/* ==========================================
   RESET
========================================== */

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


/* ==========================================
   VARIÁVEIS
========================================== */

:root {

    --bg: #080b12;

    --card: rgba(18, 23, 35, 0.78);

    --card-solid: #121723;

    --border: rgba(255, 255, 255, 0.08);

    --text: #f5f7fb;

    --text-secondary: #9ca7b8;

    --primary: #6d5dfc;

    --primary-hover: #5a4bea;

    --success: #22c55e;

    --warning: #f59e0b;

    --danger: #ef4444;

    --input: rgba(255, 255, 255, 0.05);

    --shadow:
        0 25px 80px rgba(0, 0, 0, 0.35);

}


/* ==========================================
   LIGHT THEME
========================================== */

.light-theme {

    --bg: #eef1f7;

    --card: rgba(255, 255, 255, 0.82);

    --card-solid: #ffffff;

    --border: rgba(15, 23, 42, 0.08);

    --text: #151923;

    --text-secondary: #667085;

    --input: rgba(15, 23, 42, 0.05);

    --shadow:
        0 25px 70px rgba(15, 23, 42, 0.12);

}


/* ==========================================
   BODY
========================================== */

body {

    min-height: 100vh;

    padding: 40px 20px;

    font-family: "Inter", sans-serif;

    color: var(--text);

    background:
        radial-gradient(
            circle at 15% 15%,
            rgba(109, 93, 252, 0.18),
            transparent 30%
        ),
        radial-gradient(
            circle at 85% 80%,
            rgba(34, 197, 94, 0.08),
            transparent 25%
        ),
        var(--bg);

    transition:
        background 0.3s ease,
        color 0.3s ease;

}


/* ==========================================
   BACKGROUND DECORATION
========================================== */

.background-decoration {

    position: fixed;

    width: 350px;

    height: 350px;

    border-radius: 50%;

    filter: blur(100px);

    opacity: 0.2;

    pointer-events: none;

    z-index: -1;

}


.decoration-one {

    top: -150px;

    left: -150px;

    background: #6d5dfc;

}


.decoration-two {

    right: -150px;

    bottom: -150px;

    background: #22c55e;

}


/* ==========================================
   MAIN CONTAINER
========================================== */

.todo-container {

    width: min(100%, 950px);

    margin: auto;

    padding: 30px;

    background: var(--card);

    border: 1px solid var(--border);

    border-radius: 28px;

    box-shadow: var(--shadow);

    backdrop-filter: blur(25px);

}


/* ==========================================
   HEADER
========================================== */

.app-header {

    display: flex;

    align-items: center;

    justify-content: space-between;

    margin-bottom: 30px;

}


.brand {

    display: flex;

    align-items: center;

    gap: 14px;

}


.brand-icon {

    width: 48px;

    height: 48px;

    display: grid;

    place-items: center;

    border-radius: 14px;

    background:
        linear-gradient(
            135deg,
            var(--primary),
            #8b7cff
        );

    color: white;

    font-size: 20px;

    box-shadow:
        0 10px 30px
        rgba(
            109,
            93,
            252,
            0.3
        );

}


.brand h1 {

    font-size: 24px;

    font-weight: 800;

    letter-spacing: -0.5px;

}


.brand p {

    margin-top: 3px;

    color: var(--text-secondary);

    font-size: 12px;

}


/* ==========================================
   THEME BUTTON
========================================== */

.icon-button {

    width: 44px;

    height: 44px;

    border: 1px solid var(--border);

    border-radius: 12px;

    background: var(--input);

    color: var(--text);

    cursor: pointer;

    transition: 0.2s;

}


.icon-button:hover {

    transform: translateY(-2px);

    border-color: var(--primary);

    color: var(--primary);

}


/* ==========================================
   DASHBOARD
========================================== */

.dashboard {

    display: grid;

    grid-template-columns:
        repeat(4, 1fr);

    gap: 14px;

    margin-bottom: 18px;

}


.stat-card {

    display: flex;

    align-items: center;

    gap: 12px;

    padding: 18px;

    border: 1px solid var(--border);

    border-radius: 18px;

    background: var(--input);

}


.stat-icon {

    width: 40px;

    height: 40px;

    display: grid;

    place-items: center;

    border-radius: 12px;

    background:
        rgba(
            109,
            93,
            252,
            0.14
        );

    color: var(--primary);

