/* DEMS Modern Glassmorphism Styling */
@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@300;400;500;600;700&family=Space+Grotesk:wght@400;500;600;700&display=swap');

:root {
    /* Color Palette */
    --bg-main: #070a13;
    --bg-card: rgba(16, 22, 42, 0.65);
    --bg-card-hover: rgba(22, 30, 57, 0.85);
    --border-color: rgba(255, 255, 255, 0.08);
    --border-glow: rgba(0, 242, 254, 0.15);
    
    --text-primary: #f3f4f6;
    --text-secondary: #9ca3af;
    --text-muted: #6b7280;

    /* Status Colors */
    --color-normal: #00f2fe;
    --color-normal-glow: rgba(0, 242, 254, 0.4);
    --color-ok: #10b981;
    --color-ok-glow: rgba(16, 217, 129, 0.4);
    --color-warning: #f59e0b;
    --color-warning-glow: rgba(245, 158, 11, 0.4);
    --color-danger: #ef4444;
    --color-danger-glow: rgba(239, 68, 68, 0.5);
    
    --color-humidity: #a855f7;
    --color-humidity-glow: rgba(168, 85, 247, 0.4);

    /* UI Settings */
    --glass-blur: blur(16px);
    --transition-smooth: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --shadow-main: 0 8px 32px 0 rgba(0, 0, 0, 0.5);
}

/* Reset & Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Outfit', sans-serif;
    background-color: var(--bg-main);
    background-image: 
        radial-gradient(at 0% 0%, rgba(20, 30, 70, 0.5) 0px, transparent 50%),
        radial-gradient(at 100% 100%, rgba(10, 15, 40, 0.8) 0px, transparent 50%),
        radial-gradient(at 50% 0%, rgba(0, 242, 254, 0.05) 0px, transparent 40%);
    background-attachment: fixed;
    color: var(--text-primary);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    overflow-x: hidden;
    line-height: 1.5;
}

/* Scrollbar Styling */
::-webkit-scrollbar {
    width: 6px;
    height: 6px;
}
::-webkit-scrollbar-track {
    background: rgba(0, 0, 0, 0.2);
}
::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.1);
    border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
    background: rgba(255, 255, 255, 0.2);
}

/* Layout Wrapper */
.app-container {
    max-width: 1440px;
    margin: 0 auto;
    padding: 1.5rem;
    width: 100%;
    flex-grow: 1;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

/* Glassmorphism Helper */
.glass-panel {
    background: var(--bg-card);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    box-shadow: var(--shadow-main);
    transition: var(--transition-smooth);
}

.glass-panel:hover {
    border-color: rgba(255, 255, 255, 0.12);
}

/* Header Component */
header.main-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.25rem 2rem;
    position: relative;
    overflow: hidden;
}

header.main-header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--color-normal), transparent);
}

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

.logo-icon {
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, var(--color-normal), #3b82f6);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--bg-main);
    font-weight: 700;
    font-size: 1.2rem;
    box-shadow: 0 0 15px var(--color-normal-glow);
}

.brand-details h1 {
    font-size: 1.4rem;
    font-weight: 600;
    letter-spacing: -0.5px;
    background: linear-gradient(90deg, #fff, var(--text-secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.brand-details p {
    font-size: 0.75rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 1.5px;
}

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

.system-clock {
    font-family: 'Space Grotesk', sans-serif;
    color: var(--color-normal);
    font-size: 0.95rem;
    letter-spacing: 0.5px;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    background: rgba(0, 242, 254, 0.05);
    border-radius: 20px;
    border: 1px solid rgba(0, 242, 254, 0.1);
}

.system-status-indicator {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    font-size: 0.85rem;
    font-weight: 500;
}

.status-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background-color: var(--color-ok);
    box-shadow: 0 0 10px var(--color-ok-glow);
    position: relative;
}

.status-dot.active-alert {
    background-color: var(--color-danger);
    box-shadow: 0 0 12px var(--color-danger-glow);
    animation: pulse 1.2s infinite;
}

.btn {
    padding: 0.6rem 1.2rem;
    border-radius: 10px;
    border: 1px solid transparent;
    cursor: pointer;
    font-family: inherit;
    font-weight: 500;
    font-size: 0.9rem;
    transition: var(--transition-smooth);
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.btn-primary {
    background: linear-gradient(135deg, var(--color-normal), #1d4ed8);
    color: #fff;
    box-shadow: 0 4px 15px rgba(0, 242, 254, 0.2);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 242, 254, 0.35);
}

