:root {
    --bg-color: #ffffff; --text-primary: #000000; --text-secondary: #666666; --border-color: #e5e5e5;
    --skills-container-bg: #f0f8ff; --skill-card-bg: #e1f5fe; --skill-card-text: #1a1a1a;
    --skill-layer-1: #e9f5fe; --skill-layer-2: #e4f3fe; --accent-color: #4dd0e1; 
}
[data-theme="dark"] {
    --bg-color: #111111; --text-primary: #ffffff; --text-secondary: #a0a0a0; --border-color: #333333;
    --skills-container-bg: #1a1b1e; --skill-card-bg: #212226; --skill-card-text: #ffffff;
    --skill-layer-1: #1e1f23; --skill-layer-2: #1c1d21; --accent-color: #30e5f2; 
}
* { box-sizing: border-box; margin: 0; padding: 0; }

/* Desktop Fix for Sticky Header */
body { 
    font-family: 'Inter', sans-serif; 
    background-color: var(--bg-color); 
    color: var(--text-primary); 
    line-height: 1.6; 
    transition: background-color 0.3s ease, color 0.3s ease; 
    margin: 0; 
    padding: 0;
}

/* Centered Containers */
.navbar {
    max-width: 1000px;
    margin: 0 auto;
    padding: 20px 40px;
    display: flex; 
    justify-content: space-between; 
    align-items: center; 
    position: sticky; 
    top: 0; 
    z-index: 1000; 
    background-color: rgba(255, 255, 255, 0.95); 
    backdrop-filter: blur(10px); 
    border-bottom: 1px solid var(--border-color);
}
[data-theme="dark"] .navbar { background-color: rgba(17, 17, 17, 0.95); }

#main-content {
    max-width: 1000px;
    margin: 0 auto;
    padding: 40px 40px 0 40px;
}

.logo { font-weight: 700; font-size: 1.1rem; letter-spacing: -0.5px; }
.nav-center { display: flex; gap: 25px; }
.nav-link { text-decoration: none; color: var(--text-secondary); font-weight: 500; font-size: 0.95rem; transition: color 0.2s ease; }
.nav-link:hover { color: var(--text-primary); }
.nav-right { display: flex; align-items: center; gap: 20px; }
.lang-switch button { background: none; border: none; color: var(--text-secondary); cursor: pointer; font-weight: 500; font-size: 0.9rem; margin-left: 5px; transition: color 0.2s; }
.lang-switch button:hover, .lang-switch button.active-lang { color: var(--text-primary); }
#theme-toggle { background: none; border: none; color: var(--text-primary); cursor: pointer; display: flex; align-items: center; }
.mobile-lang { display: none; }

/* General */
.hero { margin-bottom: 120px; }
.hero h1 { font-size: 3.5rem; font-weight: 700; line-height: 1.1; letter-spacing: -1.5px; margin-bottom: 20px; max-width: 850px; }
.hero p { font-size: 1.25rem; color: var(--text-secondary); max-width: 650px; margin-bottom: 10px; }
.availability { font-size: 0.9rem !important; display: inline-flex; align-items: center; gap: 5px; margin-top: 20px; }
.section { margin-bottom: 120px; scroll-margin-top: 100px; }
.section-title { font-size: 2rem; font-weight: 700; letter-spacing: -0.5px; margin-bottom: 50px; color: var(--text-primary); }

/* Skills */
.skills-interactive-container { display: flex; gap: 40px; align-items: center; background-color: var(--skills-container-bg); padding: 60px 40px; border-radius: 32px; min-height: 400px; }
.skills-list { display: flex; flex-direction: column; gap: 16px; flex: 1; z-index: 10; position: relative; }
.skill-item { font-size: 1.4rem; font-weight: 500; color: var(--text-secondary); cursor: pointer; transition: all 0.4s; filter: blur(2px); opacity: 0.4; display: flex; align-items: center; transform: translateX(20px); }
.skill-item:hover { opacity: 0.7; filter: blur(1px); }
.skill-item.active { color: var(--text-primary); filter: blur(0); opacity: 1; font-weight: 600; transform: translateX(0); }
.skill-item.active::before { content: '→'; margin-right: 12px; font-weight: 400; font-size: 1.2rem; }
.skill-card-container { flex: 1.2; position: relative; display: flex; justify-content: center; align-items: center; width: 100%; z-index: 5;}
.card-background-layer-1, .card-background-layer-2 { position: absolute; border-radius: 24px; width: 80%; height: 100%; }
.card-background-layer-1 { background-color: var(--skill-layer-1); transform: scale(0.9) translateY(-20px); z-index: 1; }
.card-background-layer-2 { background-color: var(--skill-layer-2); transform: scale(0.95) translateY(-10px); z-index: 2; }
.skill-card { background-color: var(--skill-card-bg); color: var(--skill-card-text); padding: 40px; border-radius: 24px; font-size: 1.15rem; line-height: 1.5; position: relative; z-index: 3; box-shadow: 0 10px 40px rgba(0,0,0,0.03); min-height: 200px; display: flex; align-items: center; transition: opacity 0.3s ease; }

