/* =========================================
   1. Design Tokens (Earthy Tech Palette)
   ========================================= */
:root {
    /* Backgrounds */
    --bg-body: #FAFAF9; /* Warm off-white */
    --bg-panel: #FFFFFF; /* Crisp white for depth */
    --bg-sidebar: #292524; /* Deep Espresso */

    /* Text */
    --text-primary: #292524; /* Deep Espresso */
    --text-secondary: #57534E; /* Warm Gray */
    --text-muted: #A8A29E;
    --text-inverse: #FAFAF9;

    /* Accents & Status */
    --primary-green: #064E3B; /* Forest Green */
    --primary-green-hover: #065F46;
    --accent-terra: #9A3412; /* Terracotta */
    --accent-terra-hover: #7C2D12;
    --status-up: #65A30D; /* Muted Sage */
    --status-down: #DC2626; /* Burnt Rust Red */
    --latency-warn: #D97706; /* Earthy Amber */

    /* UI Elements */
    --border-color: #E7E5E4;
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-lg: 0 10px 15px -3px rgba(41, 37, 36, 0.1);
}

/* =========================================
   2. Base & Typography
   ========================================= */
* { box-sizing: border-box; margin: 0; padding: 0; }
body { font-family: 'Inter', sans-serif; font-size: 14px; color: var(--text-primary); background-color: var(--bg-body); -webkit-font-smoothing: antialiased; }
a { text-decoration: none; color: inherit; }
button { border: none; cursor: pointer; font-family: inherit; transition: 0.2s ease; }
ul { list-style: none; }

/* =========================================
   3. Layout Structure
   ========================================= */
.app-container { display: flex; height: 100vh; overflow: hidden; }

.sidebar { width: 260px; background-color: var(--bg-sidebar); color: var(--text-inverse); display: flex; flex-direction: column; padding: 32px 24px; flex-shrink: 0; }
.logo { font-size: 20px; font-weight: 700; margin-bottom: 48px; letter-spacing: -0.5px; }
.nav-link { display: block; padding: 12px 16px; border-radius: 6px; color: var(--text-muted); font-weight: 500; margin-bottom: 8px; transition: 0.2s; }
.nav-link:hover, .nav-link.active { background-color: rgba(250, 250, 249, 0.1); color: var(--text-inverse); }
.mt-auto { margin-top: auto; }

.main-content { flex: 1; display: flex; flex-direction: column; overflow-y: auto; }
.header { background-color: var(--bg-panel); padding: 24px 40px; border-bottom: 1px solid var(--border-color); display: flex; justify-content: space-between; align-items: center; }
.header h1 { font-size: 24px; font-weight: 600; }
.container { padding: 40px; max-width: 1200px; margin: 0 auto; width: 100%; }

/* =========================================
   4. UI Components (Buttons, Forms, Tables)
   ========================================= */
.btn { padding: 10px 20px; border-radius: 6px; font-weight: 500; font-size: 14px; }
.btn-primary { background-color: var(--primary-green); color: var(--bg-panel); }
.btn-primary:hover:not(:disabled) { background-color: var(--primary-green-hover); }
.btn-primary:disabled { opacity: 0.7; cursor: not-allowed; }
.btn-secondary { background-color: var(--bg-panel); border: 1px solid var(--border-color); color: var(--text-primary); }
.btn-secondary:hover { background-color: var(--bg-body); }
.btn-danger { background-color: var(--bg-panel); border: 1px solid #FCA5A5; color: var(--status-down); padding: 6px 12px; }
.btn-danger:hover { background-color: #FEF2F2; }

.card { background-color: var(--bg-panel); border: 1px solid var(--border-color); border-radius: 12px; box-shadow: var(--shadow-sm); overflow: hidden; }

.table { width: 100%; border-collapse: collapse; text-align: left; }
.table th { padding: 16px 24px; font-weight: 500; color: var(--text-secondary); border-bottom: 1px solid var(--border-color); background: #F5F5F4; }
.table td { padding: 16px 24px; border-bottom: 1px solid var(--border-color); }
.table tr:last-child td { border-bottom: none; }
.table tr:hover { background-color: var(--bg-body); }
.cell-actions { text-align: right; display: flex; gap: 8px; justify-content: flex-end; }

