:root {
    --bg-color: #050505;
    --text-color: #00ff41;
    /* Matrix/Classic Digital Green */
    --accent-glow: rgba(0, 255, 65, 0.3);
}

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

body {
    background-color: var(--bg-color);
    color: var(--text-color);
    font-family: 'Orbitron', sans-serif;
    height: 100vh;
    width: 100vw;
    display: flex;
    justify-content: center;
    align-items: center;
    overflow: hidden;
    cursor: pointer;
    user-select: none;
}

/* Progress Pizza Animation */
.progress-pizza {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 150vmin;
    height: 150vmin;
    z-index: -1;
    pointer-events: none;
    border-radius: 50%;
    /* Start with a full circle (0deg gap) */
    background: conic-gradient(transparent var(--pizza-gap, 0deg), var(--text-color) var(--pizza-gap, 0deg));
    opacity: 0.1;
    /* Lighter color */
    transition: opacity 0.5s ease;
}

.progress-pizza.hidden {
    display: none;
}

.app-container {
    width: 100%;
    height: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
}

.countdown-display {
    /* Font size handled by JavaScript for dynamic scaling */
    line-height: 1;
    text-align: center;
    white-space: nowrap;
    font-variant-numeric: tabular-nums;
    text-shadow: 0 0 20px var(--accent-glow), 0 0 40px var(--accent-glow);
    transition: transform 0.1s ease-out;
}

body:active .countdown-display {
    transform: scale(0.98);
}

/* Burger Icon */
.burger-icon {
    position: fixed;
    top: 20px;
    left: 20px;
    z-index: 1000;
    width: 30px;
    height: 25px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    cursor: pointer;
    transition: transform 0.3s ease;
}

.burger-icon span {
    display: block;
    height: 3px;
    width: 100%;
    background-color: var(--text-color);
    border-radius: 3px;
    box-shadow: 0 0 10px var(--accent-glow);
    transition: all 0.3s ease;
}

.burger-icon.open span:nth-child(1) {
    transform: translateY(11px) rotate(45deg);
}

.burger-icon.open span:nth-child(2) {
    opacity: 0;
}

.burger-icon.open span:nth-child(3) {
    transform: translateY(-11px) rotate(-45deg);
}

/* Settings Menu */
.settings-menu {
    position: fixed;
    top: 60px;
    left: 20px;
    z-index: 999;
    padding: 20px;
    background: rgba(5, 5, 5, 0.95);
    backdrop-filter: blur(15px);
    -webkit-backdrop-filter: blur(15px);
    border: 1px solid rgba(0, 255, 65, 0.3);
    border-radius: 15px;
    box-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.37);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    transform-origin: top left;
    max-height: calc(100vh - 100px);
    overflow-y: auto;
    padding-right: 15px;
    /* Space for scrollbar */
}

.help-trigger {
    position: absolute;
    top: 10px;
    right: 15px;
    width: 24px;
    height: 24px;
    background: transparent;
    border: 1px solid var(--text-color);
    border-radius: 50%;
    color: var(--text-color);
    font-family: 'Orbitron', sans-serif;
    font-size: 14px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
    opacity: 0.7;
    z-index: 10;
}

.help-trigger:hover {
    opacity: 1;
    background: rgba(0, 255, 65, 0.1);
    box-shadow: 0 0 10px var(--accent-glow);
}

/* Modal Overlay */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: rgba(0, 0, 0, 0.85);
    backdrop-filter: blur(10px);
    z-index: 2000;
    display: flex;
    justify-content: center;
    align-items: center;
    transition: opacity 0.3s ease;
}

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

.modal-content {
    background: rgba(5, 5, 5, 0.95);
    border: 1px solid var(--text-color);
    border-radius: 20px;
    padding: 40px;
    max-width: 500px;
    width: 90%;
    position: relative;
    box-shadow: 0 0 40px rgba(0, 255, 65, 0.2);
    max-height: 80vh;
    overflow-y: auto;
}

.close-modal {
    position: absolute;
    top: 15px;
    right: 20px;
    background: transparent;
    border: none;
    color: var(--text-color);
    font-size: 2rem;
    cursor: pointer;
    opacity: 0.6;
    transition: opacity 0.3s ease;
}

.close-modal:hover {
    opacity: 1;
}

.modal-content h2 {
    margin-bottom: 30px;
    text-align: center;
    letter-spacing: 3px;
    color: var(--text-color);
    text-shadow: 0 0 10px var(--accent-glow);
}

.help-section {
    margin-bottom: 25px;
}

.help-section h3 {
    font-size: 1rem;
    margin-bottom: 8px;
    color: var(--text-color);
}

.help-section p {
    font-size: 0.9rem;
    line-height: 1.6;
    opacity: 0.9;
    color: #fff;
}

.modal-content::-webkit-scrollbar {
    width: 5px;
}

.modal-content::-webkit-scrollbar-thumb {
    background: var(--text-color);
    border-radius: 10px;
}

/* Custom Scrollbar */
.settings-menu::-webkit-scrollbar {
    width: 6px;
}

.settings-menu::-webkit-scrollbar-track {
    background: rgba(255, 255, 255, 0.05);
    border-radius: 10px;
}

.settings-menu::-webkit-scrollbar-thumb {
    background: var(--text-color);
    border-radius: 10px;
    box-shadow: 0 0 5px var(--accent-glow);
}

