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

body {
    font-family: 'Montserrat', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    background-color: #1a1a1a;
    min-height: 100vh;
    color: #e0e0e0;
    line-height: 1.6;
    padding-bottom: 200px; /* Space for sticky footer with controls */
    display: flex;
    flex-direction: column;
}

.container {
    max-width: 600px;
    margin: 0 auto;
    flex: 1;
    display: flex;
    flex-direction: column;
}

/* Sticky Footer */
.sticky-footer {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 15px 20px;
    z-index: 1000;
}

.footer-controls {
    max-width: 600px;
    margin: 0 auto 15px;
    display: flex;
    gap: 15px;
    justify-content: space-between;
    flex-wrap: wrap;
}

.footer-controls .timer-subsection {
    flex: 1;
    min-width: 280px;
    margin-top: 0;
    padding: 10px 5px;
    height: 80px;
}

.footer-controls .timer-subsection .time-display {
    font-size: 1.5rem;
    min-height: 50px;
    padding: 10px;
}

.footer-controls .duration-display,
.footer-controls .interval-display {
    min-height: 50px;
    font-size: 0.9rem;
}

.footer-controls .value-display {
    font-size: 1rem;
    padding: 6px 12px;
    min-width: 50px;
}

.footer-controls .btn {
    min-height: 40px;
    font-size: 1rem;
    padding: 10px 15px;
}

.sticky-footer .stopwatch-controls {
    max-width: 600px;
    margin: 0 auto;
    display: flex;
    gap: 15px;
    justify-content: space-between;
    flex-wrap: wrap;
}

.sticky-footer .audio-controls {
    max-width: 600px;
    margin: 10px auto 0;
    display: flex;
    gap: 10px;
    justify-content: center;
    flex-wrap: wrap;
}

.sticky-footer .audio-controls .btn {
    padding: 8px 15px;
    font-size: 0.9rem;
    min-height: 35px;
}

/* Header */
header {
    margin: 20px auto;
    flex-shrink: 0;
    min-height: 0;
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 20px;
    max-width: 600px;
    margin: 0 auto;
    padding: 0 25px;
}

.header-left {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 20px;

}

.header-right {
    flex: 0 0 auto;
    display: flex;
    align-items: center;
}

header p {
    color: #6a6a6a;
    margin: 0;
}

header h1 {
    color: #ffffff;
    font-size: 2.5rem;
    font-weight: 700;
    text-shadow: 0 2px 4px rgba(0,0,0,0.5);
}

/* Section Styles */
section {
    padding: 0px 25px;
    margin-bottom: 25px;
}

/* Stopwatch Section - Fill available space */
.stopwatch-section {
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
    align-items: center;
    flex: 1;
    padding: 20px 25px 120px 25px; /* Extra bottom padding for sticky footer */
    min-height: 0; /* Allow flex item to shrink */
    padding-top: 25vh; /* Fixed elastic value padding from top to approximate center */
}

/* Mobile Safari viewport height fix */
@supports (-webkit-touch-callout: none) {
    .stopwatch-section {
        padding-top: 20vh; /* Reduced padding for mobile Safari */
    }
}

/* Additional mobile Safari specific adjustments */
@media screen and (max-width: 480px) and (-webkit-min-device-pixel-ratio: 2) {
    .stopwatch-section {
        padding-top: 15vh; /* Further reduced for smaller mobile screens */
    }
}

section h2 {
    color: #ffffff;
    font-size: 1.5rem;
    margin-bottom: 20px;
    text-align: center;
    font-weight: 600;
}

/* Timer Subsection Styles */
.timer-subsection {
    border-radius: 15px;
    padding: 20px;
    margin-top: 20px;
    background-color: #2a2a2a;
    border-radius: 20px;
}

/* Clickable Subsection Styles */
.clickable-subsection {
    cursor: pointer;
    transition: all 0.2s ease;
    position: relative;
    overflow: hidden;
    height: 80px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.clickable-subsection:active {
    transform: translateY(0);
    box-shadow: 0 3px 10px rgba(0,0,0,0.2);
}

/* Subsection Header */
.subsection-header {
    display: flex;
    align-items: center;
    gap: 4px;
}

.subsection-icon {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #6a6a6a;
    transition: all 0.2s ease;
    margin: 0;
    padding: 0;
}

.subsection-icon svg {
    width: 36px;
    height: 36px;
}

.subsection-title {
    font-size: 1rem;
    font-weight: 700;
    color: #cacaca;
    letter-spacing: 0.5px;
}

/* Subsection Value */
.subsection-value {
    font-size: 1.2rem;
    font-weight: 700;
    color: #ffffff;
    text-align: center;
    margin-bottom: 15px;
    padding: 0 10px;
}

/* Timer duration display - right aligned */
#timer-duration-display {
    text-align: right;
}

