:root {
    --Neutral-900: hsl(227, 75%, 14%);
    --Neutral-800: hsl(226, 25%, 17%);
    --Neutral-700: hsl(225, 23%, 24%);
    --Neutral-600: hsl(226, 11%, 37%);
    --Neutral-300: hsl(0, 0%, 78%);
    --Neutral-200: hsl(217, 61%, 90%);
    --Neutral-100: hsl(0, 0%, 93%);
    --Neutral-0: hsl(200, 60%, 99%);
    --Red-400: hsl(3, 86%, 64%);
    --Red-500: hsl(3, 71%, 56%);
    --Red-700: hsl(3, 77%, 44%);
    --Light-Gradient: linear-gradient(180deg, #EBF2FC 0%, #EEF8F9 100%);
    --Dark-Gradient: linear-gradient(180deg, #040918 0%, #091540 100%);
}

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

body {
    background-color: var(--Neutral-900);
    color: var(--Neutral-0);
    font-family: "Noto Sans", sans-serif;
}

.nav {
    background-color: var(--Neutral-800);
    color: var(--Neutral-200);
    padding: 10px;

}

.nav2 {
    display: flex;
    justify-content: space-between;
    margin: 20px 45px;
}

.nav2 div {
    font-size: large;
}

#extensionsList {
    font-size: 180%;
    font-weight: bold;
}

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

.filter div {
    padding: 10px;
    background-color: var(--Neutral-700);
    border-radius: 30px;
    min-width: 80px;
    text-align: center;
    font-weight: 500;
    transition: all 0.2s ease;
}



.filter div:hover {
    cursor: pointer;
    border: 1px solid black;
    outline: 1px solid var(--Red-500);
    /* transform: scale(1.05); */
}

.filter .selected {
    background-color: var(--Red-500);
    color: white;
    font-weight: 600;
    border: none;
    outline: none;
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.1);
}

/* ---------Main Content-------- */

.cards {
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
    padding: 20px;
    justify-content: center;
}

.card {
    background-color: var(--Neutral-800);
    border-radius: 10px;
    padding: 20px;
    width: 300px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

.card img {
    width: 50px;
    height: 50px;
    object-fit: cover;
    border-radius: 10px;
}

.remove-button {
    background-color: var(--Neutral-600);
    color: var(--Neutral-0);
    border: none;
    padding: 10px;
    border-radius: 5px;
    cursor: pointer;
}


.switch {
    display: flex;
    align-items: center;
    margin-top: 10px;
}

.toggle-wrapper {
    display: inline-block;
    position: relative;
    width: 40px;
    height: 22px;
}

.toggle-wrapper input {
    opacity: 0;
    width: 0;
    height: 0;
}

.slider {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: var(--Neutral-600);
    transition: .4s;
    border-radius: 34px;
}

.slider.round {
    border-radius: 34px;
}

.toggle-wrapper input:checked+.slider {
    background-color: var(--Red-400);
}

.slider:before {
    position: absolute;
    content: "";
    height: 16px;
    width: 16px;
    left: 3px;
    bottom: 3px;
    background-color: white;
    transition: .4s;
    border-radius: 50%;
}

.toggle-wrapper input:checked+.slider:before {
    transform: translateX(18px);
}

/* ---------- */


/* Theme Toggle Button */
.theme-toggle-btn {
    background: transparent;
    border: none;
    cursor: pointer;
    margin-left: 20px;
    padding: 8px;
    border-radius: 50%;
    transition: background 0.3s;
    display: flex;
    align-items: center;
}

.theme-toggle-btn:hover {
    background: var(--Neutral-700);
}

/* Light Mode Styles */
body.light-mode {
    background: var(--Light-Gradient);
    color: #091540;
}

body.light-mode .nav {
    background: #fff;
    color: #091540;
}

body.light-mode .card {
    background: #fff;
    color: #091540;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.07);
}

body.light-mode .remove-button {
    background-color: #fff;
    color: var(--Red-500);
    border: 1px solid var(--Red-500);
}

body.light-mode .filter div {
    background-color: #fff;
    color: #091540;
    border: 1px solid var(--Neutral-300);
}

body.light-mode .filter .selected {
    background-color: var(--Red-500);
    color: #fff;
}

body.light-mode .switch .slider {
    background-color: var(--Neutral-300);
}

body.light-mode .toggle-wrapper input:checked+.slider {
    background-color: var(--Red-400);
}

body.light-mode .slider:before {
    background-color: #fff;
}

/* ................ */

.nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background-color: var(--Neutral-800);
    color: var(--Neutral-200);
    padding: 18px 32px;
    border-radius: 16px;
    margin: 24px 32px 0 32px;
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.07);
}

.nav-left img {
    vertical-align: middle;
}

.nav-right {
    display: flex;
    align-items: center;
}

.theme-toggle-btn {
    background: var(--Dark-Gradient);
    border: 2px solid var(--Neutral-300);
    border-radius: 50%;
    cursor: pointer;
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: border 0.2s, background 0.2s;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
}

.theme-toggle-btn:hover {
    border: 2px solid var(--Red-500);
    background: var(--Neutral-100);
}

body.light-mode .theme-toggle-btn {
    background: var(--Neutral-0);
    border: 2px solid var(--Neutral-300);
}

body.light-mode .theme-toggle-btn:hover {
    border: 2px solid var(--Red-500);
    background: var(--Neutral-200);
}