}


.stat-icon.success {

    background:
        rgba(
            34,
            197,
            94,
            0.12
        );

    color: var(--success);

}


.stat-icon.warning {

    background:
        rgba(
            245,
            158,
            11,
            0.12
        );

    color: var(--warning);

}


.stat-icon.danger {

    background:
        rgba(
            239,
            68,
            68,
            0.12
        );

    color: var(--danger);

}


.stat-label {

    display: block;

    margin-bottom: 3px;

    color: var(--text-secondary);

    font-size: 11px;

}


.stat-card strong {

    font-size: 22px;

}


/* ==========================================
   PRODUCTIVITY
========================================== */

.productivity-card {

    padding: 20px;

    margin-bottom: 25px;

    border: 1px solid var(--border);

    border-radius: 20px;

    background: var(--input);

}


.productivity-header {

    display: flex;

    align-items: center;

    justify-content: space-between;

    margin-bottom: 15px;

}


.productivity-header span {

    color: var(--text-secondary);

    font-size: 12px;

}


.productivity-header h2 {

    margin-top: 3px;

    font-size: 25px;

}


.productivity-header > i {

    color: var(--primary);

    font-size: 25px;

}


.progress-bar {

    width: 100%;

    height: 8px;

    overflow: hidden;

    border-radius: 20px;

    background:
        rgba(
            255,
            255,
            255,
            0.07
        );

}


.progress-fill {

    width: 0;

    height: 100%;

    border-radius: inherit;

    background:
        linear-gradient(
            90deg,
            var(--primary),
            #9b8fff
        );

    transition:
        width 0.5s ease;

}


.productivity-card p {

    margin-top: 10px;

    color: var(--text-secondary);

    font-size: 12px;

}


/* ==========================================
   FORM
========================================== */

#todo-form {

    display: flex;

    flex-direction: column;

    gap: 12px;

    margin-bottom: 20px;

}


.input-main {

    position: relative;

}


.input-main > i {

    position: absolute;

    top: 50%;

    left: 16px;

    transform: translateY(-50%);

    color: var(--text-secondary);

    pointer-events: none;

}


input,
select {

    width: 100%;

    height: 48px;

    padding: 0 14px;

    outline: none;

    border: 1px solid var(--border);

    border-radius: 12px;

    background: var(--input);

    color: var(--text);

    font-family: inherit;

    transition: 0.2s;

}


.input-main input {

    padding-left: 45px;

}


input:focus,
select:focus {

    border-color: var(--primary);

    box-shadow:
        0 0 0 3px
        rgba(
            109,
            93,
            252,
            0.1
        );

}


select option {

    background: var(--card-solid);

    color: var(--text);

}


/* ==========================================
   SELECT WRAPPER
========================================== */

.select-wrapper {

    position: relative;

}


.select-wrapper > i {

    position: absolute;

    top: 50%;

    left: 14px;

    transform: translateY(-50%);

    color: var(--text-secondary);

    font-size: 13px;

    pointer-events: none;

    z-index: 2;

}


.select-wrapper select {

    padding-left: 38px;

}


.select-wrapper input {

    padding-left: 38px;

}


/* ==========================================
   TASK OPTIONS
========================================== */

.task-options {

    display: grid;

    grid-template-columns:
        repeat(3, 1fr);

    gap: 10px;

}


/* ==========================================
   BUTTONS
========================================== */

.primary-button {

    height: 48px;

    border: none;

    border-radius: 12px;

    background:
        linear-gradient(
            135deg,
            var(--primary),
            #8577ff
        );

    color: white;

    font-family: inherit;

    font-weight: 700;

    cursor: pointer;

    transition: 0.2s;

}


.primary-button:hover {

    transform: translateY(-2px);

    box-shadow:
        0 10px 25px
        rgba(
            109,
            93,
            252,
            0.25
        );

}


.secondary-button {

    height: 48px;

    border: 1px solid var(--border);

    border-radius: 12px;

    background: var(--input);

    color: var(--text);

    font-family: inherit;

    font-weight: 600;

    cursor: pointer;

}


/* ==========================================
   EDIT FORM
========================================== */

.edit-form {

    padding: 20px;

    margin-bottom: 20px;

    border: 1px solid
        rgba(
            109,
            93,
            252,
            0.25
        );

    border-radius: 18px;

    background:
        rgba(
            109,
            93,
            252,
            0.06
        );

