html, body {
    height: 100%;
    margin: 0;
    padding: 0;
    overflow: hidden;
}

body {
    font-family: 'Segoe UI', Arial, sans-serif;
    background: #ececec;
    color: #222;
    width: 100vw;
    height: 100vh;
    box-sizing: border-box;
}

.catalog-bg {
    width: 100vw;
    height: 100vh;
    min-height: 100vh;
    min-width: 100vw;
    display: flex;
    align-items: center;
    justify-content: center;
    background: #ececec;
    padding: 0;
    box-sizing: border-box;
}

.catalog-page {
    background: #fff;
    border-radius: 24px;
    box-shadow: 0 10px 40px rgba(0,0,0,0.14), 0 2px 12px rgba(0,0,0,0.10);
    width: 1400px;
    height: 990px;
    aspect-ratio: 1.41/1;
    display: flex;
    flex-direction: column;
    gap: 18px;
    padding: 110px 56px 0 56px;
    box-sizing: border-box;
    overflow: visible;
    justify-content: flex-start;
    align-items: stretch;
    margin: 100px 0 0 0;
    position: relative;
    transform: scale(0.90);
    transform-origin: top center;
}

.catalog-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 0;
}

.catalog-header-diagonal {
    width: 100%;
    height: 110px;
    position: absolute;
    left: 0;
    right: 0;
    top: 0;
    margin-bottom: 0;
    background: linear-gradient(90deg, #e0e0e0 70%, #b0b0b0 100%);
    display: flex;
    align-items: center;
    box-shadow: 0 4px 18px rgba(80,80,80,0.10);
    z-index: 1;
    border-radius: 24px 24px 0 0;
}

.catalog-header-content {
    position: relative;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 48px;
    z-index: 10;
}

.logo img {
    height: 88px;
    max-width: 180px;
    width: auto;
    filter: drop-shadow(0 2px 8px rgba(0,0,0,0.10));
    z-index: 2;
}

.header-title {
    font-size: 2.1rem;
    color: #3b6ea5;
    font-weight: bold;
    letter-spacing: 2.5px;
    text-shadow: 0 2px 8px rgba(255,255,255,0.18), 0 1px 0 #fff;
    font-family: 'Segoe UI', Arial, sans-serif;
    z-index: 20;
    position: relative;
    background: none;
    padding: 0;
    border-radius: 0;
    box-shadow: none;
    max-width: none;
    overflow: visible;
    white-space: nowrap;
    margin-right: 60px;
}

.header-title::after {
    content: '';
    display: block;
    margin-top: 8px;
    height: 4px;
    width: 180px;
    background: linear-gradient(to left, rgba(59,110,165,0), rgba(59,110,165,0.5) 60%, #3b6ea5 100%);
    border-radius: 2px;
}

.catalog-info-box {
    background: linear-gradient(135deg, #15395c 80%, #1e4a7a 100%);
    color: #fff;
    border-radius: 16px;
    padding: 28px 22px;
    max-width: 420px;
    box-shadow: 0 4px 18px rgba(21,57,92,0.13);
    display: flex;
    flex-direction: column;
    justify-content: center;
    border-left: 6px solid #e74c3c;
    font-family: 'Segoe UI', Arial, sans-serif;
    margin-bottom: 18px;
}

.catalog-info-box h2 {
    margin: 0 0 14px 0;
    font-size: 1.35rem;
    font-weight: 800;
    letter-spacing: 0.5px;
    text-shadow: 0 2px 8px rgba(0,0,0,0.10);
}

.catalog-info-box p {
    font-size: 1.02rem;
    line-height: 1.6;
    margin: 0;
    font-weight: 400;
}

.catalog-main-image-row {
    width: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
    margin-bottom: 18px;
    position: relative;
}

.catalog-main-image-row img {
    width: 100%;
    max-width: none;
    height: 440px;
    object-fit: cover;
    border-radius: 18px;
    box-shadow: 0 4px 24px rgba(0,0,0,0.13);
    border: 4px solid #f3f3f3;
    transition: transform 0.22s, box-shadow 0.22s;
    background: #fafbfc;
    display: block;
}

.catalog-info-diagonal {
    position: absolute;
    top: 0;
    left: 0;
    height: 100%;
    width: 70%;
    min-width: 520px;
    max-width: 660px;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 2;
    background: rgba(21, 57, 92, 0.78);
    clip-path: polygon(0 0, 100% 0, 80% 100%, 0% 100%);
    box-shadow: 0 4px 24px rgba(0,0,0,0.13);
    backdrop-filter: blur(2px);
}

.catalog-info-diagonal-inner {
    color: #fff;
    padding: 38px 44px 32px 44px;
    text-align: left;
    width: 100%;
    max-height: 82%;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
    box-sizing: border-box;
}

.catalog-info-diagonal-inner h2 {
    margin: 0 0 14px 0;
    font-size: 1.35rem;
    font-weight: 800;   
    letter-spacing: 0.5px;
    text-shadow: 0 2px 8px rgba(0,0,0,0.10);
}

.catalog-info-diagonal-inner p {
    font-size: 1.02rem;
    line-height: 1.5;
    margin: 0;
    font-weight: 400;
    color: #e6eaf1;
    word-break: break-word;
}

.catalog-bottom-row {
    width: 100%;
    display: flex;
    flex-direction: row;
    justify-content: center;
    align-items: flex-start;
    gap: 32px;
    margin-top: 0;
}

