@keyframes gradientShift {
    0% {
        background-position: 0% 50%;
    }

    50% {
        background-position: 100% 50%;
    }

    100% {
        background-position: 0% 50%;
    }
}

@keyframes float {

    0%,
    100% {
        transform: translateY(0px);
    }

    50% {
        transform: translateY(-20px);
    }
}

@keyframes pulse {

    0%,
    100% {
        opacity: 0.6;
    }

    50% {
        opacity: 1;
    }
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'SF Pro Display', 'Segoe UI', Roboto, sans-serif;
    background: linear-gradient(-45deg,
            #c9a0dc,
            #a8b5d1,
            #f7cac9,
            #92a8d1,
            #b4a7d6,
            #d4a5a5,
            #9fa8da,
            #f8b195);
    background-size: 400% 400%;
    animation: gradientShift 45s ease infinite;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    margin: 0;
    overflow-x: hidden;
    overflow-y: auto;
    position: relative;
    padding: 40px 20px;
}

.background-media {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
    opacity: 0;
    transition: opacity 0.5s ease;
}

.background-media.active {
    opacity: 1;
}

.background-media img,
.background-media video {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* Floating orbs for depth */
body::before,
body::after {
    content: '';
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    animation: float 12s ease-in-out infinite;
    opacity: 0.4;
}

body::before {
    width: 350px;
    height: 350px;
    background: rgba(255, 255, 255, 0.08);
    top: 10%;
    left: 20%;
    animation-delay: 0s;
}

body::after {
    width: 450px;
    height: 450px;
    background: rgba(255, 255, 255, 0.06);
    bottom: 15%;
    right: 15%;
    animation-delay: 3s;
}

.main-wrapper {
    display: flex;
    gap: 30px;
    align-items: flex-start;
    max-width: 1200px;
    width: 100%;
    position: relative;
    z-index: 1;
}

.upload-section {
    position: fixed;
    bottom: 20px;
    left: 20px;
    z-index: 1000;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.upload-box {
    background: rgba(255, 255, 255, 0.12);
    backdrop-filter: blur(20px) saturate(180%);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
    border-radius: 20px;
    border: 2px dashed rgba(255, 255, 255, 0.3);
    padding: 20px 25px;
    cursor: pointer;
    transition: all 0.3s ease;
    text-align: center;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.08);
}

.upload-box:hover {
    border-color: rgba(255, 255, 255, 0.6);
    background: rgba(255, 255, 255, 0.18);
    transform: translateY(-2px);
}

.upload-box.drag-over {
    border-color: #34c759;
    background: rgba(52, 199, 89, 0.1);
    transform: scale(1.02);
}

.upload-icon {
    font-size: 2em;
    margin-bottom: 5px;
}

.upload-text {
    color: rgba(255, 255, 255, 0.9);
    font-weight: 500;
    font-size: 0.9em;
    margin: 5px 0;
}

.upload-subtext {
    color: rgba(255, 255, 255, 0.6);
    font-size: 0.75em;
    margin: 0;
}

.clear-bg-btn {
    padding: 12px 24px;
    font-size: 0.9em;
    border: none;
    cursor: pointer;
    transition: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    font-weight: 500;
    letter-spacing: 0.3px;
    position: relative;
    overflow: hidden;
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border-radius: 12px;
    box-shadow: 0 4px 15px rgba(255, 59, 48, 0.2);
}

.clear-bg-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(255, 59, 48, 0.8);
    border-radius: 12px;
    transition: all 0.3s ease;
    z-index: -1;
}

.clear-bg-btn::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(to top,
            rgba(255, 59, 48, 0.6),
            rgba(255, 59, 48, 0.3),
            rgba(255, 59, 48, 0.1));
    border-radius: 12px;
    opacity: 0;
    transition: all 0.3s ease;
    z-index: -1;
}

.clear-bg-btn:hover {
    padding: 12px 20px;
    box-shadow: 0 8px 30px rgba(255, 59, 48, 0.4);
}

