/* Base Reset and Global Styles */
:root {
    /* Dark Blue palette */
    --primary-color: #1e3a5f; /* dark blue */
    --accent-color: #4a9fd8;  /* light blue */
    --secondary-color: #2d5a8c; /* medium blue */
    --success-color: #4ade80; /* green */
    --warning-color: #fbbf24; /* amber */
    --danger-color: #f87171; /* red */
    --bg-color: #0f172a; /* very dark blue */
    --card-bg: #1a2947; /* dark blue card */
    --text-color: #f1f5f9; /* light text */
    --muted: #94a3b8;
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    text-decoration: none;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: var(--bg-color);
    color: var(--text-color);
    line-height: 1.6;
}

.container {
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px 0;
}

/* --- Header/Navbar --- */
.navbar {
    background-color: var(--primary-color);
    color: white;
    padding: 10px 0;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 20px;
}

.navbar h1 {
    font-size: 1.5em;
}

.navbar nav a {
    color: white;
    text-decoration: none;
    margin-left: 15px;
    padding: 5px 10px;
    border-radius: 4px;
    transition: background-color 0.3s;
}

.navbar nav a:hover {
    background-color: rgba(255, 255, 255, 0.1);
}

/* --- Buttons --- */
.button {
    padding: 8px 15px;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    text-decoration: none;
    display: inline-block;
    font-weight: bold;
    text-align: center;
}

.button.primary { background-color: var(--primary-color); color: white; }
.button.primary:hover { background-color: #0056b3; }

.button.success { background-color: var(--success-color); color: white; }
.button.success:hover { background-color: #1e7e34; }

.button.danger { background-color: var(--danger-color); color: white; }
.button.danger:hover { background-color: #bd2130; }

.button.warning { background-color: var(--warning-color); color: var(--text-color); }
.button.warning:hover { background-color: #e0a800; }

/* --- Forms --- */
.form-container {
    max-width: 500px;
    margin-top: 50px;
    background: var(--card-bg);
    padding: 30px;
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
}

label {
    display: block;
    margin-bottom: 5px;
    font-weight: bold;
    margin-top: 10px;
}

input[type="text"],
input[type="password"],
input[type="date"],
select,
textarea {
    width: 100%;
    padding: 10px;
    margin-bottom: 15px;
    border: 1px solid #2d5a8c;
    border-radius: 4px;
    font-size: 1em;
    background-color: #0f172a;
    color: #f1f5f9;
}

textarea {
    resize: vertical;
}

/* --- Task List/Dashboard --- */
.task-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 20px;
    margin-top: 20px;
}

.task-card {
    background: var(--card-bg);
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
    border-left: 6px solid rgba(124,58,237,0.9);
    transition: transform 0.2s;
}

.task-card:hover {
    transform: translateY(-3px);
}

.task-card.selesai {
    border-left: 6px solid var(--success-color);
    opacity: 0.8;
}

.task-card.urgent {
    border-left: 6px solid var(--danger-color);
    animation: pulse 1.5s infinite;
}

@keyframes pulse {
    0% { box-shadow: 0 0 0 0 rgba(220, 53, 69, 0.4); }
    70% { box-shadow: 0 0 0 10px rgba(220, 53, 69, 0); }
    100% { box-shadow: 0 0 0 0 rgba(220, 53, 69, 0); }
}


.task-card h3 {
    margin-bottom: 5px;
    font-size: 1.25em;
}

.task-card p {
    font-size: 0.9em;
    color: var(--secondary-color);
    margin-bottom: 10px;
}

.task-actions {
    margin-top: 15px;
    display: flex;
    gap: 10px;
}



/* --- Messages --- */
.message {
    padding: 10px;
    border-radius: 4px;
    margin-bottom: 15px;
    font-weight: bold;
}

.message.success { background-color: rgba(74,222,128,0.15); color: #4ade80; border: 1px solid rgba(74,222,128,0.3); }
.message.error { background-color: rgba(248,113,113,0.15); color: #f87171; border: 1px solid rgba(248,113,113,0.3); }
.message.warning { background-color: rgba(251,191,36,0.15); color: #fbbf24; border: 1px solid rgba(251,191,36,0.3); }


/* --- Task Detail --- */
.detail-card {
    background: var(--card-bg);
    padding: 30px;
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(10,16,23,0.3);
}

.detail-card h2 {
    color: var(--accent-color);
    margin-bottom: 10px;
}

.detail-card p strong {
    display: inline-block;
    width: 150px;
    color: #f1f5f9;
}

/* --- Responsive Adjustments (Mobile First) --- */
@media (max-width: 600px) {
    .navbar .container {
        flex-direction: row;
        text-align: center;
    }

    .navbar nav {
        margin-top: 10px;
        display: flex;
        flex-direction: row;
        gap: 5px;
    }

    .navbar nav a {
        margin: 0;
        display: block;
    }
    
    .container {
        width: 95%;
        padding: 10px 0;
    }

    .form-container {
        margin-top: 20px;
        padding: 20px;
    }
    .task-actions {
        display: flex;
        flex-direction: row;
    }
    .tab-nav {
        margin: 0 auto;
    }

}

/* --- New Modern Header / Footer / Utilities --- */
.site-header {
    background: var(--primary-color);
    color: #f1f5f9;
    box-shadow: 0 6px 18px rgba(10,16,23,0.4);
}
.site-header .header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    padding: 12px 20px;
}
.site-brand {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    color: #fff;
    text-decoration: none;
}
.site-logo { 
    border-radius: 6px;
    background: rgba(255,255,255,0.1);
    padding: 4px;
}
.brand-title { color: #fff; }
.brand-title {
    font-weight: 700;
    font-size: 1.1rem;
}
.main-nav a { margin-left: 10px; }

