@import url('https://fonts.googleapis.com/css2?family=Fira+Code:wght@400;600&family=Inter:wght@300;400;500;600;800&display=swap');

:root {
    --bg-dark: #030305;
    --text-light: #f8fafc;
    --text-muted: #94a3b8;
    --neon-purple: #8b5cf6;
    --neon-blue: #0ea5e9;
    --nav-bg: rgba(10, 10, 15, 0.45);
    --panel-bg: rgba(255, 255, 255, 0.015);
    --panel-border: rgba(255, 255, 255, 0.04);
    --code-bg: #050508;
    --form-bg: rgba(0, 0, 0, 0.2);
    --bubble-opacity: 0.2;
    --glow-purple: rgba(139, 92, 246, 0.4);
    --glow-blue: rgba(14, 165, 233, 0.4);
    --panel-shadow: 0 10px 40px rgba(0,0,0,0.05);
}

body.light-mode {
    --bg-dark: #f8fafc;
    --text-light: #0f172a;
    --text-muted: #64748b;
    --neon-purple: #6d28d9;
    --neon-blue: #0369a1;
    --nav-bg: rgba(255, 255, 255, 0.8);
    --panel-bg: rgba(255, 255, 255, 0.85);
    --panel-border: rgba(15, 23, 42, 0.1);
    --code-bg: #f1f5f9;
    --form-bg: rgba(255, 255, 255, 0.9);
    --bubble-opacity: 0.15;
    --glow-purple: rgba(109, 40, 217, 0.15);
    --glow-blue: rgba(3, 105, 161, 0.15);
    --panel-shadow: 0 15px 35px rgba(15, 23, 42, 0.06);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--bg-dark);
    color: var(--text-light);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    overflow-x: hidden;
    transition: background-color 0.4s ease, color 0.4s ease;
}

.bg-bubbles {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    z-index: -1;
    overflow: hidden;
    background: var(--bg-dark);
    transition: background-color 0.4s ease;
}

.bubble {
    position: absolute;
    border-radius: 50%;
    filter: blur(120px);
    opacity: var(--bubble-opacity);
    animation: floatBubble 25s infinite alternate ease-in-out;
    transition: opacity 0.4s ease;
}

.b1 { width: 50vw; height: 50vw; background: var(--neon-purple); top: -20%; left: -10%; }
.b2 { width: 45vw; height: 45vw; background: var(--neon-blue); bottom: -20%; right: -10%; animation-delay: -7s; }

@keyframes floatBubble {
    0% { transform: translate(0, 0) scale(1); }
    100% { transform: translate(8vw, 8vh) scale(1.15); }
}

.neon-purple { color: var(--neon-purple); text-shadow: 0 0 12px var(--glow-purple); transition: color 0.4s ease, text-shadow 0.4s ease; }
.neon-blue { color: var(--neon-blue); text-shadow: 0 0 12px var(--glow-blue); transition: color 0.4s ease, text-shadow 0.4s ease; }
.font-mono { font-family: 'Fira Code', monospace; }

.ios-glass-nav {
    background: var(--nav-bg);
    backdrop-filter: blur(40px);
    -webkit-backdrop-filter: blur(40px);
    padding: 15px 7%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: sticky;
    top: 0;
    z-index: 100;
    border-bottom: 1px solid var(--panel-border);
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.05);
    transition: all 0.4s ease;
}

.logo { font-size: 1.5rem; font-weight: 800; letter-spacing: -0.5px; }

.nav-controls {
    display: flex;
    align-items: center;
    gap: 20px;
}

.theme-toggle {
    cursor: pointer;
    font-size: 1.4rem;
    color: var(--text-light);
    transition: 0.3s ease;
    padding: 10px;
    z-index: 105;
    position: relative;
}

.theme-toggle:hover {
    color: var(--neon-blue);
    transform: scale(1.1);
}

.hamburger {
    display: none;
    flex-direction: column;
    gap: 6px;
    cursor: pointer;
    z-index: 110;
    padding: 5px;
}

.hamburger .line {
    display: block;
    width: 26px;
    height: 2px;
    background-color: var(--text-light);
    border-radius: 2px;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.hamburger.active .line:nth-child(1) {
    transform: translateY(8px) rotate(45deg);
    background-color: var(--neon-purple);
}

