:root {
    --bg: #fbf9f3;
    --panel: rgba(255, 255, 255, 0.85);
    --ink: #1a1f2b;
    --muted: #5d667a;
    --accent: #0f766e;
    --accent-strong: #0f4c5c;
    --secondary: #f5efe3;
    --danger: #a11f2f;
    --border: #d9d6cf;
    --shadow: 0 12px 35px rgba(28, 31, 40, 0.14);
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    min-height: 100vh;
    font-family: "Outfit", "Segoe UI", sans-serif;
    color: var(--ink);
    background: radial-gradient(circle at 15% 20%, #fce7c8, transparent 38%),
        radial-gradient(circle at 85% 0%, #b7efe1, transparent 30%),
        linear-gradient(145deg, #f7f4ed 0%, #f2eee3 50%, #eef7f6 100%);
    overflow-x: hidden;
}

.bg-glow {
    position: fixed;
    border-radius: 50%;
    filter: blur(60px);
    opacity: 0.35;
    pointer-events: none;
    z-index: 0;
    animation: float 9s ease-in-out infinite;
}

.bg-glow-1 {
    width: 220px;
    height: 220px;
    background: #f59e0b;
    top: -40px;
    left: -60px;
}

.bg-glow-2 {
    width: 260px;
    height: 260px;
    background: #14b8a6;
    right: -80px;
    bottom: 80px;
    animation-delay: 2s;
}

.app-shell {
    position: relative;
    z-index: 1;
    max-width: 1140px;
    margin: 0 auto;
    padding: 2.4rem 1rem 2.8rem;
}

.app-header {
    text-align: center;
    margin-bottom: 1.5rem;
    animation: slide-in 0.5s ease-out;
}

.eyebrow {
    margin: 0;
    font-family: "Space Mono", monospace;
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    color: var(--accent-strong);
}

.app-header h1 {
    margin: 0.4rem 0 0.6rem;
    font-size: clamp(1.7rem, 4vw, 2.8rem);
    line-height: 1.15;
}

.subtitle {
    margin: 0 auto;
    max-width: 700px;
    color: var(--muted);
    font-size: 1rem;
}

.github-link {
    margin-top: 1rem;
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    border: 1px solid var(--border);
    border-radius: 999px;
    padding: 0.45rem 1rem;
    background: rgba(255, 255, 255, 0.75);
    color: var(--ink);
    text-decoration: none;
    font-weight: 600;
}

.github-link:hover {
    transform: translateY(-1px);
    border-color: #b7b29f;
}

.app-grid {
    display: grid;
    grid-template-columns: minmax(300px, 450px) 1fr;
    gap: 1rem;
}

.panel {
    background: var(--panel);
    border: 1px solid rgba(200, 196, 188, 0.85);
    border-radius: 18px;
    box-shadow: var(--shadow);
    backdrop-filter: blur(6px);
    padding: 1rem;
    animation: fade-up 0.45s ease-out;
}

.panel h2 {
    margin-top: 0;
    margin-bottom: 0.85rem;
    font-size: 1.15rem;
}

.preset-section {
    margin-bottom: 1rem;
    padding-bottom: 0.9rem;
    border-bottom: 1px solid rgba(217, 214, 207, 0.8);
}

.section-heading {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 0.6rem;
    margin-bottom: 0.7rem;
}

.section-heading h3 {
    margin: 0;
    font-size: 0.95rem;
}

.preset-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0.55rem;
}

.preset-section:not(.is-expanded) .preset-card:nth-child(n + 3) {
    display: none;
}

.preset-card {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 0.2rem;
    padding: 0.8rem;
    border: 1px solid rgba(15, 118, 110, 0.16);
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.96), rgba(245, 248, 247, 0.92));
    color: var(--ink);
    text-align: left;
    transition: transform 0.18s ease, border-color 0.18s ease, box-shadow 0.18s ease;
}

.preset-card strong {
    font-size: 0.92rem;
}

.preset-card span {
    color: var(--muted);
    font-size: 0.78rem;
    font-family: "Space Mono", monospace;
}

