/* Eser IT — Shared Styles */

:root {
    --dark: #0F1419;
    --gray-1: #1F2937;
    --gray-2: #374151;
    --gray-3: #6B7280;
    --light: #F3F4F6;
    --white: #FFFFFF;
    --accent: #3B82F6;
    --accent-2: #8B5CF6;
    --accent-3: #EC4899;
}

@media (prefers-color-scheme: dark) {
    :root:not([data-theme="light"]) {
        --dark: #F9FAFB;
        --gray-1: #E5E7EB;
        --gray-2: #D1D5DB;
        --gray-3: #9CA3AF;
        --light: #1F2937;
        --white: #111827;
        --accent: #60A5FA;
    }
}

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

html, body {
    height: 100%;
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    background: var(--white);
    color: var(--gray-1);
    line-height: 1.6;
    overflow-x: hidden;
}

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

@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-50px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(50px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes slideInDown {
    from {
        transform: translateY(-100%);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

@keyframes float {
    0%, 100% {
        transform: translateY(0px);
    }
    50% {
        transform: translateY(-20px);
    }
}

a {
    color: var(--accent);
    text-decoration: none;
    transition: color 0.3s;
}

a:hover {
    color: var(--accent-2);
}

/* Header */
header {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(15, 20, 25, 0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    padding: 1.5rem 0;
    border-bottom: 1px solid rgba(59, 130, 246, 0.1);
    animation: slideInDown 0.6s ease-out;
}

.header-content {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 1.25rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--accent), var(--accent-2));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-decoration: none;
}

.nav-menu {
    display: flex;
    gap: 2.5rem;
    align-items: center;
}

.nav-menu a {
    font-size: 0.95rem;
    color: var(--gray-3);
    font-weight: 500;
    transition: all 0.3s;
}

.nav-menu a:hover {
    color: var(--accent);
}

.nav-cta {
    background: linear-gradient(135deg, var(--accent), var(--accent-2)) !important;
    color: white !important;
    padding: 0.75rem 1.75rem !important;
    border-radius: 8px;
    font-weight: 600;
    box-shadow: 0 4px 15px rgba(59, 130, 246, 0.3);
    transition: all 0.3s;
}

.nav-cta:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(59, 130, 246, 0.5);
}

/* Hero */
.hero {
    margin-top: 60px;
    min-height: 90vh;
    background: linear-gradient(135deg, rgba(15, 20, 25, 0.95) 0%, rgba(31, 41, 55, 0.9) 100%);
    position: relative;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 4rem 2rem;
}

.hero::before {
    content: '';
    position: absolute;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(59, 130, 246, 0.15) 0%, transparent 70%);
    top: -200px;
    right: -200px;
    animation: float 6s ease-in-out infinite;
}

.hero::after {
    content: '';
    position: absolute;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(139, 92, 246, 0.15) 0%, transparent 70%);
    bottom: -200px;
    left: -200px;
    animation: float 8s ease-in-out infinite;
}

.hero-content {
    position: relative;
    z-index: 1;
    max-width: 800px;
    animation: fadeInUp 0.8s ease-out;
}

.hero h1 {
    font-family: 'Poppins', sans-serif;
    font-size: clamp(2.5rem, 8vw, 4.5rem);
    font-weight: 700;
    line-height: 1.1;
    margin-bottom: 1.5rem;
    background: linear-gradient(135deg, var(--accent), var(--accent-2), var(--accent-3));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    letter-spacing: -0.02em;
}

.hero p {
    font-size: 1.25rem;
    color: var(--gray-3);
    margin-bottom: 2.5rem;
    line-height: 1.8;
    font-weight: 300;
}

.hero-cta {
    display: flex;
    gap: 1.5rem;
    justify-content: center;
    flex-wrap: wrap;
    animation: fadeInUp 1s ease-out;
}

.btn {
    padding: 1rem 2.25rem;
    border-radius: 10px;
    font-weight: 600;
    text-decoration: none;
    cursor: pointer;
    border: none;
    font-size: 1rem;
    transition: all 0.3s;
    display: inline-block;
    position: relative;
    overflow: hidden;
}

.btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
    transition: left 0.5s;
}

.btn:hover::before {
    left: 100%;
}

.btn-primary {
    background: linear-gradient(135deg, var(--accent), var(--accent-2));
    color: white;
    box-shadow: 0 8px 25px rgba(59, 130, 246, 0.4);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 35px rgba(59, 130, 246, 0.6);
}

.btn-secondary {
    background: rgba(59, 130, 246, 0.1);
    color: var(--accent);
    border: 2px solid var(--accent);
}

.btn-secondary:hover {
    background: var(--accent);
    color: white;
    transform: translateY(-3px);
}

main {
    max-width: 1280px;
    margin: 0 auto;
}

/* Services Section */
.services-section {
    padding: 6rem 2rem;
}

.section-header {
    text-align: center;
    margin-bottom: 5rem;
    animation: fadeInUp 0.8s ease-out;
}

.section-header h2 {
    font-family: 'Poppins', sans-serif;
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 1rem;
    background: linear-gradient(135deg, var(--accent), var(--accent-2));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section-header p {
    font-size: 1.125rem;
    color: var(--gray-3);
    max-width: 500px;
    margin: 0 auto;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2.5rem;
}

.service, .portfolio-card, .faq-item {
    padding: 2.5rem;
    background: linear-gradient(135deg, rgba(59, 130, 246, 0.05), rgba(139, 92, 246, 0.05));
    border: 1px solid rgba(59, 130, 246, 0.2);
    border-radius: 16px;
    transition: all 0.4s cubic-bezier(0.23, 1, 0.320, 1);
    cursor: pointer;
    animation: fadeInUp 0.8s ease-out;
    animation-fill-mode: both;
}