.status-dot { display: inline-block; width: 8px; height: 8px; border-radius: 50%; margin-right: 8px; }
.up { background-color: var(--status-up); }
.down { background-color: var(--status-down); }

input, textarea { width: 100%; padding: 10px 12px; border: 1px solid var(--border-color); border-radius: 6px; font-family: inherit; font-size: 14px; color: var(--text-primary); background-color: var(--bg-body); transition: border-color 0.2s; }
input:focus, textarea:focus { outline: none; border-color: var(--primary-green); box-shadow: 0 0 0 3px rgba(6, 78, 59, 0.1); }
input.error, textarea.error { border-color: var(--status-down); }
.form-group { margin-bottom: 20px; }
.form-label { display: block; margin-bottom: 6px; font-weight: 500; }
.json-error-msg { color: var(--status-down); font-size: 12px; margin-top: 4px; display: none; }

/* =========================================
   5. Empty State & Skeleton Loaders
   ========================================= */
.empty-state { text-align: center; padding: 80px 20px; display: none; }
.empty-state h2 { font-size: 20px; margin-bottom: 8px; }
.empty-state p { color: var(--text-secondary); margin-bottom: 24px; }
.pulse-btn { animation: pulse 2s infinite; }
@keyframes pulse { 0% { box-shadow: 0 0 0 0 rgba(6, 78, 59, 0.4); } 70% { box-shadow: 0 0 0 10px rgba(6, 78, 59, 0); } 100% { box-shadow: 0 0 0 0 rgba(6, 78, 59, 0); } }

.skeleton { background: linear-gradient(90deg, #E7E5E4 25%, #F5F5F4 50%, #E7E5E4 75%); background-size: 200% 100%; animation: shimmer 1.5s infinite; height: 20px; border-radius: 4px; }
@keyframes shimmer { 0% { background-position: 200% 0; } 100% { background-position: -200% 0; } }

/* =========================================
   6. Modals & Toasts
   ========================================= */
.modal-overlay { position: fixed; inset: 0; background-color: rgba(41, 37, 36, 0.6); backdrop-filter: blur(2px); display: none; justify-content: center; align-items: center; z-index: 50; opacity: 0; transition: opacity 0.2s; }
.modal-overlay.active { display: flex; opacity: 1; }
.modal { background-color: var(--bg-panel); width: 100%; max-width: 500px; border-radius: 12px; box-shadow: var(--shadow-lg); transform: translateY(20px); transition: transform 0.2s; }
.modal-overlay.active .modal { transform: translateY(0); }
.modal-wide { max-width: 700px; }
.modal-header { padding: 20px 24px; border-bottom: 1px solid var(--border-color); display: flex; justify-content: space-between; align-items: center; }
.modal-body { padding: 24px; max-height: 70vh; overflow-y: auto; }
.modal-footer { padding: 16px 24px; border-top: 1px solid var(--border-color); background-color: #F5F5F4; display: flex; justify-content: flex-end; gap: 12px; border-radius: 0 0 12px 12px; }
.close-btn { background: transparent; font-size: 24px; color: var(--text-muted); }
.close-btn:hover { color: var(--text-primary); }

.toast-container { position: fixed; bottom: 24px; right: 24px; z-index: 100; display: flex; flex-direction: column; gap: 10px; }
.toast { padding: 16px 20px; border-radius: 8px; color: white; font-weight: 500; box-shadow: var(--shadow-lg); transform: translateX(100%); opacity: 0; transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1); }
.toast.show { transform: translateX(0); opacity: 1; }
.toast.success { background-color: var(--status-up); }
.toast.error { background-color: var(--status-down); }

#chart-container { height: 200px; background-color: var(--bg-body); border: 1px dashed var(--border-color); border-radius: 8px; margin-bottom: 24px; display: flex; align-items: center; justify-content: center; color: var(--text-muted); }

