:root {
    --primary: #2ecc71;
    --primary-dark: #27ae60;
    --secondary: #2c3e50;
    --accent: #9acd32;
    --bg-light: #f8fafc;
    --text-main: #1e293b;
    --text-muted: #64748b;
    --sidebar-grad: linear-gradient(135deg, #1e293b 0%, #0f172a 100%);
    --card-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.05), 0 8px 10px -6px rgba(0, 0, 0, 0.05);
    --input-focus: rgba(46, 204, 113, 0.15);
}

body {
    background-color: var(--bg-light);
    color: var(--text-main);
    font-family: 'Inter', sans-serif;
    -webkit-font-smoothing: antialiased;
}

/* Sidebar Styling */
.sidebar {
    background: var(--sidebar-grad);
    position: relative;
    overflow: hidden;
}

.sidebar::before {
    content: "";
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(46, 204, 113, 0.05) 0%, transparent 70%);
    pointer-events: none;
}

.sidebar-content {
    position: relative;
    z-index: 2;
}

/* Card & Container */
.main-card {
    background: #ffffff;
    border: 1px solid rgba(226, 232, 240, 0.8);
    box-shadow: var(--card-shadow);
    transition: transform 0.3s ease;
}

/* Step Animations */
.step {
    animation: slideIn 0.5s cubic-bezier(0.16, 1, 0.3, 1);
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateX(20px);
    }

    to {
        opacity: 1;
        transform: translateX(0);
    }
}

/* Inputs & Form Elements */
.form-control,
.form-select {
    padding: 0.75rem 1rem;
    border: 2px solid #e2e8f0;
    border-radius: 12px !important;
    transition: all 0.2s ease;
    font-weight: 500;
}

.form-control:focus,
.form-select:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 4px var(--input-focus);
    background-color: #fff;
}

.form-label {
    font-weight: 600;
    font-size: 0.9rem;
    color: var(--secondary);
    margin-bottom: 0.5rem;
}

/* Progress Bar */
.progress {
    background-color: #f1f5f9;
    border-radius: 20px;
    overflow: hidden;
}

.progress-bar {
    background: linear-gradient(90deg, var(--primary) 0%, var(--accent) 100%);
    border-radius: 20px;
    box-shadow: 0 2px 4px rgba(46, 204, 113, 0.2);
}

/* Buttons */
.btn-success {
    background-color: var(--primary);
    border: none;
    padding: 0.8rem 2rem;
    border-radius: 12px;
    font-weight: 700;
    letter-spacing: 0.3px;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.btn-success:hover {
    background-color: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 10px 15px -3px rgba(46, 204, 113, 0.3);
}

.btn-outline-secondary {
    border: 2px solid #e2e8f0;
    padding: 0.8rem 2rem;
    border-radius: 12px;
    font-weight: 600;
    color: var(--text-muted);
}

.btn-outline-secondary:hover {
    background-color: #f8fafc;
    border-color: #cbd5e1;
    color: var(--secondary);
}

/* Result Screen Specifics */
.result-box {
    background: linear-gradient(135deg, rgba(46, 204, 113, 0.05) 0%, rgba(154, 205, 50, 0.05) 100%);
    border: 2px dashed rgba(46, 204, 113, 0.2);
}

.icon-circle {
    width: 48px;
    height: 48px;
    background: white;
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.4rem;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    border: 1px solid #f1f5f9;
}

.tip-card {
    border-radius: 16px;
    transition: all 0.3s ease;
    border: 1px solid transparent;
}

.tip-card:hover {
    background: white !important;
    border-color: #e2e8f0;
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.05);
    transform: translateY(-4px);
}

/* Custom Checkbox/Switch */
.form-check-input:checked {
    background-color: var(--primary);
    border-color: var(--primary);
}

/* Responsive Tweaks */
@media (max-width: 991.98px) {
    .sidebar {
        min-height: auto !important;
        padding: 3rem 1rem !important;
    }
}