@font-face {
    font-family: "Instrument Sans";
    font-style: normal;
    font-weight: 400 700;
    font-display: swap;
    src: url("assets/fonts/instrument-sans/instrument-sans_variable.woff2") format("woff2-variations");
}

@font-face {
    font-family: "Instrument Sans";
    font-style: italic;
    font-weight: 400 700;
    font-display: swap;
    src: url("assets/fonts/instrument-sans/instrument-sans_variable_italic.woff2") format("woff2-variations");
}

@font-face {
    font-family: "DM Mono";
    font-style: normal;
    font-weight: 400;
    font-display: swap;
    src: url("assets/fonts/dm-mono/dm-mono_regular.woff2") format("woff2");
}

@font-face {
    font-family: "DM Mono";
    font-style: italic;
    font-weight: 400;
    font-display: swap;
    src: url("assets/fonts/dm-mono/dm-mono_italic.woff2") format("woff2");
}

@font-face {
    font-family: "DM Mono";
    font-style: normal;
    font-weight: 700;
    font-display: swap;
    src: url("assets/fonts/dm-mono/dm-mono_bold.woff2") format("woff2");
}

@font-face {
    font-family: "DM Mono";
    font-style: italic;
    font-weight: 700;
    font-display: swap;
    src: url("assets/fonts/dm-mono/dm-mono_bold_italic.woff2") format("woff2");
}

:root {
    --red: #E16470;
    --yellow: #EEC675;
    --green: #9ECB78;

    --gray-10: #D6D6D6;
    --gray-20: #989898;
    --gray-30: #7A7A7A;
    --gray-40: #5C5C5C;
    --gray-50: #404040;
    --gray-60: #333333;
    --gray-70: #262626;
    --gray-80: #1F1F1F;
    --gray-90: #1C1C1C;

    --color-background: #090909;
    --color-text: var(--gray-10);
}

* {
    box-sizing: border-box;
}

html {
    background: var(--color-background);
    color-scheme: dark;
}

body {
    font-family: "Instrument Sans", -apple-system, BlinkMacSystemFont, sans-serif;
    color: var(--color-text);
    margin: 0;
    padding: 0;
    max-width: 1800px;
}

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

header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 2rem;
}

.logo-container {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.logo-text {
    font-size: 1.25rem;
    font-weight: 500;
}

.logo-image {
    width: 45px;
    height: 45px;
}

nav {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    margin-right: 1rem;
}

nav ul {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    margin: 0;
    padding: 0;
    list-style: none;
}

nav ul li {
    color: var(--gray-20);
    transition: all 0.2s ease;
}

nav ul li:hover {
    color: var(--gray-10);
}

nav ul li .icon {
    width: 16px;
    height: 16px;
    background-color: currentColor;
    -webkit-mask: url("assets/github.svg") no-repeat center / contain;
    mask: url("assets/github.svg") no-repeat center / contain;
}

nav ul li svg {
    width: 16px;
    height: 16px;
    flex-shrink: 0;
}

nav ul li a {
    display: flex;
    align-items: center;
    gap: 0.4rem;
}

.hero-container {
    display: flex;
    flex-direction: row;
    align-items: center;
    padding: 4rem 2rem;
    margin: 0 4rem;
    gap: 1.5rem;
}

/* ---- left content ---- */

.hero {
    flex: 1;
}

.hero > h1 {
    font-size: 3.2rem;
    font-weight: 500;
    line-height: 1;
    margin: 0;
}

.hero > h1 > span {
    color: var(--green);
}

.hero p {
    font-size: 1.25rem;
    line-height: 1.5;
    color: var(--gray-20);
    margin: 1.5rem 0 0;
    max-width: 600px;
}

.hero > ul {
    margin: 1.5rem 0 0;
    padding-left: 0;
    color: var(--gray-20);
    list-style: none;
}

.hero > ul > li {
    display: flex;
    align-items: center;
    color: var(--gray-10);
    margin-bottom: 0.75rem;
}

.hero > ul > li .icon {
    color: var(--green);
    margin-right: 0.5rem;
    width: 16px;
    height: 16px;
}

.hero > form {
    margin-top: 2rem;
    display: flex;
    gap: 0.75rem;
}

.hero > form > input {
    padding: 0.75rem 1rem;
    border-radius: 0.5rem;
    border: 1px solid var(--gray-60);
    background: var(--gray-80);
    color: var(--color-text);
    font-family: 'Instrument Sans', -apple-system, BlinkMacSystemFont, sans-serif;
    font-size: 1rem;
    flex: 1;
    max-width: 300px;
    outline: none;
    transition: all 0.2s ease;
}

.hero > form > input::placeholder {
    color: var(--gray-20);
}

.hero > form > input.field-url {
    position: absolute;
    left: -10000px;
    width: 1px;
    height: 1px;
    overflow: hidden;
    opacity: 0;
    pointer-events: none;
}

.hero > form > input:focus {
    border-color: var(--yellow);
}

.hero > form > button {
    padding: 0.75rem 1.5rem;
    border-radius: 0.5rem;
    border: none;
    background: var(--yellow);
    color: var(--color-background);
    font-family: 'Instrument Sans', -apple-system, BlinkMacSystemFont, sans-serif;
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s ease;
}

