/* =========================
   CSS VARIABLES
   ========================= */
:root {
    --bg-primary:    #ffffff;
    --bg-secondary:  #fff0f5;
    --bg-card:       #ffffff;
    --text-primary:  #1a1a1a;
    --text-secondary:#4a4a4a;
    --accent:        #ff1493;
    --accent-hover:  #ff69b4;
    --accent-light:  #ffb6d9;
    --border:        #ffc0cb;
    --shadow:        rgba(255, 20, 147, 0.1);
    --shadow-hover:  rgba(255, 20, 147, 0.2);
    --max-width:     1200px;
    --spacing-xs:    0.5rem;
    --spacing-sm:    1rem;
    --spacing-md:    2rem;
    --spacing-lg:    4rem;
    --spacing-xl:    6rem;
    --font-body:     'DM Sans', sans-serif;
    --font-heading:  'Cormorant Garamond', serif;
    --radius:        15px;
    --transition:    0.3s ease;
}

[data-theme="dark"] {
    --bg-primary:    #0a0a0a;
    --bg-secondary:  #1a1a1a;
    --bg-card:       #1f1f1f;
    --text-primary:  #ffffff;
    --text-secondary:#ffc0cb;
    --accent:        #ff69b4;
    --accent-hover:  #ff1493;
    --accent-light:  #ff69b4;
    --border:        #ff1493;
    --shadow:        rgba(255, 105, 180, 0.2);
    --shadow-hover:  rgba(255, 105, 180, 0.3);
}

/* =========================
   RESET & BASE
   ========================= */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
    font-family: var(--font-body);
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--bg-primary);
    transition: background-color var(--transition), color var(--transition);
    overflow-x: hidden;
}
h1,h2,h3,h4,h5,h6 { font-family: var(--font-heading); line-height: 1.2; margin-bottom: var(--spacing-sm); }
a { text-decoration: none; color: inherit; transition: color var(--transition); }
img { max-width: 100%; height: auto; display: block; }
ul { list-style: none; }
button { cursor: pointer; border: none; outline: none; font-family: inherit; }
.container { max-width: var(--max-width); margin: 0 auto; padding: 0 var(--spacing-md); }
.highlight { color: var(--accent); }

/* =========================
   SCROLL PROGRESS BAR
   ========================= */
#scrollProgress {
    position: fixed;
    top: 0;
    left: 0;
    height: 3px;
    width: 0%;
    background: linear-gradient(90deg, var(--accent), var(--accent-hover));
    z-index: 2000;
    transition: width 0.1s linear;
}

/* =========================
   GREETING BANNER
   ========================= */
#greetingBanner {
    background: linear-gradient(135deg, var(--accent), var(--accent-hover));
    color: white;
    text-align: center;
    padding: 0.6rem 1rem;
    font-size: 0.9rem;
    font-family: var(--font-body);
    letter-spacing: 0.03em;
    transition: all var(--transition);
}

/* =========================
   NAVIGATION BAR
   ========================= */
.navbar {
    background: var(--bg-card);
    padding: 1rem 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 2px 20px var(--shadow);
    transition: all var(--transition);
}
.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 0.5rem;
}
.logo a {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--accent);
    font-family: var(--font-heading);
    letter-spacing: 0.05em;
}
.nav-menu {
    display: flex;
    gap: 1.5rem;
    align-items: center;
    flex-wrap: wrap;
}
.nav-link {
    color: var(--text-primary);
    font-weight: 500;
    position: relative;
    padding: 0.5rem 0;
    font-size: 0.9rem;
}
.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0; left: 0;
    width: 0; height: 2px;
    background: var(--accent);
    transition: width var(--transition);
}
.nav-link:hover::after, .nav-link:focus::after { width: 100%; }

.nav-actions { display: flex; align-items: center; gap: 0.5rem; }

.theme-toggle {
    background: var(--accent);
    color: white;
    padding: 0.6rem 1.2rem;
    border-radius: 50px;
    font-size: 0.9rem;
    transition: all var(--transition);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}
.theme-toggle:hover { background: var(--accent-hover); transform: scale(1.05); }
.theme-icon { font-size: 1rem; }

.login-btn {
    background: transparent;
    color: var(--accent);
    border: 2px solid var(--accent);
    padding: 0.5rem 1rem;
    border-radius: 50px;
    font-size: 0.85rem;
    font-family: var(--font-body);
    font-weight: 500;
    transition: all var(--transition);
}
.login-btn:hover { background: var(--accent); color: white; transform: scale(1.05); }
.login-btn.admin { background: var(--accent); color: white; }

