/* --- Variables (Neumorphism & Dark Theme) --- */
:root {
    --color-bg: #212428;
    --color-card: linear-gradient(145deg, #1e2024, #23272b);
    --color-primary: #ff014f;
    --color-text-main: #878e99;
    --color-text-light: #c4cfde;
    --color-white: #ffffff;
    
    --shadow-1: 10px 10px 19px #1c1e22, -10px -10px 19px #262a2e;
    
    --font-primary: 'Poppins', sans-serif;
    --font-secondary: 'Montserrat', sans-serif;
    --transition: all 0.3s ease-in-out;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { background-color: var(--color-bg); color: var(--color-text-main); font-family: var(--font-primary); line-height: 1.6; overflow-x: hidden;}
a { text-decoration: none; color: inherit; transition: var(--transition); }
ul { list-style: none; }

.container { max-width: 1200px; margin: 0 auto; padding: 0 20px; }
.section { padding: 100px 0; }
.text-center { text-align: center; }

.title { color: var(--color-text-light); font-family: var(--font-secondary); font-size: 50px; line-height: 1.2; margin-bottom: 20px;}
.subtitle { color: var(--color-primary); text-transform: uppercase; letter-spacing: 2px; font-size: 14px; font-weight: 500; display: block; margin-bottom: 10px;}
.description { font-size: 16px; line-height: 30px; color: var(--color-text-main); margin-bottom: 30px;}

.btn, .social-btn {
    display: inline-block; padding: 15px 30px; background: var(--color-card); box-shadow: var(--shadow-1);
    color: var(--color-primary); border-radius: 6px; font-weight: 500; transition: var(--transition); border: none; cursor: pointer; text-transform: uppercase; font-size: 14px;
}
.btn:hover, .social-btn:hover { transform: translateY(-5px); color: var(--color-white); }
.social-btn { padding: 15px 25px; margin-right: 15px; margin-top: 20px;}

/* --- Header (Optimized for GPU) --- */
.header { 
    position: fixed; top: 0; left: 0; width: 100%; 
    background: rgba(33, 36, 40, 0.95); 
    -webkit-backdrop-filter: blur(4px); 
    backdrop-filter: blur(4px); 
    z-index: 100; 
    box-shadow: 0 2px 10px rgba(0,0,0,0.3);
    will-change: backdrop-filter; 
}
.header-inner { display: flex; justify-content: space-between; align-items: center; height: 90px; }
.logo { display: flex; align-items: center; gap: 15px; font-weight: 600; color: var(--color-text-light); font-size: 16px;}
.logo img { width: 50px; height: 50px; border-radius: 50%; border: 2px solid gray; }
.nav-list { display: flex; gap: 30px; }
.nav-link { color: var(--color-text-light); text-transform: uppercase; font-size: 13px; font-weight: 500;}
.nav-link:hover { color: var(--color-primary); }
.menu-toggle { display: none; background: none; border: none; color: var(--color-primary); font-size: 28px; cursor: pointer;}

/* --- Hero Section --- */
.hero { padding-top: 180px; }
.hero-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 50px; align-items: center; }
.hero-content .title span { color: var(--color-primary); }
.hero-content .role { font-size: 36px; margin-bottom: 20px; color: var(--color-white);}
.hero-info { display: flex; flex-direction: column; gap: 10px; margin-bottom: 10px; color: var(--color-text-light); font-size: 16px;}
.image-box { background: var(--color-card); padding: 25px; border-radius: 10px; box-shadow: var(--shadow-1); }
.image-box img { width: 100%; border-radius: 8px; object-fit: cover;}

/* --- Resume Tabs --- */
.tabs-container { margin-top: 50px; }
.tabs-header { display: flex; gap: 20px; margin-bottom: 40px; background: var(--color-card); box-shadow: var(--shadow-1); border-radius: 10px; padding: 10px;}
.tab-btn { flex: 1; padding: 20px; background: transparent; border: none; color: var(--color-text-light); font-size: 16px; font-weight: 500; cursor: pointer; border-radius: 8px; transition: var(--transition);}
.tab-btn.active, .tab-btn:hover { background: var(--color-bg); box-shadow: var(--shadow-1); color: var(--color-primary); }
.tab-pane { display: none; animation: fadeIn 0.5s ease; }
.tab-pane.active { display: block; }
@keyframes fadeIn { from { opacity: 0; transform: translateY(10px);} to { opacity: 1; transform: translateY(0);} }
.pane-title { font-size: 30px; color: var(--color-text-light); margin-bottom: 30px;}