.btn-outline {
    background: transparent;
    border-color: rgba(255, 255, 255, 0.15);
    color: var(--text-primary);
}

.btn-outline:hover {
    background: rgba(255, 255, 255, 0.05);
    border-color: var(--color-normal);
    box-shadow: 0 0 10px var(--border-glow);
}

.btn-danger {
    background: var(--color-danger);
    color: #fff;
}

.btn-danger:hover {
    opacity: 0.9;
    transform: translateY(-2px);
}

/* Dashboard Grid Layout */
.dashboard-grid {
    display: grid;
    grid-template-columns: repeat(12, 1fr);
    gap: 1.5rem;
}

/* Card General Styling */
.card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.25rem 1.5rem 0.75rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.04);
}

.card-title {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 0.6rem;
}

.card-title i {
    font-size: 1.15rem;
    color: var(--color-normal);
}

.card-body {
    padding: 1.5rem;
}

/* Sensor Grid Area Assignment */
.sensor-card {
    grid-column: span 3;
}

.sensor-value-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 1rem 0;
    position: relative;
}

/* Gauge Animations & Progress Rings */
.progress-ring-container {
    position: relative;
    width: 140px;
    height: 140px;
}

.progress-ring {
    transform: rotate(-90deg);
}

.progress-ring__circle {
    transition: stroke-dashoffset 0.5s ease;
    transform-origin: 50% 50%;
}

.gauge-value {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    text-align: center;
}

.gauge-value .number {
    font-family: 'Space Grotesk', sans-serif;
    font-size: 2.2rem;
    font-weight: 700;
}

.gauge-value .unit {
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.sensor-stats {
    display: flex;
    justify-content: space-between;
    width: 100%;
    margin-top: 1rem;
    padding-top: 1rem;
    border-top: 1px solid rgba(255, 255, 255, 0.04);
    font-size: 0.8rem;
    color: var(--text-secondary);
}

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

.stat-label {
    color: var(--text-muted);
}

.stat-val {
    font-weight: 500;
    color: var(--text-primary);
}

/* Status Indicator Pill */
.status-pill {
    padding: 0.3rem 0.75rem;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    display: flex;
    align-items: center;
    gap: 0.4rem;
}

.status-pill.ok {
    background: rgba(16, 185, 129, 0.1);
    color: var(--color-ok);
    border: 1px solid rgba(16, 185, 129, 0.2);
}

.status-pill.warning {
    background: rgba(245, 158, 11, 0.1);
    color: var(--color-warning);
    border: 1px solid rgba(245, 158, 11, 0.2);
    animation: flash-yellow 2s infinite;
}

.status-pill.critical {
    background: rgba(239, 68, 68, 0.1);
    color: var(--color-danger);
    border: 1px solid rgba(239, 68, 68, 0.2);
    animation: flash-red 1s infinite;
}

/* Smoke Card */
.smoke-indicators {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 0.8rem;
    width: 100%;
}

.smoke-item {
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid rgba(255, 255, 255, 0.04);
    padding: 0.75rem;
    border-radius: 12px;
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
    transition: var(--transition-smooth);
}

.smoke-item:hover {
    background: rgba(255, 255, 255, 0.05);
}

.smoke-label {
    font-size: 0.75rem;
    color: var(--text-secondary);
}

.smoke-val {
    font-size: 0.9rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 0.4rem;
}

.dot-indicator {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background-color: var(--color-ok);
}

.dot-indicator.triggered {
    background-color: var(--color-danger);
    box-shadow: 0 0 8px var(--color-danger-glow);
    animation: pulse 1s infinite;
}

/* Leak Matrix Card */
.leak-container {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    width: 100%;
}

.leak-map {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 0.5rem;
}

.leak-zone {
    aspect-ratio: 1.2;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: 8px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    font-size: 0.7rem;
    font-weight: 500;
    color: var(--text-secondary);
    transition: var(--transition-smooth);
    cursor: default;
}

.leak-zone.leaking {
    background: rgba(239, 68, 68, 0.15);
    border-color: var(--color-danger);
    color: var(--color-danger);
    box-shadow: inset 0 0 10px rgba(239, 68, 68, 0.15);
    animation: flash-red 1.5s infinite;
}