.clear-bg-btn:hover::after {
    opacity: 1;
}

.container {
    text-align: center;
    background: rgba(255, 255, 255, 0.12);
    backdrop-filter: blur(20px) saturate(180%);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
    padding: 40px 50px;
    border-radius: 30px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.08),
        0 0 0 1px rgba(255, 255, 255, 0.18) inset;
    border: 1px solid rgba(255, 255, 255, 0.15);
    animation: float 8s ease-in-out infinite;
    position: relative;
    z-index: 1;
    flex: 1;
}

h1 {
    color: #ffffff;
    font-weight: 600;
    font-size: 2em;
    margin-bottom: 25px;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    letter-spacing: -0.5px;
}

.settings {
    margin-bottom: 25px;
    display: flex;
    justify-content: center;
    gap: 20px;
    flex-wrap: wrap;
}

.input-group {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
}

.input-group label {
    font-size: 0.85em;
    color: rgba(255, 255, 255, 0.9);
    font-weight: 500;
    letter-spacing: 0.3px;
    text-transform: uppercase;
}

.input-group input {
    width: 90px;
    padding: 10px 12px;
    font-size: 1.1em;
    text-align: center;
    border: 1.5px solid rgba(255, 255, 255, 0.3);
    border-radius: 12px;
    background: rgba(255, 255, 255, 0.2);
    color: #ffffff;
    font-weight: 500;
    transition: all 0.3s ease;
    backdrop-filter: blur(10px);
}

.input-group input:focus {
    outline: none;
    border-color: rgba(255, 255, 255, 0.6);
    background: rgba(255, 255, 255, 0.25);
    box-shadow: 0 0 0 4px rgba(255, 255, 255, 0.1);
}

.input-group input::placeholder {
    color: rgba(255, 255, 255, 0.6);
}

#timer {
    font-size: 4em;
    font-weight: 300;
    color: #ffffff;
    margin: 20px 0;
    text-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
    letter-spacing: 0.05em;
    font-variant-numeric: tabular-nums;
}

#session {
    font-size: 1.2em;
    color: rgba(255, 255, 255, 0.85);
    margin-bottom: 25px;
    font-weight: 500;
    letter-spacing: 0.3px;
}

.buttons {
    display: flex;
    justify-content: center;
    gap: 0;
    flex-wrap: nowrap;
}

button {
    padding: 16px 32px 16px 32px;
    font-size: 1em;
    border: none;
    cursor: pointer;
    transition: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    font-weight: 500;
    letter-spacing: 0.3px;
    position: relative;
    overflow: hidden;
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0px;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    width: 140px;
}

button:hover {
    padding: 16px 24px 16px 32px;
}

/* Underline effect */
button::before {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 2px;
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Color shadow from bottom */
button::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 0%;
    opacity: 0;
    transition: height 0.6s cubic-bezier(0.4, 0, 0.2, 1),
        opacity 0.6s cubic-bezier(0.4, 0, 0.2, 1);
    z-index: -1;
}

button:hover::before {
    transform: scaleX(1);
}

button:hover::after {
    height: 100%;
    opacity: 1;
}

button:active {
    transform: scale(0.98);
}

/* Icon styling */
.icon {
    font-size: 1.2em;
    opacity: 0;
    max-width: 0;
    overflow: hidden;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    margin-left: 0;
    white-space: nowrap;
}

button:hover .icon {
    opacity: 1;
    max-width: 30px;
    margin-left: 8px;
}

#startButton {
    border-top-left-radius: 14px;
    border-bottom-left-radius: 14px;
    border-right: 1px solid rgba(255, 255, 255, 0.15);
}

#startButton::before {
    background: #34c759;
    box-shadow: 0 0 20px rgba(52, 199, 89, 0.6);
}

#startButton::after {
    background: linear-gradient(to top,
            rgba(52, 199, 89, 0.6),
            rgba(52, 199, 89, 0.3),
            rgba(52, 199, 89, 0.1));
    box-shadow: 0 -10px 40px rgba(52, 199, 89, 0.7);
}

