/* modern.css - Premium Design System for Site Yonetim Sistemi */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&display=swap');

:root {
    --bg-primary: #0a0f1c; /* Deep dark blue for premium look */
    --bg-secondary: #131b2f;
    --text-primary: #ffffff;
    --text-secondary: #94a3b8;
    --accent-primary: #3b82f6; /* Vivid blue */
    --accent-secondary: #8b5cf6; /* Vivid purple */
    --success: #10b981;
    --border-color: rgba(255, 255, 255, 0.1);
    --glass-bg: rgba(19, 27, 47, 0.6);
    --glass-border: rgba(255, 255, 255, 0.08);
}

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

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

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

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

/* Glassmorphism Utilities */
.glass {
    background: var(--glass-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--glass-border);
    border-radius: 16px;
}

/* Navbar */
.navbar-modern {
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 1000;
    padding: 20px 0;
    transition: all 0.4s ease;
}

.navbar-modern.scrolled {
    padding: 15px 0;
    background: rgba(10, 15, 28, 0.9);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--glass-border);
}

.navbar-modern .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.navbar-modern .logo img {
    height: 40px;
}

.nav-links {
    display: flex;
    gap: 30px;
    list-style: none;
    align-items: center;
}

.nav-links a {
    font-size: 15px;
    font-weight: 500;
    color: var(--text-secondary);
    position: relative;
}

.nav-links a:hover, .nav-links a.active {
    color: var(--text-primary);
}

.nav-links a::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    bottom: -5px;
    left: 0;
    background: linear-gradient(90deg, var(--accent-primary), var(--accent-secondary));
    transition: width 0.3s ease;
}

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

.btn-primary {
    background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
    color: #fff !important;
    padding: 10px 24px;
    border-radius: 8px;
    font-weight: 600;
    box-shadow: 0 4px 15px rgba(59, 130, 246, 0.4);
    border: none;
    cursor: pointer;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(59, 130, 246, 0.6);
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    padding-top: 80px;
    overflow: hidden;
}

.hero-bg-glow {
    position: absolute;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(59,130,246,0.15) 0%, rgba(10,15,28,0) 70%);
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    z-index: -1;
}

.hero .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    gap: 50px;
}

.hero-content {
    flex: 1;
}

.hero-content h1 {
    font-size: 3.5rem;
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: 20px;
    background: linear-gradient(to right, #fff, #94a3b8);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero-content p {
    font-size: 1.1rem;
    color: var(--text-secondary);
    margin-bottom: 40px;
    max-width: 500px;
}

.hero-buttons {
    display: flex;
    gap: 15px;
    flex-wrap: wrap;
    margin-top: 30px;
}

.hero-image-wrapper {
    flex: 1;
    position: relative;
}

.dashboard-mockup {
    width: 100%;
    border-radius: 12px;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
    border: 1px solid var(--glass-border);
    animation: float 6s ease-in-out infinite;
}

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

/* Features Section */
.section-padding {
    padding: 100px 0;
}

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

.section-header h2 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 15px;
}

.section-header p {
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.feature-card {
    padding: 40px 30px;
    transition: transform 0.4s ease, background 0.4s ease;
}

.feature-card:hover {
    transform: translateY(-10px);
    background: rgba(255, 255, 255, 0.03);
}

.feature-icon {
    width: 60px;
    height: 60px;
    background: rgba(59, 130, 246, 0.1);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 25px;
    color: var(--accent-primary);
    font-size: 24px;
}

.feature-card h3 {
    font-size: 1.25rem;
    margin-bottom: 15px;
}

.feature-card p {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

/* Portfolio / References Section */
.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 30px;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.portfolio-card {
    overflow: hidden;
    position: relative;
    border-radius: 16px;
    cursor: pointer;
}

.portfolio-card img {
    width: 100%;
    height: 250px;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.portfolio-card:hover img {
    transform: scale(1.1);
}

.portfolio-overlay {
    position: absolute;
    bottom: -100%;
    left: 0;
    width: 100%;
    padding: 20px;
    background: linear-gradient(to top, rgba(10,15,28,0.9), transparent);
    transition: bottom 0.4s ease;
}

.portfolio-card:hover .portfolio-overlay {
    bottom: 0;
}

.portfolio-overlay h4 {
    margin-bottom: 5px;
    font-size: 1.2rem;
}

.portfolio-overlay p {
    color: #cbd5e1;
    font-size: 0.9rem;
}

/* Footer */
footer {
    background: var(--bg-secondary);
    padding: 60px 0 30px;
    border-top: 1px solid var(--glass-border);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    margin-bottom: 40px;
}

.footer-col h4 {
    font-size: 1.1rem;
    margin-bottom: 20px;
    color: #fff;
}

.footer-col p, .footer-col ul li a {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

