:root {
    --bg:
        radial-gradient(circle at top left, rgba(0, 56, 255, 0.08), transparent 30%),
        radial-gradient(circle at 88% 10%, rgba(181, 63, 45, 0.1), transparent 24%),
        linear-gradient(180deg, #fcfcf9 0%, #f4f2ec 100%);
    --paper: rgba(255, 255, 255, 0.92);
    --line: rgba(20, 31, 52, 0.1);
    --text: #18212f;
    --muted: #5f6878;
    --accent: #0d58db;
    --accent-strong: #083d98;
    --warm-line: rgba(181, 63, 45, 0.16);
    --warm-accent: #9b321f;
    --shadow: 0 24px 70px rgba(24, 33, 47, 0.11);
}

* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    min-height: 100vh;
    color: var(--text);
    background: var(--bg);
}

a {
    color: inherit;
}

button,
input,
textarea {
    font: inherit;
}

main {
    width: min(1240px, calc(100% - 32px));
    margin: 0 auto;
    padding: 26px 0 72px;
}

.hero {
    display: grid;
    grid-template-columns: minmax(0, 1.1fr) minmax(320px, 390px);
    gap: 24px;
    align-items: stretch;
}

.hero-main,
.hero-side,
.panel,
.result-shell {
    background: var(--paper);
    border: 1px solid var(--line);
    border-radius: 30px;
    box-shadow: var(--shadow);
    backdrop-filter: blur(16px);
}

.hero-main {
    padding: 34px;
}

.eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 10px 16px;
    border-radius: 999px;
    background: rgba(13, 88, 219, 0.08);
    color: var(--accent);
    font-size: 0.82rem;
    font-weight: 700;
    letter-spacing: 0.12em;
    text-transform: uppercase;
}

h1 {
    margin: 18px 0 18px;
    font-size: clamp(2.2rem, 5vw, 4.5rem);
    line-height: 1.02;
    letter-spacing: -0.05em;
}

.hero-lead {
    margin: 0;
    max-width: 700px;
    color: var(--muted);
    font-size: 1.05rem;
    line-height: 1.82;
}

.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 14px;
    margin-top: 26px;
}

.hero-button,
.generate-button,
.copy-button,
.selection-add button,
.mini-button {
    border: none;
    border-radius: 999px;
    cursor: pointer;
    font-weight: 700;
    transition: transform 160ms ease, box-shadow 160ms ease, opacity 160ms ease;
}

.hero-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 52px;
    padding: 0 22px;
    text-decoration: none;
}

.hero-button:hover,
.hero-button:focus-visible,
.generate-button:hover,
.copy-button:hover,
.selection-add button:hover,
.mini-button:hover {
    transform: translateY(-2px);
}

.hero-button-primary,
.generate-button {
    color: #fff;
    background: linear-gradient(135deg, var(--accent-strong) 0%, var(--accent) 100%);
    box-shadow: 0 18px 30px rgba(13, 88, 219, 0.22);
}

.hero-button-secondary {
    color: var(--text);
    background: rgba(255, 255, 255, 0.9);
    border: 1px solid rgba(24, 33, 47, 0.12);
}

.hero-meta {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 14px;
    margin-top: 30px;
}

.meta-card {
    padding: 18px;
    border-radius: 20px;
    background: rgba(255, 255, 255, 0.72);
    border: 1px solid rgba(24, 33, 47, 0.08);
}

.meta-card strong {
    display: block;
    margin-bottom: 10px;
    font-size: 0.94rem;
}

.meta-card span {
    color: var(--muted);
    line-height: 1.66;
    font-size: 0.94rem;
}

.hero-side {
    padding: 28px;
    display: grid;
    gap: 16px;
}

.side-chip,
.preset-tag,
.pick-combo {
    display: inline-flex;
    align-items: center;
    padding: 8px 14px;
    border-radius: 999px;
    font-weight: 700;
}

.side-chip {
    background: rgba(155, 50, 31, 0.08);
    color: var(--warm-accent);
    font-size: 0.8rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.hero-side h2,
.section-head-copy h2 {
    margin: 0;
    line-height: 1.22;
}

.hero-side h2 {
    font-size: 1.65rem;
}

.hero-side p,
.section-head-copy p,
.rail-card p,
.rail-card li,
.result-stat span,
.pick-card p {
    color: var(--muted);
    line-height: 1.74;
}

.hero-side-list,
.rail-card ul {
    display: grid;
    gap: 10px;
    margin: 0;
}

.hero-side-list {
    padding: 0;
    list-style: none;
}

.hero-side-list li,
.notes-list div {
    padding: 14px 16px;
    border-radius: 18px;
    background: rgba(246, 239, 225, 0.72);
    border: 1px solid var(--warm-line);
    line-height: 1.68;
    color: #4d3a31;
}