.hamburger.active .line:nth-child(2) {
    opacity: 0;
    transform: translateX(-10px);
}

.hamburger.active .line:nth-child(3) {
    transform: translateY(-8px) rotate(-45deg);
    background-color: var(--neon-purple);
}

.nav-links { display: flex; gap: 5px; list-style: none; align-items: center; }
.nav-links a {
    color: var(--text-muted);
    text-decoration: none;
    font-weight: 500;
    font-size: 0.9rem;
    letter-spacing: 0.5px;
    padding: 12px 24px;
    border-radius: 30px;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.nav-links a:hover {
    color: var(--text-light);
    background: var(--panel-border);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.05), inset 0 1px 1px var(--panel-border);
    transform: scale(1.03);
}

.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 70px 20px;
    flex-grow: 1;
    width: 100%;
    animation: fadeIn 1s ease-out;
}

.hero-fluid { text-align: center; margin-bottom: 100px; }
.profile-bubble {
    width: 170px;
    height: 170px;
    margin: 0 auto 35px auto;
    border-radius: 50%;
    padding: 4px;
    background: linear-gradient(135deg, var(--neon-purple), var(--neon-blue));
    cursor: pointer;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.2);
    transition: all 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.profile-bubble:hover {
    transform: scale(1.08) translateY(-5px);
    box-shadow: 0 25px 50px var(--glow-purple);
}

.profile-img { width: 100%; height: 100%; border-radius: 50%; object-fit: cover; border: 5px solid var(--bg-dark); transition: border-color 0.4s ease; }
.hero-print { font-size: 0.95rem; margin-bottom: 25px; color: var(--text-muted); letter-spacing: 2px; text-transform: uppercase; }
.hero-title { font-size: 4.2rem; font-weight: 800; margin-bottom: 25px; letter-spacing: -2px; line-height: 1.1; }
.hero-subtitle { font-size: 1.25rem; color: var(--text-muted); font-weight: 400; max-width: 800px; margin: 0 auto; line-height: 1.8; }

.split-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
    margin-bottom: 100px;
}

.text-fluid h3 { font-size: 2.2rem; font-weight: 700; margin-bottom: 25px; letter-spacing: -1px; }
.text-fluid p { font-size: 1.1rem; color: var(--text-muted); line-height: 1.9; margin-bottom: 20px; }

.glass-panel {
    background: var(--panel-bg);
    backdrop-filter: blur(25px);
    -webkit-backdrop-filter: blur(25px);
    border: 1px solid var(--panel-border);
    border-radius: 28px;
    padding: 45px;
    transition: transform 0.5s ease, border-color 0.5s ease, background 0.4s ease, box-shadow 0.4s ease;
    box-shadow: var(--panel-shadow);
}

.glass-panel:hover {
    border-color: var(--neon-blue);
    transform: translateY(-5px);
}

.panel-heading {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 30px;
    display: flex;
    align-items: center;
    gap: 15px;
    border-bottom: 1px solid var(--panel-border);
    padding-bottom: 20px;
    transition: border-color 0.4s ease;
}

.timeline-vertical {
    border-left: 2px solid var(--panel-border);
    padding-left: 30px;
    margin-left: 10px;
    transition: border-color 0.4s ease;
}

.timeline-node {
    position: relative;
    margin-bottom: 40px;
}

.timeline-node:last-child { margin-bottom: 0; }
.timeline-node::before {
    content: '';
    position: absolute;
    left: -37px;
    top: 5px;
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: var(--neon-purple);
    box-shadow: 0 0 15px var(--glow-purple);
}

.timeline-date { font-size: 0.9rem; color: var(--neon-blue); font-weight: 600; margin-bottom: 8px; display: block; letter-spacing: 1px; }
.timeline-title { font-size: 1.4rem; font-weight: 600; margin-bottom: 12px; color: var(--text-light); transition: color 0.4s ease; }
.timeline-desc { font-size: 1.05rem; color: var(--text-muted); line-height: 1.8; transition: color 0.4s ease; }

