/* Reset & Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-black: #1a1a1a;
    --secondary-black: #2d2d2d;
    --dark-gray: #3a3a3a;
    --medium-gray: #6b6b6b;
    --light-gray: #e0e0e0;
    --white: #ffffff;
    --accent-gray: #4a4a4a;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: var(--primary-black);
    background-color: var(--white);
    overflow-x: hidden;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Loader */
.loader {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: var(--white);
    z-index: 2002;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: opacity 0.6s ease, visibility 0.6s ease;
}

.loader.hidden {
    opacity: 0;
    visibility: hidden;
}

.loader-content {
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 25px;
}

.loader-logo {
    height: 110px;
    width: auto;
    object-fit: contain;
}

.loader-logo-text {
    font-size: 28px;
    font-weight: 700;
    letter-spacing: 2px;
    color: var(--primary-black);
    text-transform: uppercase;
}

.loader-dots {
    display: flex;
    gap: 10px;
}

.loader-dots span {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background-color: var(--primary-black);
    animation: loaderDots 1.2s infinite ease-in-out;
}

.loader-dots span:nth-child(2) {
    animation-delay: 0.2s;
}

.loader-dots span:nth-child(3) {
    animation-delay: 0.4s;
}

@keyframes loaderDots {
    0%, 80%, 100% {
        transform: scale(0);
        opacity: 0.4;
    }
    40% {
        transform: scale(1);
        opacity: 1;
    }
}

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background-color: var(--white);
    backdrop-filter: none;
    z-index: 1000;
    border-bottom: 1px solid rgba(0, 0, 0, 0.08);
    transition: transform 0.3s ease;
}

.navbar.hidden {
    transform: translateY(-100%);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 40px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 70px;
}

.logo-container {
    display: flex;
    align-items: center;
}

.logo {
    height: 54px;
    width: auto;
    object-fit: contain;
    display: block;
}

.logo-text {
    color: var(--white);
    font-size: 17px;
    font-weight: 600;
    letter-spacing: 0.5px;
    text-transform: uppercase;
}

.navbar .logo-text {
    color: var(--primary-black);
}

.sidebar .logo-text {
    color: var(--primary-black);
}

.footer .logo-text {
    color: var(--primary-black);
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 40px;
    align-items: center;
}

/* Navbar load animation - left logo, right menu */
.logo-container,
.nav-menu {
    opacity: 0;
}

body.navbar-enter .logo-container {
    animation: navbarSlideLeft 0.6s ease forwards;
}

body.navbar-enter .nav-menu {
    animation: navbarSlideRight 0.6s ease forwards;
    animation-delay: 0.1s;
}

@keyframes navbarSlideLeft {
    from {
        transform: translateX(-80px);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

@keyframes navbarSlideRight {
    from {
        transform: translateX(80px);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

.nav-link {
    color: var(--primary-black);
    text-decoration: none;
    font-weight: 600;
    font-size: 14px;
    letter-spacing: 1px;
    text-transform: uppercase;
    transition: color 0.3s ease;
    position: relative;
    padding: 5px 0;
    display: flex;
    align-items: center;
    gap: 8px;
}

.nav-icon {
    width: 18px;
    height: 18px;
    object-fit: contain;
    filter: none;
    transition: all 0.3s ease;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 1px;
    background-color: var(--primary-black);
    transition: width 0.3s ease;
}

.nav-link:hover::after,
.nav-link.active::after {
    width: 100%;
}

.nav-link:hover,
.nav-link.active {
    color: var(--primary-black);
}

/* Sidebar Toggle Button */
.sidebar-toggle {
    position: fixed;
    right: 20px;
    top: 20px;
    transform: none;
    z-index: 1100;
    width: 44px;
    height: 44px;
    background-color: var(--white);
    border: 1px solid var(--primary-black);
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
}