.settings-menu.hidden {
    opacity: 0;
    transform: scale(0.9) translateY(-10px);
    pointer-events: none;
}

/* Input Styles */
.input-group {
    display: flex;
    gap: 20px;
    align-items: flex-start;
}

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

.input-field input {
    width: 80px;
    background: rgba(0, 0, 0, 0.3);
    border: 1px solid var(--text-color);
    border-radius: 8px;
    color: var(--text-color);
    font-family: 'Orbitron', sans-serif;
    font-size: 1.5rem;
    padding: 8px;
    text-align: center;
    outline: none;
}

.input-field label {
    font-size: 0.7rem;
    margin-top: 5px;
    color: var(--text-color);
    opacity: 0.8;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.restart-button {
    margin-bottom: 25px;
    width: 100%;
    padding: 12px;
    background: transparent;
    border: 1px solid var(--text-color);
    border-radius: 8px;
    color: var(--text-color);
    font-family: 'Orbitron', sans-serif;
    font-size: 1rem;
    font-weight: bold;
    text-transform: uppercase;
    letter-spacing: 2px;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 0 10px rgba(0, 255, 65, 0.1);
}

.restart-button:hover {
    background: var(--text-color);
    color: var(--bg-color);
    box-shadow: 0 0 20px var(--accent-glow);
}

.restart-button:active {
    transform: scale(0.95);
}

/* Toggle Switch */
.toggle-container {
    margin-top: 25px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 15px;
}

.toggle-label {
    font-size: 0.8rem;
    color: var(--text-color);
    text-transform: uppercase;
    letter-spacing: 1px;
    opacity: 0.6;
    transition: opacity 0.3s ease;
}

.switch {
    position: relative;
    display: inline-block;
    width: 60px;
    height: 30px;
}

.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-radius: 34px;
    border: 1px solid var(--text-color);
    box-shadow: 0 0 10px rgba(0, 255, 65, 0.1);
}

.slider:before {
    position: absolute;
    content: "";
    height: 22px;
    width: 22px;
    left: 4px;
    bottom: 3px;
    background-color: var(--text-color);
    transition: .4s;
    border-radius: 50%;
    box-shadow: 0 0 15px var(--accent-glow);
}

input:checked+.slider:before {
    transform: translateX(28px);
}

/* Active label states */
#direction-toggle:not(:checked)~.toggle-label:first-child {
    opacity: 1;
    text-shadow: 0 0 10px var(--accent-glow);
}

#direction-toggle:checked~.toggle-label:last-child {
    opacity: 1;
    text-shadow: 0 0 10px var(--accent-glow);
}

.save-button {
    margin-top: 25px;
    width: 100%;
    padding: 12px;
    background: transparent;
    border: 1px solid var(--text-color);
    border-radius: 8px;
    color: var(--text-color);
    font-family: 'Orbitron', sans-serif;
    font-size: 1rem;
    font-weight: bold;
    text-transform: uppercase;
    letter-spacing: 2px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.save-button:not(:disabled):hover {
    background: rgba(0, 255, 65, 0.1);
    box-shadow: 0 0 15px var(--accent-glow);
}

.save-button:disabled {
    opacity: 0.3;
    cursor: not-allowed;
    border-color: rgba(0, 255, 65, 0.3);
}

.saved-times-grid {
    margin-top: 20px;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 10px;
}

.saved-time-item {
    position: relative;
    padding: 8px 4px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(0, 255, 65, 0.3);
    border-radius: 6px;
    color: var(--text-color);
    font-size: 0.8rem;
    text-align: center;
    cursor: pointer;
    transition: all 0.2s ease;
}

.saved-time-item:hover {
    background: rgba(0, 255, 65, 0.1);
    border-color: var(--text-color);
}

.delete-saved-time {
    position: absolute;
    top: -5px;
    right: -5px;
    width: 18px;
    height: 18px;
    background: var(--bg-color);
    border: 1px solid var(--text-color);
    border-radius: 50%;
    color: var(--text-color);
    font-size: 12px;
    line-height: 16px;
    text-align: center;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0.8;
}

.delete-saved-time:hover {
    background: #ff0000;
    color: white;
    border-color: #ff0000;
    opacity: 1;
}

/* Remove Arrows from Number Input */
input::-webkit-outer-spin-button,
input::-webkit-inner-spin-button {
    -webkit-appearance: none;
    appearance: none;
    margin: 0;
}

input[type=number] {
    -moz-appearance: textfield;
    appearance: textfield;
}

.fullscreen-btn {
    position: fixed;
    bottom: 20px;
    right: 20px;
    width: 44px;
    height: 44px;
    background: rgba(5, 5, 5, 0.6);
    backdrop-filter: blur(10px);
    border: 1px solid var(--text-color);
    border-radius: 50%;
    color: var(--text-color);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
    z-index: 1000;
    opacity: 0.6;
}

.fullscreen-btn:hover {
    opacity: 1;
    background: rgba(0, 255, 65, 0.1);
    box-shadow: 0 0 20px var(--accent-glow);
    transform: scale(1.1);
}

.fullscreen-btn svg {
    transition: transform 0.3s ease;
}

.fullscreen-btn:active svg {
    transform: scale(0.9);
}