/* ========================================================= */
/* GLOBAL COLOR VARIABLES & THEME                            */
/* ========================================================= */
:root {
    --bg-color: #4A96AF;       /* Page Background (Dark Charcoal) */
    --card-bg: #242729;        /* Card & Header Background (Dark Slate) */
    --primary: #749BC2;        /* Accent & Button Color (Pastel Blue) */
    --primary-hover: #8BB0D6;  /* Button Hover State */
    --text-dark: #E6E4E0;      /* Primary Text Color (Off-White) */
    --text-muted: #9E9C98;     /* Muted/Secondary Text Color */
    --border-color: #34383C;   /* Borders */
    --tag-bg: #2C3A47;         /* Category Tag BG */
    --tag-text: #A8C5DA;       /* Category Tag Text */
    --input-bg: #1E2123;       /* Form Input Fields BG */
}

/* ========================================================= */
/* BASE TYPOGRAPHY & LAYOUT                                  */
/* ========================================================= */
body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    background-color: var(--bg-color);
    color: var(--text-dark);
    margin: 0;
    padding: 0;
    line-height: 1.6;
}

header {
    background-color: var(--card-bg);
    border-bottom: 1px solid var(--border-color);
    padding: 20px 40px;
}

/* Header Top Area (Logo + Titles) */
.header-top {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 20px;
    margin-bottom: 10px;
    flex-wrap: wrap;
}

.site-logo {
    height: 65px;
    width: auto;
    border-radius: 6px;
    object-fit: contain;
}

.header-titles { text-align: left; }
h1 { margin: 0; font-size: 2rem; color: var(--text-dark); }
.tagline { color: var(--text-muted); font-style: italic; margin-top: 2px; }

/* Navigation Bar & Dropdowns */
nav {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin-top: 15px;
    flex-wrap: wrap;
}

.dropdown { position: relative; display: inline-block; }

.dropbtn {
    text-decoration: none;
    color: var(--primary);
    font-weight: 600;
    padding: 8px 14px;
    border-radius: 4px;
    transition: background 0.2s;
    display: inline-block;
}

.dropdown:hover .dropbtn, a.dropbtn:hover { background-color: #2F3337; }

.dropdown-content {
    display: none;
    position: absolute;
    background-color: var(--card-bg);
    min-width: 240px;
    box-shadow: 0px 8px 16px 0px rgba(0,0,0,0.4);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    z-index: 100;
    top: 100%;
    left: 50%;
    transform: translateX(-50%);
    padding: 6px 0;
    text-align: left;
}

.dropdown-content a {
    color: var(--text-dark);
    padding: 10px 16px;
    text-decoration: none;
    display: block;
    font-size: 0.9rem;
}

.dropdown-content a:hover {
    background-color: #2F3337;
    color: var(--primary);
}

.dropdown:hover .dropdown-content { display: block; }

/* Main Content Container */
.container { max-width: 800px; margin: 40px auto; padding: 0 20px; }

/* Homepage & Category Project Grid */
.project-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 25px;
}

.card-preview {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 25px;
    box-shadow: 0 4px 10px rgba(0,0,0,0.15);
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

/* Individual Project Cards */
.project-card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 30px;
    box-shadow: 0 4px 10px rgba(0,0,0,0.15);
}

/* Project Meta Information (Tag + Upload Date) */
.project-meta {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 12px;
}

.category-tag {
    display: inline-block;
    background: var(--tag-bg);
    color: var(--tag-text);
    font-size: 0.82rem;
    font-weight: bold;
    padding: 4px 10px;
    border-radius: 12px;
}

.project-date {
    font-size: 0.85rem;
    color: var(--text-muted);
    font-style: italic;
}

.back-link { display: inline-block; margin-bottom: 15px; color: var(--primary); text-decoration: none; font-weight: bold; }
.back-link:hover { text-decoration: underline; }

/* Photo Gallery Grid */
.photo-gallery { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 15px; margin: 25px 0; }
.photo-gallery img { width: 100%; height: 180px; object-fit: cover; border-radius: 6px; border: 1px solid var(--border-color); cursor: pointer; transition: transform 0.2s; }
.photo-gallery img:hover { transform: scale(1.02); }

/* Download & Action Buttons */
.btn-view, .download-btn, .submit-btn {
    display: inline-block;
    background-color: var(--primary);
    color: #FFFFFF;
    text-decoration: none;
    padding: 10px 18px;
    border-radius: 5px;
    font-weight: bold;
    margin-top: 15px;
    text-align: center;
    border: none;
    cursor: pointer;
    font-size: 0.95rem;
    transition: background 0.2s;
}

.btn-view:hover, .download-btn:hover, .submit-btn:hover { background-color: var(--primary-hover); }

.downloads-section { margin-top: 30px; background: #1E2123; border: 1px solid var(--border-color); padding: 20px; border-radius: 6px; }

/* Contact Form Styling */
.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 6px;
    font-weight: 600;
    color: var(--text-dark);
}

.form-group input, .form-group textarea {
    width: 100%;
    padding: 12px;
    background-color: var(--input-bg);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    color: var(--text-dark);
    font-size: 0.95rem;
    box-sizing: border-box;
}

.form-group input:focus, .form-group textarea:focus {
    outline: none;
    border-color: var(--primary);
}

/* Lightbox Modal */
.lightbox { display: none; position: fixed; z-index: 1000; top: 0; left: 0; width: 100%; height: 100%; background-color: rgba(0,0,0,0.9); justify-content: center; align-items: center; cursor: pointer; }
.lightbox-content { max-width: 90%; max-height: 85vh; border-radius: 6px; object-fit: contain; }
.lightbox-close { position: absolute; top: 20px; right: 30px; color: #fff; font-size: 35px; font-weight: bold; }

footer { text-align: center; padding: 30px; color: var(--text-muted); font-size: 0.9rem; }