/* (h)old - Main Styles */

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    -webkit-tap-highlight-color: transparent;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background: #f8f9fa;
    min-height: 100vh;
    padding: 0;
    margin: 0;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 40px 20px;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    color: #2d3748;
}

p {
    color: #4a5568;
    line-height: 1.6;
}

/* Navigation */
.top-nav {
    background: white;
    padding: 20px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
    position: sticky;
    top: 0;
    z-index: 100;
}

.top-nav-content {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 1.8rem;
    font-weight: 700;
    color: #2d3748;
}

.logo span {
    color: #667eea;
}

.nav-buttons {
    display: flex;
    gap: 15px;
    align-items: center;
    flex-wrap: wrap;
}

.nav-btn {
    background: transparent;
    border: none;
    padding: 8px 16px;
    cursor: pointer;
    font-size: 0.95rem;
    color: #4a5568;
    transition: all 0.2s;
    border-radius: 8px;
}

.nav-btn:hover, .nav-btn:active {
    background: #f7fafc;
    color: #667eea;
}

.nav-btn-primary {
    background: #667eea;
    color: white;
}

.nav-btn-primary:hover, .nav-btn-primary:active {
    background: #5568d3;
}

/* Cards */
.card {
    background: white;
    border-radius: 16px;
    padding: 40px;
    box-shadow: 0 2px 20px rgba(0,0,0,0.06);
    margin-bottom: 20px;
}

/* Buttons */
.btn {
    background: #667eea;
    color: white;
    border: none;
    padding: 12px 24px;
    border-radius: 10px;
    font-size: 0.95rem;
    cursor: pointer;
    transition: all 0.2s;
    margin-right: 10px;
    font-weight: 500;
}

.btn:hover {
    background: #5568d3;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.3);
}

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

.btn-secondary {
    background: #e2e8f0;
    color: #4a5568;
}

.btn-secondary:hover {
    background: #cbd5e0;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.btn-secondary:active {
    background: #cbd5e0;
}

/* Forms */
.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    color: #333;
}

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 12px;
    border: 2px solid #e0e0e0;
    border-radius: 8px;
    font-size: 1rem;
    transition: border-color 0.3s;
    font-family: inherit;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: #667eea;
}

/* Utilities */
.hidden {
    display: none !important;
}

.text-center {
    text-align: center;
}

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

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

/* Empty States */
.empty-state {
    text-align: center;
    padding: 60px 20px;
    color: #6c757d;
}

.empty-state-icon {
    font-size: 4rem;
    margin-bottom: 20px;
}

/* Responsive */
@media (max-width: 768px) {
    .container {
        padding: 20px 15px;
    }
    
    .card {
        padding: 25px;
    }
    
    .nav-buttons {
        flex-wrap: wrap;
    }

    .top-nav-content {
        flex-wrap: wrap;
        gap: 15px;
    }
}

/* Loading States */
.loading {
    pointer-events: none;
    opacity: 0.6;
}

.spinner {
    border: 4px solid rgba(255,255,255,0.3);
    border-top: 4px solid white;
    border-radius: 50%;
    width: 50px;
    height: 50px;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}