cat-bar-label { width: 30%; font-weight: 500; color: var(--text-muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.cat-bar-wrapper { width: 45%; background: var(--border-color); height: 8px; border-radius: 4px; margin: 0 10px; overflow: hidden;}
.cat-bar-fill { height: 100%; background: var(--primary-color); border-radius: 4px;}
.cat-bar-amount { width: 25%; text-align: right; font-weight: 700; font-variant-numeric: tabular-nums;}

/* Utility Classes */
.header-actions { display: flex; align-items: center; }
.lsim-desc { font-size: 0.85rem; color: var(--text-muted); margin-bottom: 20px; }
.mt-20 { margin-top: 20px; }
.mb-5 { margin-bottom: 5px; }
.mb-0 { margin-bottom: 0 !important; }
.nueva-cat-container { padding: 10px; border: 1px solid var(--border-color); border-radius: 12px; margin-top: 5px; }
.divider { border: 0; border-top: 1px solid var(--border-color); margin: 1.5rem 0; }
.flex-gap-mt20 { display: flex; gap: 10px; margin-top: 20px; }
.btn-danger-outline { width: 100%; margin: 10px 0 0 0; border-color: var(--danger-color); color: var(--danger-color); }
.btn-lsim { margin-top: 15px; border-color: var(--primary-color); }
.no-expenses-text { text-align: center; color: var(--text-muted); font-size: 0.85rem; }
.no-expenses-li { color: var(--text-muted) !important; justify-content: center !important; box-shadow: none !important; background: transparent !important; cursor: default !important; }
.hidden-file { display: none; }

/* Dark Mode Overrides */
@media (prefers-color-scheme: dark) {
    :root {
        --bg-color: #0f172a; 
        --surface-color: #1e293b; 
        --text-color: #f8fafc; 
        --text-muted: #94a3b8;
        --border-color: #334155; 
        --primary-color: #2DD4BF; 
        --primary-hover: #14B8A6;
        --primary-gradient: rgba(45, 212, 191, 0.12);
        --tab-bg: #134e4a;
        --shadow-color: rgb(0 0 0 / 0.2);
    }
    
    .header-app { background: rgba(30, 41, 59, 0.85); }

    .logo-light { 
        display: none; 
    }
    .logo-dark { 
        display: block; 
    }
}

/* Summary Card Styles */
.summary-card {
    background: var(--surface-color);
    border-radius: 16px;
    padding: 1.5rem;
    margin-top: 15px;
    box-shadow: 0 4px 6px -1px var(--shadow-color), 0 2px 4px -2px var(--shadow-color);
}
.summary-card h4 {
    margin: 0 0 15px 0;
    color: var(--primary-color);
    font-size: 1.2rem;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 10px;
}
.summary-row {
    display: flex;
    justify-content: space-between;
    margin-bottom: 10px;
    font-size: 0.95rem;
}
.summary-row:last-child {
    margin-bottom: 0;
}
.summary-label {
    color: var(--text-muted);
    font-weight: 500;
}
.summary-value {
    font-weight: 700;
    font-variant-numeric: tabular-nums;
}

/* --- UI/UX Enhancements --- */

/* Input Validation */
input:not(:placeholder-shown):invalid {
    border-color: var(--danger-color);
    background-color: rgba(239, 68, 68, 0.05);
}
input:not(:placeholder-shown):focus:invalid {
    outline: none;
    box-shadow: 0 0 0 2px rgba(239, 68, 68, 0.2);
}

/* Toast Notifications */
.toast-container {
    position: fixed;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 1000;
    display: flex;
    flex-direction: column;
    gap: 10px;
    pointer-events: none;
}
.toast {
    background-color: var(--text-color);
    color: var(--bg-color);
    padding: 12px 24px;
    border-radius: 30px;
    font-weight: 500;
    font-size: 0.9rem;
    box-shadow: 0 4px 12px var(--shadow-color);
    opacity: 0;
    transform: translateY(20px);
    animation: toast-enter 0.3s forwards, toast-exit 0.3s forwards 2.7s;
}
@keyframes toast-enter { to { opacity: 1; transform: translateY(0); } }
@keyframes toast-exit { to { opacity: 0; transform: translateY(-10px); } }

/* Empty State */
.empty-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 2rem 0;
    opacity: 0.5;
}
.empty-state-icon {
    font-size: 3rem;
    margin-bottom: 10px;
    filter: grayscale(100%);
}

/* --- LSim Visual Updates --- */

.input-destacado {
    font-size: 1.5rem;
    font-weight: 700;
    text-align: center;
    color: var(--primary-color);
    padding: 1rem;
}

.lsim-slider-group {
    background: var(--surface-color);
    padding: 15px;
    border-radius: 12px;
    border: 1px solid var(--border-color);
    margin-bottom: 15px;
}

.lsim-badge {
    background: var(--primary-gradient);
    color: var(--primary-color);
    padding: 2px 8px;
    border-radius: 6px;
    font-weight: 700;
    font-size: 0.9rem;
    font-variant-numeric: tabular-nums;
}

