/* ==========================================================
   Momentum — Modern Glassmorphism Dashboard
   ========================================================== */

:root {
    --glass-bg: rgba(255, 255, 255, 0.3);
    --glass-border: rgba(255, 255, 255, 0.2);
    --glass-hover: rgba(255, 255, 255, 0.18);
    --text-main: #ffffff;
    --text-sub: rgba(255, 255, 255, 0.75);
    --accent: #a5b4fc;
    --card-bg: rgba(17, 20, 40, 0.6);
    --card-bg-hover: rgba(30, 35, 65, 0.65);
    --card-border: rgba(255, 255, 255, 0.18);
    --radius-lg: 24px;
    --radius-md: 16px;
    --radius-pill: 999px;
    --shadow-soft: 0 8px 32px rgba(0, 0, 0, 0.25);
    --blur: blur(16px);
}

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

body {
    font-family: "Outfit", "Noto Sans KR", sans-serif;
    color: var(--text-main);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 28px;
    padding: 100px 24px 140px;
    overflow-x: hidden;
}

/* ----- 배경 이미지 (background.js가 body에 추가하는 img) ----- */
body > img {
    position: fixed;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    z-index: -2;
    opacity: 0;
    transition: opacity 1.4s ease;
    animation: bgZoom 30s ease-in-out infinite alternate;
}

body > img.loaded {
    opacity: 1;
}

/* 배경 위 어두운 그라데이션 오버레이 */
body::before {
    content: "";
    position: fixed;
    inset: 0;
    background: linear-gradient(
        180deg,
        rgba(15, 15, 35, 0.55) 0%,
        rgba(15, 15, 35, 0.35) 50%,
        rgba(15, 15, 35, 0.65) 100%
    );
    z-index: -1;
}

@keyframes bgZoom {
    from { transform: scale(1); }
    to   { transform: scale(1.08); }
}

/* ----- 공통 페이드인 ----- */
#clock,
#login-form,
#greeting,
#todo-form,
#todo-list,
#quote,
#weather {
    animation: fadeUp 0.9s ease both;
}

@keyframes fadeUp {
    from { opacity: 0; transform: translateY(16px); }
    to   { opacity: 1; transform: translateY(0); }
}

/* ----- 날짜 ----- */
#date {
    font-size: clamp(0.95rem, 2.2vw, 1.15rem);
    font-weight: 500;
    letter-spacing: 0.35em;
    text-indent: 0.35em; /* letter-spacing으로 인한 중앙 쏠림 보정 */
    color: var(--text-sub);
    text-transform: uppercase;
    margin-bottom: -18px;
    animation: fadeUp 0.9s ease both;
}

/* ----- 시계 ----- */
#clock {
    font-size: clamp(4rem, 12vw, 8rem);
    font-weight: 700;
    letter-spacing: -0.02em;
    font-variant-numeric: tabular-nums;
    background: linear-gradient(
        180deg,
        #ffffff 30%,
        rgba(255, 255, 255, 0.55) 100%
    );
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    filter: drop-shadow(0 6px 28px rgba(0, 0, 0, 0.4));
}

/* 콜론 깜빡임 효과를 위한 은은한 펄스 */
@keyframes clockGlow {
    0%, 100% { filter: drop-shadow(0 6px 28px rgba(0, 0, 0, 0.4)); }
    50%      { filter: drop-shadow(0 6px 36px rgba(165, 180, 252, 0.35)); }
}

#clock {
    animation: fadeUp 0.9s ease both, clockGlow 4s ease-in-out infinite;
}

/* ----- 인사말 ----- */
#greeting {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    font-size: clamp(1.7rem, 4.5vw, 2.6rem);
    font-weight: 700;
    letter-spacing: -0.01em;
    text-align: center;
    text-shadow: 0 2px 16px rgba(0, 0, 0, 0.35);
}

#greeting .greeting-line2 {
    font-size: clamp(1rem, 2.4vw, 1.2rem);
    font-weight: 400;
    color: var(--text-sub);
    letter-spacing: 0.02em;
    text-shadow: 0 1px 8px rgba(0, 0, 0, 0.3);
}

/* 이름은 그라데이션으로 강조 */
#greeting .greeting-name {
    font-weight: 700;
    background: linear-gradient(135deg, #c7d2fe, #f0abfc);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    text-shadow: none;
}

/* ----- 로그인 폼 ----- */
#login-form {
    display: flex;
    flex-direction: column;
    align-items: stretch;
    gap: 14px;
    width: min(360px, 88vw);
    padding: 36px 32px 28px;
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: var(--radius-lg);
    backdrop-filter: var(--blur);
    -webkit-backdrop-filter: var(--blur);
    box-shadow: var(--shadow-soft);
    text-align: center;
}

