html, body {
    height: 100%;
    width: 100%;
    margin: 0;
    padding: 0;
    display: flex;
    overflow-x: hidden;
}

body {
    font-family: 'Arial', Tahoma, Geneva, Verdana, sans-serif;
    background: #f0f4f8;
    margin: 0;
    padding: 0;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    overflow-x: hidden;
}

#headline {
    background-color: #026f25;
    color: #fff;
    width: 100%;
    padding: 20px 0;
    text-align: center;
    box-shadow: 0 2px 6px rgba(0,0,0,0.2);
    background-image: linear-gradient(#026f25, #014316);
    display: grid;
    grid-template-columns: 1fr auto 1fr; 
    align-items: center;

}

#headline h1 {
    grid-column: 2;
    justify-self: center; 
    margin: 0;
    font-size: 1.8rem;
}

#headline a {
    grid-column: 1;
    justify-self: start;   
    font-size: 30px;
}

.layout {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: 25px;
    width: 100%;
    margin-left: 30px;
    margin-top: 30px;
    margin-right: 20px;
}

#left {
    display: flex;
    flex-direction: column;
    text-align: left;
    margin: 20px;
}

#left label {
    font-weight: bold;
    margin: 12px 0 6px;
}

#left input {
    padding: 12px;
    font-size: 1.05rem;
    border-radius: 6px;
    border: 1px solid #ccc;
    margin-bottom: 8px;
}

#left input.inputError {
    border: 2px solid #c0392b;
    background-color: #fdecea;
}

#left #confirmButton {
    padding: 12px 25px;
    margin-top: 12px;
    font-size: 1rem;
    background-color: #026f25;
    color: #fff;
    border: none;
    border-radius: 6px;
    cursor: pointer;
}

#left #confirmButton:hover {
    background-color: #049d34;
}

#left #recalcButton {
    padding: 12px 25px;
    margin-top: 4px;
    margin-bottom: 12px;
    font-size: 1rem;
    background-color: #1a5276;
    color: #fff;
    border: none;
    border-radius: 6px;
    cursor: pointer;
}

#left #recalcButton:hover {
    background-color: #21618c;
}

#output {
    background: #fff;
    padding: 15px;
    border-radius: 10px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.15);
    min-height: 250px;
    width: 85%;
    margin-top: 20px;
    margin-left: 20px;
}

#output p.setDone {
    color: #9aa0a6;
    opacity: 0.7;
}

#output p.setDone b {
    color: #9aa0a6;
}

#right {
    text-align: center;
    margin: 20px;
    width: 85%;
}

#timerHeadline {
    margin-bottom: 10px;
}

#timerEnviroment {
    background-color: #fff;
    font-size: 2rem;
    font-weight: bold;
    padding: 20px;
    border-radius: 12px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.15);
    margin-bottom: 35px;
}

#timer {
    font-size: 4rem;
    font-weight: bold;
    background: #fff;
    padding: 20px;
    border-radius: 12px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.15);
    margin-bottom: 20px;
}

.time-inputs label {
    margin: 5px;
}
.time-inputs input {
    width: 60px;
    padding: 8px;
    font-size: 1rem;
    border-radius: 6px;
    border: 1px solid #ccc;
}

.timer-buttons button {
    padding: 12px 22px;
    font-size: 1rem;
    margin: 8px;
    border-radius: 8px;
    background-color: #026f25;
    color: #fff;
    border: none;
    cursor: pointer;
}

.timer-buttons button:hover {
    background-color: #049d34;
}

#counterEnviroment {
    align-items: center;
    background-color: #fff;
    border-radius: 12px;
    padding: 20px;
    margin-bottom: 0px;
    font-size: 2rem;
}

/* Reihe mit Minus-Button / Zahl / Plus-Button */
#counterRow {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
    width: 100%;
    margin-top: 30px;
}

#counter {
    min-width: 3ch;
    display: inline-block;
    text-align: center;
    font-size: 4rem;
    font-weight: bold;
    background: #fff;
    padding: 12px 22px;
    border-radius: 12px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.15);
    margin-top: 20px;
    margin-bottom: 20px;
}

.counterBtn {
    width: 100px;
    padding: 12px 0;
    font-size: 4rem;
    border-radius: 8px;
    background-color: #026f25;
    color: #fff;
    border: 2px solid #fff;
    cursor: pointer;
    margin: 15px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.counterBtn:hover {
    background-color: #049d34;
}

.minusBtn {
    font-size: 6rem;
}

#resetContainer button {
    padding: 12px 22px;
    font-size: 1rem;
    border-radius: 8px;
    background-color: #026f25;
    color: #fff;
    border: none;
    cursor: pointer;
    margin: 15px;
    border: 2px solid #fff;
}

