/* ============================================
   ODIN Sizer - Styles
   ============================================ */

:root {
    --bg-dark: #000000;
    --card-bg: #111111;
    --card-bg-transparent: rgba(17, 17, 17, 0.95);
    --text-primary: #ffffff;
    --text-secondary: #a1a1aa;
    --accent-blue: #0078d4;
    --accent-purple: #8b5cf6;
    --accent-green: #10b981;
    --accent-orange: #f59e0b;
    --success: #10b981;
    --warning: #f59e0b;
    --danger: #ef4444;
    --glass-border: rgba(255, 255, 255, 0.1);
    --subtle-bg: rgba(255, 255, 255, 0.03);
    --subtle-bg-hover: rgba(255, 255, 255, 0.06);
}

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

body {
    background-color: var(--bg-dark);
    color: var(--text-primary);
    font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
    line-height: 1.6;
    min-height: 100vh;
    padding-top: 56px;
}

/* Tab Navigation */
.odin-tab-nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: var(--nav-bg, linear-gradient(180deg, rgba(17, 17, 17, 0.98) 0%, rgba(17, 17, 17, 0.95) 100%));
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--glass-border);
    padding: 0 24px;
}

.odin-tab-container {
    max-width: 1400px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    gap: 8px;
    height: 56px;
}

.odin-tab-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    padding-right: 24px;
    border-right: 1px solid var(--glass-border);
    margin-right: 16px;
    text-decoration: none;
}

.odin-tab-logo img {
    width: 32px;
    height: 32px;
}

.odin-tab-logo span {
    font-weight: 600;
    font-size: 16px;
    color: var(--text-primary);
}

.odin-tab-btn {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 10px 20px;
    background: transparent;
    border: none;
    color: var(--text-secondary);
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    border-radius: 8px;
    transition: all 0.2s ease;
    position: relative;
    text-decoration: none;
}

.odin-tab-btn:hover {
    background: var(--nav-hover-bg, rgba(255, 255, 255, 0.05));
    color: var(--text-primary);
}

.odin-tab-btn.active {
    background: var(--nav-active-bg, rgba(0, 120, 212, 0.15));
    color: var(--accent-blue);
}

.odin-tab-btn.active::after {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 50%;
    transform: translateX(-50%);
    width: 40px;
    height: 3px;
    background: var(--accent-blue);
    border-radius: 3px 3px 0 0;
}

.odin-tab-btn svg {
    width: 18px;
    height: 18px;
}

.odin-tab-badge {
    padding: 2px 8px;
    background: rgba(139, 92, 246, 0.2);
    color: var(--accent-purple);
    font-size: 10px;
    font-weight: 600;
    border-radius: 10px;
    text-transform: uppercase;
}

/* Theme toggle in nav */
.nav-theme-toggle {
    padding: 6px 12px;
    background: var(--subtle-bg);
    border: 1px solid var(--glass-border);
    color: var(--text-primary);
    border-radius: 6px;
    cursor: pointer;
    font-size: 14px;
    margin-left: auto;
    transition: all 0.2s;
}

.nav-theme-toggle:hover {
    background: var(--subtle-bg-hover);
}

/* Container */
.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 24px;
}

/* Header */
.sizer-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 24px;
}

.sizer-header h1 {
    font-size: 32px;
    font-weight: 700;
    background: linear-gradient(135deg, var(--accent-blue), var(--accent-purple));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 4px;
}

.sizer-header .subtitle {
    color: var(--text-secondary);
    font-size: 14px;
}

.header-actions {
    display: flex;
    gap: 12px;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 20px;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s ease;
    border: 1px solid transparent;
}

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

.btn-primary:hover {
    background: #006cbd;
    transform: translateY(-1px);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.05);
    color: var(--text-secondary);
    border-color: var(--glass-border);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.1);
    color: var(--text-primary);
}

