@import url('https://fonts.googleapis.com/css2?family=Bricolage+Grotesque:wght@400;500;600;700;800&display=swap');
@import url('https://fonts.googleapis.com/css2?family=DM+Sans:wght@400;500;600&display=swap');
@import url('https://fonts.googleapis.com/css2?family=Lilita+One&display=swap');


:root {
    --dark-text: #1a1a1a;
    --light-text: #f6f5f3;
    --background: #63626b;
    --surface: #1f1f1f;
    --strutting-primary: #09b926;
    --strutting-secondary: #dad6ca;
    --strutting-tertiary: #fff9ea;
    --shadow: rgba(0, 0, 0, 0.12);
    --header-top: clamp(24px, 5vh, 48px);
    --header-height: clamp(230px, 28vh, 280px);
    --content-top: calc(var(--header-top) + var(--header-height));
    --pair-gap: clamp(4px, 2vw, 4px);
    --control-width: clamp(240px, 60vw, 320px);
    --preference-panel-bg: rgba(246, 245, 243, 0.06);
    --preference-panel-border: rgba(246, 245, 243, 0.16);
    --preference-text: var(--light-text);
    --preference-text-hover: var(--light-text);
    --preference-toggle-off: rgba(246, 245, 243, 0.08);
    --preference-toggle-border: rgba(246, 245, 243, 0.35);
    --preference-toggle-on: var(--strutting-primary);
    --preference-toggle-thumb: var(--dark-text);
    --preference-toggle-thumb-shadow: rgba(0, 0, 0, 0.35);
    --preference-focus-ring: rgba(246, 245, 243, 0.7);
}

*,
*::before,
*::after {
    box-sizing: border-box;
}

.strutting-header-main{
    color: var(--strutting-primary);
    text-transform: uppercase;
}
.strutting-header-secondary{
    color: var(--light-text);
    text-transform: lowercase;
}
.strutting-title-lockup{
    display: inline-flex;
    flex-direction: column;
    align-items: flex-end;
}
.strutting-header-byline{
    color: var(--dark-text);
    text-align:right; 
}

body {
    font-family: 'Bricolage Grotesque', sans-serif;
    background-color: var(--background);
    color: var(--light-text);
    margin: 0;
    min-height: 100vh;
    height: 100vh;
    display: flex;
    align-items: stretch;
    justify-content: center;
    overflow: hidden;
    line-height: 1.4;
}

.strutting-shell {
    width: 100%;
    min-height: 100vh;
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: flex-start;
}

.strutting-grid {
    position: relative;
    width: 100%;
    min-height: 100vh;
    display: grid;
    grid-template-columns: minmax(320px, 520px) minmax(360px, 560px);
    align-items: flex-start;
    justify-content: center;
    justify-items: center;
    gap: 1rem;
    padding: 2rem 1.25rem 3rem;
    margin-left: auto;
    margin-right: auto;
}

.strutting-headline {
    text-align: center;
    margin-top: 1rem;
    margin-bottom: 0.75rem;
    width: 100%;
    max-width: 820px;
    margin-left: auto;
    margin-right: auto;
    display: flex;
    flex-direction: column;
    align-items: center;
    min-height: var(--header-height);
    position: fixed;
    top: var(--header-top);
    left: 50%;
    transform: translateX(-50%);
    z-index: 10;
}

.artwork-col {
    display: flex;
    justify-content: center;
    align-items: flex-end;
    align-self: stretch;
    min-width: 320px;
    max-width: 540px;
    position: absolute; 
    top: var(--content-top);
    left: 50%;
    transform: translate(calc(-95% - var(--pair-gap)), 0);
    width: clamp(320px, 46vw, 540px);
    height: auto;
    z-index: 4;
}

.userinfo-col {
    width: 100%;
    display: flex;
    justify-content: center;
    align-items: end;
    position: fixed;
    top: var(--content-top);
    left: 50%;
    transform: translate(var(--pair-gap), 20);
    width: clamp(320px, 46vw, 520px);
    z-index: 5;
}

.container {
    width: 100%;
    min-height: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: flex-start;
    padding: 12px 0 24px;
    overflow-y: auto;
    overflow-x: hidden;
    scrollbar-width: none;
    -ms-overflow-style: none;
    max-height: calc(100vh - var(--content-top) - 32px);
}

