:root {
    color-scheme: light;
    --page: #f7faf8;
    --surface: #ffffff;
    --surface-soft: #edf7f3;
    --ink: #16211f;
    --muted: #60736d;
    --line: #cddbd6;
    --green: #167a62;
    --green-dark: #0f5f4b;
    --coral: #d94f70;
    --yellow: #f3c331;
    --danger: #b82c43;
}

* {
    box-sizing: border-box;
}

[hidden] {
    display: none !important;
}

body {
    margin: 0;
    min-height: 100vh;
    background: var(--page);
    color: var(--ink);
    font-family: Inter, "Segoe UI", Arial, sans-serif;
    letter-spacing: 0;
}

button,
input,
select {
    font: inherit;
}

button {
    min-height: 42px;
    border-radius: 8px;
    border: 1px solid var(--line);
    padding: 0 14px;
    cursor: pointer;
    font-weight: 700;
}

button:disabled {
    cursor: not-allowed;
    opacity: 0.62;
}

.app-shell {
    min-height: 100vh;
}

.login-screen {
    min-height: 100vh;
    display: grid;
    place-items: center;
    padding: 24px;
}

.login-panel,
.upload-panel,
.files-panel,
.telegram-panel,
.users-panel {
    background: var(--surface);
    border: 1px solid var(--line);
    border-radius: 8px;
    box-shadow: 0 18px 48px rgba(22, 33, 31, 0.08);
}

.login-panel {
    width: min(100%, 420px);
    padding: 28px;
    display: grid;
    gap: 16px;
}

.kicker {
    margin: 0;
    color: var(--green);
    font-weight: 800;
    font-size: 0.78rem;
}

h1,
h2,
p {
    overflow-wrap: anywhere;
}

h1 {
    margin: 0;
    font-size: 2.25rem;
    line-height: 1;
}

h2 {
    margin: 0;
    font-size: 1.35rem;
}

.subtle {
    margin: 6px 0 0;
    color: var(--muted);
    line-height: 1.5;
}

label {
    display: grid;
    gap: 7px;
    color: var(--muted);
    font-size: 0.88rem;
    font-weight: 700;
}

input,
select {
    width: 100%;
    min-height: 44px;
    border: 1px solid var(--line);
    border-radius: 8px;
    background: #fff;
    color: var(--ink);
    padding: 0 12px;
}

.primary-button {
    border-color: var(--green-dark);
    background: var(--green);
    color: #fff;
}

.primary-button:hover {
    background: var(--green-dark);
}

.ghost-button {
    background: #fff;
    color: var(--green-dark);
}

.plain-button {
    background: #fff;
    color: var(--danger);
}

.dashboard {
    max-width: 1280px;
    margin: 0 auto;
    padding: 28px 18px 44px;
}

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

.topbar {
    margin-bottom: 18px;
}

.top-actions {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

.folder-actions {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.notice {
    margin-bottom: 16px;
    padding: 12px 14px;
    border: 1px solid #b9dfd0;
    border-radius: 8px;
    background: var(--surface-soft);
    color: var(--green-dark);
    font-weight: 700;
}

.notice.error {
    border-color: #efbbc5;
    background: #fff2f4;
    color: var(--danger);
}

.telegram-panel {
    display: grid;
    grid-template-columns: minmax(240px, 1fr) auto;
    gap: 16px;
    align-items: end;
    margin-bottom: 16px;
    padding: 18px;
}

.telegram-steps {
    display: flex;
    gap: 10px;
    align-items: center;
    flex-wrap: wrap;
}

.bot-link,
.inline-code {
    display: inline-flex;
    align-items: center;
    min-height: 38px;
    border-radius: 8px;
    padding: 0 12px;
    font-weight: 800;
}

.bot-link {
    border: 1px solid var(--green-dark);
    color: #fff;
    background: var(--green);
    text-decoration: none;
}

.inline-code {
    border: 1px solid var(--line);
    color: var(--green-dark);
    background: #fff;
    font-family: ui-monospace, SFMono-Regular, Consolas, monospace;
}

.telegram-form {
    grid-column: 1 / -1;
    display: grid;
    grid-template-columns: minmax(180px, 1fr) auto minmax(160px, 0.7fr);
    gap: 10px;
    align-items: end;
}

.workspace {
    display: grid;
    grid-template-columns: minmax(280px, 340px) minmax(0, 1fr);
    gap: 16px;
    align-items: start;
}

.upload-panel,
.files-panel,
.users-panel {
    padding: 18px;
}

.upload-panel {
    display: grid;
    gap: 14px;
}

.upload-panel.drag-over,
.files-panel.drag-over,
.folder-card.drag-over {
    border-color: var(--green);
    background: var(--surface-soft);
}

