.hero-section {
    position: relative;
    padding: 110px 0 90px;
    background:
        radial-gradient(circle at top left, rgba(18,59,99,0.07), transparent 36%),
        linear-gradient(180deg, #ffffff 0%, #f7fafc 100%);
    overflow: hidden;
}

.hero-section::after {
    content: '';
    position: absolute;
    right: -120px;
    top: -120px;
    width: 340px;
    height: 340px;
    border-radius: 50%;
    background: rgba(216, 166, 79, 0.08);
    filter: blur(10px);
}

.page-hero {
    padding: 86px 0 62px;
    background:
        linear-gradient(180deg, #ffffff 0%, #f8fafc 100%);
    border-bottom: 1px solid var(--color-border);
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 38px;
    padding: 8px 16px;
    border-radius: 999px;
    background: rgba(18, 59, 99, 0.08);
    color: var(--color-primary);
    font-size: 13px;
    font-weight: 700;
    letter-spacing: 0.02em;
    margin-bottom: 20px;
}

.hero-title,
.page-title {
    max-width: 900px;
    font-size: 56px;
    line-height: 1.08;
    letter-spacing: -0.03em;
    margin-bottom: 20px;
    color: var(--color-accent);
}

.hero-subtitle,
.page-subtitle {
    max-width: 820px;
    font-size: 18px;
    color: var(--color-muted-text);
    line-height: 1.8;
}

.section {
    padding: 84px 0;
}

.section-title {
    font-size: 38px;
    line-height: 1.14;
    letter-spacing: -0.03em;
    margin-bottom: 14px;
    color: var(--color-accent);
}

.section-title--sm {
    font-size: 28px;
    margin-bottom: 16px;
}

.section-subtitle {
    max-width: 760px;
    color: var(--color-muted-text);
    margin-bottom: 24px;
    font-size: 17px;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 52px;
    padding: 14px 24px;
    border-radius: var(--radius-button);
    background: var(--color-primary);
    color: #fff;
    font-weight: 700;
    border: 1px solid transparent;
    box-shadow: 0 10px 24px rgba(18, 59, 99, 0.16);
}

.btn:hover {
    transform: translateY(-1px);
    opacity: 0.96;
}

/* HOME / CONTENT */
.section-content {
    color: var(--color-text);
    font-size: 16px;
    line-height: 1.8;
}

.section-content p + p {
    margin-top: 14px;
}

.section-content ul,
.section-content ol {
    padding-left: 20px;
    margin-top: 12px;
}

.section-content li + li {
    margin-top: 8px;
}

.content-card-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.content-card {
    padding: 28px;
}

.content-card h3 {
    font-size: 22px;
    line-height: 1.2;
    margin-bottom: 12px;
    color: var(--color-accent);
}

.content-card p {
    color: var(--color-muted-text);
}

/* PROJECTS */
.project-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.project-card {
    overflow: hidden;
}

.project-card__image {
    position: relative;
    overflow: hidden;
}

.project-card__image img {
    width: 100%;
    height: 260px;
    object-fit: cover;
    transition: transform 0.45s ease;
}

.project-card:hover .project-card__image img {
    transform: scale(1.04);
}

.project-card__body {
    padding: 24px;
}

.project-card h3 {
    margin-bottom: 12px;
    font-size: 26px;
    line-height: 1.15;
    letter-spacing: -0.02em;
    color: var(--color-accent);
}

.project-card p {
    color: var(--color-muted-text);
    line-height: 1.75;
}

/* PROJECT DETAIL */
.project-cover-box {
    margin-bottom: 30px;
    display: flex;
    justify-content: center;
}

.project-cover-box img {
    width: 100%;
    max-width: 1540px;     /* genişliği sınırla */
    max-height: 588px;     /* yüksekliği küçült */
    object-fit: contain;   /* kırpma yok */
    border-radius: var(--radius-card);
    box-shadow: var(--shadow-soft);
}

.project-gallery-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 18px;
    margin-bottom: 30px;
}