.catalog-bottom-row img {
    width: 380px;
    height: 200px;
    object-fit: cover;
    border-radius: 14px;
    box-shadow: 0 4px 24px rgba(0,0,0,0.25), 0 1.5px 8px rgba(0,0,0,0.18);
    border: 3px solid #222;
    transition: transform 0.18s, box-shadow 0.18s, border-color 0.18s;
    background: #fafbfc;
}

.catalog-bottom-row img:hover {
    transform: scale(1.03);
    box-shadow: 0 8px 28px rgba(0,0,0,0.16);
    border-color: #e74c3c;
}

.catalog-footer {
    width: 100%;
    background: #a02a2f;
    text-align: right;
    padding: 18px 56px;
    font-size: 1.08rem;
    color: #fff;
    border-radius: 0 0 24px 24px;
    margin: 0;
    box-sizing: border-box;
    position: relative;
    margin-top: auto;
    left: -56px;
    right: -56px;
    width: calc(100% + 112px);
}

.catalog-footer a, .catalog-footer span {
    color: #fff !important;
    font-weight: 500;
    letter-spacing: 0.5px;
    text-decoration: none;
    font-family: 'Segoe UI', Arial, sans-serif;
    pointer-events: none;
}

@media (max-width: 1500px) {
    .catalog-page {
        width: 98vw;
        height: 98vh;
        aspect-ratio: 1.41/1;
        padding: 1vw;
    }
    .catalog-main-image-row img {
        max-width: 98vw;
        height: 180px;
    }
    .catalog-bottom-row img {
        max-width: 98vw;
        height: 70px;
    }
}

@media (max-width: 900px) {
    .catalog-main-image-row img {
        height: 80px;
    }
    .catalog-bottom-row {
        flex-direction: column;
        gap: 10px;
        align-items: center;
    }
    .catalog-bottom-row img {
        width: 90vw;
        height: 50px;
    }
    .catalog-header-diagonal {
        height: 70px;
        clip-path: polygon(0 0, 100% 0, 95% 100%, 0% 100%);
        background: linear-gradient(120deg, #e0e0e0 80%, #b0b0b0 100%);
    }
    .catalog-header-content {
        padding: 0 12px;
    }
    .logo img {
        height: 54px;
    }
    .header-title {
        font-size: 1.2rem;
        padding-left: 8px;
    }
}

/* Önceki hero ve web site stillerini kaldırıyorum */
.hero, .hero-img, .hero-overlay, .hero-content, .hero-content h1, .hero-content p, main, .project-gallery, .project-gallery-bottom {
    display: none !important;
}

.catalog-pagination-fixed {
    position: fixed;
    right: 32px;
    bottom: 32px;
    display: flex;
    align-items: center;
    gap: 18px;
    background: rgba(255,255,255,0.96);
    border-radius: 32px;
    box-shadow: 0 4px 24px rgba(0,0,0,0.13);
    padding: 10px 24px;
    z-index: 9999;
}

.pagination-btn {
    background: #3b6ea5;
    color: #fff;
    border: none;
    border-radius: 50%;
    width: 38px;
    height: 38px;
    font-size: 1.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: background 0.18s, box-shadow 0.18s;
    box-shadow: 0 2px 8px rgba(59,110,165,0.10);
}

.pagination-btn:hover {
    background: #a02a2f;
    color: #fff;
}

.pagination-page {
    font-size: 1.15rem;
    font-weight: 600;
    color: #3b6ea5;
    letter-spacing: 1px;
    min-width: 60px;
    text-align: center;
}

.cover-logo-center {
    width: 100%;
    height: 600px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.cover-logo-big {
    max-width: 420px;
    width: 100%;
    height: auto;
    display: block;
    filter: drop-shadow(0 4px 24px rgba(0,0,0,0.13));
}

.about-content-row {
    display: flex;
    flex-direction: row;
    align-items: center;
    justify-content: center;
    gap: 48px;
    margin: 48px 0 48px 0;
}

.about-text-box {
    flex: 2;
    background: #f7f7f7;
    border-radius: 16px;
    padding: 38px 32px;
    box-shadow: 0 2px 12px rgba(0,0,0,0.07);
    font-size: 1.15rem;
    color: #222;
    min-width: 320px;
    max-width: 600px;
}

.about-text-box h2 {
    margin-top: 0;
    font-size: 1.5rem;
    color: #3b6ea5;
    font-weight: 700;
    margin-bottom: 18px;
}

.about-image-box {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
}

.about-image-box img {
    max-width: 520px;
    width: 100%;
    height: 450px;
    border-radius: 14px;
    box-shadow: 0 4px 24px rgba(0,0,0,0.13);
    object-fit: cover;
}

.cover-slogan-box {
    display: flex;
    flex-direction: column;
    align-items: center;
    margin-top: 32px;
    gap: 10px;
}

.cover-slogan {
    font-size: 2.1rem;
    font-weight: 700;
    color: #3b6ea5;
    letter-spacing: 1.5px;
    background: rgba(255,255,255,0.85);
    padding: 12px 36px;
    border-radius: 32px;
    box-shadow: 0 2px 12px rgba(59,110,165,0.08);
    text-align: center;
    font-family: 'Segoe UI', Arial, sans-serif;
    text-shadow: 0 2px 8px rgba(0,0,0,0.07);
}

.cover-year {
    font-size: 1.3rem;
    font-weight: 600;
    color: #a02a2f;
    letter-spacing: 2px;
    margin-top: 4px;
    background: #fff;
    padding: 6px 28px;
    border-radius: 18px;
    box-shadow: 0 1px 6px rgba(160,42,47,0.08);
    font-family: 'Segoe UI', Arial, sans-serif;
}