/* 
 * Premium Industrial Tech Design System 
 * Variables & Base Styles
 */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600&family=Outfit:wght@400;500;600;700&display=swap');

:root {
    /* Color Palette */
    --color-bg-deep: #080E1E;
    --color-bg-card: rgba(30, 41, 59, 0.7);
    --color-primary: #2DD4BF;
    /* Action Teal */
    --color-secondary: #0F172A;
    --color-text-main: #F8FAFC;
    --color-text-muted: #94A3B8;
    --color-border: rgba(255, 255, 255, 0.1);

    /* Typography */
    --font-heading: 'Outfit', sans-serif;
    --font-body: 'Inter', sans-serif;

    /* Transitions */
    --transition-smooth: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Logo & Branding */
.logo-container {
    display: flex;
    align-items: center;
    gap: 1rem;
    transition: var(--transition-smooth);
}

.logo-text {
    font-family: var(--font-heading);
    font-weight: 800;
    font-size: 1.8rem;
    letter-spacing: 0.05em;
    display: flex;
    align-items: center;
    gap: 0.8rem;
    color: var(--color-text-main);
}

.transparent-logo {
    height: 70px;
    width: auto;
    transition: var(--transition-smooth);
}

.logo-text:hover .transparent-logo {
    transform: scale(1.03);
}

.logo-name {
    font-family: var(--font-heading);
    font-weight: 700;
    background: linear-gradient(to right, #fff, var(--color-primary));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    letter-spacing: 2px;
}

.logo-icon {
    width: 32px;
    height: 32px;
    background: linear-gradient(135deg, var(--color-primary), #0ea5e9);
    border-radius: 6px;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
}

.logo-icon::after {
    content: '';
    width: 12px;
    height: 12px;
    border: 2px solid var(--color-bg-deep);
    border-radius: 2px;
}

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

body {
    background-color: var(--color-bg-deep);
    color: var(--color-text-main);
    font-family: var(--font-body);
    line-height: 1.6;
    overflow-x: hidden;
}

h1,
h2,
h3,
h4,
h5,
h6 {
    font-family: var(--font-heading);
    font-weight: 600;
    letter-spacing: -0.02em;
}

a {
    text-decoration: none;
    color: inherit;
    transition: var(--transition-smooth);
}

ul {
    list-style: none;
}

.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 2rem;
}

/* Reusable Components Classes */

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.8rem 1.8rem;
    border-radius: 8px;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition-smooth);
    font-family: var(--font-heading);
}

.btn-primary {
    background-color: var(--color-primary);
    color: var(--color-bg-deep);
    border: none;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(45, 212, 191, 0.2);
}

.btn-outline {
    background: transparent;
    border: 1px solid var(--color-border);
    color: var(--color-text-main);
}

.btn-outline:hover {
    border-color: var(--color-primary);
    color: var(--color-primary);
}

/* Cards */
.card {
    background: var(--color-bg-card);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--color-border);
    border-radius: 12px;
    padding: 2rem;
    transition: var(--transition-smooth);
}

.card:hover {
    border-color: var(--color-primary);
    transform: translateY(-5px);
}

/* Hero Section Utilities */
.hero-gradient {
    position: absolute;
    top: -10%;
    right: -10%;
    width: 50%;
    height: 60%;
    background: radial-gradient(circle, rgba(45, 212, 191, 0.08) 0%, transparent 70%);
    z-index: -1;
    pointer-events: none;
}

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 1000;
    padding: 1rem 0;
    background: var(--color-bg-deep);
    border-bottom: 1px solid var(--color-border);
    transition: var(--transition-smooth);
}

.navbar.scrolled {
    padding: 0.8rem 0;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
}

.nav-contact-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: rgba(45, 212, 191, 0.1);
    border-radius: 50%;
    color: var(--color-primary);
    margin-right: 1.5rem;
    transition: var(--transition-smooth);
    border: 1px solid rgba(45, 212, 191, 0.2);
}

.nav-contact-icon:hover {
    background: var(--color-primary);
    color: var(--color-bg-deep);
    transform: scale(1.1);
}

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

.nav-links {
    display: flex;
    gap: 1.5rem;
}

.nav-link {
    position: relative;
    padding: 0.5rem 0;
}

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

.nav-link.active::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 2px;
    background: var(--color-primary);
    box-shadow: 0 0 10px var(--color-primary);
}