/* Filter Chips for History Modal */
.btn-range {
    padding: 6px 14px;
    border-radius: 20px; /* Makes them pill-shaped */
    border: 1px solid var(--border-color);
    background-color: var(--bg-panel);
    font-size: 12px;
    font-weight: 600;
    color: var(--text-secondary);
    transition: all 0.2s ease;
}

.btn-range:hover {
    background-color: var(--bg-body);
    border-color: var(--text-muted);
}

.btn-range.active {
    background-color: var(--primary-green);
    color: var(--bg-panel);
    border-color: var(--primary-green);
}

/* =========================================
   7. Deep Earth Dark Mode
   ========================================= */
body.dark-mode {
    --bg-body: #1C1917; /* Deep Charcoal */
    --bg-panel: #292524; /* Warm Dark Gray */
    --text-primary: #F5F5F4; /* Soft Off-white */
    --text-secondary: #D6D3D1;
    --text-muted: #78716C;
    --border-color: #44403C;
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.5);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.5);

    /* --- NEW: Vibrant Emerald Overrides --- */
    --primary-green: #10B981; /* Vibrant Emerald Green */
    --primary-green-hover: #34D399; /* Lighter Emerald for hover state */
}

/* Perfect contrast for the new bright buttons */
body.dark-mode .btn-primary {
    color: #1C1917; /* Deep Charcoal text on bright green */
    font-weight: 700;
}

body { transition: background-color 0.3s ease, color 0.3s ease; }
.card, .modal { transition: background-color 0.3s ease, border-color 0.3s ease; }

/* =========================================
   8. Settings SPA Layout
   ========================================= */
.settings-layout { display: flex; gap: 40px; align-items: flex-start; }

.settings-nav { display: flex; flex-direction: column; width: 220px; flex-shrink: 0; }
.settings-tab { text-align: left; padding: 12px 16px; background: transparent; color: var(--text-secondary); font-weight: 500; font-size: 14px; border-radius: 6px; margin-bottom: 4px; border: 1px solid transparent; }
.settings-tab:hover { background-color: rgba(154, 52, 18, 0.05); color: var(--text-primary); }
.settings-tab.active { background-color: var(--bg-panel); color: var(--primary-green); border-color: var(--border-color); box-shadow: var(--shadow-sm); font-weight: 600; }

/* Brighten the green tab in dark mode so it pops */
body.dark-mode .settings-tab.active {
    color: #10B981; /* Vibrant Emerald Green */
    background-color: var(--bg-body); /* Adds subtle depth */
}

.settings-content { flex-grow: 1; padding: 32px 40px; min-height: 500px; }
.settings-pane { display: none; animation: fadeIn 0.3s ease; }
.settings-pane.active { display: block; }
@keyframes fadeIn { from { opacity: 0; transform: translateY(5px); } to { opacity: 1; transform: translateY(0); } }

/* Settings Utilities */
.pane-title { font-size: 18px; font-weight: 600; margin-bottom: 16px; }
.pane-subtitle { font-size: 15px; font-weight: 600; color: var(--text-primary); }
.pane-divider { border: 0; border-top: 1px solid var(--border-color); margin-bottom: 24px; }
.max-w-md { max-width: 400px; }
.flex-between { display: flex; justify-content: space-between; align-items: center; }
.flex-row { display: flex; align-items: center; }
.gap-sm { gap: 12px; }
.mb-0 { margin-bottom: 0 !important; }
.mb-sm { margin-bottom: 8px; }
.mb-md { margin-bottom: 16px; }
.mt-sm { margin-top: 8px; }
.mt-xl { margin-top: 32px; }
.text-sm { font-size: 13px; }
.font-bold { font-weight: 600; }
.block { display: block; }
.border-top { border-top: 1px solid var(--border-color); }
.pt-md { padding-top: 16px; }

