:root {
    --font-size-displayLarge: 52px;
    --font-size-displayMedium: 46px;
    --font-size-displaySmall: 41px;
    --font-size-heading1: 36px;
    --font-size-heading2: 32px;
    --font-size-heading3: 29px;
    --font-size-heading4: 26px;
    --font-size-heading5: 23px;
    --font-size-heading6: 20px;
    --font-size-subtitle: 18px;
    --font-size-body: 16px;
    --font-size-caption: 14px;
    --font-size-label: 13px;
    --font-size-tagline: 11px;

    /* Neutral Colors */
    --monochrome-0: #ffffff;
    --monochrome-1: #f9fafb;
    --monochrome-2: #f3f4f6;
    --monochrome-3: #e5e7eb;
    --monochrome-4: #d1d5db;
    --monochrome-5: #9ca3af;
    --monochrome-6: #6b7280;
    --monochrome-7: #4b5563;
    --monochrome-8: #374151;
    --monochrome-9: #1f2937;
    --monochrome-10: #111827;
    --monochrome-11: #030712;

    --heading: "Roboto Slab", serif;
    --body: "Inter", sans-serif;
}

* {
    box-sizing: border-box;
    transition: 0.32s ease-in-out;
    color: var(--monochrome-5);
    font-family: var(--body);
}


body {
    font-family: var(--body);
    margin: 0;
    padding: 0;
    height: 100vh;
    position: relative;
    background-color: var(--monochrome-11);
}

footer {
    display: flex;
    flex-direction: column;
    margin: 48px auto;
    padding-bottom: 48px;
}

#footer {
    width: 768px;
    display: flex;
    flex-direction: column;
    gap: 12px;
    justify-content: flex-start;
    align-items: flex-start;
    margin: auto;
}

.footnote {
    font-size: var(--font-size-body);
    color: var(--monochrome-6);
    line-height: 1.6;
    -webkit-user-select: none;
    user-select: none;
    margin: 0;
}

.logo {
    font-family: var(--heading);
    font-size: var(--font-size-heading5);
    font-weight: 600;
    -webkit-user-select: none;
    user-select: none;
}

.contribute {
    border: 1px solid var(--monochrome-10);
    background-color: var(--monochrome-11);
    box-shadow: inset 0px 1px 3px var(--monochrome-8);
    color: var(--monochrome-0);
    padding: 16px 24px;
    border-radius: 50px;
    cursor: pointer;
    -webkit-user-select: none;
    user-select: none;
    font-size: var(--font-size-body);
    color: var(--monochrome-5);
    margin-top: 16px;
}

.contribute:hover {
    background-color: var(--monochrome-10);
}

.main-container {
    width: 960px;
    margin: auto;
}

.hero-section {
    text-align: center;
    background-color: none;
    width: 100%;
}

.quote-box {
    width: 80%;
    margin: 128px auto;
}

#initial-quote {
    font-family: var(--heading);
    font-size: var(--font-size-displayMedium);
    font-weight: 400;
    padding: 0;
    line-height: 1.5;
    margin: 0;
    color: var(--monochrome-5);
}

#initial-character {
    font-family: var(--body);
    font-size: var(--font-size-heading4);
    font-weight: 500;
    color: var(--monochrome-6);
    margin: 32px 0 0 0;
    padding: 0;
    display: inline-block;
    overflow: hidden;
    white-space: nowrap;
    animation: typewriter 6s steps(100) 1;
}

@keyframes typewriter {
    0% {
        width: 0;
    }

    100% {
        width: 100%;
    }
}

.hero-image {
    width: 256px;
    height: 256px;
    border-radius: 128px;
    border-radius: 50%;
    object-fit: cover;
    margin: 0 auto 48px;
    display: block;
    overflow: hidden;
    -webkit-user-select: none;
    user-select: none;
    transition: transform 0.5s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.hero-image:hover {
    transform: scale(1.1);
}


#quote-feed {
    display: grid;
    grid-template-columns: repeat(1, minmax(200px, 1fr));
    gap: 24px;
    padding: 24px 0;
}

.feed-section {
    width: 100%;
    margin: 0 auto;
    padding: 0;
    background-color: var(--monochrome-11);
}

.sticky {
    position: -webkit-sticky;
    position: sticky;
    top: 0;
    z-index: 1000;
    background-color: var(--monochrome-11);
    padding: 24px 0;
    border-radius: 10px;

}

.controls {
    display: flex;
    justify-content: space-between;
    gap: 12px;
    margin: auto;
    width: 768px;
}

#search {
    padding: 12px;
    border: 1px solid var(--monochrome-10);
    border-radius: 8px;
    -webkit-user-select: none;
    user-select: none;
    width: 40%;
    background-color: var(--monochrome-11);
    color: var(--monochrome-4);
    font-size: var(--body);
}