/* Language Switcher */
.lang-switch {
    display: flex;
    gap: 0.5rem;
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--color-text-muted);
    margin-left: 1.5rem;
}

.lang-item {
    cursor: pointer;
    transition: var(--transition-smooth);
}

.lang-item:hover,
.lang-item.active {
    color: var(--color-primary);
}

/* Dropdown Styles */
.nav-item {
    position: relative;
}

.dropdown {
    position: absolute;
    top: 100%;
    left: 0;
    background: var(--color-secondary);
    border: 1px solid var(--color-border);
    border-radius: 8px;
    padding: 1rem 0;
    min-width: 220px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    transition: var(--transition-smooth);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
    z-index: 1001;
}

.nav-item:hover .dropdown {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.dropdown-link {
    display: block;
    padding: 0.7rem 1.5rem;
    font-size: 0.9rem;
    color: var(--color-text-muted);
    transition: var(--transition-smooth);
}

.dropdown-link:hover {
    background: rgba(45, 212, 191, 0.1);
    color: var(--color-primary);
    padding-left: 1.8rem;
}

.segments {
    padding: 5rem 0;
    position: relative;
    background: #080E1E;
    overflow: hidden;
}

.segments::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image:
        radial-gradient(circle at 2px 2px, rgba(45, 212, 191, 0.05) 1px, transparent 0);
    background-size: 40px 40px;
    pointer-events: none;
}

/* Sections */
section {
    padding: 5rem 0;
    position: relative;
}

section:nth-child(even)::after {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(45, 212, 191, 0.03) 0%, transparent 70%);
    pointer-events: none;
}

.section-title {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    text-align: center;
}

.section-subtitle {
    color: var(--color-text-muted);
    text-align: center;
    max-width: 600px;
    margin: 0 auto 4rem auto;
}

/* Footer */
footer {
    background: #04070F;
    padding: 4rem 0 2rem 0;
    border-top: 1px solid var(--color-border);
}

/* Roadmap / Timeline */
.roadmap-container {
    position: relative;
    max-width: 900px;
    margin: 4rem auto;
}

.roadmap-container::before {
    content: '';
    position: absolute;
    top: 0;
    bottom: 0;
    left: 50%;
    width: 2px;
    background: linear-gradient(to bottom, transparent, var(--color-primary), transparent);
    transform: translateX(-50%);
}

.roadmap-step {
    position: relative;
    margin-bottom: 4rem;
    width: 50%;
    padding: 0 3rem;
    z-index: 1;
}

.roadmap-step:nth-child(even) {
    margin-left: 50%;
    text-align: left;
}

.roadmap-step:nth-child(odd) {
    text-align: right;
}

.roadmap-step::after {
    content: '';
    position: absolute;
    top: 5px;
    width: 20px;
    height: 20px;
    background: var(--color-primary);
    border: 4px solid var(--color-bg-deep);
    border-radius: 50%;
    box-shadow: 0 0 15px var(--color-primary);
    z-index: 2;
}

.roadmap-step:nth-child(even)::after {
    left: -10px;
}

.roadmap-step:nth-child(odd)::after {
    right: -10px;
}

.roadmap-content {
    background: var(--color-bg-card);
    padding: 2rem;
    border-radius: 12px;
    border: 1px solid var(--color-border);
    transition: var(--transition-smooth);
}

.roadmap-content:hover {
    border-color: var(--color-primary);
    transform: translateY(-5px);
}

.roadmap-step-num {
    font-family: var(--font-heading);
    font-weight: 800;
    font-size: 3rem;
    color: rgba(45, 212, 191, 0.1);
    position: absolute;
    top: -10px;
    z-index: -1;
}

.roadmap-step:nth-child(even) .roadmap-step-num { left: 2rem; }
.roadmap-step:nth-child(odd) .roadmap-step-num { right: 2rem; }

@media (max-width: 768px) {
    .roadmap-container::before { left: 20px; }
    .roadmap-step { width: 100%; text-align: left !important; padding-left: 50px; }
    .roadmap-step:nth-child(even) { margin-left: 0; }
    .roadmap-step::after { left: 10px !important; }
    .roadmap-step:nth-child(even) .roadmap-step-num { left: 4rem; }
    .roadmap-step:nth-child(odd) .roadmap-step-num { left: 4rem; right: auto; }
}

