/* ==========================================================================
   SandPhoto - MIUI / HyperOS inspired design system
   Light and dark themes, grouped settings cards, orange accent.
   ========================================================================== */

:root {
    color-scheme: light;

    /* Accent (MIUI signature orange) */
    --miui-accent: #ff6900;
    --miui-accent-strong: #e85f00;
    --miui-accent-soft: rgba(255, 105, 0, 0.10);
    --miui-accent-ring: rgba(255, 105, 0, 0.22);

    /* Surfaces */
    --miui-bg: #f6f6f6;
    --miui-bg-blur: rgba(246, 246, 246, 0.78);
    --miui-card: #ffffff;
    --miui-card-press: #f2f2f3;
    --miui-field: #f4f4f5;
    --miui-segment-bg: #edeeef;
    --miui-segment-thumb: #ffffff;
    --miui-overlay: rgba(0, 0, 0, 0.45);

    /* Text */
    --miui-text: rgba(0, 0, 0, 0.92);
    --miui-text-2: rgba(0, 0, 0, 0.60);
    --miui-text-3: rgba(0, 0, 0, 0.38);
    --miui-text-inverse: #ffffff;

    /* Lines */
    --miui-divider: rgba(0, 0, 0, 0.07);
    --miui-border: rgba(0, 0, 0, 0.12);
    --miui-border-strong: rgba(0, 0, 0, 0.20);

    /* Shape & depth */
    --miui-radius-card: 16px;
    --miui-radius-control: 12px;
    --miui-radius-pill: 999px;
    --miui-shadow-card: 0 1px 2px rgba(0, 0, 0, 0.04);
    --miui-shadow-float: 0 8px 28px rgba(0, 0, 0, 0.10);
    --miui-shadow-accent: 0 6px 18px rgba(255, 105, 0, 0.28);

    /* Danger (destructive actions) */
    --miui-danger: #ff3b30;
    --miui-danger-soft: rgba(255, 59, 48, 0.12);

    /* Status */
    --miui-warning: #b26a00;
    --miui-success: #00b04a;

    --miui-blur: saturate(180%) blur(20px);
    --miui-ease: cubic-bezier(0.32, 0.72, 0, 1);
}

@media (prefers-color-scheme: dark) {
    :root:not([data-theme="light"]) {
        color-scheme: dark;
        --miui-accent: #ff7a1a;
        --miui-accent-strong: #ff6900;
        --miui-accent-soft: rgba(255, 122, 26, 0.16);
        --miui-accent-ring: rgba(255, 122, 26, 0.30);

        --miui-bg: #000000;
        --miui-bg-blur: rgba(0, 0, 0, 0.72);
        --miui-card: #1c1c1e;
        --miui-card-press: #2a2a2c;
        --miui-field: #2c2c2e;
        --miui-segment-bg: #1f1f21;
        --miui-segment-thumb: #48484a;
        --miui-overlay: rgba(0, 0, 0, 0.6);

        --miui-text: rgba(255, 255, 255, 0.94);
        --miui-text-2: rgba(255, 255, 255, 0.60);
        --miui-text-3: rgba(255, 255, 255, 0.38);

        --miui-divider: rgba(255, 255, 255, 0.10);
        --miui-border: rgba(255, 255, 255, 0.16);
        --miui-border-strong: rgba(255, 255, 255, 0.26);

        --miui-shadow-card: none;
        --miui-shadow-float: 0 12px 32px rgba(0, 0, 0, 0.55);
        --miui-shadow-accent: 0 6px 18px rgba(255, 105, 0, 0.24);

        --miui-danger: #ff453a;
        --miui-danger-soft: rgba(255, 69, 58, 0.18);
        --miui-warning: #ffb340;
    }
}

[data-theme="dark"] {
    color-scheme: dark;
    --miui-accent: #ff7a1a;
    --miui-accent-strong: #ff6900;
    --miui-accent-soft: rgba(255, 122, 26, 0.16);
    --miui-accent-ring: rgba(255, 122, 26, 0.30);

