/* ==========================================================================
   THERMATRACK IoT - DASHBOARD STYLE SHEET (SERVERLESS STANDALONE VERSION)
   ========================================================================== */

:root {
    --bg-dark: #070913;
    --bg-darker: #04050a;
    --card-bg: rgba(13, 17, 33, 0.7);
    --card-border: rgba(255, 255, 255, 0.06);
    --card-glow: rgba(0, 240, 255, 0.03);
    
    /* Neon Accent Palettes */
    --accent-cyan: #00f0ff;
    --accent-cyan-glow: rgba(0, 240, 255, 0.4);
    
    --accent-emerald: #10b981;
    --accent-emerald-glow: rgba(16, 185, 129, 0.4);
    
    --accent-rose: #f43f5e;
    --accent-rose-glow: rgba(244, 63, 94, 0.5);
    
    --accent-amber: #f59e0b;
    --accent-violet: #8b5cf6;
    
    /* Text Colors */
    --text-primary: #f1f5f9;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;
    
    /* Fonts */
    --font-primary: 'Outfit', sans-serif;
    --font-digital: 'Orbitron', monospace;
    
    --transition-smooth: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
    font-family: var(--font-primary);
    background-color: var(--bg-darker);
    color: var(--text-primary);
    min-height: 100vh;
    overflow-x: hidden;
    position: relative;
}

/* Glassmorphism Background Spheres */
.glass-bg {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    z-index: -1;
    background: 
        radial-gradient(circle at 10% 20%, rgba(139, 92, 246, 0.15) 0%, transparent 40%),
        radial-gradient(circle at 90% 80%, rgba(0, 240, 255, 0.12) 0%, transparent 40%),
        radial-gradient(circle at 50% 50%, rgba(7, 9, 19, 1) 0%, rgba(4, 5, 10, 1) 100%);
}

.glass-bg::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: radial-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px);
    background-size: 24px 24px;
    opacity: 0.5;
}

/* Layout Container */
.app-container {
    max-width: 1600px;
    margin: 0 auto;
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

/* ==========================================================================
   HEADER SECTION
   ========================================================================== */
.app-header {
    background: rgba(13, 17, 33, 0.5);
    border: 1px border var(--card-border);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-radius: 16px;
    padding: 1.25rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border: 1px solid var(--card-border);
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.3);
}

.header-logo {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.logo-icon {
    font-size: 2rem;
    background: linear-gradient(135deg, var(--accent-rose), var(--accent-amber));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.logo-text h1 {
    font-size: 1.5rem;
    font-weight: 800;
    letter-spacing: 0.5px;
    line-height: 1.2;
}

.accent-text {
    color: var(--accent-cyan);
    text-shadow: 0 0 10px var(--accent-cyan-glow);
}

.logo-text .subtitle {
    font-size: 0.85rem;
    color: var(--text-secondary);
    font-weight: 300;
}

/* Page Navigation Pill Switcher */
.page-nav-switcher {
    display: flex;
    align-items: center;
    background: rgba(0, 0, 0, 0.45);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 50px;
    padding: 0.35rem;
    gap: 0.3rem;
    box-shadow: inset 0 2px 6px rgba(0, 0, 0, 0.5);
}

.page-nav-switcher .nav-tab {
    padding: 0.55rem 1.35rem;
    border-radius: 40px;
    text-decoration: none;
    color: var(--text-secondary);
    font-size: 0.92rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 0.6rem;
    transition: var(--transition-smooth);
    white-space: nowrap;
}

.page-nav-switcher .nav-tab:hover {
    color: #fff;
    background: rgba(255, 255, 255, 0.06);
    transform: translateY(-1px);
}

.page-nav-switcher .nav-tab.active {
    background: linear-gradient(135deg, rgba(0, 240, 255, 0.22), rgba(0, 119, 255, 0.28));
    border: 1px solid rgba(0, 240, 255, 0.45);
    color: #fff;
    box-shadow: 0 0 16px rgba(0, 240, 255, 0.25);
}

