@font-face {
  font-family: "Material Icons";
  font-style: normal;
  font-weight: 400;
  font-display: block;
  src: url(0c35d18bf06992036b69.woff2) format("woff2"), url(4d73cb90e394b34b7670.woff) format("woff");
}
.material-icons {
  font-family: "Material Icons";
  font-weight: normal;
  font-style: normal;
  font-size: 24px;
  line-height: 1;
  letter-spacing: normal;
  text-transform: none;
  display: inline-block;
  white-space: nowrap;
  word-wrap: normal;
  direction: ltr;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  font-feature-settings: "liga";
}

@font-face {
  font-family: "Material Icons Outlined";
  font-style: normal;
  font-weight: 400;
  font-display: block;
  src: url(6f420cf17cc0d7676fad.woff2) format("woff2"), url(f882956fd323fd322f31.woff) format("woff");
}
.material-icons-outlined {
  font-family: "Material Icons Outlined";
  font-weight: normal;
  font-style: normal;
  font-size: 24px;
  line-height: 1;
  letter-spacing: normal;
  text-transform: none;
  display: inline-block;
  white-space: nowrap;
  word-wrap: normal;
  direction: ltr;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  font-feature-settings: "liga";
}

@font-face {
  font-family: "Material Icons Round";
  font-style: normal;
  font-weight: 400;
  font-display: block;
  src: url(c380809fd3677d7d6903.woff2) format("woff2"), url(5d681e2edae8c60630db.woff) format("woff");
}
.material-icons-round {
  font-family: "Material Icons Round";
  font-weight: normal;
  font-style: normal;
  font-size: 24px;
  line-height: 1;
  letter-spacing: normal;
  text-transform: none;
  display: inline-block;
  white-space: nowrap;
  word-wrap: normal;
  direction: ltr;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  font-feature-settings: "liga";
}

@font-face {
  font-family: "Material Icons Sharp";
  font-style: normal;
  font-weight: 400;
  font-display: block;
  src: url(219aa9140e099e6c72ed.woff2) format("woff2"), url(3a4004a46a653d4b2166.woff) format("woff");
}
.material-icons-sharp {
  font-family: "Material Icons Sharp";
  font-weight: normal;
  font-style: normal;
  font-size: 24px;
  line-height: 1;
  letter-spacing: normal;
  text-transform: none;
  display: inline-block;
  white-space: nowrap;
  word-wrap: normal;
  direction: ltr;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  font-feature-settings: "liga";
}

@font-face {
  font-family: "Material Icons Two Tone";
  font-style: normal;
  font-weight: 400;
  font-display: block;
  src: url(4ef4218c522f1eb6b5b1.woff2) format("woff2"), url(3baa5b8f3469222b822d.woff) format("woff");
}
.material-icons-two-tone {
  font-family: "Material Icons Two Tone";
  font-weight: normal;
  font-style: normal;
  font-size: 24px;
  line-height: 1;
  letter-spacing: normal;
  text-transform: none;
  display: inline-block;
  white-space: nowrap;
  word-wrap: normal;
  direction: ltr;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  font-feature-settings: "liga";
}

:root {
    /* Light Mode (Soft Minimalist / GDA-inspired) */
    --bg-main: #ffffff;
    --bg-sidebar: #f4f7f6;
    --bg-card: #ffffff;
    --text-main: #2d3436;
    --text-muted: #636e72;
    --accent: #dbeafe;
    --accent-hover: #4a6e8a;
    --border: #e1e8ed;
    --bg-sidebar-hover: #dbeafe;
    --accent-bright: #00aaff;

    /* Priority Colors */
    --priority-high: #ff7675;
    --priority-med: #fab1a0;
    --priority-low: #55efc4;

    /* Shadows & Radius */
    --shadow: 0 0.2rem 0.5rem rgba(0,0,0,0.05);
    --radius: 0.8rem;
    --transition: all 0.3s ease;
}

