/* Frequencies Page Specific Styles */
.frequencies-main {
    padding-top: 80px;
    min-height: calc(100vh - 80px);
    background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
}

.frequencies-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 2rem;
}

/* Header Section */
.frequencies-header {
    text-align: center;
    margin-bottom: 3rem;
    background: white;
    border-radius: 12px;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
    padding: 3rem;
}

.frequencies-header h1 {
    color: var(--text-primary);
    margin-bottom: 1rem;
    font-family: 'Orbitron', monospace;
    font-size: 2.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
}

.frequencies-header p {
    color: var(--text-secondary);
    font-size: 1.1rem;
    max-width: 800px;
    margin: 0 auto;
}

/* Quick Navigation */
.quick-nav {
    background: white;
    border-radius: 12px;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
    padding: 2rem;
    margin-bottom: 2rem;
    text-align: center;
}

.quick-nav h3 {
    color: var(--text-primary);
    margin-bottom: 1.5rem;
    font-family: 'Orbitron', monospace;
}

.nav-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    justify-content: center;
}

.nav-btn {
    padding: 0.75rem 1.5rem;
    background: var(--light-bg);
    color: var(--text-primary);
    border: 2px solid var(--border-color);
    border-radius: 8px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    font-family: 'Orbitron', monospace;
}

.nav-btn:hover,
.nav-btn.active {
    background: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(30, 58, 138, 0.3);
}

/* Band Sections */
.band-section {
    background: white;
    border-radius: 12px;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
    padding: 2rem;
    margin-bottom: 2rem;
}

.band-section h2 {
    color: var(--text-primary);
    margin-bottom: 0.5rem;
    font-family: 'Orbitron', monospace;
    font-size: 1.75rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.section-description {
    color: var(--text-secondary);
    font-size: 1.1rem;
    margin-bottom: 2rem;
}

/* Frequency Tables */
.frequency-table {
    border-radius: 8px;
    overflow: hidden;
    border: 1px solid var(--border-color);
}

.table-header {
    display: grid;
    grid-template-columns: 0.8fr 1.5fr 1fr 1fr 2fr;
    background: var(--primary-color);
    color: white;
    font-weight: 600;
    padding: 1rem;
    font-family: 'Orbitron', monospace;
}

.table-row {
    display: grid;
    grid-template-columns: 0.8fr 1.5fr 1fr 1fr 2fr;
    padding: 1rem;
    border-bottom: 1px solid var(--border-color);
    transition: background-color 0.3s ease;
}

.table-row:nth-child(even) {
    background: var(--light-bg);
}

.table-row:hover {
    background: rgba(30, 58, 138, 0.05);
}

.table-row:last-child {
    border-bottom: none;
}

.col-band {
    font-weight: 600;
    color: var(--primary-color);
    font-family: 'Orbitron', monospace;
}

.col-freq {
    font-family: 'Orbitron', monospace;
    color: var(--text-primary);
}

.col-modes {
    color: var(--text-secondary);
}

.col-power {
    color: var(--text-secondary);
    font-weight: 500;
}

.col-notes {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* Operating Modes Section */
.modes-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
    margin-top: 2rem;
}

.mode-card {
    background: var(--light-bg);
    border-radius: 8px;
    padding: 1.5rem;
    border-left: 4px solid var(--primary-color);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.mode-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.1);
}

.mode-card h3 {
    color: var(--primary-color);
    margin-bottom: 1rem;
    font-family: 'Orbitron', monospace;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.mode-card p {
    color: var(--text-secondary);
    margin-bottom: 1rem;
    line-height: 1.6;
}

.mode-card ul {
    list-style: none;
    padding: 0;
}

.mode-card li {
    padding: 0.25rem 0;
    color: var(--text-secondary);
    position: relative;
    padding-left: 1.5rem;
}

.mode-card li::before {
    content: '•';
    color: var(--primary-color);
    font-weight: bold;
    position: absolute;
    left: 0;
}

/* Notes Section */
.notes-section {
    background: white;
    border-radius: 12px;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
    padding: 2rem;
    margin-top: 2rem;
}

.notes-section h2 {
    color: var(--text-primary);
    margin-bottom: 1.5rem;
    font-family: 'Orbitron', monospace;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.notes-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
}

.note-card {
    background: var(--light-bg);
    border-radius: 8px;
    padding: 1.5rem;
    border-left: 4px solid var(--warning-color);
}

.note-card h3 {
    color: var(--warning-color);
    margin-bottom: 1rem;
    font-family: 'Orbitron', monospace;
}

.note-card p {
    color: var(--text-secondary);
    line-height: 1.6;
}

/* Responsive Design */
@media (max-width: 1024px) {
    .table-header,
    .table-row {
        grid-template-columns: 0.8fr 1.2fr 0.8fr 0.8fr 1.5fr;
    }
}

@media (max-width: 768px) {
    .frequencies-container {
        padding: 1rem;
    }
    
    .frequencies-header {
        padding: 2rem 1.5rem;
    }
    
    .frequencies-header h1 {
        font-size: 2rem;
    }
    
    .band-section {
        padding: 1.5rem;
    }
    
    .band-section h2 {
        font-size: 1.5rem;
    }
    
    .table-header,
    .table-row {
        grid-template-columns: 1fr;
        gap: 0.5rem;
    }
    
    .table-header {
        display: none;
    }
    
    .table-row {
        border: 1px solid var(--border-color);
        border-radius: 8px;
        margin-bottom: 1rem;
        padding: 1rem;
    }
    
    .col-band::before {
        content: 'Band: ';
        font-weight: 600;
        color: var(--primary-color);
    }
    
    .col-freq::before {
        content: 'Frequency: ';
        font-weight: 600;
        color: var(--primary-color);
    }
    
    .col-modes::before {
        content: 'Modes: ';
        font-weight: 600;
        color: var(--primary-color);
    }
    
    .col-power::before {
        content: 'Power: ';
        font-weight: 600;
        color: var(--primary-color);
    }
    
    .col-notes::before {
        content: 'Notes: ';
        font-weight: 600;
        color: var(--primary-color);
    }
    
    .nav-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .nav-btn {
        width: 100%;
        max-width: 200px;
    }
    
    .modes-grid {
        grid-template-columns: 1fr;
    }
    
    .notes-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .frequencies-header {
        padding: 1.5rem 1rem;
    }
    
    .frequencies-header h1 {
        font-size: 1.75rem;
    }
    
    .band-section {
        padding: 1rem;
    }
    
    .band-section h2 {
        font-size: 1.25rem;
    }
    
    .quick-nav {
        padding: 1.5rem 1rem;
    }
    
    .notes-section {
        padding: 1.5rem 1rem;
    }
}