    --miui-bg: #000000;
    --miui-bg-blur: rgba(0, 0, 0, 0.72);
    --miui-card: #1c1c1e;
    --miui-card-press: #2a2a2c;
    --miui-field: #2c2c2e;
    --miui-segment-bg: #1f1f21;
    --miui-segment-thumb: #48484a;
    --miui-overlay: rgba(0, 0, 0, 0.6);

    --miui-text: rgba(255, 255, 255, 0.94);
    --miui-text-2: rgba(255, 255, 255, 0.60);
    --miui-text-3: rgba(255, 255, 255, 0.38);

    --miui-divider: rgba(255, 255, 255, 0.10);
    --miui-border: rgba(255, 255, 255, 0.16);
    --miui-border-strong: rgba(255, 255, 255, 0.26);

    --miui-shadow-card: none;
    --miui-shadow-float: 0 12px 32px rgba(0, 0, 0, 0.55);
    --miui-shadow-accent: 0 6px 18px rgba(255, 105, 0, 0.24);

    --miui-danger: #ff453a;
    --miui-danger-soft: rgba(255, 69, 58, 0.18);
    --miui-warning: #ffb340;
}

/* --------------------------------------------------------------------------
   Base
   -------------------------------------------------------------------------- */

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

html {
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: "MiSans", "MiSans VF", "PingFang SC", "HarmonyOS Sans SC",
        "Noto Sans SC", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
        "Helvetica Neue", Arial, sans-serif;
    background: var(--miui-bg);
    color: var(--miui-text);
    min-height: 100vh;
    font-size: 15px;
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
    transition: background-color 0.25s ease, color 0.25s ease;
}

button,
input,
select,
textarea {
    font: inherit;
    color: inherit;
}

button {
    cursor: pointer;
}

svg {
    display: block;
}

::selection {
    background: var(--miui-accent-ring);
}

/* --------------------------------------------------------------------------
   Top app bar (MIUI style, sticky + frosted glass)
   -------------------------------------------------------------------------- */

.miui-appbar {
    position: sticky;
    top: 0;
    z-index: 50;
    background: var(--miui-bg-blur);
    backdrop-filter: var(--miui-blur);
    -webkit-backdrop-filter: var(--miui-blur);
    border-bottom: 1px solid var(--miui-divider);
}

.miui-appbar-inner {
    max-width: 720px;
    margin: 0 auto;
    min-height: 56px;
    padding: 8px 16px;
    display: flex;
    align-items: center;
    gap: 12px;
}

.miui-appbar-title {
    flex: 1;
    min-width: 0;
    text-align: center;
    font-size: 17px;
    font-weight: 600;
    letter-spacing: 0;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.miui-appbar-slot {
    width: 40px;
    height: 40px;
    flex: 0 0 auto;
    display: grid;
    place-items: center;
}

.miui-appbar-badge {
    width: 32px;
    height: 32px;
    border-radius: 10px;
    background: var(--miui-accent);
    color: var(--miui-text-inverse);
    display: grid;
    place-items: center;
    box-shadow: var(--miui-shadow-accent);
}

.miui-icon-btn {
    width: 40px;
    height: 40px;
    border: none;
    border-radius: var(--miui-radius-pill);
    background: transparent;
    color: var(--miui-text-2);
    display: grid;
    place-items: center;
    transition: background-color 0.2s ease, color 0.2s ease, transform 0.12s var(--miui-ease);
}

.miui-icon-btn:hover {
    background: var(--miui-field);
    color: var(--miui-text);
}

.miui-icon-btn:active {
    transform: scale(0.92);
}

.icon-moon {
    display: none;
}

[data-theme="dark"] .icon-sun {
    display: none;
}

[data-theme="dark"] .icon-moon {
    display: block;
}

@media (prefers-color-scheme: dark) {
    :root:not([data-theme="light"]) .icon-sun {
        display: none;
    }

    :root:not([data-theme="light"]) .icon-moon {
        display: block;
    }
}

/* --------------------------------------------------------------------------
   Layout
   -------------------------------------------------------------------------- */

.container {
    max-width: 720px;
    margin: 0 auto;
    padding: 20px 16px 8px;
}