#login-form .login-title {
    font-size: 1.5rem;
    font-weight: 700;
    letter-spacing: -0.01em;
}

#login-form .login-sub {
    font-size: 0.92rem;
    color: var(--text-sub);
    margin-top: -6px;
    margin-bottom: 8px;
}

#login-form input[type="text"] {
    background: rgba(255, 255, 255, 0.12);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-pill);
    outline: none;
    color: var(--text-main);
    font-size: 1rem;
    font-family: inherit;
    padding: 14px 22px;
    text-align: center;
    transition: background 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
}

#login-form input[type="text"]::placeholder {
    color: var(--text-sub);
}

#login-form input[type="text"]:focus {
    background: rgba(255, 255, 255, 0.18);
    border-color: var(--accent);
    box-shadow: 0 0 0 4px rgba(165, 180, 252, 0.18);
}

#login-form input[type="submit"] {
    background: linear-gradient(135deg, #818cf8, #e879f9);
    color: #ffffff;
    border: none;
    border-radius: var(--radius-pill);
    padding: 14px 28px;
    font-size: 1rem;
    font-weight: 600;
    font-family: inherit;
    letter-spacing: 0.02em;
    cursor: pointer;
    box-shadow: 0 4px 16px rgba(129, 140, 248, 0.4);
    transition: transform 0.2s ease, box-shadow 0.2s ease, filter 0.2s ease;
}

#login-form input[type="submit"]:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(129, 140, 248, 0.55);
    filter: brightness(1.08);
}

#login-form input[type="submit"]:active {
    transform: translateY(0);
}

#login-form a {
    color: var(--text-sub);
    font-size: 0.85rem;
    text-decoration: none;
    margin-top: 4px;
    transition: color 0.2s ease;
}

#login-form a:hover {
    color: var(--text-main);
}

/* ----- 할 일 카드 ----- */
#todo-card {
    width: min(500px, 90vw);
    display: flex;
    flex-direction: column;
    gap: 14px;
    padding: 24px;
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: var(--radius-lg);
    backdrop-filter: var(--blur);
    -webkit-backdrop-filter: var(--blur);
    box-shadow: var(--shadow-soft);
    animation: fadeUp 0.9s ease both;
}

#todo-card .todo-title {
    font-size: 1.15rem;
    font-weight: 700;
    letter-spacing: 0.01em;
    text-align: left;
    padding-bottom: 12px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.14);
}

/* ----- 할 일 폼 ----- */
#todo-form input {
    width: 100%;
    padding: 15px 22px;
    font-size: 1rem;
    font-family: inherit;
    color: var(--text-main);
    background: rgba(255, 255, 255, 0.12);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-pill);
    outline: none;
    transition: background 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
}

#todo-form input::placeholder {
    color: var(--text-sub);
}

#todo-form input:focus {
    background: var(--glass-hover);
    border-color: var(--accent);
    box-shadow: 0 0 0 4px rgba(165, 180, 252, 0.18), var(--shadow-soft);
}

/* ----- 할 일 목록 ----- */
#todo-list {
    list-style: none;
    width: 100%;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

/* 할 일이 하나도 없을 때 안내 문구 */
#todo-list:empty::after {
    content: "오늘의 할 일을 추가해보세요 ✨";
    display: block;
    text-align: center;
    padding: 18px;
    font-size: 0.9rem;
    color: var(--text-sub);
}

#todo-list li {
    position: relative;
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 14px 16px 14px 22px;
    background: rgba(255, 255, 255, 0.14);
    border: 1px solid rgba(255, 255, 255, 0.16);
    border-radius: var(--radius-md);
    overflow: hidden;
    transition: background 0.25s ease, transform 0.25s ease,
                box-shadow 0.25s ease, border-color 0.25s ease;
    animation: fadeUp 0.4s ease both;
}

/* 왼쪽 그라데이션 액센트 바 */
#todo-list li::before {
    content: "";
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 4px;
    background: linear-gradient(180deg, #a5b4fc, #f0abfc);
    opacity: 0.7;
    transition: opacity 0.25s ease, width 0.25s ease;
}

#todo-list li:hover {
    background: rgba(255, 255, 255, 0.22);
    transform: translateX(6px);
    box-shadow: 0 6px 24px rgba(0, 0, 0, 0.25);
    border-color: rgba(255, 255, 255, 0.35);
}

