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

:root {
    --ink: #1a1814;
    --ink-2: #4a4742;
    --ink-3: #8a8782;
    --paper: #f5f2ed;
    --paper-2: #ede9e3;
    --paper-3: #e4e0d9;
    --accent: #c84b2f;
    --accent-dim: rgba(200, 75, 47, 0.12);
    --green: #2d6a4f;
    --green-dim: rgba(45, 106, 79, 0.12);
    --border: rgba(26, 24, 20, 0.12);
    --border-strong: rgba(26, 24, 20, 0.22);
    --r: 10px;
    --font-d: 'DM Serif Display', serif;
    --font-b: 'Instrument Sans', sans-serif;
    --font-m: 'DM Mono', monospace;
    --shadow: 0 2px 12px rgba(26, 24, 20, 0.08), 0 1px 3px rgba(26, 24, 20, 0.06);
}

body {
    font-family: var(--font-b);
    background: var(--paper);
    color: var(--ink);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* ── LOGIN ── */
#login-screen {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
}

.login-card {
    background: white;
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 48px 44px;
    width: 380px;
    box-shadow: var(--shadow);
    display: flex;
    flex-direction: column;
    gap: 28px;
}

.login-logo {
    font-family: var(--font-d);
    font-size: 28px;
    color: var(--ink);
    letter-spacing: -0.3px;
}

.login-logo span {
    color: var(--accent);
}

.login-sub {
    font-size: 13px;
    color: var(--ink-3);
    margin-top: 4px;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.form-group label {
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--ink-3);
}

.form-input {
    font-family: var(--font-b);
    font-size: 14px;
    padding: 10px 13px;
    border: 1px solid var(--border);
    border-radius: 8px;
    background: var(--paper-2);
    color: var(--ink);
    outline: none;
    transition: border-color 0.2s;
}

.form-input:focus {
    border-color: var(--border-strong);
}

.login-error {
    font-size: 12.5px;
    color: var(--accent);
    display: none;
}

.btn-full {
    font-family: var(--font-b);
    font-size: 14px;
    font-weight: 600;
    padding: 11px;
    border-radius: 8px;
    border: none;
    background: var(--ink);
    color: var(--paper);
    cursor: pointer;
    transition: background 0.18s;
}

.btn-full:hover {
    background: var(--ink-2);
}

.btn-full:disabled {
    opacity: 0.45;
    cursor: not-allowed;
}

/* ── APP SHELL ── */
#app-screen {
    flex: 1;
    display: none;
    flex-direction: column;
}

header {
    padding: 14px 24px;
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: var(--paper);
    position: sticky;
    top: 0;
    z-index: 10;
}

.logo {
    display: flex;
    align-items: baseline;
    gap: 8px;
}

.logo-t {
    font-family: var(--font-d);
    font-size: 20px;
}

.logo-s {
    font-size: 11px;
    font-weight: 500;
    letter-spacing: 0.07em;
    color: var(--ink-3);
    text-transform: uppercase;
}

.header-right {
    display: flex;
    align-items: center;
    gap: 12px;
}

.user-chip {
    font-size: 12px;
    color: var(--ink-3);
    display: flex;
    align-items: center;
    gap: 6px;
}

.user-chip:hover {
    opacity: 0.8;
}

.user-dot {
    width: 26px;
    height: 26px;
    border-radius: 50%;
    background: var(--accent-dim);
    color: var(--accent);
    font-size: 11px;
    font-weight: 600;
    display: flex;
    align-items: center;
    justify-content: center;
}

.lang-toggle {
    display: flex;
    background: var(--paper-2);
    border: 1px solid var(--border);
    border-radius: 20px;
    padding: 3px;
}

.lang-btn {
    font-family: var(--font-b);
    font-size: 12px;
    font-weight: 500;
    padding: 4px 12px;
    border-radius: 16px;
    border: none;
    cursor: pointer;
    background: transparent;
    color: var(--ink-3);
    transition: all 0.18s;
}

.lang-btn.active {
    background: var(--paper);
    color: var(--ink);
    box-shadow: var(--shadow);
}

.btn-sm {
    font-family: var(--font-b);
    font-size: 12px;
    font-weight: 500;
    padding: 6px 12px;
    border-radius: 7px;
    border: 1px solid var(--border);
    background: var(--paper-2);
    color: var(--ink-2);
    cursor: pointer;
    transition: all 0.18s;
}

.btn-sm:hover {
    background: var(--paper-3);
}

/* ── MAIN LAYOUT ── */
.main {
    display: grid;
    grid-template-columns: 1fr 1fr;
    flex: 1;
    height: calc(100vh - 58px);
}

.left-panel {
    border-right: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

/* tabs */
.tab-bar {
    display: flex;
    border-bottom: 1px solid var(--border);
    background: var(--paper);
    padding: 0 18px;
    gap: 2px;
    height: 45px;
    align-items: center;
}

