/* =========================
   기본 설정
========================= */

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

html,
body {
    width: 100%;
    height: 100%;
}

body {
    font-family:
        -apple-system,
        BlinkMacSystemFont,
        "Segoe UI",
        Roboto,
        Helvetica,
        Arial,
        sans-serif;

    color: #ffffff;

    background-color: #172535;

    /*
        JavaScript에서 랜덤 이미지로 변경할 수 있습니다.
        예:
        document.body.style.backgroundImage = `url("${image}")`;
    */
    background-image: url("images/background.jpg");
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    background-attachment: fixed;

    overflow: hidden;
}

.hidden
{
    display: none;
}

/* =========================
   배경 오버레이
========================= */

.background-overlay {
    position: fixed;

    inset: 0;

    background:
        linear-gradient(
            rgba(7, 18, 31, 0.42),
            rgba(7, 18, 31, 0.58)
        );

    z-index: 0;

    pointer-events: none;
}


/* =========================
   전체 컨테이너
========================= */

.container {
    position: relative;

    width: 100%;
    height: 100vh;

    z-index: 1;
}


/* =========================
   중앙 콘텐츠
========================= */

.main-content {
    position: absolute;

    top: 50%;
    left: 50%;

    transform: translate(-50%, -50%);

    width: min(90%, 720px);

    display: flex;
    flex-direction: column;

    align-items: center;
}


/* =========================
   시계
========================= */

.clock-section {
    text-align: center;

    margin-bottom: 35px;
}

.clock-section h1 {
    font-size: clamp(3rem, 6vw, 5rem);

    font-weight: 700;

    line-height: 1;

    letter-spacing: 1px;

    text-shadow:
        0 3px 12px rgba(0, 0, 0, 0.5);
}

.clock-section p {
    margin-top: 18px;

    font-size: 0.95rem;

    font-weight: 500;

    text-shadow:
        0 2px 8px rgba(0, 0, 0, 0.7);
}


/* =========================
   로그인
========================= */

.login-section {
    width: 100%;

    display: flex;
    justify-content: center;

    margin-bottom: 20px;
}


.login-form {
    display: flex;

    width: min(100%, 320px);

    gap: 10px;
}

.login-form input,
.todo-form input {
    flex: 1;

    min-width: 0;

    height: 44px;

    padding: 0 15px;

    border: 1px solid rgba(255, 255, 255, 0.3);

    border-radius: 22px;

    outline: none;

    color: #ffffff;

    background: rgba(10, 25, 40, 0.55);

    backdrop-filter: blur(8px);

    transition:
        border-color 0.2s,
        background 0.2s;
}

.login-form input::placeholder,
.todo-form input::placeholder {
    color: rgba(255, 255, 255, 0.65);
}

.login-form input:focus,
.todo-form input:focus {
    border-color: rgba(255, 255, 255, 0.75);

    background: rgba(10, 25, 40, 0.7);
}


button {
    height: 44px;

    padding: 0 18px;

    border: 1px solid rgba(255, 255, 255, 0.3);

    border-radius: 22px;

    color: #ffffff;

    background: rgba(20, 40, 60, 0.65);

    backdrop-filter: blur(8px);

    cursor: pointer;

    transition:
        background 0.2s,
        transform 0.2s;
}

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

button:active {
    transform: scale(0.96);
}


/* =========================
   인사말
========================= */

.greeting {
    font-size: 1.2rem;

    font-weight: 600;

    text-shadow:
        0 2px 8px rgba(0, 0, 0, 0.6);
}

#greeting #username {
    font-weight: 700;
}


/* 숨김 */

.hidden {
    display: none !important;
}


/* =========================
   Todo
========================= */
.todo-section {
    width: min(100%, 420px);
}


.todo-form {
    display: flex;

    width: 100%;

    gap: 10px;

    margin-bottom: 10px;
}


/* Todo 목록 */

.todo-list {
    list-style: none;

    display: flex;
    flex-direction: column;

    gap: 7px;

    max-height: 230px;

    overflow-y: auto;

    padding-right: 3px;

    background: rgba(0, 0, 0, 0.45);

    border-radius: 8px;

    backdrop-filter: blur(3px);
}


/* 스크롤바 */

.todo-list::-webkit-scrollbar {
    width: 5px;
}

.todo-list::-webkit-scrollbar-track {
    background: transparent;
}

.todo-list::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.3);

    border-radius: 10px;
}


/* Todo 하나 */

.todo-item {
    display: flex;

    align-items: center;

    min-height: 42px;

    padding: 6px 8px 6px 14px;

    border: 1px solid rgba(255, 255, 255, 0.18);

    border-radius: 20px;

    background: rgba(10, 25, 40, 0.5);

    backdrop-filter: blur(8px);
}


/* Todo 텍스트 */

.todo-text {
    flex: 1;

