/* ========================================= */
/* --- "MODERN BLUEPRINT" THEME STYLES --- */
/* ========================================= */

/* --- Base & Font Styling --- */
body {
    font-family: 'Outfit', sans-serif;
    scroll-behavior: smooth;
    color: #475569; /* slate-600 */
    background-color: #f8fafc; /* slate-50 */
    background-image: 
        linear-gradient(rgba(100, 116, 139, 0.1) 1px, transparent 1px),
        linear-gradient(to right, rgba(100, 116, 139, 0.1) 1px, transparent 1px);
    background-size: 2rem 2rem;
}

/* --- Reusable Component Styles --- */
.section-title { font-size: 2.25rem; font-weight: 800; color: #0f172a; }
.section-subtitle { margin-top: 1rem; font-size: 1.125rem; color: #475569; line-height: 1.75; }
.card-title { font-size: 1.25rem; font-weight: 600; color: #1e293b; }
.card-text { margin-top: 0.5rem; color: #475569; font-size: 0.95rem; }
.card-list { margin-top: 1rem; list-style-position: inside; list-style-type: disc; color: #475569; space-y: 0.5rem; }

/* --- Header & Navigation --- */
header { background-color: rgba(255, 255, 255, 0.8); backdrop-filter: blur(10px); border-bottom: 1px solid #e2e8f0; }
.nav-link { position: relative; transition: color 0.3s; }
.nav-link::after { content: ''; position: absolute; width: 0; height: 2px; bottom: -4px; left: 50%; transform: translateX(-50%); background-color: #2563eb; transition: width 0.3s; }
.nav-link:hover::after { width: 100%; }

/* --- Hero Image Gallery --- */
.hero-image-container {
    position: relative;
    width: 100%;
    aspect-ratio: 1 / 1; /* Makes the container a perfect square */
    border-radius: 1.5rem; /* rounded-3xl */
    overflow: hidden;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
}
.hero-image {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 0;
    transition: opacity 0.5s ease-in-out;
}
.hero-image.active {
    opacity: 1;
}
.gallery-nav-btn {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background-color: rgba(255, 255, 255, 0.7);
    color: #0f172a;
    border: 1px solid rgba(226, 232, 240, 0.8);
    border-radius: 9999px;
    padding: 0.5rem;
    cursor: pointer;
    transition: all 0.2s;
}
.gallery-nav-btn:hover {
    background-color: white;
    transform: translateY(-50%) scale(1.1);
}

/* --- Card Styling --- */
.skill-card, .project-card, .activity-card, .survey-form, .thank-you-message {
    background-color: rgba(255, 255, 255, 0.7);
    backdrop-filter: blur(12px);
    border: 1px solid rgba(226, 232, 240, 0.8);
    border-radius: 1rem;
    padding: 2rem;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.02), 0 10px 20px rgba(0, 0, 0, 0.05);
    transition: transform 0.3s, box-shadow 0.3s;
}
.skill-card:hover, .project-card:hover, .activity-card:hover { transform: translateY(-5px); box-shadow: 0 10px 15px rgba(0, 0, 0, 0.03), 0 20px 40px rgba(0, 0, 0, 0.08); }

/* --- Experience Timeline --- */
.experience-item { position: relative; margin-bottom: 3rem; }
.experience-item::before { content: ''; position: absolute; width: 1.25rem; height: 1.25rem; background-color: #2563eb; border-radius: 9999px; left: -3.65rem; top: 0.125rem; border: 5px solid #ffffff; box-shadow: 0 0 0 2px #cbd5e1; }
.item-title { font-size: 1.25rem; font-weight: 600; color: #0f172a; }
.item-subtitle { font-weight: 600; color: #475569; }
.item-date { font-size: 0.875rem; color: #64748b; margin-bottom: 1rem; }
.item-list { list-style-position: inside; list-style-type: '✓  '; padding-left: 0.5rem; space-y: 0.75rem; }

/* --- Survey Form --- */
.form-label { display: block; font-weight: 600; color: #334155; margin-bottom: 0.75rem; }
.form-radio-label { display: flex; align-items: center; cursor: pointer; padding: 0.75rem; border-radius: 0.5rem; transition: background-color 0.2s; }
.form-radio-label:hover { background-color: #f1f5f9; }
.form-radio { width: 1.25rem; height: 1.25rem; margin-right: 0.75rem; accent-color: #2563eb; }
.form-textarea { width: 100%; padding: 0.75rem; border: 1px solid #cbd5e1; border-radius: 0.5rem; transition: border-color 0.2s, box-shadow 0.2s; }
.form-textarea:focus { outline: none; border-color: #2563eb; box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.2); }
.thank-you-message { text-align: center; }

/* --- Scroll-to-Top Button --- */
#scrollTopBtn { position: fixed; bottom: 20px; right: 20px; display: none; z-index: 100; background-color: #2563eb; color: white; padding: 0.75rem; border-radius: 9999px; box-shadow: 0 4px 12px rgba(37, 99, 235, 0.4); transition: background-color 0.3s, transform 0.3s; }
#scrollTopBtn:hover { background-color: #1d4ed8; transform: scale(1.1); }

/* --- Scroll Animation --- */
.scroll-reveal { opacity: 0; transform: translateY(30px); transition: opacity 0.8s ease-out, transform 0.8s ease-out; }
.scroll-reveal.visible { opacity: 1; transform: translateY(0); }