:root {
    color-scheme: light;
    --background: #f4f7f6;
    --surface: #ffffff;
    --surface-soft: #eef5f3;
    --text: #17211f;
    --muted: #66736f;
    --border: #d5e0dd;
    --primary: #0f766e;
    --primary-strong: #115e59;
    --danger: #b42318;
    --radius: 8px;
    --soft-shadow: 0 14px 30px rgba(31, 41, 55, 0.14);
    --button-shadow: 0 8px 18px rgba(15, 118, 110, 0.24);
    --card-shadow: 0 10px 24px rgba(31, 41, 55, 0.1);
    font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* {
    box-sizing: border-box;
}

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

body.is-drop-active {
    overflow: hidden;
}

button,
input,
select {
    font: inherit;
}

button {
    min-height: 36px;
    border: 0;
    border-radius: var(--radius);
    cursor: pointer;
}

button:disabled {
    cursor: not-allowed;
    opacity: 0.55;
}

.is-attention-target {
    position: relative;
    z-index: 1;
    animation: attention-border 1.05s ease-in-out infinite;
}

.toolkit-shell {
    width: min(100%, 1120px);
    margin: 0 auto;
    padding: 0 20px 20px;
}

.site-header {
    position: static;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    width: 100vw;
    margin: 0 calc(50% - 50vw);
    padding: 14px max(18px, calc((100vw - 1120px) / 2 + 18px));
    background: rgba(255, 255, 255, 0.94);
    border-bottom: 1px solid var(--border);
    box-shadow: 0 10px 24px rgba(31, 41, 55, 0.08);
    backdrop-filter: blur(12px);
}

.brand-link,
.site-nav {
    display: flex;
    align-items: center;
}

.brand-link {
    gap: 10px;
    color: #102033;
    font-size: 17px;
    font-weight: 800;
    text-decoration: none;
}

.brand-logo {
    border-radius: var(--radius);
    box-shadow: 0 8px 18px rgba(5, 25, 77, 0.18);
}

.site-nav {
    flex-wrap: wrap;
    justify-content: flex-end;
    gap: 14px;
    font-size: 14px;
    font-weight: 700;
}

.site-nav a {
    color: var(--muted);
    text-decoration: none;
}

.site-nav a:hover {
    color: #075f9d;
}

.toolkit-header {
    display: grid;
    gap: 8px;
    min-height: 150px;
    width: 100vw;
    margin: 0 calc(50% - 50vw);
    padding: calc(env(safe-area-inset-top, 0px) + 38px) max(32px, calc((100vw - 1120px) / 2 + 32px)) 66px;
    background: linear-gradient(180deg, #1185c2 0%, #075f9d 46%, #05194d 100%);
    box-shadow: 0 16px 34px rgba(5, 25, 77, 0.26);
    color: #ffffff;
}

.toolkit-header h1,
.toolkit-header p {
    margin: 0;
}

.toolkit-header h1 {
    font-size: 34px;
    line-height: 1.12;
}

.toolkit-header p {
    max-width: 720px;
    color: rgba(255, 255, 255, 0.88);
}

.eyebrow {
    color: var(--primary);
    font-size: 13px;
    font-weight: 750;
    text-transform: uppercase;
}

.toolkit-controls {
    position: sticky;
    top: 0;
    z-index: 20;
    display: grid;
    grid-template-columns: minmax(180px, 1fr) minmax(170px, 1fr) minmax(150px, 0.8fr) auto auto auto;
    gap: 8px;
    align-items: end;
    margin-top: -44px;
    padding: 8px;
    background: rgba(255, 255, 255, 0.96);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    box-shadow: var(--soft-shadow);
    backdrop-filter: blur(10px);
}

.field {
    display: grid;
    gap: 4px;
}

.field span {
    color: var(--text);
    font-size: 13px;
    font-weight: 700;
}

.field input,
.field select {
    width: 100%;
    min-height: 36px;
    padding: 7px 9px;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    background: #ffffff;
    color: var(--text);
    font-size: 13px;
}

.field input.is-invalid {
    border-color: var(--danger);
    box-shadow: 0 0 0 2px rgba(180, 35, 24, 0.12);
}

.field input.is-attention-target {
    border-color: #f59e0b;
    background: #fffaf0;
}