    overflow: hidden;

    white-space: nowrap;

    text-overflow: ellipsis;

    font-size: 0.9rem;
}


/* 완료된 Todo */

.todo-item.completed .todo-text {
    text-decoration: line-through;

    opacity: 0.5;
}


/* Todo 버튼 */

.todo-actions {
    display: flex;

    gap: 5px;

    margin-left: 10px;
}

.todo-actions button {
    width: 32px;
    height: 30px;

    padding: 0;

    border-radius: 15px;

    font-size: 0.75rem;
}


/* =========================
   명언
========================= */

.quote-section {
    margin-top: 35px;

    padding: 12px 20px;

    text-align: center;

    background: rgba(0, 0, 0, 0.45);

    border-radius: 8px;

    text-shadow:
        0 2px 8px rgba(0, 0, 0, 0.7);
}

.quote-section p {
    font-size: 0.9rem;

    font-style: italic;

    line-height: 1.6;
}

.quote-section span {
    display: block;

    margin-top: 5px;

    font-size: 0.75rem;

    opacity: 0.75;
}


/* =========================
   날씨
========================= */

.weather {
    position: absolute;

    top: 20px;
    right: 20px;

    min-width: 115px;

    padding: 10px 13px;

    border-radius: 10px;

    background: rgba(15, 27, 40, 0.7);

    backdrop-filter: blur(8px);

    box-shadow:
        0 5px 20px rgba(0, 0, 0, 0.2);

    text-align: right;
}

.weather-location {
    margin-bottom: 5px;

    font-size: 0.75rem;

    font-weight: 600;

    opacity: 0.85;
}

.weather-info {
    display: flex;

    justify-content: flex-end;

    align-items: center;

    gap: 7px;
}

#weather-temperature {
    font-size: 1.25rem;

    font-weight: 600;
}

.weather-icon {
    font-size: 1rem;
}

.weather-status {
    margin-top: 2px;

    font-size: 0.7rem;

    opacity: 0.75;
}


/* =========================
   모바일
========================= */

@media (max-width: 600px) {

    body {
        overflow-y: auto;
    }

    .main-content {
        width: 90%;

        top: 48%;
    }

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

    .clock-section h1 {
        font-size: 3.2rem;
    }

    .clock-section p {
        margin-top: 12px;
    }

    .login-form,
    .todo-form {
        width: 100%;
    }

    .weather {
        top: 12px;
        right: 12px;

        min-width: 100px;
    }

    .quote-section {
        margin-top: 25px;
    }

}/* =========================
   기본 설정
========================= */

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

html,
body {
    width: 100%;
    height: 100%;
}

body {
    font-family:
        -apple-system,
        BlinkMacSystemFont,
        "Segoe UI",
        Roboto,
        Helvetica,
        Arial,
        sans-serif;

    color: #ffffff;

    background-color: #172535;

    /*
        JavaScript에서 랜덤 이미지로 변경할 수 있습니다.
        예:
        document.body.style.backgroundImage = `url("${image}")`;
    */
    background-image: url("images/background.jpg");
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    background-attachment: fixed;

    overflow: hidden;
}


/* =========================
   배경 오버레이
========================= */

.background-overlay {
    position: fixed;

    inset: 0;

    background:
        linear-gradient(
            rgba(7, 18, 31, 0.42),
            rgba(7, 18, 31, 0.58)
        );

    z-index: 0;

    pointer-events: none;
}


/* =========================
   전체 컨테이너
========================= */

.container {
    position: relative;

    width: 100%;
    height: 100vh;

    z-index: 1;
}


/* =========================
   중앙 콘텐츠
========================= */

.main-content {
    position: absolute;

    top: 50%;
    left: 50%;

    transform: translate(-50%, -50%);

    width: min(90%, 720px);

    display: flex;
    flex-direction: column;

    align-items: center;
}


/* =========================
   시계
========================= */

.clock-section {
    text-align: center;

    margin-bottom: 35px;
}

.clock-section h1 {
    font-size: clamp(3rem, 6vw, 5rem);

    font-weight: 700;

    line-height: 1;

    letter-spacing: 1px;

    text-shadow:
        0 3px 12px rgba(0, 0, 0, 0.5);
}

.clock-section p {
    margin-top: 18px;

    font-size: 0.95rem;

    font-weight: 500;

    text-shadow:
        0 2px 8px rgba(0, 0, 0, 0.7);
}


/* =========================
   로그인
========================= */

.login-section {
    width: 100%;

    display: flex;
    justify-content: center;

    margin-bottom: 20px;
}


.login-form {
    display: flex;

    width: min(100%, 320px);

    gap: 10px;
}

.login-form input,
.todo-form input {
    flex: 1;

    min-width: 0;

    height: 44px;

    padding: 0 15px;

    border: 1px solid rgba(255, 255, 255, 0.3);

    border-radius: 22px;

    outline: none;

    color: #ffffff;

    background: rgba(10, 25, 40, 0.55);

    backdrop-filter: blur(8px);

    transition:
        border-color 0.2s,
        background 0.2s;
}

.login-form input::placeholder,
.todo-form input::placeholder {
    color: rgba(255, 255, 255, 0.65);
}