/* Projects Grid & Gallery */
.projects-container { display: flex; flex-direction: column; position: relative; }
.sticky-card { position: sticky; top: 120px; background-color: var(--bg-color); padding-bottom: 40px; margin-bottom: 80px; transition: opacity 0.1s ease-out; will-change: opacity; }
.project-gallery, .project-hero-gallery { position: relative; width: 100%; height: 450px; background-color: var(--skills-container-bg); border-radius: 20px; margin-bottom: 30px; border: 1px solid var(--border-color); overflow: hidden; }
.project-hero-gallery { height: 500px; margin-bottom: 60px; }
.gallery-track-container { width: 100%; height: 100%; overflow: hidden; }
.gallery-track { display: flex; height: 100%; transition: transform 0.4s; }
.gallery-slide { min-width: 100%; height: 100%; display: flex; justify-content: center; align-items: center; color: var(--text-secondary); background-size: cover; background-position: center; }
.gallery-btn { position: absolute; top: 50%; transform: translateY(-50%); background: rgba(0,0,0,0.1); border: none; color: #fff; width: 48px; height: 48px; border-radius: 50%; display: flex; justify-content: center; align-items: center; cursor: pointer; z-index: 20; font-size: 1.2rem; transition: background 0.2s; backdrop-filter: blur(4px); }
.gallery-btn:hover { background: rgba(0,0,0,0.4); }
.gallery-btn.prev { left: 20px; }
.gallery-btn.next { right: 20px; }
.proj-content { display: flex; flex-direction: row; align-items: flex-start; justify-content: space-between; gap: 20px; }
.proj-meta-text { display: flex; flex-direction: column; gap: 8px; flex: 1; }
.proj-name { font-size: 1.8rem; font-weight: 700; letter-spacing: -0.5px; }
.proj-desc { font-size: 1.1rem; color: var(--text-secondary); max-width: 700px; margin-bottom: 10px; }
.details-btn { padding: 10px 24px; background-color: var(--text-primary); color: var(--bg-color); text-decoration: none; border-radius: 30px; font-weight: 500; display: inline-block; transition: transform 0.2s; white-space: nowrap; }

/* Experience */
.experience-list { display: flex; flex-direction: column; gap: 50px; }
.exp-item { display: grid; grid-template-columns: 56px 280px 1fr; gap: 40px; align-items: start; }
.exp-logo-img { width: 56px; height: 56px; border-radius: 14px; object-fit: contain; background-color: var(--bg-color); border: 1px solid var(--border-color); padding: 4px; }
.exp-logo .placeholder-icon { width: 56px; height: 56px; border-radius: 14px; background-color: #222222; display: flex; justify-content: center; align-items: center; font-weight: 600; font-size: 1.5rem; color: #ffffff; }
.exp-meta { display: flex; flex-direction: column; gap: 6px; }
.exp-role { font-size: 1.15rem; font-weight: 600; }
.exp-company-date { color: var(--text-secondary); font-size: 0.95rem; }
.exp-desc { color: var(--text-secondary); font-size: 1.05rem; line-height: 1.6; }

/* Certificates */
.certs-list { display: grid; grid-template-columns: 1fr; gap: 24px; }
.cert-card { display: flex; align-items: center; background-color: var(--skills-container-bg); padding: 24px; border-radius: 24px; gap: 30px; transition: transform 0.2s; color: inherit; }
.cert-card:hover { transform: translateY(-3px); }
.cert-image-wrapper { position: relative; width: 140px; height: 140px; flex-shrink: 0; }
.cert-main-img { width: 100%; height: 100%; object-fit: cover; border-radius: 16px; background-color: var(--border-color); cursor: pointer; transition: transform 0.2s; }
.cert-main-img:hover { transform: scale(1.03); }
.cert-logo-img { position: absolute; bottom: -12px; left: -12px; width: 56px; height: 56px; border-radius: 50%; border: 4px solid var(--skills-container-bg); background-color: #fff; object-fit: contain; padding: 2px;}
.cert-content { flex: 1; display: flex; flex-direction: column; gap: 8px; }
.cert-content a { text-decoration: none; color: inherit; display: block; }
.cert-content a:hover .cert-title { color: var(--accent-color); transition: color 0.2s; }
.cert-title { font-size: 1.3rem; font-weight: 600; margin: 0; line-height: 1.3;}
.cert-desc { font-size: 1.05rem; color: var(--text-secondary); margin: 0; line-height: 1.5; }