/* ----------- Responsive Styles ----------- */
@media (max-width: 900px) {
    .cards {
        gap: 16px;
    }

    .card {
        width: 45vw;
        min-width: 220px;
        max-width: 320px;
    }

    .nav,
    .nav2 {
        margin: 16px 8px 0 8px;
        padding: 12px 8px;
        border-radius: 10px;
    }
}

@media (max-width: 600px) {
    .nav {
        flex-direction: column;
        align-items: flex-start;
        padding: 10px 6px;
        margin: 8px 4px 0 4px;
    }

    .nav-left img {
        width: 110px;
    }

    .nav-right {
        margin-top: 8px;
        margin-left: 0;
    }

    .nav2 {
        flex-direction: column;
        gap: 10px;
        margin: 10px 4px;
        padding: 8px 4px;
        justify-self: center;
    }

    #extensionsList {
        font-size: 130%;
        margin-bottom: 8px;
    }

    .filter {
        gap: 6px;
    }

    .filter div {
        padding: 7px 12px;
        font-size: 1rem;
    }

    .cards {
        flex-direction: column;
        gap: 12px;
        padding: 10px 2px;
        align-items: center;
    }

    .card {
        width: 95vw;
        min-width: 180px;
        max-width: 99vw;
        padding: 14px 10px;
    }

    .remove-button {
        padding: 8px 14px;
        font-size: 1rem;
    }

    .switch {
        margin-top: 8px;
    }

    .theme-toggle-btn {
        width: 38px;
        height: 38px;
        padding: 4px;
    }
}


/* Card Layout & Colors */






.card {
  background-color: var(--Neutral-800);
  border-radius: 16px;
  padding: 22px 18px 18px 18px;
  width: 300px;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.10);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  position: relative;
  border: 1.5px solid transparent;
  transition: border 0.2s, box-shadow 0.2s;
  min-height: 190px;
}

.card img {
  width: 48px;
  height: 48px;
  object-fit: contain;
  border-radius: 12px;
  background: #fff;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
  margin-bottom: 10px;
}

.card-title {
  font-size: 1.18rem;
  font-weight: 700;
  margin-bottom: 4px;
  color: var(--Neutral-0);
}

.card-description {
  font-size: 1rem;
  color: var(--Neutral-200);
  margin-bottom: 10px;
  min-height: 40px;
}

.card-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: auto;
}


.card-content {
  display: flex;
  flex-direction: column;
  height: 100%;
  justify-content: space-between;
}

.card-top {
  display: flex;
  align-items: flex-start;
  gap: 14px;
}

.card-top img {
  width: 48px;
  height: 48px;
  object-fit: contain;
  border-radius: 12px;
  background: #fff;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
}

.card-text {
  display: flex;
  flex-direction: column;
}

.card-title {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 4px;
  color: var(--Neutral-0);
}

.card-description {
  font-size: 0.95rem;
  color: var(--Neutral-200);
  line-height: 1.4;
}

.card-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 18px;
}


/* Light mode specific text styling */
body.light-mode .card-title {
  background: var(--Dark-Gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
}

body.light-mode .card-description {
  color: var(--Neutral-800);
}


.card .remove-button {
    align-self: flex-start;
    background: transparent;
    color: var(--Red-500);
    border: 2px solid var(--Red-500);
    padding: 7px 18px;
    border-radius: 22px;
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    transition: background 0.2s, color 0.2s, border 0.2s;
    margin-bottom: 8px;
    margin-top: 2px;
    box-shadow: none;
}

.card .remove-button:hover,
.card .remove-button:focus {
    background: var(--Red-500);
    color: #fff;
    border: 2px solid var(--Red-500);
    outline: none;
}

.switch {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    margin-top: 0;
    margin-bottom: 0;
}

.toggle-wrapper {
    display: inline-block;
    position: relative;
    width: 40px;
    height: 22px;
}

.toggle-wrapper input {
    opacity: 0;
    width: 0;
    height: 0;
}

.slider {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: var(--Neutral-600);
    transition: .4s;
    border-radius: 34px;
}

.slider.round {
    border-radius: 34px;
}

.toggle-wrapper input:checked+.slider {
    background-color: var(--Red-400);
}

/* ----------Attribution--------- */


.attribution {
  font-size: 0.95rem;
  text-align: center;
  padding: 20px 0;
  color: var(--Neutral-300);
  background: transparent;
  font-weight: 500;
  letter-spacing: 0.3px;
}

.attribution a {
  color: var(--Red-400);
  text-decoration: none;
  font-weight: 600;
  transition: color 0.3s ease, border-bottom 0.2s ease;
  border-bottom: 1px solid transparent;
}

.attribution a:hover {
  color: var(--Red-500);
  border-bottom: 1px solid var(--Red-500);
}

/* Light mode override */
body.light-mode .attribution {
  color: var(--Neutral-700);
}

body.light-mode .attribution a {
  color: var(--Red-500);
}

body.light-mode .attribution a:hover {
  color: var(--Red-700);
  border-bottom: 1px solid var(--Red-700);
}