* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: Arial, Helvetica, sans-serif;
    background: black;
    color: white;
    overflow-x: hidden;
}

/* LOADER */

.loader {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    background: black;

    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;

    z-index: 9999;

    animation: loaderFade 1s ease forwards;
    animation-delay: 3s;
}

.loader-logo {
    width: 220px;
    margin-bottom: 30px;

    opacity: 0;

    animation: logoAppear 2s ease forwards;
}

.loader-line {
    width: 0;
    height: 2px;
    background: white;

    animation: lineLoad 2s ease forwards;
    animation-delay: 1s;
}

@keyframes logoAppear {
    from {
        opacity: 0;
        transform: translateY(20px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes lineLoad {
    from {
        width: 0;
    }

    to {
        width: 220px;
    }
}

@keyframes loaderFade {
    to {
        opacity: 0;
        visibility: hidden;
    }
}

/* HERO */

.hero {
    position: relative;
    width: 100%;
    height: 100vh;

    background-image: url('../images/hero.jpg');
    background-size: cover;
    background-position: center;

    display: flex;
    justify-content: center;
    align-items: center;
}

.overlay {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.55);
}

.hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
    padding: 20px;
}

.hero-content h1 {
    font-size: 72px;
    letter-spacing: 10px;
    margin-bottom: 20px;
}

.hero-content p {
    font-size: 22px;
    max-width: 800px;
    line-height: 1.6;
}

/* NAVBAR */

.navbar {
    position: fixed;
    top: 0;
    left: 0;

    width: 100%;

    padding: 28px 60px;

    display: flex;
    justify-content: space-between;
    align-items: center;

    z-index: 999;

    transition: 0.4s;
}

.navbar.scrolled {
    background: rgba(0,0,0,0.92);
    backdrop-filter: blur(10px);
}

.nav-logo {
    font-size: 22px;
    font-weight: bold;
    letter-spacing: 4px;
}

.nav-links {
    display: flex;
    gap: 40px;

    list-style: none;
}

.nav-links a {
    color: white;
    text-decoration: none;

    font-size: 14px;
    letter-spacing: 2px;

    transition: 0.3s;
}

.nav-links a:hover {
    opacity: 0.7;
}


/* GENEL BÖLÜMLER */

section {
    background: #050505;
}

.section-label {
    display: inline-block;
    font-size: 12px;
    letter-spacing: 4px;
    color: #bdbdbd;
    margin-bottom: 18px;
}

.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-header h2 {
    font-size: 42px;
    letter-spacing: 1px;
}


/* INTRO */

.intro-section {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: 80px;

    padding: 120px 80px;
    border-top: 1px solid rgba(255,255,255,0.12);
}

.intro-left h2 {
    font-size: 48px;
    line-height: 1.15;
    max-width: 600px;
}

.intro-right p {
    font-size: 18px;
    line-height: 1.9;
    color: #d1d1d1;
    margin-bottom: 24px;
}


/* SERVICES */

.services-section {
    padding: 120px 80px;
    background: #0a0a0a;
}

.service-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.service-card {
    min-height: 260px;
    padding: 36px;

    border: 1px solid rgba(255,255,255,0.14);
    background: linear-gradient(180deg, #111, #050505);

    transition: 0.35s;
}

.service-card:hover {
    transform: translateY(-8px);
    border-color: rgba(255,255,255,0.45);
}

.service-card h3 {
    font-size: 22px;
    margin-bottom: 22px;
}

.service-card p {
    font-size: 15px;
    line-height: 1.8;
    color: #cfcfcf;
}


/* PROJECTS */

.projects-preview {
    padding: 120px 80px;
}

.project-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
}

.project-card {
    background: #111;
    overflow: hidden;
    border: 1px solid rgba(255,255,255,0.12);
}

.project-image {
    height: 360px;
    background-size: cover;
    background-position: center;
    filter: grayscale(100%);
    transition: 0.4s;
}

.project-card:hover .project-image {
    filter: grayscale(0%);
    transform: scale(1.04);
}

.project-info {
    padding: 28px;
}

.project-info h3 {
    font-size: 22px;
    margin-bottom: 12px;
}

.project-info p {
    color: #cfcfcf;
    line-height: 1.7;
}


/* GEÇİCİ PROJE GÖRSELLERİ */

.project-1 {
    background-image: url('../images/project-1.jpg');
}

.project-2 {
    background-image: url('../images/project-2.jpg');
}

.project-3 {
    background-image: url('../images/project-3.jpg');
}


/* MOBİL UYUMLULUK */

@media (max-width: 900px) {

    .navbar {
        padding: 22px 24px;
    }

    .nav-links {
        display: none;
    }

    .hero-content h1 {
        font-size: 38px;
        letter-spacing: 5px;
    }

    .hero-content p {
        font-size: 17px;
    }

    .intro-section {
        grid-template-columns: 1fr;
        padding: 80px 24px;
        gap: 40px;
    }