.app-hero {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 18px 4px 22px;
}

.app-hero-icon {
    width: 54px;
    height: 54px;
    flex: 0 0 auto;
    border-radius: 16px;
    background: var(--miui-accent);
    color: var(--miui-text-inverse);
    display: grid;
    place-items: center;
    box-shadow: var(--miui-shadow-accent);
}

.app-hero-text {
    min-width: 0;
}

.app-hero-text h1 {
    font-size: 24px;
    font-weight: 700;
    letter-spacing: 0;
    line-height: 1.25;
}

.app-hero-text p {
    margin-top: 4px;
    font-size: 13px;
    color: var(--miui-text-2);
}

.privacy-pill {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    margin-top: 8px;
    padding: 3px 10px 3px 8px;
    border-radius: var(--miui-radius-pill);
    background: var(--miui-accent-soft);
    color: var(--miui-accent);
    font-size: 12px;
    font-weight: 600;
}

main {
    display: block;
}

/* --------------------------------------------------------------------------
   MIUI grouped list: small gray step label above a rounded card
   -------------------------------------------------------------------------- */

.sandphoto-form {
    display: block;
}

.form-step,
.miui-group {
    display: block;
    margin-bottom: 22px;
}

.step-head {
    display: flex;
    align-items: baseline;
    gap: 8px;
    padding: 0 8px 8px;
    font-size: 13px;
    color: var(--miui-text-3);
}

.step-head .step-index {
    color: var(--miui-accent);
    font-weight: 700;
    font-variant-numeric: tabular-nums;
}

.miui-card {
    background: var(--miui-card);
    border-radius: var(--miui-radius-card);
    box-shadow: var(--miui-shadow-card);
    padding: 16px;
}

.step-card {
    padding: 18px 16px;
}

.row-title {
    display: block;
    font-size: 16px;
    font-weight: 600;
    color: var(--miui-text);
    letter-spacing: 0;
}

.row-desc {
    display: block;
    margin-top: 3px;
    font-size: 13px;
    color: var(--miui-text-2);
    line-height: 1.45;
}

.row-body {
    margin-top: 12px;
}

.row-divider {
    height: 1px;
    margin: 16px 0;
    border: none;
    background: var(--miui-divider);
}

/* --------------------------------------------------------------------------
   Form controls
   -------------------------------------------------------------------------- */

.form-control {
    width: 100%;
    min-width: 0;
    height: 44px;
    padding: 0 14px;
    border: 1.5px solid transparent;
    border-radius: var(--miui-radius-control);
    background: var(--miui-field);
    color: var(--miui-text);
    font-size: 15px;
    transition: border-color 0.2s ease, box-shadow 0.2s ease, background-color 0.2s ease;
    -webkit-appearance: none;
    appearance: none;
}

.form-control::placeholder {
    color: var(--miui-text-3);
}

.form-control:focus {
    outline: none;
    border-color: var(--miui-accent);
    box-shadow: 0 0 0 3px var(--miui-accent-ring);
    background: var(--miui-card);
}

select.form-control {
    padding-right: 46px;
    border-color: var(--miui-border);
    background-color: var(--miui-field);
    background-image: url("data:image/svg+xml;charset=utf-8,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%238a8a8e' stroke-width='2.4' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='m6 9 6 6 6-6'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 14px center;
    background-size: 16px 16px;
    cursor: pointer;
    font-weight: 500;
    text-overflow: ellipsis;
    white-space: nowrap;
    transition: border-color 0.2s ease, box-shadow 0.2s ease,
        background-color 0.2s ease, background-position 0.2s var(--miui-ease);
}

select.form-control:hover:not(:disabled) {
    border-color: var(--miui-border-strong);
    background-color: var(--miui-card-press);
    background-position: right 12px center;
}

select.form-control:active:not(:disabled) {
    background-color: var(--miui-segment-bg);
}

select.form-control:focus {
    border-color: var(--miui-accent);
    background-color: var(--miui-card);
    background-position: right 12px center;
    box-shadow: 0 0 0 3px var(--miui-accent-ring);
}

select.form-control:disabled {
    cursor: not-allowed;
    opacity: 0.55;
}

select.form-control option {
    background: var(--miui-card);
    color: var(--miui-text);
    font-size: 15px;
}

select.form-control::-ms-expand {
    display: none;
}

[data-theme="dark"] select.form-control {
    background-image: url("data:image/svg+xml;charset=utf-8,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%23b7b7bc' stroke-width='2.4' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='m6 9 6 6 6-6'/%3E%3C/svg%3E");
}

