:root {
    --bg-color: #f2f0e6; 
    --text-color: #2a2a2a;
    --accent-color: #3b7b75;
}

/* Temalar */
[data-theme="dark"] { --bg-color: #121212; --text-color: #e0e0e0; --accent-color: #e50914; }
[data-theme="retro"] { --bg-color: #f4e4bc; --text-color: #5b3921; --accent-color: #d35400; }
[data-theme="midnight"] { --bg-color: #020d18; --text-color: #4ebfff; --accent-color: #7b2cbf; }
[data-theme="light"] { --bg-color: #ffffff; --text-color: #2a2a2a; --accent-color: #3b7b75; }

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    background-color: var(--bg-color);
    color: var(--text-color);
    margin: 0; 
    min-height: 100vh; 
    display: flex; 
    align-items: center; 
    justify-content: center;
    transition: 0.4s ease; 
    overflow-x: hidden;
}

/* Navigasyon ve Logo */
.top-left-logo { position: absolute; top: 1.5rem; left: 2rem; z-index: 1000; }
.top-left-logo svg { max-width: 180px; height: auto; color: var(--text-color); }

.top-bar { position: absolute; top: 1.5rem; right: 2rem; z-index: 1000; }
.icon-nav { display: flex; gap: 1.5rem; }
.nav-item { position: relative; }
.nav-item i { font-size: 1.3rem; cursor: pointer; color: var(--text-color); opacity: 0.7; transition: 0.2s; }
.nav-item i:hover { opacity: 1; color: var(--accent-color); transform: scale(1.1); }

.tooltip {
    position: absolute; top: 160%; left: 50%; transform: translateX(-50%);
    background: var(--text-color); color: var(--bg-color);
    padding: 6px 12px; border-radius: 4px; font-size: 0.75rem;
    white-space: nowrap; opacity: 0; visibility: hidden; transition: 0.2s;
}
.nav-item:hover .tooltip { opacity: 1; visibility: visible; }

/* İçerik Alanı */
.centered-content {
    display: flex; flex-direction: column; align-items: center; justify-content: center;
    text-align: center; margin: 2rem 0; width: 100%; max-width: 800px;
}

#random-hero-poster {
    width: 100%; max-width: 620px; height: auto; aspect-ratio: 16/9; object-fit: cover;
    border-radius: 12px; box-shadow: 0 15px 40px rgba(0,0,0,0.2); margin-bottom: 2rem;
}

.main-cta-btn {
    padding: 15px 40px; border: 2px solid var(--text-color);
    background: transparent; color: var(--text-color);
    cursor: pointer; border-radius: 50px; font-weight: 600; text-transform: uppercase;
    transition: 0.3s;
}
.main-cta-btn:hover { background: var(--text-color); color: var(--bg-color); }

/* GÜNCEL 2X2 GRID YAPISI */
#image-selection-grid { 
    display: grid; 
    grid-template-columns: repeat(2, 1fr); /* Yan yana 2 adet */
    grid-template-rows: repeat(2, auto);    /* Alt alta 2 adet */
    gap: 1.5rem; 
    margin-top: 2rem; 
    width: 100%;
    max-width: 500px; /* Mobilde çok yayılmaması için */
}
#selection-screen {
    display: flex;
    flex-direction: column;
    align-items: center; /* Başlığı ve Grid'i dikey eksende ortalar */
    justify-content: center;
    width: 100%;
    text-align: center;
}

.image-item {
    overflow: hidden;
    border-radius: 12px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.1);
    transition: transform 0.3s ease;
}

.image-item img { 
    width: 100%; 
    aspect-ratio: 1/1; 
    object-fit: cover; 
    cursor: pointer; 
    display: block;
}

.image-item:hover { transform: scale(1.05); }

/* Retro Tema Özel Çerçeve */
[data-theme="retro"] .image-item { border: 4px solid #8b4513; border-radius: 4px; }

/* Öneri Ekranı Detayları */
.recommendation-item { display: flex; flex-direction: column; align-items: center; }
.rec-poster { width: 280px; border-radius: 12px; box-shadow: 0 10px 30px rgba(0,0,0,0.4); }
.rec-title { margin: 1.5rem 0 0.5rem 0; font-size: 2rem; }
.rec-director { color: var(--accent-color); font-weight: bold; margin-bottom: 1rem; }
.rec-director span { opacity: 0.7; font-weight: normal; }
.rec-overview { max-width: 600px; opacity: 0.8; line-height: 1.6; }

/* Instagram Story Tasarımı */
#insta-story-container {
    position: fixed; top: -9999px; left: -9999px;
    width: 1080px; height: 1920px; background-color: var(--bg-color);
    display: flex; flex-direction: column; align-items: center;
    justify-content: space-between; padding: 100px 60px; color: var(--text-color);
}
.story-label { font-size: 1.4rem; letter-spacing: 5px; opacity: 0.6; margin-bottom: 25px; text-transform: uppercase; }
#story-movie-poster { width: 700px; height: 1000px; object-fit: cover; border-radius: 20px; box-shadow: 0 30px 60px rgba(0,0,0,0.3); }
#story-movie-title { font-size: 3.5rem; margin-top: 35px; text-align: center; }
#story-choices-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 15px; width: 850px; }
#story-choices-grid img { width: 100%; aspect-ratio: 1/1; object-fit: cover; border-radius: 12px; }

/* Yardımcı Sınıflar */
.hidden { display: none !important; }
.spinner { border: 4px solid rgba(0,0,0,0.1); border-top: 4px solid var(--accent-color); border-radius: 50%; width: 50px; height: 50px; animation: spin 0.8s linear infinite; }
@keyframes spin { 100% { transform: rotate(360deg); } }

/* Mobil Uyumluluk */
@media (max-width: 600px) {
    .top-left-logo { left: 1rem; top: 1rem; }
    .top-left-logo svg { max-width: 120px; }
    .top-bar { right: 1rem; top: 1rem; }
    #image-selection-grid { gap: 1rem; padding: 0 20px; }
}