#todo-list li:hover::before {
    opacity: 1;
    width: 5px;
}

#todo-list li span {
    flex: 1;
    font-size: 1rem;
    line-height: 1.5;
    word-break: break-all;
}

/* 삭제 버튼 — 평소엔 은은하게, 호버 시 붉은 원형 버튼 */
#todo-list li button {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 28px;
    height: 28px;
    flex-shrink: 0;
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid transparent;
    border-radius: 50%;
    color: var(--text-sub);
    font-size: 0.8rem;
    font-family: inherit;
    line-height: 1;
    cursor: pointer;
    opacity: 0;
    transform: scale(0.8);
    transition: all 0.2s ease;
}

#todo-list li:hover button {
    opacity: 1;
    transform: scale(1);
}

#todo-list li button:hover {
    background: rgba(248, 113, 113, 0.25);
    border-color: rgba(248, 113, 113, 0.5);
    color: #fca5a5;
    transform: scale(1.1);
}

/* ----- 명언 ----- */
#quote {
    position: relative;
    width: min(680px, 90vw);
    text-align: center;
    display: flex;
    flex-direction: column;
    gap: 10px;
    margin-top: 4px;
    padding: 28px 32px 8px;
}

/* 장식용 큰따옴표 */
#quote::before {
    content: "\201C";
    position: absolute;
    top: -14px;
    left: 50%;
    transform: translateX(-50%);
    font-family: Georgia, "Noto Serif KR", serif;
    font-size: 5rem;
    line-height: 1;
    background: linear-gradient(135deg, #c7d2fe, #f0abfc);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    opacity: 0.9;
    pointer-events: none;
}

#quote span:first-child {
    font-family: "Noto Serif KR", serif;
    font-size: clamp(1.1rem, 2.6vw, 1.35rem);
    font-weight: 400;
    line-height: 1.7;
    letter-spacing: 0.01em;
    text-shadow: 0 2px 16px rgba(0, 0, 0, 0.45);
}

#quote span:last-child {
    font-size: 0.9rem;
    font-weight: 500;
    letter-spacing: 0.12em;
    color: var(--text-sub);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
}

/* 저자 이름 양옆의 가는 라인 */
#quote span:last-child:not(:empty)::before,
#quote span:last-child:not(:empty)::after {
    content: "";
    display: block;
    width: 36px;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.45));
}

#quote span:last-child:not(:empty)::after {
    background: linear-gradient(90deg, rgba(255, 255, 255, 0.45), transparent);
}

/* ----- 날씨 ----- */
#weather {
    position: fixed;
    top: 24px;
    right: 24px;
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 22px 10px 12px;
    background: rgba(17, 20, 40, 0.32);
    border: 1px solid rgba(255, 255, 255, 0.14);
    border-radius: var(--radius-lg);
    backdrop-filter: var(--blur);
    -webkit-backdrop-filter: var(--blur);
    box-shadow: var(--shadow-soft);
    transition: background 0.2s ease;
}

#weather:hover {
    background: var(--card-bg-hover);
}

#weather img {
    width: 56px;
    height: 56px;
    filter: drop-shadow(0 2px 6px rgba(0, 0, 0, 0.35));
}

/* 아이콘이 로드되기 전엔 숨김 (깨진 이미지 방지) */
#weather img:not([src]) {
    display: none;
}

#weather .weather-info {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

#weather span:first-child {
    font-size: 1.05rem;
    font-weight: 600;
}

#weather span:last-child {
    font-size: 0.85rem;
    color: var(--text-sub);
}

/* ----- 숨김 처리 (JS 토글용 — 반드시 최우선) ----- */
.hidden {
    display: none !important;
}

/* ----- 태블릿 이하: 날씨를 고정 배치에서 일반 흐름으로 ----- */
/* 좁은 화면에서 우측 상단 고정 날씨가 시계와 겹치는 것 방지 */
@media (max-width: 768px) {
    body {
        padding-top: 40px;
    }

    #weather {
        position: static;
        order: -1;          /* body가 flex column이라 맨 위로 올라감 */
        align-self: center;
        padding: 8px 18px 8px 10px;
    }

    #weather img {
        width: 44px;
        height: 44px;
    }
}

/* ----- 모바일 ----- */
@media (max-width: 600px) {
    body {
        padding: 32px 16px 80px;
    }

    #login-form {
        flex-direction: column;
        border-radius: var(--radius-lg);
        width: min(480px, 86vw);
    }

    #login-form input[type="text"] {
        width: 100%;
        text-align: center;
    }

    #login-form input[type="submit"] {
        width: 100%;
    }
}