/* Lightbox Modal */
#image-modal { display: none; position: fixed; z-index: 1000; padding-top: 60px; left: 0; top: 0; width: 100%; height: 100%; overflow: auto; background-color: rgba(0,0,0,0.8); backdrop-filter: blur(5px); align-items: center; justify-content: center; }
.modal-content { margin: auto; display: block; max-width: 90%; max-height: 80vh; border-radius: 12px; object-fit: contain; animation: zoom 0.3s; }
@keyframes zoom { from {transform:scale(0.9)} to {transform:scale(1)} }
.close-modal { position: absolute; top: 30px; right: 40px; color: #fff; font-size: 40px; font-weight: bold; cursor: pointer; transition: 0.3s; }
.close-modal:hover { color: var(--accent-color); }

/* About & Contact Footer */
.about-container { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; }
.about-text p { font-size: 1.15rem; color: var(--text-secondary); margin-bottom: 20px; }
.about-photos-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; align-items: start;}
.about-photo { background-color: var(--border-color); border-radius: 24px; display: flex; justify-content: center; align-items: center; color: var(--text-secondary); background-size: cover; background-position: center;}
.about-photo:nth-child(1) { height: 350px; transform: translateY(40px); }
.about-photo:nth-child(2) { height: 280px; transform: translateY(-10px); }

.contact-section { padding: 40px 0 60px 0; border-top: 1px solid var(--border-color); display: flex; justify-content: space-between; align-items: center; }
.copyright { font-size: 0.95rem; color: var(--text-secondary); font-weight: 500; }
.contact-links { display: flex; gap: 15px; align-items: center; }
.social-icon-link { display: inline-flex; align-items: center; justify-content: center; text-decoration: none; }
.social-icon-img { width: 32px; height: 32px; border-radius: 6px; object-fit: cover; transition: transform 0.2s, opacity 0.2s; border: 1px solid var(--border-color); }
.social-icon-img:hover { transform: translateY(-2px); opacity: 0.8; }

/* Project Details Page Formatting */
.project-details-page .project-header { margin-bottom: 40px; }
.pd-h1 { font-size: 3rem; font-weight: 700; letter-spacing: -1px; margin-top: 10px; margin-bottom: 20px; }
.project-year { background-color: var(--border-color); padding: 6px 14px; border-radius: 20px; font-size: 0.9rem; font-weight: 600; display: inline-block; color: var(--text-secondary);}
.project-intro { font-size: 1.3rem; color: var(--text-primary); max-width: 800px; line-height: 1.6; margin-bottom: 30px; }
.project-tags { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 40px; }
.tag { background-color: var(--skills-container-bg); padding: 8px 16px; border-radius: 20px; font-size: 0.9rem; color: var(--text-secondary); font-weight: 500;}
.project-section { margin-bottom: 60px; }
.project-h2 { font-size: 2rem; font-weight: 700; margin-bottom: 20px; }
.project-text-block { max-width: 800px; font-size: 1.15rem; color: var(--text-secondary); line-height: 1.7; white-space: pre-line; }

/* Inline Section Galleries - FIXED FOR BEST FIT */
.project-section-gallery { 
    display: grid; 
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); 
    gap: 20px; 
    margin-top: 30px; 
    align-items: start; /* Prevents stretching vertically */
}
.section-inline-img { 
    width: 100%; 
    height: auto; /* Lets the image establish its own height naturally */
    display: block;
    border-radius: 12px; 
    border: 1px solid var(--border-color); 
    cursor: pointer; 
    transition: transform 0.2s; 
}
.section-inline-img:hover { transform: scale(1.02); }

