/* CSS Variables for Light/Dark Theme */
:root {
–bg-primary: #ffffff;
–bg-secondary: #f8fafc;
–bg-card: #ffffff;
–text-primary: #1f2937;
–text-secondary: #6b7280;
–text-muted: #9ca3af;
–border-color: #e5e7eb;
–shadow: rgba(0, 0, 0, 0.1);
}

.dark {
–bg-primary: #111827;
–bg-secondary: #1f2937;
–bg-card: #374151;
–text-primary: #ffffff;
–text-secondary: #d1d5db;
–text-muted: #9ca3af;
–border-color: #4b5563;
–shadow: rgba(0, 0, 0, 0.3);
}

/* Reset and Base Styles */

- {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  }

body {
font-family: -apple-system, BlinkMacSystemFont, ‘Segoe UI’, ‘Roboto’, sans-serif;
background: var(–bg-primary);
color: var(–text-primary);
min-height: 100vh;
transition: all 0.3s ease;
}

.container {
max-width: 1200px;
margin: 0 auto;
padding: 0 1rem;
}

/* Header */
.header {
background: var(–bg-card);
border-bottom: 1px solid var(–border-color);
padding: 1rem 0;
}

.header .container {
display: flex;
justify-content: space-between;
align-items: center;
}

.logo {
font-size: 1.5rem;
font-weight: bold;
color: var(–text-primary);
}

.theme-toggle {
background: var(–bg-secondary);
border: 1px solid var(–border-color);
color: var(–text-primary);
padding: 0.5rem 1rem;
border-radius: 8px;
cursor: pointer;
transition: all 0.2s;
}

.theme-toggle:hover {
background: var(–border-color);
}

/* Navigation */
.tab-navigation {
display: flex;
background: var(–bg-card);
border-bottom: 1px solid var(–border-color);
overflow-x: auto;
}

.tab {
background: none;
border: none;
color: var(–text-secondary);
padding: 1rem 1.5rem;
cursor: pointer;
border-bottom: 2px solid transparent;
transition: all 0.2s;
white-space: nowrap;
font-size: 0.875rem;
}

.tab:hover {
color: var(–text-primary);
background: var(–bg-secondary);
}

.tab.active {
color: #3b82f6;
border-bottom-color: #3b82f6;
background: var(–bg-secondary);
}

/* Main Content */
.main-content {
padding: 2rem 0;
min-height: calc(100vh - 120px);
}

.screen {
display: none;
min-height: 100%;
}

.screen.active {
display: block;
}

/* Timer Container */
.timer-container {
max-width: 800px;
margin: 0 auto;
padding: 2rem;
}

/* Timer Display */
.timer-display {
text-align: center;
margin-bottom: 3rem;
}

.time-digits {
font-size: clamp(3rem, 8vw, 6rem);
font-weight: bold;
font-family: ‘Courier New’, monospace;
color: #e53935;
margin-bottom: 2rem;
text-shadow: 0 0 20px rgba(229, 57, 53, 0.3);
line-height: 1;
}

/* Progress Bar */
.progress-container {
margin: 2rem 0;
}

.progress-background {
width: 100%;
height: 12px;
background: var(–bg-secondary);
border-radius: 6px;
overflow: hidden;
position: relative;
box-shadow: inset 0 2px 4px var(–shadow);
}

.progress-bar {
height: 100%;
background: linear-gradient(to right, #10b981, #f59e0b, #ef4444);
transform-origin: left;
transition: transform 1s linear;
}

.progress-elapsed {
position: absolute;
top: 0;
right: 0;
height: 100%;
background: rgba(239, 68, 68, 0.8);
transition: width 1s linear;
}

/* Button Styles */
.btn {
padding: 0.75rem 1.5rem;
border: none;
border-radius: 8px;
font-weight: 500;
cursor: pointer;
transition: all 0.2s ease;
font-size: 0.875rem;
display: inline-flex;
align-items: center;
gap: 0.5rem;
text-decoration: none;
}

.btn:hover {
transform: translateY(-1px);
box-shadow: 0 4px 8px var(–shadow);
}

.btn:active {
transform: translateY(0);
}

.btn-primary {
background: linear-gradient(135deg, #3b82f6, #1d4ed8);
color: white;
}

.btn-primary:hover {
background: linear-gradient(135deg, #2563eb, #1e40af);
}

.btn-secondary {
background: #6b7280;
color: white;
}

.btn-secondary:hover {
background: #4b5563;
}

.btn-warning {
background: #f59e0b;
color: white;
}

.btn-warning:hover {
background: #d97706;
}

.btn-danger {
background: #ef4444;
color: white;
}

.btn-danger:hover {
background: #dc2626;
}

.btn-info {
background: #8b5cf6;
color: white;
}

.btn-info:hover {
background: #7c3aed;
}

.btn-success {
background: #10b981;
color: white;
}

.btn-success:hover {
background: #059669;
}

.btn-small {
padding: 0.5rem 1rem;
font-size: 0.75rem;
}

/* Timer Controls */
.timer-controls {
display: flex;
justify-content: center;
gap: 1rem;
margin-bottom: 2rem;
flex-wrap: wrap;
}