@media (max-width: 1024px) {
    .app-header {
        flex-wrap: wrap;
        gap: 1.25rem;
        justify-content: center;
    }
    .header-logo, .header-status, .page-nav-switcher {
        justify-content: center;
    }
}

@media (max-width: 600px) {
    .page-nav-switcher .nav-tab span {
        font-size: 0.85rem;
    }
    .page-nav-switcher .nav-tab {
        padding: 0.45rem 0.95rem;
        gap: 0.45rem;
    }
}

.header-status {
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

.status-badge {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 500;
    background: rgba(0, 0, 0, 0.3);
    border: 1px solid rgba(255, 255, 255, 0.05);
    transition: var(--transition-smooth);
}

.status-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    display: inline-block;
}

/* Online/Offline States */
.status-online {
    border-color: rgba(16, 185, 129, 0.3);
    color: var(--accent-emerald);
}
.status-online .status-dot {
    background-color: var(--accent-emerald);
    box-shadow: 0 0 10px var(--accent-emerald);
    animation: pulse 1.5s infinite;
}

.status-offline {
    border-color: rgba(244, 63, 94, 0.3);
    color: var(--accent-rose);
}
.status-offline .status-dot {
    background-color: var(--accent-rose);
    box-shadow: 0 0 10px var(--accent-rose);
    animation: pulse-red 1.5s infinite;
}

.system-time {
    font-family: var(--font-digital);
    font-size: 1.1rem;
    letter-spacing: 1px;
    color: var(--text-secondary);
    background: rgba(0, 0, 0, 0.2);
    padding: 0.4rem 0.8rem;
    border-radius: 8px;
    border: 1px solid rgba(255, 255, 255, 0.03);
}

/* ==========================================================================
   GRID LAYOUT SYSTEM
   ========================================================================== */
.dashboard-grid {
    display: grid;
    grid-template-columns: 320px 1fr 340px;
    gap: 1.5rem;
    align-items: start;
}

@media (max-width: 1200px) {
    .dashboard-grid {
        grid-template-columns: 1fr;
    }
    .right-sidebar, .device-panel {
        grid-column: span 1;
    }
}

/* Base Card Style */
.grid-card {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-radius: 16px;
    padding: 1.5rem;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
    transition: var(--transition-smooth);
    position: relative;
    overflow: hidden;
}

.grid-card:hover {
    border-color: rgba(255, 255, 255, 0.12);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.5), 0 0 15px var(--card-glow);
}

.card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.25rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    padding-bottom: 0.75rem;
}

.card-header h2 {
    font-size: 1.1rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 0.6rem;
}

.icon-accent {
    color: var(--accent-cyan);
}

/* ==========================================================================
   COLUMN 1: DEVICE SELECTOR PANEL
   ========================================================================== */
.node-count {
    font-size: 0.8rem;
    background: rgba(16, 185, 129, 0.15);
    color: var(--accent-emerald);
    padding: 0.25rem 0.6rem;
    border-radius: 12px;
    font-weight: 500;
}

.device-list {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    min-height: 250px;
}

/* Device Item Card */
.device-item {
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid rgba(255, 255, 255, 0.04);
    border-radius: 12px;
    padding: 1rem;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: var(--transition-smooth);
}

.device-item:hover {
    background: rgba(255, 255, 255, 0.05);
    transform: translateY(-2px);
    border-color: rgba(255, 255, 255, 0.1);
}

.device-item.active {
    background: rgba(0, 240, 255, 0.07);
    border-color: var(--accent-cyan);
    box-shadow: inset 0 0 10px rgba(0, 240, 255, 0.1);
}

.device-info {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.device-name {
    font-weight: 600;
    font-size: 0.95rem;
    letter-spacing: 0.3px;
}

.device-status {
    font-size: 0.75rem;
    display: flex;
    align-items: center;
    gap: 0.3rem;
}