.project-gallery-item img {
    width: 100%;
    height: 190px;
    object-fit: cover;
    border-radius: 14px;
    border: 1px solid var(--color-border);
    box-shadow: var(--shadow-soft);
}

.project-detail-layout {
    display: grid;
    grid-template-columns: minmax(0, 2fr) minmax(320px, 1fr);
    gap: 30px;
    align-items: start;
}

.project-detail-card + .project-detail-card {
    margin-top: 24px;
}

.project-detail-card {
    padding: 28px;
}

.project-detail-content {
    color: var(--color-text);
    line-height: 1.85;
}

.project-info-card {
    padding: 28px;
    position: sticky;
    top: 110px;
}

.project-info-card h3 {
    margin-bottom: 18px;
    font-size: 24px;
    color: var(--color-accent);
}

.project-info-list {
    list-style: none;
    margin: 0;
    padding: 0;
}

.project-info-list li {
    display: flex;
    flex-direction: column;
    gap: 6px;
    padding: 16px 0;
    border-bottom: 1px solid var(--color-border);
}

.project-info-list li:last-child {
    border-bottom: none;
}

.project-info-list span {
    color: var(--color-muted-text);
    font-size: 14px;
}

.project-info-list strong {
    color: var(--color-accent);
    font-size: 16px;
}

.project-info-card__action {
    margin-top: 24px;
}

.project-map-frame iframe {
    width: 100%;
    min-height: 400px;
    border: 0;
    border-radius: 16px;
}

/* CONTACT */
.contact-layout {
    display: grid;
    grid-template-columns: minmax(0, 2fr) minmax(320px, 1fr);
    gap: 30px;
    align-items: start;
}

.frontend-form-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 18px;
}

.frontend-form-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.frontend-form-group--full {
    grid-column: 1 / -1;
}

.frontend-form input,
.frontend-form textarea,
.frontend-form select {
    width: 100%;
    min-height: 50px;
    padding: 12px 14px;
    border: 1px solid var(--color-border);
    border-radius: 12px;
    background: #fff;
    color: var(--color-text);
    font: inherit;
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.frontend-form textarea {
    min-height: 140px;
    resize: vertical;
}

.frontend-form input:focus,
.frontend-form textarea:focus,
.frontend-form select:focus {
    outline: none;
    border-color: rgba(18, 59, 99, 0.35);
    box-shadow: 0 0 0 4px rgba(18, 59, 99, 0.08);
}

.frontend-form-actions {
    margin-top: 22px;
}

.frontend-checkbox {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    line-height: 1.6;
}

/* MISC */
.content-card,
.project-card {
    border-radius: var(--radius-card);
    box-shadow: var(--shadow-soft);
}

.content-card:hover,
.project-card:hover {
    box-shadow: 0 20px 44px rgba(15, 27, 39, 0.10);
}

.about-section-block,
.system-section-block {
    display: flex;
    flex-direction: column;
    gap: 22px;
}

.about-section-block__head,
.system-section-block__head {
    max-width: 860px;
}

.about-content-card,
.system-content-card {
    padding: 30px;
}

.system-section-block--timeline .system-content-card {
    background:
        linear-gradient(180deg, #ffffff 0%, #f8fafc 100%);
}

.system-content-card--wide .section-content {
    max-width: 980px;
}

.hero-actions {
    display: flex;
    align-items: center;
    gap: 14px;
    margin-top: 30px;
    flex-wrap: wrap;
}

.hero-secondary-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 52px;
    padding: 14px 24px;
    border-radius: var(--radius-button);
    border: 1px solid var(--color-border);
    background: #fff;
    color: var(--color-accent);
    font-weight: 700;
}

.hero-secondary-btn:hover {
    border-color: rgba(18, 59, 99, 0.20);
    color: var(--color-primary);
}

.section-soft {
    background: linear-gradient(180deg, #ffffff 0%, #f8fafc 100%);
}

.section-intro {
    margin-bottom: 30px;
}

.section-intro--row {
    display: flex;
    align-items: end;
    justify-content: space-between;
    gap: 20px;
}

