/* ProMarketer 3.0 - Clean & Professional Enterprise Theme */
:root {
    --primary-blue: #0d6efd;
    /* Enterprise Blue */
    --primary-dark: #212529;
    /* Dark Gray */
    --secondary-gray: #6c757d;
    /* Medium Gray */
    --bg-light: #f8f9fa;
    /* Light Gray Background */
    --bg-white: #ffffff;
    /* White Background */
    --border-color: #dee2e6;
    /* Light Border */
    --success-green: #198754;
    /* Success Green */
    --text-main: #212529;
    /* Main Text */
    --shadow-sm: 0 0.125rem 0.25rem rgba(0, 0, 0, 0.075);
    --shadow-md: 0 0.5rem 1rem rgba(0, 0, 0, 0.15);
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background-color: var(--bg-light);
    color: var(--text-main);
    line-height: 1.6;
}

/* Typography */
h1,
h2,
h3,
h4,
h5,
h6 {
    font-weight: 700;
    letter-spacing: -0.5px;
    margin-bottom: 0.5rem;
}

.display-4 {
    font-weight: 800;
}

/* Clean Header */
.clean-header {
    background-color: var(--bg-white);
    border-bottom: 1px solid var(--border-color);
    box-shadow: var(--shadow-sm);
    padding: 3rem 0;
    margin-bottom: 3rem;
}

/* Card Styles */
.campaign-card {
    background: var(--bg-white);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 1.5rem;
    height: 100%;
    transition: all 0.2s ease-in-out;
    cursor: pointer;
    position: relative;
    overflow: hidden;
}

.campaign-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
    border-color: var(--primary-blue);
}

.campaign-card.selected {
    border-color: var(--primary-blue);
    background-color: #f0f7ff;
    box-shadow: 0 0 0 4px rgba(13, 110, 253, 0.15);
}

.campaign-icon {
    font-size: 2rem;
    margin-bottom: 1rem;
    color: var(--primary-dark);
}

.campaign-specs {
    background-color: var(--bg-light);
    border-radius: 8px;
    padding: 0.8rem;
    margin-top: 1rem;
    font-size: 0.85rem;
    border: 1px solid var(--border-color);
    color: var(--secondary-gray);
}

/* Forms */
.form-control,
.form-select {
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 0.75rem 1rem;
    font-size: 1rem;
    transition: border-color 0.15s ease-in-out, box-shadow 0.15s ease-in-out;
}

.form-control:focus,
.form-select:focus {
    border-color: var(--primary-blue);
    box-shadow: 0 0 0 4px rgba(13, 110, 253, 0.15);
}

.form-label {
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--primary-dark);
}

/* Buttons */
.btn {
    padding: 0.75rem 1.5rem;
    font-weight: 600;
    border-radius: 8px;
    transition: all 0.2s;
}

.btn-primary {
    background-color: var(--primary-blue);
    border-color: var(--primary-blue);
}

.btn-primary:hover {
    background-color: #0b5ed7;
    border-color: #0a58ca;
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(13, 110, 253, 0.25);
}

/* Generation Modal - Clean */
.generation-modal {
    border-radius: 16px;
    border: none;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
}

.generation-header {
    background-color: var(--bg-white);
    border-bottom: 1px solid var(--border-color);
    padding: 1.5rem;
    border-radius: 16px 16px 0 0;
}

.generation-body {
    background-color: var(--bg-light);
    padding: 2rem;
    border-radius: 0 0 16px 16px;
}

.step {
    background: var(--bg-white);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    padding: 1rem;
    margin-bottom: 0.75rem;
    display: flex;
    align-items: center;
    gap: 1rem;
    opacity: 0.5;
    transition: all 0.3s;
}

.step.active {
    opacity: 1;
    border-color: var(--primary-blue);
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
}

.step.completed {
    opacity: 1;
    border-color: var(--success-green);
    background-color: #f0fff4;
}

.step-icon {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: var(--bg-light);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.875rem;
}

.step.active .step-icon {
    background: var(--primary-blue);
    color: white;
}

.step.completed .step-icon {
    background: var(--success-green);
    color: white;
}

/* Campaign Items (Batch) */
.campaign-item {
    background: var(--bg-white);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    margin-bottom: 1rem;
    transition: all 0.2s;
}

.campaign-item:hover {
    box-shadow: var(--shadow-sm);
    border-color: var(--primary-blue);
}

/* Utilities */
.text-muted {
    color: var(--secondary-gray) !important;
}

.bg-light {
    background-color: var(--bg-light) !important;
}

/* Responsive */
@media (max-width: 768px) {
    .clean-header {
        padding: 2rem 0;
    }

    .display-4 {
        font-size: 2.5rem;
    }
}