.leak-zone.normal {
    background: rgba(16, 185, 129, 0.05);
    border-color: rgba(16, 185, 129, 0.15);
    color: var(--color-ok);
}

.leak-level-bar {
    width: 100%;
    height: 6px;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 3px;
    overflow: hidden;
    margin-top: 0.5rem;
    position: relative;
}

.leak-level-fill {
    height: 100%;
    width: 0%;
    background: linear-gradient(90deg, var(--color-ok), var(--color-danger));
    transition: width 0.5s ease;
}

/* Alarm Light / Buzzer System Card */
.alarm-status-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1.25rem;
}

.alarm-light-orb {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    background: radial-gradient(circle, var(--color-ok) 0%, rgba(10, 15, 30, 0.8) 100%);
    box-shadow: 0 0 30px var(--color-ok-glow), inset 0 0 15px rgba(255,255,255,0.2);
    transition: var(--transition-smooth);
}

.alarm-light-orb.warning-state {
    background: radial-gradient(circle, var(--color-warning) 0%, rgba(10, 15, 30, 0.8) 100%);
    box-shadow: 0 0 35px var(--color-warning-glow), inset 0 0 15px rgba(255,255,255,0.2);
    animation: pulse-yellow 1.5s infinite;
}

.alarm-light-orb.danger-state {
    background: radial-gradient(circle, var(--color-danger) 0%, rgba(10, 15, 30, 0.8) 100%);
    box-shadow: 0 0 45px var(--color-danger-glow), inset 0 0 20px rgba(255,255,255,0.3);
    animation: flash-red 0.8s infinite;
}

.buzzer-status {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    padding: 0.75rem 1rem;
    background: rgba(255, 255, 255, 0.02);
    border-radius: 12px;
    border: 1px solid rgba(255, 255, 255, 0.04);
}

.buzzer-text {
    font-size: 0.85rem;
    font-weight: 500;
}

.buzzer-state {
    font-size: 0.8rem;
    font-weight: 600;
    padding: 0.2rem 0.5rem;
    border-radius: 4px;
    background: rgba(255, 255, 255, 0.05);
}

.buzzer-state.active {
    background: rgba(239, 68, 68, 0.15);
    color: var(--color-danger);
}

/* Middle Layout - Charts and Config/Logs split */
.chart-panel {
    grid-column: span 8;
}

.chart-header-actions {
    display: flex;
    gap: 0.5rem;
}

.chart-tab {
    padding: 0.4rem 1rem;
    font-size: 0.8rem;
    border-radius: 8px;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.05);
    color: var(--text-secondary);
    cursor: pointer;
    transition: var(--transition-smooth);
}

.chart-tab:hover {
    background: rgba(255, 255, 255, 0.08);
}

.chart-tab.active {
    background: rgba(0, 242, 254, 0.1);
    border-color: var(--color-normal);
    color: var(--color-normal);
}

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

/* Right Panel - Settings & Logs */
.side-panel {
    grid-column: span 4;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.settings-panel {
    display: flex;
    flex-direction: column;
}

.settings-locked-overlay {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 3rem 1.5rem;
    text-align: center;
    gap: 1rem;
    background: rgba(16, 22, 42, 0.4);
    border-radius: 12px;
    border: 1px dashed rgba(255, 255, 255, 0.08);
}

.settings-locked-overlay i {
    font-size: 2rem;
    color: var(--text-muted);
}

.settings-form {
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.form-group-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}

label {
    font-size: 0.8rem;
    font-weight: 500;
    color: var(--text-secondary);
}

input[type="number"],
input[type="text"],
input[type="password"] {
    background: rgba(0, 0, 0, 0.2);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 8px;
    padding: 0.5rem 0.75rem;
    color: var(--text-primary);
    font-family: inherit;
    font-size: 0.9rem;
    transition: var(--transition-smooth);
    width: 100%;
}

input:focus {
    outline: none;
    border-color: var(--color-normal);
    box-shadow: 0 0 8px var(--border-glow);
}

.checkbox-group {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    cursor: pointer;
    font-size: 0.85rem;
    user-select: none;
}

input[type="checkbox"] {
    accent-color: var(--color-normal);
    width: 16px;
    height: 16px;
}

/* Activity Log Panel */
.activity-log-card {
    flex-grow: 1;
    display: flex;
    flex-direction: column;
    height: 380px;
}

