:root {
    --bg: #221507;
    --panel: rgba(36, 25, 14, 0.9);
    --line: #8a6537;
    --ink: #f6e6c7;
    --accent: #e5bf88;
    --frame-dark: #614727;
    --frame-light: #8a6537;
    --paper: #f7b15b;
}

/* Global reset */
* {
    box-sizing: border-box;
}

/* Framed page container */
body {
    margin: 0;
    height: 100vh;
    overflow: hidden;
    background: #ffffff;
    font-family: Georgia, serif;
}

#container {
    position: fixed;
    inset: 3vh;
    border-left: min(2.5vh, 18px) solid var(--frame-dark);
    border-top: min(2.5vh, 18px) solid var(--frame-light);
    border-right: min(2.5vh, 18px) solid var(--frame-dark);
    border-bottom: min(2.5vh, 18px) solid var(--frame-light);
    box-shadow: -1vh 1vh 15px rgb(0, 0, 0);
    overflow: hidden;
}

#Main {
    background: var(--paper);
    height: 100%;
    border: min(2.5vh, 18px) solid transparent;
    border-image-source: url("https://i.imgur.com/180H0IG.png");
    border-image-slice: 14;
    border-image-repeat: stretch;
    padding: 5vmin;
    box-sizing: border-box;
    overflow: auto;
}

#Material {
    max-width: 75ch;
    margin: 0 auto;
    border: 2.5vh solid transparent;
    border-image-source: url("https://i.imgur.com/R5LcgFz.png");
    border-image-slice: 14;
    border-image-repeat: stretch;
    padding: 4vmin;
    color: #4f4012;
    font-size: clamp(1rem, 0.35vw + 0.92rem, 1.1rem);
    line-height: 1.55;
    text-shadow: 0 1px 2px #0004;
}

/* Hero/content */
.hero-image {
    display: block;
    width: 100%;
    height: auto;
    margin-bottom: 1.5em;
}

.hero-title {
    margin: 0;
    text-align: center;
    color: #4a2f0d;
    text-shadow: 0 2px 4px #0006;
    font-size: clamp(1.5rem, 1.1vw + 1.2rem, 2.2rem);
}

.hero-copy {
    text-align: center;
    font-size: 1.2em;
    margin: 0.8em 0 1.4em;
}

/* Auth panel */
.panel {
    width: min(700px, 100%);
    margin: 0 auto;
    background: var(--panel);
    border: 1px solid var(--line);
    border-radius: 14px;
    padding: 24px;
    box-shadow: 0 16px 45px rgba(0, 0, 0, 0.35);
    color: var(--ink);
}

.auth-title {
    margin: 0;
    font-size: clamp(1.35rem, 0.8vw + 1.1rem, 1.9rem);
}

.tagline {
    margin: 8px 0 20px;
    color: #ead8b3;
}

.row {
    display: grid;
    grid-template-columns: 1fr auto;
    gap: 10px;
    margin-bottom: 10px;
}

input,
button {
    border: 1px solid var(--line);
    border-radius: 8px;
    font: inherit;
}

input {
    background: #f7d9a4;
    color: #36230f;
    padding: 10px 12px;
}

button {
    background: var(--accent);
    color: #3d2a14;
    padding: 10px 14px;
    cursor: pointer;
}

button:hover {
    background: #d4a86f;
}

#status {
    min-height: 1.5em;
    margin: 6px 0 0;
    color: #f3d7a8;
}

/* Responsive rules */
@media (max-width: 768px) {
    #container {
        inset: 1.5vh;
    }

    #Main {
        padding: 3.2vmin;
    }

    #Material {
        border-width: min(2vh, 14px);
        padding: 3.5vmin;
        font-size: clamp(0.95rem, 2.9vw, 1.02rem);
    }
}

@media (max-width: 640px) {
    .panel {
        padding: 16px;
    }

    .row {
        grid-template-columns: 1fr;
    }
}