/* Footer Social Links */
.footer-social {
    display: flex;
    gap: 1rem;
    margin-top: 1.5rem;
}

.social-link {
    width: 36px;
    height: 36px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--color-border);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-text-muted);
    transition: var(--transition-smooth);
}

.social-link:hover {
    background: var(--color-primary);
    color: var(--color-bg-deep);
    border-color: var(--color-primary);
    transform: translateY(-3px);
}

/* Projects Grid */
.project-showcase {
    background:
        linear-gradient(180deg, rgba(8, 14, 30, 0.96) 0%, rgba(6, 9, 20, 1) 100%);
}

.project-hero-copy {
    max-width: 860px;
    margin: 0 auto;
    text-align: center;
}

.project-kicker {
    display: inline-flex;
    align-items: center;
    padding: 0.35rem 0.75rem;
    border: 1px solid rgba(45, 212, 191, 0.35);
    border-radius: 999px;
    color: var(--color-primary);
    font-size: 0.78rem;
    font-weight: 700;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    margin-bottom: 1.2rem;
}

.project-stats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1rem;
    margin: 0 auto 2rem auto;
}

.project-stats div {
    border: 1px solid var(--color-border);
    background: rgba(15, 23, 42, 0.72);
    border-radius: 8px;
    padding: 1.2rem;
    min-height: 104px;
}

.project-stats strong {
    display: block;
    color: var(--color-primary);
    font-family: var(--font-heading);
    font-size: 1.8rem;
    line-height: 1;
    margin-bottom: 0.65rem;
}

.project-stats span {
    color: var(--color-text-muted);
    font-size: 0.88rem;
}

.project-filter-row span {
    border: 1px solid rgba(255, 255, 255, 0.12);
    background: rgba(255, 255, 255, 0.045);
    color: var(--color-text-muted);
    border-radius: 999px;
    padding: 0.45rem 0.75rem;
    font-size: 0.82rem;
}

.project-filter-row {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 0.75rem;
    margin: 2rem 0 3rem 0;
}

.project-filter-row span {
    color: var(--color-text-main);
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.4rem;
    margin-top: 0;
}

.project-card {
    height: 320px;
    position: relative;
    border-radius: 8px;
    overflow: hidden;
    cursor: pointer;
    border: 1px solid rgba(255, 255, 255, 0.08);
    background: #0f172a;
    box-shadow: 0 18px 40px rgba(0, 0, 0, 0.22);
}

.project-card::after {
    content: '';
    position: absolute;
    inset: 0;
    border: 1px solid transparent;
    border-radius: 8px;
    pointer-events: none;
    transition: var(--transition-smooth);
}

.project-card-analysis::after {
    border-color: rgba(45, 212, 191, 0.22);
}

.project-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.project-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    padding: 4rem 1.35rem 1.35rem 1.35rem;
    background: linear-gradient(to top, rgba(4, 7, 15, 0.98) 0%, rgba(4, 7, 15, 0.72) 54%, transparent 100%);
    color: white;
}

.project-overlay h3 {
    font-size: 1.18rem;
    line-height: 1.22;
}

.project-badge {
    display: inline-flex;
    width: fit-content;
    padding: 0.3rem 0.55rem;
    border-radius: 999px;
    background: rgba(45, 212, 191, 0.14);
    color: var(--color-primary);
    border: 1px solid rgba(45, 212, 191, 0.28);
    font-size: 0.68rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    margin-bottom: 0.75rem;
}

.project-card:hover .project-img {
    transform: scale(1.08);
}

.project-card:hover::after {
    border-color: rgba(45, 212, 191, 0.5);
}

@media (max-width: 900px) {
    .project-stats {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 560px) {
    .project-stats {
        grid-template-columns: 1fr;
    }
    .projects-grid {
        grid-template-columns: 1fr;
    }
    .project-card {
        height: 280px;
    }
}

/* ============================================================
   HAMBURGER / MOBILE NAV BUTTON
   ============================================================ */
.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 5px;
    cursor: pointer;
    padding: 8px;
    background: transparent;
    border: 1px solid var(--color-border);
    border-radius: 6px;
    z-index: 1020;
    width: 40px;
    height: 40px;
    flex-shrink: 0;
}