.sidebar-toggle.visible {
    opacity: 1;
    visibility: visible;
}

.sidebar-toggle:hover {
    background-color: var(--white);
    transform: scale(1.08);
}

.sidebar-toggle-icon {
    width: 20px;
    height: 20px;
    object-fit: contain;
    display: block;
}

/* Sidebar toggle spin animation */
.sidebar-toggle-icon.spin-once {
    animation: sidebarIconSpin 0.6s ease;
}

@keyframes sidebarIconSpin {
    from {
        transform: rotate(0deg);
    }
    to {
        transform: rotate(360deg);
    }
}

/* Sidebar */
.sidebar-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.7);
    z-index: 2000;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
}

.sidebar-overlay.active {
    opacity: 1;
    visibility: visible;
}

.sidebar {
    position: fixed;
    top: 0;
    left: 0;
    width: 300px;
    height: 100%;
    background-color: var(--white);
    z-index: 2001;
    transform: translateX(-100%);
    transition: transform 0.3s ease;
    box-shadow: 2px 0 20px rgba(0, 0, 0, 0.5);
    overflow-y: auto;
}

.sidebar.active {
    transform: translateX(0);
}

.sidebar-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 30px 25px;
    border-bottom: 1px solid rgba(0, 0, 0, 0.08);
}

.sidebar-logo .logo {
    height: 75px;
}

.sidebar-close {
    background: none;
    border: none;
    color: var(--primary-black);
    font-size: 32px;
    cursor: pointer;
    width: 35px;
    height: 35px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    transition: all 0.3s ease;
    line-height: 1;
    padding: 0;
}

.sidebar-close:hover {
    background-color: rgba(0, 0, 0, 0.05);
    transform: rotate(90deg);
}

.sidebar-menu {
    list-style: none;
    padding: 20px 0;
}

.sidebar-menu li {
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
}

.sidebar-link {
    display: flex;
    align-items: center;
    gap: 12px;
    color: var(--primary-black);
    text-decoration: none;
    padding: 20px 25px;
    font-size: 14px;
    letter-spacing: 1px;
    text-transform: uppercase;
    transition: all 0.3s ease;
    position: relative;
}

.sidebar-icon {
    width: 20px;
    height: 20px;
    object-fit: contain;
    filter: none;
    transition: all 0.3s ease;
    flex-shrink: 0;
}

.sidebar-link::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 3px;
    background-color: var(--primary-black);
    transform: scaleY(0);
    transition: transform 0.3s ease;
}

.sidebar-link:hover,
.sidebar-link.active {
    background-color: rgba(0, 0, 0, 0.05);
    padding-left: 30px;
}

.sidebar-link:hover::before,
.sidebar-link.active::before {
    transform: scaleY(1);
}

/* Hero Section */
.hero {
    position: relative;
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--primary-black) 0%, var(--dark-gray) 100%);
    background-image: url('resim1.jpeg');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    color: var(--white);
    text-align: center;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg width="100" height="100" xmlns="http://www.w3.org/2000/svg"><defs><pattern id="grid" width="100" height="100" patternUnits="userSpaceOnUse"><path d="M 100 0 L 0 0 0 100" fill="none" stroke="rgba(255,255,255,0.05)" stroke-width="1"/></pattern></defs><rect width="100" height="100" fill="url(%23grid)"/></svg>');
    opacity: 0.3;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(26, 26, 26, 0.6);
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 800px;
    padding: 0 20px;
}

.hero-title {
    font-size: 4.5rem;
    font-weight: 700;
    margin-bottom: 20px;
    letter-spacing: 2px;
    text-transform: uppercase;
}

.hero-subtitle {
    font-size: 1.8rem;
    margin-bottom: 15px;
    color: var(--light-gray);
    font-weight: 300;
}

.hero-description {
    font-size: 1.2rem;
    margin-bottom: 40px;
    color: var(--white);
}

.hero-buttons {
    display: flex;
    gap: 20px;
    justify-content: center;
    flex-wrap: wrap;
}