.footer-col ul {
    list-style: none;
}

.footer-col ul li {
    margin-bottom: 10px;
}

.footer-col ul li a:hover {
    color: var(--accent-primary);
}

.footer-bottom {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid var(--glass-border);
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* Mobile Navigation Button */
.mobile-nav-toggle {
    display: none;
    background: transparent;
    border: none;
    color: var(--text-primary);
    font-size: 28px;
    cursor: pointer;
    z-index: 1100;
    transition: all 0.3s ease;
    line-height: 1;
    padding: 5px;
}

/* =========================================
   RESPONSIVE — 992px (Tablet & Mobile Nav)
   ========================================= */
@media (max-width: 992px) {

    /* Hero */
    .hero .container {
        flex-direction: column;
        text-align: center;
        padding-top: 120px;
        padding-bottom: 60px;
    }

    .hero-content {
        width: 100%;
    }

    .hero-content h1 {
        font-size: 2.2rem;
    }

    .hero-content p {
        max-width: 100%;
    }

    .hero-image-wrapper {
        width: 100%;
        max-width: 500px;
        margin: 0 auto;
    }

    /* Mobile nav toggle visible */
    .mobile-nav-toggle {
        display: block;
    }

    /* Mobile slide-in menu */
    .nav-links {
        position: fixed;
        right: -100%;
        top: 0;
        width: 280px;
        height: 100vh;
        background: rgba(10, 15, 28, 0.98);
        backdrop-filter: blur(25px);
        -webkit-backdrop-filter: blur(25px);
        border-left: 1px solid var(--glass-border);
        flex-direction: column;
        justify-content: flex-start;
        align-items: flex-start;
        padding: 90px 30px 40px;
        gap: 5px;
        transition: right 0.4s cubic-bezier(0.16, 1, 0.3, 1);
        z-index: 1050;
        box-shadow: -10px 0 30px rgba(0, 0, 0, 0.5);
        overflow-y: auto;
    }

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

    .nav-links li {
        width: 100%;
    }

    .nav-links a {
        font-size: 16px;
        width: 100%;
        display: block;
        padding: 12px 0;
        border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    }

    .nav-links a::after {
        display: none;
    }

    .nav-links .btn-primary {
        width: 100%;
        text-align: center;
        margin-top: 20px;
        display: block;
        box-shadow: none;
    }

    /* Pricing section */
    .pricing-grid {
        grid-template-columns: 1fr !important;
        gap: 30px !important;
        padding: 25px 20px !important;
    }

    /* Pricing features liste grid — 992px'de 2 kolon kalabilir, yeterli alan var */
    .pricing-features-grid {
        grid-template-columns: 1fr 1fr;
    }

    /* Portal section flex */
    .portal-section-inner {
        flex-direction: column !important;
    }
}

/* =========================================
   RESPONSIVE — 768px (Mobile)
   ========================================= */
@media (max-width: 768px) {

    /* Genel section padding azalt */
    .section-padding {
        padding: 60px 0;
    }

    .section-header h2 {
        font-size: 1.8rem;
    }

    /* Hero başlık */
    .hero-content h1 {
        font-size: 1.8rem;
    }

    /* Hero butonlar alt alta */
    .hero-buttons {
        flex-direction: column !important;
        align-items: center !important;
        gap: 12px !important;
    }

    .hero-buttons a {
        width: 100%;
        text-align: center;
    }

    /* İletişim formu grid */
    .contact-form-grid {
        grid-template-columns: 1fr !important;
        gap: 12px !important;
    }

    /* Portal card perspective kaldır */
    .portal-card-preview {
        transform: none !important;
        box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3) !important;
        padding: 20px !important;
    }

    /* Portal stats grid */
    .portal-stats-grid {
        grid-template-columns: 1fr !important;
    }

    /* Portfolio grid tek kolon */
    .portfolio-grid {
        grid-template-columns: 1fr !important;
    }

    /* Features grid tek kolon */
    .features-grid {
        grid-template-columns: 1fr !important;
    }

    /* Footer */
    .footer-content {
        grid-template-columns: 1fr !important;
        gap: 30px !important;
    }

    /* Pricing features listesi tek kolon */
    .pricing-features-grid {
        grid-template-columns: 1fr !important;
    }
}

/* Responsive Grid & Layout Utilities */
.responsive-grid-2 {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.pricing-grid {
    display: grid;
    grid-template-columns: 1.25fr 0.75fr;
    gap: 40px;
    padding: 40px;
    align-items: center;
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.2);
    border-radius: 16px;
}

.pricing-features-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 15px;
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    margin-bottom: 20px;
}

.portal-card-preview {
    padding: 30px;
    transform: perspective(1000px) rotateY(-5deg);
    box-shadow: -20px 20px 50px rgba(0, 0, 0, 0.5);
    transition: transform 0.5s ease;
}

@media (max-width: 480px) {
    .hero-content h1 {
        font-size: 1.5rem;
    }

    .navbar-modern .logo img {
        height: 32px;
    }

    .glass {
        border-radius: 12px;
    }
}