/* Metronome interval display - right aligned */
#metronome-interval-display {
    text-align: right;
}



.timer-subsection h3 {
    color: #ffffff;
    font-size: 1.2rem;
    margin-bottom: 15px;
    text-align: center;
    font-weight: 600;
}

.timer-subsection .time-display {
    font-size: 2rem;
    padding: 15px;
    min-height: 60px;
}

/* Time Display */
.time-display {
    font-family: 'Space Mono', 'Courier New', monospace;
    font-size: 4rem;
    font-weight: bold;
    text-align: center;
    color: #6a6a6a;
    padding: 0 20px;
    margin: 20px 0;
    min-height: 80px;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* Timer Duration Display Main */
.timer-duration-display-main {
    text-align: center;
    margin-top: 10px;
    padding: 15px 20px;
}

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

.timer-duration-label {
    font-size: 1.2rem;
    font-weight: 600;
    color: #ffcc00;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 5px;
}

.timer-duration-time {
    font-family: 'Space Mono', 'Courier New', monospace;
    font-size: 4rem;
    font-weight: bold;
    color: #ffffff;
    text-shadow: 0 0 10px rgba(255, 255, 255, 0.32);
    line-height: 1;
}

/* Button Styles */
.btn {
    font-family: 'Montserrat', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    height: 80px;
    padding: 15px 25px;
    border: none;
    border-radius: 20px;
    font-size: 1.6rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    min-height: 50px;
    min-width: 80px;
    touch-action: manipulation;
    flex: 1;
    -webkit-tap-highlight-color: transparent;
    -webkit-touch-callout: none;
    -webkit-user-select: none;
    user-select: none;
}

/* iOS touch state fixes */
.btn:active {
    transform: scale(0.98);
    transition: transform 0.1s ease;
}

.btn:active:not(:disabled) {
    transform: scale(0.98);
}

/* Reset transform on touch end */
.btn:not(:active) {
    transform: none;
}

.hidden {
    display: none !important;
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.btn-primary {
    background-color: #ffcc00;
    color: #1a1a2e;
    font-weight: 700;
}

.btn-primary:active:not(:disabled) {
    transform: scale(0.98);
}

.btn-secondary {
    color: #ffcc00;
    border: 2px solid #ffcc00;
    background-color: transparent;
}

.btn-secondary:active:not(:disabled) {
    transform: scale(0.98);
}

.btn-secondary:disabled {
    color: #6a6a6a;
    border: 2px solid #2a2a2a;
    background-color: #2a2a2a;
    cursor: not-allowed;
    opacity: 0.5;
}

.btn-reset {
    background: #FF4E4E;
    color: #fff;
}

.btn-reset:active:not(:disabled) {
    transform: scale(0.98);
}

.btn-warning {
    background: linear-gradient(135deg, #ff9ff3, #feca57);
    color: #1a1a2e;
}

.btn-warning:active:not(:disabled) {
    transform: scale(0.98);
}

.btn-settings {
    background-color: transparent;
    color: #8A8A8A;
    font-size: 0.85rem;
    padding: 0;
    height: 36px;
    min-width: 36px;
    min-height: 36px;
    flex: none;
    width: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.btn-settings:active:not(:disabled) {
    transform: scale(0.98);
}

.btn-debug {
    background-color: transparent;
    color: #8A8A8A;
    border: 1px solid #8A8A8A;
    font-size: 0.85rem;
    border-radius: 14px;
    padding: 10px 20px;
    min-height: 35px;
    height: auto;
    min-width: auto;
    flex: none;
    white-space: nowrap;
    width: auto;
}

.btn-debug:active:not(:disabled) {
    transform: scale(0.98);
}

.debug-text {
    line-height: 1.2;
    font-size: 0.9rem;
    color: #8A8A8A;
    text-align: center;
}

/* Stopwatch Controls */
.stopwatch-controls {
    display: flex;
    gap: 15px;
    justify-content: center;
    flex-wrap: wrap;
}

/* Input Styles */
.number-input {
    width: 100%;
    padding: 12px 15px;
    border: 2px solid rgba(255, 255, 255, 0.2);
    border-radius: 10px;
    font-size: 1.6rem;
    background-color: #0a0a0a;
    color: #e0e0e0;
    transition: border-color 0.3s ease;
}

.number-input:focus {
    outline: none;
    border-color: #00ff88;
    background: rgba(30, 30, 45, 0.9);
}

/* Label Styles */
label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    color: #ffffff;
}

.duration-display label,
.interval-display label {
    display: inline-block;
    margin-bottom: 0;
    white-space: nowrap;
}

/* Value Display Styles */
.value-display {
    display: inline-block;
    padding: 8px 15px;
    background-color: rgba(255, 255, 255, 0.1);
    border-radius: 8px;
    color: #00ff88;
    font-weight: 600;
    font-size: 1.1rem;
    margin-left: 10px;
    min-width: 60px;
    text-align: center;
}

