/* app.css, 2026-04-06, @Arnangel-UA */
:root {
    --bg-main: #14151c;
    --bg-sidebar: #1e2130;
    --bg-card: #1c1f2a;
    --bg-input: #252836;
    --text: #e8e9ed;
    --text-muted: #8b90a0;
    --accent: #7c3aed;
    --accent-hover: #6d28d9;
    --btn-secondary: #34384a;
    --btn-secondary-hover: #3d4258;
    --border-soft: #2a2e3d;
}

* {
    box-sizing: border-box;
}

html, body {
    margin: 0;
    min-height: 100%;
    font-family: "Segoe UI", system-ui, sans-serif;
    background: var(--bg-main);
    color: var(--text);
}

.qr-root {
    min-height: 100vh;
}

.qr-layout {
    display: flex;
    min-height: 100vh;
    max-width: 1200px;
    margin: 0 auto;
}

.qr-sidebar {
    width: 300px;
    flex-shrink: 0;
    background: var(--bg-sidebar);
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

.qr-scroll {
    flex: 1;
    overflow-y: auto;
    padding-bottom: 8px;
}

.qr-head {
    padding: 24px 20px 8px;
}

.qr-head-title {
    margin: 0;
    font-size: 22px;
    font-weight: 700;
}

.qr-head-sub {
    margin: 4px 0 0;
    font-size: 12px;
    color: var(--text-muted);
}

.qr-step {
    padding: 18px 20px 0;
}

.qr-step-num {
    font-size: 11px;
    font-weight: 700;
    color: var(--accent);
}

.qr-step-title {
    font-size: 13px;
    margin: 2px 0 8px;
}

.qr-hint {
    margin: 0 0 4px;
    font-size: 11px;
    color: var(--text-muted);
}

.qr-hint-small {
    font-size: 10px;
    line-height: 1.4;
    margin-top: 4px;
}

.qr-csv-row {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 4px;
}

.qr-csv-label {
    flex: 1;
    min-width: 0;
    word-break: break-all;
}

.qr-csv-clear {
    border: none;
    background: transparent;
    color: #e74c3c;
    cursor: pointer;
    font-size: 14px;
    padding: 4px 8px;
    border-radius: 6px;
}

.qr-csv-clear:hover {
    background: #662020;
}

.qr-btn-secondary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    min-height: 36px;
    padding: 0 12px;
    border: none;
    border-radius: 10px;
    background: var(--btn-secondary);
    color: var(--text);
    font-size: 13px;
    cursor: pointer;
}

.qr-btn-secondary:hover {
    background: var(--btn-secondary-hover);
}

.qr-btn-file {
    position: relative;
    overflow: hidden;
    cursor: pointer;
}

.qr-btn-file input[type="file"] {
    position: absolute;
    inset: 0;
    opacity: 0;
    cursor: pointer;
}

.qr-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    padding: 4px 0;
}

.qr-row-block {
    flex-direction: column;
    align-items: stretch;
}

.qr-label {
    font-size: 13px;
    color: var(--text-muted);
}

.qr-input {
    width: 56px;
    height: 32px;
    border: none;
    border-radius: 8px;
    background: var(--bg-input);
    color: var(--text);
    padding: 0 8px;
    text-align: right;
}

.qr-seg {
    display: flex;
    width: 100%;
    margin-top: 6px;
    border-radius: 8px;
    overflow: hidden;
    background: var(--bg-input);
}

.qr-seg-btn {
    flex: 1;
    min-height: 32px;
    border: none;
    background: var(--btn-secondary);
    color: var(--text);
    font-size: 12px;
    cursor: pointer;
}

.qr-seg-btn.is-active {
    background: var(--accent);
}

.qr-seg-btn.is-active:hover {
    background: var(--accent-hover);
}

.qr-colors {
    display: flex;
    gap: 8px;
    margin-bottom: 8px;
}

.qr-color-btn {
    flex: 1;
    min-width: 0;
    height: 32px;
    border: none;
    border-radius: 8px;
    font-size: 12px;
    cursor: pointer;
    color: #fff;
}