.outcome-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.outcome-card { background-color: var(--bg-color); border: 1px solid var(--border-color); padding: 30px; border-radius: 16px; box-shadow: 0 4px 20px rgba(0,0,0,0.02); }
.outcome-stat { font-size: 2.5rem; font-weight: 700; margin-bottom: 5px; color: var(--text-primary); }
.outcome-label { font-size: 1.1rem; font-weight: 600; margin-bottom: 10px; color: var(--text-primary); }
.outcome-text { font-size: 1rem; color: var(--text-secondary); line-height: 1.5; }

/* ADMIN PANEL */
#admin-panel { display: flex; justify-content: center; align-items: center; min-height: 80vh; margin-top: 40px; width: 100%;}
#admin-login-screen { text-align: center; background-color: var(--skills-container-bg); padding: 60px; border-radius: 24px; border: 1px solid var(--border-color); width: 400px;}
#admin-login-screen .auth-form { display: flex; flex-direction: column; gap: 15px; align-items: center; }
#admin-email, #admin-password { padding: 12px 20px; font-size: 1rem; border-radius: 8px; border: 1px solid var(--border-color); background-color: var(--bg-color); color: var(--text-primary); width: 100%; outline: none; font-family: inherit; }
#admin-email[readonly] { background-color: var(--border-color); color: var(--text-secondary); }
#admin-dashboard-screen { display: flex; width: 100%; height: 80vh; background-color: var(--bg-color); border: 1px solid var(--border-color); border-radius: 24px; overflow: hidden; box-shadow: 0 20px 60px rgba(0,0,0,0.1); }
.admin-sidebar { width: 250px; background-color: var(--skills-container-bg); padding: 30px 20px; display: flex; flex-direction: column; border-right: 1px solid var(--border-color); }
.admin-sidebar h2 { font-size: 1.2rem; margin-bottom: 30px; color: var(--text-primary); }
.admin-tab { background: none; border: none; text-align: left; padding: 12px 16px; font-size: 1rem; font-family: inherit; color: var(--text-secondary); cursor: pointer; border-radius: 8px; margin-bottom: 8px; font-weight: 500; transition: all 0.2s;}
.admin-tab:hover { background-color: var(--border-color); color: var(--text-primary); }
.admin-tab.active { background-color: var(--text-primary); color: var(--bg-color); }
.admin-logout-btn { margin-top: auto; background: none; border: 1px solid var(--border-color); padding: 10px; border-radius: 8px; cursor: pointer; color: var(--text-primary); font-weight: 600; }
.admin-main { flex: 1; padding: 40px; overflow-y: auto; }
.admin-header-row { display: flex; justify-content: space-between; align-items: center; margin-bottom: 30px; padding-bottom: 20px; border-bottom: 1px solid var(--border-color); }
.admin-add-btn, .admin-save-btn { background-color: var(--accent-color); color: #000; font-weight: 600; border: none; padding: 10px 20px; border-radius: 8px; cursor: pointer; font-size: 1rem; }
.admin-save-btn { width: 100%; padding: 15px; margin-top: 30px; }
.admin-cancel-btn { background-color: transparent; color: var(--text-primary); border: 1px solid var(--border-color); padding: 10px 20px; border-radius: 8px; cursor: pointer; }
.admin-table-container { width: 100%; border: 1px solid var(--border-color); border-radius: 12px; overflow: hidden; }
#admin-table { width: 100%; border-collapse: collapse; text-align: left; }
#admin-table th, #admin-table td { padding: 15px 20px; border-bottom: 1px solid var(--border-color); }
#admin-table th { background-color: var(--skills-container-bg); font-weight: 600; color: var(--text-secondary); }
.action-btn { background: none; border: none; font-weight: 600; cursor: pointer; margin-right: 15px; font-size: 0.9rem; }
.edit-btn { color: var(--accent-color); }
.del-btn { color: #ff4d4d; }
.admin-form-group { margin-bottom: 20px; }
.admin-form-group label { display: block; font-weight: 600; margin-bottom: 8px; color: var(--text-primary); }
.admin-form-group input[type="text"], .admin-form-group textarea { width: 100%; padding: 12px; border-radius: 8px; border: 1px solid var(--border-color); background-color: var(--bg-color); color: var(--text-primary); font-family: inherit; font-size: 1rem; outline: none; }
.lang-form-tabs { border-bottom: 2px solid var(--border-color); margin-bottom: 20px; display: flex; gap: 10px; }
.lang-form-tabs .tab-btn { background: none; border: none; padding: 10px 20px; font-size: 1rem; font-weight: 600; color: var(--text-secondary); cursor: pointer; border-bottom: 3px solid transparent; }
.lang-form-tabs .tab-btn.active { color: var(--text-primary); border-bottom: 3px solid var(--accent-color); }
.lang-form-content fieldset { border: 1px solid var(--border-color); border-radius: 12px; padding: 20px; margin-bottom: 20px; }
.lang-form-content legend { font-weight: 600; padding: 0 10px; color: var(--text-primary); }
.img-preview-box { display: flex; gap: 10px; margin-top: 10px; flex-wrap: wrap; }