.device-status.online {
    color: var(--accent-emerald);
}
.device-status.offline {
    color: var(--text-muted);
}

.device-status-dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background-color: currentColor;
}

.device-value {
    text-align: right;
}

.device-temp {
    font-family: var(--font-digital);
    font-size: 1.25rem;
    font-weight: 700;
}

.device-temp.online {
    color: var(--accent-cyan);
}

.device-temp.offline {
    color: var(--text-muted);
}

.device-item.alert-active {
    border-color: var(--accent-rose);
    background: rgba(244, 63, 94, 0.06);
    animation: border-flash-red 1.5s infinite;
}

.card-footer-info {
    font-size: 0.75rem;
    color: var(--text-muted);
    display: flex;
    align-items: center;
    gap: 0.4rem;
    margin-top: 1.5rem;
    border-top: 1px solid rgba(255, 255, 255, 0.03);
    padding-top: 0.75rem;
}

/* Skeleton loader */
.skeleton-device {
    height: 65px;
    background: linear-gradient(90deg, rgba(255,255,255,0.02) 25%, rgba(255,255,255,0.05) 50%, rgba(255,255,255,0.02) 75%);
    background-size: 200% 100%;
    animation: loading 1.5s infinite;
    border-radius: 12px;
    border: 1px solid rgba(255, 255, 255, 0.02);
}

/* ==========================================================================
   COLUMN 2: MAIN PANEL (METRICS & GRAPH)
   ========================================================================== */
.main-display-panel {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.metrics-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
}

@media (max-width: 768px) {
    .metrics-row {
        grid-template-columns: 1fr;
    }
}

.metric-card {
    padding: 1.75rem;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    height: 160px;
}

.metric-info {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
}

.metric-title {
    font-size: 0.85rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.8px;
    font-weight: 500;
}

.node-label-badge {
    background: rgba(0, 240, 255, 0.12);
    color: var(--accent-cyan);
    font-size: 0.75rem;
    padding: 0.2rem 0.5rem;
    border-radius: 6px;
    font-weight: 600;
    border: 1px solid rgba(0, 240, 255, 0.15);
}

.metric-tag {
    background: rgba(255, 255, 255, 0.05);
    color: var(--text-secondary);
    font-size: 0.75rem;
    padding: 0.2rem 0.5rem;
    border-radius: 6px;
    font-weight: 500;
}

.metric-body {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 0.75rem;
}

.metric-value-container {
    display: flex;
    align-items: baseline;
    gap: 0.25rem;
}

.temp-readout {
    font-size: 3rem;
    font-weight: 700;
    letter-spacing: -0.5px;
    line-height: 1;
}

.temp-readout.text-glowing {
    text-shadow: 0 0 20px rgba(0, 240, 255, 0.3);
    color: var(--text-primary);
}

.temp-unit {
    font-size: 1.5rem;
    color: var(--text-secondary);
    font-weight: 500;
}

.metric-icon-box {
    width: 50px;
    height: 50px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
}

.obj-icon-box {
    background: linear-gradient(135deg, rgba(244, 63, 94, 0.15), rgba(245, 158, 11, 0.15));
    border: 1px solid rgba(244, 63, 94, 0.2);
    color: var(--accent-rose);
}

.amb-icon-box {
    background: rgba(0, 240, 255, 0.08);
    border: 1px solid rgba(0, 240, 255, 0.15);
    color: var(--accent-cyan);
}

.metric-footer {
    font-size: 0.8rem;
    color: var(--text-secondary);
    margin-top: 0.5rem;
}

.trend-up { color: var(--accent-rose); }
.trend-down { color: var(--accent-cyan); }
.trend-stable { color: var(--text-muted); }

/* Highlight Card Mode for Alerts */
.metric-card.alert-breached {
    border-color: var(--accent-rose);
    background: radial-gradient(circle at 50% 50%, rgba(244, 63, 94, 0.2), rgba(13, 17, 33, 0.7));
    animation: pulse-border-red 1s infinite alternate;
}