.duration-display,
.interval-display {
    display: flex;
    flex-direction: row;
    align-items: center;
    gap: 15px;
    min-height: 80px;
    justify-content: center;
}

/* Metronome Controls */
.metronome-controls {
    display: flex;
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
}

.toggle-control {
    display: flex;
    flex-direction: column;
    gap: 20px;
}





/* Timer Controls */
.timer-controls {
    display: flex;
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
}

.timer-display {
    min-height: 80px;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* Modal Styles */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(10px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 2000;
    padding: 20px;
}

.modal-overlay.hidden {
    display: none;
}

.modal-content {
    background: linear-gradient(135deg, #1a1a2e 0%, #16213e 50%, #0f3460 100%);
    border-radius: 25px;
    max-width: 500px;
    width: 100%;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
    border: 2px solid rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(15px);
    animation: modalSlideIn 0.3s ease-out;
}

@keyframes modalSlideIn {
    from {
        opacity: 0;
        transform: translateY(-50px) scale(0.9);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 25px 30px 20px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.modal-header h3 {
    color: #ffffff;
    font-size: 1.8rem;
    font-weight: 600;
    margin: 0;
}

.modal-close-btn {
    background: none;
    border: none;
    color: #8A8A8A;
    font-size: 2rem;
    cursor: pointer;
    padding: 0;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    transition: all 0.3s ease;
}

.modal-close-btn:hover {
    background-color: rgba(255, 255, 255, 0.1);
    color: #ffffff;
}

.modal-body {
    padding: 30px;
}

.form-group {
    margin-bottom: 25px;
}

.form-group label {
    display: block;
    margin-bottom: 10px;
    font-weight: 600;
    color: #ffffff;
    font-size: 1.1rem;
}

.form-group .number-input {
    font-size: 1.2rem;
    padding: 15px;
}

.modal-footer {
    display: flex;
    gap: 15px;
    padding: 20px 30px 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.modal-footer .btn {
    flex: 1;
    min-height: 50px;
    font-size: 1.1rem;
}

/* Responsive Design */
@media (min-width: 768px) {
    .container {
        padding: 40px;
    }
    
    .time-display {
        font-size: 4rem;
        min-height: 100px;
    }
    
    .timer-duration-time {
        font-size: 4rem;
    }
    
    .timer-subsection .time-display {
        font-size: 2.5rem;
        min-height: 70px;
    }
    
    .btn {
        padding: 18px 30px;
        font-size: 1.2rem;
        min-height: 60px;
    }
    
    .metronome-controls {
        flex-direction: row;
        align-items: center;
        justify-content: space-between;
        gap: 30px;
    }
    
    .timer-controls {
        flex-direction: row;
        align-items: end;
    }
    
    .duration-display,
    .interval-display {
        flex: 1;
    }
    
    .timer-display {
        flex: 1;
    }
    
    .sticky-footer {
        padding: 40px;
    }
    
    .sticky-footer .stopwatch-controls {
        max-width: 600px;
    }
    
    .header-right {
        /* Hugs content */
    }
}

@media (max-width: 480px) {
    .timer-subsection {
        padding: 15px;
        margin-top: 15px;
    }
    
    .timer-subsection h3 {
        font-size: 1.1rem;
        margin-bottom: 12px;
    }
    
    .timer-subsection .time-display {
        font-size: 1.8rem;
        padding: 12px;
        min-height: 50px;
    }
    
    .timer-duration-display-main {
        padding: 12px 15px;
        margin-top: 8px;
    }
    
    .timer-duration-label {
        font-size: 0.8rem;
        margin-bottom: 3px;
    }
    
    .timer-duration-time {
        font-size: 3rem;
    }
    
    .metronome-controls {
        flex-direction: column;
        align-items: stretch;
    }
    
    .metronome-status {
        min-width: auto;
    }
    
    .clickable-subsection {
        height: 80px;
        padding: 15px;
    }
    
    .subsection-header {
        gap: 4px;
    }
    
    .subsection-icon {
        width: 36px;
        height: 36px;
        margin: 0;
        padding: 0;
    }
    
    .subsection-icon svg {
        width: 32px;
        height: 32px;
    }
    
    
    .subsection-value {
        font-size: 1.1rem;
        margin-bottom: 10px;
    }
    
    #timer-duration-display {
        text-align: right;
    }
    
    #metronome-interval-display {
        text-align: right;
    }
    

    
    .timer-controls {
        flex-direction: column;
        align-items: stretch;
    }
    
    .duration-display,
    .interval-display,
    .timer-display {
        min-height: 60px;
    }
    
