* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    background: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);
    color: #e0e0e0;
    min-height: 100vh;
    padding: 20px;
}

.container {
    max-width: 1000px;
    margin: 0 auto;
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(10px);
    border-radius: 12px;
    padding: 40px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
}

header {
    text-align: center;
    margin-bottom: 40px;
}

header h1 {
    font-size: 2.5em;
    margin-bottom: 10px;
    background: linear-gradient(135deg, #00d4ff, #0099ff);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

header p {
    font-size: 1.1em;
    color: #a0a0a0;
}

.controls {
    display: flex;
    gap: 15px;
    justify-content: center;
    margin-bottom: 30px;
    flex-wrap: wrap;
}

.btn {
    padding: 12px 24px;
    font-size: 1em;
    border: 2px solid #00d4ff;
    background: transparent;
    color: #00d4ff;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s ease;
    font-weight: 600;
}

.btn:hover {
    background: rgba(0, 212, 255, 0.1);
    transform: translateY(-2px);
}

.btn-active {
    background: linear-gradient(135deg, #00d4ff, #0099ff);
    color: #1a1a2e;
    border-color: #00d4ff;
}

.btn-active:hover {
    box-shadow: 0 5px 20px rgba(0, 212, 255, 0.4);
}

.btn-apply {
    min-width: 100px;
}

.custom-range {
    display: flex;
    gap: 15px;
    justify-content: center;
    align-items: center;
    margin-bottom: 30px;
    flex-wrap: wrap;
    background: rgba(0, 212, 255, 0.05);
    padding: 20px;
    border-radius: 8px;
    border: 1px solid rgba(0, 212, 255, 0.2);
}

.custom-range label {
    display: flex;
    align-items: center;
    gap: 8px;
    color: #e0e0e0;
    font-weight: 500;
}

.custom-range input[type="date"] {
    background: rgba(0, 212, 255, 0.1);
    border: 1px solid rgba(0, 212, 255, 0.3);
    color: #e0e0e0;
    padding: 10px 12px;
    border-radius: 6px;
    font-size: 0.95em;
    cursor: pointer;
}

.custom-range input[type="date"]:focus {
    outline: none;
    border-color: rgba(0, 212, 255, 0.8);
    background: rgba(0, 212, 255, 0.15);
    box-shadow: 0 0 8px rgba(0, 212, 255, 0.2);
}

.stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
    margin-bottom: 40px;
}

.stat-card {
    background: rgba(0, 212, 255, 0.1);
    border: 1px solid rgba(0, 212, 255, 0.3);
    border-radius: 8px;
    padding: 20px;
    text-align: center;
    transition: all 0.3s ease;
}

.stat-card:hover {
    background: rgba(0, 212, 255, 0.15);
    border-color: rgba(0, 212, 255, 0.6);
    transform: translateY(-4px);
}

.stat-label {
    display: block;
    font-size: 0.9em;
    color: #a0a0a0;
    margin-bottom: 8px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.stat-value {
    display: block;
    font-size: 1.8em;
    font-weight: bold;
    color: #00d4ff;
}

.stat-value.positive {
    color: #4ade80;
}

.stat-value.negative {
    color: #f87171;
}

.portfolio-calc {
    background: rgba(0, 212, 255, 0.05);
    border: 1px solid rgba(0, 212, 255, 0.2);
    border-radius: 8px;
    padding: 20px;
    margin-bottom: 40px;
}

.section-title {
    font-size: 1.3em;
    font-weight: 600;
    color: #00d4ff;
    margin-bottom: 20px;
    text-align: left;
}

.calc-row {
    display: flex;
    gap: 20px;
    justify-content: space-between;
    align-items: flex-end;
    margin-bottom: 20px;
    flex-wrap: wrap;
}

.calc-label {
    display: flex;
    flex-direction: column;
    gap: 8px;
    color: #e0e0e0;
    font-weight: 500;
    flex: 1;
    min-width: 200px;
}

.calc-label input[type="number"] {
    background: rgba(0, 212, 255, 0.1);
    border: 1px solid rgba(0, 212, 255, 0.3);
    color: #e0e0e0;
    padding: 10px 12px;
    border-radius: 6px;
    font-size: 0.95em;
    font-weight: 500;
}