/* Timeline */
.timeline { border-left: 3px solid #17191c; padding-left: 30px; margin-top: 20px;}
.timeline-item { background: var(--color-card); box-shadow: var(--shadow-1); padding: 35px; border-radius: 8px; margin-bottom: 30px; position: relative;}
.timeline-item::before { content: ""; position: absolute; left: -42px; top: 40px; width: 20px; height: 20px; background: var(--color-bg); border: 3px solid #17191c; border-radius: 50%; transition: var(--transition);}
.timeline-item:hover::before { background: var(--color-primary); border-color: var(--color-primary);}
.timeline-header { display: flex; justify-content: space-between; border-bottom: 1px solid rgba(255,255,255,0.05); padding-bottom: 15px; margin-bottom: 15px; align-items: center;}
.timeline-header h4 { font-size: 22px; color: var(--color-text-light); margin-bottom: 5px;}
.timeline-header .role { color: var(--color-text-main); font-size: 14px;}
.timeline-header .grade { background: var(--color-card); box-shadow: var(--shadow-1); padding: 5px 15px; border-radius: 6px; color: var(--color-primary); font-weight: bold; font-size: 13px;}

/* Timeline Logo Settings */
.timeline-logo { 
    width: 55px; height: 55px; border-radius: 8px; object-fit: contain; 
    background-color: var(--color-white); padding: 5px; box-shadow: inset 0 0 5px rgba(0,0,0,0.1);
}

/* Skills */
.skills-main-container { display: flex; flex-direction: column; gap: 60px; }
.skills-category .pane-title { margin-bottom: 25px; font-size: 24px; border-bottom: 1px solid rgba(255,255,255,0.05); padding-bottom: 10px;}
.skills-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(130px, 1fr)); gap: 25px; }
.skill-card { background: var(--color-card); box-shadow: var(--shadow-1); border-radius: 10px; padding: 20px 15px; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 15px; transition: var(--transition); text-align: center; cursor: default; }
.skill-card:hover { transform: translateY(-5px); box-shadow: inset 2px 2px 5px rgba(255,255,255,0.05), 10px 10px 19px #1c1e22, -10px -10px 19px #262a2e;}
.skill-card img { width: 45px; height: 45px; object-fit: contain; transition: var(--transition);}
.skill-card:hover img { transform: scale(1.1); }
.skill-name { color: var(--color-text-light); font-size: 13px; font-weight: 500; letter-spacing: 0.5px;}
.filter-white { filter: invert(1) brightness(2); }

/* --- Portfolio Grid (Optimized for GPU) --- */
.portfolio-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(320px, 1fr)); gap: 40px; margin-top: 50px; }
.portfolio-card { 
    background: var(--color-card); box-shadow: var(--shadow-1); border-radius: 15px; 
    padding: 25px; cursor: pointer; position: relative; overflow: hidden; transition: var(--transition);
    will-change: transform; transform: translateZ(0); 
}
.portfolio-card img { width: 100%; height: 220px; object-fit: cover; border-radius: 8px; transition: var(--transition); margin-bottom: 15px;}
.portfolio-card:hover { background: #23272b; transform: translateY(-5px) translateZ(0);}
.portfolio-card:hover img { transform: scale(1.05); }
.card-overlay .category { color: var(--color-primary); font-size: 12px; text-transform: uppercase; font-weight: 500;}
.card-overlay h3 { color: var(--color-text-light); font-size: 22px; margin-top: 5px; transition: var(--transition);}
.portfolio-card:hover .card-overlay h3 { color: var(--color-primary); }

/* --- Full Footer Grid --- */
.footer { padding: 80px 0 30px; border-top: 1px solid rgba(255,255,255,0.05); margin-top: 50px; background: #191b1e; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 40px; margin-bottom: 40px; text-align: left;}
.footer-brand .logo { margin-bottom: 25px; display: inline-flex;}
.footer-socials { display: flex; gap: 15px; margin-top: 20px;}
.footer-socials .social-icon {
    width: 50px; height: 50px; display: flex; justify-content: center; align-items: center;
    background: var(--color-card); box-shadow: var(--shadow-1); border-radius: 6px;
    font-size: 14px; font-weight: bold; color: var(--color-text-light); transition: var(--transition);
}
.footer-socials .social-icon svg {
    width: 20px; height: 20px; stroke: currentColor; transition: var(--transition);
}
.footer-socials .social-icon:hover { color: var(--color-white); background: var(--color-primary); transform: translateY(-3px);}
.footer-links h4 { color: var(--color-primary); margin-bottom: 25px; text-transform: uppercase; font-size: 16px; font-weight: 600;}
.footer-links ul { display: flex; flex-direction: column; gap: 15px; }
.footer-links a { color: var(--color-text-light); transition: var(--transition); font-size: 15px;}
.footer-links a:hover { color: var(--color-primary); padding-left: 5px; }
.copyright { text-align: center; padding-top: 30px; border-top: 1px solid rgba(255,255,255,0.05); color: var(--color-text-main); font-size: 15px;}
.copyright a { color: var(--color-text-light); font-weight: 500;}
.copyright a:hover { color: var(--color-primary); }

/* =========================================
   --- NATIVE MODAL & SLIDER (FIXED) --- 
   ========================================= */
.modal { 
    margin: auto; border: none; border-radius: 15px; background: transparent; 
    max-width: 1100px; width: 95%; max-height: 90vh; overflow-y: auto; 
}
.modal::backdrop { background: rgba(0, 0, 0, 0.85); backdrop-filter: blur(5px); }