    .sticky-footer {
        padding: 15px 15px;
    }
    
    .footer-controls {
        flex-direction: row;
        gap: 15px;
        flex-wrap: wrap;
    }
    
    .footer-controls .timer-subsection {
        min-width: 140px;
        flex: 1;
        height: 80px;
    }
    
    .footer-controls .timer-subsection .time-display {
        font-size: 1.3rem;
        min-height: 40px;
    }
    
    .footer-controls .duration-display,
    .footer-controls .interval-display {
        min-height: 40px;
        font-size: 0.8rem;
    }
    
    .footer-controls .value-display {
        font-size: 0.9rem;
        padding: 4px 8px;
        min-width: 40px;
    }
    
    .footer-controls .btn {
        min-height: 35px;
        font-size: 0.9rem;
        padding: 8px 12px;
    }
    
    .sticky-footer .stopwatch-controls {
        gap: 10px;
    }
    
    .sticky-footer .audio-controls {
        gap: 8px;
    }
    
    .sticky-footer .btn {
        min-height: 45px;
    }
    
    .sticky-footer .audio-controls .btn {
        padding: 8px 12px;
        font-size: 0.8rem;
        min-height: 35px;
    }
    
    .modal-content {
        margin: 10px;
    }
    
    .modal-header {
        padding: 20px 20px 15px;
    }
    
    .modal-body {
        padding: 20px;
    }
    
    .modal-footer {
        padding: 15px 20px 25px;
    }
    
    .header-right {
        /* Hugs content */
    }
}

/* Animation for active states */
@keyframes pulse {
    0% { transform: scale(1); }
    50% { transform: scale(1.05); }
    100% { transform: scale(1); }
}

/* Synchronized pulse animation for clock sync */
@keyframes syncPulse {
    0% { 
        transform: scale(1);
        text-shadow: 0 0 6px rgba(255, 230, 0, 0.5);
    }
    50% { 
        transform: scale(1.02);
        text-shadow: 0 0 12px rgba(255, 230, 0, 0.8);
    }
    100% { 
        transform: scale(1);
        text-shadow: 0 0 6px rgba(255, 230, 0, 0.5);
    }
}

.sync-pulse {
    animation: syncPulse 0.3s ease-in-out;
}

.time-display.active {
    color:#ffcc00;
    text-shadow: 0 0 6px rgba(255, 230, 0, 0.5);
}

/* Focus styles for accessibility */
.number-input:focus {
    outline: 2px solid #ffcc00;
    outline-offset: 2px;
}

/* iOS touch improvements */
@media (hover: none) and (pointer: coarse) {
    .btn:hover {
        transform: none;
        box-shadow: none;
    }
    
    .btn:active {
        transform: scale(0.98);
        transition: transform 0.1s ease;
    }
}

/* High contrast mode support */
@media (prefers-contrast: high) {
    .btn {
        border: 2px solid currentColor;
    }
    
    .time-display {
        border: 3px solid #00ff88;
    }
}

/* Summary Screen Styles */
.summary-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(10px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 2000;
    padding: 20px;
}

.summary-overlay.hidden {
    display: none;
}

.summary-content {
    background: linear-gradient(135deg, #1a1a2e 0%, #16213e 50%, #0f3460 100%);
    border-radius: 25px;
    padding: 40px;
    max-width: 500px;
    width: 100%;
    text-align: center;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
    border: 2px solid rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(15px);
}

.summary-header h2 {
    color: #ffffff;
    font-size: 2.5rem;
    margin-bottom: 10px;
    font-weight: 700;
}

.summary-subtitle {
    color: #b0b0b0;
    font-size: 1.1rem;
    margin-bottom: 30px;
}

.summary-stats {
    display: flex;
    flex-direction: column;
    gap: 25px;
    margin-bottom: 40px;
}

.summary-stat {
    background: rgba(30, 30, 45, 0.8);
    border-radius: 15px;
    padding: 20px;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.stat-label {
    color: #b0b0b0;
    font-size: 0.9rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 8px;
}

.stat-value {
    color: #00ff88;
    font-size: 2rem;
    font-weight: bold;
    font-family: 'Space Mono', 'Courier New', monospace;
    text-shadow: 0 0 10px rgba(0, 255, 136, 0.5);
}

.summary-actions {
    display: flex;
    gap: 15px;
    justify-content: center;
    flex-wrap: wrap;
}

.summary-actions .btn {
    min-width: 120px;
}

/* Responsive design for summary screen */
@media (max-width: 480px) {
    .summary-content {
        padding: 30px 20px;
        margin: 10px;
    }
    
    .summary-header h2 {
        font-size: 2rem;
    }
    
    .stat-value {
        font-size: 1.5rem;
    }
    
    .summary-actions {
        flex-direction: column;
    }
    
    .summary-actions .btn {
        width: 100%;
    }
}