.section-cta-row {
    margin-top: 24px;
}

.stats-strip {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}

.stats-strip__item {
    background: #fff;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-card);
    box-shadow: var(--shadow-soft);
    padding: 28px 22px;
    text-align: center;
}

.stats-strip__item strong {
    display: block;
    font-size: 34px;
    line-height: 1;
    color: var(--color-accent);
    margin-bottom: 10px;
    letter-spacing: -0.03em;
}

.stats-strip__item span {
    color: var(--color-muted-text);
    font-weight: 600;
}

.cta-banner {
    display: grid;
    grid-template-columns: minmax(0, 2fr) auto;
    align-items: center;
    gap: 24px;
    padding: 34px;
    border-radius: var(--radius-card);
    border: 1px solid var(--color-border);
    box-shadow: var(--shadow-soft);
    background:
        radial-gradient(circle at top right, rgba(216,166,79,0.10), transparent 30%),
        linear-gradient(135deg, #ffffff 0%, #f8fafc 100%);
}

.cta-banner__content h2 {
    font-size: 34px;
    line-height: 1.15;
    letter-spacing: -0.03em;
    color: var(--color-accent);
    margin-bottom: 12px;
}

.cta-banner__content p {
    color: var(--color-muted-text);
    max-width: 760px;
}

.cta-banner__actions {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

/* TOPBAR */
.topbar {
    background: #0f1b27;
    color: #fff;
    font-size: 13px;
}

.topbar-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 8px 0;
}

.topbar-left span {
    margin-right: 16px;
    opacity: 0.9;
}

.topbar-right {
    opacity: 0.8;
}

/* HEADER */
.header-main {
    background: #fff;
    border-bottom: 1px solid var(--color-border);
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 14px 0;
}

/* LOGO */
.logo-area {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
}

.logo-area img {
    height: 42px;
}

.logo-text strong {
    display: block;
    font-size: 16px;
    color: var(--color-accent);
}

.logo-text span {
    font-size: 12px;
    color: var(--color-muted-text);
}

/* MENU */
.main-nav {
    display: flex;
    gap: 26px;
}

.main-nav a {
    font-weight: 600;
    color: var(--color-text);
    position: relative;
}

.main-nav a.active,
.main-nav a:hover {
    color: var(--color-accent);
}

.main-nav a.active::after {
    content: "";
    position: absolute;
    bottom: -6px;
    left: 0;
    width: 100%;
    height: 2px;
    background: var(--color-primary);
}

.project-page-hero {
    padding-bottom: 46px;
}

.project-hero-mini-stats {
    margin-top: 28px;
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 18px;
}

.project-hero-mini-stats__item {
    background: #fff;
    border: 1px solid var(--color-border);
    border-radius: 16px;
    box-shadow: var(--shadow-soft);
    padding: 18px 18px 16px;
}

.project-hero-mini-stats__item span {
    display: block;
    font-size: 13px;
    color: var(--color-muted-text);
    margin-bottom: 8px;
}

.project-hero-mini-stats__item strong {
    display: block;
    font-size: 17px;
    color: var(--color-accent);
    line-height: 1.25;
}

.project-section-head {
    margin-bottom: 22px;
}

.project-info-card__note {
    margin-top: 20px;
    padding: 16px;
    border-radius: 14px;
    background: linear-gradient(180deg, #f8fafc 0%, #ffffff 100%);
    border: 1px solid var(--color-border);
    color: var(--color-muted-text);
    line-height: 1.7;
}

.project-cta-banner {
    display: grid;
    grid-template-columns: minmax(0, 2fr) auto;
    gap: 24px;
    align-items: center;
    background:
        radial-gradient(circle at top right, rgba(216,166,79,0.10), transparent 30%),
        linear-gradient(135deg, #ffffff 0%, #f8fafc 100%);
}

.project-cta-banner__content h3 {
    font-size: 30px;
    line-height: 1.15;
    letter-spacing: -0.03em;
    color: var(--color-accent);
    margin: 10px 0 12px;
}