.metric-card.alert-breached .temp-readout {
    color: var(--accent-rose);
    text-shadow: 0 0 15px rgba(244, 63, 94, 0.4);
}

/* Graph Section Layout */
.graph-card {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.graph-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    padding-bottom: 0.75rem;
}

.graph-title-group h2 {
    font-size: 1.1rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 0.6rem;
}

.graph-mode-indicator {
    font-size: 0.75rem;
    color: var(--text-secondary);
    margin-top: 0.25rem;
    font-weight: 400;
}

.filter-group {
    background: rgba(0, 0, 0, 0.3);
    padding: 0.25rem;
    border-radius: 10px;
    border: 1px solid rgba(255, 255, 255, 0.03);
    display: flex;
    gap: 0.25rem;
}

.filter-btn {
    background: transparent;
    border: none;
    padding: 0.4rem 0.8rem;
    color: var(--text-secondary);
    font-size: 0.8rem;
    font-weight: 500;
    border-radius: 8px;
    cursor: pointer;
    font-family: var(--font-primary);
    transition: var(--transition-smooth);
}

.filter-btn:hover {
    color: var(--text-primary);
    background: rgba(255, 255, 255, 0.04);
}

.filter-btn.active {
    background: var(--accent-cyan);
    color: var(--bg-darker);
    font-weight: 600;
}

.chart-wrapper {
    position: relative;
    height: 320px;
    width: 100%;
}

/* Stats overlay for historical query */
.stats-grid-overlay {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: 1rem;
    margin-top: 1rem;
    background: rgba(0, 0, 0, 0.2);
    border-radius: 12px;
    padding: 0.85rem;
    border: 1px solid rgba(255, 255, 255, 0.03);
    transition: opacity 0.3s ease;
}

.stats-grid-overlay.hidden {
    display: none;
    opacity: 0;
}

.stat-box {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.2rem;
}

.stat-lbl {
    font-size: 0.75rem;
    color: var(--text-muted);
    text-transform: uppercase;
    font-weight: 500;
}

.stat-val {
    font-family: var(--font-digital);
    font-size: 1.15rem;
    font-weight: 700;
}

.text-cyan { color: var(--accent-cyan); }
.text-emerald { color: var(--accent-emerald); }
.text-rose { color: var(--accent-rose); }

/* ==========================================================================
   COLUMN 3: SIDEBAR (ALERTS & LOGS)
   ========================================================================== */
.right-sidebar {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

/* Alert Master Toggle Switch styling */
.switch {
    position: relative;
    display: inline-block;
    width: 42px;
    height: 22px;
}

.switch input { 
    opacity: 0;
    width: 0;
    height: 0;
}

.slider {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(255, 255, 255, 0.1);
    transition: .4s;
    border: 1px solid rgba(255, 255, 255, 0.05);
}

.slider:before {
    position: absolute;
    content: "";
    height: 14px;
    width: 14px;
    left: 3px;
    bottom: 3px;
    background-color: var(--text-secondary);
    transition: .4s;
}

input:checked + .slider {
    background-color: rgba(16, 185, 129, 0.2);
    border-color: var(--accent-emerald);
}

input:checked + .slider:before {
    background-color: var(--accent-emerald);
    transform: translateX(20px);
}

.slider.round {
    border-radius: 34px;
}

.slider.round:before {
    border-radius: 50%;
}

/* Form Settings Layout */
.alert-form {
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}

.form-group-node {
    background: rgba(0, 0, 0, 0.2);
    padding: 0.6rem 0.85rem;
    border-radius: 8px;
    font-size: 0.85rem;
    border: 1px solid rgba(255, 255, 255, 0.02);
}

.threshold-sliders {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.slider-container {
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
}

.slider-container.slider-disabled {
    opacity: 0.4;
}

.slider-header {
    display: flex;
    justify-content: space-between;
    font-size: 0.8rem;
    color: var(--text-secondary);
}

