@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+KR:wght@300;400;500;700&display=swap');
@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@500;700&display=swap');

:root {
    --accent-color: #8ab4f8;
    --accent-hover: #aecbfb;
    --accent-text: #ffffff;
    --bg-color: color-mix(in srgb, var(--accent-color) 15%, #18181A);
    --sidebar-bg: color-mix(in srgb, var(--accent-color) 75%, #1f1f22);
    --card-bg: color-mix(in srgb, var(--accent-color) 20%, #28282C);
    --text-primary: #f0f0f0;
    --text-secondary: #a0a0a0;
    --border-color: color-mix(in srgb, var(--accent-color) 35%, #383838);
    --hover-bg: color-mix(in srgb, var(--accent-color) 40%, #303035);
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.3);
    --shadow-md: 0 4px 12px rgba(0,0,0,0.4);
    --radius-md: 10px;
    --radius-lg: 16px;
    --transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    --glass-gradient: linear-gradient(145deg, rgba(255,255,255,0.05) 0%, rgba(0,0,0,0.15) 100%);
    --bg-gradient: linear-gradient(135deg, var(--bg-color) 0%, color-mix(in srgb, var(--bg-color) 85%, #0a0a0c) 100%);
    --sidebar-gradient: linear-gradient(180deg, var(--sidebar-bg) 0%, color-mix(in srgb, var(--sidebar-bg) 80%, rgba(0,0,0,0.2)) 100%);
}

[data-theme="light"] {
    --bg-color: color-mix(in srgb, var(--accent-color) 15%, #f2f3f5);
    --sidebar-bg: color-mix(in srgb, var(--accent-color) 60%, #ffffff);
    --card-bg: #ffffff;
    --text-primary: #1a1a1a;
    --text-secondary: #5f6368;
    --border-color: color-mix(in srgb, var(--accent-color) 45%, #dadce0);
    --hover-bg: color-mix(in srgb, var(--accent-color) 35%, #e8eaed);
    --shadow-sm: 0 1px 2px rgba(60,64,67,0.1);
    --shadow-md: 0 4px 6px rgba(60,64,67,0.05);
    --glass-gradient: linear-gradient(145deg, rgba(255,255,255,0.7) 0%, rgba(255,255,255,0.1) 100%);
    --bg-gradient: linear-gradient(135deg, var(--bg-color) 0%, color-mix(in srgb, var(--bg-color) 80%, #ffffff) 100%);
    --sidebar-gradient: linear-gradient(180deg, var(--sidebar-bg) 0%, color-mix(in srgb, var(--sidebar-bg) 80%, rgba(255,255,255,0.5)) 100%);
}

* { box-sizing: border-box; margin: 0; padding: 0; }
body { font-family: 'Noto Sans KR', sans-serif; background-color: var(--bg-color); color: var(--text-primary); line-height: 1.5; overflow: hidden; transition: var(--transition); }
.screen { width: 100vw; height: 100vh; display: flex; transition: opacity 0.3s ease; }
.hidden { display: none !important; }

/* ===== Login ===== */
#login-screen { justify-content: center; align-items: center; background: radial-gradient(circle at center, var(--card-bg) 0%, var(--bg-color) 100%); }
.login-container { background: var(--card-bg); background-image: var(--glass-gradient); backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px); padding: 3.5rem 2.5rem; border-radius: var(--radius-lg); box-shadow: 0 10px 40px rgba(0,0,0,0.5); text-align: center; max-width: 420px; width: 90%; border: 1px solid var(--border-color); position: relative; overflow: hidden; }
.login-container::before { content: ''; position: absolute; top: 0; left: 0; right: 0; height: 5px; background: linear-gradient(90deg, var(--accent-color), color-mix(in srgb, var(--accent-color) 40%, #ffffff)); }
.login-title { font-size: 1.6rem; font-weight: 700; margin-bottom: 0.5rem; color: var(--text-primary); font-family: 'Outfit', sans-serif; }
.login-desc { color: var(--text-secondary); font-size: 0.95rem; margin-bottom: 2.5rem; }
.google-btn { display: flex; align-items: center; justify-content: center; width: 100%; padding: 0.85rem 1.5rem; background-color: #ffffff; color: #3c4043; border: 1px solid #dadce0; border-radius: 8px; font-size: 1rem; font-weight: 500; cursor: pointer; transition: var(--transition); box-shadow: 0 1px 2px 0 rgba(60,64,67,0.3), 0 1px 3px 1px rgba(60,64,67,0.15); }
.google-btn:hover { background-color: #f8f9fa; box-shadow: 0 1px 3px 0 rgba(60,64,67,0.3), 0 4px 8px 3px rgba(60,64,67,0.15); }
.google-icon { width: 20px; height: 20px; margin-right: 12px; }

