@import url('https://fonts.googleapis.com/css2?family=Syne:wght@400;500;600;700;800&family=Fira+Code:wght@300;400;500&family=DM+Sans:ital,wght@0,300;0,400;0,500;1,300;1,400&display=swap');

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

/* ---- Variables: dark (default) ---- */
:root {
    --bg-deep:           #0d0d1a;
    --bg-mid:            #12122b;
    --accent-blue:       #667eea;
    --accent-violet:     #764ba2;
    --accent-pink:       #f093fb;
    --accent-rose:       #f5576c;
    --text-primary:      #f0f0ff;
    --text-secondary:    #a0a0c0;
    --text-muted:        #606080;
    --glass-bg:          rgba(255,255,255,0.05);
    --glass-bg-hover:    rgba(255,255,255,0.08);
    --glass-border:      rgba(255,255,255,0.12);
    --glass-border-hover:rgba(102,126,234,0.4);
    --card-shadow:       0 8px 32px rgba(0,0,0,0.4);
    --gradient-primary:  linear-gradient(135deg,#667eea 0%,#764ba2 100%);
    --gradient-warm:     linear-gradient(135deg,#f093fb 0%,#f5576c 100%);
    --gradient-cool:     linear-gradient(135deg,#4facfe 0%,#00f2fe 100%);
    --gradient-earth:    linear-gradient(135deg,#f7971e 0%,#ffd200 100%);
    --nav-height:        70px;
}

::-webkit-scrollbar       { width: 5px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--accent-blue); border-radius: 10px; }

body {
    font-family: 'DM Sans', sans-serif;
    background-color: var(--bg-deep);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
    overflow-x: hidden;
    transition: background-color 0.35s ease, color 0.35s ease;
}

h1, h2, h3, .logo { font-family: 'Syne', sans-serif; }
code, .mono        { font-family: 'Fira Code', monospace; }

/* ---- Mesh background (fades out in light) ---- */
body::before {
    content: '';
    position: fixed;
    inset: 0;
    background:
        radial-gradient(ellipse 80% 60% at 20% 10%, rgba(102,126,234,0.13) 0%, transparent 60%),
        radial-gradient(ellipse 60% 50% at 80% 80%, rgba(118,75,162,0.10) 0%, transparent 60%),
        radial-gradient(ellipse 40% 40% at 50% 50%, rgba(240,147,251,0.05) 0%, transparent 70%);
    pointer-events: none;
    z-index: 0;
    opacity: 1;
    transition: opacity 0.35s ease;
}


/* ---- Navigation ---- */
nav {
    position: fixed;
    top: 0;
    width: 100%;
    height: var(--nav-height);
    background: rgba(13, 13, 26, 0.7);
    backdrop-filter: blur(24px);
    -webkit-backdrop-filter: blur(24px);
    border-bottom: 1px solid var(--glass-border);
    z-index: 1000;
    transition: background 0.3s ease;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
    height: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 1.15rem;
    font-weight: 700;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    letter-spacing: -0.02em;
    text-decoration: none;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 0.25rem;
    align-items: center;
}

.nav-links a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 400;
    padding: 0.4rem 0.85rem;
    border-radius: 8px;
    transition: all 0.2s ease;
    position: relative;
}
.nav-links a:hover { color: var(--text-primary); background: var(--glass-bg); }
.nav-links a.active { color: var(--accent-blue); background: var(--glass-bg); }

/* underline draw */
.nav-links a:not(.nav-pill)::after {
    content: '';
    position: absolute;
    bottom: 2px; left: 50%;
    width: 0; height: 1px;
    background: var(--accent-blue);
    transition: width 0.25s ease, left 0.25s ease;
    border-radius: 2px;
}
.nav-links a:not(.nav-pill):hover::after,
.nav-links a:not(.nav-pill).active::after { width: 60%; left: 20%; }

.nav-pill {
    background: var(--gradient-primary) !important;
    color: white !important;
    padding: 0.45rem 1.1rem !important;
    border-radius: 20px !important;
    font-weight: 500 !important;
    display: flex; align-items: center; gap: 0.4rem;
}
.nav-pill:hover {
    opacity: 0.9;
    transform: translateY(-1px);
    box-shadow: 0 4px 15px rgba(102,126,234,0.3);
}



/* ---- Layout helpers ---- */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
    position: relative;
    z-index: 1;
}

