/* ============================================================
   prototype.bar — Neubrutalism Design System
   Colors: #fefce8 #dbeafe #fce7f3 #d1fae5 #1a1a1a #ffffff #d4d4d8 #ef4444
   Fonts: "Poppins" (Google Fonts) weight 800/600 -- "Inter" (Google Fonts) weight 400
   ============================================================ */

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

:root {
    --canvas-cream:  #fefce8;
    --sketch-blue:   #dbeafe;
    --draft-pink:    #fce7f3;
    --proto-green:   #d1fae5;
    --marker-black:  #1a1a1a;
    --paper-white:   #ffffff;
    --grid-dots:     #d4d4d8;
    --annotation-red:#ef4444;
    --border: 3px solid var(--marker-black);
    --shadow: 4px 4px 0 var(--marker-black);
}

html {
    scroll-behavior: smooth;
}

body {
    background: var(--canvas-cream);
    font-family: 'Inter', sans-serif;
    font-size: 0.95rem;
    line-height: 1.65;
    color: var(--marker-black);
    min-height: 100vh;
}

/* ============================================================
   HERO — Sketch Canvas
   ============================================================ */

.hero {
    background-color: var(--canvas-cream);
    background-image: radial-gradient(circle, rgba(212, 212, 216, 0.4) 1px, transparent 1px);
    background-size: 20px 20px;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 60px 24px;
    position: relative;
}

.hero-inner {
    text-align: center;
    max-width: 640px;
    width: 100%;
}

.hero-title-block {
    display: inline-block;
    border: 3px solid var(--marker-black);
    box-shadow: var(--shadow);
    padding: 20px 40px;
    background: var(--paper-white);
    margin-bottom: 28px;
}

.site-title {
    font-family: 'Poppins', sans-serif;
    font-size: clamp(1.5rem, 4vw, 3rem);
    font-weight: 800;
    color: var(--marker-black);
    letter-spacing: -0.02em;
    line-height: 1.1;
}

.hero-tagline {
    font-family: 'Inter', sans-serif;
    font-size: 1.05rem;
    font-weight: 400;
    color: var(--marker-black);
    line-height: 1.5;
    margin-bottom: 40px;
    padding: 0 16px;
    opacity: 0.75;
}

/* Annotation Arrow */
.annotation-arrow {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    color: var(--annotation-red);
}

.arrow-label {
    font-family: 'Poppins', sans-serif;
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--annotation-red);
    letter-spacing: 0.05em;
    text-transform: lowercase;
}

.arrow-down {
    width: 0;
    height: 0;
    border-left: 10px solid transparent;
    border-right: 10px solid transparent;
    border-top: 14px solid var(--annotation-red);
    animation: bounce-arrow 1.4s ease-in-out infinite;
}

@keyframes bounce-arrow {
    0%, 100% { transform: translateY(0); }
    50%       { transform: translateY(8px); }
}

/* ============================================================
   BENTO GRID
   ============================================================ */

.bento-wrapper {
    padding: 48px 24px;
    background: var(--canvas-cream);
}

.bento-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    max-width: 1000px;
    margin: 0 auto;
    gap: 0;
}

.bento-block {
    border: var(--border);
    box-shadow: var(--shadow);
    padding: 28px;
    position: relative;
    transition: box-shadow 0.2s ease, transform 0.2s ease;
    /* Collapse adjacent borders */
    margin-right: -3px;
    margin-bottom: -3px;
}

.bento-block:hover {
    box-shadow: 2px 2px 0 var(--marker-black);
    transform: translate(2px, 2px);
    z-index: 2;
}

/* Spanning */
.wide { grid-column: span 2; }
.tall { grid-row: span 2; }

/* Background Colors */
.bg-cream  { background: var(--canvas-cream); }
.bg-blue   { background: var(--sketch-blue); }
.bg-pink   { background: var(--draft-pink); }
.bg-green  { background: var(--proto-green); }

/* Block Tag */
.block-tag {
    display: inline-block;
    font-family: 'Poppins', sans-serif;
    font-size: 0.70rem;
    font-weight: 600;
    color: var(--marker-black);
    opacity: 0.5;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    margin-bottom: 12px;
    font-style: italic;
}

