/* ============================================
   СТРОГИЙ МИНИМАЛИСТИЧНЫЙ ДИЗАЙН
   ============================================ */

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

:root {
    --color-bg: #ffffff;
    --color-bg-secondary: #f5f5f5;
    --color-bg-dark: #1a1a1a;
    --color-text: #222222;
    --color-text-secondary: #555555;
    --color-text-light: #888888;
    --color-border: #cccccc;
    --color-border-light: #e0e0e0;
    --color-border-dark: #999999;
    --color-accent: #0066cc;
    --color-accent-hover: #004d99;
    --color-accent-bg: #eef4fb;
    --color-danger: #cc3333;
    --color-success: #2d7d46;
    --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    --font-mono: "SF Mono", Monaco, "Cascadia Code", "Roboto Mono", monospace;
}

html {
    font-size: 16px;
}

body {
    font-family: var(--font-family);
    background: var(--color-bg-secondary);
    color: var(--color-text);
    line-height: 1.6;
    min-height: 100vh;
}

/* ============================================
   ОБЩИЕ КОМПОНЕНТЫ
   ============================================ */

a {
    color: var(--color-accent);
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
}

.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 20px;
}

.container-narrow {
    max-width: 600px;
    margin: 0 auto;
    padding: 20px;
}

.card {
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    padding: 24px 28px;
    margin-bottom: 20px;
}

.card-title {
    font-size: 1.15rem;
    font-weight: 600;
    margin-bottom: 12px;
    letter-spacing: -0.01em;
}

.btn {
    display: inline-block;
    padding: 10px 24px;
    font-family: var(--font-family);
    font-size: 0.9rem;
    font-weight: 500;
    border: 1px solid var(--color-border);
    background: var(--color-bg);
    color: var(--color-text);
    cursor: pointer;
    transition: background 0.15s ease, border-color 0.15s ease;
    text-align: center;
    line-height: 1.4;
}

.btn:hover {
    background: var(--color-bg-secondary);
    border-color: var(--color-border-dark);
    text-decoration: none;
}

.btn-primary {
    background: var(--color-accent);
    border-color: var(--color-accent);
    color: #ffffff;
}

.btn-primary:hover {
    background: var(--color-accent-hover);
    border-color: var(--color-accent-hover);
    color: #ffffff;
}

.btn-danger {
    background: var(--color-danger);
    border-color: var(--color-danger);
    color: #ffffff;
}

.btn-danger:hover {
    background: #aa2222;
    border-color: #aa2222;
    color: #ffffff;
}

.btn-success {
    background: var(--color-success);
    border-color: var(--color-success);
    color: #ffffff;
}

.btn-success:hover {
    background: #1f5f36;
    border-color: #1f5f36;
    color: #ffffff;
}

.btn-sm {
    padding: 6px 14px;
    font-size: 0.8rem;
}

.btn-block {
    display: block;
    width: 100%;
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

input[type="text"],
input[type="password"],
input[type="email"],
select,
textarea {
    width: 100%;
    padding: 10px 12px;
    font-family: var(--font-family);
    font-size: 0.95rem;
    border: 1px solid var(--color-border);
    background: var(--color-bg);
    color: var(--color-text);
    transition: border-color 0.15s ease;
    border-radius: 0;
}

input[type="text"]:focus,
input[type="password"]:focus,
input[type="email"]:focus,
select:focus,
textarea:focus {
    outline: none;
    border-color: var(--color-accent);
}

input[readonly] {
    cursor: default;
    background: var(--color-bg-secondary);
}

input[readonly]:focus {
    border-color: var(--color-border);
    box-shadow: none;
}

label {
    display: block;
    font-weight: 500;
    font-size: 0.9rem;
    margin-bottom: 4px;
    color: var(--color-text-secondary);
}

.form-group {
    margin-bottom: 18px;
}

.form-group label {
    margin-bottom: 4px;
}

h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    letter-spacing: -0.02em;
    line-height: 1.3;
}

h1 { font-size: 2rem; }
h2 { font-size: 1.5rem; }
h3 { font-size: 1.2rem; }

hr {
    border: none;
    border-top: 1px solid var(--color-border);
    margin: 24px 0;
}

.hidden {
    display: none !important;
}

/* ============================================
   СТРАНИЦА ВХОДА
   ============================================ */

.login-page {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    background: var(--color-bg-secondary);
}