.container::-webkit-scrollbar {
    display: none;
}

.userinfo-container {
    max-width: 540px;
    width: 100%;
    padding: 8px 0 0 0;
    gap: 8px;
    box-sizing: border-box;
    position: relative;
    z-index: 2;
    flex: 1;
}

p {
    font-family: 'DM Sans', 'Inter', system-ui, -apple-system, sans-serif;
}

h1 {
    font-family: 'Lilita One', sans-serif;
    margin: 0;
    font-weight: 600;
    font-size: clamp(4.6rem, 4vw, 3.6rem);
    letter-spacing: 1px;
    text-transform: uppercase;
    margin-bottom: -15px;
    position: relative;
    z-index: 5;
}

h2 {
    font-family: 'Bricolage Grotesque', sans-serif;
    margin: 0;
    font-size: 1.7rem;
    font-weight: 800;
    letter-spacing: -2px;
    color: var(--dark-text);
    margin-bottom: 0;
    position: relative;
    z-index: 5;
}

h3 {
    font-family: 'Bricolage Grotesque', sans-serif;
    margin: 0;
    font-weight: 200;
    font-size: 1rem;
    letter-spacing: 0px;
    text-transform: lowercase;
    color: var(--strutting-primary);
    margin-bottom: 5px;
    position: relative;
    z-index: 5;
}

.header-content {
    width: 100%;
    max-width: 720px;
    padding: 4px 16px 12px 16px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: flex-end;
    z-index: 2;
}

.app-description {
    margin: 10px 0;
    font-size: 0.95rem;
    color: var(--light-text);
    line-height: 0.5;
    text-align: center;
}

form {
    display: flex;
    flex-direction: column;
    align-items: center;
    width: 100%;
    gap: 8px;
    margin: 0;
    position: relative;
    z-index: 2;
}

input[type="text"] {
    width: 100%;
    max-width: 400px;
    margin: 10px auto 2px auto;
    text-align: center;
    font-size: 17px;
    padding: 12px 16px;
    border-radius: 12px;
    border: 2px solid var(--light-text);
    background-color: var(--surface);
    transition: all 0.2s ease;
    box-shadow: 0 10px 26px rgba(0, 0, 0, 0.28);
    color: var(--strutting-primary);
    font-family: 'Bricolage Grotesque', sans-serif;
    font-weight: 500;
}

input[type="text"]:focus {
    outline: none;
    border-color: var(--light-text);
    box-shadow: 0 10px 26px rgba(0, 0, 0, 0.28);
    transform: translateY(-2px);
}

input[type="text"]::placeholder {
    color: rgba(246, 245, 243, 0.65);
    opacity: 1;
}

.preferences {
    gap: 8px;
    margin: 10px auto 2px auto;
    text-align: left;
    width: 100%;
    max-width: 400px;
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    align-items: start;
    position: relative;
    z-index: 1;
    padding: 14px 14px;
    border-radius: 12px;
    border: 1px solid var(--preference-panel-border);
    background: var(--preference-panel-bg);
    box-shadow: 0 10px 26px rgba(0, 0, 0, 0.28);
}

.preference-item {
    display: grid;
    grid-template-columns: 52px 1fr;
    align-items: center;
    gap: 12px;
    width: 100%;
    justify-content: flex-start;
    padding: 6px 0;
    border-radius: 12px;
    transition: transform 0.2s ease, color 0.2s ease;
    position: relative;
    cursor: pointer;
    color: var(--preference-text);
}

.preference-item:hover {
    transform: translateX(2px);
    color: var(--preference-text-hover);
}

.preference-item input[type="checkbox"] {
    appearance: none;
    width: 48px;
    height: 26px;
    margin: 0;
    cursor: pointer;
    border: 1px solid var(--preference-toggle-border);
    background: var(--preference-toggle-off);
    border-radius: 999px;
    position: relative;
    transition: all 0.18s ease;
    flex-shrink: 0;
    box-shadow: inset 0 0 0 1px rgba(0,0,0,0.12);
}

.preference-item span {
    margin: 0;
    font-size: 0.98rem;
    font-weight: 450;
    color: inherit;
    white-space: normal;
}

.preference-item input[type="checkbox"]::after {
    content: "";
    position: absolute;
    top: 4px;
    left: 4px;
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background: var(--preference-toggle-thumb);
    box-shadow: 0 2px 6px var(--preference-toggle-thumb-shadow);
    transition: transform 0.18s ease, background 0.18s ease, box-shadow 0.18s ease;
}