.mobile-menu-toggle span {
    display: block;
    width: 20px;
    height: 2px;
    background: var(--color-text-main);
    border-radius: 2px;
    transition: var(--transition-smooth);
}

.mobile-menu-toggle.active span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
}
.mobile-menu-toggle.active span:nth-child(2) {
    opacity: 0;
}
.mobile-menu-toggle.active span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
}

/* ============================================================
   MOBILE LAYOUT — ≤ 900px (Hamburger + Nav)
   ============================================================ */
@media (max-width: 900px) {
    .mobile-menu-toggle { display: flex; }

    .nav-container {
        flex-wrap: wrap;
        position: relative;
    }

    /* Desktop nav hidden, shown via .open class */
    nav {
        display: none;
        order: 10;
        width: 100%;
        border-top: 1px solid var(--color-border);
        padding: 0.5rem 0 1rem;
        background: var(--color-bg-deep);
    }
    nav.open { display: block; }

    .nav-links {
        flex-direction: column;
        gap: 0;
    }
    .nav-links > li > a.nav-link {
        display: block;
        padding: 0.9rem 1.5rem;
        border-bottom: 1px solid var(--color-border);
        font-size: 1rem;
    }

    /* Mobile dropdown */
    .dropdown {
        position: static;
        opacity: 1;
        visibility: visible;
        transform: none;
        box-shadow: none;
        border: none;
        border-radius: 0;
        background: rgba(255, 255, 255, 0.03);
        min-width: 100%;
        padding: 0;
        display: none;
        transition: none;
    }
    .nav-item.open > .dropdown { display: block; }
    .dropdown-link {
        padding: 0.65rem 3rem;
        font-size: 0.9rem;
        border-bottom: 1px solid rgba(255,255,255,0.04);
    }

    /* Hide "Fikrini Hayata Geçir" CTA on mobile */
    .nav-cta > .btn-outline { display: none; }

    /* Lang switch stays visible */
    .nav-cta { margin-left: auto; }
}

/* ============================================================
   GLOBAL MOBILE — ≤ 768px
   ============================================================ */
@media (max-width: 768px) {

    /* ── Footer ── */
    footer > .container:first-child {
        grid-template-columns: 1fr !important;
        gap: 2rem !important;
        padding-bottom: 2rem !important;
    }
    footer > .container:last-child {
        flex-direction: column !important;
        gap: 0.75rem !important;
        text-align: center;
    }
    footer > .container:last-child div {
        flex-wrap: wrap;
        justify-content: center;
        gap: 1rem;
    }

    /* ── Inline style grid overrides (attribute selectors) ── */
    [style*="grid-template-columns: 1fr 1fr"] {
        grid-template-columns: 1fr !important;
    }
    [style*="grid-template-columns: 1fr 1.5fr"] {
        grid-template-columns: 1fr !important;
    }
    [style*="grid-template-columns: 1.5fr 1fr"] {
        grid-template-columns: 1fr !important;
    }
    [style*="grid-template-columns: repeat(3, 1fr)"] {
        grid-template-columns: 1fr !important;
    }
    [style*="grid-template-columns: repeat(4, 1fr)"] {
        grid-template-columns: repeat(2, 1fr) !important;
    }
    [style*="grid-template-columns: 2fr 1fr 1fr 1.5fr"] {
        grid-template-columns: 1fr !important;
    }
    [style*="grid-template-columns: repeat(auto-fit"] {
        grid-template-columns: 1fr !important;
    }

    /* ── Hero ── */
    .hero .container {
        grid-template-columns: 1fr !important;
        gap: 2rem !important;
    }
    .hero-visual { display: none; }
    .hero { min-height: auto !important; padding: 8rem 0 4rem !important; }

    /* ── Blog & Contact grids ── */
    .blog-grid { grid-template-columns: 1fr !important; }
    .contact-grid {
        grid-template-columns: 1fr !important;
        gap: 2rem !important;
    }

    /* ── Large gaps reduction ── */
    [style*="gap: 8rem"] { gap: 3rem !important; }
    [style*="gap: 6rem"] { gap: 2.5rem !important; }
    [style*="gap: 4rem"] { gap: 2rem !important; }

