/* ============================================
   KOODI PROJECTS CATALOG - projects.css
   Стиль Koodi з рожевим акцентом
   ============================================ */

/* ========== HERO ========== */

.pj-hero {
    background: var(--pink);
    padding: 80px 20px;
    text-align: center;
}

.pj-hero-content {
    max-width: 800px;
    margin: 0 auto;
}

.pj-hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: var(--black);
    color: var(--white);
    padding: 8px 20px;
    border-radius: 50px;
    font-weight: 600;
    font-size: 14px;
    margin-bottom: 20px;
}

.pj-hero-title {
    font-size: clamp(32px, 6vw, 56px);
    font-weight: 800;
    color: var(--black);
    margin-bottom: 15px;
}

.pj-hero-subtitle {
    font-size: 18px;
    color: var(--black);
    opacity: 0.8;
    max-width: 600px;
    margin: 0 auto 30px;
    line-height: 1.6;
}

.pj-hero-stats {
    display: flex;
    justify-content: center;
    gap: 40px;
    flex-wrap: wrap;
}

.pj-stat {
    text-align: center;
}

.pj-stat-number {
    font-size: 42px;
    font-weight: 900;
    color: var(--black);
}

.pj-stat-label {
    font-size: 14px;
    color: var(--black);
    opacity: 0.7;
}

/* ========== FILTERS ========== */

.pj-filters-section {
    max-width: 1200px;
    margin: 40px auto 50px;
    padding: 35px 40px;
    background: var(--white);
    border-radius: 30px;
    border: 4px solid var(--black);
    box-shadow: 10px 10px 0 var(--black);
}

.pj-filter-group {
    margin-bottom: 25px;
}

.pj-filter-group:last-child {
    margin-bottom: 0;
}

.pj-filter-label {
    font-weight: 800;
    font-size: 13px;
    color: var(--black);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 14px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.pj-filter-label::before {
    content: '';
    width: 4px;
    height: 20px;
    background: var(--pink);
    border-radius: 2px;
}

.pj-filter-buttons {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
}

.pj-filter-btn {
    padding: 12px 24px;
    border-radius: 16px;
    border: 3px solid var(--black);
    background: var(--white);
    font-family: 'Rubik', sans-serif;
    font-weight: 700;
    font-size: 14px;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 8px;
    transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
}

.pj-filter-btn:hover {
    transform: translateY(-3px);
    box-shadow: 4px 4px 0 var(--black);
    background: var(--lightgray);
}

.pj-filter-btn.active {
    background: var(--pink);
    color: var(--black);
    box-shadow: 4px 4px 0 var(--black);
    transform: translateY(-2px);
}

/* Спеціальні стилі для активних кнопок */
.pj-filter-btn[data-diff="easy"].active { background: var(--lime); }
.pj-filter-btn[data-diff="medium"].active { background: var(--orange); }
.pj-filter-btn[data-diff="hard"].active { background: #E74C3C; color: white; }
.pj-filter-btn[data-type="free"].active { background: var(--lime); }
.pj-filter-btn[data-type="premium"].active { background: var(--pink); }

.pj-lang-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    border: 2px solid var(--black);
    flex-shrink: 0;
}

.pj-diff-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    border: 2px solid var(--black);
}

/* ========== MAIN ========== */

.pj-main {
    max-width: 1200px;
    margin: 0 auto 60px;
    padding: 0 20px;
}

.pj-section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 25px;
}

.pj-section-title {
    font-size: 24px;
    font-weight: 800;
    color: var(--black);
    display: flex;
    align-items: center;
    gap: 10px;
}

.pj-results-count {
    font-size: 14px;
    color: var(--darkgray);
}

/* ========== GRID ========== */

.pj-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 30px;
    padding: 10px;
}

/* ========== PROJECT CARD ========== */

.pj-card {
    background: var(--white);
    border-radius: 28px;
    border: 4px solid var(--black);
    overflow: hidden;
    transition: all 0.3s ease;
    position: relative;
}

.pj-card:hover {
    transform: translateY(-10px);
    box-shadow: 10px 10px 0 var(--black);
}

/* Koodi Club - преміум картки для підписників */
.pj-card-club {
    border-color: var(--lime);
    box-shadow: 0 0 0 2px var(--lime);
    position: relative;
}

.pj-card-club::after {
    content: '👑';
    position: absolute;
    top: -8px;
    right: -8px;
    font-size: 24px;
    z-index: 10;
    filter: drop-shadow(2px 2px 2px rgba(0,0,0,0.3));
    animation: crownFloat 2s ease-in-out infinite;
}

@keyframes crownFloat {
    0%, 100% { transform: translateY(0) rotate(-5deg); }
    50% { transform: translateY(-5px) rotate(5deg); }
}

.pj-card-club:hover {
    box-shadow: 10px 10px 0 var(--lime);
}

/* Card Header */
.pj-card-header {
    height: 160px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    border-bottom: 4px solid var(--black);
    position: relative;
    overflow: hidden;
    gap: 8px;
}