.login-box {
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    padding: 40px 36px;
    width: 100%;
    max-width: 400px;
}

.login-box h1 {
    font-size: 1.6rem;
    margin-bottom: 4px;
    font-weight: 600;
}

.login-box .subtitle {
    color: var(--color-text-secondary);
    font-size: 0.95rem;
    margin-bottom: 28px;
}

.login-box .error {
    background: #fce8e8;
    border: 1px solid #e0b3b3;
    color: #992222;
    padding: 10px 14px;
    margin-bottom: 18px;
    font-size: 0.9rem;
}

.login-box .login-info {
    margin-top: 20px;
    padding: 14px 16px;
    background: var(--color-bg-secondary);
    border: 1px solid var(--color-border);
    font-size: 0.85rem;
    color: var(--color-text-secondary);
}

.login-box .login-info code {
    background: var(--color-bg);
    padding: 1px 6px;
    border: 1px solid var(--color-border);
    font-family: var(--font-mono);
    font-size: 0.85rem;
}

/* ============================================
   ПАНЕЛЬ УПРАВЛЕНИЯ
   ============================================ */

.dashboard-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-bottom: 16px;
    border-bottom: 1px solid var(--color-border);
    margin-bottom: 24px;
    flex-wrap: wrap;
    gap: 12px;
}

.dashboard-header h1 {
    font-size: 1.6rem;
}

.dashboard-header .user-info {
    font-size: 0.9rem;
    color: var(--color-text-secondary);
}

.dashboard-header .user-info strong {
    color: var(--color-text);
}

.dashboard-actions {
    margin-bottom: 28px;
}

.presentations-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 16px;
}

.presentation-card {
    border: 1px solid var(--color-border);
    padding: 18px 20px;
    background: var(--color-bg);
    transition: border-color 0.15s ease;
}

.presentation-card:hover {
    border-color: var(--color-border-dark);
}

.presentation-card h3 {
    font-size: 1.05rem;
    margin-bottom: 4px;
}

.presentation-card .meta {
    font-size: 0.85rem;
    color: var(--color-text-light);
    margin-bottom: 14px;
}

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

.empty-state {
    text-align: center;
    padding: 60px 20px;
    color: var(--color-text-secondary);
}

.empty-state h3 {
    margin-bottom: 8px;
    color: var(--color-text);
}

.empty-state p {
    margin-bottom: 18px;
}

/* ============================================
   СОЗДАНИЕ ПРЕЗЕНТАЦИИ
   ============================================ */

.create-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    padding-bottom: 16px;
    border-bottom: 1px solid var(--color-border);
    margin-bottom: 24px;
    flex-wrap: wrap;
    gap: 12px;
}

.create-header h1 {
    font-size: 1.6rem;
}

.create-header .subtitle {
    color: var(--color-text-secondary);
    font-size: 0.95rem;
}

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

.poll-item {
    border: 1px solid var(--color-border);
    padding: 20px 22px;
    margin-bottom: 18px;
    background: var(--color-bg-secondary);
}

.poll-item .poll-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 16px;
    padding-bottom: 10px;
    border-bottom: 1px solid var(--color-border);
}

.poll-item .poll-header h3 {
    font-size: 1rem;
    font-weight: 600;
}

.poll-item .option-inputs {
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin: 10px 0 12px 0;
}

.poll-item .option-inputs input {
    width: 100%;
}

.form-actions {
    display: flex;
    gap: 12px;
    margin-top: 24px;
    flex-wrap: wrap;
}

.success-box {
    border: 2px solid var(--color-success);
    padding: 32px 28px;
    text-align: center;
    background: var(--color-bg);
}

.success-box h2 {
    color: var(--color-success);
    margin-bottom: 8px;
}

.success-box .links {
    display: flex;
    gap: 14px;
    justify-content: center;
    margin: 24px 0;
    flex-wrap: wrap;
}

.success-box .link-input {
    margin-top: 16px;
}

.success-box .link-input input {
    text-align: center;
    font-family: var(--font-mono);
    font-size: 0.9rem;
}

/* ============================================
   ПРЕЗЕНТАЦИЯ (ПАНЕЛЬ ВЕДУЩЕГО)
   ============================================ */

.presenter-container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 20px;
}

