/* Cards Grid - Ana Sayfa - 5 SÜTUNLU, BÜYÜK VE BELİRGİN GÖLGELİ */
.cards-container {
    max-width: 1400px;
    margin: 3rem auto;
    padding: 0 1rem;
}

.card-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 1rem; /* Biraz daha fazla gap */
    margin-bottom: 4rem;
}

/* Kartlar - Biraz Büyük ve Belirgin Gölgeli */
.card {
    background: var(--white);
    border-radius: var(--radius-lg); /* Biraz daha yuvarlak */
    padding: 1.25rem; /* Daha fazla padding */
    text-align: center;
    box-shadow: 
        0 4px 8px rgba(0, 0, 0, 0.08), /* Daha belirgin üst gölge */
        0 6px 16px rgba(219, 0, 0, 0.12), /* Daha belirgin kırmızı gölge */
        inset 0 1px 0 rgba(255, 255, 255, 0.8); /* İç gölge efekti */
    transition: all var(--transition-normal);
    border: 1px solid var(--gray-200); /* Biraz daha belirgin border */
    position: relative;
    overflow: hidden;
    cursor: pointer;
    text-decoration: none;
    color: inherit;
    display: block;
    height: 100%;
}

/* Üstte ince kırmızı çizgi - biraz kalınlaştıralım */
.card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px; /* Kalınlaştırdık */
    background: var(--gradient-primary); /* Gradient kullanalım */
    transition: height var(--transition-normal);
}

.card:hover {
    transform: translateY(-4px); /* Daha fazla yükselme */
    box-shadow: 
        0 8px 16px rgba(0, 0, 0, 0.1), /* Hover'da daha belirgin */
        0 12px 24px rgba(219, 0, 0, 0.15), /* Daha belirgin kırmızı gölge */
        inset 0 1px 0 rgba(255, 255, 255, 0.9);
    border-color: rgba(219, 0, 0, 0.2); /* Hover'da kırmızımsı border */
}

.card:hover::before {
    height: 4px;
}

/* SVG İkonları - Biraz Büyütelim */
.card-icon {
    margin-bottom: 0.875rem;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 48px; /* Daha yüksek */
}

.card-icon img {
    width: 34px; /* Büyüttük */
    height: 34px; /* Büyüttük */
    transition: all var(--transition-normal);
    filter: brightness(0.9);
}

.card:hover .card-icon img {
    transform: scale(1.12); /* Daha belirgin büyüme */
    filter: brightness(1);
}

.card-title {
    font-size: 1rem; /* Büyüttük */
    font-weight: 600;
    color: var(--gray-900);
    margin-bottom: 0.5rem;
    line-height: 1.3;
    min-height: 2.6rem; /* Biraz daha yüksek */
    display: flex;
    align-items: center;
    justify-content: center;
}

.card-description {
    color: var(--gray-600);
    line-height: 1.4;
    font-size: 0.8rem; /* Biraz büyüttük */
    margin-bottom: 0;
}

/* Alt Gölge Efekti - Daha Belirgin ve Sık */
.card::after {
    content: '';
    position: absolute;
    bottom: -6px;
    left: 10%; /* Daha dar alanda */
    right: 10%; /* Daha dar alanda */
    height: 10px; /* Biraz daha yüksek */
    background: rgba(219, 0, 0, 0.08); /* Daha belirgin kırmızılık */
    border-radius: 50%;
    filter: blur(6px); /* Biraz daha belirgin blur */
    z-index: -1;
    transition: all var(--transition-normal);
    opacity: 0.8; /* Daha görünür */
}

.card:hover::after {
    opacity: 1;
    bottom: -8px;
    height: 12px;
    filter: blur(8px);
    background: rgba(219, 0, 0, 0.12);
    left: 8%; /* Hover'da daha da dar alanda */
    right: 8%; /* Hover'da daha da dar alanda */
}

/* Ekstra gölge katmanı için daha sık ve dar gölge */
.card .shadow-layer {
    position: absolute;
    bottom: -3px;
    left: 15%;
    right: 15%;
    height: 6px;
    background: rgba(0, 0, 0, 0.05);
    border-radius: 50%;
    filter: blur(4px);
    z-index: -2;
    opacity: 0.6;
}

/* Responsive Design - 5'ten 4, 3, 2, 1'e */
@media (max-width: 1400px) {
    .cards-container {
        max-width: 1200px;
    }
    
    .card-grid {
        grid-template-columns: repeat(4, 1fr);
        gap: 1rem;
    }
}

@media (max-width: 1200px) {
    .cards-container {
        max-width: 1000px;
    }
    
    .card-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: 1rem;
    }
}

@media (max-width: 992px) {
    .cards-container {
        max-width: 100%;
        padding: 0 0.75rem;
    }
    
    .card-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: 0.875rem;
    }
    
    .card {
        padding: 1.125rem;
    }
    
    .card-icon img {
        width: 32px;
        height: 32px;
    }
    
    .card-title {
        font-size: 0.95rem;
        min-height: 2.4rem;
    }
    
    .card-description {
        font-size: 0.78rem;
    }
}

@media (max-width: 768px) {
    .cards-container {
        padding: 0 0.5rem;
        margin: 1.5rem auto;
    }
    
    .card-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 0.875rem;
    }
    
    .card {
        padding: 1rem;
    }
    
    .card-icon {
        margin-bottom: 0.75rem;
        height: 44px;
    }
    
    .card-icon img {
        width: 30px;
        height: 30px;
    }
    
    .card-title {
        font-size: 0.9rem;
        min-height: 2.2rem;
        margin-bottom: 0.375rem;
    }
    