.btn-danger {
    background: rgba(239, 68, 68, 0.1);
    color: var(--danger);
    border-color: rgba(239, 68, 68, 0.3);
}

.btn-danger:hover {
    background: rgba(239, 68, 68, 0.2);
}

/* Info Banner */
.info-banner {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    padding: 16px 20px;
    background: rgba(139, 92, 246, 0.1);
    border: 1px solid rgba(139, 92, 246, 0.3);
    border-radius: 12px;
    margin-bottom: 24px;
    font-size: 14px;
    color: var(--text-secondary);
}

.info-banner svg {
    flex-shrink: 0;
    color: var(--accent-purple);
    margin-top: 2px;
}

.info-banner strong {
    color: var(--accent-purple);
}

/* Layout */
.sizer-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
}

/* Panels */
.config-panel,
.results-panel {
    background: var(--card-bg);
    border: 1px solid var(--glass-border);
    border-radius: 16px;
    padding: 24px;
}

.panel-section {
    margin-bottom: 24px;
}

.panel-section h2 {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 8px;
}

.panel-section h2 svg {
    color: var(--accent-blue);
}

.section-desc {
    color: var(--text-secondary);
    font-size: 14px;
}

/* Workload Types */
.workload-types {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
    margin-bottom: 24px;
}

.workload-type-btn {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
    padding: 20px 16px;
    background: var(--subtle-bg);
    border: 1px solid var(--glass-border);
    border-radius: 12px;
    cursor: pointer;
    transition: all 0.2s ease;
    color: var(--text-primary);
}

.workload-type-btn:hover {
    background: var(--subtle-bg-hover);
    border-color: var(--accent-blue);
    transform: translateY(-2px);
}

.workload-icon {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 12px;
}

.workload-icon.vm {
    background: rgba(0, 120, 212, 0.15);
    color: var(--accent-blue);
}

.workload-icon.aks {
    background: rgba(139, 92, 246, 0.15);
    color: var(--accent-purple);
}

.workload-icon.avd {
    background: rgba(16, 185, 129, 0.15);
    color: var(--accent-green);
}

.workload-type-btn span {
    font-size: 13px;
    font-weight: 500;
    text-align: center;
}

/* Workloads List */
.workloads-list {
    min-height: 200px;
    margin-bottom: 24px;
}

.empty-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 48px 24px;
    text-align: center;
    color: var(--text-secondary);
}

.empty-state svg {
    margin-bottom: 16px;
    opacity: 0.5;
}

.empty-state p {
    font-size: 16px;
    font-weight: 500;
    margin-bottom: 4px;
    color: var(--text-primary);
}

.empty-state span {
    font-size: 14px;
}

/* Workload Card */
.workload-card {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 16px;
    background: var(--subtle-bg);
    border: 1px solid var(--glass-border);
    border-radius: 12px;
    margin-bottom: 12px;
}

.workload-card .workload-icon {
    width: 40px;
    height: 40px;
    flex-shrink: 0;
}

.workload-card-content {
    flex: 1;
    min-width: 0;
}

.workload-card-title {
    font-weight: 600;
    font-size: 14px;
    margin-bottom: 4px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.workload-card-details {
    font-size: 12px;
    color: var(--text-secondary);
}

.workload-card-actions {
    display: flex;
    gap: 8px;
}

.workload-card-actions button {
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: transparent;
    border: 1px solid var(--glass-border);
    border-radius: 6px;
    color: var(--text-secondary);
    cursor: pointer;
    transition: all 0.2s ease;
}

.workload-card-actions button:hover {
    background: var(--subtle-bg-hover);
    color: var(--text-primary);
}

.workload-card-actions button.delete:hover {
    background: rgba(239, 68, 68, 0.1);
    border-color: rgba(239, 68, 68, 0.3);
    color: var(--danger);
}

/* Cluster Config */
.cluster-config {
    padding-top: 24px;
    border-top: 1px solid var(--glass-border);
}