.presenter-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-bottom: 16px;
    border-bottom: 1px solid var(--color-border);
    margin-bottom: 24px;
    flex-wrap: wrap;
    gap: 12px;
}

.presenter-header h1 {
    font-size: 1.5rem;
}

.presenter-header .info {
    display: flex;
    gap: 20px;
    font-size: 0.9rem;
    color: var(--color-text-secondary);
}

.presenter-header .info span {
    display: inline-block;
}

.slide-content {
    min-height: 350px;
    padding: 24px 0;
}

.slide-content h2 {
    font-size: 1.4rem;
    margin-bottom: 12px;
}

.slide-content .description {
    color: var(--color-text-secondary);
    margin-bottom: 20px;
}

/* QR-код */
.qr-box {
    border: 1px solid var(--color-border);
    padding: 16px;
    display: inline-block;
    background: var(--color-bg);
    margin: 8px 0 16px 0;
}

.qr-box img {
    display: block;
    width: 200px;
    height: 200px;
    image-rendering: pixelated;
}

/* Опрос */
.poll-options {
    max-width: 650px;
}

.poll-option {
    border: 1px solid var(--color-border);
    padding: 14px 18px;
    margin-bottom: 8px;
    display: flex;
    flex-direction: column;
    background: var(--color-bg);
}

.poll-option .option-text {
    font-weight: 500;
}

.poll-option .option-votes {
    color: var(--color-text-secondary);
    font-size: 0.9rem;
}

.poll-stats {
    margin-top: 16px;
    font-size: 0.95rem;
    color: var(--color-text-secondary);
}

.poll-stats #poll-status {
    padding: 2px 10px;
    border-radius: 3px;
    font-size: 0.8rem;
    font-weight: 500;
    color: white;
}

/* Результаты */
.results-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 30px;
    margin-top: 16px;
}

.results-layout .chart-container {
    min-height: 280px;
}

.results-table table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.95rem;
}

.results-table th {
    text-align: left;
    font-weight: 600;
    padding: 8px 10px 8px 0;
    border-bottom: 2px solid var(--color-border);
}

.results-table td {
    padding: 8px 10px 8px 0;
    border-bottom: 1px solid var(--color-border-light);
}

.results-table tr:last-child td {
    border-bottom: none;
}

.total-votes {
    margin-top: 18px;
    font-weight: 500;
    color: var(--color-text-secondary);
}

.total-votes strong {
    color: var(--color-text);
}

/* Панель управления */
.control-panel {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: var(--color-bg);
    border-top: 1px solid var(--color-border);
    padding: 14px 24px;
    display: flex;
    gap: 12px;
    justify-content: center;
    z-index: 100;
    flex-wrap: wrap;
}

.control-panel .btn {
    min-width: 100px;
}

/* ============================================
   КЛИЕНТ
   ============================================ */

.client-container {
    max-width: 600px;
    margin: 0 auto;
    padding: 20px;
}

.client-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-bottom: 16px;
    border-bottom: 1px solid var(--color-border);
    margin-bottom: 20px;
}

.client-header h1 {
    font-size: 1.3rem;
}

.client-header .status {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.85rem;
    color: var(--color-text-secondary);
}

.client-header .status .dot {
    display: inline-block;
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: var(--color-border-dark);
}

.client-header .status .dot.connected {
    background: var(--color-success);
}

.client-header .status .dot.disconnected {
    background: var(--color-danger);
}

.client-screen {
    min-height: 300px;
    padding: 12px 0;
}

.client-screen h2 {
    font-size: 1.3rem;
    margin-bottom: 8px;
}

.client-screen .sub {
    color: var(--color-text-secondary);
    margin-bottom: 18px;
}

.client-option {
    border: 1px solid var(--color-border);
    padding: 14px 18px;
    margin-bottom: 8px;
    cursor: pointer;
    background: var(--color-bg);
    transition: border-color 0.15s ease, background 0.15s ease;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.client-option:hover {
    border-color: var(--color-border-dark);
}

.client-option.selected {
    border-color: var(--color-accent);
    background: var(--color-accent-bg);
}

.client-results-list .result-item {
    display: flex;
    align-items: center;
    padding: 8px 0;
    border-bottom: 1px solid var(--color-border-light);
    gap: 12px;
}