/* Hero text & buttons entrance animation (from bottom to top on load) */
.hero-title,
.hero-subtitle,
.hero-description,
.hero-buttons {
    opacity: 0;
    transform: translateY(40px);
}

body.navbar-enter .hero-title {
    animation: heroFadeUp 0.6s ease forwards;
}

body.navbar-enter .hero-subtitle {
    animation: heroFadeUp 0.6s ease forwards;
    animation-delay: 0.1s;
}

body.navbar-enter .hero-description {
    animation: heroFadeUp 0.6s ease forwards;
    animation-delay: 0.2s;
}

body.navbar-enter .hero-buttons {
    animation: heroFadeUp 0.6s ease forwards;
    animation-delay: 0.3s;
}

@keyframes heroFadeUp {
    from {
        opacity: 0;
        transform: translateY(40px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.btn {
    padding: 15px 40px;
    text-decoration: none;
    border-radius: 5px;
    font-weight: 600;
    font-size: 16px;
    transition: all 0.3s ease;
    display: inline-block;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.btn-primary {
    background-color: var(--white);
    color: var(--primary-black);
}

.btn-primary:hover {
    background-color: var(--light-gray);
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(255, 255, 255, 0.3);
}

.btn-secondary {
    background-color: transparent;
    color: var(--white);
    border: 2px solid var(--white);
}

.btn-secondary:hover {
    background-color: var(--white);
    color: var(--primary-black);
    transform: translateY(-2px);
}

.scroll-indicator {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 2;
}

.scroll-indicator span {
    display: block;
    width: 30px;
    height: 50px;
    border: 2px solid var(--white);
    border-radius: 25px;
    position: relative;
}

.scroll-indicator span::before {
    content: '';
    position: absolute;
    top: 10px;
    left: 50%;
    transform: translateX(-50%);
    width: 6px;
    height: 6px;
    background-color: var(--white);
    border-radius: 50%;
    animation: scroll 2s infinite;
}

@keyframes scroll {
    0% {
        opacity: 1;
        transform: translateX(-50%) translateY(0);
    }
    100% {
        opacity: 0;
        transform: translateX(-50%) translateY(20px);
    }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Section Styles */
section {
    padding: 100px 0;
}

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

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--primary-black);
    margin-bottom: 15px;
    text-transform: uppercase;
    letter-spacing: 2px;
}

.title-underline {
    width: 80px;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-black), var(--medium-gray));
    margin: 0 auto;
}

/* About Section */
.about {
    background-color: var(--white);
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.about-text h3 {
    font-size: 2rem;
    margin-bottom: 20px;
    color: var(--primary-black);
}

.about-text p {
    font-size: 1.1rem;
    line-height: 1.8;
    color: var(--medium-gray);
    margin-bottom: 20px;
}

.about-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.stat-item {
    text-align: center;
    padding: 30px;
    background-color: var(--primary-black);
    color: var(--white);
    border-radius: 10px;
    transition: transform 0.3s ease;
}

.stat-item:hover {
    transform: translateY(-5px);
}

.stat-number {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 10px;
    color: var(--white);
}

.stat-label {
    font-size: 1rem;
    color: var(--light-gray);
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* Services Section */
.services {
    background-color: var(--light-gray);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.service-card {
    background-color: var(--white);
    padding: 40px;
    border-radius: 10px;
    text-align: center;
    transition: all 0.3s ease;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

.service-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

.service-icon {
    font-size: 3.5rem;
    margin-bottom: 20px;
}

.service-card h3 {
    font-size: 1.5rem;
    margin-bottom: 15px;
    color: var(--primary-black);
}

.service-card p {
    color: var(--medium-gray);
    line-height: 1.6;
}

/* Projects Section */
.projects {
    background-color: var(--white);
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
}

