:root {
    --bg-page: rgb(247 249 251);
    --bg-card: rgb(255 255 255);
    --bg-side-bar: rgb(241 245 249);
    --feature-bg: rgb(242 244 246);
    --text-main: #111827;
    --text-muted: rgb(89 92 93);
    --accent: rgb(17 94 89);
    --primary-start: #4052b6;
    --primary-end: #6f7df0;
    --surface-soft: rgb(239 241 242);
    --border-soft: #e5e7eb;
    --side-text-color: rgb(71 85 105);
    --shadow-soft: 0 6px 20px rgba(15, 23, 42, 0.05);
    --checked-task-bg: rgb(0 104 122);
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 20px;
    --header-height: 76px;
    --sidebar-width: 300px;
    --sidebar-z: 1000;
    --overlay-z: 980;
}

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

html {
    scroll-behavior: smooth;
}

body {
    min-height: 100vh;
    font-family: "Google Sans", Arial, sans-serif;
    color: var(--text-main);
    background: var(--bg-page);
    overflow-x: clip;
}

body.nav-open {
    overflow: hidden;
}

a {
    color: inherit;
    text-decoration: none;
}

button,
input,
textarea,
select {
    font: inherit;
}

button {
    color: inherit;
}

img,
svg {
    display: block;
    max-width: 100%;
}

button:focus-visible,
a:focus-visible,
input:focus-visible {
    outline: 3px solid rgba(64, 82, 182, 0.2);
    outline-offset: 3px;
}

.visually-hidden {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

.site-header {
    position: fixed;
    inset: 0 0 auto;
    width: 100%;
    height: var(--header-height);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    padding: 0 1.75rem;
    background: var(--bg-side-bar);
    border-bottom: 1px solid var(--border-soft);
    box-shadow: 0 4px 12px rgba(15, 23, 42, 0.04);
    backdrop-filter: blur(8px);
    z-index: 1100;
}

.header-left-side,
.header-right-side {
    display: flex;
    align-items: center;
    min-width: 0;
}

.header-left-side {
    flex: 1 1 auto;
    gap: 1.5rem;
}

.header-right-side {
    flex: 0 1 auto;
    gap: 0.9rem;
}

.logo-box {
    display: inline-block;
    flex-shrink: 0;
    font-size: 1.9rem;
    font-weight: 700;
    color: var(--primary-start);
    line-height: 1;
    white-space: nowrap;
}

.nav {
    min-width: 0;
}

.nav-list {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    list-style: none;
}

.nav-list a {
    color: #667085;
    font-weight: 500;
    padding-bottom: 0.35rem;
    border-bottom: 2px solid transparent;
    transition: color 0.25s ease, border-color 0.25s ease;
}

.nav-list a:hover,
.nav-list a[aria-current="page"] {
    color: var(--primary-start);
    border-bottom-color: var(--primary-end);
}

.search-bar {
    display: flex;
    align-items: center;
    gap: 0.65rem;
    width: min(18rem, 34vw);
    min-width: 10rem;
    padding: 0.8rem 1rem;
    background: var(--surface-soft);
    border: 1px solid #d8dcff;
    border-radius: 12px;
    transition: border-color 0.25s ease, box-shadow 0.25s ease;
}

.search-bar:focus-within {
    border-color: #d8dcff;
    box-shadow: 0 0 0 4px rgba(111, 125, 240, 0.08);
}

.search-icon {
    flex-shrink: 0;
    font-size: 0.8rem;
    color: var(--text-muted);
}

#search-bar-input {
    width: 100%;
    border: none;
    outline: none;
    background: transparent;
    color: var(--text-main);
    font-size: 0.95rem;
}

#search-bar-input::placeholder {
    color: var(--text-muted);
}

.sidebar-search {
    display: none;
    align-items: center;
    gap: 0.65rem;
    width: 100%;
    margin-bottom: 1rem;
    padding: 0.8rem 1rem;
    background: var(--bg-card);
    border: 1px solid #dfe5ec;
    border-radius: 12px;
    transition: border-color 0.25s ease, box-shadow 0.25s ease;
}

.sidebar-search:focus-within {
    border-color: #d8dcff;
    box-shadow: 0 0 0 4px rgba(111, 125, 240, 0.08);
}