.section-label {
    font-family: 'Fira Code', monospace;
    font-size: 0.75rem;
    color: var(--accent-blue);
    letter-spacing: 0.15em;
    text-transform: uppercase;
    margin-bottom: 0.75rem;
    display: block;
}

.section-title {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 800;
    letter-spacing: -0.03em;
    line-height: 1.1;
    margin-bottom: 1rem;
}

/* shimmer on accent spans */
.section-title span {
    background: linear-gradient(90deg, var(--accent-blue) 0%, var(--accent-pink) 40%, var(--accent-blue) 80%);
    background-size: 200% auto;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: shimmer 4s linear infinite;
}
@keyframes shimmer {
    0%   { background-position: 0% center; }
    100% { background-position: 200% center; }
}

/* ---- Glass card ---- */
.glass-card {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: 16px;
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    transition: all 0.3s ease;
}
.glass-card:hover {
    background: var(--glass-bg-hover);
    border-color: var(--glass-border-hover);
    transform: translateY(-4px);
    box-shadow: 0 16px 40px rgba(0,0,0,0.2);
}

/* ---- Tags ---- */
.tag {
    display: inline-block;
    padding: 0.2rem 0.65rem;
    border-radius: 8px;
    font-size: 0.72rem;
    font-family: 'Fira Code', monospace;
    background: rgba(102,126,234,0.1);
    color: var(--accent-blue);
    border: 1px solid rgba(102,126,234,0.2);
}
.tag.pink   { background:rgba(240,147,251,0.1); color:var(--accent-pink);  border-color:rgba(240,147,251,0.2); }
.tag.orange { background:rgba(247,151,30,0.1);  color:#f7971e;             border-color:rgba(247,151,30,0.2); }
.tag.green  { background:rgba(52,211,153,0.1);  color:#34d399;             border-color:rgba(52,211,153,0.2); }

/* ---- Buttons ---- */
.btn {
    display: inline-flex; align-items: center; gap: 0.5rem;
    padding: 0.65rem 1.4rem; border-radius: 10px;
    font-size: 0.9rem; font-weight: 500;
    font-family: 'DM Sans', sans-serif;
    cursor: pointer; transition: all 0.25s ease;
    text-decoration: none; border: none;
}
.btn-primary { background: var(--gradient-primary); color: white; }
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 8px 25px rgba(102,126,234,0.35); }
.btn-ghost   { background: transparent; color: var(--text-secondary); border: 1px solid var(--glass-border); }
.btn-ghost:hover { border-color: var(--accent-blue); color: var(--accent-blue); background: rgba(102,126,234,0.05); }

/* ---- Social links ---- */
.social-links { display: flex; gap: 0.75rem; align-items: center; }
.social-links a {
    display: flex; align-items: center; justify-content: center;
    width: 42px; height: 42px;
    background: var(--glass-bg); border: 1px solid var(--glass-border);
    border-radius: 10px; color: var(--text-secondary);
    font-size: 1.1rem; text-decoration: none; transition: all 0.25s ease;
}
.social-links a:hover {
    border-color: var(--accent-blue); color: var(--accent-blue);
    background: rgba(102,126,234,0.08); transform: translateY(-2px);
}

/* ---- Footer ---- */
footer {
    border-top: 1px solid var(--glass-border);
    padding: 2rem 0; margin-top: 6rem;
    position: relative; z-index: 1;
    transition: border-color 0.35s ease;
}
.footer-inner {
    max-width: 1200px; margin: 0 auto; padding: 0 2rem;
    display: flex; justify-content: space-between;
    align-items: center; gap: 1rem; flex-wrap: wrap;
}
.footer-inner p         { color: var(--text-muted); font-size: 0.85rem; }
.footer-inner i.fa-heart  { color: var(--accent-pink); }
.footer-inner i.fa-coffee { color: #f7971e; }

/* ---- Floating cat ---- */
#floatingCat {
    position: fixed; bottom: 24px; right: 24px;
    font-size: 2.2rem; z-index: 999;
    cursor: pointer; user-select: none;
    filter: drop-shadow(0 4px 8px rgba(0,0,0,0.4));
    animation: catFloat 4s ease-in-out infinite;
    transition: transform 0.3s ease, filter 0.3s ease;
}
#floatingCat:hover { transform: scale(1.15); filter: drop-shadow(0 6px 12px rgba(102,126,234,0.5)); }
@keyframes catFloat { 0%,100%{transform:translateY(0)} 50%{transform:translateY(-10px)} }