#resetContainer button:hover {
    background-color: #049d34;
}

#independentContainer {
    display: none; /* Startzustand: eingeklappt */
    background-color: #fff;
    color: #000000;
    padding: 20px;
    border-radius: 12px;
    max-width: 450px;
    margin: 15px auto;
    text-align: center;
    box-shadow: 0 2px 10px rgba(0,0,0,0.2);
    transition: all 0.3s ease;
}

#independentTimer {
    font-size: 3rem;
    font-weight: bold;
    background-color: #fff;
    padding: 15px 20px;
    border-radius: 12px;
    margin-bottom: 15px;
    box-shadow: inset 0 2px 5px rgba(0,0,0,0.3);
}

.independentTimerInputs {
    display: flex;
    justify-content: center;
    gap: 10px;
    margin-bottom: 15px;
}

.independentTimerInputs input {
    width: 60px;
    padding: 8px;
    border-radius: 6px;
    border: 1px solid #ccc;
    font-size: 1rem;
}

.independentTimerInputs label {
    align-self: center;
}

/* Start/Stop/Reset Buttons des Zusatz-Timers */
.i-buttons button {
    padding: 10px 20px;
    font-size: 1rem;
    border-radius: 8px;
    background-color: #026f25;
    color: #fff;
    border: none;
    cursor: pointer;
    margin: 5px;
}

.i-buttons button:hover {
    background-color: #049d34;
}

main {
    flex: 1;
    width: 100%;
}

footer {
    background: #026f25;
    color: #fff;
    text-align: center;
    padding: 15px 0;
    margin-top: 1%;
    width: 100%;
}

footer a {
    color: #fff;
    text-decoration: none;
    font-weight: bold;
}

@media (max-width: 1024px) and (min-width: 751px) {
    .layout {
        display: grid;
        grid-template-columns: 1fr;
        gap: 20px;
        width: 90%;
        max-width: 800px;
        margin: 0 auto;
        padding: 0;
        box-sizing: border-box;
    }

    #left,
    #output,
    #right {
        width: 100%;
        max-width: 600px;
        margin: 0 auto;
    }

    #right {
        text-align: center;
    }

    #output {
        width: 100%;
        max-width: none;
        margin: 0 auto;
        min-width: 40%;
        min-height: 200px;
        font-size: 1rem;
    }

    #left {
        width: 100%;
        flex-shrink: 0;
        margin: 0;
    }

    #left input {
        width: 100%;
        max-width: 100%;
    }

    #independentContainer {
        max-width: 85%;
    }

    #independentTimer {
        font-size: 2.5rem;
        padding: 12px;
    }

    .independentTimerInputs input {
        width: 50px;
        padding: 6px;
        font-size: 0.9rem;
    }

    .independentTimerInputs button {
        padding: 8px 16px;
        font-size: 0.9rem;
    }

    footer {
        margin-top: 1%;
        margin-bottom: 0px;
    }
}

@media (max-width: 750px) {
    .layout {
        gap: 10px;
        width: 95%;
        margin: 0 auto;
        padding: 8px;
        display: flex;
        flex-direction: column;
    }

    #headline {
        width: 100%;
        word-wrap: break-word;
    }

    #left,
    #output,
    #right {
        width: 85%;
        max-width: 600px;
        margin: 0 auto;
    }

    #timer {
        font-size: 2.5rem;
        max-width: 100%;
        padding: 12px;
    }

    .timer-buttons button {
        max-width: 100%;
        padding: 8px 12px;
        font-size: 0.85rem;
    }

    #output {
        min-height: 150px;
        font-size: 0.9rem;
        display: flex;
        flex-direction: column;
        padding: 10px;
    }

    #left {
        display: flex;
        flex-direction: column;
    }

    #left input {
        padding: 6px;
        font-size: 0.85rem;
    }

    #left label {
        font-size: 0.85rem;
    }

    #counter {
        font-size: 3rem;
        padding: 15px;
    }

    .counterBtn {
        width: 60px;
        font-size: 2rem;
        padding: 10px 0;
    }

    .minusBtn {
        font-size: 3rem;
    }

    #resetContainer button {
        font-size: 1rem;
        padding: 8px 16px;
    }

    #independentTimer {
        font-size: 2rem;
        padding: 15px;
        max-width: 95%;
    }

    #iMin, #iSec, #iMs {
        width: 50px;
        padding: 6px;
        font-size: 0.9rem;
    }

    #iStartBtn, #iStopBtn, #iResetBtn {
        font-size: 0.9rem;
        padding: 8px 14px;
    }

    #independentContainer {
        padding: 15px;
    }

    .independentTimerInputs {
        flex-direction: column;
        gap: 8px;
        align-items: center;
    }