}


.edit-header {

    display: flex;

    align-items: center;

    justify-content: space-between;

    margin-bottom: 15px;

}


.edit-header span {

    color: var(--text-secondary);

    font-size: 11px;

}


.edit-header h2 {

    margin-top: 3px;

    font-size: 18px;

}


.edit-header > i {

    color: var(--primary);

}


.edit-form > .input-main {

    margin-bottom: 10px;

}


.edit-actions {

    display: grid;

    grid-template-columns:
        1fr 150px;

    gap: 10px;

    margin-top: 10px;

}


/* ==========================================
   TOOLBAR
========================================== */

.toolbar {

    display: grid;

    grid-template-columns:
        1fr 160px;

    gap: 10px;

    margin-bottom: 10px;

}


.search-container {

    position: relative;

}


.search-container > i {

    position: absolute;

    top: 50%;

    left: 15px;

    transform: translateY(-50%);

    color: var(--text-secondary);

    pointer-events: none;

}


.search-container input {

    padding-left: 42px;

    padding-right: 42px;

}


.search-container button {

    position: absolute;

    top: 50%;

    right: 8px;

    width: 32px;

    height: 32px;

    transform: translateY(-50%);

    border: none;

    border-radius: 8px;

    background: transparent;

    color: var(--text-secondary);

    cursor: pointer;

}


.search-container button:hover {

    color: var(--danger);

}


/* ==========================================
   ADVANCED FILTERS
========================================== */

.advanced-filters {

    display: grid;

    grid-template-columns:
        repeat(3, 1fr);

    gap: 10px;

    margin-bottom: 25px;

}


/* ==========================================
   TASK SECTION
========================================== */

.tasks-section {

    padding-top: 25px;

    border-top: 1px solid var(--border);

}


.tasks-header {

    display: flex;

    align-items: center;

    justify-content: space-between;

    margin-bottom: 18px;

}


.tasks-header > div span {

    color: var(--text-secondary);

    font-size: 11px;

}


.tasks-header h2 {

    margin-top: 3px;

    font-size: 18px;

}


.tasks-header > i {

    color: var(--text-secondary);

}


/* ==========================================
   TODO
========================================== */

.todo {

    position: relative;

    display: grid;

    grid-template-columns:
        1fr auto;

    gap: 12px;

    padding: 18px;

    margin-bottom: 10px;

    border: 1px solid var(--border);

    border-left: 4px solid var(--primary);

    border-radius: 15px;

    background: var(--input);

    animation:
        taskAppear 0.25s ease;

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

}


.todo:hover {

    transform: translateY(-2px);

    border-color:
        rgba(
            109,
            93,
            252,
            0.3
        );

}


/* ==========================================
   PRIORIDADES
========================================== */

.todo.priority-high {

    border-left-color:
        var(--danger);

}


.todo.priority-medium {

    border-left-color:
        var(--warning);

}


.todo.priority-low {

    border-left-color:
        var(--success);

}


/* ==========================================
   CONCLUÍDA
========================================== */

.todo.done {

    opacity: 0.65;

}


.todo.done h3 {

    color: var(--text-secondary);

    text-decoration:
        line-through;

}


/* ==========================================
   ATRASADA
========================================== */

.todo.overdue {

    background:
        rgba(
            239,
            68,
            68,
            0.07
        );

}


.todo.overdue .date-badge {

    color:
        var(--danger);

}


.todo.today .date-badge {

    color:
        var(--warning);

}


/* ==========================================
   TODO HEADER
========================================== */

.todo-header {

    display: flex;

    align-items: center;

    gap: 12px;

}


.todo-header h3 {

    font-size: 14px;

    font-weight: 600;

    line-height: 1.5;

    word-break: break-word;

}


/* ==========================================
   FINISH BUTTON
========================================== */

.finish-todo {

    flex-shrink: 0;

    width: 28px;

    height: 28px;

    display: grid;

    place-items: center;

    border: 1px solid var(--border);

    border-radius: 50%;

    background: transparent;

    color: var(--text-secondary);

    cursor: pointer;

}


.todo.done .finish-todo {

    border-color:
        var(--success);

    background:
        var(--success);

    color: white;

}


/* ==========================================
   METADATA
========================================== */

.todo-metadata {

    display: flex;

    flex-wrap: wrap;

    gap: 6px;

    padding-left: 40px;

    margin-top: 10px;