.lsim-helper {
    font-size: 0.75rem;
    color: var(--text-muted);
    margin-top: 8px;
    display: block;
}

.input-slider {
    -webkit-appearance: none;
    appearance: none;
    width: 100%;
    background: transparent;
    margin: 15px 0;
}

.input-slider:focus {
    outline: none;
}

/* --- WebKit (Chrome, Safari, iOS) --- */
.input-slider::-webkit-slider-runnable-track {
    width: 100%;
    height: 8px;
    cursor: pointer;
    background: linear-gradient(to right, var(--primary-color) var(--fill, 50%), var(--border-color) var(--fill, 50%));
    border-radius: 4px;
}

.input-slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    height: 20px;
    width: 32px; 
    border-radius: 10px;
    background: var(--surface-color);
    cursor: pointer;
    margin-top: -6px; 
    box-shadow: 0 2px 5px rgba(0,0,0,0.15), 0 0 1px rgba(0,0,0,0.1); 
    border: none; 
}

/* --- Firefox --- */
.input-slider::-moz-range-track {
    width: 100%;
    height: 8px;
    cursor: pointer;
    background: var(--border-color);
    border-radius: 4px;
}

.input-slider::-moz-range-progress {
    background-color: var(--primary-color);
    height: 8px;
    border-radius: 4px;
}

.input-slider::-moz-range-thumb {
    height: 20px;
    width: 32px;
    border-radius: 10px;
    background: var(--surface-color);
    cursor: pointer;
    box-shadow: 0 2px 5px rgba(0,0,0,0.15), 0 0 1px rgba(0,0,0,0.1);
    border: none;
    box-sizing: border-box;
}

.lsim-resultado-card {
    background: var(--surface-color);
    padding: 1.5rem;
    border-radius: 16px;
    box-shadow: 0 4px 6px -1px var(--shadow-color), 0 2px 4px -2px var(--shadow-color);
    margin-top: 20px;
}

.lsim-bar-row {
    display: flex;
    flex-direction: column;
    gap: 5px;
}

.lsim-bar-label {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-color);
}

.lsim-bar-track {
    width: 100%;
    height: 12px;
    background: var(--border-color);
    border-radius: 6px;
    overflow: hidden;
}

.lsim-bar-fill {
    height: 100%;
    border-radius: 6px;
    transition: width 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

.lsim-bar-fill.cost { background-color: var(--text-muted); }
.lsim-bar-fill.future { background-color: var(--danger-color); }

.lsim-bar-val {
    font-weight: 700;
    text-align: right;
    font-variant-numeric: tabular-nums;
    font-size: 0.9rem;
}

.lsim-bar-val.highlight {
    color: var(--danger-color);
    font-size: 1.1rem;
}

.lsim-summary-loss {
    margin-top: 20px;
    padding-top: 15px;
    border-top: 1px solid var(--border-color);
    text-align: center;
    font-size: 0.95rem;
    color: var(--text-muted);
}

.lsim-summary-loss strong {
    color: var(--danger-color);
    font-size: 1.2rem;
    display: block;
    margin: 8px 0;
}

/* Idea 9: Pace Sparkline */
.pace-label { 
    font-size: 0.65rem; 
    color: var(--text-muted); 
    text-transform: uppercase; 
    margin-top: 8px; 
    display: block; 
    letter-spacing: 0.5px;
}
.pace-sparkline-container { 
    width: 100%; 
    height: 4px; 
    background: var(--border-color); 
    border-radius: 2px; 
    margin-top: 4px; 
    overflow: hidden; 
}
.pace-sparkline-fill { 
    height: 100%; 
    transition: width 0.5s, background-color 0.3s; 
}
.pace-sparkline-fill.good { background: var(--success-color); }
.pace-sparkline-fill.bad { background: var(--danger-color); }

/* Idea 10: Zero-Spend Badge */
.zero-spend-badge { 
    font-size: 0.75rem; 
    color: #F59E0B; 
    font-weight: bold; 
    background: rgba(245, 158, 11, 0.1); 
    padding: 2px 8px; 
    border-radius: 12px; 
    display: inline-block; 
    margin-left: 8px; 
    border: 1px solid rgba(245, 158, 11, 0.2); 
}

/* --- Modo Privacidade --- */
.b-amount, .expense-amount, #display-lsim-resultado, #lsim-val-cost, #lsim-val-diff, #display-calculado, .cat-bar-amount {
    transition: filter 0.3s ease;
}

/* Aplica o blur quando a classe está ativa no body, EXCETO no limite diário */
body.privacy-mode .b-amount:not(#display-diario),
body.privacy-mode .expense-amount,
body.privacy-mode #display-lsim-resultado,
body.privacy-mode #lsim-val-cost,
body.privacy-mode #lsim-val-diff,
body.privacy-mode #display-calculado,
body.privacy-mode .cat-bar-amount {
    filter: blur(8px);
    user-select: none; 
    opacity: 0.8; 
}