.project-cta-banner__content p {
    color: var(--color-muted-text);
    max-width: 760px;
}

.project-cta-banner__actions {
    display: flex;
    align-items: center;
    justify-content: flex-end;
}

.hero-section--with-image .hero-badge {
    background: rgba(255,255,255,0.14);
    color: #fff;
}

.hero-section--with-image .hero-title,
.hero-section--with-image .hero-subtitle {
    color: #fff;
}

.hero-section--with-image .hero-subtitle {
    max-width: 760px;
}

.hero-section--with-image .hero-secondary-btn {
    background: rgba(255,255,255,0.12);
    border-color: rgba(255,255,255,0.26);
    color: #fff;
}

.hero-section--with-image .hero-secondary-btn:hover {
    background: rgba(255,255,255,0.18);
    color: #fff;
}

/* =========================================================
   INNER PAGE HERO STANDARD
   Ana sayfa hero mantığını iç sayfalara taşır
========================================================= */

.page-hero {
    position: relative;
    padding: 110px 0 90px;
    background:
        linear-gradient(180deg, #ffffff 0%, #f8fafc 100%);
    border-bottom: 1px solid var(--color-border);
    overflow: hidden;
}

.page-hero--managed {
    position: relative;
}

.page-hero--managed.page-hero--with-image {
    background-image:
        linear-gradient(
            rgba(15, 27, 39, var(--page-hero-overlay, 0.35)),
            rgba(15, 27, 39, var(--page-hero-overlay, 0.35))
        ),
        var(--page-hero-bg-image);
    background-size: cover;
    background-position: center 42%;
    background-repeat: no-repeat;
    border-bottom: none;
}

.page-hero--managed.page-hero--with-image .hero-badge {
    background: rgba(255,255,255,0.14);
    color: #fff;
}

.page-hero--managed.page-hero--with-image .page-title,
.page-hero--managed.page-hero--with-image .page-subtitle {
    color: #fff;
}

.page-hero--managed.page-hero--with-image .page-subtitle {
    max-width: 760px;
}

.page-hero__content {
    position: relative;
    z-index: 2;
}

.page-hero__actions,
.hero-actions {
    display: flex;
    align-items: center;
    gap: 14px;
    margin-top: 30px;
    flex-wrap: wrap;
}

.page-hero--managed.page-hero--with-image .hero-secondary-btn {
    background: rgba(255,255,255,0.12);
    border-color: rgba(255,255,255,0.26);
    color: #fff;
}

.page-hero--managed.page-hero--with-image .hero-secondary-btn:hover {
    background: rgba(255,255,255,0.18);
    color: #fff;
}

.page-hero--managed:not(.page-hero--with-image) .hero-secondary-btn {
    background: #fff;
    border: 1px solid var(--color-border);
    color: var(--color-accent);
}

.page-hero--managed:not(.page-hero--with-image) .hero-secondary-btn:hover {
    border-color: rgba(18, 59, 99, 0.20);
    color: var(--color-primary);
}

.about-page-hero,
.system-page-hero,
.projects-page-hero,
.contact-page-hero {
    min-height: 420px;
    display: flex;
    align-items: center;
}

@media (max-width: 992px) {
    .page-hero {
        padding: 88px 0 70px;
    }

    .about-page-hero,
    .system-page-hero,
    .projects-page-hero,
    .contact-page-hero {
        min-height: 360px;
    }

    .page-hero--managed.page-hero--with-image {
        background-position: center center;
    }
}

@media (max-width: 768px) {
    .page-hero {
        padding: 72px 0 56px;
    }

    .about-page-hero,
    .system-page-hero,
    .projects-page-hero,
    .contact-page-hero {
        min-height: 300px;
    }

    .page-hero__actions,
    .hero-actions {
        flex-direction: column;
        align-items: stretch;
    }

    .page-hero__actions .btn,
    .page-hero__actions .hero-secondary-btn,
    .hero-actions .btn,
    .hero-actions .hero-secondary-btn {
        width: 100%;
    }
}