/* 2. Dark Mode Override */
[data-theme='dark'] {
    --bg-main: #121212;
    --bg-sidebar: #1e1e1e;
    --bg-card: #252525;
    --text-main: #e0e0e0;
    --text-muted: #b0b0b0;
    --accent: #00aaff;
    --border: #333333;
    --shadow: 0 0.4rem 1rem rgba(0,0,0,0.3);
    --bg-sidebar-hover: #353b3d;
}

*, *:before, *:after {
    box-sizing: inherit;
    margin: 0;
}

html {
    box-sizing: border-box;
    font-size: 62.5%;
}

body {
    background-color: var(--bg-main);
    color: var(--text-main);
    font-family: 'League Spartan', sans-serif;
    font-size: clamp(1.4rem, 1.2vw + 1rem, 1.6rem);
    line-height: 1.5;
    transition: var(--transition);
}

button * {
    pointer-events: none;
}

.preload * {
    -webkit-transition: none !important;
    -moz-transition: none !important;
    -ms-transition: none !important;
    -o-transition: none !important;
    transition: none !important;
}

#main-container {
    display: flex;
    flex-direction: column;
    min-height: 100dvh;
}

#sidebar {
    position: fixed; /* Sidebar overlays content on mobile */
    top: 0;
    left: 0;
    bottom: 0;
    width: 100%;
    background-color: var(--bg-sidebar);
    z-index: 1000;
    transform: translateX(-100%); /* Hidden by default */
    transition: transform 0.3s ease;
    display: flex;
    flex-direction: column;
    padding: 0 2.5rem 1.5rem;
    height: 100dvh; 
    overflow-y: auto;
    overscroll-behavior: contain; 
}

#sidebar-main {
    /* This creates the gap for the Close button on mobile 
       but disappears on desktop. */
    margin-top: clamp(4rem, 8vh, 5rem);
}


#close-sidebar {
    position: absolute;
    top: 1rem;
    right: 1rem;
    background: none;
    border: none;
    color: var(--text-muted);
    font-size: 2.8rem; /* Large enough for a thumb tap */
    cursor: pointer;
    padding: 0.5rem;
}

#sidebar.active {
    transform: translateX(0);
    box-shadow: 0.5rem 0 1.5rem rgba(0,0,0,0.1);
}

.sidebar-options {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    margin-top: auto;
}

#title {
    display: flex;
    align-items: center; 
    gap: 1rem;
    font-size: 2.4rem;
    font-weight: 700;
    color: var(--text-main);
    margin: 0.8rem;
}

#title .material-icons {
    font-size: 2.8rem;
    display: flex;
    align-items: center;
}

#header {
    height: 7rem;
    padding: 0 2rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    background-color: var(--bg-main);
    border-bottom: 0.1rem solid var(--border);
}

.header-left {
    display: flex;
    align-items: center;
}

#menu-toggle {
    display: block; 
    margin: 1rem;
    background-color: transparent;
    border: none;
    outline: none;
    font-size: 2.5rem;
    color: var(--text-main);
}

#content {
    flex: 1;
    padding: 3rem 0; 
    display: flex;
    flex-direction: column;
    align-items: center; 
    overflow-y: auto;
}

/* DESKTOP ADAPTATIONS (768px and up) */
@media (min-width: 768px) {
    #main-container {
        display: grid;
        grid-template-columns: 26rem 1fr;
        grid-template-rows: auto 1fr;
        grid-template-areas: 
            "side header"
            "side content"
            "side content"; 
    }

    #sidebar {
        position: static; /* Back into the grid flow */
        transform: translateX(0); /* Always visible */
        grid-area: side;
        width: auto;
        padding: 2rem;
    }

    #sidebar-main {
        margin-top: 2.5rem; /* Much smaller gap on desktop */
    }

    #close-sidebar {
        display: none;
    }

    #header {
        grid-area: header;
        padding: 0 4rem;
    }

    #content {
        grid-area: content;
    }

    .todo-row, #new-todo-row, .empty-msg {
        width: 100%;
        max-width: 80rem;
    }

    #menu-toggle, #toggle-completed, #theme-toggle {
        display: none; /* Hide hamburger on desktop */
    }
}
/* Sidebar buttons */