.tab {
    font-family: var(--font-b);
    font-size: 12.5px;
    font-weight: 500;
    padding: 11px 13px 10px;
    border: none;
    background: transparent;
    cursor: pointer;
    color: var(--ink-3);
    border-bottom: 2px solid transparent;
    transition: all 0.18s;
}

.tab:hover {
    color: var(--ink);
}

.tab.active {
    color: var(--accent);
    border-bottom-color: var(--accent);
}

.tab-content {
    display: none;
    flex: 1;
    flex-direction: column;
    overflow: hidden;
}

.tab-content.active {
    display: flex;
}

.panel-inner {
    flex: 1;
    display: flex;
    flex-direction: column;
    padding: 18px;
    gap: 10px;
    overflow: hidden;
}

.field-label {
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--ink-3);
}

.field-hint {
    font-size: 12px;
    color: var(--ink-3);
    line-height: 1.5;
    margin-top: 3px;
}

textarea {
    flex: 1;
    font-family: var(--font-m);
    font-size: 12.5px;
    line-height: 1.65;
    color: var(--ink);
    background: var(--paper-2);
    border: 1px solid var(--border);
    border-radius: var(--r);
    padding: 13px 15px;
    resize: none;
    outline: none;
    transition: border-color 0.2s;
}

textarea:focus {
    border-color: var(--border-strong);
}

textarea::placeholder {
    color: var(--ink-3);
}

.char-count {
    font-size: 11px;
    color: var(--ink-3);
    text-align: right;
    font-family: var(--font-m);
}

.save-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.save-status {
    font-size: 12px;
    color: var(--green);
    display: none;
}

.prompt-vars {
    display: flex;
    gap: 6px;
    flex-wrap: wrap;
    margin-top: 6px;
}

.var-badge {
    font-family: var(--font-m);
    font-size: 11px;
    padding: 3px 8px;
    background: var(--accent-dim);
    color: var(--accent);
    border-radius: 4px;
    cursor: pointer;
    border: 1px solid rgba(200, 75, 47, 0.2);
    transition: background 0.15s;
}

.var-badge:hover {
    background: rgba(200, 75, 47, 0.2);
}

/* generate bar */
.generate-bar {
    padding: 12px 18px;
    border-top: 1px solid var(--border);
    background: var(--paper);
    display: flex;
    align-items: center;
    gap: 10px;
}

.gen-status {
    flex: 1;
    font-size: 12px;
    color: var(--ink-3);
    font-style: italic;
}

.btn-accent {
    font-family: var(--font-b);
    font-size: 13px;
    font-weight: 600;
    padding: 9px 20px;
    border-radius: 8px;
    border: none;
    background: var(--accent);
    color: white;
    cursor: pointer;
    transition: background 0.18s;
}

.btn-accent:hover {
    background: #b33f25;
}

.btn-accent:disabled {
    opacity: 0.45;
    cursor: not-allowed;
}

/* right panel */
.right-panel {
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.output-header {
    padding: 0 20px;
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 45px;
    flex-shrink: 0;
}

.output-title {
    font-family: var(--font-d);
    font-size: 15px;
    color: var(--ink-2);
}

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

.output-body {
    flex: 1;
    overflow-y: auto;
    padding: 20px;
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.empty-state {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 10px;
    color: var(--ink-3);
    text-align: center;
    padding: 40px;
}

.empty-icon {
    font-family: var(--font-d);
    font-size: 32px;
    font-style: italic;
    color: var(--accent);
    opacity: 0.4;
}

.empty-state h3 {
    font-family: var(--font-d);
    font-size: 17px;
    color: var(--ink-2);
}

.empty-state p {
    font-size: 13px;
    line-height: 1.6;
    max-width: 260px;
}

.output-card {
    background: white;
    border: 1px solid var(--border);
    border-radius: var(--r);
    overflow: hidden;
    box-shadow: var(--shadow);
}

.output-card-header {
    padding: 9px 14px;
    background: var(--paper-2);
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.output-card-label {
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--ink-3);
}

.output-text {
    padding: 16px;
    font-family: var(--font-m);
    font-size: 12px;
    line-height: 1.7;
    color: var(--ink);
    white-space: pre-wrap;
    word-break: break-word;
}

.match-badge {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    padding: 3px 10px;
    border-radius: 20px;
    font-size: 11px;
    font-weight: 600;
    background: var(--green-dim);
    color: var(--green);
}

/* history panel */
.history-list {
    display: flex;
    flex-direction: column;
    gap: 0;
}

.history-item {
    padding: 10px 14px;
    border-bottom: 1px solid var(--border);
    cursor: pointer;
    transition: background 0.15s;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.history-item:hover {
    background: var(--paper-2);
}