/* Read Only / Disabled Inputs */
.disabled-input { background-color: rgba(0,0,0,0.02); color: var(--text-muted); cursor: not-allowed; }
body.dark-mode .disabled-input { background-color: rgba(255,255,255,0.02); }

/* API Key Box */
.api-key-box { border: 1px dashed var(--border-color); border-radius: 6px; padding: 20px; display: flex; justify-content: space-between; align-items: center; background-color: var(--bg-body); }
.btn-sm { padding: 6px 12px; font-size: 12px; }

/* Plan Badge & Progress Bar */
.plan-badge { display: inline-block; background-color: rgba(6, 78, 59, 0.1); color: var(--primary-green); padding: 6px 14px; border-radius: 20px; font-weight: 600; font-size: 13px; border: 1px solid rgba(6, 78, 59, 0.2); }
body.dark-mode .plan-badge { background-color: rgba(16, 185, 129, 0.1); color: #10B981; border-color: rgba(16, 185, 129, 0.2); }

.progress-container { width: 100%; height: 8px; background-color: var(--border-color); border-radius: 4px; overflow: hidden; }
.progress-fill { height: 100%; background-color: var(--primary-green); border-radius: 4px; transition: width 0.5s ease; }

/* Custom CSS Toggle Switch */
.toggle-switch { position: relative; display: inline-block; width: 44px; height: 24px; flex-shrink: 0; }
.toggle-switch input { opacity: 0; width: 0; height: 0; }
.slider { position: absolute; cursor: pointer; top: 0; left: 0; right: 0; bottom: 0; background-color: var(--border-color); transition: .3s; border-radius: 24px; }
.slider:before { position: absolute; content: ""; height: 18px; width: 18px; left: 3px; bottom: 3px; background-color: var(--bg-panel); transition: .3s; border-radius: 50%; box-shadow: 0 1px 3px rgba(0,0,0,0.2); }
input:checked + .slider { background-color: var(--primary-green); }
input:checked + .slider:before { transform: translateX(20px); }

/* =========================================
   9. Custom Selectors (Overrides Browser Defaults)
   ========================================= */
select {
    appearance: none;
    -webkit-appearance: none;
    -moz-appearance: none;
    width: 100%;
    padding: 10px 40px 10px 12px; /* Space for the custom arrow */
    font-family: 'Inter', sans-serif;
    font-size: 14px;
    color: var(--text-primary);
    background-color: var(--bg-body);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    cursor: pointer;
    /* Custom SVG Chevron Arrow */
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%2357534E' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 12px center;
    transition: all 0.2s ease;
}

/* Custom Focus Ring (Removes the default blue) */
select:focus {
    outline: none;
    border-color: var(--primary-green);
    box-shadow: 0 0 0 3px rgba(6, 78, 59, 0.1);
}

/* Fix Firefox focus outline issue */
select:-moz-focusring {
    color: transparent;
    text-shadow: 0 0 0 var(--text-primary);
}

/* Dark Mode Select Overrides */
body.dark-mode select {
    background-color: var(--bg-panel);
    color: #F5F5F4; /* Forces bright off-white text so you can actually read it */
    border-color: var(--border-color);
    /* Lighter SVG Chevron */
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%23D6D3D1' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
}

body.dark-mode select:focus {
    border-color: #10B981; /* Vibrant green border for dark mode */
    box-shadow: 0 0 0 3px rgba(16, 185, 129, 0.2);
}

/* =========================================
   10. Dark Mode Fixes
   ========================================= */
body.dark-mode .table th {
    /* Replaces the harsh white with a deep charcoal */
    background-color: #1C1917;
    border-bottom: 1px solid var(--border-color);
}

/* =========================================
   11. Authentication Layout (Login Page)
   ========================================= */
.auth-body {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    background-color: var(--bg-body);
}

.auth-wrapper {
    width: 100%;
    max-width: 420px;
    padding: 20px;
    animation: fadeIn 0.4s ease;
}

.auth-card {
    padding: 40px;
}

.auth-logo {
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 32px;
    letter-spacing: -0.5px;
    color: var(--text-primary);
    text-align: center;
}

