/* Atelier Tools - Base Template */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=Source+Code+Pro:wght@400;500&display=swap');

:root {
    --primary: #2563eb;
    --primary-hover: #1d4ed8;
    --secondary: #64748b;
    --surface: #f8fafc;
    --surface-hover: #f1f5f9;
    --border: #e2e8f0;
    --text: #1e293b;
    --text-muted: #64748b;
    --success: #059669;
    --warning: #d97706;
    --bg: #fafafa;
    --white: #ffffff;
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
    min-height: 100vh;
}

/* Navigation */
nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 2rem;
    background: var(--white);
    border-bottom: 1px solid var(--border);
}

.brand {
    font-size: 1.25rem;
    font-weight: 300;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    color: var(--primary);
    text-decoration: none;
}

.nav-link {
    color: var(--text-muted);
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 500;
}

.nav-link:hover { color: var(--primary); }

/* Container */
.container {
    max-width: 720px;
    margin: 0 auto;
    padding: 2rem;
}

/* Header */
header {
    text-align: center;
    margin-bottom: 2rem;
}

h1 {
    font-size: 1.75rem;
    font-weight: 600;
    color: var(--text);
    margin-bottom: 0.5rem;
    letter-spacing: -0.02em;
}

.tagline {
    color: var(--text-muted);
    font-size: 0.95rem;
}

/* Tool Area */
.tool-area {
    background: var(--white);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 2rem;
    margin-bottom: 2rem;
    box-shadow: 0 1px 3px rgba(0,0,0,0.05);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.75rem 1.5rem;
    border-radius: 8px;
    font-weight: 500;
    font-size: 0.95rem;
    cursor: pointer;
    transition: all 0.2s;
    border: none;
    font-family: inherit;
    text-decoration: none;
}

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

.btn-primary:hover {
    background: var(--primary-hover);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(37, 99, 235, 0.2);
}

.btn-secondary {
    background: var(--surface);
    color: var(--text);
    border: 1px solid var(--border);
}

.btn-secondary:hover {
    background: var(--surface-hover);
}

/* Inputs */
input[type="text"],
input[type="url"],
input[type="number"],
textarea,
select {
    width: 100%;
    padding: 0.75rem 1rem;
    background: var(--white);
    border: 1px solid var(--border);
    border-radius: 8px;
    font-size: 0.95rem;
    font-family: inherit;
    color: var(--text);
    margin-bottom: 1rem;
    transition: border-color 0.2s, box-shadow 0.2s;
}

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

input[type="range"] {
    width: 100%;
    accent-color: var(--primary);
}

label {
    display: block;
    font-weight: 500;
    color: var(--text);
    margin-bottom: 0.5rem;
    font-size: 0.9rem;
}

/* Control Group */
.control-group {
    margin-bottom: 1rem;
}

/* Premium CTA */
.premium-cta {
    background: linear-gradient(135deg, #2563eb 0%, #1d4ed8 100%);
    border-radius: 12px;
    padding: 2rem;
    text-align: center;
    color: white;
    margin-bottom: 2rem;
}

.premium-cta h2 {
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: white;
}

.premium-cta p {
    opacity: 0.9;
    margin-bottom: 1rem;
}

.btn-premium {
    background: white;
    color: var(--primary);
    font-weight: 600;
}

.btn-premium:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(0,0,0,0.2);
}

/* Footer */
footer {
    text-align: center;
    padding: 2rem;
    color: var(--text-muted);
    font-size: 0.875rem;
}

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

/* Badges */
.badge {
    display: inline-block;
    padding: 0.25rem 0.5rem;
    border-radius: 20px;
    font-size: 0.7rem;
    font-weight: 500;
    margin-left: 0.5rem;
    vertical-align: middle;
}

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

.badge-free {
    background: var(--surface);
    color: var(--secondary);
}

/* Modal */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.5);
    z-index: 1000;
    align-items: center;
    justify-content: center;
}

.modal-content {
    background: var(--white);
    padding: 2rem;
    border-radius: 12px;
    max-width: 400px;
    text-align: center;
    position: relative;
}

.modal-content h2 {
    margin-bottom: 0.5rem;
}

.modal-content p {
    color: var(--text-muted);
    margin-bottom: 1.5rem;
}

.close {
    position: absolute;
    top: 1rem;
    right: 1rem;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--text-muted);
}

/* Responsive */
@media (max-width: 640px) {
    .container { padding: 1rem; }
    .tool-area { padding: 1.5rem; }
    nav { padding: 1rem; }
}