.preference-item input[type="checkbox"]:checked {
    background: var(--preference-toggle-on);
    border-color: var(--preference-toggle-on);
    box-shadow: inset 0 0 0 1px rgba(0,0,0,0.2);
}

.preference-item input[type="checkbox"]:checked::after {
    transform: translateX(20px);
    background: var(--preference-toggle-thumb);
    box-shadow: 0 2px 6px var(--preference-toggle-thumb-shadow);
}

.preference-item input[type="checkbox"]:focus-visible {
    outline: 2px solid var(--preference-focus-ring);
    outline-offset: 3px;
}

.spotify-button-container {
    margin: 10px auto 0 auto;
    text-align: center;
    width: 100%;
    display: flex;
    justify-content: center;
}

.spotify-button {
    font-family: 'Bricolage Grotesque', 'Inter', system-ui, -apple-system, sans-serif;
    background: rgba(246, 245, 243, 0.08);
    color: var(--light-text);
    border: 1px solid rgba(246, 245, 243, 0.25);
    padding: 12px 20px;
    border-radius: 12px;
    cursor: pointer;
    font-size: 0.98rem;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    transition: transform 0.16s ease, box-shadow 0.16s ease, border-color 0.16s ease, background 0.16s ease;
    box-shadow: 0 10px 24px rgba(0, 0, 0, 0.28);
    text-decoration: none;
    margin: 0 auto;
    width: 100%;
    max-width: 400px;
    min-width: 0;
    letter-spacing: 0.4px;
    text-transform: lowercase;
    position: relative;
    overflow: hidden;
}

.spotify-button:hover {
    transform: translateY(-2px);
    background: #1DB954;
    border-color: rgba(246, 245, 243, 0.4);
    box-shadow: 0 14px 30px rgba(0, 0, 0, 0.32);
}

.spotify-button:active {
    transform: translateY(0);
    box-shadow: 0 8px 18px rgba(0, 0, 0, 0.3);
}

.spotify-button:focus-visible {
    outline: 2px solid rgba(246, 245, 243, 0.7);
    outline-offset: 4px;
}

.spotify-logo {
    width: 18px;
    height: 18px;
}

.auth-info {
    margin: 10px auto 2px auto;
    padding: 0;
    font-size: 0.8rem;
    line-height: 1.5;
    max-width: 400px;
    width: 100%;
    display: flex;
    box-shadow: 0 10px 26px rgba(0, 0, 0, 0.28);
    justify-content: center;
    font-family: 'DM Sans', 'Inter', system-ui, -apple-system, sans-serif;
}

.auth-info p {
    position: relative;
    padding: 12px 14px;
    background:var(--strutting-secondary);
    text-align: center;
    opacity: 0.5;
    border-radius: 12px;
    border: 1px solid rgba(246, 245, 243, 0.18);
    margin: 0;
    box-shadow: 0 10px 26px rgba(0, 0, 0, 0.28);
    backdrop-filter: blur(2px);
    font-family: 'DM Sans', 'Inter', system-ui, -apple-system, sans-serif;
    font-weight: 500;
    color: var(--dark-text)
}

.auth-info p::before {
    content: "i";
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 15px;
    height: 15px;
    margin-right: 10px;
    border-radius: 50%;
    background: var(--shadow);
    color: var(--dark-text);
    font-weight: 700;
    font-size: 0.8rem;
    vertical-align: top;
}

.subtle-link {
    color: var(--strutting-primary);
    text-decoration: none;
    font-size: 0.9rem;
    transition: all 0.2s ease;
    margin-top: 10px;
    display: flex;
    padding: 5px 10px;
    border-radius: 8px;
    font-family: 'Bricolage Grotesque', sans-serif;
}

.subtle-link:hover {
    color: var(--light-text);
    background-color: rgba(246, 245, 243, 0.1);
    text-decoration: none;
}

.error-message {
    background-color: rgba(255, 0, 0, 0.295);
    padding: 10px 15px;
    border-radius: 12px;
    position: center;
    margin: 10px auto 2px auto;
    color: var(--light-text);
    font-weight: 300 !important;
    text-align: center;
    max-width: 400px;
}

.error-message p {
    position: relative;
    padding: 12px 14px;
    background:var(--strutting-secondary);
    text-align: center;
    opacity: 0.5;
    border-radius: 12px;
    margin: 0;
    box-shadow: 0 8px 26px rgba(240, 170, 170, 0.24);
    backdrop-filter: blur(2px);
    font-family: 'DM Sans', 'Inter', system-ui, -apple-system, sans-serif;
    font-weight: 300 !important;
    color: var(--dark-text)
}
.error-message ul {
    list-style: none;
    padding: 0;
    margin: 6px 0 0 0;
}
.error-message li {
    margin: 0;
}