@media (prefers-color-scheme: dark) {
    :root:not([data-theme="light"]) select.form-control {
        background-image: url("data:image/svg+xml;charset=utf-8,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%23b7b7bc' stroke-width='2.4' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='m6 9 6 6 6-6'/%3E%3C/svg%3E");
    }
}

/* Custom MIUI select. The native control stays in the DOM for form
   compatibility, while the visible trigger and menu are fully themeable. */
.miui-select-shell {
    position: relative;
    width: 100%;
    min-width: 0;
}

.miui-select-native {
    position: absolute !important;
    width: 1px !important;
    height: 1px !important;
    margin: 0 !important;
    padding: 0 !important;
    border: 0 !important;
    opacity: 0 !important;
    overflow: hidden !important;
    pointer-events: none !important;
    clip-path: inset(50%) !important;
    white-space: nowrap !important;
}

.miui-select-trigger {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
    width: 100%;
    min-width: 0;
    height: 44px;
    padding: 0 12px 0 14px;
    border: 1.5px solid var(--miui-border);
    border-radius: var(--miui-radius-control);
    background: var(--miui-field);
    color: var(--miui-text);
    font-size: 15px;
    font-weight: 500;
    line-height: 1.2;
    text-align: left;
    -webkit-appearance: none;
    appearance: none;
    transition: border-color 0.2s ease, box-shadow 0.2s ease,
        background-color 0.2s ease, transform 0.12s var(--miui-ease);
}

.miui-select-trigger:hover:not(:disabled) {
    border-color: var(--miui-border-strong);
    background: var(--miui-card-press);
}

.miui-select-trigger:active:not(:disabled) {
    background: var(--miui-field);
}

.miui-select-trigger:focus-visible {
    outline: none;
    border-color: var(--miui-accent);
    background: var(--miui-card);
    box-shadow: 0 0 0 3px var(--miui-accent-ring);
}

.miui-select-trigger:disabled {
    cursor: not-allowed;
    opacity: 0.55;
}

.miui-select-value {
    display: flex;
    align-items: center;
    gap: 7px;
    flex: 1 1 auto;
    min-width: 0;
}

.miui-select-value-label {
    min-width: 0;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.miui-select-value-detail {
    flex: 0 0 auto;
    color: var(--miui-text-2);
    font-size: 11.5px;
    font-weight: 500;
    font-variant-numeric: tabular-nums;
    white-space: nowrap;
}

.miui-select-value.is-placeholder {
    color: var(--miui-text-3);
}

.miui-select-chevron {
    width: 18px;
    height: 18px;
    flex: 0 0 auto;
    display: grid;
    place-items: center;
    color: var(--miui-text-2);
    transition: color 0.2s ease, transform 0.2s var(--miui-ease);
}

.miui-select-shell.is-open .miui-select-chevron {
    color: var(--miui-accent);
    transform: rotate(180deg);
}

.miui-select-menu {
    position: absolute;
    top: calc(100% + 6px);
    left: 0;
    z-index: 120;
    width: max-content;
    min-width: 100%;
    max-width: min(360px, calc(100vw - 24px));
    max-height: min(330px, 46vh);
    padding: 6px;
    overflow-y: auto;
    overscroll-behavior: contain;
    border: 1px solid var(--miui-border);
    border-radius: 14px;
    background: var(--miui-card);
    box-shadow: var(--miui-shadow-float);
    transform-origin: top center;
    animation: miui-select-menu-in 0.16s var(--miui-ease);
    scrollbar-width: thin;
    scrollbar-color: var(--miui-border-strong) transparent;
}