.history-snippet {
    font-size: 12.5px;
    color: var(--ink);
    flex: 1;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.history-meta {
    font-size: 11px;
    color: var(--ink-3);
    font-family: var(--font-m);
    margin-left: 10px;
    white-space: nowrap;
}

/* adjust bar */
.adjust-bar {
    padding: 10px 18px 14px;
    border-top: 1px solid var(--border);
    display: flex;
    gap: 8px;
    background: var(--paper);
}

.adjust-input {
    flex: 1;
    font-family: var(--font-b);
    font-size: 13px;
    padding: 8px 13px;
    border-radius: 8px;
    border: 1px solid var(--border);
    background: var(--paper-2);
    color: var(--ink);
    outline: none;
    transition: border-color 0.2s;
}

.adjust-input:focus {
    border-color: var(--border-strong);
}

.adjust-input::placeholder {
    color: var(--ink-3);
}

.btn-primary {
    font-family: var(--font-b);
    font-size: 12.5px;
    font-weight: 500;
    padding: 8px 14px;
    border-radius: 8px;
    border: 1px solid var(--border);
    background: var(--ink);
    color: var(--paper);
    cursor: pointer;
    transition: all 0.18s;
}

.btn-primary:hover {
    background: var(--ink-2);
}

.btn-primary:disabled {
    opacity: 0.4;
    cursor: not-allowed;
}

/* admin panel */
#admin-panel {
    position: fixed;
    inset: 0;
    background: rgba(26, 24, 20, 0.45);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 100;
}

#admin-panel.open {
    display: flex;
}

.admin-card {
    background: var(--paper);
    border-radius: 14px;
    width: 520px;
    max-height: 80vh;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    box-shadow: 0 20px 60px rgba(26, 24, 20, 0.25);
}

.admin-header {
    padding: 18px 22px;
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.admin-title {
    font-family: var(--font-d);
    font-size: 17px;
}

.admin-body {
    overflow-y: auto;
    padding: 20px;
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.user-row {
    background: white;
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 12px 14px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.user-row-info {
    flex: 1;
}

.user-row-name {
    font-size: 13.5px;
    font-weight: 500;
    color: var(--ink);
}

.user-row-meta {
    font-size: 11px;
    color: var(--ink-3);
    font-family: var(--font-m);
    margin-top: 2px;
}

.badge-admin {
    font-size: 10px;
    font-weight: 600;
    padding: 2px 7px;
    border-radius: 4px;
    background: var(--accent-dim);
    color: var(--accent);
}

.badge-inactive {
    font-size: 10px;
    font-weight: 600;
    padding: 2px 7px;
    border-radius: 4px;
    background: var(--paper-2);
    color: var(--ink-3);
}

.admin-form {
    background: white;
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 16px;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.admin-form-title {
    font-size: 12px;
    font-weight: 600;
    color: var(--ink-2);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 8px;
}

::-webkit-scrollbar {
    width: 5px;
}

::-webkit-scrollbar-track {
    background: transparent;
}

::-webkit-scrollbar-thumb {
    background: var(--paper-3);
    border-radius: 3px;
}

.dots::after {
    content: '';
    animation: dots 1.4s steps(4, end) infinite;
}

@keyframes dots {
    0% {
        content: ''
    }

    25% {
        content: '.'
    }

    50% {
        content: '..'
    }

    75% {
        content: '...'
    }

    100% {
        content: ''
    }
}

@media print {
    body {
        display: none;
    }
}

.pdf-preview {
    font-family: 'Georgia', serif;
    font-size: 11pt;
    line-height: 1.6;
    color: #1a1814;
}

.pdf-preview h1 {
    font-size: 20pt;
    margin-bottom: 2px;
    border-bottom: 2px solid #c84b2f;
    padding-bottom: 6px;
}

.pdf-preview h2 {
    font-size: 13pt;
    color: #c84b2f;
    margin-top: 16px;
    margin-bottom: 4px;
    border-bottom: 1px solid #e4e0d9;
    padding-bottom: 3px;
}

.pdf-preview h3 {
    font-size: 11pt;
    font-weight: 600;
    margin-top: 10px;
    margin-bottom: 2px;
}

.pdf-preview ul {
    padding-left: 18px;
    margin: 4px 0;
}

.pdf-preview li {
    margin-bottom: 2px;
}

.pdf-preview p {
    margin: 4px 0;
}

.pdf-preview strong {
    font-weight: 600;
}

#profile-panel {
    position: fixed;
    inset: 0;
    background: rgba(26, 24, 20, 0.45);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 100;
}

#profile-panel.open {
    display: flex;
}

#detail-panel {
    position: fixed;
    inset: 0;
    background: rgba(26, 24, 20, 0.45);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 100;
}

#detail-panel.open {
    display: flex;
}