/* Main Styles */
:root {
    --primary-color: #0c54a0;
    --secondary-color: #007f98;
    --accent-color: #12b5cb;
    --light-color: #f6f9fc;
    --dark-color: #112046;
    --border-color: #e0e0e0;
    --success-color: #28c165;
    --hover-color: #0a4585;
    --input-focus: rgba(12, 84, 160, 0.2);
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    transition: all 0.2s ease;
}

body {
    font-family: 'Inter', 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: var(--light-color);
    padding: 20px;
    min-height: 100vh;
    background: linear-gradient(135deg, #f6f9fc 0%, #e9f2f9 100%);
}

.container {
    max-width: 1000px;
    margin: 0 auto;
    background-color: white;
    border-radius: 12px;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.12);
    overflow: hidden;
}

h1 {
    text-align: center;
    color: var(--primary-color);
    margin: 30px 0;
    font-weight: 700;
    font-size: 2.2rem;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.05);
    letter-spacing: -0.5px;
}

h2 {
    color: var(--dark-color);
    margin-bottom: 20px;
    font-size: 1.5rem;
    font-weight: 600;
    letter-spacing: -0.3px;
}

/* Plan Selector */
.plan-selector {
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 20px 15px;
    background: linear-gradient(to bottom, #f8fafc, #f1f5f9);
    border-bottom: 1px solid var(--border-color);
    flex-wrap: wrap;
    gap: 15px;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
}

.plan-btn {
    background-color: white;
    border: 1px solid var(--border-color);
    padding: 12px 28px;
    border-radius: 30px;
    cursor: pointer;
    font-size: 1.05rem;
    font-weight: 600;
    transition: all 0.2s ease;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.04);
}

.plan-btn:hover {
    background-color: #f8f9fb;
    box-shadow: 0 3px 6px rgba(0, 0, 0, 0.08);
    transform: translateY(-1px);
}

.plan-btn.active {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    border-color: var(--primary-color);
    box-shadow: 0 4px 10px rgba(12, 84, 160, 0.3);
}

.currency-toggle {
    margin-left: 20px;
    display: flex;
    gap: 10px;
    padding: 6px 16px;
    background-color: white;
    border-radius: 30px;
    border: 1px solid var(--border-color);
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.04);
}

/* Calculator Layout */
.calculator {
    padding: 40px;
}

.section {
    margin-bottom: 40px;
    padding: 25px;
    background-color: #f9f9f9;
    border-radius: 12px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
    border: 1px solid rgba(0, 0, 0, 0.03);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.section:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.06);
}

.form-group {
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    position: relative;
}

.form-group label {
    flex: 1;
    min-width: 200px;
    font-weight: 500;
    color: #445;
    transition: color 0.2s ease;
}

.form-group:hover label {
    color: var(--primary-color);
}

.form-group input[type="number"],
.form-group select {
    padding: 12px 14px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    width: 200px;
    font-size: 1rem;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.03);
    transition: all 0.2s ease;
}

.form-group input[type="number"]:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px var(--input-focus);
}

.form-group input[type="number"]:hover,
.form-group select:hover {
    border-color: #aab;
}

.checkbox-group {
    display: flex;
    align-items: center;
}

.checkbox-group label {
    display: flex;
    align-items: center;
    cursor: pointer;
}

.checkbox-group input[type="checkbox"] {
    margin-right: 10px;
    width: 20px;
    height: 20px;
    cursor: pointer;
    accent-color: var(--primary-color);
}

.fee-display {
    font-weight: 600;
    min-width: 120px;
    text-align: right;
    margin-left: 20px;
    color: var(--primary-color);
    padding: 8px 12px;
    background-color: rgba(12, 84, 160, 0.06);
    border-radius: 6px;
}

/* Input Controls */
.input-with-controls {
    display: flex;
    align-items: center;
}

.controls {
    display: flex;
    margin-left: 10px;
}

.control-btn {
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: white;
    border: 1px solid var(--border-color);
    cursor: pointer;
    font-size: 1.2rem;
    font-weight: bold;
    transition: all 0.15s ease;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.04);
}

.control-btn:first-child {
    border-radius: 8px 0 0 8px;
}

.control-btn:last-child {
    border-radius: 0 8px 8px 0;
}

.control-btn:hover {
    background-color: var(--primary-color);
    color: white;
}

.control-btn:active {
    transform: scale(0.95);
}

/* Device Management */
.device-management-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 30px;
}

.device-management-header h3 {
    margin: 0;
    color: var(--dark-color);
    font-size: 1.3rem;
    font-weight: 600;
    letter-spacing: -0.3px;
}

.primary-btn {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    border: none;
    padding: 10px 20px;
    border-radius: 8px;
    cursor: pointer;
    font-weight: 600;
    transition: all 0.3s ease;
    box-shadow: 0 3px 8px rgba(12, 84, 160, 0.2);
    display: flex;
    align-items: center;
    gap: 8px;
}

.primary-btn:hover {
    box-shadow: 0 5px 12px rgba(12, 84, 160, 0.3);
    transform: translateY(-1px);
}

.primary-btn:active {
    transform: translateY(1px);
    box-shadow: 0 2px 5px rgba(12, 84, 160, 0.2);
}

.device-card {
    background-color: white;
    border: 1px solid rgba(0, 0, 0, 0.05);
    border-radius: 10px;
    margin-bottom: 20px;
    overflow: hidden;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.05);
    transition: all 0.3s ease;
}