.miui-select-menu[hidden] {
    display: none;
}

.miui-select-menu.is-fixed {
    position: fixed;
    top: 0;
    right: auto;
    bottom: auto;
    left: 0;
}

.miui-select-shell.is-drop-up .miui-select-menu {
    top: auto;
    bottom: calc(100% + 6px);
    transform-origin: bottom center;
}

.miui-select-menu::-webkit-scrollbar {
    width: 6px;
}

.miui-select-menu::-webkit-scrollbar-track {
    background: transparent;
}

.miui-select-menu::-webkit-scrollbar-thumb {
    border-radius: var(--miui-radius-pill);
    background: var(--miui-border-strong);
}

.miui-select-option {
    display: flex;
    align-items: center;
    gap: 10px;
    min-height: 42px;
    padding: 8px 9px 8px 11px;
    border-radius: 10px;
    color: var(--miui-text);
    font-size: 14px;
    line-height: 1.35;
    cursor: pointer;
    transition: background-color 0.14s ease, color 0.14s ease;
}

.miui-select-option + .miui-select-option {
    margin-top: 1px;
}

.miui-select-group-label {
    padding: 9px 11px 5px;
    color: var(--miui-text-3);
    font-size: 11px;
    font-weight: 700;
    line-height: 1.3;
}

.miui-select-group-label:not(:first-child) {
    margin-top: 4px;
    border-top: 1px solid var(--miui-border);
}

.miui-select-option:hover,
.miui-select-option.is-active {
    background: var(--miui-field);
    color: var(--miui-text);
}

.miui-select-option.is-selected {
    color: var(--miui-accent);
    font-weight: 600;
}

.miui-select-option.is-selected.is-active {
    background: var(--miui-accent-soft);
}

.miui-select-option.is-disabled {
    cursor: not-allowed;
    opacity: 0.42;
}

.miui-select-option-label {
    flex: 1 1 auto;
    min-width: 0;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.miui-select-option-detail {
    flex: 0 0 auto;
    color: var(--miui-text-2);
    font-size: 11.5px;
    font-variant-numeric: tabular-nums;
    white-space: nowrap;
}

.miui-select-option-check {
    width: 17px;
    height: 17px;
    flex: 0 0 auto;
    color: var(--miui-accent);
    opacity: 0;
    transform: scale(0.72);
    transition: opacity 0.14s ease, transform 0.14s var(--miui-ease);
}

.miui-select-option.is-selected .miui-select-option-check {
    opacity: 1;
    transform: scale(1);
}

@keyframes miui-select-menu-in {
    from {
        opacity: 0;
        transform: translateY(-4px) scale(0.985);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

input[type="number"].form-control {
    -moz-appearance: textfield;
    appearance: textfield;
}

input[type="number"].form-control::-webkit-outer-spin-button,
input[type="number"].form-control::-webkit-inner-spin-button {
    -webkit-appearance: none;
    margin: 0;
}

/* Field layouts */
.field-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
}

.field {
    display: flex;
    flex-direction: column;
    gap: 6px;
    min-width: 0;
}

.field > label {
    font-size: 13px;
    font-weight: 500;
    color: var(--miui-text-2);
}

.inline-field {
    display: flex;
    align-items: center;
    gap: 10px;
}

.inline-field .form-control {
    width: 120px;
    text-align: right;
    font-variant-numeric: tabular-nums;
}

.inline-field .unit {
    font-size: 13px;
    color: var(--miui-text-2);
}

/* Collapsible sub-sections (visibility is toggled with inline display) */
#customSizeSection,
#photoCountSection {
    margin-top: 12px;
    animation: miui-reveal 0.28s var(--miui-ease);
}

@keyframes miui-reveal {
    from {
        opacity: 0;
        transform: translateY(-6px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* --------------------------------------------------------------------------
   Segmented control (upload mode)
   -------------------------------------------------------------------------- */

.miui-segmented {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4px;
    padding: 4px;
    margin-bottom: 14px;
    background: var(--miui-segment-bg);
    border-radius: var(--miui-radius-pill);
}

.miui-segmented-item {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0;
    border-radius: var(--miui-radius-pill);
    font-size: 13.5px;
    color: var(--miui-text-2);
    text-align: center;
    cursor: pointer;
}