#startButton:hover {
    box-shadow: 0 8px 30px rgba(52, 199, 89, 0.3);
}

#pauseButton {
    border-right: 1px solid rgba(255, 255, 255, 0.15);
}

#pauseButton::before {
    background: #ff9500;
    box-shadow: 0 0 20px rgba(255, 149, 0, 0.6);
}

#pauseButton::after {
    background: linear-gradient(to top,
            rgba(255, 149, 0, 0.6),
            rgba(255, 149, 0, 0.3),
            rgba(255, 149, 0, 0.1));
    box-shadow: 0 -10px 40px rgba(255, 149, 0, 0.7);
}

#pauseButton:hover {
    box-shadow: 0 8px 30px rgba(255, 149, 0, 0.3);
}

#resetButton {
    border-top-right-radius: 14px;
    border-bottom-right-radius: 14px;
}

#resetButton::before {
    background: #ff3b30;
    box-shadow: 0 0 20px rgba(255, 59, 48, 0.6);
}

#resetButton::after {
    background: linear-gradient(to top,
            rgba(255, 59, 48, 0.6),
            rgba(255, 59, 48, 0.3),
            rgba(255, 59, 48, 0.1));
    box-shadow: 0 -10px 40px rgba(255, 59, 48, 0.7);
}

#resetButton:hover {
    box-shadow: 0 8px 30px rgba(255, 59, 48, 0.3);
}

.status-panel {
    padding: 25px;
    background: rgba(255, 255, 255, 0.12);
    backdrop-filter: blur(20px) saturate(180%);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
    border-radius: 30px;
    border: 1px solid rgba(255, 255, 255, 0.15);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.08),
        0 0 0 1px rgba(255, 255, 255, 0.18) inset;
    text-align: left;
    width: 280px;
    animation: float 8s ease-in-out infinite;
    animation-delay: 1s;
}

.status-panel h3 {
    color: rgba(255, 255, 255, 0.95);
    font-size: 1.2em;
    margin-bottom: 15px;
    font-weight: 600;
    letter-spacing: 0.3px;
}

.status-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 15px;
    margin-bottom: 10px;
    background: rgba(255, 255, 255, 0.08);
    border-radius: 12px;
    transition: all 0.3s ease;
}

.status-item:hover {
    background: rgba(255, 255, 255, 0.15);
    transform: translateX(5px);
}

.status-label {
    color: rgba(255, 255, 255, 0.8);
    font-size: 0.95em;
    font-weight: 500;
}

.status-value {
    color: #ffffff;
    font-weight: 600;
    font-size: 1em;
    padding: 5px 12px;
    background: rgba(255, 255, 255, 0.15);
    border-radius: 8px;
}

.calendar-panel {
    padding: 25px;
    background: rgba(255, 255, 255, 0.12);
    backdrop-filter: blur(20px) saturate(180%);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
    border-radius: 30px;
    border: 1px solid rgba(255, 255, 255, 0.15);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.08),
        0 0 0 1px rgba(255, 255, 255, 0.18) inset;
    width: 280px;
    animation: float 8s ease-in-out infinite;
    animation-delay: 2s;
}

.calendar-panel h3 {
    color: rgba(255, 255, 255, 0.95);
    font-size: 1.2em;
    margin-bottom: 15px;
    font-weight: 600;
    letter-spacing: 0.3px;
    text-align: center;
}

.calendar-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 15px;
}

.month-year {
    color: rgba(255, 255, 255, 0.9);
    font-weight: 500;
    font-size: 0.95em;
}

.calendar-nav {
    display: flex;
    gap: 10px;
}

.calendar-nav button {
    background: rgba(255, 255, 255, 0.15);
    border: none;
    color: white;
    width: 30px;
    height: 30px;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s ease;
    padding: 0;
    min-width: unset;
}

.calendar-nav button:hover {
    background: rgba(255, 255, 255, 0.25);
    padding: 0;
}

.calendar-grid {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    gap: 8px;
    margin-top: 10px;
}

.calendar-day-header {
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.75em;
    font-weight: 600;
    text-align: center;
    padding: 5px 0;
}

