/* Hodeus Studio - Modern Monochromatic Apple-style Theme */

:root {
    --bg-deep: #FFFFFF;
    --text-main: #000000;
    --text-sec: #666666;
    --nav-bg: rgba(245, 245, 245, 0.9);
    --glass-bg: rgba(235, 235, 235, 0.7);
    --glass-border: rgba(0, 0, 0, 0.2);
    --glass-highlight: rgba(0, 0, 0, 0.3);
    --accent: #000000;
    --accent-invert: #FFFFFF;
    --card-shadow: 0 10px 30px rgba(0, 0, 0, 0.06);
    --btn-bg: rgba(0, 0, 0, 0.03);
    --btn-border: rgba(0, 0, 0, 0.2);
    --logo-glow: rgba(0, 0, 0, 0.05);
}

[data-theme="dark"] {
    --bg-deep: #000000;
    --logo-glow: rgba(255, 255, 255, 0.06);
    --text-main: #FFFFFF;
    --text-sec: #999999;
    --nav-bg: rgba(20, 20, 20, 0.9);
    --glass-bg: rgba(35, 35, 35, 0.7);
    --glass-border: rgba(255, 255, 255, 0.25);
    --glass-highlight: rgba(255, 255, 255, 0.35);
    --accent: #FFFFFF;
    --accent-invert: #000000;
    --card-shadow: 0 10px 30px rgba(255, 255, 255, 0.05);
    --btn-bg: rgba(255, 255, 255, 0.06);
    --btn-border: rgba(255, 255, 255, 0.35);
}

html { 
    scroll-padding-top: 90px;
}

* { 
    margin: 0; 
    padding: 0; 
    box-sizing: border-box; 
    -webkit-tap-highlight-color: transparent; 
}

body {
    font-family: 'Inter', -apple-system, sans-serif;
    background-color: var(--bg-deep);
    color: var(--text-main);
    overflow-x: hidden;
    transition: background-color 0.5s ease, color 0.5s ease;
    user-select: none;
}

body.modal-open { 
    overflow: hidden; 
    position: fixed; 
    width: 100%; 
}

/* Minimalist Background (Replacing Mesh Gradient) */
.mesh-bg {
    position: fixed;
    top: 0; left: 0; width: 100vw; height: 100vh;
    z-index: -1;
    background: radial-gradient(circle at 50% 0%, var(--glass-highlight) 0%, transparent 60%);
    opacity: 0.5;
    pointer-events: none;
}

/* --- Topo Field background (WebGL topographic lines) --- */
.topo-bg {
    position: fixed;
    inset: 0;
    z-index: -2;
    pointer-events: none;
}
.topo-bg canvas {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    display: block;
    transition: opacity 0.5s ease;
}
.topo-veil {
    position: absolute;
    inset: 0;
    background:
        linear-gradient(to bottom, var(--bg-deep) 0%, transparent 18%, transparent 82%, var(--bg-deep) 100%),
        radial-gradient(circle at 50% 50%, transparent 0%, var(--bg-deep) 100%);
    opacity: 0.4;
    transition: background 0.5s ease;
}

/* --- NAVIGATION --- */
.nav-container {
    position: fixed; top: 15px; left: 0; right: 0; margin: 0 auto;
    width: 92%; max-width: 1200px; z-index: 1000;
    background: var(--nav-bg); backdrop-filter: blur(25px); -webkit-backdrop-filter: blur(25px);
    border: 1px solid var(--glass-border); border-radius: 20px;
    padding: 10px 20px; display: flex; justify-content: space-between; align-items: center;
    box-shadow: var(--card-shadow);
    transition: background-color 0.5s ease, border-color 0.5s ease, box-shadow 0.5s ease, backdrop-filter 0.5s ease;
}

.nav-container.menu-open {
    background: transparent;
    border-color: transparent;
    box-shadow: none;
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
}

.nav-container.menu-open .nav-logo,
.nav-container.menu-open .nav-actions > *:not(.hamburger) {
    opacity: 0;
    pointer-events: none;
    visibility: hidden;
}

/* Removed back-btn */


.nav-logo { display: flex; align-items: center; gap: 10px; text-decoration: none; color: var(--text-main); font-weight: 700; }
.nav-logo img { height: 32px; border-radius: 0; object-fit: contain; } /* No border radius on the new transparent logo */