/* ===== Main Layout ===== */
#main-screen { flex-direction: row; }
.sidebar { width: 260px; background: var(--sidebar-gradient); border-right: 1px solid var(--border-color); display: flex; flex-direction: column; height: 100%; border-top-right-radius: 20px; border-bottom-right-radius: 20px; box-shadow: 4px 0 15px rgba(0,0,0,0.05); z-index: 10; }
.sidebar-header { padding: 1.5rem 1.5rem 2rem 1.5rem; display: flex; align-items: center; }
.sidebar-header h2 { font-size: 1.2rem; font-weight: 700; font-family: 'Outfit', sans-serif; letter-spacing: 0.5px; color: var(--accent-text); text-shadow: 1px 1px 3px rgba(0,0,0,0.4); }
.sidebar-menu { flex: 1; padding: 0 0.8rem; }
.menu-item { display: flex; align-items: center; justify-content: space-between; padding: 0.7rem 1rem; color: var(--accent-text); opacity: 0.8; text-decoration: none; font-size: 0.95rem; font-weight: 500; border-radius: var(--radius-md); margin-bottom: 0.4rem; transition: var(--transition); text-shadow: 1px 1px 2px rgba(0,0,0,0.3); }
.menu-item-inner { display: flex; align-items: center; }
.menu-item svg { margin-right: 12px; transition: color 0.2s; }
.menu-item:hover { background-color: rgba(0,0,0,0.15); opacity: 1; }
.menu-item.active { background-color: rgba(0,0,0,0.25); color: var(--accent-text); opacity: 1; font-weight: 700; }
.menu-item.active svg { color: var(--accent-text); }
.sidebar-footer { padding: 1.5rem; border-top: 1px solid var(--border-color); }
.logout-btn { width: 100%; padding: 0.8rem; background: rgba(255,82,82,0.15); border: 1px solid rgba(255,82,82,0.3); color: #ff5252; cursor: pointer; font-size: 0.95rem; border-radius: var(--radius-md); transition: var(--transition); font-weight: 600; }
.logout-btn:hover { background-color: rgba(255,82,82,0.25); color: #ff3333; }

/* ===== Settings ===== */
.settings-section { max-width: 600px; margin: 0 auto; }
.settings-title { font-size: 1.1rem; font-weight: 500; margin-bottom: 1rem; }
.theme-settings-card { background: var(--card-bg); border-radius: var(--radius-lg); border: 1px solid var(--border-color); padding: 1.5rem; box-shadow: var(--shadow-sm); }
.mode-toggle-group { display: flex; gap: 0.5rem; background: rgba(120,120,120,0.1); padding: 0.3rem; border-radius: 30px; margin-bottom: 2rem; }
.mode-btn { flex: 1; display: flex; justify-content: center; align-items: center; padding: 0.6rem 1rem; border: none; background: transparent; color: var(--text-secondary); border-radius: 25px; cursor: pointer; font-size: 0.9rem; font-weight: 500; transition: var(--transition); }
.mode-btn svg { margin-right: 8px; }
.mode-btn:hover { color: var(--text-primary); }
.mode-btn.active { background: #a8c7fa; color: #062e6f; box-shadow: 0 1px 3px rgba(0,0,0,0.1); }
[data-theme="light"] .mode-btn.active { background: #d3e3fd; color: #041e49; }
.chrome-theme-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(64px, 1fr)); gap: 1.2rem; margin-bottom: 2rem; }
.chrome-theme-circle { width: 64px; height: 64px; border-radius: 50%; border: 3px solid transparent; cursor: pointer; box-shadow: var(--shadow-sm); position: relative; transition: transform 0.2s; outline: 2px solid transparent; outline-offset: 2px; }
.chrome-theme-circle:hover { transform: scale(1.05); }
.chrome-theme-circle.active { border-color: var(--bg-color); outline-color: var(--accent-color); }
.custom-picker-wrapper { overflow: hidden; }
.settings-row { display: flex; justify-content: space-between; align-items: center; padding-top: 1.5rem; border-top: 1px solid var(--border-color); }
.settings-label { font-size: 0.95rem; color: var(--text-primary); }
.toggle-switch { position: relative; display: inline-block; width: 44px; height: 24px; }
.toggle-switch input { opacity: 0; width: 0; height: 0; }
.slider { position: absolute; cursor: pointer; top: 0; left: 0; right: 0; bottom: 0; background-color: var(--border-color); transition: .4s; }
.slider:before { position: absolute; content: ""; height: 18px; width: 18px; left: 3px; bottom: 3px; background-color: white; transition: .4s; }
input:checked + .slider { background-color: var(--accent-color); }
input:checked + .slider:before { transform: translateX(20px); }
.slider.round { border-radius: 24px; }
.slider.round:before { border-radius: 50%; }