.calendar-day {
    aspect-ratio: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.08);
    border-radius: 8px;
    color: rgba(255, 255, 255, 0.8);
    font-size: 0.85em;
    font-weight: 500;
    transition: all 0.3s ease;
}

.calendar-day:hover {
    background: rgba(255, 255, 255, 0.15);
    transform: scale(1.1);
}

.calendar-day.today {
    background: rgba(52, 199, 89, 0.4);
    color: white;
    font-weight: 600;
    box-shadow: 0 0 15px rgba(52, 199, 89, 0.3);
}

.calendar-day.other-month {
    opacity: 0.3;
}

.notification-box {
    position: fixed;
    top: 20px;
    right: 20px;
    padding: 15px 25px;
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(20px);
    border-radius: 12px;
    border: 1px solid rgba(255, 255, 255, 0.3);
    color: white;
    font-weight: 500;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.2);
    transform: translateX(400px);
    transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    z-index: 1000;
    max-width: 300px;
}

.notification-box.show {
    transform: translateX(0);
}

.notification-icon {
    font-size: 1.3em;
    margin-right: 10px;
}

/* Responsive design */
@media (max-width: 1024px) {
    .main-wrapper {
        flex-direction: column;
        align-items: center;
    }

    .status-panel,
    .calendar-panel {
        width: 100%;
        max-width: 500px;
    }

    .upload-section {
        position: relative;
        top: unset;
        left: unset;
        margin-bottom: 20px;
        width: 100%;
        max-width: 500px;
    }
}

@media (max-width: 600px) {
    body {
        padding: 20px 10px;
    }

    .container {
        padding: 30px 20px;
        margin: 0;
    }

    h1 {
        font-size: 1.8em;
    }

    #timer {
        font-size: 3em;
    }

    .settings {
        gap: 15px;
    }

    button {
        padding: 12px 24px;
        font-size: 0.95em;
    }

    .buttons {
        flex-direction: column;
        width: 100%;
    }

    #startButton {
        border-radius: 14px 14px 0 0;
        border-right: none;
        border-bottom: 1px solid rgba(255, 255, 255, 0.15);
    }

    #pauseButton {
        border-radius: 0;
        border-right: none;
        border-bottom: 1px solid rgba(255, 255, 255, 0.15);
    }

    #resetButton {
        border-radius: 0 0 14px 14px;
    }

    .status-panel {
        padding: 20px;
    }

    .notification-box {
        right: 10px;
        left: 10px;
        max-width: none;
    }
}

/* Background active state - make glass UI completely transparent */
body.background-active .container,
body.background-active .status-panel,
body.background-active .calendar-panel,
body.background-active .upload-box {
    background: rgba(255, 255, 255, 0);
    backdrop-filter: blur(3px);
    -webkit-backdrop-filter: blur(3px);
    border: 1px solid rgba(255, 255, 255, 0.05);
}

/* Dynamic text colors based on background brightness */
body.dark-text h1,
body.dark-text #timer,
body.dark-text #session,
body.dark-text .timer,
body.dark-text .session,
body.dark-text .status-label,
body.dark-text .status-value,
body.dark-text .settings label,
body.dark-text .settings input,
body.dark-text .settings button,
body.dark-text .calendar-panel h3,
body.dark-text .calendar-day,
body.dark-text .upload-text,
body.dark-text .upload-subtext,
body.dark-text #notificationText,
body.dark-text #monthYear {
    color: #000000 !important;
}

body.dark-text .input-group input::placeholder {
    color: rgba(0, 0, 0, 0.6) !important;
}

body.dark-text .notification-icon {
    color: #333333 !important;
}

body.dark-text .clear-bg-btn {
    color: #000000 !important;
}

body.dark-text .clear-bg-btn::before {
    background: rgba(255, 59, 48, 0.9);
}

body.dark-text .clear-bg-btn::after {
    background: linear-gradient(to top,
            rgba(255, 59, 48, 0.7),
            rgba(255, 59, 48, 0.4),
            rgba(255, 59, 48, 0.2));
}

body.dark-text .clear-bg-btn:hover {
    box-shadow: 0 8px 30px rgba(255, 59, 48, 0.5);
}