.visually-hidden {
    position: absolute;
    width: 1px;
    height: 1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
}

.file-picker-button {
    display: inline-grid;
    place-items: center;
    min-height: 36px;
    padding: 7px 10px;
    border: 1px solid var(--primary);
    border-radius: var(--radius);
    background: var(--primary);
    color: #ffffff;
    box-shadow: var(--button-shadow);
    font-size: 13px;
    font-weight: 700;
    cursor: pointer;
}

.file-picker-button.is-attention-target {
    border-color: #f59e0b;
    background: #0b8f86;
}

.primary-button {
    padding: 7px 10px;
    border: 1px solid transparent;
    background: var(--primary);
    color: #ffffff;
    box-shadow: var(--button-shadow);
    font-size: 13px;
}

.primary-button:hover:not(:disabled) {
    background: var(--primary-strong);
}

.secondary-button {
    width: fit-content;
    padding: 7px 10px;
    border: 1px solid #1d4ed8;
    background: #1d4ed8;
    color: #ffffff;
    font-size: 13px;
    box-shadow: 0 8px 18px rgba(29, 78, 216, 0.32);
}

.secondary-button:disabled {
    border-color: #bfdbfe;
    background: #dbeafe;
    color: #477098;
    opacity: 1;
    box-shadow: 0 6px 14px rgba(59, 130, 246, 0.12);
}

.secondary-button:hover:not(:disabled) {
    background: #1e40af;
}

.danger-button {
    min-height: 36px;
    padding: 7px 10px;
    background: #fff1f0;
    border: 1px solid #f3b4ad;
    color: var(--danger);
    font-size: 13px;
    box-shadow: 0 8px 18px rgba(180, 35, 24, 0.12);
}

.is-hidden {
    display: none !important;
}

.status {
    grid-column: 1 / -1;
    margin: 0;
    color: var(--muted);
    font-size: 12px;
}

.status[data-tone="error"] {
    color: var(--danger);
}

.preview-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 12px;
    margin-top: 12px;
}

.preview-panel {
    display: grid;
    align-content: start;
    gap: 10px;
    padding: 12px;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    box-shadow: var(--card-shadow);
}

.crop-editor {
    display: grid;
    gap: 12px;
}

.crop-frame {
    display: grid;
    place-items: center;
    overflow: hidden;
    width: min(100%, 520px);
    margin: 0 auto;
    touch-action: none;
    background: #ffffff;
    border: 2px solid var(--primary);
    border-radius: 0;
    cursor: grab;
}

.crop-frame:active {
    cursor: grabbing;
}

.crop-frame img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transform-origin: center;
    user-select: none;
    pointer-events: none;
}

.editor-tools {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 12px;
    align-items: end;
}

.compact-field {
    min-width: 0;
}

.image-gallery {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
    gap: 12px;
}

.preview-panel:first-child .image-gallery {
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
}

.image-card {
    display: grid;
    gap: 8px;
    min-width: 0;
    padding: 0;
    background: transparent;
    color: inherit;
    text-align: left;
}

.image-editor-card {
    padding: 8px;
    background: var(--surface-soft);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    box-shadow: var(--card-shadow);
}

.image-editor-tools {
    grid-template-columns: minmax(0, 1fr) auto;
}

.editor-button-row {
    display: flex;
    gap: 6px;
}

.image-preview-mode .editor-button-row {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 40px;
    align-items: center;
}

.image-preview-mode [data-role="edit-image-button"] {
    width: 100%;
    min-width: 0;
    background: #0f766e;
    border-color: #0f766e;
    color: #ffffff;
    font-weight: 700;
}

.image-preview-mode [data-role="edit-image-button"]:hover {
    background: #115e59;
}

.icon-button {
    display: inline-grid;
    place-items: center;
    width: 36px;
    min-width: 36px;
    padding: 0;
}

.icon-button svg {
    width: 18px;
    height: 18px;
    fill: currentColor;
}

.global-filter-panel,
.advanced-panel {
    display: grid;
    gap: 8px;
    padding: 8px;
    background: #f8fbfa;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    box-shadow: 0 8px 18px rgba(31, 41, 55, 0.08);
}