.client-results-list .result-item:last-child {
    border-bottom: none;
}

.client-results-list .result-option {
    flex: 1;
    font-weight: 500;
}

.client-results-list .result-bar-wrap {
    flex: 2;
    height: 18px;
    background: var(--color-bg-secondary);
    border: 1px solid var(--color-border);
}

.client-results-list .result-bar {
    height: 100%;
    background: var(--color-accent);
    transition: width 0.3s ease;
}

.client-results-list .result-numbers {
    display: flex;
    gap: 12px;
    font-size: 0.9rem;
    min-width: 80px;
    justify-content: flex-end;
}

.client-results-list .result-numbers .votes {
    color: var(--color-text-secondary);
}

.client-results-list .result-numbers .pct {
    font-weight: 500;
    min-width: 40px;
    text-align: right;
}

.client-footer {
    margin-top: 24px;
    padding-top: 16px;
    border-top: 1px solid var(--color-border);
    display: flex;
    justify-content: space-between;
    font-size: 0.8rem;
    color: var(--color-text-light);
}

.vote-success {
    border: 1px solid var(--color-success);
    padding: 12px 16px;
    margin-top: 16px;
    background: #eef7f0;
    color: var(--color-success);
    font-weight: 500;
}

/* ============================================
   РЕЗУЛЬТАТЫ
   ============================================ */

.results-header {
    padding-bottom: 16px;
    border-bottom: 1px solid var(--color-border);
    margin-bottom: 24px;
}

.results-header h1 {
    font-size: 1.6rem;
}

.results-header .sub {
    color: var(--color-text-secondary);
    font-size: 0.95rem;
}

.results-header .back-link {
    display: inline-block;
    margin-top: 8px;
}

.summary-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
    gap: 16px;
    margin: 20px 0 30px 0;
}

.summary-card {
    border: 1px solid var(--color-border);
    padding: 16px 20px;
    background: var(--color-bg);
    text-align: center;
}

.summary-card .number {
    font-size: 2rem;
    font-weight: 600;
    color: var(--color-accent);
}

.summary-card .label {
    font-size: 0.85rem;
    color: var(--color-text-secondary);
}

.poll-result {
    border: 1px solid var(--color-border);
    padding: 20px 22px;
    margin-bottom: 20px;
    background: var(--color-bg);
}

.poll-result h3 {
    font-size: 1.1rem;
    margin-bottom: 2px;
}

.poll-result .poll-desc {
    color: var(--color-text-secondary);
    font-size: 0.9rem;
    margin-bottom: 12px;
}

.poll-result .option-result {
    padding: 10px 0;
    border-bottom: 1px solid var(--color-border-light);
}

.poll-result .option-result:last-child {
    border-bottom: none;
}

.poll-result .option-result .opt-header {
    display: flex;
    justify-content: space-between;
    margin-bottom: 4px;
    font-size: 0.95rem;
}

.poll-result .option-result .opt-header .opt-text {
    font-weight: 500;
}

.poll-result .option-result .opt-header .opt-nums {
    display: flex;
    gap: 14px;
    color: var(--color-text-secondary);
}

.poll-result .option-result .opt-bar {
    height: 16px;
    background: var(--color-bg-secondary);
    border: 1px solid var(--color-border);
}

.poll-result .option-result .opt-bar .fill {
    height: 100%;
    background: var(--color-accent);
    transition: width 0.4s ease;
}

/* ============================================
   АДАПТИВНОСТЬ
   ============================================ */

@media (max-width: 768px) {
    .container, .container-narrow {
        padding: 14px;
    }

    .dashboard-header {
        flex-direction: column;
        align-items: flex-start;
    }

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

    .results-layout {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    .create-header {
        flex-direction: column;
        align-items: flex-start;
    }

    .client-container {
        padding: 14px;
    }

    .control-panel {
        padding: 12px 16px;
        gap: 8px;
    }

    .control-panel .btn {
        min-width: 80px;
        padding: 8px 16px;
        font-size: 0.85rem;
    }

    .summary-cards {
        grid-template-columns: 1fr 1fr;
    }

    .login-box {
        padding: 28px 20px;
        margin: 0 12px;
    }
    
    .qr-box img {
        width: 150px;
        height: 150px;
    }
}

@media (max-width: 480px) {
    .summary-cards {
        grid-template-columns: 1fr;
    }

    .presenter-header .info {
        flex-direction: column;
        gap: 4px;
    }

    .client-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 8px;
    }
}