.sidebar-search-input {
    width: 100%;
    border: none;
    outline: none;
    background: transparent;
    color: var(--text-main);
    font-size: 0.95rem;
}

.sidebar-search-input::placeholder {
    color: var(--text-muted);
}

.auth{
    display: inline-flex;
    align-items: center;
    gap: 10px;
}

.profile{
    display: none;
}

.sign-in-styles {
    font-weight: 500;
}
.sign-up-styles{
    border: 1px solid black;
    border-radius: 5px;
    padding: 5px 10px;
}

.sign-in-styles:hover,
.sign-up-styles:hover {
    cursor: pointer;
    color: gray;
    border-color:gray;
}

.profile-logo{
    display: flex;
    justify-content: center;
    align-items: center;
}

.user-profile,
.menu-toggle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border: none;
    cursor: pointer;
}

.user-profile {
    width: 42px;
    height: 42px;
    padding: 0;
    overflow: hidden;
    border-radius: 9999px;
    color: white;
    background: linear-gradient(135deg, var(--primary-start), var(--primary-end));
    transition: transform 0.25s ease, box-shadow 0.25s ease;
    border: 2px solid var(--border-soft);
}

.user-profile img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: inherit;
}

.menu-toggle {
    display: none;
    width: 42px;
    height: 42px;
    flex-shrink: 0;
    border-radius: 12px;
    background: transparent;
    font-size: 1.4rem;
    transition: background-color 0.25s ease, transform 0.25s ease;
}

.menu-toggle:hover,
.menu-toggle[aria-expanded="true"] {
    background: rgba(64, 82, 182, 0.08);
}

.menu-toggle:active {
    transform: scale(0.98);
}

.dashboard-layout {
    display: flex;
    min-height: 100vh;
    padding-top: var(--header-height);
}

.side-bar {
    position: fixed;
    top: var(--header-height);
    left: 0;
    width: var(--sidebar-width);
    height: calc(100dvh - var(--header-height));
    display: flex;
    flex-direction: column;
    padding: 1.5rem 1rem;
    overflow-y: auto;
    background: var(--bg-side-bar);
    border-right: 1px solid var(--border-soft);
    overscroll-behavior: contain;
    z-index: var(--sidebar-z);
    transition: transform 0.28s ease, visibility 0.28s ease;
}

.page-main {
    flex: 1;
    min-width: 0;
    display: flex;
    flex-direction: column;
    min-height: calc(100vh - var(--header-height));
    margin-left: var(--sidebar-width);
    padding: 2rem clamp(1.25rem, 2vw, 2rem) 3rem;
}

.side-bar-top {
    margin-bottom: 1.5rem;
}

.side-bar-title {
    font-size: 1rem;
    font-weight: 700;
}

.side-bar-para {
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--text-muted);
}

.primary-nav,
.category-list,
.side-bar-bottom {
    display: flex;
    flex-direction: column;
}

.primary-nav,
.category-list {
    gap: 0.4rem;
}

.side-bar-bottom {
    margin-top: auto;
}

.side-bar-text,
.trash-btn {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    width: 100%;
    padding: 0.8rem 0.85rem;
    border: none;
    border-radius: 10px;
    background: transparent;
    color: var(--side-text-color);
    text-align: left;
    font-size: 0.98rem;
    font-weight: 500;
    transition: background-color 0.25s ease, color 0.25s ease, transform 0.25s ease,
        box-shadow 0.25s ease;
}

.side-bar-text:not(:disabled),
.trash-btn {
    cursor: pointer;
}

.side-bar-text:hover:not(:disabled):not([aria-current="page"]),
.trash-btn:hover:not([aria-current="page"]) {
    background: linear-gradient(135deg, var(--primary-start), var(--primary-end));
    color: white;
    transform: translateX(2px);
}

.side-bar-text.active,
.side-bar-text[aria-current="page"],
.trash-btn.active,
.trash-btn[aria-current="page"] {
    background: linear-gradient(135deg, var(--primary-start), var(--primary-end));
    color: white;
    font-weight: 600;
    box-shadow: 0 10px 22px rgba(64, 82, 182, 0.18);
}