.sidebar-container button {
    width: 100%;
    background-color: rgba(0, 0, 0, 0.04);
    border: none;
    margin-bottom: 8px;
    padding: clamp(0.8rem, 1.5vh, 1rem) 2rem;
    text-align: left;
    color: var(--text-main);
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 1.2rem;
    transition: background-color 0.2s ease;
}

.sidebar-container button .material-icons {
    font-size: 2rem;
    color: var(--accent-bright);
    opacity: 0.8;
}

.sidebar-container h3 {
    margin-top: 2rem; 
}

#sidebar button:active {
    background-color: var(--bg-sidebar-hover);
    border-color: var(--border);
} 

.sidebar-container button:hover {
    background-color: var(--bg-sidebar-hover);
}

/* Sidebar toggle switches */ 

.toggle-container {
    display: flex;
    align-items: center;
    font-size: 1.4rem;
}

.switch {
  position: relative;
  display: inline-block;
  margin: 1rem 0.5rem;
  width: 4.5rem;
  height: 2.5rem;
}

.switch input {
  opacity: 0;
  width: 0;
  height: 0;
}

.slider {
  position: absolute;
  cursor: pointer;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  border-radius: 34px;
  background-color: #ccc;
  transition: .2s;
}

.slider:before {
  position: absolute;
  content: "";
  height: 1.9rem;
  width: 1.9rem;
  left: 0.3rem;
  bottom: 0.3rem;
  border-radius: 50%;
  background-color: white;
  transition: .2s;
}

input:checked + .slider {
  background-color: var(--accent-bright);
}

input:focus + .slider {
  box-shadow: 0 0 1px var(--accent-bright);
}

input:checked + .slider:before {
  transform: translateX(2rem);
}

/* Sidebar footer */

#side-footer {
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1.2rem;
    border-top: 2px solid var(--border);
}

.footer-links {
    font-size: 1.5rem;
    color: var(--text-muted);
}

.footer-links a {
    color: var(--text-muted);
    text-decoration: none;
    transition: color 0.2s;
}

.footer-links a:hover {
    color: var(--accent-bright);
    text-decoration: underline;
}

.separator {
    margin: 0 0.5rem;
    opacity: 0.5;
}

#reset {
    background-color: var(--priority-high);
    border: 1px solid var(--priority-high);
    color: white;
    padding: clamp(1rem, 2vh, 1.2rem) 2rem;
    border-radius: var(--radius);
    cursor: pointer;
    font-size: 1.4rem;
    font-weight: 700;
    transition: var(--transition);
}

#reset:hover {
    background: none;
    color: var(--priority-high);
}

/* Modals & forms */

dialog {
    margin: 20px auto;
    padding: 2rem;
    border: none;
    border-radius: 12px;
    box-shadow: var(--shadow);
    background-color: var(--bg-sidebar);
    color: var(--text-main);
}


dialog::backdrop {
    background-color: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(3px);
}

#add-modal, #edit-modal {
    background-color: var(--bg-sidebar);
    color: var(--text-main);
    border: none;
    border-radius: var(--radius);
    padding: 30px;
    width: 90%;
    max-width: 400px;
    position: relative;
}

form h3 {
    margin-bottom: 2rem;
    font-size: clamp(1.8rem, 2vw, 2.2rem);
    color: var(--text-main);
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    margin-bottom: 1.5rem;
}

.form-group label {
    font-size: 1.2rem;
    font-weight: 700;
    text-transform: uppercase;
    color: var(--text-muted);
}

.form-group input,
.form-group select {
    padding: 10px;
    border: 1px solid var(--border);
    border-radius: 4px;
    background-color: var(--bg-main);
    color: var(--text-main);
    font-family: inherit;
    font-size: 1.6rem;
    transition: border-color 0.2s;
}

.form-group input:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--accent-bright);
}

#add-form button[type="submit"],
#edit-form button[type="submit"] {
    width: 100%;
    background-color: #00aaff;
    color: white;
    padding: 1.2rem;
    border: none;
    border-radius: var(--radius);
    font-weight: 700;
    font-size: 1.6rem;
    cursor: pointer;
    margin-top: 1rem;
}

.close-btn {
    position: absolute;
    top: 10px;
    right: 10px;
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    font-weight: 700;
}