    /* ── Article / section top padding ── */
    article[style*="padding-top: 12rem"],
    article[style*="padding-top:12rem"] {
        padding-top: 7rem !important;
        padding-bottom: 4rem !important;
    }
    article[style*="padding-top: 10rem"] {
        padding-top: 7rem !important;
        padding-bottom: 3rem !important;
    }
    section[style*="padding-top: 12rem"] { padding-top: 7rem !important; }
    section[style*="padding-top: 10rem"] { padding-top: 7rem !important; }
    section[style*="padding: 8rem 0"] { padding: 3rem 0 !important; }
    section[style*="padding: 6rem 0"] { padding: 3rem 0 !important; }

    /* ── Large margin-top on divs ── */
    [style*="margin-top: 6rem"] { margin-top: 2.5rem !important; }
    [style*="margin-top: 5rem"] { margin-top: 2rem !important; }
    [style*="margin-top: 4rem"] { margin-top: 2rem !important; }

    /* ── Card padding reduction ── */
    .card[style*="padding: 4rem"] { padding: 1.5rem !important; }
    .card[style*="padding: 3rem"] { padding: 1.5rem !important; }

    /* ── Headlines ── */
    .section-title { font-size: 2rem !important; }
    .hero-title { font-size: 2.2rem !important; }
    h1[style*="font-size: 4rem"] { font-size: 2.2rem !important; line-height: 1.2 !important; }
    h1[style*="font-size: 3.5rem"] { font-size: 2rem !important; line-height: 1.2 !important; }
    h1[style*="font-size: 3rem"] { font-size: 1.9rem !important; line-height: 1.2 !important; }
    h1[style*="font-size: 2.8rem"] { font-size: 1.8rem !important; line-height: 1.2 !important; }
    h2[style*="font-size: 2.5rem"] { font-size: 1.6rem !important; }
    h2[style*="font-size: 2rem"] { font-size: 1.5rem !important; }

    /* ── Blog article hero image ── */
    .blog-hero-img { height: 220px !important; }
    .blog-content { margin: 2rem auto !important; }
    .blog-content h2 { font-size: 1.5rem !important; margin: 2rem 0 1rem 0 !important; }

    /* ── Images ── */
    img { max-width: 100%; height: auto; }
    img[style*="height: 500px"] { height: 240px !important; }
    img[style*="height: 400px"] { height: 220px !important; }

    /* ── Services big intro card ── */
    .card > [style*="display: grid"] {
        display: flex !important;
        flex-direction: column !important;
    }

    /* ── Section gap ── */
    section { padding: 3rem 0; }

    /* ── Roadmap ── */
    .roadmap-container::before { left: 20px; }
    .roadmap-step { width: 100%; text-align: left !important; padding-left: 50px; margin-bottom: 2rem; }
    .roadmap-step:nth-child(even) { margin-left: 0; }
    .roadmap-step::after { left: 10px !important; }
}

/* ============================================================
   SMALL MOBILE — ≤ 480px
   ============================================================ */
@media (max-width: 480px) {
    .transparent-logo { height: 50px; }
    footer > .container:first-child { padding: 2rem 1rem !important; }
    .container { padding: 0 1.25rem; }
    .hero-title { font-size: 1.8rem !important; }
    h1[style*="font-size: 4rem"] { font-size: 1.8rem !important; }
    h1[style*="font-size: 3.5rem"] { font-size: 1.7rem !important; }
    h1[style*="font-size: 2.8rem"] { font-size: 1.6rem !important; }
    .section-title { font-size: 1.7rem !important; }
    .container[style*="max-width: 800px"] { padding: 0 1rem; }
    .btn { padding: 0.7rem 1.2rem; font-size: 0.9rem; }
    .hero-actions { flex-direction: column; gap: 1rem; }
    .hero-actions .btn { width: 100%; justify-content: center; }
    .blog-hero-img { height: 180px !important; }
    input, select, textarea { font-size: 16px !important; }
    [style*="gap: 4rem"] { gap: 1.5rem !important; }
    [style*="gap: 3rem"] { gap: 1.5rem !important; }
    [style*="gap: 2.5rem"] { gap: 1.5rem !important; }
}