/* ========================================
   oxyGEN — Bulma Theme Overrides + Custom CSS
   ======================================== */

/* --- Bulma Variable Overrides --- */
:root {
    --bulma-primary: #0f766e;
    --bulma-primary-light: #14b8a6;
    --bulma-primary-dark: #115e59;
    --bulma-link: #0f766e;
    --bulma-success: #10b981;
    --bulma-warning: #f59e0b;
    --bulma-danger: #ef4444;
    --bulma-info: #3b82f6;

    /* Keep legacy vars for JS-generated elements */
    --primary: #0f766e;
    --primary-light: #14b8a6;
    --primary-dark: #115e59;
    --secondary: #f59e0b;
    --success: #10b981;
    --error: #ef4444;
    --text: #1f2937;
    --text-light: #6b7280;
}

html, body {
    background: #f0fdfa;
}

/* --- Header (fixed, 75px, white) --- */
.oxygen-header {
    background: #fff;
    color: #000;
    height: 75px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    display: flex;
    align-items: center;
}

.oxygen-header-inner {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
    height: 75px;
}

.oxygen-header-left {
    display: flex;
    align-items: center;
    gap: 16px;
}

.oxygen-header-left h1 {
    font-weight: 700;
    margin: 0;
    color: #000;
}

.oxygen-header-logo {
    height: 50px;
    width: auto;
}

.oxygen-header-actions {
    display: flex;
    gap: 0.5rem;
    align-items: center;
}

.oxygen-header-btn {
    background: #f0f0f0;
    border: 1px solid #ddd;
    color: #333;
    border-radius: 8px;
    padding: 0;
    cursor: pointer;
    font-size: 0.875rem;
    font-weight: 500;
    transition: all 0.2s;
    width: 2.5rem;
    height: 2.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
}

.oxygen-header-btn:hover {
    background: #e0e0e0;
}

.oxygen-header-btn svg {
    width: 1.5rem;
    height: 1.5rem;
}

/* --- Main Content --- */
.oxygen-main {
    max-width: 1400px;
    margin: 0 auto;
    padding: 100px 2rem 2rem;
}

/* --- Tabs (Custom — Bulma tabs are different) --- */
.oxygen-tabs {
    display: flex;
    gap: 0.25rem;
    background: #f3f4f6;
    padding: 0.25rem;
    border-radius: 0.5rem;
    margin-bottom: 1.5rem;
}

.oxygen-tab {
    flex: 1;
    padding: 0.625rem 1rem;
    border: none;
    background: transparent;
    border-radius: 0.375rem;
    font-weight: 500;
    color: var(--text-light);
    cursor: pointer;
    transition: all 0.2s;
    white-space: nowrap;
}

.oxygen-tab:hover {
    background: rgba(255,255,255,0.7);
}

.oxygen-tab.active {
    background: white;
    color: var(--primary);
    box-shadow: 0 1px 2px 0 rgba(0,0,0,0.05);
}

/* --- Stat Cards --- */
.oxygen-stat-card {
    background: #f9fafb;
    border-radius: 0.75rem;
    padding: 1rem;
    text-align: center;
}

.oxygen-stat-value {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary);
}

.oxygen-stat-label {
    font-size: 0.75rem;
    color: var(--text-light);
    text-transform: uppercase;
    letter-spacing: 0.025em;
    margin-top: 0.25rem;
}

/* --- JSON Container --- */
.oxygen-json-container {
    background: #1f2937;
    border-radius: 0.75rem;
    padding: 1rem;
    overflow: auto;
    max-height: 500px;
    word-break: break-word;
}

/* --- Upload Section --- */
.oxygen-upload-section {
    background: linear-gradient(135deg, #eff6ff 0%, #dbeafe 100%);
    border: 1px solid #bfdbfe;
    border-radius: 0.75rem;
    padding: 1.25rem;
    margin-top: 1.5rem;
}

