:root {
    --bg: #0a0b10;
    --card-bg: #11141b;
    --accent-green: #39ff14;
    --accent-blue: #00d2ff;
    --text: #e2e8f0;
    --text-dim: #94a3b8;
    --border: #1f293b;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
    background-color: var(--bg);
    color: var(--text);
    font-family: 'Inter', sans-serif;
    line-height: 1.6;
    overflow-x: hidden;
}

/* Background Grid */
.grid-overlay {
    position: fixed; top: 0; left: 0; width: 100%; height: 100%;
    background-image: linear-gradient(var(--border) 1px, transparent 1px),
                      linear-gradient(90deg, var(--border) 1px, transparent 1px);
    background-size: 50px 50px; z-index: -1; opacity: 0.15;
}

/* Navigation */
nav {
    position: fixed; top: 0; width: 100%; z-index: 1000;
    padding: 1.2rem 8%; background: rgba(10, 11, 16, 0.95);
    backdrop-filter: blur(10px); border-bottom: 1px solid var(--border);
    display: flex; justify-content: space-between; align-items: center;
}
.logo { font-family: 'Fira Code'; font-weight: 700; color: var(--accent-blue); }
nav ul { display: flex; list-style: none; gap: 2rem; }
nav a { text-decoration: none; color: var(--text-dim); font-size: 0.85rem; font-family: 'Fira Code'; transition: 0.3s; }
nav a:hover { color: var(--accent-green); }

/* Section Styling */
section { padding: 120px 10% 60px; max-width: 1400px; margin: 0 auto; clear: both; }
.section-header { margin-bottom: 3.5rem; display: flex; align-items: center; gap: 20px; }
.section-header h2 { font-family: 'Fira Code'; font-size: 1.8rem; color: #fff; white-space: nowrap; }
.section-header .line { height: 1px; background: var(--border); width: 100%; }

/* 00. Hero / Terminal */
.hero { min-height: 100vh; display: flex; align-items: center; justify-content: center; padding-top: 100px; }
.terminal {
    width: 100%; max-width: 950px; background: #010409; 
    border: 1px solid var(--border); border-radius: 12px; overflow: hidden;
    box-shadow: 0 40px 80px rgba(0,0,0,0.8);
}
.term-head { background: #161b22; padding: 15px 20px; display: flex; gap: 8px; align-items: center; }
.dot { width: 12px; height: 12px; border-radius: 50%; }
.term-body { padding: 3rem; font-family: 'Fira Code', monospace; font-size: 1.1rem; }
.prompt { color: var(--accent-green); margin-right: 10px; font-weight: bold; }
.cmd-user { color: var(--accent-blue); }
.hero-name { font-size: 3.5rem; font-weight: 700; margin: 1rem 0; color: #fff; height: 4rem; display: flex; align-items: center; }

/* 01. Experience Timeline (Fixed Icon) */
.pipeline { border-left: 2px dashed var(--border); padding-left: 3rem; margin-left: 1rem; }
.pipe-item { 
    position: relative; margin-bottom: 3.5rem; background: var(--card-bg); 
    padding: 2rem; border-radius: 12px; border: 1px solid var(--border); 
    transition: transform 0.3s ease, border-color 0.3s ease; 
}
.pipe-item:hover { border-color: var(--accent-green); transform: translateX(10px); }

.pipe-item::before { 
    content: '\f013'; font-family: 'Font Awesome 6 Free'; font-weight: 900;
    position: absolute; left: -4.15rem; top: 1.8rem; 
    width: 35px; height: 35px; background: var(--bg); border: 1px solid var(--border);
    color: var(--accent-green); border-radius: 50%; display: flex; 
    align-items: center; justify-content: center; font-size: 0.9rem;
    transition: transform 0.3s ease; /* Smooth transition back */
    z-index: 2;
}

/* THE FIX: Move icon left by 10px when parent moves right by 10px */
.pipe-item:hover::before {
    transform: translateX(-10px);
}