.hero > form > button:hover {
    background: var(--yellow);
    filter: brightness(0.9);
}

.hero .subtext {
    display: block;
    font-size: 1.1rem;
    color: var(--gray-20);
    margin-top: 0.75rem;
    padding-left: 0.25rem;
}

.hero code {
    font-family: 'DM Mono', monospace;
    background: var(--gray-70);
    padding: 0.1rem 0.25rem;
    border-radius: 0.25rem;
    font-size: 0.75rem;
    color: var(--green);
}

/* ---- right content ---- */

.preview {
    flex: 1;
    border-radius: 0.5rem;
    padding: 1rem;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.preview-video {
    width: 70%;
    margin: 0 auto;
    border-radius: 0.5rem;
    object-fit: cover;
}

/* ---- form feedback ---- */

.form-message {
    margin-top: 2rem;
    padding: 0.5rem 0.8rem;
    border-radius: 0;
    background: var(--gray-80);
    color: var(--color-text);
    font-size: 1rem !important;
    border-left: 3px solid var(--gray-50);
    max-width: 420px;
}

.form-message.success {
    border-left-color: var(--green);
}

.form-message.error {
    border-left-color: var(--red);
    color: var(--red);
}

.hero > form > button:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

/* ---- verified page ---- */

.verified-container {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 4rem 2rem;
    margin: 0 4rem;
    min-height: 60vh;
}

.verified {
    max-width: 520px;
    text-align: center;
}

.verified .status-icon {
    width: 72px;
    height: 72px;
    margin: 0 auto 1.75rem;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background: var(--gray-80);
}

.verified.success .status-icon { color: var(--green); }
.verified.error .status-icon { color: var(--red); }
.verified.loading .status-icon { color: var(--yellow); }

.verified > h1 {
    font-size: 2.6rem;
    font-weight: 500;
    line-height: 1.05;
    margin: 0;
}

.verified.success > h1 > span { color: var(--green); }
.verified.error > h1 > span { color: var(--red); }

.verified > p {
    font-size: 1.15rem;
    color: var(--gray-20);
    margin: 1.25rem 0 2rem;
}

.verified > a.back-link {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    border-radius: 0.5rem;
    background: var(--yellow);
    color: var(--color-background);
    font-weight: 500;
    transition: all 0.2s ease;
}

.verified > a.back-link:hover {
    filter: brightness(0.9);
}

.spinner {
    width: 36px;
    height: 36px;
    border: 3px solid var(--gray-70);
    border-top-color: var(--yellow);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* ---- responsive ---- */

@media (max-width: 1024px) {
    .hero-container {
        margin: 0 1.5rem;
        padding: 3rem 0.5rem;
        gap: 2rem;
    }

    .hero > h1 {
        font-size: 2.6rem;
    }

    .preview-video {
        width: 100%;
    }

    .verified-container {
        margin: 0 1.5rem;
    }
}

@media (max-width: 768px) {
    header {
        padding: 1.5rem 2.5rem;
    }

    nav {
        margin-right: 0;
        gap: 1rem;
    }

    nav ul {
        gap: 1rem;
    }

    .logo-image {
        width: 36px;
        height: 36px;
    }

    .logo-text {
        font-size: 1.1rem;
    }

    .hero-container {
        flex-direction: column-reverse;
        padding: 1.5rem 0 3rem;
        margin: 0 2.5rem;
        gap: 2.5rem;
    }

    .hero {
        width: 100%;
        text-align: center;
    }

    .hero > h1 {
        font-size: 2.4rem;
    }

    .hero > h1 > br {
        display: none;
    }

    .hero p {
        font-size: 1.1rem;
        margin: 1.25rem auto 0;
    }

    .hero > ul {
        display: inline-block;
        text-align: left;
    }

    .hero > form {
        flex-direction: column;
        gap: 0.6rem;
    }

    .hero > form > input {
        max-width: none;
        width: 100%;
        text-align: center;
    }

    .hero > form > button {
        width: 100%;
    }

    .hero .subtext {
        padding-left: 0;
    }

    .form-message {
        margin-left: auto;
        margin-right: auto;
    }

    .preview {
        padding: 0;
        width: 100%;
        margin-top: 3rem;
    }

    .preview-video {
        width: 100%;
        max-width: 480px;
    }

    .verified-container {
        padding: 3rem 1rem;
        margin: 0;
        min-height: 50vh;
    }

    .verified > h1 {
        font-size: 2rem;
    }

    .verified > p {
        font-size: 1.05rem;
    }
}

@media (max-width: 480px) {
    header {
        padding: 1.25rem 1.75rem;
    }

    .logo-container {
        gap: 0.5rem;
    }

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

    nav ul {
        gap: 0.75rem;
    }

    nav ul li a {
        font-size: 0.95rem;
    }

    .hero-container {
        margin: 0 1.75rem;
        padding: 1rem 0 2.5rem;
    }

    .hero > h1 {
        font-size: 2rem;
    }

    .hero p {
        font-size: 1rem;
    }

    .hero > ul > li {
        font-size: 0.95rem;
        align-items: flex-start;
    }

    .hero > ul > li .icon {
        margin-top: 0.2rem;
        flex-shrink: 0;
    }

    .hero .subtext {
        font-size: 1rem;
    }

    .verified > h1 {
        font-size: 1.75rem;
    }
}