    .i-buttons {
        display: flex;
        flex-direction: column;
        gap: 8px;
    }
}html, body {
    height: 100%;
    width: 100%;
    margin: 0;
    padding: 0;
    display: flex;
    overflow-x: hidden;
}

body {
    font-family: 'Arial', Tahoma, Geneva, Verdana, sans-serif;
    background: #f0f4f8;
    margin: 0;
    padding: 0;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    overflow-x: hidden;
}

#headline {
    background-color: #026f25;
    color: #fff;
    width: 100%;
    padding: 20px 0;
    text-align: center;
    box-shadow: 0 2px 6px rgba(0,0,0,0.2);
    background-image: linear-gradient(#026f25, #014316);
    display: flex;
    justify-content: center;
    align-items: center;
}

#headline h1 {
    margin: 0 auto;
    font-size: 1.8rem;
    justify-content: center;
}

#headline a {
    justify-content: start;
    position: absolute;
    left: 1rem;
    font-size: 30px;
}

.layout {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: 25px;
    width: 100%;
    margin-left: 30px;
    margin-top: 30px;
    margin-right: 20px;
}

#left {
    display: flex;
    flex-direction: column;
    text-align: left;
    margin: 20px;
}

#left label {
    font-weight: bold;
    margin: 12px 0 6px;
}

#left input {
    padding: 12px;
    font-size: 1.05rem;
    border-radius: 6px;
    border: 1px solid #ccc;
    margin-bottom: 8px;
}

#left input.inputError {
    border: 2px solid #c0392b;
    background-color: #fdecea;
}

#left #confirmButton {
    padding: 12px 25px;
    margin-top: 12px;
    font-size: 1rem;
    background-color: #026f25;
    color: #fff;
    border: none;
    border-radius: 6px;
    cursor: pointer;
}

#left #confirmButton:hover {
    background-color: #049d34;
}

#left #recalcButton {
    padding: 12px 25px;
    margin-top: 4px;
    margin-bottom: 12px;
    font-size: 1rem;
    background-color: #1a5276;
    color: #fff;
    border: none;
    border-radius: 6px;
    cursor: pointer;
}

#left #recalcButton:hover {
    background-color: #21618c;
}

#output {
    background: #fff;
    padding: 15px;
    border-radius: 10px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.15);
    min-height: 250px;
    width: 85%;
    margin-top: 20px;
    margin-left: 20px;
}

#output p.setDone {
    color: #9aa0a6;
    opacity: 0.7;
}

#output p.setDone b {
    color: #9aa0a6;
}

#right {
    text-align: center;
    margin: 20px;
    width: 85%;
}

#timerHeadline {
    margin-bottom: 10px;
}

#timerEnviroment {
    background-color: #fff;
    font-size: 2rem;
    font-weight: bold;
    padding: 20px;
    border-radius: 12px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.15);
    margin-bottom: 35px;
}

#timer {
    font-size: 4rem;
    font-weight: bold;
    background: #fff;
    padding: 20px;
    border-radius: 12px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.15);
    margin-bottom: 20px;
}

.time-inputs label {
    margin: 5px;
}
.time-inputs input {
    width: 60px;
    padding: 8px;
    font-size: 1rem;
    border-radius: 6px;
    border: 1px solid #ccc;
}

.timer-buttons button {
    padding: 12px 22px;
    font-size: 1rem;
    margin: 8px;
    border-radius: 8px;
    background-color: #026f25;
    color: #fff;
    border: none;
    cursor: pointer;
}

.timer-buttons button:hover {
    background-color: #049d34;
}

#counterEnviroment {
    align-items: center;
    background-color: #fff;
    border-radius: 12px;
    padding: 20px;
    margin-bottom: 0px;
    font-size: 2rem;
}

/* Reihe mit Minus-Button / Zahl / Plus-Button */
#counterRow {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
    width: 100%;
    margin-top: 30px;
}

#counter {
    min-width: 3ch;
    display: inline-block;
    text-align: center;
    font-size: 4rem;
    font-weight: bold;
    background: #fff;
    padding: 12px 22px;
    border-radius: 12px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.15);
    margin-top: 20px;
    margin-bottom: 20px;
}

.counterBtn {
    width: 100px;
    padding: 12px 0;
    font-size: 4rem;
    border-radius: 8px;
    background-color: #026f25;
    color: #fff;
    border: 2px solid #fff;
    cursor: pointer;
    margin: 15px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.counterBtn:hover {
    background-color: #049d34;
}

.minusBtn {
    font-size: 6rem;
}

#resetContainer button {
    padding: 12px 22px;
    font-size: 1rem;
    border-radius: 8px;
    background-color: #026f25;
    color: #fff;
    border: none;
    cursor: pointer;
    margin: 15px;
    border: 2px solid #fff;
}