.calc-label input[type="number"]:focus {
    outline: none;
    border-color: rgba(0, 212, 255, 0.8);
    background: rgba(0, 212, 255, 0.15);
    box-shadow: 0 0 8px rgba(0, 212, 255, 0.2);
}

.calc-label input[type="number"]::placeholder {
    color: #707070;
}

.currency-toggle {
    display: flex;
    gap: 10px;
}

.currency-btn {
    padding: 10px 20px;
    font-size: 0.9em;
}

.portfolio-result {
    background: rgba(0, 212, 255, 0.08);
    border: 1px solid rgba(0, 212, 255, 0.3);
    border-radius: 8px;
    padding: 25px;
    text-align: center;
    display: flex;
    flex-direction: column;
    gap: 12px;
    align-items: center;
    justify-content: center;
    min-height: 80px;
    color: #a0a0a0;
    font-weight: 500;
}

.portfolio-result .amount {
    display: block;
    font-size: 2em;
    font-weight: 700;
    color: #00d4ff;
    letter-spacing: 0.5px;
}

.portfolio-result .amount-detail {
    display: block;
    font-size: 0.85em;
    color: #707070;
    font-weight: 400;
}

.alerts-section {
    background: rgba(0, 212, 255, 0.05);
    border: 1px solid rgba(0, 212, 255, 0.2);
    border-radius: 8px;
    padding: 20px;
    margin-bottom: 40px;
}

.alert-form {
    display: flex;
    gap: 20px;
    justify-content: space-between;
    align-items: flex-end;
    margin-bottom: 20px;
    flex-wrap: wrap;
}

.condition-toggle {
    display: flex;
    gap: 10px;
}

.btn-set-alert {
    background: linear-gradient(135deg, #4ade80, #22c55e);
    border-color: #4ade80;
    color: #1a1a2e;
    min-width: 120px;
}

.btn-set-alert:hover {
    box-shadow: 0 5px 20px rgba(74, 222, 128, 0.4);
}

.alerts-table {
    background: rgba(0, 212, 255, 0.08);
    border: 1px solid rgba(0, 212, 255, 0.3);
    border-radius: 8px;
    padding: 15px;
}

.alert-row {
    display: flex;
    gap: 15px;
    align-items: center;
    padding: 12px;
    background: rgba(0, 0, 0, 0.2);
    border-radius: 6px;
    margin-bottom: 10px;
    flex-wrap: wrap;
}

.alert-row:last-child {
    margin-bottom: 0;
}

.alert-row span {
    flex: 1;
    min-width: 150px;
    color: #e0e0e0;
    font-size: 0.9em;
}

.badge {
    padding: 4px 10px;
    border-radius: 4px;
    font-size: 0.8em;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.badge-active {
    background: rgba(0, 212, 255, 0.3);
    color: #00d4ff;
}

.badge-sent {
    background: rgba(74, 222, 128, 0.3);
    color: #4ade80;
}

.btn-delete {
    padding: 6px 12px;
    font-size: 0.85em;
    background: rgba(248, 113, 113, 0.2);
    border: 1px solid rgba(248, 113, 113, 0.5);
    color: #f87171;
    border-radius: 4px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.btn-delete:hover {
    background: rgba(248, 113, 113, 0.3);
    border-color: #f87171;
}

.btn-reactivate {
    padding: 6px 12px;
    font-size: 0.85em;
    background: rgba(74, 222, 128, 0.2);
    border: 1px solid rgba(74, 222, 128, 0.5);
    color: #4ade80;
    border-radius: 4px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.btn-reactivate:hover {
    background: rgba(74, 222, 128, 0.3);
    border-color: #4ade80;
}

#chart {
    background: rgba(255, 255, 255, 0.02);
    border-radius: 8px;
    border: 1px solid rgba(0, 212, 255, 0.2);
    padding: 20px;
}

@media (max-width: 768px) {
    .container {
        padding: 20px;
    }

    header h1 {
        font-size: 1.8em;
    }

    .stats {
        grid-template-columns: repeat(2, 1fr);
    }

    .controls {
        flex-direction: column;
    }

    .btn {
        width: 100%;
    }
}