.nav-links { display: flex; gap: 20px; list-style: none; }
.nav-links a { text-decoration: none; color: var(--text-main); opacity: 0.75; font-size: 0.9rem; font-weight: 500; transition: all 0.3s ease; }
.nav-links a:hover, .nav-links a.active-nav { opacity: 1; color: var(--text-main); font-weight: 700; }

.nav-actions { display: flex; align-items: center; gap: 10px; }
/* Hamburger Menu */
.hamburger {
    display: none; background: transparent; border: none; flex-direction: column; gap: 5px; width: 30px; z-index: 1001; cursor: pointer;
}
.hamburger span {
    display: block; width: 100%; height: 3px; background: var(--text-main); border-radius: 3px;
    transition: all 0.3s ease;
}
.hamburger.open span:nth-child(1) { transform: rotate(45deg) translate(6px, 5px); }
.hamburger.open span:nth-child(2) { opacity: 0; }
.hamburger.open span:nth-child(3) { transform: rotate(-45deg) translate(6px, -5px); }

/* Mobile Menu Overlay */
.mobile-nav {
    position: fixed; top: 0; left: 0; width: 100%; height: 100vh;
    background: var(--bg-deep);
    display: flex; flex-direction: column; justify-content: center; align-items: center; gap: 40px;
    opacity: 0; visibility: hidden; transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1); z-index: 999;
    transform: translateY(-20px); border: none; border-radius: 0; padding: 0; box-shadow: none; margin: 0;
}
.mobile-nav.open { opacity: 1; visibility: visible; transform: translateY(0); }
.mobile-nav a.mobile-link { font-size: 2rem; font-weight: 700; color: var(--text-main); text-decoration: none; transition: 0.3s; opacity: 1; padding: 0; background: transparent; }
.mobile-nav a.mobile-link:hover { transform: scale(1.1); color: var(--text-main); }

/* --- HERO --- */
.hero { min-height: 100vh; display: flex; flex-direction: column; justify-content: center; align-items: center; text-align: center; padding: 120px 20px 60px 20px; }
.hero-main-logo { height: 120px; width: auto; max-width: 300px; object-fit: contain; margin-bottom: 25px; animation: float 6s ease-in-out infinite; }
@keyframes float { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-10px); } }

.hero h1 { font-size: clamp(2.8rem, 10vw, 5.5rem); font-weight: 800; letter-spacing: -2px; line-height: 1.1; margin-bottom: 40px; max-width: 900px; display: inline-block; min-height: 2.2em; }
.hero p { font-size: 1.2rem; color: var(--text-sec); margin-bottom: 40px; max-width: 600px; line-height: 1.6; }

.typewriter-text { position: relative; }
.cursor { display: inline-block; width: 4px; height: 0.8em; background: var(--accent); margin-left: 5px; vertical-align: middle; animation: blink 0.8s infinite; border-radius: 2px; }
@keyframes blink { 50% { opacity: 0; } }

.hero-btns { display: flex; gap: 15px; }
.apple-btn { padding: 16px 32px; border-radius: 99px; font-weight: 600; text-decoration: none; display: inline-flex; align-items: center; justify-content: center; gap: 12px; transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1); font-size: 1rem; }
.btn-primary { background: var(--text-main); color: var(--bg-deep); border: 1px solid transparent; }
.btn-secondary { background: var(--btn-bg); color: var(--text-main); border: 1px solid var(--btn-border); }

@media (hover: hover) { .apple-btn:hover { transform: scale(1.05); } }
@media (hover: none) { .apple-btn:active { transform: scale(0.94); } }

/* --- SECTIONS --- */
section { padding: 120px 0; max-width: 1100px; margin: 0 auto; width: 90%; }
.section-title { text-align: center; font-size: 3rem; font-weight: 800; margin-bottom: 60px; letter-spacing: -1.5px; color: var(--text-main); }

.card { 
    background: var(--glass-bg); 
    border: 1px solid var(--glass-border); 
    border-radius: 24px; 
    backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px); 
    box-shadow: var(--card-shadow); 
    transition: border-color 0.4s, box-shadow 0.4s, transform 0.3s; 
    overflow: hidden; 
}
        
@media (hover: hover) {
    .card:hover { border-color: var(--glass-highlight); box-shadow: 0 15px 40px rgba(0, 0, 0, 0.1); transform: translateY(-5px); }
}