.miui-segmented-item input {
    position: absolute;
    opacity: 0;
    width: 1px;
    height: 1px;
    pointer-events: none;
}

.miui-segmented-item > span {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    min-height: 38px;
    padding: 6px 12px;
    border-radius: inherit;
    transition: background-color 0.22s var(--miui-ease), color 0.22s ease,
        box-shadow 0.22s ease;
}

.miui-segmented-item:hover > span {
    color: var(--miui-text);
}

.miui-segmented-item input:checked + span {
    background: var(--miui-segment-thumb);
    color: var(--miui-text);
    font-weight: 600;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.10);
}

.miui-segmented-item:focus-within {
    box-shadow: 0 0 0 3px var(--miui-accent-ring);
}

/* --------------------------------------------------------------------------
   Upload drop zone
   -------------------------------------------------------------------------- */

.upload-area {
    display: block;
    padding: 26px 18px;
    border: 1.5px dashed var(--miui-border-strong);
    border-radius: var(--miui-radius-card);
    background: var(--miui-field);
    text-align: center;
    cursor: pointer;
    transition: border-color 0.22s ease, background-color 0.22s ease,
        box-shadow 0.22s ease, transform 0.22s var(--miui-ease);
}

.upload-area:hover {
    border-color: var(--miui-accent);
    background: var(--miui-accent-soft);
}

.upload-area:active {
    transform: scale(0.99);
}

.upload-area.dragover {
    border-color: var(--miui-accent);
    border-style: solid;
    background: var(--miui-accent-soft);
    box-shadow: 0 0 0 4px var(--miui-accent-ring);
}

.upload-icon-tile {
    width: 52px;
    height: 52px;
    margin: 0 auto 12px;
    border-radius: 16px;
    background: var(--miui-card);
    color: var(--miui-accent);
    display: grid;
    place-items: center;
    box-shadow: var(--miui-shadow-card);
}

.upload-text {
    font-size: 14px;
    color: var(--miui-text-2);
}

/* --------------------------------------------------------------------------
   Multi-photo list
   -------------------------------------------------------------------------- */

#photoListContainer {
    margin-top: 16px;
}

#photoListContainer > h4 {
    margin-bottom: 10px;
    font-size: 14px;
    font-weight: 600;
    color: var(--miui-text-2);
}

.photo-list {
    max-height: 320px;
    overflow-y: auto;
    padding: 8px;
    border-radius: var(--miui-radius-control);
    background: var(--miui-field);
    scrollbar-width: thin;
}

.photo-item {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 10px;
    padding: 10px;
    border-radius: var(--miui-radius-control);
    background: var(--miui-card);
    transition: background-color 0.2s ease;
}

.photo-item + .photo-item {
    margin-top: 8px;
}

.photo-item-thumb {
    width: 52px;
    height: 52px;
    flex: 0 0 auto;
    border-radius: 10px;
    background: var(--miui-field);
}

.photo-item-name {
    flex: 1 1 140px;
    min-width: 0;
    font-size: 14px;
    font-weight: 500;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.photo-item-controls {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 8px;
    width: 100%;
}

.photo-item-field {
    display: flex;
    align-items: center;
    gap: 6px;
    min-width: 0;
}

.photo-item-field-size {
    flex: 1 1 240px;
}

.photo-item-field > label {
    font-size: 12.5px;
    color: var(--miui-text-2);
    white-space: nowrap;
}

.photo-item-field .form-control {
    height: 36px;
    width: auto;
    min-width: 84px;
    max-width: 150px;
    padding: 0 28px 0 10px;
    font-size: 13px;
    border-radius: 10px;
}

.photo-item-field select.form-control {
    padding-right: 30px;
    background-position: right 9px center;
    background-size: 14px 14px;
}

.photo-item-field select.form-control:hover:not(:disabled),
.photo-item-field select.form-control:focus {
    background-position: right 8px center;
}

.photo-item-field .miui-select-shell {
    width: auto;
    min-width: 84px;
    max-width: 220px;
}