/* Hamburger button */
.hamburger {
    display: none;
    flex-direction: column;
    justify-content: space-between;
    width: 28px;
    height: 20px;
    background: none;
    border: none;
    padding: 0;
    cursor: pointer;
    z-index: 1100;
}
.hamburger span {
    display: block;
    height: 2px;
    background: var(--accent);
    border-radius: 2px;
    transition: all var(--transition);
    transform-origin: center;
}
.hamburger.open span:nth-child(1) { transform: translateY(9px) rotate(45deg); }
.hamburger.open span:nth-child(2) { opacity: 0; }
.hamburger.open span:nth-child(3) { transform: translateY(-9px) rotate(-45deg); }

/* =========================
   ADMIN BAR
   ========================= */
#adminBar {
    background: linear-gradient(135deg, #c71585, #ff1493);
    color: white;
    text-align: center;
    padding: 0.5rem 1rem;
    font-size: 0.85rem;
    font-family: var(--font-body);
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 1rem;
    flex-wrap: wrap;
}
.admin-hint { opacity: 0.85; font-size: 0.8rem; }

/* =========================
   ABOUT / HERO SECTION
   ========================= */
.about-section {
    background: var(--bg-secondary);
    padding: var(--spacing-xl) 0;
    min-height: 100vh;
    display: flex;
    align-items: center;
}
.about-content { text-align: center; max-width: 800px; margin: 0 auto; padding: 0 var(--spacing-md); }

.profile-image img {
    width: 180px;
    height: 180px;
    border-radius: 50%;
    object-fit: cover;
    display: block;
    margin: 0 auto var(--spacing-md);
    box-shadow: 0 10px 40px var(--shadow);
    border: 4px solid var(--accent);
    filter: brightness(1.05);
    animation: floatIn 0.8s ease both;
}
@keyframes floatIn { from { opacity: 0; transform: translateY(30px); } to { opacity: 1; transform: translateY(0); } }

.tagline {
    font-size: 2.5rem;
    margin-bottom: var(--spacing-sm);
    animation: fadeUp 0.8s 0.2s ease both;
    line-height: 1.4;
}
.typing-wrapper { display: block; font-size: 1.6rem; color: var(--text-secondary); min-height: 2rem; }
.typing-cursor {
    display: inline-block;
    color: var(--accent);
    font-weight: 400;
    animation: blink 0.75s step-end infinite;
}
@keyframes blink { 50% { opacity: 0; } }

.intro {
    font-size: 1.05rem;
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: var(--spacing-md);
    animation: fadeUp 0.8s 0.4s ease both;
}
@keyframes fadeUp { from { opacity: 0; transform: translateY(20px); } to { opacity: 1; transform: translateY(0); } }

.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    justify-content: center;
    margin-bottom: var(--spacing-md);
    animation: fadeUp 0.8s 0.5s ease both;
}

.name-input-wrap {
    display: flex;
    gap: 0.5rem;
    align-items: center;
}
.name-input-wrap input {
    padding: 0.6rem 1rem;
    border: 2px solid var(--border);
    border-radius: 50px;
    background: var(--bg-card);
    color: var(--text-primary);
    font-family: var(--font-body);
    font-size: 0.95rem;
    transition: all var(--transition);
    outline: none;
    width: 200px;
}
.name-input-wrap input:focus { border-color: var(--accent); transform: scale(1.02); }
.name-input-wrap button {
    padding: 0.6rem 1.2rem;
    background: var(--accent);
    color: white;
    border-radius: 50px;
    font-size: 0.9rem;
    font-family: var(--font-body);
    transition: all var(--transition);
}
.name-input-wrap button:hover { background: var(--accent-hover); transform: scale(1.05); }

.resume-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.6rem 1.4rem;
    background: transparent;
    color: var(--accent);
    border: 2px solid var(--accent);
    border-radius: 50px;
    font-size: 0.9rem;
    font-family: var(--font-body);
    font-weight: 600;
    transition: all var(--transition);
}
.resume-btn:hover { background: var(--accent); color: white; transform: translateY(-2px); box-shadow: 0 6px 20px var(--shadow-hover); }