.login-form input:focus,
.todo-form input:focus {
    border-color: rgba(255, 255, 255, 0.75);

    background: rgba(10, 25, 40, 0.7);
}


button {
    height: 44px;

    padding: 0 18px;

    border: 1px solid rgba(255, 255, 255, 0.3);

    border-radius: 22px;

    color: #ffffff;

    background: rgba(20, 40, 60, 0.65);

    backdrop-filter: blur(8px);

    cursor: pointer;

    transition:
        background 0.2s,
        transform 0.2s;
}

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

button:active {
    transform: scale(0.96);
}


/* =========================
   인사말
========================= */

.greeting {
    font-size: 1.2rem;

    font-weight: 600;

    text-shadow:
        0 2px 8px rgba(0, 0, 0, 0.6);
}

#greeting #username {
    font-weight: 700;
}


/* 숨김 */

.hidden {
    display: none !important;
}


/* =========================
   Todo
========================= */

.todo-section {
    width: min(100%, 420px);
}


.todo-form {
    display: flex;

    width: 100%;

    gap: 10px;

    margin-bottom: 10px;
}


/* Todo 목록 */

.todo-list {
    list-style: none;

    display: flex;
    flex-direction: column;

    gap: 7px;

    max-height: 230px;

    overflow-y: auto;

    padding-right: 3px;
}


/* 스크롤바 */

.todo-list::-webkit-scrollbar {
    width: 5px;
}

.todo-list::-webkit-scrollbar-track {
    background: transparent;
}

.todo-list::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.3);

    border-radius: 10px;
}


/* Todo 하나 */

.todo-item {
    display: flex;

    align-items: center;

    min-height: 42px;

    padding: 6px 8px 6px 14px;

    border: 1px solid rgba(255, 255, 255, 0.18);

    border-radius: 20px;

    background: rgba(10, 25, 40, 0.5);

    backdrop-filter: blur(8px);
}


/* Todo 텍스트 */

.todo-text {
    flex: 1;

    overflow: hidden;

    white-space: nowrap;

    text-overflow: ellipsis;

    font-size: 0.9rem;
}


/* 완료된 Todo */

.todo-item.completed .todo-text {
    text-decoration: line-through;

    opacity: 0.5;
}


/* Todo 버튼 */

.todo-actions {
    display: flex;

    gap: 5px;

    margin-left: 10px;
}

.todo-actions button {
    width: 32px;
    height: 30px;

    padding: 0;

    border-radius: 15px;

    font-size: 0.75rem;
}


/* =========================
   명언
========================= */

.quote-section {
    margin-top: 35px;

    text-align: center;

    opacity: 0.9;

    text-shadow:
        0 2px 8px rgba(0, 0, 0, 0.7);
}

.quote-section p {
    font-size: 0.9rem;

    font-style: italic;

    line-height: 1.6;
}

.quote-section span {
    display: block;

    margin-top: 5px;

    font-size: 0.75rem;

    opacity: 0.75;
}


/* =========================
   날씨
========================= */

.weather {
    position: absolute;

    top: 20px;
    right: 20px;

    min-width: 115px;

    padding: 10px 13px;

    border-radius: 10px;

    background: rgba(15, 27, 40, 0.7);

    backdrop-filter: blur(8px);

    box-shadow:
        0 5px 20px rgba(0, 0, 0, 0.2);

    text-align: right;
}

.weather-location {
    margin-bottom: 5px;

    font-size: 0.75rem;

    font-weight: 600;

    opacity: 0.85;
}

.weather-info {
    display: flex;

    justify-content: flex-end;

    align-items: center;

    gap: 7px;
}

#weather-temperature {
    font-size: 1.25rem;

    font-weight: 600;
}

.weather-icon {
    font-size: 1rem;
}

.weather-status {
    margin-top: 2px;

    font-size: 0.7rem;

    opacity: 0.75;
}


/* =========================
   모바일
========================= */

@media (max-width: 600px) {

    body {
        overflow-y: auto;
    }

    .main-content {
        width: 90%;

        top: 48%;
    }

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

    .clock-section h1 {
        font-size: 3.2rem;
    }

    .clock-section p {
        margin-top: 12px;
    }

    .login-form,
    .todo-form {
        width: 100%;
    }

    .weather {
        top: 12px;
        right: 12px;

        min-width: 100px;
    }

    .quote-section {
        margin-top: 25px;
    }

}