/* CSS Variables for consistent theming */
:root {
    --primary-color: #7868E6;
    --secondary-color: #B8B5FF;
    --background-color: #ffffff;
    --light-blue: #E4FBFF;
    --accent-color: #FFB4B4;
    --text-dark: #2c2c2c;
    --text-light: #666;
    --white: #ffffff;
    --shadow: 0 4px 20px rgba(120, 104, 230, 0.1);
    --border-radius: 12px;
    --transition: all 0.3s ease;
    
    /* Device bar heights - will be set by config-device-bar.js */
    --statusbar-height: 28px;
    --actionbar-height: 60px;
}

/* Force white background for all screen sizes */
@media (max-width: 768px) {
    :root {
        --background-color: #ffffff;
        --white: #ffffff;
    }
    
    body {
        background: #ffffff !important;
        background-image: none !important;
    }
    
    .statusbar-spacer,
    .actionbar-spacer {
        background: #ffffff !important;
        background-image: none !important;
    }
    
    .app-header,
    .status-card,
    .timer-card,
    .stat-card,
    .history-list,
    .modal-content,
    .app-footer {
        background: #ffffff !important;
        background-image: none !important;
    }
    
    .bottom-nav {
        background: #ffffff !important;
        background-image: none !important;
    }
}

/* Force white background for desktop and larger screens */
@media (min-width: 769px) {
    :root {
        --background-color: #ffffff;
        --white: #ffffff;
    }
    
    body {
        background: #ffffff !important;
        background-image: none !important;
    }
    
    .app-header,
    .status-card,
    .timer-card,
    .stat-card,
    .history-list,
    .modal-content,
    .app-footer {
        background: #ffffff !important;
        background-image: none !important;
    }
    
    .app-container {
        padding-bottom: calc(var(--actionbar-height) + 80px); /* Space for action bar + bottom nav */
    }
}

/* Dark mode completely disabled - always white background */

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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: var(--background-color);
    color: var(--text-dark);
    line-height: 1.6;
    min-height: 100vh;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Force white background on all devices */
@media (max-width: 768px) {
    body {
        background: #ffffff !important;
    }
}

@media (min-width: 769px) {
    body {
        background: #ffffff !important;
    }
}

/* Force white background for all screen sizes - global override */
* {
    background-color: inherit;
}

html {
    background: #ffffff !important;
}

body,
.app-header,
.status-card,
.timer-card,
.stat-card,
.history-list,
.modal-content,
.app-footer,
.bottom-nav,
.statusbar-spacer,
.actionbar-spacer {
    background: #ffffff !important;
    background-image: none !important;
}

/* Device Bar Spacers */
.device-bar-spacer {
    position: fixed;
    left: 0;
    right: 0;
    z-index: 10001;
    background: transparent;
    pointer-events: none;
}

.statusbar-spacer {
    top: 0;
    height: var(--statusbar-height);
    background: var(--background-color);
    border-bottom: 1px solid rgba(120, 104, 230, 0.1);
}

.actionbar-spacer {
    bottom: 0;
    height: var(--actionbar-height);
    background: var(--background-color);
    border-top: 1px solid rgba(120, 104, 230, 0.1);
}

.app-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    padding-top: var(--statusbar-height);
    padding-bottom: calc(var(--actionbar-height) + 80px); /* Space for action bar + bottom nav */
}

/* Header Styles */
.app-header {
    background: var(--white);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    margin: 20px 0;
    padding: 20px;
    text-align: center;
    position: relative;
    overflow: hidden;
}


.app-header img {
    max-width: 120px;
    height: auto;
    margin-bottom: 15px;
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(120, 104, 230, 0.2);
    transition: var(--transition);
}

.app-header img:hover {
    transform: scale(1.05);
    box-shadow: 0 4px 12px rgba(120, 104, 230, 0.3);
}

.app-header h1 {
    color: var(--primary-color);
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 15px;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.1);
}
.color-fs{
    color: var(--primary-color);
}

.app-nav {
    display: flex;
    justify-content: center;
    gap: 20px;
    flex-wrap: wrap;
}

.nav-link {
    color: var(--text-light);
    text-decoration: none;
    padding: 10px 20px;
    border-radius: 25px;
    transition: var(--transition);
    font-weight: 500;
    position: relative;
    overflow: hidden;
}

.nav-link::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.5s;
}

.nav-link:hover::before {
    left: 100%;
}

.nav-link:hover,
.nav-link.active {
    background: var(--primary-color);
    color: var(--white);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(120, 104, 230, 0.3);
}

/* Main Content */
.main-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 30px;
}

/* Status Section */
.status-section {
    text-align: center;
}

.status-card {
    background: var(--white);
    border-radius: var(--border-radius);
    padding: 25px;
    box-shadow: var(--shadow);
    position: relative;
    overflow: hidden;
}


