:root {
    --bg-color: #0f172a;
    --card-bg: rgba(30, 41, 59, 0.4);
    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --accent-color: #38bdf8;
    /* Cyan-400 */
    --accent-glow: rgba(56, 189, 248, 0.5);
    --danger-color: #f43f5e;
    --font-main: 'Outfit', sans-serif;

    --mode-focus: #38bdf8;
    --mode-short: #a78bfa;
    --mode-long: #34d399;
}

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

body {
    font-family: var(--font-main);
    background-color: var(--bg-color);
    color: var(--text-primary);
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    overflow-y: auto;
    overflow-x: hidden;
    position: relative;
    padding: 2rem 0;
}

/* Moving Background Orbs */
.orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    z-index: -1;
    animation: float 20s infinite ease-in-out;
}

.orb-1 {
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(56, 189, 248, 0.2) 0%, rgba(56, 189, 248, 0) 70%);
    top: -10%;
    left: -10%;
}

.orb-2 {
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(167, 139, 250, 0.2) 0%, rgba(167, 139, 250, 0) 70%);
    bottom: -10%;
    right: -10%;
    animation-delay: -10s;
}

@keyframes float {

    0%,
    100% {
        transform: translate(0, 0);
    }

    50% {
        transform: translate(30px, 50px);
    }
}

.glass-card {
    background: var(--card-bg);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: 24px;
    padding: 3rem;
    width: 90%;
    max-width: 450px;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 2rem;
    transition: transform 0.3s ease;
}

header {
    width: 100%;
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1.5rem;
}

h1 {
    font-size: 1.5rem;
    font-weight: 600;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--text-secondary);
}

.mode-switcher {
    display: flex;
    background: rgba(0, 0, 0, 0.2);
    padding: 0.25rem;
    border-radius: 100px;
    gap: 0.25rem;
}

.mode-btn {
    background: transparent;
    border: none;
    color: var(--text-secondary);
    padding: 0.5rem 1rem;
    border-radius: 100px;
    cursor: pointer;
    font-family: inherit;
    font-size: 0.9rem;
    transition: all 0.3s ease;
}

.mode-btn:hover {
    color: var(--text-primary);
}

.mode-btn.active {
    background: rgba(255, 255, 255, 0.1);
    color: var(--text-primary);
    font-weight: 600;
}

/* Timer Display */
.timer-display {
    position: relative;
    width: 300px;
    height: 300px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}

.progress-ring {
    position: absolute;
    top: 0;
    left: 0;
    transform: rotate(-90deg);
}

.progress-ring__circle {
    transition: stroke-dashoffset 0.5s linear, stroke 0.3s ease;
    transform-origin: 50% 50%;
    stroke-linecap: round;
}

.time-text {
    font-size: 5rem;
    font-weight: 300;
    color: var(--text-primary);
    z-index: 2;
    font-variant-numeric: tabular-nums;
}

.status-text {
    font-size: 1rem;
    color: var(--text-secondary);
    margin-top: 0.5rem;
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* Controls */
.controls {
    display: flex;
    gap: 1rem;
    align-items: center;
}

.control-btn {
    cursor: pointer;
    border: none;
    transition: all 0.2s ease;
    font-family: inherit;
}

.control-btn:active {
    transform: scale(0.95);
}

.primary {
    background: var(--text-primary);
    color: var(--bg-color);
    font-size: 1.25rem;
    font-weight: 600;
    padding: 0.75rem 2.5rem;
    border-radius: 100px;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    box-shadow: 0 0 15px rgba(255, 255, 255, 0.1);
}

.primary:hover {
    box-shadow: 0 0 25px rgba(255, 255, 255, 0.2);
    transform: translateY(-2px);
}

.secondary {
    background: rgba(255, 255, 255, 0.1);
    color: var(--text-primary);
    padding: 0.75rem;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.secondary:hover {
    background: rgba(255, 255, 255, 0.2);
}

/* Task Managment */
.task-section {
    width: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
}

.add-task-btn {
    background: transparent;
    border: 2px dashed rgba(255, 255, 255, 0.2);
    color: var(--text-secondary);
    padding: 1rem;
    width: 100%;
    border-radius: 16px;
    cursor: pointer;
    font-family: inherit;
    font-size: 1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    transition: all 0.3s ease;
}

.add-task-btn:hover {
    border-color: var(--accent-color);
    color: var(--text-primary);
    background: rgba(255, 255, 255, 0.05);
}

.task-card {
    background: rgba(0, 0, 0, 0.3);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 16px;
    padding: 1.5rem;
    width: 100%;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.task-card.hidden {
    display: none;
}

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

.task-label {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--text-secondary);
}

.task-progress {
    font-size: 0.9rem;
    color: var(--accent-color);
    font-weight: 600;
}

#task-name-display {
    font-size: 1.2rem;
    font-weight: 500;
}

.task-notes {
    font-size: 0.95rem;
    color: var(--text-secondary);
    background: rgba(0, 0, 0, 0.2);
    padding: 1rem;
    border-radius: 8px;
    margin-top: 0.5rem;
    line-height: 1.5;
}

.task-notes.hidden {
    display: none;
}

.toggle-notes-btn,
.finish-task-btn {
    background: transparent;
    border: none;
    color: var(--text-secondary);
    font-size: 0.8rem;
    cursor: pointer;
    align-self: flex-start;
    padding: 0;
    text-decoration: underline;
    opacity: 0.8;
}

.toggle-notes-btn:hover,
.finish-task-btn:hover {
    opacity: 1;
    color: var(--text-primary);
}

.finish-task-btn {
    margin-top: 0.5rem;
    color: var(--accent-color);
    text-decoration: none;
    border: 1px solid var(--accent-color);
    padding: 0.25rem 0.5rem;
    border-radius: 4px;
}

/* Modal */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 100;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease;
}

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

.modal.hidden {
    display: none;
}

.modal .glass-card {
    width: 90%;
    max-width: 400px;
    padding: 2rem;
    box-shadow: 0 0 50px rgba(0, 0, 0, 0.8);
    align-items: stretch;
}

.modal h2 {
    text-align: center;
    margin-bottom: 1.5rem;
    font-size: 1.5rem;
}

.form-group {
    margin-bottom: 1.25rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.form-group input,
.form-group textarea {
    width: 100%;
    background: rgba(0, 0, 0, 0.3);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 8px;
    padding: 0.75rem;
    color: var(--text-primary);
    font-family: inherit;
    font-size: 1rem;
    resize: vertical;
}

.form-group textarea {
    min-height: 80px;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--accent-color);
}

.form-actions {
    display: flex;
    gap: 1rem;
    margin-top: 1rem;
}

.form-actions button {
    flex: 1;
    padding: 0.75rem;
    border-radius: 8px;
    border: none;
    cursor: pointer;
    font-family: inherit;
    font-weight: 600;
    transition: all 0.2s ease;
}

.cancel-btn {
    background: rgba(255, 255, 255, 0.1);
    color: var(--text-primary);
}

.save-btn {
    background: var(--text-primary);
    color: var(--bg-color);
}

.cancel-btn:hover {
    background: rgba(255, 255, 255, 0.2);
}

.save-btn:hover {
    opacity: 0.9;
}


@media (max-width: 480px) {
    .glass-card {
        width: 95%;
        padding: 2rem;
    }

    .orb {
        opacity: 0.5;
    }

    .time-text {
        font-size: 4rem;
    }
}