/* Guides Index Page Styles */

/* Hero Section */
.guides-hero {
    position: relative;
    padding: 140px 0 100px;
    overflow: hidden;
    min-height: 500px;
}

.guides-hero .hero-background {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 1;
}

.guides-hero .hero-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
}

.guides-hero .hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.95) 0%, rgba(118, 75, 162, 0.9) 100%);
    z-index: 2;
}

.guides-hero .hero-content {
    position: relative;
    z-index: 3;
    text-align: center;
    color: white;
}

.guides-hero .hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.625rem 1.25rem;
    background: rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(10px);
    border-radius: 50px;
    font-size: 0.875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 2rem;
    border: 1px solid rgba(255, 255, 255, 0.3);
}

.guides-hero .hero-title {
    font-size: 3.5rem;
    font-weight: 800;
    margin-bottom: 1.5rem;
    line-height: 1.2;
}

.guides-hero .hero-title .highlight {
    display: block;
    background: linear-gradient(90deg, #fff 0%, rgba(255,255,255,0.8) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.guides-hero .hero-subtitle {
    font-size: 1.25rem;
    margin-bottom: 3rem;
    opacity: 0.95;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
    line-height: 1.6;
}

.hero-stats {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 2rem;
    margin-top: 3rem;
}

.stat-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1.5rem 2rem;
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(10px);
    border-radius: 16px;
    border: 1px solid rgba(255, 255, 255, 0.2);
    transition: all 0.3s ease;
}

.stat-item:hover {
    background: rgba(255, 255, 255, 0.25);
    transform: translateY(-5px);
}

.stat-icon {
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 12px;
    font-size: 1.5rem;
}

.stat-content {
    text-align: left;
}

.stat-number {
    font-size: 2rem;
    font-weight: 800;
    color: white;
    line-height: 1;
    margin-bottom: 0.25rem;
}

.stat-label {
    font-size: 0.875rem;
    color: rgba(255, 255, 255, 0.9);
    font-weight: 500;
}

.stat-divider {
    width: 1px;
    height: 40px;
    background: rgba(255, 255, 255, 0.3);
}

/* Filter Section */
.guides-filter {
    background: white;
    padding: 2rem 0;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
    position: sticky;
    top: 70px;
    z-index: 100;
}

.filter-bar {
    display: flex;
    gap: 2rem;
    align-items: center;
    flex-wrap: wrap;
}

.search-box {
    position: relative;
    flex: 1;
    min-width: 250px;
}

.search-box i {
    position: absolute;
    left: 1rem;
    top: 50%;
    transform: translateY(-50%);
    color: #94a3b8;
    font-size: 1rem;
}

.search-box input {
    width: 100%;
    padding: 0.875rem 1rem 0.875rem 3rem;
    border: 2px solid #e2e8f0;
    border-radius: 12px;
    font-size: 1rem;
    transition: all 0.3s ease;
}

.search-box input:focus {
    outline: none;
    border-color: #667eea;
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

.filter-buttons {
    display: flex;
    gap: 0.75rem;
    flex-wrap: wrap;
}

.filter-btn {
    padding: 0.75rem 1.5rem;
    border: 2px solid #e2e8f0;
    background: white;
    border-radius: 12px;
    font-size: 0.95rem;
    font-weight: 600;
    color: #64748b;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.filter-btn:hover {
    border-color: #667eea;
    color: #667eea;
    transform: translateY(-2px);
}

.filter-btn.active {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-color: #667eea;
    color: white;
}

.filter-btn i {
    font-size: 1rem;
}

/* Guides Grid */
.guides-grid {
    padding: 4rem 0;
    background: #f8fafc;
}

.guides-container {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 2rem;
}

.guide-card {
    background: white;
    border-radius: 16px;
    overflow: hidden;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
    transition: all 0.3s ease;
    position: relative;
    display: flex;
    flex-direction: column;
}

.guide-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    transform: scaleX(0);
    transition: transform 0.3s ease;
    z-index: 1;
}

.guide-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 24px rgba(0, 0, 0, 0.15);
}