/* Projects */
.project-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); gap: 30px; }
.project-card { display: flex; flex-direction: column; align-items: center; text-align: center; padding-top: 30px; position: relative; }
.project-card img { width: 120px; height: 120px; object-fit: contain; margin-bottom: 20px; }
.p-content { padding: 0 25px 30px 25px; width: 100%; display: flex; flex-direction: column; align-items: center; }
.p-content h3 { margin-bottom: 15px; font-size: 1.5rem; color: var(--text-main); }
.p-content p { color: var(--text-sec); font-size: 0.95rem; line-height: 1.6; margin-bottom: 25px; }
.project-card .apple-btn { padding: 10px 24px; font-size: 0.85rem; border-radius: 99px; }

.project-card .logo-wrapper {
    position: relative;
    display: inline-flex;
    justify-content: center;
    align-items: center;
    margin-bottom: 20px;
    z-index: 1;
}
.project-card .logo-wrapper::before {
    content: "";
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 280px;
    height: 280px;
    background: radial-gradient(circle, var(--logo-glow) 0%, rgba(255,255,255,0) 70%);
    z-index: -1;
    pointer-events: none;
}
.project-card .logo-wrapper img {
    margin-bottom: 0; /* Override old margin */
}

/* Featured Project */
.featured-project { grid-column: 1 / -1; flex-direction: row; align-items: center; justify-content: space-between; padding: 60px 50px 40px 50px; border: 2px solid var(--text-main); }
.featured-project .badge { position: absolute; top: 20px; left: 30px; background: var(--text-main); color: var(--bg-deep); padding: 6px 14px; border-radius: 20px; font-size: 0.75rem; font-weight: 700; text-transform: uppercase; letter-spacing: 1px; }
.featured-project img { width: 200px; height: 200px; margin-right: 40px; margin-bottom: 0; }
.featured-project .p-content { align-items: flex-start; text-align: left; padding: 0; }
.featured-project .p-content h3 { font-size: 2.2rem; }
.featured-project .p-content p { font-size: 1.1rem; max-width: 600px; }
.featured-project .logo-wrapper::before {
    width: 400px;
    height: 400px;
}
@media (max-width: 768px) {
    .featured-project { flex-direction: column; text-align: center; padding: 60px 20px 30px 20px; }
    .featured-project img { width: 140px; height: 140px; margin-right: 0; margin-bottom: 20px; }
    .featured-project .p-content { align-items: center; text-align: center; }
    .featured-project .p-content h3 { font-size: 1.8rem; }
    .featured-project .badge { left: 50%; transform: translateX(-50%); top: 20px; }
}

/* Contact */
.contact-box { padding: 40px; display: flex; flex-direction: column; gap: 15px; align-items: center; max-width: 500px; margin: 0 auto; }
.contact-item { 
    display: flex; align-items: center; gap: min(2vw, 10px); text-decoration: none; color: var(--text-main); font-weight: 600; 
    font-size: min(3.8vw, 1rem); width: 100%; 
    padding: min(3vw, 14px) min(3.5vw, 16px); background: var(--btn-bg); border: 1px solid var(--btn-border); border-radius: 16px; transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1); 
    white-space: nowrap; box-sizing: border-box; overflow: hidden;
}
.contact-item:hover, .contact-item:active { background: var(--text-main); color: var(--bg-deep); border-color: transparent; }
.contact-item i { font-size: min(4vw, 1.4rem); color: var(--text-main); width: min(8vw, 30px); text-align: center; transition: color 0.3s; }
.contact-item:hover i, .contact-item:active i { color: var(--bg-deep); }
.contact-item button { margin-left: auto; background: transparent; border: 1px solid currentColor; border-radius: 8px; padding: min(1vw, 4px) min(2.5vw, 10px); color: currentColor; cursor: pointer; font-size: min(3vw, 0.8rem); transition: all 0.3s; flex-shrink: 0; }