.side-bar-text:disabled,
.side-bar-text.is-disabled {
    opacity: 0.55;
    cursor: not-allowed;
}

.side-bar-text:disabled:hover,
.side-bar-text.is-disabled:hover {
    background: transparent;
    color: var(--side-text-color);
    transform: none;
    box-shadow: none;
}

.side-bar-icons {
    font-size: 0.95rem;
}

.sidebar-divider {
    margin: 1.5rem 0 0;
    border: none;
    border-top: 1px solid #cfd7df;
}

.categories {
    margin-top: 1rem;
}

.category-title {
    margin-bottom: 0.9rem;
    font-size: 0.68rem;
    font-weight: 700;
    color: var(--text-muted);
    letter-spacing: 0.12em;
    text-transform: uppercase;
}

.new-list-parent {
    margin-top: 1.75rem;
}

.new-list-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.45rem;
    width: 100%;
    padding: 0.85rem 1rem;
    border: none;
    border-radius: 10px;
    color: white;
    font-weight: 700;
    background: linear-gradient(135deg, var(--primary-start), var(--primary-end));
    transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.new-list-btn:hover {
    transform: translateY(-1px);
    box-shadow: 0 10px 18px rgba(64, 82, 182, 0.2);
}

.new-list-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 0.9rem;
}

.plus-icon {
    font-size: 0.72rem;
}

.sidebar-overlay {
    position: fixed;
    inset: var(--header-height) 0 0;
    border: none;
    background: rgba(15, 23, 42, 0.28);
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    z-index: var(--overlay-z);
    transition: opacity 0.25s ease, visibility 0.25s ease;
}

.footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    width: 100%;
    margin-top: 4rem;
    padding: 2rem 0 0;
    border-top: 1px solid var(--border-soft);
    letter-spacing: 0.1em;
    color: rgb(70 69 84);
    text-transform: uppercase;
    font-weight: 700;
    font-size: 10px;
}

.footer-list {
    display: flex;
    gap: 10px;
    list-style: none;
}

.footer-list-style:hover {
    color: var(--primary-end);
}

@media (max-width: 960px) {
    .page-main {
        padding-inline: 1.5rem;
    }
}

@media (max-width: 878px) {
    .site-header {
        gap: 0.75rem;
        padding: 0 1rem;
    }

    .search-bar:focus-within,
    .sidebar-search:focus-within {
        border-color: transparent;
        box-shadow: none;
    }

    #search-bar-input:focus-visible,
    .sidebar-search-input:focus-visible {
        outline: none;
        box-shadow: none;
    }

    .menu-toggle {
        display: inline-flex;
    }

    .nav {
        display: none;
    }

    .header-left-side {
        gap: 0.8rem;
    }

    .header-right-side {
        flex: 1 1 auto;
        justify-content: flex-end;
    }

    .header-right-side .search-bar {
        display: none;
    }

    .dashboard-layout {
        display: block;
    }

    .side-bar {
        width: min(280px, calc(100vw - 1.5rem));
        transform: translateX(calc(-100% - 1rem));
        visibility: hidden;
        pointer-events: none;
        border-right: none;
        box-shadow: 0 18px 40px rgba(15, 23, 42, 0.12);
    }

    body.nav-open .side-bar {
        transform: translateX(0);
        visibility: visible;
        pointer-events: auto;
    }

    body.nav-open .sidebar-overlay {
        opacity: 1;
        visibility: visible;
        pointer-events: auto;
    }

    .sidebar-search {
        display: flex;
    }

    .page-main {
        margin-left: 0;
        padding: 1.5rem 1rem 2.5rem;
    }

    .footer {
        flex-direction: column;
        align-items: flex-start;
        text-align: left;
    }
}

@media (max-width: 560px) {
    .site-header {
        padding-inline: 0.8rem;
    }

    .logo-box {
        font-size: 1.55rem;
    }

    .sidebar-search {
        padding: 0.72rem 0.85rem;
    }
}

@media (max-width: 430px) {
    .user-profile,
    .menu-toggle {
        width: 40px;
        height: 40px;
    }

    .footer {
        align-items: center;
        text-align: center;
    }

    .footer-list {
        flex-direction: column;
    }
}