.pj-card-header::before {
    content: '';
    position: absolute;
    inset: 0;
    opacity: 0.15;
    background-image:
        radial-gradient(circle at 15% 85%, currentColor 3px, transparent 3px),
        radial-gradient(circle at 85% 15%, currentColor 3px, transparent 3px),
        radial-gradient(circle at 50% 50%, currentColor 2px, transparent 2px);
    background-size: 40px 40px;
}

/* Кольори для мов */
.pj-card-header.python { background: linear-gradient(135deg, #3776ab 0%, #4b8bbe 100%); color: white; }
.pj-card-header.js { background: linear-gradient(135deg, #f7df1e 0%, #f0db4f 100%); color: #333; }
.pj-card-header.html { background: linear-gradient(135deg, #e44d26 0%, #f16529 100%); color: white; }
.pj-card-header.react { background: linear-gradient(135deg, #61dafb 0%, #00d8ff 100%); color: #222; }

/* Emoji Icon */
.pj-card-emoji {
    font-size: 64px;
    position: relative;
    z-index: 1;
    filter: drop-shadow(3px 3px 0 rgba(0,0,0,0.2));
    transition: transform 0.3s;
}

.pj-card:hover .pj-card-emoji {
    transform: scale(1.15) rotate(-5deg);
    animation: emojiBounce 0.5s ease;
}

@keyframes emojiBounce {
    0%, 100% { transform: scale(1.15) rotate(-5deg); }
    50% { transform: scale(1.2) rotate(5deg); }
}

/* Title in Header */
.pj-card-header .pj-card-title {
    font-size: 18px;
    font-weight: 800;
    color: inherit;
    margin: 0;
    text-align: center;
    position: relative;
    z-index: 1;
    text-shadow: 1px 1px 0 rgba(0,0,0,0.1);
}

/* Badges */
.pj-card-badges {
    position: absolute;
    top: 12px;
    right: 12px;
    display: flex;
    gap: 6px;
    z-index: 10;
}

.pj-badge {
    padding: 6px 12px;
    border-radius: 10px;
    font-size: 11px;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    border: 2px solid var(--black);
    box-shadow: 2px 2px 0 var(--black);
}

.pj-badge-free { background: var(--lime); color: var(--black); }
.pj-badge-premium { 
    background: linear-gradient(135deg, #FF4E99 0%, #ff8fab 50%, #ffd6e0 100%); 
    color: var(--black); 
    border-color: #FF4E99;
    box-shadow: 2px 2px 0 #d4547a;
}
.pj-badge-new { background: var(--orange); color: var(--black); }
.pj-badge-popular { background: #E74C3C; color: white; border-color: #c0392b; }

/* Koodi Club - для преміум користувачів! */
.pj-badge-club {
    background: linear-gradient(135deg, #C6DF2B 0%, #a7c024 100%);
    color: var(--black);
    border-color: #8fa31e;
    box-shadow: 2px 2px 0 #8fa31e;
    animation: clubPulse 2s ease-in-out infinite;
}

@keyframes clubPulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.05); }
}

/* Card Body */
.pj-card-body {
    padding: 24px;
    background: var(--white);
}

.pj-card-desc {
    font-size: 15px;
    color: var(--darkgray);
    line-height: 1.6;
    margin-bottom: 16px;
}

/* Meta Info */
.pj-card-meta {
    display: flex;
    gap: 10px;
    margin-bottom: 16px;
    flex-wrap: wrap;
}

.pj-meta-item {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 6px 14px;
    background: var(--lightgray);
    border-radius: 10px;
    font-size: 13px;
    font-weight: 600;
    color: var(--black);
    border: 2px solid transparent;
    transition: all 0.2s;
}

.pj-meta-item:hover {
    border-color: var(--black);
    transform: scale(1.05);
}

.pj-meta-item i { color: var(--pink); }

/* Difficulty */
.pj-difficulty {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 16px;
}

.pj-diff-dots {
    display: flex;
    gap: 4px;
}

.pj-diff-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: #DDD;
    border: 2px solid var(--black);
}

.pj-diff-dot.active { background: var(--lime); }
.pj-diff-dot.active.medium { background: var(--orange); }
.pj-diff-dot.active.hard { background: #E74C3C; }

.pj-diff-label {
    font-size: 13px;
    font-weight: 600;
    color: var(--darkgray);
}

/* Card Footer */
.pj-card-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 18px;
    border-top: 3px dashed var(--lightgray);
    gap: 12px;
}

/* Progress */
.pj-progress {
    flex: 1;
}

.pj-progress-bar {
    height: 8px;
    background: #EEE;
    border-radius: 10px;
    overflow: hidden;
    border: 2px solid var(--black);
}

.pj-progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--lime), #9be22b);
    border-radius: 8px;
    transition: width 0.5s ease;
}

.pj-progress-text {
    font-size: 12px;
    color: var(--darkgray);
    margin-top: 6px;
    font-weight: 600;
}