.tool-layout {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 320px;
    gap: 24px;
    align-items: start;
    margin-top: 26px;
}

.panel,
.result-shell {
    overflow: hidden;
}

.panel-body,
.result-body {
    padding: 30px;
    display: grid;
    gap: 28px;
}

.section-head {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 16px;
    flex-wrap: wrap;
}

.section-head-copy {
    display: grid;
    gap: 8px;
}

.section-head-copy h2 {
    font-size: 1.55rem;
}

.status-pill {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    min-height: 38px;
    padding: 0 16px;
    border-radius: 999px;
    background: rgba(13, 88, 219, 0.08);
    color: var(--accent);
    font-size: 0.84rem;
    font-weight: 700;
}

.status-pill.warn {
    background: rgba(170, 69, 31, 0.1);
    color: #aa451f;
}

.preset-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 16px;
}

.preset-card {
    border: 1px solid rgba(24, 33, 47, 0.08);
    border-radius: 24px;
    background: rgba(255, 255, 255, 0.78);
    padding: 22px;
    text-align: left;
}

.preset-card.is-active {
    border-color: rgba(13, 88, 219, 0.48);
    box-shadow: inset 0 0 0 1px rgba(13, 88, 219, 0.16), 0 16px 30px rgba(13, 88, 219, 0.12);
    background: linear-gradient(180deg, rgba(238, 244, 255, 0.92) 0%, rgba(255, 255, 255, 0.94) 100%);
}

.preset-tag {
    background: rgba(13, 88, 219, 0.08);
    color: var(--accent);
    font-size: 0.76rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.preset-card h3,
.matrix-card h3,
.pick-card h3 {
    margin: 14px 0 10px;
}

.preset-card p {
    margin: 0;
    color: var(--muted);
    line-height: 1.7;
}

.preset-list {
    display: grid;
    gap: 8px;
    margin-top: 16px;
}

.preset-list span {
    color: #425066;
    font-size: 0.9rem;
    line-height: 1.55;
}

.context-field {
    display: grid;
    gap: 10px;
}

.context-field label,
.suggestion-wrap strong,
.summary-bit strong,
.result-stat strong,
.idea-item strong {
    font-weight: 700;
}

.context-field textarea,
.selection-add input,
.prompt-preview {
    width: 100%;
    border: 1px solid rgba(24, 33, 47, 0.12);
    border-radius: 18px;
    background: #fff;
    color: var(--text);
    transition: border-color 160ms ease, box-shadow 160ms ease;
}

.context-field textarea,
.prompt-preview {
    min-height: 150px;
    padding: 16px 18px;
    resize: vertical;
    line-height: 1.72;
}

.context-field textarea:focus,
.selection-add input:focus,
.prompt-preview:focus {
    outline: none;
    border-color: rgba(13, 88, 219, 0.42);
    box-shadow: 0 0 0 4px rgba(13, 88, 219, 0.08);
}

.selection-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 18px;
}

.selection-card {
    display: grid;
    gap: 16px;
    padding: 22px;
    border-radius: 26px;
    background: rgba(255, 255, 255, 0.82);
    border: 1px solid rgba(24, 33, 47, 0.08);
}

.selection-top,
.selection-actions,
.generate-actions,
.selection-add {
    display: flex;
    gap: 10px;
}

.selection-top,
.generate-row {
    justify-content: space-between;
    align-items: flex-start;
    gap: 16px;
    flex-wrap: wrap;
}

.selection-title strong {
    display: block;
    font-size: 1.14rem;
    margin-bottom: 8px;
}

.selection-title span,
.generate-copy,
.summary-bit span,
.result-lead {
    color: var(--muted);
    line-height: 1.68;
}

.mini-button {
    min-height: 38px;
    padding: 0 14px;
    background: rgba(24, 33, 47, 0.06);
    color: var(--text);
}

.mini-button.accent {
    background: rgba(13, 88, 219, 0.1);
    color: var(--accent);
}

.selected-list,
.suggestion-list {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.selected-item,
.suggestion-chip {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    min-height: 40px;
    padding: 0 14px;
    border-radius: 999px;
    font-size: 0.92rem;
}

.selected-item {
    background: rgba(13, 88, 219, 0.1);
    color: var(--accent-strong);
    border: 1px solid rgba(13, 88, 219, 0.18);
}

.selected-item button {
    border: none;
    background: transparent;
    color: inherit;
    cursor: pointer;
    padding: 0;
}

.empty-selected,
.summary-bit,
.idea-item {
    padding: 14px 16px;
    border-radius: 18px;
}

.empty-selected,
.summary-bit,
.idea-item,
.summary-bit {
    background: rgba(24, 33, 47, 0.04);
}

.empty-selected {
    color: var(--muted);
    line-height: 1.65;
}

.selection-add input {
    min-height: 48px;
    padding: 0 16px;
}

.selection-add button,
.generate-button,
.copy-button {
    min-height: 48px;
    padding: 0 18px;
}