.device-card:hover {
    box-shadow: 0 8px 15px rgba(0, 0, 0, 0.08);
    transform: translateY(-2px);
}

.device-header {
    background: linear-gradient(to right, #f2f6fc, #eef3fa);
    padding: 14px 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
}

.device-title {
    font-weight: 600;
    color: var(--dark-color);
    font-size: 1.1rem;
}

.remove-device-btn {
    background: rgba(255, 255, 255, 0.7);
    border: none;
    color: #9da9b9;
    font-size: 16px;
    cursor: pointer;
    padding: 4px 8px;
    border-radius: 50%;
    line-height: 1;
    transition: all 0.2s ease;
}

.remove-device-btn:hover {
    color: #e74c3c;
    background: white;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
}

.device-content {
    padding: 20px;
}

.service-levels {
    background-color: #f8fafc;
    padding: 18px;
    border-radius: 8px;
    margin: 15px 0;
    border: 1px solid rgba(0, 0, 0, 0.03);
    box-shadow: inset 0 1px 3px rgba(0, 0, 0, 0.02);
}

.service-levels .form-group {
    margin-bottom: 14px;
}

.device-fee {
    display: flex;
    justify-content: space-between;
    padding: 15px 0;
    font-weight: 600;
    border-top: 1px dashed rgba(0, 0, 0, 0.08);
    margin-top: 15px;
    color: #445;
}

.device-fee-value {
    color: var(--primary-color);
    font-size: 1.1rem;
    padding: 5px 12px;
    background-color: rgba(12, 84, 160, 0.06);
    border-radius: 6px;
}

.device-summary {
    background: linear-gradient(to right, #f2f6fc, #eef3fa);
    padding: 20px;
    border-radius: 10px;
    margin-top: 25px;
    margin-bottom: 35px;
    border: 1px solid rgba(0, 0, 0, 0.03);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
}

/* Totals Section */
.totals {
    background: linear-gradient(145deg, var(--dark-color), #0a1837);
    color: white;
    padding: 25px 30px;
    border-radius: 12px;
    margin-top: 40px;
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
    transform: translateY(0);
    transition: transform 0.3s ease, box-shadow 0.3s ease, background-position 0.5s ease;
    background-size: 200% 200%;
    background-position: 0% 0%;
}

.totals:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 30px rgba(0, 0, 0, 0.2);
}

.totals.updating {
    background-position: 100% 100%;
    animation: pulse 0.5s ease;
}

@keyframes pulse {
    0% {
        box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
    }
    50% {
        box-shadow: 0 8px 30px rgba(18, 181, 203, 0.25);
    }
    100% {
        box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
    }
}

.total-row {
    display: flex;
    justify-content: space-between;
    padding: 15px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.12);
    transition: all 0.2s ease;
}

.total-row:hover {
    background-color: rgba(255, 255, 255, 0.03);
}

.total-row:last-child {
    border-bottom: none;
}

.grand-total {
    font-size: 1.5rem;
    font-weight: 700;
    padding-top: 20px;
    background: linear-gradient(90deg, var(--accent-color), #2acbdd);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-fill-color: transparent;
    letter-spacing: -0.5px;
}

.total-value {
    font-weight: 700;
    font-size: 1.1rem;
}

.grand-total .total-value {
    font-size: 1.6rem;
}

/* Discount Controls */
.discount-controls {
    display: flex;
    align-items: center;
    gap: 12px;
}

.discount-type-toggle {
    display: flex;
    gap: 8px;
    background: rgba(255, 255, 255, 0.1);
    padding: 4px 8px;
    border-radius: 20px;
}

.discount-type-toggle label {
    display: flex;
    align-items: center;
    gap: 4px;
    cursor: pointer;
    font-size: 0.9rem;
    user-select: none;
}

.discount-type-toggle input[type="radio"] {
    margin: 0;
    accent-color: var(--accent-color);
}

.discount-input {
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    color: white;
    border-radius: 4px;
    padding: 6px 10px;
    width: 70px;
    font-size: 0.9rem;
}

.discount-input:focus {
    outline: none;
    border-color: var(--accent-color);
    box-shadow: 0 0 0 2px rgba(18, 181, 203, 0.3);
}

.discount-value {
    font-weight: 600;
    color: #ff8c66;
    font-size: 1.1rem;
    min-width: 80px;
    text-align: right;
}

/* Responsive Styles */
@media (max-width: 768px) {
    .form-group {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .form-group label {
        margin-bottom: 10px;
    }
    
    .fee-display {
        margin-left: 0;
        margin-top: 10px;
        align-self: flex-end;
    }
    
    .input-with-controls {
        margin-top: 5px;
        width: 100%;
    }

    .form-group input[type="number"],
    .form-group select {
        width: 100%;
    }
    
    .plan-selector {
        flex-direction: column;
        gap: 12px;
    }
    
    .currency-toggle {
        margin-left: 0;
        margin-top: 10px;
    }
    
    .calculator {
        padding: 20px;
    }
    
    .section {
        padding: 20px 15px;
    }
    
    .totals {
        padding: 20px;
    }
    
    .discount-controls {
        flex-direction: column;
        align-items: flex-start;
        gap: 8px;
    }
    
    .discount-input {
        width: 100%;
    }
    
    .discount-value {
        align-self: flex-end;
    }
}