.photo-item-field-size .miui-select-shell {
    width: 100%;
    min-width: 180px;
    max-width: 280px;
}

.photo-item-field .miui-select-trigger {
    height: 36px;
    padding: 0 9px 0 10px;
    border-radius: 10px;
    font-size: 13px;
}

.photo-item-field .miui-select-chevron {
    width: 14px;
    height: 14px;
}

.photo-item-field .miui-select-menu {
    max-height: 250px;
}

.photo-item-field .photo-size-menu {
    width: 280px;
    min-width: 280px;
    max-width: min(340px, calc(100vw - 24px));
}

.photo-item-field input[type="number"].form-control {
    width: 64px;
    min-width: 64px;
    padding: 0 8px;
    text-align: center;
}

.miui-btn-danger {
    height: 34px;
    padding: 0 14px;
    border: none;
    border-radius: var(--miui-radius-pill);
    background: var(--miui-danger-soft);
    color: var(--miui-danger);
    font-size: 13px;
    font-weight: 600;
    transition: background-color 0.2s ease, transform 0.12s var(--miui-ease);
}

.miui-btn-danger:hover {
    background: color-mix(in srgb, var(--miui-danger) 24%, transparent);
}

.miui-btn-danger:active {
    transform: scale(0.96);
}

/* --------------------------------------------------------------------------
   Preview
   -------------------------------------------------------------------------- */
.preview-container {
    display: block;
    margin-bottom: 22px;
    padding: 0;
    background: transparent;
    border: none;
    box-shadow: none;
}

.preview-card {
    background: var(--miui-card);
    border-radius: var(--miui-radius-card);
    box-shadow: var(--miui-shadow-card);
    padding: 16px;
}

.preview-stage {
    display: flex;
    justify-content: center;
    margin-top: 12px;
    padding: 14px;
    border-radius: var(--miui-radius-control);
    background: var(--miui-field);
}

#previewCanvas,
#previewImg {
    max-width: 100%;
    height: auto;
    border-radius: 8px;
    background: #ffffff;
    box-shadow: 0 1px 4px rgba(0, 0, 0, 0.12);
}

.preview-meta {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    margin-top: 14px;
    font-size: 14px;
    color: var(--miui-text-2);
}

.preview-meta strong {
    font-weight: 500;
}

#count {
    font-size: 17px;
    font-weight: 700;
    color: var(--miui-accent);
    font-variant-numeric: tabular-nums;
}

#dpiNotice {
    margin-top: 10px;
    padding: 10px 12px;
    border-radius: var(--miui-radius-control);
    background: color-mix(in srgb, var(--miui-warning) 14%, transparent);
    color: var(--miui-warning);
    font-size: 13px;
}

/* --------------------------------------------------------------------------
   Buttons
   -------------------------------------------------------------------------- */

.miui-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    min-height: 46px;
    padding: 0 26px;
    border: none;
    border-radius: var(--miui-radius-pill);
    font-size: 15px;
    font-weight: 600;
    letter-spacing: 0;
    transition: background-color 0.2s ease, box-shadow 0.2s ease,
        transform 0.12s var(--miui-ease), opacity 0.2s ease;
}

.miui-btn-primary {
    background: var(--miui-accent);
    color: var(--miui-text-inverse);
    box-shadow: var(--miui-shadow-accent);
}

.miui-btn-primary:hover:not(:disabled) {
    background: var(--miui-accent-strong);
}

.miui-btn-primary:active:not(:disabled) {
    transform: scale(0.97);
}

.miui-btn-primary:focus-visible {
    outline: none;
    box-shadow: var(--miui-shadow-accent), 0 0 0 4px var(--miui-accent-ring);
}

.miui-btn:disabled {
    background: var(--miui-field);
    color: var(--miui-text-3);
    box-shadow: none;
    cursor: not-allowed;
    transform: none;
}