    .intro-left h2 {
        font-size: 34px;
    }

    .services-section,
    .projects-preview {
        padding: 80px 24px;
    }

    .service-grid,
    .project-grid {
        grid-template-columns: 1fr;
    }

    .section-header h2 {
        font-size: 32px;
    }
}

/* REFERENCES */

.references-preview {
    padding: 120px 80px;
    background: #0a0a0a;
}

.timeline {
    max-width: 1000px;
    margin: 0 auto;
    border-left: 1px solid rgba(255,255,255,0.25);
}

.timeline-item {
    position: relative;
    padding: 0 0 48px 42px;
}

.timeline-item::before {
    content: "";
    position: absolute;
    left: -7px;
    top: 4px;

    width: 13px;
    height: 13px;

    background: white;
    border-radius: 50%;
}

.timeline-item span {
    display: block;
    font-size: 15px;
    letter-spacing: 3px;
    color: white;
    margin-bottom: 12px;
}

.timeline-item p {
    color: #cfcfcf;
    font-size: 17px;
    line-height: 1.8;
}


/* CTA */

.cta-section {
    min-height: 520px;
    padding: 120px 80px;

    display: flex;
    align-items: center;
    justify-content: center;

    background:
        linear-gradient(rgba(0,0,0,0.72), rgba(0,0,0,0.72)),
        url('../images/hero.jpg');

    background-size: cover;
    background-position: center;
    background-attachment: scroll;

    text-align: center;
}

.cta-content {
    max-width: 850px;
}

.cta-content h2 {
    font-size: 52px;
    line-height: 1.2;
    margin-bottom: 24px;
}

.cta-content p {
    font-size: 18px;
    color: #d0d0d0;
    line-height: 1.8;
    margin-bottom: 40px;
}

.cta-button {
    display: inline-block;

    padding: 16px 42px;

    border: 1px solid white;
    color: white;
    text-decoration: none;

    font-size: 13px;
    letter-spacing: 3px;

    transition: 0.3s;
}

.cta-button:hover {
    background: white;
    color: black;
}


/* FOOTER */

.footer {
    padding: 60px 80px;
    background: black;
    text-align: center;
    border-top: 1px solid rgba(255,255,255,0.12);
}

.footer-logo {
    font-size: 24px;
    letter-spacing: 5px;
    font-weight: bold;
    margin-bottom: 28px;
}

.footer-links {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 28px;
    margin-bottom: 28px;
}

.footer-links a {
    color: #cfcfcf;
    text-decoration: none;
    font-size: 13px;
    letter-spacing: 2px;
}

.footer-links a:hover {
    color: white;
}

.footer p {
    color: #888;
    font-size: 13px;
}


/* MOBİL EK */

@media (max-width: 900px) {

    .references-preview,
    .cta-section,
    .footer {
        padding: 80px 24px;
    }

    .cta-content h2 {
        font-size: 34px;
    }

    .timeline-item {
        padding-left: 32px;
    }

    .footer-links {
        flex-direction: column;
        gap: 16px;
    }
}

/* ALT SAYFALAR */

.page-navbar {
    background: rgba(0,0,0,0.95);
}

.page-hero {
    min-height: 65vh;
    padding: 160px 80px 100px;

    display: flex;
    align-items: center;
    justify-content: center;

    background:
        linear-gradient(rgba(0,0,0,0.72), rgba(0,0,0,0.72)),
        url('../images/hero.jpg');

    background-size: cover;
    background-position: center;

    text-align: center;
}

.page-hero-content h1 {
    font-size: 72px;
    letter-spacing: 4px;
    margin-bottom: 22px;
}

.page-hero-content p {
    font-size: 20px;
    color: #d0d0d0;
}

.content-section {
    padding: 120px 80px;
    background: #050505;
}

.content-container {
    max-width: 900px;
    margin: 0 auto;
}

.content-container h2 {
    font-size: 42px;
    margin-bottom: 30px;
}

.content-container p {
    font-size: 18px;
    line-height: 1.9;
    color: #d1d1d1;
    margin-bottom: 24px;
}

.contact-section {
    padding: 120px 80px;
    background: #050505;
}

.contact-box {
    max-width: 760px;
    margin: 0 auto;
    padding: 60px;

    border: 1px solid rgba(255,255,255,0.18);
    background: #0d0d0d;
}

.contact-box h2 {
    font-size: 36px;
    margin-bottom: 30px;
    letter-spacing: 3px;
}

.contact-box p {
    font-size: 18px;
    margin-bottom: 18px;
    color: #d1d1d1;
}