/* ===== Content Area ===== */
.content-area { flex: 1; overflow-y: auto; padding: 3rem 4rem; background: var(--bg-gradient); position: relative; }
.view { display: none; max-width: 1000px; margin: 0 auto; min-height: 100%; }
.view.active-view { display: block; animation: slideUp 0.5s cubic-bezier(0.16,1,0.3,1) forwards; }
@keyframes slideUp { from { opacity: 0; transform: translateY(20px); } to { opacity: 1; transform: translateY(0); } }
.content-header { display: flex; justify-content: space-between; align-items: flex-end; margin-bottom: 2.5rem; border-bottom: 1px solid var(--border-color); padding-bottom: 1rem; }
.content-header h1 { font-size: 2.2rem; font-weight: 700; font-family: 'Outfit', 'Noto Sans KR', sans-serif; }

/* ===== Dashboard Cards ===== */
.dashboard-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.5rem; }
.card { background: var(--card-bg); background-image: var(--glass-gradient); border: 1px solid var(--border-color); border-radius: var(--radius-lg); padding: 1.8rem; box-shadow: var(--shadow-sm); transition: var(--transition); }
.card:hover { box-shadow: var(--shadow-md); transform: translateY(-2px); }
.card-small { grid-column: span 1; }
.card h3 { font-size: 0.95rem; color: var(--text-secondary); font-weight: 500; margin-bottom: 1.2rem; display: flex; align-items: center; }
.card h3 svg { margin-right: 8px; color: var(--accent-color); }
.card-value { font-size: 2.2rem; font-weight: 700; font-family: 'Outfit', 'Noto Sans KR', sans-serif; }

/* ===== Common Form ===== */
.form-label { display: block; margin-bottom: .4rem; color: var(--text-secondary); font-size: .85rem; }
.form-input { width: 100%; padding: .7rem; border-radius: var(--radius-md); border: 1px solid var(--border-color); background: var(--bg-color); color: var(--text-primary); font-size: .9rem; font-family: inherit; }
.action-btn { padding: .8rem 1.5rem; border: none; border-radius: var(--radius-md); background: var(--accent-color); color: #fff; font-weight: 600; font-size: .95rem; cursor: pointer; transition: var(--transition); font-family: inherit; }
.action-btn:hover { opacity: .85; transform: translateY(-1px); }

/* ===== Notification Bell ===== */
.notif-area { position: absolute; top: 1.5rem; right: 2rem; z-index: 100; }
.notif-bell { position: relative; cursor: pointer; display: flex; align-items: center; justify-content: center; width: 40px; height: 40px; border-radius: 50%; background: var(--card-bg); border: 1px solid var(--border-color); box-shadow: var(--shadow-sm); transition: var(--transition); }
.notif-bell:hover { background: var(--hover-bg); }
.notif-badge { position: absolute; top: -4px; right: -4px; background: #f28b82; color: #fff; font-size: .7rem; font-weight: 700; width: 18px; height: 18px; border-radius: 50%; display: flex; align-items: center; justify-content: center; }
.notif-dropdown { position: absolute; top: 48px; right: 0; width: 320px; max-height: 400px; overflow-y: auto; background: var(--card-bg); border: 1px solid var(--border-color); border-radius: var(--radius-lg); box-shadow: var(--shadow-md); z-index: 200; }

