/* ============================================================
   na-web — Главная страница портала Академии Наяновой
   ============================================================ */

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

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    background: linear-gradient(135deg, #0f0c29 0%, #302b63 50%, #24243e 100%);
    min-height: 100vh;
    color: #e0e0e0;
    padding: 40px 20px;
}

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

/* ============================================================
   Header
   ============================================================ */

header {
    text-align: center;
    padding: 30px 20px;
    margin-bottom: 30px;
}

.logo-wrapper {
    display: inline-block;
    margin-bottom: 20px;
    border-radius: 50%;
    padding: 8px;
    background: linear-gradient(135deg, #667eea, #764ba2);
    box-shadow: 0 8px 32px rgba(102, 126, 234, 0.3);
}

.logo-wrapper img {
    display: block;
    width: 120px;
    height: 120px;
    border-radius: 50%;
    background: #fff;
}

header h1 {
    font-size: 2.4rem;
    font-weight: 800;
    margin-bottom: 10px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

header p {
    font-size: 1.1rem;
    color: #9e9e9e;
    line-height: 1.6;
    max-width: 600px;
    margin: 0 auto;
}

/* ============================================================
   Controls (Search + Filter)
   ============================================================ */

.controls {
    display: flex;
    gap: 12px;
    margin-bottom: 24px;
    flex-wrap: wrap;
    align-items: center;
}

.search-input {
    flex: 1;
    min-width: 200px;
    padding: 12px 16px;
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: 12px;
    background: rgba(255, 255, 255, 0.08);
    color: #e0e0e0;
    font-size: 0.95rem;
    outline: none;
    transition: border-color 0.2s ease, background 0.2s ease;
}

.search-input::placeholder {
    color: rgba(255, 255, 255, 0.35);
}

.search-input:focus {
    border-color: #667eea;
    background: rgba(255, 255, 255, 0.12);
}

.filter-buttons {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.filter-btn {
    padding: 8px 16px;
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: 10px;
    background: rgba(255, 255, 255, 0.06);
    color: #b0b0b0;
    font-size: 0.85rem;
    cursor: pointer;
    transition: all 0.2s ease;
    font-weight: 500;
    white-space: nowrap;
}

.filter-btn:hover {
    background: rgba(255, 255, 255, 0.12);
    color: #e0e0e0;
}

.filter-btn.active {
    background: rgba(102, 126, 234, 0.2);
    border-color: #667eea;
    color: #667eea;
}

.no-results {
    display: none;
    text-align: center;
    padding: 40px 20px;
    color: #9e9e9e;
    font-size: 1.05rem;
    grid-column: 1 / -1;
}

.no-results.visible {
    display: block;
}

/* ============================================================
   Project Grid
   ============================================================ */

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 24px;
    margin-bottom: 40px;
}

.project-card {
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 20px;
    padding: 28px 24px;
    text-decoration: none;
    color: inherit;
    transition: all 0.3s ease;
    display: flex;
    flex-direction: column;
    position: relative;
    overflow: hidden;
}

.project-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, #667eea, #764ba2);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.project-card:hover {
    transform: translateY(-6px);
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.2);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}

.project-card:focus-visible {
    outline: 3px solid #667eea;
    outline-offset: 2px;
    border-color: rgba(102, 126, 234, 0.5);
}

.project-card:hover::before {
    opacity: 1;
}

.project-card.active-card::before {
    background: linear-gradient(90deg, #11998e, #38ef7d);
    opacity: 1;
}

.project-card.wip-card::before {
    background: linear-gradient(90deg, #feca57, #ff9f43);
    opacity: 1;
}

.card-header {
    display: flex;
    align-items: flex-start;
    gap: 16px;
    margin-bottom: 12px;
}

.card-icon {
    font-size: 2.2rem;
    flex-shrink: 0;
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.08);
    border-radius: 14px;
}

.card-title-area {
    flex: 1;
    min-width: 0;
}

.card-title {
    font-size: 1.15rem;
    font-weight: 700;
    color: #ffffff;
    margin-bottom: 4px;
    display: flex;
    align-items: center;
    gap: 10px;
    flex-wrap: wrap;
}

.card-domain {
    font-size: 0.8rem;
    color: #667eea;
    word-break: break-all;
}

.badge {
    display: inline-block;
    font-size: 0.7rem;
    font-weight: 600;
    padding: 3px 10px;
    border-radius: 12px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.badge-live {
    background: rgba(56, 239, 125, 0.15);
    color: #38ef7d;
}

.badge-wip {
    background: rgba(255, 193, 7, 0.15);
    color: #ffc107;
}

.card-description {
    font-size: 0.92rem;
    color: #b0b0b0;
    line-height: 1.6;
    flex: 1;
}

.card-footer {
    margin-top: 16px;
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.85rem;
    color: #667eea;
    font-weight: 500;
}

.card-footer .arrow {
    transition: transform 0.2s ease;
}

.project-card:hover .card-footer .arrow {
    transform: translateX(4px);
}

/* ============================================================
   Section title
   ============================================================ */

.section-title {
    font-size: 1.4rem;
    font-weight: 700;
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: 20px;
    padding-bottom: 10px;
    border-bottom: 2px solid rgba(255, 255, 255, 0.1);
}