.guide-card:hover::before {
    transform: scaleX(1);
}

.card-badge {
    position: absolute;
    top: 1rem;
    left: 1rem;
    z-index: 2;
    display: inline-block;
    padding: 0.375rem 0.875rem;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    backdrop-filter: blur(10px);
}

.card-badge.concepts {
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.95) 0%, rgba(118, 75, 162, 0.95) 100%);
    color: white;
}

.card-badge.how-to {
    background: linear-gradient(135deg, rgba(240, 147, 251, 0.95) 0%, rgba(245, 87, 108, 0.95) 100%);
    color: white;
}

.card-badge.calculators {
    background: linear-gradient(135deg, rgba(79, 172, 254, 0.95) 0%, rgba(0, 242, 254, 0.95) 100%);
    color: white;
}

.card-badge.tips {
    background: linear-gradient(135deg, rgba(67, 233, 123, 0.95) 0%, rgba(56, 249, 215, 0.95) 100%);
    color: white;
}

.card-image {
    width: 100%;
    height: 200px;
    overflow: hidden;
    position: relative;
}

.card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.guide-card:hover .card-image img {
    transform: scale(1.1);
}

.card-title {
    font-size: 1.25rem;
    font-weight: 700;
    color: #1e293b;
    margin: 1.5rem 1.5rem 0.75rem;
    line-height: 1.4;
    min-height: 3.5rem;
}

.card-description {
    color: #64748b;
    font-size: 0.95rem;
    line-height: 1.6;
    margin: 0 1.5rem 1rem;
    flex-grow: 1;
}

.card-meta {
    display: flex;
    gap: 1.5rem;
    margin: 0 1.5rem 1rem;
    padding-top: 1rem;
    border-top: 1px solid #e2e8f0;
}

.card-meta span {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.875rem;
    color: #64748b;
}

.card-meta i {
    color: #94a3b8;
}

.card-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    color: #667eea;
    font-weight: 600;
    font-size: 0.95rem;
    text-decoration: none;
    transition: all 0.3s ease;
    margin: 0 1.5rem 1.5rem;
}

.card-link:hover {
    gap: 0.75rem;
    color: #764ba2;
}

.card-link i {
    transition: transform 0.3s ease;
}

.card-link:hover i {
    transform: translateX(4px);
}

/* No Results */
.no-results {
    text-align: center;
    padding: 4rem 2rem;
}

.no-results i {
    font-size: 4rem;
    color: #cbd5e1;
    margin-bottom: 1.5rem;
}

.no-results h3 {
    font-size: 1.5rem;
    color: #475569;
    margin-bottom: 0.5rem;
}

.no-results p {
    color: #94a3b8;
    font-size: 1rem;
}

/* Responsive Design */
@media (max-width: 768px) {
    .guides-hero {
        padding: 100px 0 60px;
        min-height: 400px;
    }

    .guides-hero .hero-title {
        font-size: 2.5rem;
    }

    .guides-hero .hero-subtitle {
        font-size: 1.1rem;
    }

    .hero-stats {
        flex-direction: column;
        gap: 1rem;
    }

    .stat-item {
        width: 100%;
        max-width: 300px;
        margin: 0 auto;
    }

    .stat-divider {
        display: none;
    }

    .filter-bar {
        flex-direction: column;
        align-items: stretch;
    }

    .search-box {
        width: 100%;
    }

    .filter-buttons {
        justify-content: center;
    }

    .guides-container {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }

    .guides-filter {
        position: relative;
        top: 0;
    }

    .card-image {
        height: 180px;
    }

    .card-title {
        min-height: auto;
    }
}

@media (max-width: 480px) {
    .guides-hero .hero-title {
        font-size: 2rem;
    }

    .guides-hero .hero-badge {
        font-size: 0.75rem;
        padding: 0.5rem 1rem;
    }

    .hero-stats {
        flex-direction: column;
        gap: 1rem;
    }

    .stat-item {
        padding: 1rem 1.5rem;
    }

    .stat-icon {
        width: 40px;
        height: 40px;
        font-size: 1.25rem;
    }

    .stat-number {
        font-size: 1.75rem;
    }

    .filter-btn {
        font-size: 0.875rem;
        padding: 0.625rem 1.25rem;
    }

    .card-image {
        height: 160px;
    }
}