/* ===== Calendar ===== */
.calendar-container { background: var(--card-bg); border-radius: var(--radius-lg); border: 1px solid var(--border-color); box-shadow: var(--shadow-sm); padding: 1.5rem; margin-top: 2rem; }
.calendar-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 1.5rem; }
.calendar-header h2 { font-size: 1.8rem; font-weight: 700; font-family: 'Outfit', 'Noto Sans KR', sans-serif; }
.calendar-nav-btn { background: transparent; border: none; cursor: pointer; color: var(--text-primary); padding: .5rem; border-radius: 50%; transition: var(--transition); display: flex; align-items: center; justify-content: center; }
.calendar-nav-btn:hover { background: var(--hover-bg); }
.calendar-grid { display: flex; flex-direction: column; border: 1px solid var(--border-color); border-radius: var(--radius-md); overflow: hidden; }
.calendar-days-header { display: grid; grid-template-columns: repeat(7,1fr); background: color-mix(in srgb, var(--bg-color) 50%, transparent); border-bottom: 1px solid var(--border-color); text-align: center; padding: .8rem 0; font-weight: 700; font-size: .9rem; }
.sun { color: #f28b82; }
.sat { color: #8ab4f8; }
.calendar-week { border-bottom: 1px solid var(--border-color); display: flex; flex-direction: column; }
.calendar-week:last-child { border-bottom: none; }
.calendar-cell-row { display: grid; grid-template-columns: repeat(7,1fr); min-height: 80px; }
.calendar-day-cell { border-right: 1px solid var(--border-color); padding: .5rem; display: flex; flex-direction: column; gap: 2px; }
.calendar-day-cell:last-child { border-right: none; }
.calendar-day-num { font-weight: 500; font-size: .95rem; margin-bottom: .2rem; display: inline-block; }
.calendar-day-cell.other-month .calendar-day-num { color: var(--text-secondary); opacity: .5; }
.calendar-day-cell.today .calendar-day-num { background: var(--accent-color); color: #fff; width: 24px; height: 24px; border-radius: 50%; display: flex; align-items: center; justify-content: center; }
.calendar-holiday { font-size: .75rem; color: #f28b82; font-weight: 700; margin-bottom: 2px; }
.calendar-birthday { background: #fce8e6; color: #d93025; font-size: .72rem; padding: 2px 6px; border-radius: 4px; display: inline-block; margin-bottom: 2px; border: 1px solid #fad2cf; }
[data-theme="dark"] .calendar-birthday { background: rgba(217,48,37,0.15); border-color: rgba(217,48,37,0.3); }
.calendar-bars-area { display: flex; flex-direction: column; gap: 2px; padding: 2px 0; }
.calendar-bar-wrapper { position: relative; height: 22px; width: 100%; }
.calendar-project-bar { position: absolute; height: 20px; border-radius: 10px; font-size: .72rem; font-weight: 700; display: flex; align-items: center; padding: 0 10px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; cursor: pointer; box-shadow: 0 1px 3px rgba(0,0,0,0.1); top: 0; justify-content: flex-end; }

/* ===== Popup / Modal ===== */
.popup-overlay { position: fixed; top: 0; left: 0; right: 0; bottom: 0; background: rgba(0,0,0,0.6); z-index: 1000; display: flex; align-items: center; justify-content: center; backdrop-filter: blur(4px); }
.popup-card { background: var(--card-bg); border: 1px solid var(--border-color); border-radius: var(--radius-lg); padding: 2rem; max-width: 600px; width: 90%; box-shadow: 0 20px 60px rgba(0,0,0,0.4); position: relative; max-height: 90vh; overflow-y: auto; }
.popup-close { position: absolute; top: 1rem; right: 1rem; background: none; border: none; color: var(--text-primary); font-size: 1.5rem; cursor: pointer; width: 32px; height: 32px; border-radius: 50%; display: flex; align-items: center; justify-content: center; transition: var(--transition); }
.popup-close:hover { background: var(--hover-bg); }

/* ===== Project Cards ===== */
.proj-card { background: var(--card-bg); border: 1px solid var(--border-color); border-radius: var(--radius-lg); padding: 1.2rem 1.5rem; display: flex; align-items: center; gap: 1.2rem; margin-bottom: 1rem; transition: var(--transition); }
.proj-card:hover { box-shadow: var(--shadow-md); transform: translateY(-2px); }
.proj-card-thumb { width: 60px; height: 60px; border-radius: var(--radius-md); object-fit: cover; border: 1px solid var(--border-color); background: var(--bg-color); flex-shrink: 0; }
.proj-card-info { flex: 1; }
.proj-card-info h4 { font-size: 1.05rem; font-weight: 600; margin-bottom: .3rem; }
.proj-card-info p { font-size: .85rem; color: var(--text-secondary); }
.proj-card-actions { display: flex; gap: .4rem; flex-shrink: 0; }
.proj-status-badge { padding: .25rem .7rem; border-radius: 20px; font-size: .78rem; font-weight: 700; }