.selection-add button {
    min-width: 88px;
    background: linear-gradient(135deg, var(--warm-accent) 0%, #c45737 100%);
    color: #fff;
    box-shadow: 0 14px 24px rgba(170, 69, 31, 0.18);
}

.suggestion-wrap {
    display: grid;
    gap: 12px;
}

.suggestion-list {
    max-height: 260px;
    overflow-y: auto;
    padding-right: 6px;
}

.suggestion-chip {
    border: 1px solid rgba(24, 33, 47, 0.1);
    background: rgba(255, 255, 255, 0.86);
    color: #334158;
    text-align: left;
}

.suggestion-chip.is-active {
    background: rgba(13, 88, 219, 0.1);
    border-color: rgba(13, 88, 219, 0.24);
    color: var(--accent-strong);
}

.generate-row {
    display: flex;
    padding-top: 6px;
}

.generate-copy {
    max-width: 620px;
}

.side-rail {
    display: grid;
    gap: 16px;
    position: sticky;
    top: 92px;
}

.rail-card {
    padding: 24px;
    border-radius: 26px;
    background: rgba(255, 255, 255, 0.9);
    border: 1px solid rgba(24, 33, 47, 0.08);
    box-shadow: var(--shadow);
}

.rail-card h3 {
    margin: 0 0 10px;
    font-size: 1.08rem;
}

.summary-bits,
.notes-list,
.pick-grid,
.matrix-grid,
.result-grid {
    display: grid;
    gap: 14px;
}

.result-shell {
    display: none;
    margin-top: 26px;
}

.result-shell.is-visible {
    display: block;
}

.result-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
}

.result-stat {
    padding: 18px;
    border-radius: 22px;
    background: rgba(255, 255, 255, 0.84);
    border: 1px solid rgba(24, 33, 47, 0.08);
}

.result-stat strong {
    display: block;
    margin-bottom: 8px;
    font-size: 0.86rem;
    color: var(--muted);
    text-transform: uppercase;
    letter-spacing: 0.08em;
}

.pick-grid,
.matrix-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
}

.pick-card {
    padding: 22px;
    border-radius: 24px;
    background: linear-gradient(180deg, rgba(238, 244, 255, 0.92) 0%, rgba(255, 255, 255, 0.98) 100%);
    border: 1px solid rgba(13, 88, 219, 0.14);
}

.pick-combo {
    background: rgba(13, 88, 219, 0.1);
    color: var(--accent-strong);
    font-size: 0.82rem;
}

.matrix-card {
    display: grid;
    gap: 16px;
    padding: 22px;
    border-radius: 26px;
    background: rgba(255, 255, 255, 0.9);
    border: 1px solid rgba(24, 33, 47, 0.08);
}

.matrix-sub {
    color: var(--muted);
    font-size: 0.92rem;
}

.idea-list {
    display: grid;
    gap: 12px;
}

.idea-item {
    border: 1px solid rgba(24, 33, 47, 0.06);
}

.idea-item strong {
    display: block;
    margin-bottom: 8px;
    font-size: 1rem;
    line-height: 1.45;
}

.idea-row {
    margin-top: 8px;
    color: var(--muted);
    line-height: 1.66;
    font-size: 0.92rem;
}

.idea-row b {
    color: var(--text);
}

.loading-box,
.error-box {
    display: none;
    padding: 18px 20px;
    border-radius: 20px;
    line-height: 1.7;
}

.loading-box.is-visible {
    display: block;
    background: rgba(13, 88, 219, 0.08);
    color: var(--accent-strong);
}

.error-box.is-visible {
    display: block;
    background: rgba(170, 69, 31, 0.1);
    color: #aa451f;
}

code {
    padding: 2px 8px;
    border-radius: 999px;
    background: rgba(24, 33, 47, 0.06);
    font-family: "Courier New", monospace;
    font-size: 0.92em;
}

@media (max-width: 1080px) {
    .hero,
    .tool-layout,
    .selection-grid,
    .result-grid,
    .pick-grid,
    .matrix-grid,
    .preset-grid,
    .hero-meta {
        grid-template-columns: 1fr;
    }

    .side-rail {
        position: static;
    }
}

@media (max-width: 700px) {
    main {
        width: min(100%, calc(100% - 24px));
        padding-bottom: 56px;
    }

    .hero-main,
    .hero-side,
    .panel-body,
    .result-body,
    .rail-card {
        padding-left: 22px;
        padding-right: 22px;
    }

    .hero-actions,
    .generate-row,
    .generate-actions,
    .selection-add,
    .selection-actions {
        flex-direction: column;
        align-items: stretch;
    }

    .hero-button,
    .generate-button,
    .copy-button,
    .selection-add button,
    .mini-button {
        width: 100%;
        justify-content: center;
    }
}