.folder-card.drag-over {
    box-shadow: 0 0 0 3px rgba(22, 122, 98, 0.16);
}

.file-card.dragging {
    opacity: 0.58;
}

.breadcrumbs {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
    margin-top: 16px;
}

.breadcrumb-button {
    min-height: 34px;
    background: #fff;
    color: var(--green-dark);
}

.breadcrumb-button:not(:last-child)::after {
    content: "/";
    margin-left: 8px;
    color: var(--muted);
}

.folder-form {
    display: grid;
    grid-template-columns: minmax(180px, 1fr) auto minmax(160px, 0.7fr);
    gap: 10px;
    align-items: end;
    margin-top: 16px;
}

.file-drop {
    border: 1px dashed var(--green);
    border-radius: 8px;
    min-height: 84px;
    display: grid;
    place-items: center;
    text-align: center;
    background: var(--surface-soft);
    color: var(--green-dark);
}

.file-drop input {
    max-width: 92%;
    border: 0;
    background: transparent;
    min-height: 0;
    padding: 8px 0;
}

.message {
    min-height: 20px;
    margin: 0;
    color: var(--muted);
    line-height: 1.45;
}

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

.files-grid,
.folders-grid,
.users-list {
    display: grid;
    gap: 12px;
    margin-top: 16px;
}

.files-grid {
    grid-template-columns: repeat(auto-fill, minmax(230px, 1fr));
}

.folders-grid {
    grid-template-columns: repeat(auto-fill, minmax(190px, 1fr));
}

.file-card,
.folder-card,
.user-row {
    border: 1px solid var(--line);
    border-radius: 8px;
    background: #fff;
    padding: 12px;
}

.folder-open {
    width: 100%;
    min-height: 118px;
    display: grid;
    gap: 6px;
    justify-items: start;
    align-content: center;
    background: #fff;
    color: var(--ink);
    text-align: left;
}

.folder-icon {
    display: inline-flex;
    align-items: center;
    min-height: 28px;
    border-radius: 8px;
    background: var(--surface-soft);
    color: var(--green-dark);
    padding: 0 10px;
    font-size: 0.74rem;
    font-weight: 800;
}

.folder-name {
    font-size: 1.05rem;
    font-weight: 800;
    line-height: 1.25;
}

.folder-meta {
    color: var(--muted);
    font-size: 0.82rem;
    line-height: 1.35;
    overflow-wrap: anywhere;
}

.file-preview {
    aspect-ratio: 4 / 3;
    border-radius: 8px;
    border: 1px solid var(--line);
    background: #eef3f1;
    display: grid;
    place-items: center;
    overflow: hidden;
    margin-bottom: 12px;
}

.file-preview img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.file-icon {
    font-size: 2.2rem;
    color: var(--green);
}

.file-name {
    margin: 0 0 4px;
    font-weight: 800;
    line-height: 1.25;
}

.file-meta {
    margin: 0 0 10px;
    color: var(--muted);
    font-size: 0.84rem;
    line-height: 1.4;
}

.file-actions,
.user-actions {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.file-actions a,
.copy-input {
    min-height: 38px;
    border-radius: 8px;
}

.file-actions a {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--line);
    color: var(--green-dark);
    text-decoration: none;
    padding: 0 12px;
    font-weight: 700;
}

.copy-input {
    margin-top: 10px;
    font-size: 0.82rem;
}

.empty-state {
    border: 1px dashed var(--line);
    border-radius: 8px;
    padding: 28px;
    color: var(--muted);
    text-align: center;
}

.users-panel {
    margin-top: 16px;
}

.user-form {
    display: grid;
    grid-template-columns: repeat(5, minmax(140px, 1fr)) auto;
    gap: 12px;
    align-items: end;
    margin-top: 16px;
}

.user-row {
    display: flex;
    justify-content: space-between;
    gap: 14px;
    align-items: center;
    flex-wrap: wrap;
}

.role-pill {
    display: inline-flex;
    align-items: center;
    min-height: 28px;
    padding: 0 10px;
    border-radius: 999px;
    background: var(--surface-soft);
    color: var(--green-dark);
    font-size: 0.78rem;
    font-weight: 800;
}

.danger-button {
    color: var(--danger);
    background: #fff;
    border-color: #efbbc5;
}

@media (max-width: 860px) {
    .telegram-panel,
    .workspace,
    .folder-form,
    .telegram-form,
    .user-form {
        grid-template-columns: 1fr;
    }

    h1 {
        font-size: 1.8rem;
    }
}