#btnColor1 {
    background: #000;
}

#btnColor2 {
    background: #7c3aed;
}

.qr-check {
    display: flex;
    align-items: center;
    gap: 8px;
    margin: 0 0 6px;
    font-size: 12px;
    cursor: pointer;
}

.qr-check input {
    accent-color: var(--accent);
    width: 16px;
    height: 16px;
}

.qr-grad-label {
    margin: 0 0 4px;
}

.qr-select {
    width: 100%;
    height: 32px;
    border-radius: 8px;
    border: none;
    background: var(--bg-input);
    color: var(--text);
    padding: 0 10px;
    font-size: 12px;
}

.qr-select-wide {
    height: 36px;
    font-size: 13px;
    border-radius: 10px;
}

.qr-sidebar-bottom {
    padding: 24px 20px;
    border-top: 1px solid var(--border-soft);
}

.qr-btn-accent {
    width: 100%;
    min-height: 48px;
    border: none;
    border-radius: 12px;
    background: var(--accent);
    color: var(--text);
    font-size: 15px;
    font-weight: 700;
    cursor: pointer;
}

.qr-btn-accent:hover {
    background: var(--accent-hover);
}

.qr-main {
    flex: 1;
    min-width: 0;
    padding: 6px 28px 16px;
    position: relative;
}

.qr-lang {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: 8px;
    margin-bottom: 8px;
    font-size: 11px;
    color: var(--text-muted);
}

.qr-lang-select {
    width: 118px;
    height: 28px;
    font-size: 11px;
}

.qr-body-pad {
    padding-top: 8px;
}

.qr-card {
    background: var(--bg-card);
    border: 1px solid var(--border-soft);
    border-radius: 16px;
}

.qr-preview-card {
    padding: 14px 16px 16px;
    margin-bottom: 16px;
}

.qr-card-title {
    margin: 0 0 6px;
    font-size: 16px;
    font-weight: 700;
}

.qr-preview-img-wrap {
    min-height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.qr-preview-img {
    max-width: 260px;
    max-height: 260px;
    image-rendering: pixelated;
}

.qr-links-title {
    margin: 0 0 4px;
    font-size: 16px;
    font-weight: 700;
}

.qr-links-card {
    margin-top: 12px;
    padding: 14px;
}

.qr-textarea {
    width: 100%;
    min-height: 220px;
    resize: vertical;
    border: none;
    border-radius: 12px;
    background: var(--bg-input);
    color: var(--text);
    font-family: Consolas, monospace;
    font-size: 13px;
    padding: 12px;
    line-height: 1.45;
}

.qr-textarea:focus {
    outline: 2px solid var(--accent);
    outline-offset: 0;
}

/* Modal */
.qr-modal {
    position: fixed;
    inset: 0;
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
}

.qr-modal[hidden] {
    display: none !important;
}

.qr-modal-backdrop {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.55);
}

.qr-modal-panel {
    position: relative;
    z-index: 1;
    width: min(360px, 92vw);
    max-height: 92vh;
    overflow-y: auto;
    background: var(--bg-card);
    border-radius: 16px;
    padding: 16px 20px 20px;
    border: 1px solid var(--border-soft);
}

.qr-modal-title {
    margin: 0 0 8px;
    font-size: 16px;
}

.qr-wheel {
    display: block;
    margin: 8px auto;
    border-radius: 8px;
    cursor: crosshair;
}

.qr-hex-label {
    text-align: center;
    font-family: Consolas, monospace;
    font-size: 15px;
    font-weight: 700;
    margin: 8px 0;
}

.qr-modal-row {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 12px;
}

.qr-range {
    flex: 1;
    accent-color: var(--accent);
}

.qr-modal-actions {
    display: flex;
    justify-content: flex-end;
    gap: 8px;
    margin-top: 12px;
}

.qr-modal-actions .qr-btn-secondary {
    width: 100px;
    min-height: 36px;
}

.qr-modal-actions .qr-btn-accent {
    width: 100px;
    min-height: 36px;
    font-size: 13px;
}

@media (max-width: 900px) {
    .qr-layout {
        flex-direction: column;
    }

    .qr-sidebar {
        width: 100%;
        min-height: 0;
    }
}