.filter-panel-heading {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 8px;
}

.filter-panel-heading strong {
    font-size: 13px;
}

.filter-panel-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    justify-content: flex-end;
}

.global-filter-controls {
    display: grid;
    gap: 8px;
}

.filter-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 8px;
}

.filter-control {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 64px;
    gap: 6px;
    align-items: center;
}

.filter-control span {
    grid-column: 1 / -1;
    color: var(--text);
    font-size: 12px;
    font-weight: 700;
}

.filter-control input[type="range"] {
    width: 100%;
}

.filter-control input[type="number"] {
    width: 64px;
    min-height: 32px;
    padding: 5px 6px;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    font-size: 12px;
}

.image-card[data-active="true"] .preview-frame {
    border-color: var(--primary);
    box-shadow: 0 0 0 2px rgba(15, 118, 110, 0.18);
}

.preview-frame {
    display: grid;
    place-items: center;
    aspect-ratio: 1;
    min-height: 0;
    overflow: hidden;
    background:
        linear-gradient(45deg, #e7eeeb 25%, transparent 25%),
        linear-gradient(-45deg, #e7eeeb 25%, transparent 25%),
        linear-gradient(45deg, transparent 75%, #e7eeeb 75%),
        linear-gradient(-45deg, transparent 75%, #e7eeeb 75%);
    background-color: #f8fbfa;
    background-position: 0 0, 0 10px, 10px -10px, -10px 0;
    background-size: 20px 20px;
    border: 1px solid var(--border);
    border-radius: 0;
}

.preview-frame img {
    display: block;
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
}

.preview-frame img:not([src]) {
    display: none;
}

.preview-copy {
    display: grid;
    gap: 4px;
}

.preview-copy-with-actions {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: start;
}

.preview-copy-with-actions p {
    grid-column: 1 / -1;
}

.preview-copy-with-actions .danger-button {
    min-height: 32px;
    padding: 6px 9px;
    font-size: 12px;
}

.preview-copy h2,
.preview-copy p {
    margin: 0;
}

.preview-copy h2 {
    font-size: 18px;
}

.preview-copy p {
    color: var(--muted);
}

.image-preview-mode,
.image-edit-mode {
    display: grid;
    gap: 8px;
}

.selected-preview-frame {
    background: #ffffff;
}

.selected-preview-frame img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    user-select: none;
}

.image-card-copy {
    display: grid;
    gap: 3px;
    min-width: 0;
}

.image-card-copy strong,
.image-card-copy span {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.image-card-copy strong {
    color: var(--text);
    font-size: 13px;
}

.image-card-copy span {
    color: var(--muted);
    font-size: 12px;
}

.image-card button {
    min-height: 36px;
    padding: 8px 10px;
    background: #ffffff;
    border: 1px solid var(--border);
    color: var(--primary-strong);
    box-shadow: 0 8px 18px rgba(31, 41, 55, 0.1);
}

.image-card .image-preview-mode [data-role="edit-image-button"] {
    background: #0f766e;
    border-color: #0f766e;
    color: #ffffff;
    box-shadow: var(--button-shadow);
}

.generated-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    justify-content: flex-end;
}

.app-error {
    color: var(--danger);
}

.processing-toast {
    position: fixed;
    top: calc(env(safe-area-inset-top, 0px) + 28px);
    right: calc(env(safe-area-inset-right, 0px) + 24px);
    z-index: 50;
    display: flex;
    gap: 10px;
    align-items: center;
    max-width: min(360px, calc(100vw - 32px));
    padding: 12px 14px;
    background: #ffffff;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    box-shadow: var(--soft-shadow);
    color: var(--text);
    font-size: 14px;
    font-weight: 700;
}

.processing-spinner {
    width: 18px;
    height: 18px;
    border: 3px solid #d7eeea;
    border-top-color: var(--primary);
    border-radius: 999px;
    animation: spin 0.8s linear infinite;
}

.drop-overlay {
    position: fixed;
    inset: 0;
    z-index: 80;
    display: grid;
    place-items: center;
    padding: 24px;
    background: rgba(5, 25, 77, 0.72);
    backdrop-filter: blur(6px);
}