.project-card {
    background-color: var(--primary-black);
    border-radius: 10px;
    overflow: hidden;
    transition: transform 0.3s ease;
}

.project-card:hover {
    transform: scale(1.02);
}

.project-image {
    height: 300px;
    background: linear-gradient(135deg, var(--dark-gray) 0%, var(--medium-gray) 100%);
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
}

.project-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(0, 0, 0, 0.7);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.project-card:hover .project-overlay {
    opacity: 1;
}

.project-link {
    color: var(--white);
    text-decoration: none;
    padding: 12px 30px;
    border: 2px solid var(--white);
    border-radius: 5px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    transition: all 0.3s ease;
}

.project-link:hover {
    background-color: var(--white);
    color: var(--primary-black);
}

.project-info {
    padding: 25px;
    color: var(--white);
}

.project-info h3 {
    font-size: 1.5rem;
    margin-bottom: 10px;
}

.project-info p {
    color: var(--light-gray);
}

/* Contact Section */
.contact {
    background-color: var(--primary-black);
    color: var(--white);
}

.contact .section-title {
    color: var(--white);
}

.contact .title-underline {
    background: linear-gradient(90deg, var(--white), var(--light-gray));
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
}

.contact-info h3 {
    font-size: 2rem;
    margin-bottom: 20px;
}

.contact-info p {
    font-size: 1.1rem;
    line-height: 1.8;
    color: var(--light-gray);
    margin-bottom: 30px;
}

.contact-details {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.contact-item {
    display: flex;
    flex-direction: column;
    gap: 5px;
}

.contact-item strong {
    color: var(--white);
    font-size: 1.1rem;
}

.contact-item span {
    color: var(--light-gray);
    font-size: 1rem;
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 15px;
    border: 2px solid var(--dark-gray);
    background-color: var(--secondary-black);
    color: var(--white);
    border-radius: 5px;
    font-size: 16px;
    font-family: inherit;
    transition: border-color 0.3s ease;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--white);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: var(--medium-gray);
}

.contact-form .btn-primary {
    align-self: flex-start;
}

/* Footer */
.footer {
    background-color: var(--white);
    color: var(--primary-black);
    padding: 40px 0;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.footer-text p {
    color: var(--medium-gray);
}

.footer-designed-by {
    display: block;
    margin-top: 4px;
    font-size: 11px;
    color: var(--medium-gray);
    font-weight: 400;
    text-align: right;
}

/* Responsive Design */
@media (max-width: 968px) {
    .nav-container {
        padding: 0 12px;
    }

    .logo {
        height: 44px;
    }

    .logo-text {
        font-size: 14px;
    }

    .nav-menu {
        display: none;
    }

    .sidebar-toggle {
        display: flex;
        opacity: 1;
        visibility: visible;
        right: 15px;
        top: 15px;
        transform: none;
        z-index: 1500;
    }

    .hero-title {
        font-size: 3rem;
    }

    .hero-subtitle {
        font-size: 1.4rem;
    }

    .about-content {
        grid-template-columns: 1fr;
    }

    .about-stats {
        grid-template-columns: 1fr;
    }

    .services-grid {
        grid-template-columns: repeat(2, 1fr);
    }

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

    .contact-content {
        grid-template-columns: 1fr;
    }

    .footer-content {
        flex-direction: column;
        gap: 20px;
        text-align: center;
    }
}

@media (max-width: 640px) {
    .sidebar {
        width: 280px;
    }

    .sidebar-toggle {
        width: 45px;
        height: 45px;
        right: 12px;
        left: auto;
        top: 12px;
        z-index: 1500;
    }

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

    .hero-subtitle {
        font-size: 1.2rem;
    }

    .hero-description {
        font-size: 1rem;
    }

    .section-title {
        font-size: 2rem;
    }

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

    .hero-buttons {
        flex-direction: column;
        width: 100%;
    }

    .btn {
        width: 100%;
        text-align: center;
    }
}