    .card-description {
        font-size: 0.75rem;
        line-height: 1.35;
    }
}

@media (max-width: 576px) {
    .card-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 0.75rem;
    }
    
    .card {
        padding: 0.875rem;
    }
    
    .card-icon {
        height: 40px;
    }
    
    .card-icon img {
        width: 28px;
        height: 28px;
    }
    
    .card-title {
        font-size: 0.85rem;
        min-height: 2rem;
    }
    
    .card-description {
        font-size: 0.72rem;
    }
}

@media (max-width: 480px) {
    .card-grid {
        grid-template-columns: 1fr;
        gap: 0.875rem;
    }
    
    .card {
        padding: 1.25rem;
        max-width: 300px;
        margin: 0 auto;
    }
    
    .card-icon {
        height: 44px;
    }
    
    .card-icon img {
        width: 32px;
        height: 32px;
    }
    
    .card-title {
        font-size: 0.95rem;
        min-height: auto;
    }
    
    .card-description {
        font-size: 0.8rem;
    }
}

/* Features Section - Ayarlanmış */
.cards-features {
    margin-top: 4rem;
}

.cards-features h2 {
    text-align: center;
    font-size: clamp(1.75rem, 3vw, 2.25rem);
    font-weight: 600;
    color: var(--gray-900);
    margin-bottom: 2rem;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 1.25rem;
}

.feature-item {
    background: var(--white);
    padding: 1.5rem;
    border-radius: var(--radius-lg);
    text-align: center;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
    transition: all var(--transition-normal);
    border: 1px solid var(--gray-100);
    position: relative;
    overflow: hidden;
}

.feature-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--gradient-primary);
}

.feature-item:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 20px rgba(219, 0, 0, 0.12);
}

.feature-icon {
    font-size: 1.5rem;
    margin-bottom: 0.75rem;
    color: var(--primary-green);
}

.feature-text h3 {
    color: var(--gray-900);
    margin-bottom: 0.5rem;
    font-size: 1.125rem;
    font-weight: 600;
}

.feature-text p {
    color: var(--gray-600);
    line-height: 1.4;
    font-size: 0.85rem;
}

/* Upload Card - Ayarlanmış */
.upload-card {
    background: var(--white);
    border-radius: var(--radius-lg);
    padding: 1.75rem;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
    margin: 2.5rem auto;
    max-width: 700px;
    border: 1px solid var(--gray-100);
}

.file-label {
    border: 1.5px dashed var(--gray-300);
    border-radius: var(--radius-md);
    padding: 1.75rem;
    text-align: center;
    cursor: pointer;
    transition: all var(--transition-normal);
    background: var(--gray-50);
    margin-bottom: 1.5rem;
}

.file-label:hover {
    border-color: var(--primary-green);
    background: var(--light-green);
}

.file-label.dragover {
    border-color: var(--primary-green);
    background: var(--light-green);
}

.file-text {
    font-size: 0.95rem;
    color: var(--gray-800);
}

.file-text strong {
    display: block;
    margin-bottom: 0.5rem;
    font-size: 1.1rem;
}

.file-text small {
    color: var(--gray-500);
    font-size: 0.85rem;
}

.format-options {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
    gap: 0.75rem;
    margin: 1.5rem 0;
}

.format-option input[type="radio"] {
    display: none;
}

.format-option label {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 1rem 0.75rem;
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-normal);
    text-align: center;
    background: var(--white);
}

.format-option label:hover {
    border-color: var(--primary-green);
    background: var(--light-green);
}

.format-option input[type="radio"]:checked + label {
    border-color: var(--primary-green);
    background: var(--light-green);
}

.format-icon {
    font-size: 1.25rem;
    margin-bottom: 0.5rem;
    color: var(--primary-green);
}

.format-name {
    font-weight: 600;
    color: var(--gray-800);
    margin-bottom: 0.25rem;
    font-size: 0.9rem;
}

.format-desc {
    font-size: 0.8rem;
    color: var(--gray-500);
}

/* Ek stiller */
.cards-header {
    text-align: center;
    margin-bottom: 2rem;
}

.cards-header h1 {
    font-size: clamp(1.75rem, 4vw, 2.25rem);
    font-weight: 600;
    color: var(--gray-900);
    margin-bottom: 0.75rem;
}

.cards-header p {
    color: var(--gray-600);
    font-size: 0.9rem;
    max-width: 500px;
    margin: 0 auto;
    line-height: 1.5;
}

/* Kart hover efekti için optimizasyon */
.card {
    will-change: transform, box-shadow;
    transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}

.card:hover {
    transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
}

/* SVG ikonları için optimize edilmiş stil */
.card-icon img {
    will-change: transform;
    transition: transform 0.2s ease, filter 0.2s ease;
}

.card:hover .card-icon img {
    transition: transform 0.3s ease, filter 0.3s ease;
}

/* Grid item'ları için eşit yükseklik */
.card-grid {
    align-items: stretch;
}

.card {
    display: flex;
    flex-direction: column;
}

.card-description {
    flex-grow: 1;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* Ekstra 5 sütun için büyük ekranlarda */
@media (min-width: 1600px) {
    .cards-container {
        max-width: 1500px;
    }
    
    .card-grid {
        gap: 1.125rem;
    }
}