/* =========================================
   MOBILE REPAIR OVERRIDES 
   ========================================= */
#mobile-menu-btn { display: none; background: none; border: none; color: var(--text-primary); cursor: pointer; margin-left: 15px; }

/* ---- NEW: Embed / iFrame Styling ---- */
.project-embed-wrapper {
    width: 100%;
    aspect-ratio: 16 / 9; /* Perfect for Power BI and Videos */
    background-color: var(--skills-container-bg);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    margin-bottom: 60px;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0,0,0,0.05);
}
.project-embed-wrapper.section-embed {
    margin-top: 30px;
    margin-bottom: 0;
    border-radius: 12px;
}
.project-embed-wrapper iframe {
    width: 100% !important;
    height: 100% !important;
    border: none !important;
}
/* Ensure embeds shrink nicely on mobile */
@media (max-width: 768px) {
    .project-embed-wrapper { aspect-ratio: 4 / 3; border-radius: 12px; }
}


@media (max-width: 768px) {
    .navbar { padding: 15px 20px; }
    #main-content { padding: 100px 20px 0 20px; }
    
    #mobile-menu-btn { display: flex; align-items: center; }
    .desktop-lang { display: none !important; }
    
    .nav-center {
        position: absolute; top: 60px; left: 0; width: 100%;
        background-color: var(--bg-color); flex-direction: column; align-items: center;
        padding: 30px 20px; gap: 20px; border-bottom: 1px solid var(--border-color);
        box-shadow: 0 10px 20px rgba(0,0,0,0.05); clip-path: polygon(0 0, 100% 0, 100% 0, 0 0);
        transition: clip-path 0.3s ease-in-out; z-index: 100;
    }
    .nav-center.mobile-active { clip-path: polygon(0 0, 100% 0, 100% 100%, 0 100%); }
    .mobile-lang { display: flex !important; width: 100%; justify-content: center; gap: 20px; padding-top: 20px; border-top: 1px solid var(--border-color); }

    .logo { font-size: 1rem; }
    .hero { margin-bottom: 80px; }
    .hero h1 { font-size: 2.2rem; letter-spacing: -1px; }
    .hero p { font-size: 1.1rem; }
    .section-title { font-size: 1.6rem; margin-bottom: 30px; }
    .section { margin-bottom: 80px; }
    
    .skills-interactive-container { flex-direction: column; padding: 30px 20px; }
    .project-gallery, .project-hero-gallery { height: 250px; }
    .proj-name { font-size: 1.4rem; }
    .pd-h1 { font-size: 2rem; }
    .proj-content { flex-direction: column; align-items: flex-start; gap: 15px; }
    .proj-meta-text { width: 100%; }
    .proj-desc { max-width: 100%; }
    .details-btn { width: 100%; text-align: center; }

    .exp-item { display: grid; grid-template-columns: 56px 1fr; grid-template-rows: auto auto; gap: 15px; }
    .exp-logo { grid-column: 1; grid-row: 1; }
    .exp-meta { grid-column: 2; grid-row: 1; display: flex; flex-direction: column; justify-content: center; }
    .exp-desc { grid-column: 1 / 3; grid-row: 2; margin-top: 5px; }

    .cert-image-wrapper { width: 100%; height: 200px; }
    .cert-logo-img { bottom: 10px; left: 10px; }
    .about-container { grid-template-columns: 1fr; gap: 40px; }
    .outcome-grid { grid-template-columns: 1fr; }
    .cert-card { flex-direction: column; align-items: flex-start; gap: 20px; }
    
    /* Footer Mobile */
    .contact-section { flex-direction: column-reverse; gap: 20px; }
    .contact-links { justify-content: center; }

    #admin-dashboard-screen { flex-direction: column; height: auto; min-height: 80vh; }
    .admin-sidebar { width: 100%; border-right: none; border-bottom: 1px solid var(--border-color); padding: 15px; }
    .admin-sidebar h2 { margin-bottom: 15px; }
    .admin-main { padding: 20px; }
    .admin-form-group input[type="text"], .admin-form-group textarea { width: 100%; }
}