/* ===== Searchable Dropdown & Tags ===== */
.dropdown-item { padding: .6rem 1rem; cursor: pointer; transition: var(--transition); font-size: .85rem; }
.dropdown-item:hover { background: var(--hover-bg); }
.assignee-tag { display: inline-flex; align-items: center; gap: 6px; padding: 4px 10px; background: var(--hover-bg); border-radius: 15px; font-size: .8rem; color: var(--text-primary); border: 1px solid var(--border-color); }
.assignee-tag button { background: none; border: none; color: #ff5252; cursor: pointer; font-size: 1rem; line-height: 1; display: flex; align-items: center; }

/* ===== Hover Popup Adjustments ===== */
.popup-overlay.hover-mode { background: transparent; pointer-events: none; backdrop-filter: none; }
.popup-overlay.hover-mode .popup-card { pointer-events: auto; box-shadow: 0 10px 30px rgba(0,0,0,0.3); width: 300px; padding: 1.2rem; }
.popup-overlay.hover-mode .popup-close { display: none; }
.popup-overlay.hover-mode img { width: 60px; height: 60px; }
.popup-overlay.hover-mode h2 { font-size: 1.1rem; }

/* ===== Delete Button ===== */
.btn-delete-small { background: rgba(255,82,82,0.1); color: #ff5252; border: 1px solid rgba(255,82,82,0.3); padding: 4px 8px; border-radius: 6px; font-size: .75rem; cursor: pointer; transition: var(--transition); }
.btn-delete-small:hover { background: rgba(255,82,82,0.2); }

/* ===== Booth Button ===== */
.booth-btn { display: inline-flex; align-items: center; gap: 6px; padding: .4rem .9rem; background: #ff5e5e; color: #fff; border-radius: 8px; font-size: .85rem; font-weight: 700; text-decoration: none; transition: var(--transition); border: 1px solid rgba(255,255,255,0.2); }
.booth-btn:hover { background: #ff4545; transform: scale(1.05); }
.booth-btn svg { width: 16px; height: 16px; }

/* ===== Calendar Leave Bar ===== */
.calendar-leave-bar { height: 18px; border-radius: 4px; font-size: .7rem; font-weight: 600; display: flex; align-items: center; padding: 0 8px; color: #444; background: repeating-linear-gradient(45deg, #e0e0e0, #e0e0e0 10px, #f0f0f0 10px, #f0f0f0 20px); border: 1px solid #ccc; opacity: 0.8; z-index: 5; }
[data-theme="dark"] .calendar-leave-bar { background: repeating-linear-gradient(45deg, #3a3a3a, #3a3a3a 10px, #4a4a4a 10px, #4a4a4a 20px); color: #ccc; border-color: #555; }

/* ===== Leave ===== */
.leave-container { display: grid; grid-template-columns: 1fr 1fr; gap: 1.5rem; margin-top: 1.5rem; }
.leave-form-card, .leave-list-card { background: var(--card-bg); border-radius: var(--radius-lg); border: 1px solid var(--border-color); padding: 1.5rem; box-shadow: var(--shadow-sm); }
.leave-request-item { padding: 1rem; border: 1px solid var(--border-color); border-radius: var(--radius-md); margin-bottom: 1rem; display: flex; flex-direction: column; gap: .5rem; }
.leave-request-header { display: flex; justify-content: space-between; align-items: center; }
.leave-status { padding: .2rem .6rem; border-radius: 12px; font-size: .8rem; font-weight: 700; }
.status-pending { background: rgba(253,203,110,0.2); color: #fdcb6e; }
.status-approved { background: rgba(129,201,149,0.2); color: #81c995; }
.status-rejected { background: rgba(242,139,130,0.2); color: #f28b82; }
.leave-admin-actions { display: flex; gap: .5rem; margin-top: .5rem; }
.btn-approve { background: #81c995; color: #fff; border: none; padding: .4rem .8rem; border-radius: var(--radius-md); cursor: pointer; font-weight: 600; }
.btn-approve:hover { background: #6bb585; }
.btn-reject { background: #f28b82; color: #fff; border: none; padding: .4rem .8rem; border-radius: var(--radius-md); cursor: pointer; font-weight: 600; }
.btn-reject:hover { background: #e07b73; }