.status-title {
    color: var(--primary-color);
    font-size: 1.5rem;
    margin-bottom: 15px;
    font-weight: 600;
}

.status-indicator {
    position: relative;
    z-index: 1;
}

.status-text {
    font-size: 1.2rem;
    color: black;
    font-weight: 500;
    padding: 10px 20px;
    border-radius: 25px;
    background: var(--light-blue);
    display: inline-block;
    transition: var(--transition);
}

.status-indicator.active .status-text {
    background: var(--accent-color);
    animation: pulse 2s infinite;
}

.status-indicator.alert .status-text {
    background: #ff4444;
    color: white;
    animation: blink 1s infinite;
}

@keyframes pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.05); }
}

@keyframes blink {
    0%, 50% { opacity: 1; }
    51%, 100% { opacity: 0.5; }
}

/* Timer Section */
.timer-section {
    text-align: center;
}

.timer-card {
    background: var(--white);
    border-radius: var(--border-radius);
    padding: 40px;
    box-shadow: var(--shadow);
    position: relative;
    overflow: hidden;
}


.timer-display {
    font-size: 4rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 15px;
    font-family: 'Courier New', monospace;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.1);
    position: relative;
    z-index: 1;
}

.timer-separator {
    animation: blink-separator 1s infinite;
}

@keyframes blink-separator {
    0%, 50% { opacity: 1; }
    51%, 100% { opacity: 0.3; }
}

.timer-label {
    font-size: 1.2rem;
    color: var(--text-light);
    font-weight: 500;
    position: relative;
    z-index: 1;
}

/* Control Section */
.control-section {
    text-align: center;
    margin: 20px 0;
}

.control-button {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: var(--white);
    border: none;
    border-radius: 50px;
    padding: 25px 50px;
    font-size: 1.5rem;
    font-weight: 700;
    cursor: pointer;
    transition: var(--transition);
    box-shadow: 0 8px 25px rgba(120, 104, 230, 0.3);
    position: relative;
    overflow: hidden;
    display: inline-flex;
    align-items: center;
    gap: 15px;
    min-width: 280px;
    justify-content: center;
}

.control-button::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.5s;
}

.control-button:hover::before {
    left: 100%;
}

.control-button:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 35px rgba(120, 104, 230, 0.4);
}

.control-button:active {
    transform: translateY(-1px);
}

.control-button.active {
    background: linear-gradient(135deg, #ff4444, var(--accent-color));
    animation: pulse-button 2s infinite;
}

.control-button.active .button-icon {
    animation: rotate 2s infinite linear;
}

@keyframes pulse-button {
    0%, 100% { box-shadow: 0 8px 25px rgba(255, 68, 68, 0.3); }
    50% { box-shadow: 0 12px 35px rgba(255, 68, 68, 0.5); }
}

@keyframes rotate {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

.button-icon {
    font-size: 1.2rem;
    transition: var(--transition);
}

/* Statistics Section */
.stats-section {
    margin: 30px 0;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
}

.stat-card {
    background: var(--white);
    border-radius: var(--border-radius);
    padding: 25px;
    text-align: center;
    box-shadow: var(--shadow);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}


.stat-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 30px rgba(120, 104, 230, 0.15);
}

.stat-value {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 10px;
    font-family: 'Courier New', monospace;
    position: relative;
    z-index: 1;
}

.stat-label {
    color: var(--text-light);
    font-weight: 500;
    text-transform: uppercase;
    font-size: 0.9rem;
    letter-spacing: 1px;
    position: relative;
    z-index: 1;
}

/* History Section */
.history-section {
    margin: 30px 0;
}

.history-section h3 {
    color: var(--primary-color);
    font-size: 1.8rem;
    margin-bottom: 20px;
    text-align: center;
    font-weight: 600;
}

.history-list {
    background: var(--white);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    overflow: hidden;
    position: relative;
}


.history-item {
    padding: 20px;
    border-bottom: 1px solid rgba(120, 104, 230, 0.1);
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: var(--transition);
    position: relative;
    z-index: 1;
}

.history-item:last-child {
    border-bottom: none;
}

.history-item:hover {
    background: rgba(120, 104, 230, 0.05);
}

.history-time {
    font-weight: 600;
    color: var(--primary-color);
    font-size: 1.1rem;
}

.history-details {
    display: flex;
    gap: 20px;
    align-items: center;
    flex-wrap: wrap;
}

.history-duration,
.history-interval {
    color: var(--text-light);
    font-size: 0.9rem;
    background: var(--light-blue);
    padding: 5px 12px;
    border-radius: 15px;
    font-weight: 500;
}

.empty-state {
    text-align: center;
    padding: 40px;
    color: var(--text-light);
    font-style: italic;
    position: relative;
    z-index: 1;
}