/* Main content */

#current-view {
    padding-bottom: 3rem;
}

.todo-item {
    background-color: var(--bg-card);
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    padding: 1.2rem 2rem;
    gap: 1.5rem;
}

.todo-item.completed {
    opacity: 0.5;
    text-decoration: line-through;
}

#content {
    padding: clamp(2rem, 4vh, 4rem) clamp(2rem, 5vw, 4rem);
    display: flex;
    flex-direction: column;
}

.todo-row {
    display: grid;
    grid-template-columns: 3rem 1fr auto;
    grid-template-rows: auto auto;
    align-items: center;
    column-gap: 1rem;
    padding: 1.2rem 1rem;
    background-color: var(--bg-card);
    border-bottom: 1px solid var(--border);
    transition: var(--transition);
    width: 100%;
}

.delete-row-btn {
    grid-column: 3;
    grid-row: 1 / span 2; /* Centered vertically on the right */
}

#content .todo-row:nth-of-type(1) {
    border-top: 1px solid var(--border);
}

.todo-row:hover {
    background-color: rgba(93, 138, 168, 0.03);
}

/* Priority Indicators */
.todo-row.prio-high { border-left-color: var(--priority-high); }
.todo-row.prio-medium { border-left-color: var(--priority-med); }
.todo-row.prio-low { border-left-color: var(--priority-low); }

.todo-row input[type="checkbox"] {
    grid-column: 1;
    grid-row: 1 / span 2; /* Span both rows to stay centered next to the text */
    cursor: pointer;
    accent-color: var(--accent-bright);
    width: 1.8rem;
    height: 1.8rem;
    padding-left: 1.2rem;
}

.task-title {
    grid-column: 2;
    grid-row: 1;
    font-size: 1.6rem;
    font-weight: 500;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
.task-date {
    grid-column: 2;
    grid-row: 2;
    text-align: left; /* Aligns under the start of the title */
    font-size: 1.2rem;
    color: var(--text-muted);
    margin-top: 0.2rem;
}

/* Action Buttons */
.details-btn, 
.delete-row-btn {
    background: none;
    border: none;
    cursor: pointer;
    color: var(--text-muted);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0.5rem;
    border-radius: 0.4rem;
    transition: var(--transition);
}
.details-btn {
    display: none;
}

.details-btn:hover { color: var(--accent-bright); }
.delete-row-btn:hover .material-icons { 
    color: var(--priority-high);
}

.add-task-inline {
    background: none;
    border: 1px dashed;
    color: var(--text-muted);
    width: fit-content;
    padding: 1.2rem 2rem;
    margin-top: 1rem;
    border-radius: var(--radius);
    cursor: pointer;
    font-family: inherit;
    font-size: 1.4rem;
    text-align: left;
}

.add-task-inline:hover {
    color: #00aaff;
    background-color: rgba(93, 138, 168, 0.05);
}

.completed {
    text-decoration: line-through;
    opacity: 0.6;
}

.empty-msg {
    color: var(--text-muted);
    text-align: center;
    padding: 4rem;
    font-style: italic;
    font-size: 1.6rem;
}

/* Desktop adaptations */

@media (min-width: 768px) {
    .sidebar-container button { 
        margin-bottom: 4px; 
    }
    .switch {
        width: 3.5rem; /* Slightly smaller for desktop precision */
        height: 2rem;
    }
    .slider:before {
        height: 1.4rem;
        width: 1.4rem;
    }
    input:checked + .slider:before {
        transform: translateX(1.5rem);
    }
    dialog { 
        margin: auto; 
    }
    .details-btn {
        display: flex;
    }
    .todo-row {
        display: flex; /* Switch back to flex for the horizontal desktop look */
        padding: 1rem 1.5rem;
        
    }
    .task-date {
        margin-top: 0;
        text-align: right;
        min-width: 10rem;
    }
    .task-title {
        flex-grow: 1;
    }
    #reset {
        width: auto; /* Shrinks back to fit content on desktop */
        padding: 0.5rem 1.5rem;
        font-size: 1.1rem;
    }
}