.drop-overlay-card {
    display: grid;
    place-items: center;
    gap: 8px;
    width: min(520px, 100%);
    min-height: 220px;
    padding: 28px;
    background: rgba(255, 255, 255, 0.96);
    border: 3px dashed #22d3ee;
    border-radius: 8px;
    box-shadow: 0 22px 60px rgba(2, 10, 62, 0.34);
    color: #05194d;
    text-align: center;
}

.drop-overlay-card strong {
    font-size: 26px;
    line-height: 1.15;
}

.drop-overlay-card span {
    color: var(--muted);
    font-size: 15px;
    font-weight: 700;
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

@keyframes attention-border {
    0% {
        border-color: #f59e0b;
        outline: 3px solid rgba(245, 158, 11, 0.58);
        outline-offset: 2px;
        box-shadow: 0 0 0 0 rgba(245, 158, 11, 0.36), 0 10px 22px rgba(245, 158, 11, 0.22);
    }

    50% {
        border-color: #22d3ee;
        outline: 5px solid rgba(34, 211, 238, 0.42);
        outline-offset: 4px;
        box-shadow: 0 0 0 8px rgba(34, 211, 238, 0.18), 0 12px 28px rgba(6, 182, 212, 0.26);
    }

    100% {
        border-color: #f59e0b;
        outline: 3px solid rgba(245, 158, 11, 0.58);
        outline-offset: 2px;
        box-shadow: 0 0 0 0 rgba(245, 158, 11, 0.36), 0 10px 22px rgba(245, 158, 11, 0.22);
    }
}

@media (max-width: 780px) {
    .toolkit-shell {
        padding: 0 8px 8px;
    }

    .site-header {
        align-items: flex-start;
        flex-direction: column;
        gap: 8px;
        padding: 10px 12px;
    }

    .site-nav {
        justify-content: flex-start;
        gap: 10px;
        font-size: 13px;
    }

    .toolkit-header {
        gap: 4px;
        min-height: 158px;
        margin: 0 calc(50% - 50vw);
        padding: calc(env(safe-area-inset-top, 0px) + 42px) 24px 54px;
    }

    .toolkit-controls,
    .preview-panel {
        padding: 8px;
    }

    .preview-grid,
    .image-gallery,
    .editor-tools {
        gap: 8px;
    }

    .toolkit-controls {
        grid-template-columns: repeat(3, minmax(0, 1fr));
        gap: 6px;
        margin-top: -38px;
    }

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

    .toolkit-controls .status {
        grid-column: 1 / -1;
    }

    .toolkit-controls .primary-button {
        grid-column: 1 / 2;
    }

    .toolkit-controls .secondary-button {
        width: 100%;
    }

    .field {
        gap: 4px;
    }

    .field span {
        font-size: 12px;
    }

    .field input,
    .field select,
    .file-picker-button,
    .primary-button,
    .secondary-button,
    .danger-button {
        min-height: 38px;
        padding: 7px 8px;
        font-size: 13px;
    }

    .toolkit-header h1 {
        font-size: 24px;
    }

    .toolkit-header p {
        font-size: 14px;
    }

    .editor-tools {
        grid-template-columns: 1fr;
    }

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

    .image-gallery {
        grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
    }

    .preview-panel:first-child .image-gallery {
        grid-template-columns: 1fr;
    }

    .toolkit-controls .primary-button,
    .toolkit-controls .secondary-button {
        width: 100%;
        min-width: 0;
    }

    .generated-actions {
        display: grid;
        grid-template-columns: 1fr 1fr;
    }

    .generated-actions .secondary-button {
        width: 100%;
    }

    .processing-toast {
        top: calc(env(safe-area-inset-top, 0px) + 24px);
        right: calc(env(safe-area-inset-right, 0px) + 14px);
        left: calc(env(safe-area-inset-left, 0px) + 14px);
        max-width: none;
        font-size: 13px;
    }
}

@media (max-width: 430px) {
    .toolkit-controls {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .toolkit-controls .field:first-child {
        grid-column: 1 / -1;
    }

    .toolkit-controls .status {
        grid-column: 1 / -1;
    }

    .toolkit-controls .primary-button {
        grid-column: 1 / 2;
    }

    .toolkit-controls .secondary-button {
        grid-column: 2 / 3;
    }
}