.limit-value {
    font-family: var(--font-digital);
    font-weight: 700;
}

/* Range input customizing */
input[type=range] {
    -webkit-appearance: none;
    width: 100%;
    background: rgba(255,255,255,0.06);
    height: 6px;
    border-radius: 3px;
    outline: none;
}

input[type=range]:disabled {
    opacity: 0.3;
    cursor: not-allowed;
}

input[type=range]::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background: var(--accent-cyan);
    cursor: pointer;
    box-shadow: 0 0 8px var(--accent-cyan);
    transition: transform 0.1s ease;
}

input[type=range]::-webkit-slider-thumb:hover {
    transform: scale(1.2);
}

input[type=range]:disabled::-webkit-slider-thumb {
    background: var(--text-muted);
    box-shadow: none;
    cursor: not-allowed;
}

/* Action Buttons cluster */
.action-buttons {
    display: flex;
    flex-direction: column;
    gap: 0.6rem;
    width: 100%;
}

/* Buttons */
.btn {
    border: none;
    font-family: var(--font-primary);
    font-weight: 600;
    border-radius: 8px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    transition: var(--transition-smooth);
}

.btn-save {
    background: linear-gradient(135deg, #00f0ff, #0077ff);
    color: #fff;
    padding: 0.8rem 1rem;
    font-size: 0.9rem;
    box-shadow: 0 4px 15px rgba(0, 240, 255, 0.2);
    width: 100%;
}

.btn-save:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 240, 255, 0.35);
}

.btn-save:disabled {
    background: rgba(255, 255, 255, 0.05);
    color: var(--text-muted);
    box-shadow: none;
    cursor: not-allowed;
}

.btn-export {
    background: rgba(0, 240, 255, 0.08);
    color: var(--accent-cyan);
    border: 1px solid rgba(0, 240, 255, 0.25);
    width: 100%;
    padding: 0.75rem 1rem;
    font-size: 0.9rem;
}

.btn-export:hover {
    background: rgba(0, 240, 255, 0.18);
    color: #fff;
    border-color: var(--accent-cyan);
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(0, 240, 255, 0.2);
}

.btn-clear-logs {
    background: rgba(244, 63, 94, 0.1);
    color: var(--accent-rose);
    border: 1px solid rgba(244, 63, 94, 0.2);
    width: 32px;
    height: 32px;
    border-radius: 8px;
}

.btn-clear-logs:hover {
    background: var(--accent-rose);
    color: #fff;
}

/* Logs Container styles */
.logs-card {
    flex-grow: 1;
}

.logs-container {
    display: flex;
    flex-direction: column;
    gap: 0.6rem;
    max-height: 280px;
    overflow-y: auto;
    padding-right: 0.25rem;
}

/* Custom scrollbar */
.logs-container::-webkit-scrollbar {
    width: 4px;
}
.logs-container::-webkit-scrollbar-track {
    background: transparent;
}
.logs-container::-webkit-scrollbar-thumb {
    background: rgba(255,255,255,0.08);
    border-radius: 2px;
}

.no-logs {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    color: var(--text-muted);
    padding: 3rem 1rem;
    text-align: center;
    font-size: 0.85rem;
}

.no-logs i {
    font-size: 1.75rem;
}

/* Log Item Row */
.log-item {
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid rgba(255, 255, 255, 0.04);
    border-radius: 8px;
    padding: 0.65rem 0.8rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.8rem;
    animation: slide-in 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.log-item-details {
    display: flex;
    flex-direction: column;
    gap: 0.2rem;
}

.log-title {
    font-weight: 600;
}

.log-time {
    color: var(--text-muted);
    font-size: 0.7rem;
}

.log-badge {
    padding: 0.2rem 0.5rem;
    border-radius: 6px;
    font-weight: 700;
    font-family: var(--font-digital);
}

.log-badge.high {
    background: rgba(244, 63, 94, 0.15);
    color: var(--accent-rose);
    border: 1px solid rgba(244, 63, 94, 0.2);
}