.oxygen-upload-section h3 {
    color: #1e40af;
    font-size: 0.875rem;
    font-weight: 600;
    margin: 0 0 1rem 0;
}

/* --- Progress Bar --- */
.oxygen-progress {
    width: 100%;
    height: 8px;
    background: #e5e7eb;
    border-radius: 4px;
    overflow: hidden;
}

.oxygen-progress-fill {
    height: 100%;
    background: linear-gradient(90deg, #3b82f6, #10b981);
    transition: width 0.3s ease;
}

.oxygen-progress-fill.indeterminate {
    width: 100% !important;
    animation: oxygen-progress-slide 1.5s ease-in-out infinite;
}

@keyframes oxygen-progress-slide {
    0% { transform: translateX(-100%); }
    100% { transform: translateX(100%); }
}

/* --- Toast Notifications --- */
.oxygen-toast {
    position: fixed;
    top: 1.5rem;
    right: 1.5rem;
    z-index: 9999;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.oxygen-toast-item {
    padding: 0.875rem 1.25rem;
    border-radius: 0.5rem;
    color: white;
    font-size: 0.875rem;
    font-weight: 500;
    box-shadow: 0 10px 15px -3px rgba(0,0,0,0.1);
    animation: oxygen-slideIn 0.3s ease;
    max-width: 24rem;
}

.oxygen-toast-success { background: var(--success); }
.oxygen-toast-error { background: var(--error); }
.oxygen-toast-warning { background: var(--secondary); }
.oxygen-toast-info { background: #3b82f6; }

@keyframes oxygen-slideIn {
    from { transform: translateX(100%); opacity: 0; }
    to { transform: translateX(0); opacity: 1; }
}

@keyframes oxygen-slideOut {
    from { transform: translateX(0); opacity: 1; }
    to { transform: translateX(100%); opacity: 0; }
}

/* --- Empty State --- */
.oxygen-empty-state {
    text-align: center;
    padding: 3rem 1rem;
    color: var(--text-light);
}

.oxygen-empty-state svg {
    width: 4rem;
    height: 4rem;
    margin: 0 auto 1rem;
    opacity: 0.5;
}

/* --- Section Title (with left accent bar) --- */
.oxygen-section-title {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--text);
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.oxygen-section-title::before {
    content: '';
    display: block;
    width: 0.25rem;
    height: 1rem;
    background: var(--primary);
    border-radius: 0.125rem;
}

/* --- Spinner --- */
.oxygen-spinner {
    display: inline-block;
    width: 1rem;
    height: 1rem;
    border: 2px solid rgba(255,255,255,0.3);
    border-top-color: white;
    border-radius: 50%;
    animation: oxygen-spin 0.6s linear infinite;
    vertical-align: middle;
    margin-right: 0.25rem;
}

.oxygen-spinner.dark {
    border-color: rgba(0,0,0,0.2);
    border-top-color: var(--primary);
}

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

/* --- Badge (Tag) --- */
.oxygen-badge {
    display: inline-flex;
    align-items: center;
    padding: 0.25rem 0.75rem;
    border-radius: 9999px;
    font-size: 0.75rem;
    font-weight: 600;
}

.oxygen-badge-success {
    background: #d1fae5;
    color: #065f46;
}

.oxygen-badge-primary {
    background: #ccfbf1;
    color: #0f766e;
}

.oxygen-badge-info {
    background: #dbeafe;
    color: #1e40af;
}

/* --- Responsive --- */
@media (max-width: 640px) {
    .oxygen-header-inner { padding: 0 1rem; }
    .oxygen-header-left h1 { font-size: 1.25rem; }
    .oxygen-header-logo { height: 40px; }
    .oxygen-main { padding: 80px 1rem 1rem; }
}

/* --- Utility --- */
.is-hidden { display: none !important; }

/* --- Modal above fixed header --- */
.modal { z-index: 200; }