.modal-content { 
    background: var(--color-bg); padding: 40px; border-radius: 15px; position: relative; 
    box-shadow: var(--shadow-1); border: 1px solid rgba(255,255,255,0.05); 
}

.modal-close { 
    position: absolute; top: 15px; right: 15px; background: var(--color-card); border: none; 
    color: var(--color-primary); width: 40px; height: 40px; border-radius: 50%; cursor: pointer; 
    box-shadow: var(--shadow-1); font-size: 18px; transition: var(--transition); z-index: 10;
}
.modal-close:hover { background: var(--color-primary); color: white;}

.modal-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; align-items: start; }
#modal-title { font-size: 34px; color: var(--color-text-light); margin-bottom: 5px; line-height: 1.2;}

/* Scrollable Description */
#modal-desc { 
    font-size: 15px; line-height: 1.8; color: var(--color-text-main); margin-bottom: 20px; 
    max-height: 300px; overflow-y: auto; padding-right: 15px;
}
#modal-desc::-webkit-scrollbar { width: 6px; }
#modal-desc::-webkit-scrollbar-track { background: rgba(255, 255, 255, 0.05); border-radius: 10px; }
#modal-desc::-webkit-scrollbar-thumb { background: var(--color-primary); border-radius: 10px; }

.modal-links-container { display: flex; flex-wrap: wrap; gap: 15px; margin-top: 10px;}

/* Slider Box */
.slider-wrapper { 
    position: relative; width: 100%; border-radius: 10px; background: #191b1e; 
    display: flex; flex-direction: column; align-items: center; justify-content: space-between; 
    height: 100%; max-height: 500px; padding: 20px 40px 10px; box-shadow: inset 0 0 10px rgba(0,0,0,0.5);
}

.slider-container { 
    position: relative; width: 100%; height: 350px; display: flex; align-items: center; justify-content: center; margin-bottom: 15px;
}

.slider-item { display: none; width: 100%; height: 100%; text-align: center; animation: fadeSlide 0.4s ease-in-out; }
.slider-item.active { display: flex; flex-direction: column; align-items: center; justify-content: center; }
@keyframes fadeSlide { from { opacity: 0; transform: scale(0.98); } to { opacity: 1; transform: scale(1); } }

.slider-item img, .slider-item video { max-width: 100%; max-height: 300px; object-fit: contain; border-radius: 8px; }
.slider-item p.caption { margin-top: 15px; color: var(--color-text-light); font-size: 15px; }

/* Open Original Button */
.open-original-btn { display: inline-block; margin-top: 8px; font-size: 13px; color: var(--color-primary); text-transform: uppercase; letter-spacing: 1px; font-weight: 500; }
.open-original-btn:hover { color: var(--color-white); }

.slider-btn { 
    position: absolute; top: 45%; transform: translateY(-50%); background: var(--color-bg); 
    color: var(--color-primary); border: none; width: 40px; height: 40px; border-radius: 50%; 
    cursor: pointer; box-shadow: var(--shadow-1); font-size: 18px; z-index: 10; transition: var(--transition); 
}
.slider-btn:hover { background: var(--color-primary); color: var(--color-white); }
.slider-btn.prev-btn { left: -15px; }
.slider-btn.next-btn { right: -15px; }

.slider-dots { display: flex; gap: 8px; z-index: 10; margin-top: auto;}
.dot { width: 10px; height: 10px; border-radius: 50%; background: #444; cursor: pointer; transition: var(--transition); }
.dot.active { background: var(--color-primary); }

/* --- Responsive --- */
@media (max-width: 991px) {
    .hero-grid, .modal-grid { grid-template-columns: 1fr; }
    .tabs-header { flex-direction: column; gap: 10px;}
    .timeline { padding-left: 20px; }
    .timeline-item::before { left: -32px; }
    .slider-wrapper { min-height: 380px; padding: 20px; }
    .footer-grid { grid-template-columns: 1fr 1fr; gap: 30px; }
    .slider-btn.prev-btn { left: 5px; }
    .slider-btn.next-btn { right: 5px; }
}
@media (max-width: 768px) {
    .nav-list { display: none; flex-direction: column; position: absolute; top: 90px; left: 0; width: 100%; background: var(--color-bg); padding: 20px; box-shadow: 0 10px 10px rgba(0,0,0,0.3);}
    .nav-list.active { display: flex; }
    .menu-toggle { display: block; }
    .hero { padding-top: 130px; text-align: center; }
    .hero-info { align-items: center; }
    .hero-socials { justify-content: center; display: flex;}
    .footer-grid { grid-template-columns: 1fr; text-align: center; }
    .footer-brand .logo, .footer-socials { justify-content: center; }
    .skills-grid { grid-template-columns: repeat(auto-fill, minmax(100px, 1fr)); }
}