.contact-box .cta-button {
    margin-top: 30px;
}


@media (max-width: 900px) {

    .page-hero {
        padding: 140px 24px 80px;
        min-height: 55vh;
    }

    .page-hero-content h1 {
        font-size: 42px;
    }

    .content-section,
    .contact-section {
        padding: 80px 24px;
    }

    .contact-box {
        padding: 36px 24px;
    }
}
/* YILLARA GÖRE REFERANSLAR */

.years-section {
    padding: 120px 80px;
    background: #050505;
}

.years-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
    max-width: 1100px;
    margin: 0 auto;
}

.year-card {
    display: block;
    padding: 48px 36px;

    border: 1px solid rgba(255,255,255,0.16);
    background: linear-gradient(180deg, #111, #050505);

    color: white;
    text-decoration: none;

    transition: 0.35s;
}

.year-card:hover {
    transform: translateY(-8px);
    border-color: rgba(255,255,255,0.5);
    background: #111;
}

.year-card span {
    display: block;
    font-size: 42px;
    letter-spacing: 4px;
    margin-bottom: 18px;
}

.year-card p {
    color: #cfcfcf;
    line-height: 1.7;
}


/* YIL İÇİ PROJELER */

.year-projects-section {
    padding: 120px 80px;
    background: #050505;
}

.project-link {
    color: white;
    text-decoration: none;
    display: block;
}


/* PROJE DETAY SAYFASI */

.project-detail-section {
    padding: 120px 80px;
    background: #050505;
}

.project-detail-container {
    max-width: 1200px;
    margin: 0 auto;

    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 70px;
    align-items: center;
}

.project-detail-text h2 {
    font-size: 42px;
    line-height: 1.25;
    margin-bottom: 28px;
}

.project-detail-text p {
    font-size: 18px;
    color: #d1d1d1;
    line-height: 1.9;
    margin-bottom: 22px;
}

.project-detail-text ul {
    margin-top: 34px;
    list-style: none;
}

.project-detail-text li {
    padding: 14px 0;
    border-bottom: 1px solid rgba(255,255,255,0.12);
    color: #d1d1d1;
}

.project-detail-image img {
    width: 100%;
    display: block;
    filter: grayscale(100%);
}


@media (max-width: 900px) {

    .years-section,
    .year-projects-section,
    .project-detail-section {
        padding: 80px 24px;
    }

    .years-grid {
        grid-template-columns: 1fr;
    }

    .project-detail-container {
        grid-template-columns: 1fr;
    }

    .year-card span {
        font-size: 34px;
    }

    .project-detail-text h2 {
        font-size: 32px;
    }
}
/* STATS */

.stats-section {
    padding: 100px 80px;
    background: black;
    border-top: 1px solid rgba(255,255,255,0.08);
    border-bottom: 1px solid rgba(255,255,255,0.08);
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 40px;

    max-width: 1200px;
    margin: 0 auto;
}

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

.stat-item h2 {
    font-size: 64px;
    margin-bottom: 14px;
    letter-spacing: 2px;
}

.stat-item p {
    color: #bdbdbd;
    letter-spacing: 2px;
    font-size: 14px;
}


/* SCROLL REVEAL */

.reveal {
    opacity: 0;
    transform: translateY(80px);
    transition: all 1s ease;
}

.reveal.active {
    opacity: 1;
    transform: translateY(0);
}


/* MOBİL */

@media (max-width: 900px) {

    .stats-section {
        padding: 80px 24px;
    }

    .stats-grid {
        grid-template-columns: 1fr 1fr;
        gap: 40px 20px;
    }

    .stat-item h2 {
        font-size: 42px;
    }
}

/* GOOGLE MAPS */

.map-section {
    padding: 100px 80px;
    background: #050505;
}

.map-container {
    max-width: 1200px;
    margin: 0 auto;

    height: 460px;

    border: 1px solid rgba(255,255,255,0.16);
    overflow: hidden;
}

.map-container iframe {
    width: 100%;
    height: 100%;
    border: 0;

    filter: grayscale(100%) invert(92%) contrast(90%);
}

@media (max-width: 900px) {

    .map-section {
        padding: 80px 24px;
    }

    .map-container {
        height: 360px;
    }
}

/* PREMIUM GÜVEN DETAYLARI */

html {
    scroll-behavior: smooth;
}

body {
    cursor: default;
}

a,
button,
.project-card,
.service-card,
.year-card {
    -webkit-tap-highlight-color: transparent;
}