/* Block Headings */
.bento-block h2 {
    font-family: 'Poppins', sans-serif;
    font-size: clamp(1rem, 2vw, 1.3rem);
    font-weight: 800;
    color: var(--marker-black);
    line-height: 1.2;
    margin-bottom: 12px;
}

.bento-block p {
    font-size: 0.9rem;
    line-height: 1.6;
    color: var(--marker-black);
    opacity: 0.85;
}

/* Status Badge */
.status-badge {
    display: inline-block;
    margin-top: 16px;
    background: var(--annotation-red);
    color: var(--paper-white);
    font-family: 'Poppins', sans-serif;
    font-size: 0.7rem;
    font-weight: 600;
    letter-spacing: 0.1em;
    padding: 3px 12px;
    border: 2px solid var(--marker-black);
    box-shadow: 2px 2px 0 var(--marker-black);
}

/* Experiment List */
.experiment-list {
    list-style: none;
    margin-top: 16px;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.experiment-list li {
    display: flex;
    align-items: baseline;
    gap: 10px;
    padding-bottom: 10px;
    border-bottom: 1.5px solid rgba(26, 26, 26, 0.15);
}

.experiment-list li:last-child {
    border-bottom: none;
}

.exp-num {
    font-family: 'Poppins', sans-serif;
    font-size: 0.7rem;
    font-weight: 600;
    color: var(--annotation-red);
    flex-shrink: 0;
}

.exp-name {
    font-size: 0.88rem;
    font-weight: 500;
    color: var(--marker-black);
}

/* Tool Chips */
.tool-chips {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 14px;
}

.chip {
    font-family: 'Poppins', sans-serif;
    font-size: 0.72rem;
    font-weight: 600;
    padding: 4px 14px;
    border: 2px solid var(--marker-black);
    box-shadow: 2px 2px 0 var(--marker-black);
    background: var(--paper-white);
    color: var(--marker-black);
    letter-spacing: 0.03em;
}

/* CTA Link */
.cta-link {
    display: inline-block;
    margin-top: 14px;
    font-family: 'Poppins', sans-serif;
    font-size: 0.82rem;
    font-weight: 600;
    color: var(--marker-black);
    text-decoration: none;
    border-bottom: 2px solid var(--annotation-red);
    padding-bottom: 2px;
    transition: color 0.15s;
}

.cta-link:hover {
    color: var(--annotation-red);
}

/* Daily Thought Blockquote */
.daily-thought {
    margin-top: 14px;
    font-size: 0.9rem;
    font-style: italic;
    line-height: 1.5;
    color: var(--marker-black);
    border-left: 3px solid var(--annotation-red);
    padding-left: 12px;
}

/* ============================================================
   ITERATION LOG FOOTER
   ============================================================ */

.iteration-footer {
    background: var(--marker-black);
    padding: 48px 24px;
}

.footer-inner {
    max-width: 1000px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 24px;
}

.footer-label {
    font-family: 'Poppins', sans-serif;
    font-size: 0.72rem;
    font-weight: 600;
    color: rgba(255, 255, 255, 0.4);
    text-transform: lowercase;
    letter-spacing: 0.12em;
    font-style: italic;
}

.version-track {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-wrap: wrap;
    justify-content: center;
}

.version-badge {
    display: inline-block;
    border: 2px solid var(--paper-white);
    border-radius: 20px;
    padding: 5px 18px;
    color: var(--paper-white);
    font-family: 'Poppins', sans-serif;
    font-size: 0.78rem;
    font-weight: 600;
    letter-spacing: 0.04em;
    background: transparent;
    transition: background 0.2s, color 0.2s;
}

.version-badge.active {
    background: var(--paper-white);
    color: var(--marker-black);
}

.version-arrow {
    font-size: 1.1rem;
    color: var(--annotation-red);
    font-weight: 700;
    line-height: 1;
}

.footer-sub {
    font-size: 0.82rem;
    color: rgba(255, 255, 255, 0.35);
    font-family: 'Inter', sans-serif;
    letter-spacing: 0.02em;
}

/* ============================================================
   RESPONSIVE
   ============================================================ */

@media (max-width: 800px) {
    .bento-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 480px) {
    .bento-grid {
        grid-template-columns: 1fr;
    }

    .wide {
        grid-column: span 1;
    }

    .tall {
        grid-row: span 1;
    }

    .hero-title-block {
        padding: 16px 24px;
    }
}