#resetContainer button:hover {
    background-color: #049d34;
}

#independentContainer {
    display: none; /* Startzustand: eingeklappt */
    background-color: #fff;
    color: #000000;
    padding: 20px;
    border-radius: 12px;
    max-width: 450px;
    margin: 15px auto;
    text-align: center;
    box-shadow: 0 2px 10px rgba(0,0,0,0.2);
    transition: all 0.3s ease;
}

#independentTimer {
    font-size: 3rem;
    font-weight: bold;
    background-color: #fff;
    padding: 15px 20px;
    border-radius: 12px;
    margin-bottom: 15px;
    box-shadow: inset 0 2px 5px rgba(0,0,0,0.3);
}

.independentTimerInputs {
    display: flex;
    justify-content: center;
    gap: 10px;
    margin-bottom: 15px;
}

.independentTimerInputs input {
    width: 60px;
    padding: 8px;
    border-radius: 6px;
    border: 1px solid #ccc;
    font-size: 1rem;
}

.independentTimerInputs label {
    align-self: center;
}

/* Start/Stop/Reset Buttons des Zusatz-Timers */
.i-buttons button {
    padding: 10px 20px;
    font-size: 1rem;
    border-radius: 8px;
    background-color: #026f25;
    color: #fff;
    border: none;
    cursor: pointer;
    margin: 5px;
}

.i-buttons button:hover {
    background-color: #049d34;
}

main {
    flex: 1;
    width: 100%;
}

footer {
    background: #026f25;
    color: #fff;
    text-align: center;
    padding: 15px 0;
    margin-top: 1%;
    width: 100%;
}

footer a {
    color: #fff;
    text-decoration: none;
    font-weight: bold;
}

@media (max-width: 1024px) and (min-width: 751px) {
    .layout {
        display: grid;
        grid-template-columns: 1fr;
        gap: 20px;
        width: 90%;
        max-width: 800px;
        margin: 0 auto;
        padding: 0;
        box-sizing: border-box;
    }

    #left,
    #output,
    #right {
        width: 100%;
        max-width: 600px;
        margin: 0 auto;
    }

    #right {
        text-align: center;
    }

    #output {
        width: 100%;
        max-width: none;
        margin: 0 auto;
        min-width: 40%;
        min-height: 200px;
        font-size: 1rem;
    }

    #left {
        width: 100%;
        flex-shrink: 0;
        margin: 0;
    }

    #left input {
        width: 100%;
        max-width: 100%;
    }

    #independentContainer {
        max-width: 85%;
    }

    #independentTimer {
        font-size: 2.5rem;
        padding: 12px;
    }

    .independentTimerInputs input {
        width: 50px;
        padding: 6px;
        font-size: 0.9rem;
    }

    .independentTimerInputs button {
        padding: 8px 16px;
        font-size: 0.9rem;
    }

    footer {
        margin-top: 1%;
        margin-bottom: 0px;
    }
}

@media (max-width: 750px) {
    .layout {
        gap: 10px;
        width: 95%;
        margin: 0 auto;
        padding: 8px;
        display: flex;
        flex-direction: column;
    }

    #headline {
        width: 100%;
        word-wrap: break-word;
    }

    #left,
    #output,
    #right {
        width: 85%;
        max-width: 600px;
        margin: 0 auto;
    }

    #timer {
        font-size: 2.5rem;
        max-width: 100%;
        padding: 12px;
    }

    .timer-buttons button {
        max-width: 100%;
        padding: 8px 12px;
        font-size: 0.85rem;
    }

    #output {
        min-height: 150px;
        font-size: 0.9rem;
        display: flex;
        flex-direction: column;
        padding: 10px;
    }

    #left {
        display: flex;
        flex-direction: column;
    }

    #left input {
        padding: 6px;
        font-size: 0.85rem;
    }

    #left label {
        font-size: 0.85rem;
    }

    #counter {
        font-size: 3rem;
        padding: 15px;
    }

    .counterBtn {
        width: 60px;
        font-size: 2rem;
        padding: 10px 0;
    }

    .minusBtn {
        font-size: 3rem;
    }

    #resetContainer button {
        font-size: 1rem;
        padding: 8px 16px;
    }

    #independentTimer {
        font-size: 2rem;
        padding: 15px;
        max-width: 95%;
    }

    #iMin, #iSec, #iMs {
        width: 50px;
        padding: 6px;
        font-size: 0.9rem;
    }

    #iStartBtn, #iStopBtn, #iResetBtn {
        font-size: 0.9rem;
        padding: 8px 14px;
    }

    #independentContainer {
        padding: 15px;
    }

    .independentTimerInputs {
        flex-direction: column;
        gap: 8px;
        align-items: center;
    }

    .i-buttons {
        display: flex;
        flex-direction: column;
        gap: 8px;
    }
}