/* Premium link çizgisi */

.nav-links a {
    position: relative;
}

.nav-links a::after {
    content: "";
    position: absolute;
    left: 0;
    bottom: -8px;

    width: 0;
    height: 1px;

    background: white;
    transition: width 0.3s ease;
}

.nav-links a:hover::after {
    width: 100%;
}

/* Premium buton ışık efekti */

.cta-button {
    position: relative;
    overflow: hidden;
}

.cta-button::before {
    content: "";
    position: absolute;
    top: 0;
    left: -120%;

    width: 100%;
    height: 100%;

    background: linear-gradient(
        120deg,
        transparent,
        rgba(255,255,255,0.35),
        transparent
    );

    transition: 0.6s;
}

.cta-button:hover::before {
    left: 120%;
}

/* Premium kart derinliği */

.service-card,
.project-card,
.year-card,
.contact-box {
    box-shadow: 0 20px 60px rgba(0,0,0,0.25);
}

.service-card:hover,
.project-card:hover,
.year-card:hover {
    box-shadow: 0 35px 90px rgba(0,0,0,0.45);
}

/* Sayfa giriş hissi */

.page-hero-content,
.hero-content {
    animation: pageTextReveal 1.2s ease forwards;
}

@keyframes pageTextReveal {
    from {
        opacity: 0;
        transform: translateY(35px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* İnce premium ayırıcı */

.premium-divider {
    width: 1px;
    height: 80px;
    background: rgba(255,255,255,0.35);
    margin: 0 auto;
}

/* MOBİL HAMBURGER MENÜ */

.menu-toggle {
    display: none;
    width: 34px;
    height: 24px;

    background: transparent;
    border: none;
    cursor: pointer;

    position: relative;
    z-index: 1001;
}

.menu-toggle span {
    display: block;
    width: 100%;
    height: 2px;

    background: white;
    margin-bottom: 7px;

    transition: 0.35s;
}

.menu-toggle span:last-child {
    margin-bottom: 0;
}

.menu-toggle.active span:nth-child(1) {
    transform: translateY(9px) rotate(45deg);
}

.menu-toggle.active span:nth-child(2) {
    opacity: 0;
}

.menu-toggle.active span:nth-child(3) {
    transform: translateY(-9px) rotate(-45deg);
}

@media (max-width: 900px) {

    .menu-toggle {
        display: block;
    }

    .nav-links {
        position: fixed;
        top: 0;
        right: -100%;

        width: 100%;
        height: 100vh;

        background: rgba(0,0,0,0.97);
        backdrop-filter: blur(12px);

        display: flex;
        flex-direction: column;
        justify-content: center;
        align-items: center;

        gap: 34px;

        transition: right 0.45s ease;

        z-index: 1000;
    }

    .nav-links.active {
        right: 0;
    }

    .nav-links a {
        font-size: 18px;
        letter-spacing: 4px;
    }
}

/* FULLSCREEN PROJE GALERİSİ */

.project-detail-gallery {
    display: grid;
    grid-template-columns: 1fr;
    gap: 18px;
}

.project-detail-gallery img {
    width: 100%;
    height: 260px;
    object-fit: cover;

    filter: grayscale(100%);
    cursor: pointer;

    transition: 0.35s;
}

.project-detail-gallery img:hover {
    filter: grayscale(0%);
    transform: scale(1.02);
}

.lightbox {
    position: fixed;
    inset: 0;

    background: rgba(0,0,0,0.94);

    display: none;
    justify-content: center;
    align-items: center;

    z-index: 99999;
    padding: 40px;
}

.lightbox.active {
    display: flex;
}

.lightbox-img {
    max-width: 90%;
    max-height: 85vh;
    object-fit: contain;
}

.lightbox-close {
    position: absolute;
    top: 30px;
    right: 42px;

    color: white;
    font-size: 46px;
    cursor: pointer;
    font-weight: 200;
}

@media (max-width: 900px) {

    .lightbox {
        padding: 20px;
    }

    .lightbox-close {
        top: 20px;
        right: 24px;
        font-size: 38px;
    }
}

/* SOSYAL MEDYA */

.social-links,
.contact-social-links {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 18px;
    margin-bottom: 30px;
}

.contact-social-links {
    justify-content: flex-start;
    margin-top: 34px;
    margin-bottom: 0;
}

.social-links a,
.contact-social-links a {
    color: white;
    text-decoration: none;

    padding: 12px 20px;

    border: 1px solid rgba(255,255,255,0.22);
    background: transparent;

    font-size: 12px;
    letter-spacing: 2px;
    text-transform: uppercase;

    transition: 0.3s;
}

.social-links a:hover,
.contact-social-links a:hover {
    background: white;
    color: black;
    border-color: white;
    transform: translateY(-4px);
}

@media (max-width: 900px) {

    .contact-social-links {
        justify-content: center;
    }

    .social-links a,
    .contact-social-links a {
        width: 100%;
        text-align: center;
    }
}