.strutting-artwork {
    max-width: 400px;
    width: 100%;
    height: auto;
    pointer-events: none;
    box-shadow: 0 10px 26px rgba(0, 0, 0, 0.28);
    z-index: 1;
}

.loading-page {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    width: 100%;
    min-height: 100vh;
    position: relative;
    z-index: 2;
    padding: 0;
    box-sizing: border-box;
}

.loading-messages {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 6px;
    z-index: 100;
    position: fixed;
    top: calc(env(safe-area-inset-top, 0px) + 40px);
    left: 50%;
    transform: translateX(-50%);
    width: 100vw;
    max-width: 520px;
    margin: 0;
    padding: 0 12px;
    text-align: center;
    pointer-events: none;
    min-height: 3.5em;
}

.loading-messages p {
    margin: 20;
    font-family: 'Lilita One', sans-serif;
    font-size: 1.25rem;
    color: var(--strutting-primary);
}

.loading-image-wrapper {
    position: fixed;
    left: 50%;
    bottom: 0;
    transform: translateX(-50%);
    width: auto;
    height: 100vh;
    max-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: flex-end;
    z-index: 2;
    pointer-events: none;
    padding-top: 80px;
}

.loading-bg-image {
    position: relative;
    width: auto;
    height: 100%;
    display: flex;
    align-items: flex-end;
    justify-content: center;
}

.loading-bg-image img {
    height: 85vh;
    width: auto;
    max-height: 100vh;
    object-fit: contain;
    display: flex;
}

.loading-starbolts {
    position: absolute;
    left: 52%;
    top: clamp(48%, 45vh, 52%);
    transform: translate(-50%, -50%);
    width: clamp(26px, 6vw, 38px);
    height: clamp(26px, 6vw, 38px);
    display: flex;
    align-items: center;
    justify-content: center;
    pointer-events: none;
    z-index: 3;
}

.loading-starbolt {
    position: absolute;
    width: clamp(22px, 5.5vw, 34px);
    height: clamp(22px, 5.5vw, 34px);
    opacity: 0;
    z-index: 2;
    transition: opacity 0.5s ease-in-out, transform 0.5s ease-in-out;
    transform: scale(0.95);
    pointer-events: none;
    will-change: opacity, transform;
}

.loading-starbolt.active {
    opacity: 1;
    transform: scale(1.1);
    animation: pulse-starbolt 1.5s ease-in-out infinite;
    z-index: 4;
}

.loading-starbolt.fading {
    opacity: 0;
    transform: scale(1.05);
    z-index: 3;
}

@keyframes pulse-starbolt {
    0% { transform: scale(1.15); }
    50% { transform: scale(1.35); }
    100% { transform: scale(1.15); }
}

.loading-starbolt img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.result-container {
    min-height: 100vh;
    display: flex;
    color: var(--light-text);
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 20px 16px 32px;
    gap: 12px;
    text-align: center;
    z-index: 2;
}

.playlist-image {
    margin: 20px auto;
    position: relative;
    z-index: 0;
    width: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
}

.playlist-image img {
    width: 300px;
    height: 300px;
    margin-bottom: 10px;
    box-shadow: 12px 12px 0 rgba(0, 0, 0, 0.25);
    object-fit: cover;
    background: var(--background);
}

.result-actions {
    margin-top: 8px;
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 16px;
    flex-wrap: wrap;
}

.unstyled-link {
    color: inherit;
    text-decoration: none;
    font: inherit;
    box-shadow: none;
    background: none;
}

@media (max-width: 900px) {
    .sticker-collage img { max-width: 160px; }
    .userinfo-container { max-width: 96vw; }
    .strutting-headline {
        position: relative;
        top: 0;
        left: 0;
        transform: none;
        margin-top: 1rem;
        min-height: auto;
        padding: 0 12px;
        display: flex;
        justify-content: center;
        align-items: center;
    }
    body {
        overflow-y: auto;
        -webkit-overflow-scrolling: touch;
    }    
    .strutting-grid {
        min-height: auto;
        grid-template-columns: 1fr;
        padding-top: 1.5rem;
    }