.cluster-config h3 {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 16px;
}

.cluster-config h3 svg {
    color: var(--accent-purple);
}

.config-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 12px;
}

.config-row label {
    font-size: 14px;
    color: var(--text-secondary);
}

.config-row select {
    padding: 8px 12px;
    background: var(--select-bg, #1a1a1a);
    border: 1px solid var(--glass-border);
    border-radius: 8px;
    color: var(--text-primary);
    font-size: 14px;
    min-width: 180px;
    cursor: pointer;
}

.config-row select:focus {
    outline: none;
    border-color: var(--accent-blue);
}

.config-row select:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    background: var(--select-disabled-bg, #0d0d0d);
}

.config-row select option {
    background: var(--select-bg, #1a1a1a);
    color: var(--text-primary);
    padding: 8px;
}

.config-info {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 12px;
    background: rgba(245, 158, 11, 0.1);
    border: 1px solid rgba(245, 158, 11, 0.3);
    border-radius: 8px;
    font-size: 13px;
    color: var(--accent-orange);
    margin-top: 16px;
}

/* Requirements Grid */
.requirements-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
    margin-bottom: 24px;
}

.requirement-card {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 20px;
    background: var(--subtle-bg);
    border: 1px solid var(--glass-border);
    border-radius: 12px;
}

.req-icon {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 12px;
}

.req-icon.cpu {
    background: rgba(0, 120, 212, 0.15);
    color: var(--accent-blue);
}

.req-icon.memory {
    background: rgba(139, 92, 246, 0.15);
    color: var(--accent-purple);
}

.req-icon.storage {
    background: rgba(16, 185, 129, 0.15);
    color: var(--accent-green);
}

.req-icon.workloads {
    background: rgba(245, 158, 11, 0.15);
    color: var(--accent-orange);
}

.req-content {
    display: flex;
    flex-direction: column;
}

.req-label {
    font-size: 12px;
    color: var(--text-secondary);
    margin-bottom: 4px;
}

.req-value {
    font-size: 24px;
    font-weight: 700;
}

/* Per-Node Section */
.per-node-section {
    margin-bottom: 24px;
    padding: 20px;
    background: var(--subtle-bg);
    border: 1px solid var(--glass-border);
    border-radius: 12px;
}

.per-node-section h3 {
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 16px;
    color: var(--text-secondary);
}

.per-node-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
}

.per-node-item {
    text-align: center;
}

.per-node-item .label {
    display: block;
    font-size: 11px;
    color: var(--text-secondary);
    margin-bottom: 4px;
}

.per-node-item .value {
    font-size: 18px;
    font-weight: 600;
}

/* Capacity Breakdown */
.capacity-breakdown {
    margin-bottom: 24px;
}

.capacity-breakdown h3 {
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 16px;
    color: var(--text-secondary);
}

.breakdown-bars {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.breakdown-item {
    padding: 16px;
    background: var(--subtle-bg);
    border: 1px solid var(--glass-border);
    border-radius: 10px;
}

.breakdown-header {
    display: flex;
    justify-content: space-between;
    font-size: 13px;
    margin-bottom: 8px;
}

.breakdown-header span:last-child {
    font-weight: 600;
}

.breakdown-bar {
    height: 8px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 4px;
    overflow: hidden;
    margin-bottom: 6px;
}

.breakdown-fill {
    height: 100%;
    border-radius: 4px;
    transition: width 0.3s ease;
}

.breakdown-fill.compute {
    background: linear-gradient(90deg, var(--accent-blue), #00a2ff);
}

.breakdown-fill.memory {
    background: linear-gradient(90deg, var(--accent-purple), #a78bfa);
}

.breakdown-fill.storage {
    background: linear-gradient(90deg, var(--accent-green), #34d399);
}