.service:nth-child(1) { animation-delay: 0.1s; }
.service:nth-child(2) { animation-delay: 0.2s; }
.service:nth-child(3) { animation-delay: 0.3s; }
.service:nth-child(4) { animation-delay: 0.4s; }
.service:nth-child(5) { animation-delay: 0.5s; }
.service:nth-child(6) { animation-delay: 0.6s; }

.portfolio-card:nth-child(1) { animation-delay: 0.1s; }
.portfolio-card:nth-child(2) { animation-delay: 0.2s; }
.portfolio-card:nth-child(3) { animation-delay: 0.3s; }
.portfolio-card:nth-child(4) { animation-delay: 0.4s; }

.service:hover, .portfolio-card:hover {
    transform: translateY(-8px);
    border-color: var(--accent);
    box-shadow: 0 20px 50px rgba(59, 130, 246, 0.15);
    background: linear-gradient(135deg, rgba(59, 130, 246, 0.1), rgba(139, 92, 246, 0.1));
}

.service-icon, .portfolio-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--accent), var(--accent-2));
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    margin: 0 auto 1.5rem;
    box-shadow: 0 4px 15px rgba(59, 130, 246, 0.3);
    transition: all 0.3s;
}

.service:hover .service-icon, .portfolio-card:hover .portfolio-icon {
    transform: scale(1.1) rotate(5deg);
}

.service h3, .portfolio-card h3 {
    font-family: 'Poppins', sans-serif;
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 0.75rem;
    color: var(--gray-1);
}

.service p, .portfolio-card p {
    font-size: 0.95rem;
    color: var(--gray-3);
    line-height: 1.7;
    margin-bottom: 1.5rem;
}

.service-link, .portfolio-link {
    display: inline-block;
    color: var(--accent);
    font-weight: 600;
    font-size: 0.9rem;
    transition: all 0.3s;
}

.service-link:hover, .portfolio-link:hover {
    transform: translateX(5px);
}

/* Stats */
.stats-section {
    padding: 4rem 2rem;
    background: linear-gradient(135deg, rgba(59, 130, 246, 0.1), rgba(139, 92, 246, 0.1));
    border-radius: 16px;
    margin: 2rem 0;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
}

.stat {
    text-align: center;
    animation: fadeInUp 1s ease-out;
}

.stat-number {
    font-family: 'Poppins', sans-serif;
    font-size: 2.5rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--accent), var(--accent-2));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 0.5rem;
}

.stat-label {
    font-size: 0.9rem;
    color: var(--gray-3);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    font-weight: 600;
}

/* CTA Section */
.cta-section {
    padding: 6rem 2rem;
    text-align: center;
    animation: fadeInUp 1s ease-out;
}

.cta-section h2 {
    font-family: 'Poppins', sans-serif;
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: var(--gray-1);
}

.cta-section p {
    font-size: 1.125rem;
    color: var(--gray-3);
    margin-bottom: 2.5rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

/* Contact Form */
.contact-form {
    max-width: 600px;
    margin: 0 auto;
    padding: 3rem;
    background: linear-gradient(135deg, rgba(59, 130, 246, 0.05), rgba(139, 92, 246, 0.05));
    border: 1px solid rgba(59, 130, 246, 0.2);
    border-radius: 16px;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: var(--gray-1);
}

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid rgba(59, 130, 246, 0.2);
    border-radius: 8px;
    background: var(--white);
    color: var(--gray-1);
    font-family: inherit;
    font-size: 1rem;
    transition: all 0.3s;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

/* FAQ */
.faq-section {
    padding: 6rem 2rem;
}

.faq-grid {
    display: grid;
    gap: 1.5rem;
}

.faq-item h3 {
    font-family: 'Poppins', sans-serif;
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 0.75rem;
    color: var(--gray-1);
}

.faq-item p {
    color: var(--gray-3);
    line-height: 1.7;
}

/* Footer */
footer {
    background: linear-gradient(135deg, rgba(15, 20, 25, 0.95), rgba(31, 41, 55, 0.95));
    padding: 3rem 2rem;
    text-align: center;
    color: var(--gray-3);
    font-size: 0.95rem;
    border-top: 1px solid rgba(59, 130, 246, 0.1);
}

footer p {
    margin-bottom: 0.5rem;
}

footer strong {
    background: linear-gradient(135deg, var(--accent), var(--accent-2));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-weight: 700;
}

footer a {
    color: var(--accent);
}

/* Responsive */
@media (max-width: 768px) {
    .header-content {
        padding: 0 1rem;
    }

    .nav-menu {
        gap: 1rem;
    }

    .nav-menu a {
        font-size: 0.85rem;
    }

    .section-header h2 {
        font-size: 2rem;
    }

    .hero h1 {
        font-size: 2rem;
    }

    .cta-section h2 {
        font-size: 1.75rem;
    }

    .contact-form {
        padding: 2rem;
    }

    .services-grid {
        gap: 1.5rem;
    }
}

@media (max-width: 600px) {
    body {
        font-size: 0.95rem;
    }

    main, .services-section, .cta-section {
        padding: 0 1rem;
    }

    .logo {
        font-size: 1rem;
    }

    .hero {
        min-height: 70vh;
        padding: 2rem 1rem;
        margin-top: 50px;
    }

    .hero h1 {
        font-size: 1.5rem;
    }

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

    .hero-cta {
        flex-direction: column;
        gap: 1rem;
    }

    .btn {
        width: 100%;
        padding: 0.75rem 1.5rem;
    }

    .section-header h2 {
        font-size: 1.5rem;
    }

    .service, .portfolio-card, .faq-item {
        padding: 1.5rem;
    }

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

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

    .contact-form {
        padding: 1.5rem;
    }

    .cta-section {
        padding: 3rem 1rem;
    }
}