/* KLIFGEN - Modern Minimalistic Design System */

:root {
    --primary: #2563eb;
    --primary-dark: #1d4ed8;
    --secondary: #64748b;
    --success: #059669;
    --warning: #d97706;
    --error: #dc2626;
    --background: #ffffff;
    --surface: #f8fafc;
    --surface-dark: #f1f5f9;
    --text-primary: #0f172a;
    --text-secondary: #64748b;
    --border: #e2e8f0;
    --border-dark: #cbd5e1;
    --shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 rgba(0, 0, 0, 0.06);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --radius: 8px;
    --radius-lg: 12px;
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--background);
    font-size: 16px;
}

/* Header */
.logo-bg {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    padding: 1rem 0;
    box-shadow: var(--shadow-md);
}

.logo-item {
    display: flex;
    align-items: center;
    justify-content: center;
    text-decoration: none;
}

.logo-item img {
    max-width: 180px;
    height: auto;
    filter: brightness(0) invert(1);
}

/* Navigation */
.menu-bar {
    background: var(--surface);
    border-bottom: 1px solid var(--border);
    padding: 1rem 0;
    margin-bottom: 2rem;
}

.menu-bar a {
    color: var(--text-primary);
    text-decoration: none;
    font-weight: 500;
    padding: 0.5rem 1rem;
    border-radius: var(--radius);
    transition: all 0.2s ease;
    display: inline-block;
}

.menu-bar a:hover {
    background-color: var(--primary);
    color: white;
    text-decoration: none;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

h1 { font-size: 2.5rem; }
h2 { font-size: 2rem; }
h3 { font-size: 1.5rem; }
h4 { font-size: 1.25rem; }
h5 { font-size: 1.125rem; }
h6 { font-size: 1rem; }

p {
    margin-bottom: 1rem;
    color: var(--text-secondary);
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, var(--surface) 0%, var(--surface-dark) 100%);
    padding: 4rem 0;
    text-align: center;
    border-radius: var(--radius-lg);
    margin-bottom: 3rem;
}

.hero h1 {
    font-size: 3rem;
    margin-bottom: 1rem;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero .subtitle {
    font-size: 1.25rem;
    color: var(--text-secondary);
    margin-bottom: 2rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

/* Cards */
.card {
    background: var(--background);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 1.5rem;
    box-shadow: var(--shadow);
    transition: all 0.3s ease;
}

.card:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-2px);
}

.card-header {
    border-bottom: 1px solid var(--border);
    padding-bottom: 1rem;
    margin-bottom: 1rem;
}

.card-title {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

/* Pricing Cards */
.pricing-card {
    background: var(--background);
    border: 2px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 2rem;
    text-align: center;
    transition: all 0.3s ease;
    position: relative;
}

.pricing-card:hover {
    border-color: var(--primary);
    box-shadow: var(--shadow-lg);
}

.pricing-card.featured {
    border-color: var(--primary);
    background: linear-gradient(135deg, var(--primary)/0.05 0%, var(--primary)/0.1 100%);
}

.pricing-card.featured::before {
    content: 'Most Popular';
    position: absolute;
    top: -10px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--primary);
    color: white;
    padding: 0.25rem 1rem;
    border-radius: var(--radius);
    font-size: 0.875rem;
    font-weight: 600;
}

.price {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 0.5rem;
}

.price-subtitle {
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
}

/* Comparison Table */
.comparison-table {
    background: var(--background);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow);
}

.comparison-table th,
.comparison-table td {
    padding: 1rem;
    text-align: left;
    border-bottom: 1px solid var(--border);
}

.comparison-table th {
    background: var(--surface);
    font-weight: 600;
    color: var(--text-primary);
}

.comparison-table tr:last-child td {
    border-bottom: none;
}

.comparison-table .highlight {
    background: linear-gradient(135deg, var(--success)/0.1 0%, var(--success)/0.2 100%);
    font-weight: 600;
    color: var(--success);
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    font-weight: 500;
    text-decoration: none;
    border-radius: var(--radius);
    transition: all 0.2s ease;
    border: none;
    cursor: pointer;
    font-size: 1rem;
    line-height: 1.5;
}