.app-container {
    padding-top: 26px;
    padding-bottom: 40px;
}

.site-footer {
    background: #072233;
    color: rgba(255,255,255,0.95);
    margin-top: 40px;
    padding: 18px 0;
}
.site-footer .footer-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
}
.footer-logo {
    margin-right: 8px;
    vertical-align: middle;
}
.site-footer a { color: rgba(255,255,255,0.75); text-decoration: none; }
.site-footer a:hover { color: #fff; }

/* Button variants */
.button.ghost {
    background: transparent;
    border: 1px solid rgba(74,159,216,0.3);
    color: #4a9fd8;
}
.button.primary { background-color: var(--accent-color); color: #0f172a; }
.button.primary:hover { filter: brightness(0.95); }
.button.success { background-color: var(--success-color); color: #0f172a; }
.button.warning { background-color: var(--warning-color); color: #0f172a; }
.button.danger { background-color: var(--danger-color); color: #f1f5f9; }

/* --- Colorful badges and task tags --- */
.badge {
    display: inline-block;
    padding: 4px 8px;
    border-radius: 999px;
    font-size: 0.75rem;
    font-weight: 600;
    color: #fff;
}
.badge.purple { background: linear-gradient(90deg, #4a9fd8, #5ba3dd); color: #f1f5f9; }
.badge.cyan { background: linear-gradient(90deg, #4a9fd8, #5ba3dd); color: #f1f5f9; }
.badge.orange { background: linear-gradient(90deg, #f59e0b, #fbbf24); color: #0f172a; }
.badge.green { background: linear-gradient(90deg, #4ade80, #86efac); color: #0f172a; }
.badge.pink { background: linear-gradient(90deg, #f87171, #fb7185); color: #f1f5f9; }

/* Task-card variants for quick glance */
.task-card.variant-purple { border-left-color: #4a9fd8; }
.task-card.variant-cyan { border-left-color: #5ba3dd; }
.task-card.variant-orange { border-left-color: #f59e0b; }
.task-card.variant-pink { border-left-color: #f87171; }

/* Slight lift and accent shadow */
.task-card:hover { box-shadow: 0 10px 30px rgba(15,23,42,0.08); transform: translateY(-6px); }

/* Muted text utility */
.muted { color: var(--muted); }

/* Utility helpers */
.text-center { text-align: center; }
.muted { color: var(--secondary-color); }

@media (max-width: 700px) {
    .site-header .header-inner { flex-direction: column; align-items: flex-start; }
    .main-nav { width: 100%; display: flex; gap: 8px; flex-wrap: wrap; }
    .site-footer .footer-inner { flex-direction: column; align-items: center; gap: 8px; text-align: center; }
}

/* Auth pages */
.auth-header { padding: 18px 0; text-align: center; background: var(--primary-color); }
.auth-header .site-brand { display: inline-flex; align-items: center; gap: 10px; text-decoration: none; }
.auth-header .brand-title { font-size: 1.25rem; color: #f1f5f9; font-weight: 700; }
.auth-page { display: flex; align-items: center; justify-content: center; min-height: calc(100vh - 140px); padding: 20px 0; background: var(--bg-color); }
.form-container { max-width: 460px; width: 100%; background: var(--card-bg); padding: 28px; border-radius: 12px; box-shadow: 0 10px 30px rgba(10,16,23,0.4); border: 1px solid rgba(74,159,216,0.2); }
.form-container h2 { color: #f1f5f9; margin-bottom: 8px; }
.form-container p { color: var(--muted); }
.message.success { background-color: rgba(74,222,128,0.15); color: #4ade80; border: 1px solid rgba(74,222,128,0.3); }
.message.error { background-color: rgba(248,113,113,0.15); color: #f87171; border: 1px solid rgba(248,113,113,0.3); }

/* Password field with toggle */
.password-field { 
    position: relative; 
    display: flex;
    align-items: center;
}
.password-field input { 
    padding-right: 44px; 
    flex: 1;
}
.toggle-password {
    position: absolute;
    right: 10px;
    border: none;
    background: transparent;
    cursor: pointer;
    font-size: 1.2rem;
    line-height: 1;
    padding: 4px 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    user-select: none;
    -webkit-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
}
.toggle-password:hover { 
    opacity: 0.8;
}
.toggle-password:active { 
    opacity: 0.6;
}
.toggle-password:focus { 
    outline: 2px solid #4a9fd8; 
    border-radius: 4px; 
    outline-offset: 2px;
}

/* ... (Gaya CSS sebelumnya) ... */

/* --- Navigasi Tab BARU --- */
.tab-nav {
    margin: 20px 0;
    border-bottom: 2px solid #2d5a8c;
    padding-bottom: 5px;
    display: flex;
    gap: 10px;
}

.tab-nav button {
    /* Gaya tombol sudah ada di atas */
    transition: background-color 0.3s;
}

/* --- Kalender Styling BARU --- */
#calendar {
    max-width: 100%;
    margin-top: 20px;
    padding: 15px;
    background: var(--card-bg);
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(10,16,23,0.3);
}

/* ... (Gaya CSS sebelumnya) ... */

/* --- Navigasi Tab BARU (Duplikat Dihapus) --- */

/* Ensure FullCalendar is responsive */
.fc .fc-toolbar {
    flex-wrap: wrap; 
}