/* Timer Input */
.timer-input {
display: flex;
justify-content: center;
gap: 1rem;
margin-bottom: 2rem;
align-items: center;
}

.timer-input input {
padding: 0.75rem;
background: var(–bg-card);
border: 1px solid var(–border-color);
border-radius: 8px;
color: var(–text-primary);
font-family: ‘Courier New’, monospace;
text-align: center;
width: 120px;
font-size: 1rem;
}

.timer-input input:focus {
outline: none;
border-color: #3b82f6;
box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

/* Preset Buttons */
.preset-buttons, .adjust-buttons, .combo-buttons {
display: flex;
justify-content: center;
gap: 0.5rem;
margin-bottom: 1rem;
flex-wrap: wrap;
}

.preset-btn, .adjust-btn, .combo-btn {
padding: 0.5rem 1rem;
background: var(–bg-card);
border: 1px solid var(–border-color);
border-radius: 6px;
color: var(–text-primary);
cursor: pointer;
transition: all 0.2s;
font-size: 0.875rem;
}

.preset-btn:hover, .adjust-btn:hover, .combo-btn:hover {
background: var(–bg-secondary);
transform: translateY(-1px);
}

/* Timer Options */
.timer-options {
display: flex;
justify-content: center;
gap: 1rem;
margin-bottom: 2rem;
flex-wrap: wrap;
}

/* Log Card */
.log-card {
background: var(–bg-card);
border: 1px solid var(–border-color);
border-radius: 12px;
padding: 1.5rem;
margin-top: 2rem;
}

.log-header {
display: flex;
justify-content: space-between;
align-items: center;
margin-bottom: 1rem;
padding-bottom: 0.5rem;
border-bottom: 1px solid var(–border-color);
}

.log-header h3 {
color: var(–text-primary);
font-size: 1.1rem;
}

.log-controls {
display: flex;
gap: 0.5rem;
}

.log-list {
list-style: none;
max-height: 300px;
overflow-y: auto;
}

.log-list li {
padding: 0.5rem 0;
color: var(–text-secondary);
font-size: 0.875rem;
border-bottom: 1px solid var(–border-color);
}

.log-list li:last-child {
border-bottom: none;
}

/* Fullscreen Overlay */
.fullscreen-overlay {
position: fixed;
top: 0;
left: 0;
width: 100vw;
height: 100vh;
background: #000000;
color: white;
display: flex;
align-items: center;
justify-content: center;
z-index: 1000;
}

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

.fs-exit {
position: absolute;
top: 2rem;
right: 2rem;
background: rgba(255, 255, 255, 0.1);
border: 1px solid rgba(255, 255, 255, 0.3);
color: white;
padding: 1rem;
border-radius: 50%;
cursor: pointer;
font-size: 1.5rem;
width: 4rem;
height: 4rem;
display: flex;
align-items: center;
justify-content: center;
transition: all 0.2s;
}

.fs-exit:hover {
background: rgba(255, 255, 255, 0.2);
}

.fs-content {
text-align: center;
width: 100%;
}

.fs-time {
font-size: 20vw;
font-weight: bold;
font-family: ‘Courier New’, monospace;
color: #e53935;
margin-bottom: 2rem;
cursor: pointer;
user-select: none;
line-height: 1;
}

.fs-progress-wrap {
max-width: 80vw;
margin: 0 auto 2rem;
}

.fs-progress-bg {
width: 100%;
height: 2vh;
background: #374151;
border-radius: 1vh;
overflow: hidden;
position: relative;
}

.fs-progress-bar {
height: 100%;
background: linear-gradient(to right, #10b981, #f59e0b, #ef4444);
transform-origin: left;
transition: transform 1s linear;
}

.fs-progress-elapsed {
position: absolute;
top: 0;
right: 0;
height: 100%;
background: rgba(239, 68, 68, 0.8);
transition: width 1s linear;
}

.fs-status {
font-size: 4vw;
color: #f59e0b;
font-weight: bold;
margin-top: 2rem;
}

/* Modal Styles */
.modal {
position: fixed;
top: 0;
left: 0;
width: 100vw;
height: 100vh;
background: rgba(0, 0, 0, 0.5);
display: flex;
align-items: center;
justify-content: center;
z-index: 999;
}

.modal.hidden {
display: none;
}

.modal-content {
background: var(–bg-card);
border-radius: 12px;
padding: 2rem;
max-width: 500px;
width: 90%;
max-height: 80vh;
overflow-y: auto;
border: 1px solid var(–border-color);
}