.log-badge.low {
    background: rgba(0, 240, 255, 0.15);
    color: var(--accent-cyan);
    border: 1px solid rgba(0, 240, 255, 0.2);
}

/* ==========================================================================
   MODAL CONFIGURATION DIALOG
   ========================================================================== */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: rgba(3, 4, 8, 0.85);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    z-index: 10000;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: opacity 0.3s ease;
}

.modal-overlay.hidden {
    opacity: 0;
    pointer-events: none;
}

.modal-content {
    background: var(--card-bg);
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: 20px;
    width: 90%;
    max-width: 550px;
    padding: 2rem;
    box-shadow: 0 20px 50px rgba(0,0,0,0.6);
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
    animation: slide-up 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
    padding-bottom: 0.75rem;
}

.modal-header h3 {
    font-size: 1.25rem;
    font-weight: 700;
    display: flex;
    align-items: center;
    gap: 0.6rem;
}

.btn-close-modal {
    background: transparent;
    border: none;
    color: var(--text-secondary);
    font-size: 1.75rem;
    cursor: pointer;
    line-height: 1;
    transition: var(--transition-smooth);
}

.btn-close-modal:hover {
    color: var(--accent-rose);
}

.modal-instructions {
    font-size: 0.88rem;
    color: var(--text-secondary);
    line-height: 1.5;
}

.config-export-area {
    width: 100%;
    height: 180px;
    background: rgba(0, 0, 0, 0.4);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 10px;
    color: #38bdf8;
    font-family: 'Courier New', Courier, monospace;
    font-size: 0.8rem;
    padding: 1rem;
    resize: none;
    outline: none;
}

.btn-copy {
    background: linear-gradient(135deg, #10b981, #059669);
    color: #fff;
    padding: 0.75rem;
    width: 100%;
    font-size: 0.95rem;
    box-shadow: 0 4px 15px rgba(16, 185, 129, 0.25);
}

.btn-copy:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(16, 185, 129, 0.4);
}

/* ==========================================================================
   ANIMATIONS & KEYFRAMES
   ========================================================================== */

@keyframes pulse {
    0% { transform: scale(1); opacity: 1; }
    50% { transform: scale(1.3); opacity: 0.5; }
    100% { transform: scale(1); opacity: 1; }
}

@keyframes pulse-red {
    0% { transform: scale(1); opacity: 1; box-shadow: 0 0 5px var(--accent-rose); }
    50% { transform: scale(1.3); opacity: 0.4; box-shadow: 0 0 12px var(--accent-rose); }
    100% { transform: scale(1); opacity: 1; box-shadow: 0 0 5px var(--accent-rose); }
}

@keyframes pulse-border-red {
    0% { border-color: rgba(244, 63, 94, 0.4); box-shadow: 0 0 10px rgba(244, 63, 94, 0.2); }
    100% { border-color: rgba(244, 63, 94, 1); box-shadow: 0 0 20px rgba(244, 63, 94, 0.4); }
}

@keyframes border-flash-red {
    0%, 100% { border-color: rgba(244, 63, 94, 0.2); }
    50% { border-color: rgba(244, 63, 94, 1); box-shadow: 0 0 8px rgba(244, 63, 94, 0.3); }
}

@keyframes loading {
    0% { background-position: 200% 0; }
    100% { background-position: -200% 0; }
}

@keyframes slide-in {
    from { opacity: 0; transform: translateY(-10px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes slide-up {
    from { opacity: 0; transform: translateY(30px); }
    to { opacity: 1; transform: translateY(0); }
}

.pulse-glow {
    animation: icon-glow 2s infinite alternate;
}

@keyframes icon-glow {
    0% { filter: drop-shadow(0 0 2px rgba(244, 63, 94, 0.4)); }
    100% { filter: drop-shadow(0 0 8px rgba(245, 158, 11, 0.8)); }
}