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

/* =========================================
   12. HTTP Method Badges
   ========================================= */
.method-badge {
    font-size: 11px;
    font-weight: 700;
    padding: 3px 6px;
    border-radius: 4px;
    margin-right: 8px;
    font-family: monospace;
    display: inline-block;
    min-width: 45px;
    text-align: center;
}

/* Color Coding */
.method-GET { background-color: rgba(16, 185, 129, 0.1); color: #10B981; }
.method-POST { background-color: rgba(59, 130, 246, 0.1); color: #3B82F6; } /* Blue */
.method-PUT { background-color: rgba(245, 158, 11, 0.1); color: #F59E0B; } /* Amber */
.method-DELETE { background-color: rgba(239, 68, 68, 0.1); color: #EF4444; } /* Red */
.method-PATCH { background-color: rgba(139, 92, 246, 0.1); color: #8B5CF6; } /* Purple *//* Activity Toggle Button */
.btn-activity {
    padding: 6px 12px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
    transition: all 0.2s ease;
    border: 1px solid transparent;
}
.btn-activity.active {
    background-color: rgba(101, 163, 13, 0.1);
    color: var(--status-up);
    border-color: rgba(101, 163, 13, 0.2);
}
.btn-activity.inactive {
    background-color: var(--bg-body);
    color: var(--text-muted);
    border-color: var(--border-color);
}
.btn-activity.active:hover {
    background-color: rgba(101, 163, 13, 0.2);
}
.btn-activity.inactive:hover {
    background-color: #E7E5E4;
}
body.dark-mode .btn-activity.active {
    background-color: rgba(101, 163, 13, 0.15);
}
body.dark-mode .btn-activity.inactive {
    background-color: var(--bg-sidebar);
}
body.dark-mode .btn-activity.inactive:hover {
    background-color: #3f3f46;
}

/* =========================================
   13. Responsive Design (Mobile / Tablet)
   ========================================= */
@media (max-width: 768px) {
    /* Layout Switch */
    .app-container { flex-direction: column; height: 100vh; overflow-y: auto; }
    .sidebar { width: 100%; padding: 16px; flex-direction: row; flex-wrap: wrap; height: auto; }
    .logo { margin-bottom: 0; margin-right: auto; flex: 1; }
    .sidebar nav { width: 100%; margin-top: 12px; order: 3; }
    .sidebar nav ul { display: flex; gap: 8px; justify-content: space-around; overflow-x: auto; padding-bottom: 4px; }
    .nav-link { margin-bottom: 0; white-space: nowrap; text-align: center; font-size: 13px; }
    #logoutBtn { margin-top: auto; padding: 6px 12px; border: 1px solid rgba(255,255,255,0.2); }

    /* Content Switch */
    .main-content { overflow-y: visible; flex: none; height: auto; min-height: 100%; }
    .header { padding: 20px 16px; flex-direction: row; flex-wrap: wrap; align-items: center; justify-content: space-between; }
    .header h1 { font-size: 20px; }

    /* Containers & Spacing */
    .container { padding: 16px; }

    /* Responsive Data Tables */
    .card { overflow-x: auto; }
    .table { width: 100%; min-width: 700px; /* Force scroll on small screens rather than squishing data */ }

    /* Modal Adjustment */
    .modal { width: 95%; max-width: none; margin: 20px auto; }
    .modal-body { padding: 16px; }

    /* Settings Layout */
    .settings-layout { flex-direction: column; }
    .settings-nav { width: 100%; flex-direction: row; overflow-x: auto; border-right: none; border-bottom: 1px solid var(--border-color); padding-bottom: 8px; margin-bottom: 16px; gap: 8px; }
    .settings-tab { flex: 0 0 auto; text-align: center; }
    .settings-content { padding: 16px; }

    /* Settings Form Wraps */
    .form-group.flex-between { flex-direction: column; align-items: flex-start; gap: 16px; }
    .form-group.flex-between .toggle-switch { align-self: flex-start; }
}