.modal-content h3 {
color: var(–text-primary);
margin-bottom: 1.5rem;
font-size: 1.25rem;
}

.setting-group {
margin-bottom: 1.5rem;
}

.setting-group label {
display: block;
color: var(–text-primary);
margin-bottom: 0.5rem;
cursor: pointer;
display: flex;
align-items: center;
}

.setting-group input[type=“checkbox”] {
margin-right: 0.5rem;
}

.setting-group input[type=“color”] {
margin-left: 0.5rem;
width: 3rem;
height: 2rem;
border: none;
border-radius: 4px;
cursor: pointer;
}

.modal-buttons {
display: flex;
justify-content: flex-end;
gap: 1rem;
margin-top: 2rem;
flex-wrap: wrap;
}

/* Hidden Utility */
.hidden {
display: none !important;
}

/* Pro Timer Styles */
.pro-timer-container {
background: var(–bg-primary);
color: var(–text-primary);
min-height: 100vh;
padding: 1rem;
}

.pro-admin {
padding: 2rem;
max-width: 1200px;
margin: 0 auto;
}

.pro-admin h2 {
color: var(–text-primary);
}

.pro-admin p {
color: var(–text-secondary);
}

/* Responsive Design */
@media (max-width: 768px) {
.timer-container {
padding: 1rem;
}

.timer-controls {
flex-direction: column;
align-items: center;
}

.timer-controls .btn {
width: 100%;
max-width: 200px;
justify-content: center;
}

.timer-input {
flex-direction: column;
align-items: center;
}

.timer-input input {
width: 150px;
margin-bottom: 1rem;
}

.preset-buttons, .adjust-buttons, .combo-buttons {
gap: 0.25rem;
}

.preset-btn, .adjust-btn, .combo-btn {
padding: 0.5rem 0.75rem;
font-size: 0.75rem;
}

.timer-options {
flex-direction: column;
align-items: center;
}

.timer-options .btn {
width: 100%;
max-width: 200px;
justify-content: center;
}

.modal-buttons {
flex-direction: column;
}

.modal-buttons .btn {
width: 100%;
}
}

@media (max-width: 480px) {
.time-digits {
font-size: 2.5rem;
}

.tab {
padding: 0.75rem 1rem;
font-size: 0.75rem;
}

.fs-time {
font-size: 25vw;
}

.header .container {
padding: 0 0.5rem;
}

.logo {
font-size: 1.25rem;
}

.theme-toggle {
padding: 0.5rem 0.75rem;
font-size: 0.875rem;
}
}

/* Print Styles */
@media print {
.header, .tab-navigation, .timer-controls, .timer-options, .btn {
display: none;
}

.time-digits {
color: #000 !important;
text-shadow: none;
}
}

/* High Contrast Mode */
@media (prefers-contrast: high) {
.time-digits {
text-shadow: none;
font-weight: 900;
}

.btn {
border: 2px solid currentColor;
}
}

/* Reduced Motion */
@media (prefers-reduced-motion: reduce) {
.progress-bar,
.progress-elapsed {
transition: none;
}

.btn:hover {
transform: none;
}

- {
  transition: none !important;
  animation: none !important;
  }
  }

/* Focus Styles for Accessibility */
.btn:focus,
.tab:focus,
input:focus,
.preset-btn:focus,
.adjust-btn:focus,
.combo-btn:focus {
outline: 2px solid #3b82f6;
outline-offset: 2px;
}

/* Dark Mode Specific Overrides */
.dark .progress-background {
background: #374151;
}

.dark .fs-progress-bg {
background: #374151;
}

/* Light Mode Specific Overrides */
body:not(.dark) .time-digits {
color: #dc2626;
text-shadow: 0 0 20px rgba(220, 38, 38, 0.3);
}

body:not(.dark) .fs-time {
color: #dc2626;
}

/* Custom Scrollbars */
.log-list::-webkit-scrollbar {
width: 6px;
}

.log-list::-webkit-scrollbar-track {
background: var(–bg-secondary);
border-radius: 3px;
}

.log-list::-webkit-scrollbar-thumb {
background: var(–border-color);
border-radius: 3px;
}

.log-list::-webkit-scrollbar-thumb:hover {
background: var(–text-muted);
}

/* Animation for smooth transitions */
@keyframes fadeIn {
from { opacity: 0; }
to { opacity: 1; }
}

.screen.active {
animation: fadeIn 0.3s ease-in;
}

/* Ensure proper spacing and alignment */
.timer-display .progress-container {
max-width: 600px;
margin: 2rem auto;
}

/* Make sure buttons are properly sized */
.timer-controls .btn,
.timer-options .btn {
min-width: fit-content;
white-space: nowrap;
}

/* Improve touch targets for mobile */
@media (max-width: 768px) {
.btn, .preset-btn, .adjust-btn, .combo-btn, .tab {
min-height: 44px;
touch-action: manipulation;
}
}