/* 02. Project Grid */
.project-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 1.5rem; }
.project-card { background: var(--card-bg); border: 1px solid var(--border); padding: 2rem; border-radius: 12px; transition: 0.4s; }
.project-card:hover { border-color: var(--accent-blue); transform: translateY(-10px); }
.project-card h4 { color: var(--accent-green); margin-bottom: 1rem; font-family: 'Fira Code'; font-size: 1.1rem; }

/* 03. Skills Matrix */
.skills-matrix { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 1.5rem; }
.skill-group { background: var(--card-bg); padding: 1.8rem; border-radius: 12px; border: 1px solid var(--border); }
.skill-group h3 { color: var(--accent-blue); font-family: 'Fira Code'; font-size: 1rem; margin-bottom: 1.2rem; display: flex; align-items: center; gap: 10px; }
.tag-box { display: flex; flex-wrap: wrap; gap: 8px; }
.tag { background: rgba(255,255,255,0.04); border: 1px solid var(--border); padding: 5px 10px; border-radius: 5px; font-size: 0.8rem; font-family: 'Fira Code'; color: var(--text-dim); }

/* 04. Education */
.edu-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 1.5rem; }
.edu-card { background: var(--card-bg); padding: 2rem; border-radius: 12px; border-left: 4px solid var(--accent-blue); }
.edu-score { font-size: 1.8rem; font-weight: 700; color: var(--accent-green); font-family: 'Fira Code'; display: block; margin-top: 1rem; }

footer { padding: 4rem 10%; background: #050608; border-top: 1px solid var(--border); text-align: center; }
.contact-btn {
    display: inline-block; padding: 1rem 2.5rem; border: 1px solid var(--accent-green); 
    color: var(--accent-green); text-decoration: none; font-family: 'Fira Code';
    border-radius: 4px; margin: 2rem 0; transition: 0.3s;
}
.contact-btn:hover { background: var(--accent-green); color: #000; box-shadow: 0 0 20px rgba(57, 255, 20, 0.4); }

/* --- MOBILE OPTIMIZATION --- */
@media (max-width: 768px) {
    /* 1. Fix spacing & layout overflows */
    section { 
        padding: 100px 5% 40px; 
    }
    .section-header h2 { 
        white-space: normal; 
        font-size: 1.5rem;
    }

    /* 2. Fix Terminal UI */
    .term-body { 
        padding: 1.5rem; 
        font-size: 0.9rem; 
    }
    .hero-name { 
        font-size: 1.8rem; 
        height: auto; 
    }

    /* 3. Fix Grids (Force 1 column to prevent horizontal scrolling) */
    .project-grid, 
    .skills-matrix, 
    .edu-grid { 
        grid-template-columns: 1fr; 
    }

    /* 4. Fix Timeline Alignment */
    .pipeline {
        padding-left: 1.5rem;
        margin-left: 0.5rem;
    }
    .pipe-item::before {
        left: -2.65rem;
        width: 30px;
        height: 30px;
        font-size: 0.8rem;
    }

    /* 5. Mobile Navigation Menu Setup */
    .menu-toggle {
        display: block; 
        color: var(--accent-blue);
        font-size: 1.5rem;
        cursor: pointer;
    }
    nav ul { 
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        background: rgba(10, 11, 16, 0.98);
        flex-direction: column;
        gap: 0;
        max-height: 0; 
        overflow: hidden;
        transition: max-height 0.4s ease-in-out;
        border-bottom: 1px solid var(--border);
    }
    nav ul.active {
        max-height: 300px; 
    }
    nav ul li {
        text-align: center;
        padding: 1rem 0;
        border-top: 1px solid rgba(255,255,255,0.05);
    }
}

/* Hide Hamburger Menu on Desktop */
@media (min-width: 769px) {
    .menu-toggle { display: none; }
}