}


.badge {

    display: inline-flex;

    align-items: center;

    gap: 5px;

    padding: 5px 8px;

    border-radius: 7px;

    background:
        rgba(
            255,
            255,
            255,
            0.05
        );

    color: var(--text-secondary);

    font-size: 10px;

}


.badge-high {

    color:
        var(--danger);

}


.badge-medium {

    color:
        var(--warning);

}


.badge-low {

    color:
        var(--success);

}


/* ==========================================
   TODO ACTIONS
========================================== */

.todo-actions {

    display: flex;

    align-items: center;

    gap: 5px;

}


.todo-actions button {

    width: 34px;

    height: 34px;

    border: 1px solid var(--border);

    border-radius: 9px;

    background: transparent;

    color: var(--text-secondary);

    cursor: pointer;

    transition: 0.2s;

}


.todo-actions .edit-todo:hover {

    border-color:
        var(--primary);

    color:
        var(--primary);

}


.todo-actions .remove-todo:hover {

    border-color:
        var(--danger);

    color:
        var(--danger);

}


/* ==========================================
   EMPTY STATE
========================================== */

.empty-state {

    padding: 45px 20px;

    text-align: center;

}


.empty-icon {

    width: 65px;

    height: 65px;

    display: grid;

    place-items: center;

    margin: auto;

    border-radius: 18px;

    background:
        rgba(
            109,
            93,
            252,
            0.1
        );

    color:
        var(--primary);

    font-size: 25px;

}


.empty-state h3 {

    margin-top: 15px;

    font-size: 16px;

}


.empty-state p {

    max-width: 350px;

    margin: 7px auto 0;

    color:
        var(--text-secondary);

    font-size: 12px;

    line-height: 1.6;

}


/* ==========================================
   FOOTER
========================================== */

footer {

    display: flex;

    justify-content: space-between;

    margin-top: 30px;

    padding-top: 20px;

    border-top: 1px solid var(--border);

    color:
        var(--text-secondary);

    font-size: 10px;

}


/* ==========================================
   TOAST
========================================== */

.toast {

    position: fixed;

    right: 25px;

    bottom: 25px;

    display: flex;

    align-items: center;

    gap: 10px;

    padding: 13px 17px;

    border: 1px solid var(--border);

    border-radius: 12px;

    background: var(--card-solid);

    box-shadow:
        0 15px 40px
        rgba(
            0,
            0,
            0,
            0.25
        );

    color: var(--text);

    font-size: 12px;

    opacity: 0;

    transform:
        translateY(100px);

    pointer-events: none;

    transition: 0.3s;

}


.toast.show {

    opacity: 1;

    transform:
        translateY(0);

}


.toast i {

    color:
        var(--success);

}


/* ==========================================
   ANIMATION
========================================== */

@keyframes taskAppear {

    from {

        opacity: 0;

        transform:
            translateY(8px);

    }

    to {

        opacity: 1;

        transform:
            translateY(0);

    }

}


/* ==========================================
   HIDE
========================================== */

.hide {

    display: none !important;

}


/* ==========================================
   RESPONSIVE
========================================== */

@media (max-width: 750px) {

    body {

        padding: 15px;

    }


    .todo-container {

        padding: 20px;

        border-radius: 20px;

    }


    .dashboard {

        grid-template-columns:
            repeat(2, 1fr);

    }


    .task-options {

        grid-template-columns:
            1fr;

    }


    .toolbar {

        grid-template-columns:
            1fr;

    }


    .advanced-filters {

        grid-template-columns:
            1fr;

    }

}


@media (max-width: 500px) {

    .app-header {

        margin-bottom: 20px;

    }


    .brand h1 {

        font-size: 20px;

    }


    .brand-icon {

        width: 42px;

        height: 42px;

    }


    .dashboard {

        gap: 8px;

    }


    .stat-card {

        padding: 13px;

    }


    .stat-icon {

        width: 34px;

        height: 34px;

    }


    .stat-card strong {

        font-size: 18px;

    }


    .todo {

        grid-template-columns:
            1fr;

    }


    .todo-actions {

        justify-content: flex-end;

    }


    .edit-actions {

        grid-template-columns:
            1fr;

    }


    footer {

        flex-direction: column;

        gap: 5px;

    }

}