/* Buttons */
.pj-card-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 24px;
    background: var(--black);
    color: var(--white);
    border-radius: 14px;
    font-weight: 700;
    font-size: 14px;
    text-decoration: none;
    border: 3px solid var(--black);
    cursor: pointer;
    font-family: 'Rubik', sans-serif;
    transition: all 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.pj-card-btn:hover {
    background: var(--pink);
    color: var(--black);
    transform: translateY(-3px);
    box-shadow: 4px 4px 0 var(--black);
}

.pj-card-btn.start {
    background: var(--lime);
    color: var(--black);
}

.pj-card-btn.start:hover {
    background: var(--pink);
    transform: translateY(-3px) scale(1.05);
    box-shadow: 4px 4px 0 var(--black);
}

.pj-card-btn.locked {
    background: var(--lightgray);
    color: var(--darkgray);
    border-color: var(--darkgray);
}

.pj-card-btn.locked:hover {
    background: var(--pink);
    color: var(--black);
    border-color: var(--black);
}

.pj-card-btn.continue {
    background: var(--orange);
    color: var(--black);
}

/* Animation */
@keyframes cardAppear {
    0% { opacity: 0; transform: translateY(20px); }
    100% { opacity: 1; transform: translateY(0); }
}

.pj-card {
    animation: cardAppear 0.5s ease-out backwards;
}

.pj-card:nth-child(1) { animation-delay: 0.05s; }
.pj-card:nth-child(2) { animation-delay: 0.1s; }
.pj-card:nth-child(3) { animation-delay: 0.15s; }
.pj-card:nth-child(4) { animation-delay: 0.2s; }
.pj-card:nth-child(5) { animation-delay: 0.25s; }
.pj-card:nth-child(6) { animation-delay: 0.3s; }

/* ========== PROMO ========== */

.pj-promo {
    max-width: 1200px;
    margin: 60px auto;
    padding: 0 20px;
}

.pj-promo-card {
    background: var(--black);
    border-radius: 30px;
    padding: 50px 40px;
    text-align: center;
    border: 4px solid var(--black);
}

.pj-promo-icon {
    font-size: 56px;
    margin-bottom: 15px;
}

.pj-promo-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: var(--pink);
    color: var(--black);
    padding: 8px 20px;
    border-radius: 50px;
    font-weight: 700;
    font-size: 14px;
    margin-bottom: 15px;
    border: 2px solid var(--black);
}

.pj-promo-title {
    font-size: 28px;
    font-weight: 800;
    color: var(--white);
    margin-bottom: 12px;
}

.pj-promo-text {
    font-size: 16px;
    color: rgba(255,255,255,0.7);
    margin-bottom: 25px;
    max-width: 500px;
    margin-left: auto;
    margin-right: auto;
}

.pj-promo-features {
    display: flex;
    justify-content: center;
    gap: 25px;
    flex-wrap: wrap;
    margin-bottom: 25px;
}

.pj-promo-feature {
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--white);
    font-size: 14px;
    font-weight: 600;
}

.pj-promo-feature i {
    color: var(--pink);
}

.pj-promo-btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 16px 32px;
    background: var(--pink);
    color: var(--black);
    border-radius: 50px;
    font-weight: 700;
    font-size: 16px;
    text-decoration: none;
    border: 3px solid var(--pink);
    transition: all 0.2s;
}

.pj-promo-btn:hover {
    background: transparent;
    color: var(--pink);
}

/* ========== EMPTY ========== */

.pj-empty {
    text-align: center;
    padding: 60px 20px;
    display: none;
}

.pj-empty-icon {
    font-size: 56px;
    opacity: 0.3;
    margin-bottom: 15px;
}

.pj-empty-title {
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 8px;
}

.pj-empty-text {
    color: var(--darkgray);
}

/* ========== RESPONSIVE ========== */

@media (max-width: 900px) {
    .pj-filters-section {
        padding: 25px 20px;
        margin: 30px 15px 40px;
        box-shadow: 6px 6px 0 var(--black);
    }

    .pj-filter-btn {
        padding: 10px 18px;
        font-size: 13px;
    }
}

@media (max-width: 768px) {
    .pj-hero {
        padding: 60px 20px;
    }

    .pj-hero-title {
        font-size: 28px;
    }

    .pj-stat-number {
        font-size: 32px;
    }

    .pj-grid {
        grid-template-columns: 1fr;
        gap: 24px;
        padding: 5px;
    }

    .pj-card:hover {
        transform: translateY(-8px);
    }

    .pj-card-header {
        height: 140px;
    }

    .pj-card-emoji {
        font-size: 52px;
    }

    .pj-promo-card {
        padding: 30px 20px;
    }
}

@media (max-width: 480px) {
    .pj-filters-section {
        padding: 16px;
        border-radius: 20px;
    }

    .pj-filter-buttons {
        gap: 8px;
    }

    .pj-filter-btn {
        padding: 8px 14px;
        font-size: 12px;
        border-radius: 12px;
        border-width: 2px;
    }

    .pj-card-body {
        padding: 18px;
    }

    .pj-card-footer {
        flex-direction: column;
        gap: 12px;
    }

    .pj-card-btn {
        width: 100%;
        justify-content: center;
    }

    .pj-card-meta {
        justify-content: center;
    }
}