.breakdown-legend {
    font-size: 11px;
    color: var(--text-secondary);
}

/* Notes Section */
.notes-section {
    padding: 20px;
    background: var(--subtle-bg);
    border: 1px solid var(--glass-border);
    border-radius: 12px;
}

.notes-section h3 {
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 12px;
    color: var(--text-secondary);
}

.notes-section ul {
    list-style: none;
    padding: 0;
}

.notes-section li {
    position: relative;
    padding-left: 20px;
    margin-bottom: 8px;
    font-size: 13px;
    color: var(--text-secondary);
}

.notes-section li::before {
    content: '•';
    position: absolute;
    left: 0;
    color: var(--accent-blue);
}

/* Modal */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.7);
    z-index: 2000;
    opacity: 0;
    visibility: hidden;
    transition: all 0.2s ease;
}

.modal-overlay.active {
    opacity: 1;
    visibility: visible;
}

.modal {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) scale(0.95);
    background: var(--card-bg);
    border: 1px solid var(--glass-border);
    border-radius: 16px;
    width: 90%;
    max-width: 500px;
    max-height: 90vh;
    overflow: hidden;
    z-index: 2001;
    opacity: 0;
    visibility: hidden;
    transition: all 0.2s ease;
}

.modal.active {
    opacity: 1;
    visibility: visible;
    transform: translate(-50%, -50%) scale(1);
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 24px;
    border-bottom: 1px solid var(--glass-border);
}

.modal-header h3 {
    font-size: 18px;
    font-weight: 600;
}

.modal-close {
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: transparent;
    border: none;
    color: var(--text-secondary);
    font-size: 24px;
    cursor: pointer;
    border-radius: 6px;
    transition: all 0.2s ease;
}

.modal-close:hover {
    background: var(--subtle-bg-hover);
    color: var(--text-primary);
}

.modal-body {
    padding: 24px;
    overflow-y: auto;
    max-height: calc(90vh - 140px);
}

.modal-footer {
    display: flex;
    justify-content: flex-end;
    gap: 12px;
    padding: 20px 24px;
    border-top: 1px solid var(--glass-border);
}

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

.form-group label {
    display: block;
    font-size: 14px;
    font-weight: 500;
    margin-bottom: 8px;
}

.form-group input,
.form-group select {
    width: 100%;
    padding: 12px 16px;
    background: var(--select-bg, #1a1a1a);
    border: 1px solid var(--glass-border);
    border-radius: 8px;
    color: var(--text-primary);
    font-size: 14px;
}

.form-group input:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--accent-blue);
}

.form-group select option {
    background: var(--select-bg, #1a1a1a);
    color: var(--text-primary);
    padding: 8px;
}

.form-group .hint {
    display: block;
    font-size: 12px;
    color: var(--text-secondary);
    margin-top: 6px;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

/* Mobile Responsive */
@media (max-width: 1024px) {
    .sizer-layout {
        grid-template-columns: 1fr;
    }
    
    .workload-types {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .per-node-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .odin-tab-nav {
        padding: 0 12px;
    }
    
    .odin-tab-container {
        height: 48px;
        gap: 4px;
    }
    
    .odin-tab-logo {
        padding-right: 12px;
        margin-right: 8px;
    }
    
    .odin-tab-logo span {
        display: none;
    }
    
    .odin-tab-btn {
        padding: 8px 12px;
        font-size: 12px;
    }
    
    .odin-tab-btn svg {
        width: 16px;
        height: 16px;
    }
    
    .odin-tab-badge {
        display: none;
    }

    body {
        padding-top: 48px;
    }
    
    .container {
        padding: 16px;
    }
    
    .sizer-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 16px;
    }
    
    .sizer-header h1 {
        font-size: 24px;
    }
    
    .workload-types {
        grid-template-columns: 1fr;
    }
    
    .requirements-grid {
        grid-template-columns: 1fr;
    }
    
    .per-node-grid {
        grid-template-columns: 1fr 1fr;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
}