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

.btn-primary:hover {
    background: var(--primary-dark);
    color: white;
    text-decoration: none;
    transform: translateY(-1px);
}

.btn-secondary {
    background: var(--secondary);
    color: white;
}

.btn-secondary:hover {
    background: var(--text-secondary);
    color: white;
    text-decoration: none;
}

.btn-success {
    background: var(--success);
    color: white;
}

.btn-success:hover {
    background: #047857;
    color: white;
    text-decoration: none;
}

.btn-lg {
    padding: 1rem 2rem;
    font-size: 1.125rem;
}

.btn-sm {
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
}

/* Forms */
.form-group {
    margin-bottom: 1.5rem;
}

.form-label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: var(--text-primary);
}

.form-control {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    font-size: 1rem;
    transition: border-color 0.2s ease;
}

.form-control:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

/* Container Styles */
.container-style {
    background: var(--background);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 2rem;
    margin-bottom: 2rem;
    box-shadow: var(--shadow);
}

/* Alerts */
.alert {
    padding: 1rem;
    border-radius: var(--radius);
    margin-bottom: 1rem;
}

.alert-success {
    background: rgba(5, 150, 105, 0.1);
    border: 1px solid var(--success);
    color: var(--success);
}

.alert-warning {
    background: rgba(217, 119, 6, 0.1);
    border: 1px solid var(--warning);
    color: var(--warning);
}

.alert-error {
    background: rgba(220, 38, 38, 0.1);
    border: 1px solid var(--error);
    color: var(--error);
}

/* Utilities */
.text-center { text-align: center; }
.text-primary { color: var(--primary) !important; }
.text-success { color: var(--success) !important; }
.text-secondary { color: var(--text-secondary) !important; }

.mt-1 { margin-top: 0.25rem; }
.mt-2 { margin-top: 0.5rem; }
.mt-3 { margin-top: 1rem; }
.mt-4 { margin-top: 1.5rem; }
.mt-5 { margin-top: 3rem; }

.mb-1 { margin-bottom: 0.25rem; }
.mb-2 { margin-bottom: 0.5rem; }
.mb-3 { margin-bottom: 1rem; }
.mb-4 { margin-bottom: 1.5rem; }
.mb-5 { margin-bottom: 3rem; }

.p-0 { padding: 0; }
.p-1 { padding: 0.25rem; }
.p-2 { padding: 0.5rem; }
.p-3 { padding: 1rem; }
.p-4 { padding: 1.5rem; }
.p-5 { padding: 3rem; }

/* Responsive */
@media (max-width: 768px) {
    .hero h1 { font-size: 2rem; }
    .hero .subtitle { font-size: 1.125rem; }
    .price { font-size: 2rem; }
    .container-style { padding: 1rem; }
    .pricing-card { padding: 1.5rem; }
}

/* Footer */
.footer {
    background: var(--surface);
    border-top: 1px solid var(--border);
    padding: 2rem 0;
    margin-top: 4rem;
}

.footer a {
    color: var(--text-secondary);
    text-decoration: none;
}

.footer a:hover {
    color: var(--primary);
    text-decoration: none;
}

/* Feature Highlights */
.feature-list {
    list-style: none;
    padding: 0;
}

.feature-list li {
    padding: 0.5rem 0;
    color: var(--text-secondary);
    position: relative;
    padding-left: 1.5rem;
}

.feature-list li:before {
    content: '✓';
    color: var(--success);
    font-weight: bold;
    position: absolute;
    left: 0;
    top: 0.5rem;
}

/* Video Player Styles */
.video-container {
    position: relative;
    border-radius: var(--radius-lg);
    overflow: hidden;
    background: var(--surface);
    box-shadow: var(--shadow-md);
}

.video-container video {
    width: 100%;
    height: auto;
    display: block;
}