/* ======================================
   prototype.moe — styles.css
   Retro-futuristic atelier of unfinished things
   ====================================== */

/* Reset */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

/* ---- Variables ---- */
:root {
    --warm-parchment: #F5EDE0;
    --soft-amber: #EDE3CF;
    --walnut-ink: #3B2F25;
    --warm-graphite: #7A6C5D;
    --burnt-sienna: #C2703E;
    --verdigris: #5B8C7A;
    --faded-ochre: #D4C5A9;
    --honeyed-gold: #D4A647;
}

/* ---- Body & Grid Paper ---- */
body.light-table {
    background-color: var(--warm-parchment);
    color: var(--walnut-ink);
    font-family: 'Source Serif 4', Georgia, serif;
    font-size: clamp(1rem, 1.8vw, 1.125rem);
    line-height: 1.7;
    overflow-x: hidden;
    position: relative;
}

.grid-paper-bg {
    position: fixed;
    top: -5%;
    left: -5%;
    width: 110%;
    height: 110%;
    z-index: 0;
    pointer-events: none;
    transform: rotate(0.5deg);
    background-image:
        repeating-linear-gradient(
            to right,
            var(--faded-ochre) 0px,
            var(--faded-ochre) 0.5px,
            transparent 0.5px,
            transparent 24px
        ),
        repeating-linear-gradient(
            to bottom,
            var(--faded-ochre) 0px,
            var(--faded-ochre) 0.5px,
            transparent 0.5px,
            transparent 24px
        ),
        repeating-linear-gradient(
            to right,
            var(--faded-ochre) 0px,
            var(--faded-ochre) 1px,
            transparent 1px,
            transparent 120px
        ),
        repeating-linear-gradient(
            to bottom,
            var(--faded-ochre) 0px,
            var(--faded-ochre) 1px,
            transparent 1px,
            transparent 120px
        );
    opacity: 0.3;
}

/* ---- Compass Stamp Navigation ---- */
.compass-stamp {
    position: fixed;
    top: 24px;
    right: 24px;
    z-index: 100;
    cursor: pointer;
}

.compass-rose {
    animation: slow-spin 120s linear infinite;
    filter: drop-shadow(0 1px 2px rgba(59, 47, 37, 0.1));
    transition: transform 0.3s ease;
}

.compass-stamp:hover .compass-rose {
    transform: scale(1.08);
}

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

.radial-menu {
    position: absolute;
    top: 50%;
    left: 50%;
    list-style: none;
    pointer-events: none;
}

.radial-menu.hidden {
    visibility: hidden;
}

.radial-menu.hidden li {
    opacity: 0;
    transform: rotate(var(--angle)) translateX(0px);
}

.radial-menu li {
    position: absolute;
    top: 0;
    left: 0;
    transform: rotate(var(--angle)) translateX(85px);
    opacity: 1;
    transition: transform 0.4s cubic-bezier(0.25, 0.1, 0.25, 1), opacity 0.3s ease;
    pointer-events: auto;
}

.radial-menu li:nth-child(1) { transition-delay: 0ms; }
.radial-menu li:nth-child(2) { transition-delay: 50ms; }
.radial-menu li:nth-child(3) { transition-delay: 100ms; }
.radial-menu li:nth-child(4) { transition-delay: 150ms; }
.radial-menu li:nth-child(5) { transition-delay: 200ms; }

.radial-menu li a {
    display: block;
    transform: rotate(calc(-1 * var(--angle)));
    white-space: nowrap;
    font-family: 'Architects Daughter', cursive;
    font-size: 0.8rem;
    color: var(--walnut-ink);
    text-decoration: none;
    background: rgba(245, 237, 224, 0.92);
    padding: 4px 10px;
    border-radius: 3px;
    border: 1px solid var(--faded-ochre);
    transition: color 0.2s, border-color 0.2s;
}

.radial-menu li a:hover {
    color: var(--burnt-sienna);
    border-color: var(--burnt-sienna);
}

/* ---- Compass Watermark ---- */
.compass-watermark {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    z-index: 0;
    pointer-events: none;
    animation: slow-spin 120s linear infinite;
}