.log-list {
    list-style: none;
    overflow-y: auto;
    max-height: 290px;
    display: flex;
    flex-direction: column;
    gap: 0.6rem;
    padding-right: 0.25rem;
}

.log-item {
    font-size: 0.8rem;
    padding: 0.6rem 0.8rem;
    border-radius: 8px;
    background: rgba(255, 255, 255, 0.01);
    border: 1px solid rgba(255, 255, 255, 0.03);
    display: flex;
    gap: 0.75rem;
    align-items: flex-start;
    animation: slideIn 0.3s ease;
}

.log-time {
    font-family: 'Space Grotesk', sans-serif;
    color: var(--text-muted);
    white-space: nowrap;
}

.log-msg {
    color: var(--text-primary);
    flex-grow: 1;
}

.log-item.info {
    border-left: 3px solid var(--color-normal);
}

.log-item.warn {
    border-left: 3px solid var(--color-warning);
    background: rgba(245, 158, 11, 0.02);
}

.log-item.alert {
    border-left: 3px solid var(--color-danger);
    background: rgba(239, 68, 68, 0.03);
}

/* Modal Overlay Styling */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(5, 7, 13, 0.8);
    backdrop-filter: blur(8px);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    pointer-events: none;
    transition: var(--transition-smooth);
    z-index: 1000;
}

.modal-overlay.active {
    opacity: 1;
    pointer-events: all;
}

.modal-content {
    width: 90%;
    max-width: 400px;
    padding: 2rem;
    position: relative;
    transform: translateY(20px);
    transition: var(--transition-smooth);
}

.modal-overlay.active .modal-content {
    transform: translateY(0);
}

.modal-header-section {
    text-align: center;
    margin-bottom: 1.5rem;
}

.modal-header-section h2 {
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 0.25rem;
}

.modal-header-section p {
    font-size: 0.8rem;
    color: var(--text-secondary);
}

.modal-close {
    position: absolute;
    top: 1rem;
    right: 1rem;
    background: transparent;
    border: none;
    color: var(--text-muted);
    font-size: 1.2rem;
    cursor: pointer;
    transition: var(--transition-smooth);
}

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

.modal-actions {
    display: flex;
    justify-content: flex-end;
    gap: 0.75rem;
    margin-top: 1.5rem;
}

.login-error-msg {
    color: var(--color-danger);
    font-size: 0.8rem;
    margin-top: 0.5rem;
    text-align: center;
    display: none;
}

/* Footer Section */
footer.main-footer {
    text-align: center;
    padding: 2rem;
    font-size: 0.8rem;
    color: var(--text-muted);
    border-top: 1px solid rgba(255, 255, 255, 0.04);
    margin-top: auto;
}

/* Animations Definitions */
@keyframes pulse {
    0% { transform: scale(1); opacity: 1; }
    50% { transform: scale(1.1); opacity: 0.8; }
    100% { transform: scale(1); opacity: 1; }
}

@keyframes pulse-yellow {
    0% { box-shadow: 0 0 15px rgba(245, 158, 11, 0.3); }
    50% { box-shadow: 0 0 35px rgba(245, 158, 11, 0.6); }
    100% { box-shadow: 0 0 15px rgba(245, 158, 11, 0.3); }
}

@keyframes flash-red {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.4; }
}

@keyframes flash-yellow {
    0%, 100% { opacity: 1; border-color: rgba(245, 158, 11, 0.3); }
    50% { opacity: 0.6; border-color: rgba(245, 158, 11, 0.6); }
}

@keyframes slideIn {
    from { transform: translateY(8px); opacity: 0; }
    to { transform: translateY(0); opacity: 1; }
}

/* Responsive Breakpoints */
@media (max-width: 1200px) {
    .sensor-card {
        grid-column: span 6;
    }
    .chart-panel {
        grid-column: span 12;
    }
    .side-panel {
        grid-column: span 12;
        flex-direction: row;
    }
    .settings-panel, .activity-log-card {
        flex: 1;
    }
}

@media (max-width: 768px) {
    .app-container {
        padding: 0.75rem;
        gap: 0.75rem;
    }
    header.main-header {
        flex-direction: column;
        gap: 1rem;
        align-items: flex-start;
        padding: 1rem;
    }
    .header-controls {
        width: 100%;
        justify-content: space-between;
    }
    .sensor-card {
        grid-column: span 12;
    }
    .side-panel {
        flex-direction: column;
    }
    .chart-container-wrapper {
        height: 250px;
    }
}