:root {
    --bg-dark: #09090b;
    --panel-dark: #141417;
    --accent-copper: #c37647;
    --accent-copper-glow: rgba(195, 118, 71, 0.2);
    --text-main: #f4f4f5;
    --text-muted: #a1a1aa;
    --danger: #ef4444;
    --success: #10b981;
    --border: #27272a;
    --font-stack: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

* { box-sizing: border-box; margin: 0; padding: 0; user-select: none; -webkit-tap-highlight-color: transparent; }

body {
    background-color: var(--bg-dark);
    color: var(--text-main);
    font-family: var(--font-stack);
    -webkit-font-smoothing: antialiased;
    overflow: hidden;
}

.app-container {
    display: flex; flex-direction: column; height: 100vh;
    padding: env(safe-area-inset-top) 16px env(safe-area-inset-bottom) 16px;
    max-width: 600px; margin: 0 auto;
}

/* Cockpit */
.cockpit { text-align: center; padding: 20px 0; margin-bottom: 8px; }
.rav-label { display: block; color: var(--text-muted); font-size: 0.85rem; text-transform: uppercase; letter-spacing: 1px; font-weight: 600; }
.rav-value { font-size: 3.2rem; font-weight: 800; color: var(--accent-copper); text-shadow: 0 4px 20px var(--accent-copper-glow); margin: 6px 0; letter-spacing: -1px; }
.rav-status { font-size: 0.85rem; color: var(--text-muted); font-weight: 500; }

/* Metrics Grid */
.metrics-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin-bottom: 20px; }
.metric-card { background: var(--panel-dark); border: 1px solid var(--border); border-radius: 16px; padding: 14px; display: flex; flex-direction: column; }
.m-label { color: var(--text-muted); font-size: 0.72rem; margin-bottom: 6px; font-weight: 500; text-transform: uppercase; letter-spacing: 0.5px;}
.m-value { font-size: 1.25rem; font-weight: 600; }
.m-value.accent { color: var(--accent-copper); }

/* Progress */
.progress-section { margin-bottom: 20px; }
.progress-header { display: flex; justify-content: space-between; margin-bottom: 8px; font-weight: 600; font-size: 0.85rem; }
.p-percent { color: var(--accent-copper); }
.p-milestone { color: var(--text-muted); }
.progress-track { background: var(--border); height: 8px; border-radius: 4px; overflow: hidden; }
.progress-fill { background: linear-gradient(90deg, #8a4b27, var(--accent-copper)); height: 100%; width: 0%; border-radius: 4px; transition: width 1s cubic-bezier(0.16, 1, 0.3, 1); }

/* Analyseur de Flux Premium */
.flow-analytics { display: flex; gap: 8px; margin-bottom: 20px; }
.flow-card { flex: 1; background: #0e0e11; border: 1px solid var(--border); border-radius: 12px; padding: 12px; text-align: center; display: flex; flex-direction: column; gap: 4px; }
.flow-label { font-size: 0.7rem; text-transform: uppercase; color: var(--text-muted); font-weight: 600; letter-spacing: 0.5px; }
.flow-value { font-size: 1.05rem; font-weight: 700; }
.flow-card.inflow .flow-value { color: var(--success); }
.flow-card.outflow .flow-value { color: var(--text-main); opacity: 0.85; }
.flow-card.asset .flow-value { color: var(--accent-copper); }

/* History */
.history-section { flex: 1; overflow-y: auto; margin-bottom: 85px; }
.history-section::-webkit-scrollbar { display: none; }
.h-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 12px; border-bottom: 1px solid var(--border); padding-bottom: 12px;}
.h-header h3 { font-size: 0.95rem; font-weight: 600; text-transform: uppercase; letter-spacing: 0.5px; }
.h-balance { font-size: 0.85rem; color: var(--text-muted); font-weight: 500; }
.history-list { display: flex; flex-direction: column; gap: 10px; padding-bottom: 20px;}
.tx-item { display: flex; justify-content: space-between; align-items: center; background: var(--panel-dark); padding: 14px 16px; border-radius: 12px; border-left: 3px solid transparent; }
.tx-item.tx-income { border-left-color: var(--success); }
.tx-item.tx-expense { border-left-color: var(--border); }
.tx-item.tx-savings { border-left-color: var(--accent-copper); }
.tx-item.no-impact { opacity: 0.7; }
.tx-info { display: flex; flex-direction: column; }
.tx-note { font-size: 0.95rem; font-weight: 600; }
.tx-date { font-size: 0.75rem; color: var(--text-muted); margin-top: 4px; }
.tx-amount { font-weight: 700; font-size: 1.05rem; }
.tx-expense .tx-amount { color: var(--text-main); }
.tx-income .tx-amount { color: var(--success); }
.tx-savings .tx-amount { color: var(--accent-copper); }