/* ============================================================
   Footer
   ============================================================ */

footer {
    text-align: center;
    padding: 20px;
    font-size: 0.85rem;
    color: #666;
}

footer a {
    color: #667eea;
    text-decoration: none;
}

footer a:hover {
    text-decoration: underline;
}

/* ============================================================
   Theme Toggle Button
   ============================================================ */

.theme-toggle {
    position: absolute;
    top: 16px;
    right: 20px;
    width: 40px;
    height: 40px;
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.08);
    font-size: 1.2rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background 0.2s ease, transform 0.2s ease;
    z-index: 10;
    line-height: 1;
}

.theme-toggle:hover {
    background: rgba(255, 255, 255, 0.16);
    transform: scale(1.1);
}

.theme-toggle:focus-visible {
    outline: 3px solid #667eea;
    outline-offset: 2px;
}

/* ============================================================
   Badge — Down (uptime check)
   ============================================================ */

.badge-down {
    background: rgba(255, 82, 82, 0.15);
    color: #ff5252;
}

/* ============================================================
   Light Theme Overrides (manual toggle)
   ============================================================ */

[data-theme="light"] body {
    background: linear-gradient(135deg, #e8ecf1 0%, #d5dce6 50%, #c8d0db 100%);
    color: #2d2d2d;
}

[data-theme="light"] .project-card {
    background: rgba(255, 255, 255, 0.85);
    border-color: rgba(0, 0, 0, 0.08);
    color: #2d2d2d;
}

[data-theme="light"] .project-card:hover {
    background: #ffffff;
    border-color: rgba(0, 0, 0, 0.15);
    box-shadow: 0 12px 28px rgba(0, 0, 0, 0.1);
}

[data-theme="light"] .card-title {
    color: #1a1a2e;
}

[data-theme="light"] .card-description {
    color: #555;
}

[data-theme="light"] .card-domain {
    color: #4a5acb;
}

[data-theme="light"] .card-footer {
    color: #4a5acb;
}

[data-theme="light"] .card-icon {
    background: rgba(0, 0, 0, 0.05);
}

[data-theme="light"] .search-input {
    background: rgba(0, 0, 0, 0.04);
    border-color: rgba(0, 0, 0, 0.12);
    color: #2d2d2d;
}

[data-theme="light"] .search-input::placeholder {
    color: rgba(0, 0, 0, 0.35);
}

[data-theme="light"] .search-input:focus {
    background: rgba(0, 0, 0, 0.07);
    border-color: #4a5acb;
}

[data-theme="light"] .filter-btn {
    background: rgba(0, 0, 0, 0.04);
    border-color: rgba(0, 0, 0, 0.12);
    color: #555;
}

[data-theme="light"] .filter-btn:hover {
    background: rgba(0, 0, 0, 0.08);
    color: #2d2d2d;
}

[data-theme="light"] .filter-btn.active {
    background: rgba(74, 90, 203, 0.12);
    border-color: #4a5acb;
    color: #4a5acb;
}

[data-theme="light"] .section-title {
    color: rgba(0, 0, 0, 0.7);
    border-bottom-color: rgba(0, 0, 0, 0.1);
}

[data-theme="light"] footer {
    color: #888;
}

[data-theme="light"] .no-results {
    color: #777;
}

[data-theme="light"] .theme-toggle {
    border-color: rgba(0, 0, 0, 0.15);
    background: rgba(0, 0, 0, 0.05);
}

[data-theme="light"] .theme-toggle:hover {
    background: rgba(0, 0, 0, 0.1);
}

/* Override auto dark mode when manual theme is set */
[data-theme="light"] .project-card.active-card::before {
    background: linear-gradient(90deg, #11998e, #38ef7d);
}

[data-theme="light"] .project-card.wip-card::before {
    background: linear-gradient(90deg, #feca57, #ff9f43);
}

/* ============================================================
   Header — make relative for toggle positioning
   ============================================================ */

header {
    position: relative;
}

/* ============================================================
   Focus-visible for all interactive elements
   ============================================================ */

a:focus-visible,
button:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible {
    outline: 3px solid #667eea;
    outline-offset: 2px;
}

/* ============================================================
   Responsive
   ============================================================ */

@media (max-width: 768px) {
    body {
        padding: 20px 12px;
    }

    header h1 {
        font-size: 1.8rem;
    }

    header p {
        font-size: 1rem;
    }

    .projects-grid {
        grid-template-columns: 1fr;
        gap: 16px;
    }

    .logo-wrapper img {
        width: 80px;
        height: 80px;
    }

    .card-icon {
        font-size: 1.8rem;
        width: 42px;
        height: 42px;
    }

    .card-title {
        font-size: 1.05rem;
    }

    .controls {
        flex-direction: column;
        gap: 8px;
    }

    .search-input {
        min-width: 100%;
    }

    .filter-buttons {
        width: 100%;
        justify-content: center;
    }
}

@media (min-width: 769px) and (max-width: 1024px) {
    .projects-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 480px) {
    .filter-btn {
        padding: 6px 12px;
        font-size: 0.8rem;
    }
}