/* ---- Drafting Column ---- */
.drafting-column {
    position: relative;
    z-index: 1;
    max-width: 640px;
    margin: 0 auto;
    padding: 6rem 2rem 4rem;
}

/* ---- Sheet Sections ---- */
.sheet {
    position: relative;
    background: rgba(245, 237, 224, 0.85);
    padding: 3rem 2.5rem;
    margin-bottom: 1rem;
    box-shadow: 0 1px 3px rgba(59, 47, 37, 0.08);
    border-radius: 2px;
    transform: translateY(4px);
    opacity: 0;
    transition: transform 0.6s cubic-bezier(0.25, 0.1, 0.25, 1),
                opacity 0.6s ease;
}

.sheet.settled {
    transform: translateY(0);
    opacity: 1;
}

/* ---- Typography ---- */
.handwritten-title {
    font-family: 'Caveat', cursive;
    font-weight: 700;
    font-size: clamp(2rem, 5vw, 3.5rem);
    letter-spacing: -0.01em;
    line-height: 1.15;
    color: var(--walnut-ink);
    margin-bottom: 1.5rem;
}

.subtitle {
    font-family: 'Architects Daughter', cursive;
    font-size: 1.1rem;
    color: var(--warm-graphite);
    text-align: center;
    margin-top: -0.5rem;
}

#title {
    text-align: center;
    padding: 5rem 2.5rem;
}

.body-text {
    font-family: 'Source Serif 4', Georgia, serif;
    font-size: clamp(1rem, 1.8vw, 1.125rem);
    line-height: 1.7;
    color: var(--walnut-ink);
    max-width: 60ch;
    margin-top: 1.5rem;
}

.annotation-stamp {
    display: inline-block;
    font-family: 'Architects Daughter', cursive;
    font-size: 0.75rem;
    color: var(--burnt-sienna);
    border: 1.5px solid var(--burnt-sienna);
    padding: 2px 10px;
    border-radius: 2px;
    letter-spacing: 0.05em;
    margin-bottom: 1rem;
    transform: rotate(-1deg);
}

/* ---- Annotations ---- */
.annotations {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    overflow: visible;
}

.margin-note {
    position: absolute;
    font-family: 'Architects Daughter', cursive;
    font-size: 0.8rem;
    color: var(--warm-graphite);
    opacity: 0.7;
    transform: rotate(var(--rotation, 0deg));
    white-space: nowrap;
    transition: transform 0.1s linear;
}

/* ---- Prototype Drawings ---- */
.prototype-drawing {
    margin: 2rem auto;
    max-width: 400px;
}

.prototype-drawing svg {
    width: 100%;
    height: auto;
    display: block;
}

/* Path-draw initial state: invisible */
.path-draw path,
.path-draw line,
.path-draw circle,
.path-draw rect,
.path-draw ellipse,
.path-draw polygon,
.path-draw polyline {
    transition: stroke-dashoffset cubic-bezier(0.25, 0.1, 0.25, 1);
}

/* ---- Fold Lines ---- */
.fold-line {
    margin: 2rem 0;
    position: relative;
}

.fold-line svg {
    width: 100%;
    height: 20px;
    display: block;
}

.fold-line::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 0;
    right: 0;
    height: 6px;
    transform: translateY(-50%);
    box-shadow: 0 1px 2px rgba(59, 47, 37, 0.04);
    pointer-events: none;
}

/* ---- Responsive ---- */
@media (max-width: 800px) {
    .margin-note {
        display: none;
    }

    .drafting-column {
        padding: 4rem 1.2rem 3rem;
    }

    .sheet {
        padding: 2rem 1.5rem;
    }
}

@media (max-width: 480px) {
    .compass-stamp {
        top: 12px;
        right: 12px;
    }

    .compass-rose {
        width: 40px;
        height: 40px;
    }
}

/* ---- Selection ---- */
::selection {
    background: rgba(212, 166, 71, 0.3);
    color: var(--walnut-ink);
}

/* Smooth scroll */
html {
    scroll-behavior: smooth;
}