/* Team */
.team-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 30px; justify-content: center; }
.team-card { padding: 40px; text-align: center; }
.team-card img { width: 120px; height: 120px; border-radius: 50%; margin-bottom: 20px; object-fit: cover; }
.team-card h3 { margin-bottom: 5px; }
.social-row { display: flex; justify-content: center; gap: 30px; margin-top: 25px; }
.social-item { display: flex; flex-direction: column; align-items: center; gap: 8px; }
.social-text { font-size: 0.8rem; color: var(--text-sec); font-weight: 500; transition: color 0.3s ease; }
.s-link { width: 45px; height: 45px; border-radius: 50%; background: var(--btn-bg); border: 1px solid var(--btn-border); display: flex; align-items: center; justify-content: center; color: var(--text-main); text-decoration: none; transition: 0.3s; }
.social-item:hover .social-text { color: var(--text-main); }
.s-link:hover { background: var(--text-main); color: var(--bg-deep); border-color: transparent; transform: translateY(-3px); }

/* Quotes */
.quote-section { padding: 60px 0; display: flex; justify-content: center; }
.quotes-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 40px; max-width: 1000px; width: 92%; margin: 0 auto; }
.quote-container { text-align: center; position: relative; padding: 50px 40px; display: flex; flex-direction: column; justify-content: center; align-items: center; background: var(--glass-bg); border: 1px solid var(--glass-border); border-radius: 24px; transition: transform 0.3s; }
.quote-icon { font-size: 2.5rem; color: var(--text-sec); margin-bottom: 25px; opacity: 0.3; }
.quote-container blockquote { font-size: 1.15rem; font-weight: 500; font-style: italic; color: var(--text-main); margin: 0 0 25px 0; line-height: 1.6; }
.quote-container cite { font-size: 1rem; color: var(--text-main); font-weight: 700; font-style: normal; margin-top: auto; }

/* FAQ */
.faq-list { max-width: 800px; margin: 0 auto; }
.faq-item { margin-bottom: 15px; border-radius: 16px; overflow: hidden; background: transparent; border: 1px solid var(--glass-border); }
.faq-q { padding: 20px; cursor: pointer; display: flex; justify-content: space-between; font-weight: 600; color: var(--text-main); }
.faq-a { padding: 0 20px; max-height: 0; overflow: hidden; transition: 0.4s ease-in-out; color: var(--text-sec); font-size: 0.95rem; line-height: 1.6; }
.faq-item.active .faq-a { padding: 0 20px 20px; max-height: 300px; }

/* Animations */
.reveal { opacity: 0; transform: translateY(30px); transition: 0.8s cubic-bezier(0.2, 0.8, 0.2, 1); }
.reveal.active { opacity: 1; transform: translateY(0); }
/* İlk ekranda görünen öğeler: animasyonsuz ve garantili görünür */
.reveal.instant { transition: none; }
.reveal.instant.active { opacity: 1; transform: none; }

/* Buttons */
.btn-icon { width: 44px; height: 44px; border-radius: 50%; border: 1px solid var(--btn-border); background: var(--btn-bg); color: var(--text-main); cursor: pointer; display: flex; align-items: center; justify-content: center; transition: 0.3s; }
@media (hover: hover) { .btn-icon:hover { background: var(--text-main); color: var(--bg-deep); } }
@media (hover: none) { .btn-icon:active { transform: scale(0.95); } }

/* Footer */
footer { padding: 60px 0; text-align: center; border-top: 1px solid var(--glass-border); }
footer p { color: var(--text-sec); font-size: 0.9rem; margin-bottom: 15px; }
footer button { background: none; border: none; color: var(--text-sec); cursor: pointer; font-size: 0.9rem; transition: color 0.3s; text-decoration: underline; text-underline-offset: 4px; }
footer button:hover { color: var(--text-main); }

.featured-project .logo-wrapper::before {
    width: 400px;
    height: 400px;
}
@media (max-width: 768px) {
    .nav-links { display: none; }
    .hamburger { display: flex; }
    .hero h1 { font-size: 3rem; } 
    .hero-btns { flex-direction: column; width: 100%; max-width: 320px; }
    .apple-btn { justify-content: center; width: 100%; }
}

/* Subpage content wrappers */
.content-wrapper { padding: 150px 20px 80px 20px; max-width: 900px; margin: 0 auto; line-height: 1.8; color: var(--text-sec); }
.content-wrapper h2 { color: var(--text-main); font-size: 2.2rem; margin-bottom: 30px; letter-spacing: -1px; }
.content-wrapper h3 { color: var(--text-main); font-size: 1.5rem; margin-top: 40px; margin-bottom: 15px; }
.content-wrapper p, .content-wrapper ul { margin-bottom: 20px; }
.content-wrapper ul { padding-left: 20px; }