    .strutting-title-lockup {
        display: inline-flex;
        flex-direction: column;
        align-items: flex-end;
        width: auto;
        max-width: 80vw;
        margin: 0 auto;
        text-align: left;
    }

    .strutting-title-lockup h1,
    .strutting-headline h1 {
        font-size: clamp(4rem, 14vw, 10rem);
        line-height: 0.98;
        margin: 0;
        white-space: normal;
        word-break: break-word;
        text-align: left;
    }

    .strutting-header-byline {
        align-self: flex-end;
        text-align: right;
        font-size: clamp(1.05rem, 4.8vw, 1.6rem);
        margin: 6px 0 0 0;
        color: var(--dark-text);
    }

    .strutting-headline .app-description {
        font-size: clamp(0.82rem, 2.4vw, 1rem);
        line-height: 1.1;
        margin-top: 8px;
        text-align: center;
    }

    .artwork-col,
    .userinfo-col {
        position: static;
        max-width: none;
        transform: none;
    }
    .artwork-col {
        order: -1;
        position: static;
        left: auto;
        transform: none;
        width: 55vw;
        max-width: 55vw;
        margin: 12px auto;
    }
    .userinfo-col {
        order: 1;
        width: 100%;
    }
    .strutting-artwork {
        max-width: 55vw;
        width: 100%;
        height: auto;
    }
    .container {
        max-height: none;
    }
}

@media (max-width: 540px) {
    .preferences {
        grid-template-columns: repeat(2, minmax(0, 1fr));
        max-width: 100%;
    }
    .preference-item {
        grid-template-columns: 52px 1fr;
    }
}

@media (max-width: 375px) {
    :root {
        --header-top: 12px;
        --header-height: clamp(100px, 18vh, 140px);
        --content-top: calc(var(--header-top) + var(--header-height));
    }

    .strutting-title-lockup {
        max-width: 80vw;
        margin: 0 auto;
    }

    .strutting-title-lockup h1,
    .strutting-headline h1 {
        font-size: clamp(3rem, 12vw, 7rem);
        line-height: 0.98;
        margin: 0;
        text-align: left;
        white-space: normal;
        word-break: break-word;
    }

    .strutting-header-byline {
        font-size: clamp(1.1rem, 4.5vw, 1.6rem);
        font-weight: 600;
        margin-top: 6px;
        align-self: flex-end;
        text-align: right;
    }

    .strutting-headline .app-description {
        font-size: clamp(0.72rem, 2.2vw, 0.9rem);
        margin-top: 6px;
        text-align: center;
    }

    .artwork-col {
        width: 45vw;
        max-width: 45vw;
        margin: 8px auto;
        position: static;
        left: auto;
        transform: none;
        order: -1 !important;
    }

    .strutting-artwork {
        width: 90%;
        max-width: 90%;
        aspect-ratio: 3 / 2;
        object-fit: cover;
        display: block;
        margin: 4px auto;
    }

    .container {
        padding: 6px 0 12px;
        max-height: calc(100vh - var(--content-top) - 12px);
    }

    .userinfo-col { order: 1 !important; }

    .strutting-grid {
        padding: 1rem 0.75rem 1rem;
        gap: 0.6rem;
    }

    input[type="text"] {
        width: 85%;
        max-width: 320px;
        margin-left: auto;
        margin-right: auto;
        display: block;
    }

    .spotify-button {
        width: 85%;
        max-width: 320px;
        margin-left: auto;
        margin-right: auto;
        display: block;
    }

    .preferences {
        font-size: 0.86rem;
    }

    .preference-item span {
        font-size: 0.82rem;
    }
}

@media (max-width: 768px) {
    h1 { font-size: clamp(2rem, 9vw, 2.8rem); }
    h2 { font-size: 1.2rem; }
    .cassie-image img { width: 150px; }
    .loading-bg-image img { height: 78vh; }
    .loading-starbolts { top: clamp(54%, 52vh, 58%); }
    .strutting-grid { grid-template-columns: 1fr; }
    .artwork-col { order: -1; position: static; left: auto; transform: none; width: 55vw; max-width: 55vw; margin: 0 auto; }
    .userinfo-col { order: 1; }
    .strutting-grid { padding-top: 1rem; }
}

@media (max-width: 600px) {
    .sticker-collage img { max-width: 110px; }
    .userinfo-container { max-width: 98vw; }
    .loading-messages { max-width: 92vw; }
    .cassie-image img { width: 140px; }
}