.skill-wrapper { margin-bottom: 30px; }
.skill-wrapper:last-child { margin-bottom: 0; }
.skill-info { display: flex; justify-content: space-between; margin-bottom: 10px; font-weight: 500; font-size: 1.05rem; }
.skill-bar-bg { width: 100%; height: 8px; background: var(--panel-border); border-radius: 10px; overflow: hidden; transition: background 0.4s ease; }
.skill-bar-fill { height: 100%; border-radius: 10px; background: linear-gradient(90deg, var(--neon-purple), var(--neon-blue)); position: relative; animation: loadBar 1.5s cubic-bezier(0.4, 0, 0.2, 1) forwards; transform-origin: left; }

@keyframes loadBar {
    0% { transform: scaleX(0); }
    100% { transform: scaleX(1); }
}

.code-block {
    background: var(--code-bg);
    border: 1px solid var(--panel-border);
    border-radius: 16px;
    padding: 25px;
    font-family: 'Fira Code', monospace;
    font-size: 0.95rem;
    color: var(--text-light);
    overflow-x: auto;
    line-height: 1.7;
    margin-top: 20px;
    transition: background 0.4s ease, color 0.4s ease, border-color 0.4s ease;
}

.form-control {
    width: 100%;
    padding: 20px;
    background: var(--form-bg);
    border: 1px solid var(--panel-border);
    color: var(--text-light);
    border-radius: 16px;
    outline: none;
    transition: 0.4s ease;
    font-family: 'Inter', sans-serif;
    margin-bottom: 25px;
    font-size: 1.05rem;
}

.form-control::placeholder {
    color: var(--text-muted);
}

.form-control:focus {
    border-color: var(--neon-purple);
    box-shadow: 0 0 20px var(--glow-purple);
}

.btn-submit {
    width: 100%;
    padding: 20px;
    background: var(--panel-bg);
    border: 1px solid var(--panel-border);
    color: var(--text-light);
    font-weight: 600;
    font-size: 1.05rem;
    letter-spacing: 1px;
    border-radius: 16px;
    cursor: pointer;
    transition: 0.4s ease;
}

.btn-submit:hover {
    background: var(--panel-border);
    border-color: var(--neon-blue);
    color: var(--neon-blue);
    transform: translateY(-2px);
    box-shadow: 0 10px 25px var(--glow-blue);
}

.scroll-top {
    position: fixed;
    bottom: 40px;
    right: 40px;
    width: 55px;
    height: 55px;
    background: var(--nav-bg);
    backdrop-filter: blur(15px);
    -webkit-backdrop-filter: blur(15px);
    border: 1px solid var(--panel-border);
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    color: var(--text-light);
    font-size: 1.5rem;
    cursor: pointer;
    z-index: 999;
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: var(--panel-shadow);
}

.scroll-top.show {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.scroll-top:hover {
    border-color: var(--neon-blue);
    color: var(--neon-blue);
    transform: translateY(-5px);
}

footer { text-align: center; padding: 50px 20px; color: var(--text-muted); font-size: 0.9rem; margin-top: auto; letter-spacing: 0.5px; transition: color 0.4s ease; }

@keyframes fadeIn { from { opacity: 0; transform: translateY(20px); } to { opacity: 1; transform: translateY(0); } }

@media (max-width: 900px) {
    .split-layout { grid-template-columns: 1fr; gap: 40px; }
    .hero-title { font-size: 2.8rem; }
    
    .hamburger { display: flex; }
    
    .nav-links {
        position: fixed;
        top: 0;
        left: -100%;
        width: 280px;
        height: 100vh;
        background: var(--nav-bg);
        backdrop-filter: blur(30px);
        -webkit-backdrop-filter: blur(30px);
        flex-direction: column;
        align-items: flex-start;
        padding: 100px 30px;
        gap: 20px;
        border-right: 1px solid var(--panel-border);
        transition: left 0.4s cubic-bezier(0.4, 0, 0.2, 1);
        box-shadow: 10px 0 30px rgba(0,0,0,0.1);
    }
    
    .nav-links.active { left: 0; }
    .nav-links a { width: 100%; display: block; padding: 15px 20px; }
    
    .scroll-top { bottom: 20px; right: 20px; width: 45px; height: 45px; font-size: 1.2rem; }
}