::placeholder {
    color: var(--monochrome-7);
}

#filter,
#feed-show-select {
    padding: 12px;
    border: 1px solid var(--monochrome-10);
    border-radius: 8px;
    -webkit-user-select: none;
    user-select: none;
    width: 30%;
    background-color: var(--monochrome-11);
    color: var(--monochrome-4);
    font-size: var(--body);
}

#filter:hover,
#feed-show-select:hover,
#search:hover {
    border: 1px solid var(--monochrome-9);
    background-color: var(--monochrome-10);
}

#filter:focus,
#feed-show-select:focus,
#search:focus {
    border: 1px solid var(--monochrome-9);
    color: var(--monochrome-4);
}

#filter:focus-visible,
#feed-show-select:focus-visible,
#search:focus-visible {
    border: 1px solid var(--monochrome-9);
    color: var(--monochrome-4);
    outline: none;
}

#filter:active,
#feed-show-select:active,
#search:active {
    border: 1px solid var(--monochrome-9);
    color: var(--monochrome-4);
}

.profile {
    display: flex;
    flex-direction: row;
    align-items: center;
    gap: 12px;
    position: relative;
}

.copy-icon {
    position: absolute;
    top: 0px;
    right: 0px;
    cursor: pointer;
    font-size: 20px;
    color: var(--monochrome-6);
}

.copy-icon:hover {
    color: var(--monochrome-5);
}

.character-info {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.character-info p {
    margin: 0;
    font-family: var(--body);
    font-size: var(--font-size-body);
    color: var(--monochrome-4);
}

.character-info .alias {
    margin: 0;
    font-family: var(--body);
    font-size: var(--font-size-caption);
    color: var(--monochrome-6);
    -webkit-user-select: none;
    user-select: none;
}

.quote-item {
    border: 1px solid var(--monochrome-10);
    padding: 40px;
    border-radius: 24px;
    background-color: var(--monochrome-11);
    -webkit-backdrop-filter: blur(64px);
    backdrop-filter: blur(64px);
    display: flex;
    flex-direction: column;
    gap: 16px;
    width: 768px;
    margin: auto;
    transform: scale(1.0);
    box-shadow: 0 0 0 0 var(--monochrome-11);
    -webkit-user-select: none;
    user-select: none;
}

.quote-item:hover {
    transform: scale(1.03);
    z-index: 10;
    box-shadow: 0 4px 128px 1px var(--monochrome-10);
    border: 1px solid var(--monochrome-9);
}

.feed-image {
    width: 40px;
    height: 40px;
    border-radius: 128px;
    border-radius: 50%;
    object-fit: cover;
    margin: 0;
    display: block;
    overflow: hidden;
    -webkit-user-select: none;
    user-select: none;
    transition: transform 0.5s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.feed-image:hover {
    transform: scale(1.16);
}

.character-quote {
    font-family: var(--body);
    font-size: var(--font-size-subtitle);
    line-height: 1.5;
    color: var(--monochrome-5);
    margin: 0;
}

/* Responsive Styles for Mobile Devices */
@media (max-width: 768px) {

    .main-container,
    #footer {
        width: 90%;
    }

    .controls {
        width: 90%;
    }

    .quote-item {
        width: 90%;
    }

    .hero-section {
        padding: 20px;
    }

    .quote-box {
        padding: 64px 0px;
        width: 100%;
    }

    .controls {
        flex-direction: column;
        align-items: center;
    }

    #search,
    #filter,
    #feed-show-select {
        width: 100%;
    }

    .quote-box {
        width: 90%;
        margin: 48px auto;
    }

    #initial-quote {
        font-size: var(--font-size-displaySmall);
    }

    #initial-character {
        font-size: var(--font-size-heading5);
    }

    .hero-image {
        width: 128px;
        height: 128px;
        margin: 0 auto 32px;
    }

    .quote-item {
        padding: 20px;
    }

    .feed-image {
        width: 32px;
        height: 32px;
    }

    .character-quote {
        font-size: var(--font-size-subtitle);
    }
}

@media (max-width: 480px) {
    .quote-box {
        width: 92%;
        margin: 24px auto;
        padding: 32px 0;
    }

    #initial-quote {
        font-size: var(--font-size-heading3);
        line-height: 1.4;
    }

    #initial-character {
        font-size: var(--font-size-heading6);
        margin-top: 16px;
    }

    .hero-image {
        width: 128px;
        height: 128px;
        margin-bottom: 32px;
    }

    .quote-item {
        padding: 24px;
        border-radius: 16px;
    }

    .feed-image {
        width: 40px;
        height: 40px;
    }

    .character-quote {
        font-size: var(--font-size-subtitle);
    }
}