/* ========================================
   One Page Zine — styling adapted from shellylynnx.com
   ======================================== */

:root {
  --color-bg: #1A1714;
  --color-bg-alt: #211e1a;
  --color-text: #E8E0D4;
  --color-text-secondary: #b5ad9e;
  --color-text-dim: #6B6358;
  --color-accent: #345A40;
  --color-accent-hover: #2a4a34;
  --color-secondary: #C8A54E;
  --color-highlight: #E48B47;
  --color-border: #3a352f;
  --color-card-bg: #211e1a;
  --color-error: #8B2500;
  --font-body: "Inter", system-ui, -apple-system, sans-serif;
  --font-display: "Playfair Display", Georgia, serif;
}

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

body {
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.7;
  color: var(--color-text);
  background: var(--color-bg);
  min-height: 100vh;
  padding: 3rem 1.25rem;
  -webkit-font-smoothing: antialiased;
  transition: background-color 0.3s, color 0.3s;
}

body.light {
  --color-bg: #F5F0E8;
  --color-bg-alt: #EBE6DC;
  --color-text: #1A1714;
  --color-text-secondary: #4a4640;
  --color-text-dim: #8a8478;
  --color-border: #d4cfc6;
  --color-card-bg: #EBE6DC;
  --color-secondary: #8a6b20;
  --color-highlight: #B8571F;
}

main {
  max-width: 860px;
  margin: 0 auto;
}

/* ── Header ──────────────────────────────────────────────────── */
header {
  text-align: center;
  margin-bottom: 2.5rem;
}

header h1 {
  font-family: var(--font-display);
  font-size: clamp(2rem, 5vw, 3rem);
  font-weight: 600;
  line-height: 1.15;
  letter-spacing: 0.01em;
  color: var(--color-text);
  margin-bottom: 0.5rem;
}

header p {
  font-size: 1rem;
  color: var(--color-text-dim);
  font-style: italic;
  letter-spacing: 0.02em;
}

/* ── Zine grid ───────────────────────────────────────────────── */
.grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  grid-template-rows: repeat(2, 1fr);
  gap: 8px;
  aspect-ratio: 11 / 8.5;
  background: var(--color-card-bg);
  border: 1px solid var(--color-border);
  border-radius: 6px;
  padding: 10px;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.3);
}

body.light .grid {
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.1);
}

.slot {
  position: relative;
  background: var(--color-bg);
  border: 1.5px dashed var(--color-border);
  border-radius: 3px;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  transition: border-color 0.2s, background 0.2s;
}

.slot:hover,
.slot:focus-visible,
.slot.dragover {
  border-color: var(--color-secondary);
  background: var(--color-bg-alt);
}

.slot:focus-visible {
  outline: 2px solid var(--color-secondary);
  outline-offset: -2px;
}

.slot.filled {
  border: 1px solid var(--color-border);
}

.slot img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.slot[data-index="0"] img,
.slot[data-index="1"] img,
.slot[data-index="2"] img,
.slot[data-index="3"] img {
  transform: rotate(180deg);
}

.slot .num {
  font-family: var(--font-display);
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--color-text-dim);
  text-align: center;
  padding: 8px 12px 0;
  pointer-events: none;
}

.slot .label {
  font-size: 0.6875rem;
  color: var(--color-text-dim);
  letter-spacing: 0.04em;
  text-transform: uppercase;
  margin: 0;
  padding: 0 10px 8px;
  pointer-events: none;
}

.slot .remove {
  position: absolute;
  top: 6px;
  right: 6px;
  background: rgba(26, 23, 20, 0.72);
  color: var(--color-text);
  border: 1px solid var(--color-border);
  border-radius: 50%;
  width: 24px;
  height: 24px;
  font-size: 13px;
  cursor: pointer;
  display: none;
  align-items: center;
  justify-content: center;
  line-height: 1;
  transition: background 0.2s, color 0.2s;
}