.cat-bubble {
    position: fixed; bottom: 80px; right: 24px;
    max-width: 220px; background: var(--glass-bg);
    backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    padding: 10px 14px; border-radius: 14px 14px 4px 14px;
    font-family: 'Fira Code', monospace; font-size: 0.8rem;
    color: var(--text-primary); z-index: 998;
    pointer-events: none; animation: bubblePop 4s ease-in-out forwards;
}
@keyframes bubblePop {
    0%       { opacity:0; transform:translateY(10px) scale(0.9); }
    10%,80%  { opacity:1; transform:translateY(0) scale(1); }
    100%     { opacity:0; transform:translateY(-10px); }
}

/* ---- Scroll fade-up ---- */
.fade-up {
    opacity: 0; transform: translateY(24px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}
.fade-up.visible { opacity: 1; transform: translateY(0); }

/* stagger */
.fade-up:nth-child(1){transition-delay:0ms}
.fade-up:nth-child(2){transition-delay:60ms}
.fade-up:nth-child(3){transition-delay:120ms}
.fade-up:nth-child(4){transition-delay:180ms}
.fade-up:nth-child(5){transition-delay:240ms}
.fade-up:nth-child(6){transition-delay:300ms}
.fade-up:nth-child(7){transition-delay:360ms}
.fade-up:nth-child(8){transition-delay:420ms}
.fade-up:nth-child(9){transition-delay:480ms}
.fade-up:nth-child(10){transition-delay:540ms}
.fade-up:nth-child(11){transition-delay:600ms}
.fade-up:nth-child(12){transition-delay:660ms}
.fade-up:nth-child(13){transition-delay:720ms}
.fade-up:nth-child(14){transition-delay:780ms}
.fade-up:nth-child(15){transition-delay:840ms}
.fade-up:nth-child(16){transition-delay:900ms}
.fade-up:nth-child(17){transition-delay:960ms}
.fade-up:nth-child(18){transition-delay:1020ms}
.fade-up:nth-child(19){transition-delay:1080ms}
.fade-up:nth-child(20){transition-delay:1140ms}
.fade-up:nth-child(21){transition-delay:1200ms}
.fade-up:nth-child(22){transition-delay:1260ms}
.fade-up:nth-child(23){transition-delay:1320ms}
.fade-up:nth-child(24){transition-delay:1380ms}
.fade-up:nth-child(25){transition-delay:1440ms}
.fade-up:nth-child(26){transition-delay:1500ms}
.fade-up:nth-child(27){transition-delay:1560ms}
.fade-up:nth-child(28){transition-delay:1620ms}
.fade-up:nth-child(29){transition-delay:1680ms}
.fade-up:nth-child(30){transition-delay:1740ms}

/* ---- Reveal-text ---- */
.reveal-text { overflow: hidden; display: inline-block; }
.reveal-text span { display: inline-block; transform: translateY(110%); opacity: 0; transition: transform 0.65s cubic-bezier(0.16,1,0.3,1), opacity 0.65s ease; }
.reveal-text.visible span { transform: translateY(0); opacity: 1; }

/* ---- Cursor blink ---- */
.cursor-blink::after {
    content: '|'; margin-left: 2px;
    color: var(--accent-blue);
    animation: blink 1.1s step-end infinite;
}
@keyframes blink { 0%,100%{opacity:1} 50%{opacity:0} }

/* ---- Inline link underline ---- */
a.inline-link { position: relative; text-decoration: none; color: var(--accent-blue); }
a.inline-link::after {
    content: ''; position: absolute; bottom: -1px; left: 0;
    width: 100%; height: 1px; background: var(--accent-blue);
    transform: scaleX(0); transform-origin: right; transition: transform 0.3s ease;
}
a.inline-link:hover::after { transform: scaleX(1); transform-origin: left; }


/* ---- Responsive ---- */
@media (max-width: 768px) {
    .nav-links { gap: 0.1rem; }
    .nav-links a { font-size: 0.8rem; padding: 0.35rem 0.6rem; }
    .nav-links a::after { display: none; }
    .container { padding: 0 1.25rem; }
}
@media (max-width: 560px) {
    .nav-links .hide-sm { display: none; }
    .nav-links a { font-size: 0.75rem; padding: 0.3rem 0.5rem; }
    .logo { font-size: 1rem; }
}