/* Modal Styles */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.8);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
    padding: 20px;
}

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

.modal-content {
    background: var(--white);
    border-radius: var(--border-radius);
    max-width: 500px;
    width: 100%;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    transform: scale(0.9);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.modal-overlay.active .modal-content {
    transform: scale(1);
}


.modal-header {
    background: linear-gradient(135deg, #ff4444, var(--accent-color));
    color: white;
    padding: 25px;
    text-align: center;
    position: relative;
    z-index: 1;
}

.modal-header h2 {
    font-size: 2rem;
    font-weight: 700;
    margin: 0;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.2);
}

.modal-body {
    padding: 30px;
    text-align: center;
    position: relative;
    z-index: 1;
}

.alert-message {
    font-size: 1.8rem;
    font-weight: 700;
    color: #ff4444;
    margin-bottom: 15px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.alert-details {
    font-size: 1.1rem;
    color: var(--text-dark);
    margin-bottom: 25px;
    line-height: 1.6;
}

.alert-stats {
    display: flex;
    justify-content: space-around;
    margin-bottom: 20px;
    flex-wrap: wrap;
    gap: 15px;
}

.alert-stat {
    background: var(--light-blue);
    padding: 15px;
    border-radius: var(--border-radius);
    font-size: 1rem;
    min-width: 150px;
}

.alert-stat strong {
    color: var(--primary-color);
}

.modal-footer {
    padding: 25px;
    display: flex;
    gap: 15px;
    justify-content: center;
    flex-wrap: wrap;
    position: relative;
    z-index: 1;
}

.modal-button {
    padding: 12px 25px;
    border: none;
    border-radius: 25px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    min-width: 120px;
}

.modal-button.primary {
    background: var(--primary-color);
    color: white;
}

.modal-button {
    background: var(--background-color);
    color: var(--text-dark);
}

.modal-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}

/* Footer */
.app-footer {
    background: var(--white);
    border-radius: var(--border-radius);
    padding: 20px;
    text-align: center;
    margin: 30px 0 20px;
    box-shadow: var(--shadow);
    position: relative;
    overflow: hidden;
}


.app-footer p {
    color: var(--text-light);
    font-size: 0.9rem;
    margin: 0;
    position: relative;
    z-index: 1;
}

/* Bottom Navigation for All Screen Sizes */
.bottom-nav {
    position: fixed;
    bottom: var(--actionbar-height);
    left: 0;
    right: 0;
    background: var(--white);
    border-top: 1px solid rgba(120, 104, 230, 0.1);
    display: flex;
    justify-content: space-around;
    align-items: center;
    padding: 8px 0;
    z-index: 10000;
    box-shadow: 0 -2px 10px rgba(120, 104, 230, 0.1);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    margin-bottom: 8px;
}

.bottom-nav-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-decoration: none;
    color: var(--text-light);
    padding: 8px 12px;
    border-radius: 8px;
    transition: var(--transition);
    min-width: 60px;
}

.bottom-nav-item:hover,
.bottom-nav-item.active {
    color: var(--primary-color);
    background: rgba(120, 104, 230, 0.1);
    transform: translateY(-2px);
}

.nav-icon {
    width: 24px;
    height: 24px;
    margin-bottom: 4px;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
}

.nav-icon svg {
    width: 100%;
    height: 100%;
    stroke: currentColor;
    transition: var(--transition);
}

.nav-label {
    font-size: 0.7rem;
    font-weight: 500;
    text-align: center;
    line-height: 1;
}

.bottom-nav-item.active .nav-icon {
    transform: scale(1.1);
}

.bottom-nav-item.active .nav-icon svg {
    stroke-width: 2.5;
}

.bottom-nav-item:hover .nav-icon {
    transform: scale(1.05);
}

.bottom-nav-item:hover .nav-icon svg {
    stroke-width: 2.2;
}

/* Responsive Design */
@media (max-width: 768px) {
    .app-container {
        padding: 0 15px;
        padding-top: var(--statusbar-height);
        padding-bottom: calc(var(--actionbar-height) + 80px); /* Space for action bar + bottom nav */
    }
    
    .app-nav {
        display: none; /* Hide desktop nav on mobile */
    }
    
    .app-header {
        margin-bottom: 10px;
    }
    
    .app-header img {
        max-width: 100px;
        margin-bottom: 10px;
    }
    
    .app-header h1 {
        font-size: 2rem;
        margin-bottom: 10px;
    }
    
    .timer-display {
        font-size: 3rem;
    }
    
    .control-button {
        padding: 20px 40px;
        font-size: 1.3rem;
        min-width: 250px;
    }
    
    .stats-grid {
        grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
        gap: 15px;
    }
    