.slot .remove:hover {
  background: var(--color-highlight);
  color: var(--color-bg);
  border-color: var(--color-highlight);
}

.slot .remove:focus-visible {
  outline: 2px solid var(--color-secondary);
  outline-offset: 1px;
}

.slot.filled .remove {
  display: flex;
}

.slot input[type="file"] {
  position: absolute;
  inset: 0;
  opacity: 0;
  cursor: pointer;
  width: 100%;
  height: 100%;
}

.slot.filled input[type="file"] {
  display: none;
}

/* ── Counter ─────────────────────────────────────────────────── */
.count-wrap {
  margin-top: 1.25rem;
  text-align: center;
}

.count {
  font-size: 0.8125rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-secondary);
}

/* ── Buttons ─────────────────────────────────────────────────── */
.buttons {
  display: flex;
  gap: 0.75rem;
  justify-content: flex-end;
  flex-wrap: wrap;
  margin-top: 1.5rem;
}

button#downloadBtn,
button#downloadImgBtn,
button#clearAllBtn {
  display: inline-block;
  padding: 12px 28px;
  font-family: var(--font-body);
  font-size: 0.875rem;
  font-weight: 500;
  letter-spacing: 0.03em;
  border-radius: 4px;
  transition: all 0.2s;
  cursor: pointer;
}

button#downloadBtn {
  background: var(--color-accent);
  color: #E8E0D4;
  border: 1px solid var(--color-accent);
}

button#downloadBtn:hover:not(:disabled) {
  background: var(--color-accent-hover);
  border-color: var(--color-accent-hover);
}

button#downloadImgBtn {
  background: transparent;
  color: var(--color-secondary);
  border: 1px solid var(--color-secondary);
}

button#downloadImgBtn:hover:not(:disabled) {
  background: var(--color-secondary);
  color: var(--color-bg);
}

button#clearAllBtn {
  background: transparent;
  color: var(--color-text-secondary);
  border: 1px solid var(--color-border);
}

button#clearAllBtn:hover {
  border-color: var(--color-text-secondary);
  color: var(--color-text);
}

button#downloadBtn:disabled,
button#downloadImgBtn:disabled {
  background: transparent;
  color: var(--color-text-dim);
  border-color: var(--color-border);
  cursor: not-allowed;
}

button:focus-visible {
  outline: 2px solid var(--color-secondary);
  outline-offset: 2px;
}

/* ── Toast notifications ─────────────────────────────────────── */
#toast-container {
  position: fixed;
  bottom: 1.5rem;
  left: 50%;
  transform: translateX(-50%);
  z-index: 1000;
  pointer-events: none;
}

.toast {
  padding: 0.75rem 1.25rem;
  border-radius: 4px;
  font-family: var(--font-body);
  font-size: 0.875rem;
  color: #E8E0D4;
  opacity: 0;
  transform: translateY(10px);
  transition: opacity 0.3s, transform 0.3s;
  pointer-events: auto;
  max-width: 400px;
  text-align: center;
  border: 1px solid transparent;
}

.toast-visible {
  opacity: 1;
  transform: translateY(0);
}

.toast-error {
  background: var(--color-error);
  border-color: var(--color-highlight);
}

.toast-info {
  background: var(--color-bg-alt);
  border-color: var(--color-border);
  color: var(--color-text);
}

/* ── Responsive ──────────────────────────────────────────────── */
@media (max-width: 640px) {
  body { padding: 2rem 1rem; }
  .buttons {
    justify-content: stretch;
    flex-direction: column;
  }
  button#downloadBtn,
  button#downloadImgBtn,
  button#clearAllBtn {
    width: 100%;
  }
}

@media (prefers-reduced-motion: reduce) {
  .slot,
  .slot .remove,
  button#downloadBtn,
  button#downloadImgBtn,
  button#clearAllBtn,
  .toast {
    transition: none;
  }
  .toast-visible { transform: none; }
}