/* Action Bar */
.action-bar { position: fixed; bottom: 0; left: 0; width: 100%; padding: 16px; padding-bottom: calc(16px + env(safe-area-inset-bottom)); display: flex; gap: 12px; background: rgba(9, 9, 11, 0.85); backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px); border-top: 1px solid var(--border); }
.btn-action { flex: 1; padding: 16px 0; border: none; border-radius: 14px; font-weight: 700; font-size: 0.95rem; transition: transform 0.1s ease; cursor: pointer; }
.btn-action:active { transform: scale(0.95); }
.btn-expense { background: var(--panel-dark); color: var(--text-main); border: 1px solid var(--border); }
.btn-income { background: rgba(16, 185, 129, 0.1); color: var(--success); border: 1px solid rgba(16, 185, 129, 0.2); }
.btn-save { background: var(--accent-copper); color: var(--bg-dark); box-shadow: 0 4px 15px var(--accent-copper-glow); }

/* Modal */
.modal { position: fixed; top: 0; left: 0; width: 100%; height: 100%; background: rgba(0, 0, 0, 0.8); backdrop-filter: blur(8px); -webkit-backdrop-filter: blur(8px); display: flex; align-items: flex-end; justify-content: center; opacity: 0; pointer-events: none; transition: opacity 0.3s ease; z-index: 100; }
.modal.active { opacity: 1; pointer-events: auto; }
.modal-content { background: var(--panel-dark); width: 100%; border-radius: 24px 24px 0 0; padding: 24px; padding-bottom: calc(24px + env(safe-area-inset-bottom)); transform: translateY(100%); transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1); border-top: 1px solid var(--border); }
.modal.active .modal-content { transform: translateY(0); }
.modal-content h2 { margin-bottom: 24px; font-size: 1.3rem; font-weight: 700; text-align: center;}
.modal-content input[type="number"], .modal-content input[type="text"], .modal-content input[type="date"] { width: 100%; background: var(--bg-dark); border: 1px solid var(--border); color: var(--text-main); padding: 18px; border-radius: 14px; margin-bottom: 16px; font-size: 1.05rem; outline: none; font-weight: 500; transition: border-color 0.2s;}
.modal-content input:focus { border-color: var(--accent-copper); }

/* Toggle Switch Premium */
.toggle-container { display: flex; justify-content: space-between; align-items: center; padding: 16px; background: var(--bg-dark); border-radius: 14px; border: 1px solid var(--border); margin-bottom: 24px; }
.toggle-label { font-size: 0.95rem; font-weight: 600; color: var(--text-main); }
.switch { position: relative; display: inline-block; width: 50px; height: 28px; }
.switch input { opacity: 0; width: 0; height: 0; }
.slider { position: absolute; cursor: pointer; top: 0; left: 0; right: 0; bottom: 0; background-color: var(--border); transition: .3s; border-radius: 28px; }
.slider:before { position: absolute; content: ""; height: 20px; width: 20px; left: 4px; bottom: 4px; background-color: var(--text-muted); transition: .3s; border-radius: 50%; }
input:checked + .slider { background-color: var(--accent-copper); }
input:checked + .slider:before { transform: translateX(22px); background-color: var(--bg-dark); }

.modal-actions { display: flex; gap: 12px; }
.btn-cancel, .btn-confirm { flex: 1; padding: 18px; border-radius: 14px; border: none; font-weight: 700; font-size: 1.05rem; cursor: pointer; }
.btn-cancel { background: transparent; color: var(--text-muted); border: 1px solid var(--border); }
.btn-confirm { background: var(--accent-copper); color: var(--bg-dark); }