.download-btn {
    width: 100%;
}

.btn-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

/* --------------------------------------------------------------------------
   Footer
   -------------------------------------------------------------------------- */
footer {
    max-width: 720px;
    margin: 0 auto;
    padding: 8px 16px 40px;
    text-align: center;
    color: var(--miui-text-3);
    font-size: 12.5px;
}

footer .footer-inner {
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

/* --------------------------------------------------------------------------
   Loading spinner
   -------------------------------------------------------------------------- */
.loading {
    display: inline-block;
    width: 18px;
    height: 18px;
    border: 2.5px solid var(--miui-border);
    border-top-color: var(--miui-accent);
    border-radius: 50%;
    animation: spin 0.9s linear infinite;
}

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

/* --------------------------------------------------------------------------
   Responsive
   -------------------------------------------------------------------------- */
@media (max-width: 600px) {
    .container {
        padding: 12px 12px 4px;
    }

    .miui-appbar-inner {
        padding: 6px 10px;
    }

    .app-hero {
        padding: 14px 4px 18px;
    }

    .app-hero-icon {
        width: 48px;
        height: 48px;
        border-radius: 14px;
    }

    .app-hero-text h1 {
        font-size: 21px;
    }

    .step-card,
    .miui-card {
        padding: 16px 14px;
    }

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

    select.form-control {
        height: 48px;
        font-size: 16px;
    }

    .photo-item-field select.form-control {
        height: 38px;
        font-size: 16px;
    }

    .miui-select-trigger {
        height: 48px;
        font-size: 16px;
    }

    .photo-item-field .miui-select-trigger {
        height: 38px;
        font-size: 16px;
    }

    .photo-item-field-size {
        flex-basis: 100%;
    }

    .photo-item-field-size .miui-select-shell {
        flex: 1 1 auto;
        max-width: none;
    }

    .photo-item-field .photo-size-menu {
        width: min(300px, calc(100vw - 24px));
        min-width: min(300px, calc(100vw - 24px));
    }

    .miui-select-menu {
        max-height: min(360px, 48vh);
    }

    .miui-segmented {
        grid-template-columns: 1fr;
        border-radius: var(--miui-radius-card);
    }

    .miui-segmented-item,
    .miui-segmented-item > span {
        border-radius: 12px;
    }

    .miui-btn {
        width: 100%;
    }
}

@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.001ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.001ms !important;
    }
}

/* Softer touch feedback without reducing the target size or keyboard focus. */
@media (pointer: coarse) {
    .miui-select-trigger,
    .photo-item-field .miui-select-trigger {
        min-height: 48px;
        touch-action: manipulation;
        -webkit-tap-highlight-color: transparent;
    }
    .miui-select-trigger:hover:not(:disabled) {
        border-color: var(--miui-border);
        background: var(--miui-field);
    }
    .miui-select-option { min-height: 48px; -webkit-tap-highlight-color: transparent; }
}
/* Compact settings on wider screens, while keeping upload and output full width. */
@media (min-width: 700px) {
    .sandphoto-form {
        display: grid;
        grid-template-columns: repeat(2, minmax(0, 1fr));
        gap: 16px;
        align-items: start;
    }
    .sandphoto-form > .form-step,
    .sandphoto-form > .preview-container { margin-bottom: 0; min-width: 0; }
    .sandphoto-form > .form-step:nth-child(n+6),
    .sandphoto-form > .preview-container { grid-column: 1 / -1; }
    .sandphoto-form > .form-step:nth-child(5) { grid-column: 1 / -1; }
}

/* Give mobile controls room to breathe without making the form unnecessarily long. */
@media (max-width: 600px) {
    .form-step, .miui-group, .preview-container { margin-bottom: 16px; }
    .step-head { padding-bottom: 6px; }
    .step-card, .miui-card { padding: 14px; }
    .row-body { margin-top: 10px; }
    .app-hero { padding-bottom: 14px; }
    .preview-stage { padding: 10px; }
}

#exportFormat + .miui-select-trigger { min-width: 0; }
.download-btn { margin-top: 12px; }
#layoutNotice, #memoryNotice, #resolutionNotice {
    margin-top: 10px;
    padding: 10px 12px;
    border-radius: var(--miui-radius-control);
    background: var(--miui-field);
    color: var(--miui-text-2);
    font-size: 13px;
    line-height: 1.5;
}