    .stat-value {
        font-size: 2rem;
    }
    
    .history-item {
        flex-direction: column;
        align-items: flex-start;
        gap: 10px;
    }
    
    .history-details {
        justify-content: flex-start;
    }
    
    .alert-stats {
        flex-direction: column;
        align-items: center;
    }
    
    .modal-footer {
        flex-direction: column;
    }
    
    /* Improve touch targets */
    .control-button {
        min-height: 60px;
    }
    
    .nav-link {
        min-height: 44px;
        display: flex;
        align-items: center;
        justify-content: center;
    }
    
    /* Better spacing for mobile */
    .main-content {
        gap: 20px;
    }
    
    .status-card,
    .timer-card,
    .stat-card {
        padding: 20px;
    }
}

@media (max-width: 480px) {
    .app-container {
        padding: 0 10px;
        padding-top: var(--statusbar-height);
        padding-bottom: calc(var(--actionbar-height) + 80px);
    }
    
    .app-header {
        padding: 15px;
        margin: 10px 0;
    }
    
    .app-header img {
        max-width: 80px;
        margin-bottom: 8px;
    }
    
    .app-header h1 {
        font-size: 1.8rem;
    }
    
    .timer-display {
        font-size: 2.5rem;
    }
    
    .timer-card {
        padding: 30px 20px;
    }
    
    .control-button {
        padding: 18px 30px;
        font-size: 1.2rem;
        min-width: 220px;
        min-height: 56px;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
        gap: 12px;
    }
    
    .stat-card {
        padding: 18px;
    }
    
    .stat-value {
        font-size: 1.8rem;
    }
    
    .nav-link {
        padding: 8px 16px;
        font-size: 0.9rem;
    }
    
    /* Bottom nav adjustments for very small screens */
    .bottom-nav {
        padding: 6px 0;
    }
    
    .nav-icon {
        width: 20px;
        height: 20px;
    }
    
    .nav-label {
        font-size: 0.65rem;
    }
    
    .bottom-nav-item {
        padding: 6px 8px;
        min-width: 50px;
    }
    
    /* Force white background for very small screens */
    body,
    .app-header,
    .status-card,
    .timer-card,
    .stat-card,
    .history-list,
    .modal-content,
    .app-footer,
    .bottom-nav,
    .statusbar-spacer,
    .actionbar-spacer {
        background: #ffffff !important;
        background-image: none !important;
    }
    
    /* Better modal for small screens */
    .modal-content {
        margin: 10px;
        max-height: calc(100vh - 20px);
        overflow-y: auto;
    }
    
    .modal-header,
    .modal-body,
    .modal-footer {
        padding: 20px;
    }
    
    /* Improve history display */
    .history-item {
        padding: 15px;
    }
    
    .history-time {
        font-size: 1rem;
    }
    
    .history-duration,
    .history-interval {
        font-size: 0.8rem;
        padding: 4px 10px;
    }
}

/* Accessibility Improvements */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* Focus styles for keyboard navigation */
.control-button:focus,
.nav-link:focus,
.modal-button:focus,
.bottom-nav-item:focus {
    outline: 3px solid var(--primary-color);
    outline-offset: 2px;
}

/* Improve touch targets for mobile */
@media (max-width: 768px) {
    .control-button:focus,
    .modal-button:focus,
    .bottom-nav-item:focus {
        outline-width: 2px;
        outline-offset: 1px;
    }
}

/* High contrast mode support */
@media (prefers-contrast: high) {
    :root {
        --shadow: 0 4px 8px rgba(0, 0, 0, 0.5);
    }
    
    .control-button,
    .nav-link.active {
        border: 2px solid var(--text-dark);
    }
}

/* Print styles */
@media print {
    .control-section,
    .modal-overlay,
    .app-nav {
        display: none !important;
    }
    
    .app-container {
        max-width: none;
        padding: 0;
        padding-bottom: 0 !important;
    }
    
    .main-content {
        gap: 20px;
    }
    
    * {
        box-shadow: none !important;
        background: white !important;
        color: black !important;
    }
}

/* Additional mobile optimizations */
@media (max-width: 768px) {
    /* Improve scrolling performance */
    * {
        -webkit-overflow-scrolling: touch;
    }
    
    /* Prevent horizontal scroll */
    body {
        overflow-x: hidden;
    }
    
    /* Better button press feedback */
    .control-button:active {
        transform: scale(0.98);
        transition: transform 0.1s ease;
    }
    
    /* Smooth scrolling for anchor links */
    html {
        scroll-behavior: smooth;
    }
    
    /* Better focus visibility on mobile */
    .control-button:focus-visible,
    .bottom-nav-item:focus-visible {
        outline: 2px solid var(--primary-color);
        outline-offset: 2px;
    }
}