.preset-card:hover,
.preset-card.is-active {
    transform: translateY(-1px);
    border-color: rgba(15, 118, 110, 0.55);
    box-shadow: 0 8px 18px rgba(15, 76, 92, 0.12);
}

label {
    display: block;
    margin-bottom: 0.8rem;
    font-size: 0.9rem;
    color: var(--muted);
}

input[type="number"],
input[type="text"],
select {
    margin-top: 0.35rem;
    width: 100%;
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 0.7rem 0.75rem;
    font-size: 0.96rem;
    font-family: "Outfit", "Segoe UI", sans-serif;
    color: var(--ink);
    background: #fff;
}

input:focus,
select:focus,
button:focus {
    outline: 2px solid rgba(15, 118, 110, 0.4);
    outline-offset: 1px;
}

.field-row {
    display: grid;
    gap: 0.6rem;
}

.two-col {
    grid-template-columns: repeat(2, minmax(0, 1fr));
}

.quick-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 0.45rem;
    margin-bottom: 0.8rem;
}

.chip {
    border: 1px dashed #ad9f7f;
    background: #fff8e8;
    color: #7d5a1f;
    border-radius: 999px;
    padding: 0.42rem 0.75rem;
    font-size: 0.84rem;
}

.inline-controls {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0.8rem;
}

.toggle {
    margin: 0;
    display: flex;
    align-items: center;
    gap: 0.45rem;
}

.toggle input {
    margin: 0;
}

.text-action {
    border: 0;
    background: transparent;
    color: var(--accent-strong);
    font-weight: 600;
    cursor: pointer;
}

input[type="color"] {
    margin-top: 0.35rem;
    width: 100%;
    min-height: 42px;
    border: 1px solid var(--border);
    border-radius: 10px;
    background: #fff;
    padding: 0.25rem;
}

.quality {
    display: flex;
    flex-direction: column;
    justify-content: center;
}

input[type="range"] {
    width: 100%;
    accent-color: var(--accent);
}

#qualityOutput {
    font-family: "Space Mono", monospace;
    font-size: 0.84rem;
    color: var(--accent-strong);
}

.cta-row,
.type_and_download_image {
    display: flex;
    flex-wrap: wrap;
    gap: 0.65rem;
}

button {
    border: 0;
    border-radius: 12px;
    padding: 0.72rem 0.95rem;
    font-size: 0.94rem;
    font-weight: 600;
    cursor: pointer;
    font-family: "Outfit", "Segoe UI", sans-serif;
}

.gen,
.download {
    background: linear-gradient(135deg, #0f766e, #0f4c5c);
    color: #fff;
}

.secondary {
    border: 1px solid var(--border);
    background: var(--secondary);
    color: #60451d;
}

.preview-panel {
    display: flex;
    flex-direction: column;
    gap: 0.85rem;
}

.preview-header {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    gap: 0.6rem;
}

.meta {
    margin: 0;
    color: var(--muted);
    font-family: "Space Mono", monospace;
    font-size: 0.79rem;
}

.result {
    border: 2px dashed #d4cbb8;
    border-radius: 14px;
    padding: 0.75rem;
    min-height: 260px;
    display: flex;
    justify-content: center;
    align-items: center;
    background-image: linear-gradient(45deg, #f8f5ed 25%, transparent 25%),
        linear-gradient(-45deg, #f8f5ed 25%, transparent 25%),
        linear-gradient(45deg, transparent 75%, #f8f5ed 75%),
        linear-gradient(-45deg, transparent 75%, #f8f5ed 75%);
    background-size: 22px 22px;
    background-position: 0 0, 0 11px, 11px -11px, -11px 0;
}

canvas.block {
    max-width: 100%;
    height: auto;
    border-radius: 8px;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.25);
}

.error {
    margin: 0;
    color: var(--danger);
    min-height: 1.2rem;
    font-size: 0.92rem;
}

button:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

@keyframes fade-up {
    from {
        opacity: 0;
        transform: translateY(8px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes slide-in {
    from {
        opacity: 0;
        transform: translateY(-8px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes float {
    0%,
    100% {
        transform: translate(0, 0);
    }
    50% {
        transform: translate(14px, -10px);
    }
}

@media screen and (max-width: 950px) {
    .app-grid {
        grid-template-columns: 1fr;
    }
}

@media screen and (max-width: 560px) {
    .app-shell {
        padding: 1.3rem 0.8rem 1.6rem;
    }

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

    .preset-section:not(.is-expanded) .preset-card:nth-child(n + 2) {
        display: none;
    }

    .two-col {
        grid-template-columns: 1fr;
    }

    .inline-controls {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.5rem;
    }
}