.cert-badge {
    display: inline-block;
    margin-top: var(--spacing-sm);
    padding: 0.4rem 1rem;
    background: linear-gradient(135deg, var(--accent), var(--accent-hover));
    color: white;
    border-radius: 50px;
    font-size: 0.85rem;
    font-weight: 600;
    letter-spacing: 0.03em;
    animation: fadeUp 0.8s 0.7s ease both;
}

.social-links {
    display: flex;
    gap: var(--spacing-sm);
    justify-content: center;
    margin-top: var(--spacing-md);
    animation: fadeUp 0.8s 0.6s ease both;
}
.social-icon {
    width: 45px; height: 45px;
    border-radius: 50%;
    background: var(--bg-card);
    display: flex; align-items: center; justify-content: center;
    color: var(--accent);
    transition: all var(--transition);
    box-shadow: 0 4px 15px var(--shadow);
    font-size: 1.2rem;
}
.social-icon:hover { background: var(--accent); color: white; transform: translateY(-5px); box-shadow: 0 8px 25px var(--shadow-hover); }

/* =========================
   STATS STRIP
   ========================= */
.stats-strip {
    background: linear-gradient(135deg, var(--accent), #c71585);
    padding: 2.5rem 0;
}
.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-md);
    text-align: center;
}
.stat-item { display: flex; flex-direction: column; align-items: center; gap: 0.3rem; }
.stat-number {
    font-family: var(--font-heading);
    font-size: 3rem;
    font-weight: 600;
    color: white;
    line-height: 1;
}
.stat-label {
    font-size: 0.85rem;
    color: rgba(255,255,255,0.85);
    font-weight: 500;
    letter-spacing: 0.04em;
    text-transform: uppercase;
}

/* =========================
   EXPERIENCE / TIMELINE
   ========================= */
.experience-section {
    padding: var(--spacing-xl) 0;
    background: var(--bg-primary);
}

.timeline {
    position: relative;
    max-width: 900px;
    margin: var(--spacing-md) auto 0;
    padding: 0 var(--spacing-sm);
}
/* Vertical line */
.timeline::before {
    content: '';
    position: absolute;
    left: 50%;
    top: 0; bottom: 0;
    width: 2px;
    background: linear-gradient(180deg, var(--accent), var(--accent-hover));
    transform: translateX(-50%);
}

.timeline-item {
    position: relative;
    width: 45%;
    margin-bottom: var(--spacing-md);
}
.timeline-item[data-side="left"]  { left: 0; text-align: right; padding-right: 2rem; }
.timeline-item[data-side="right"] { left: 55%; text-align: left; padding-left: 2rem; }

.timeline-dot {
    position: absolute;
    width: 14px; height: 14px;
    border-radius: 50%;
    background: var(--accent);
    box-shadow: 0 0 0 4px var(--bg-primary), 0 0 0 6px var(--accent-light);
    top: 1rem;
}
.timeline-item[data-side="left"]  .timeline-dot { right: -7px; }
.timeline-item[data-side="right"] .timeline-dot { left: -7px; }

.timeline-card {
    background: var(--bg-card);
    border-radius: var(--radius);
    padding: 1.25rem 1.5rem;
    box-shadow: 0 5px 20px var(--shadow);
    border: 1px solid var(--border);
    transition: transform var(--transition), box-shadow var(--transition);
}
.timeline-card:hover { transform: translateY(-4px); box-shadow: 0 10px 30px var(--shadow-hover); }

.timeline-date {
    font-size: 0.78rem;
    color: var(--accent);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.08em;
}
.timeline-card h3 { font-size: 1.15rem; margin: 0.3rem 0 0.2rem; }
.timeline-place { font-size: 0.88rem; color: var(--accent); margin-bottom: 0.4rem; }
.timeline-desc { font-size: 0.88rem; color: var(--text-secondary); line-height: 1.6; }

.timeline-badge {
    display: inline-block;
    margin-top: 0.6rem;
    padding: 0.2rem 0.7rem;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
}
.timeline-badge.edu  { background: #e3f2fd; color: #1565c0; }
.timeline-badge.work { background: #e8f5e9; color: #2e7d32; }
.timeline-badge.proj { background: #fce4ec; color: #c62828; }
[data-theme="dark"] .timeline-badge.edu  { background: #1a237e40; color: #90caf9; }
[data-theme="dark"] .timeline-badge.work { background: #1b5e2040; color: #a5d6a7; }
[data-theme="dark"] .timeline-badge.proj { background: #b71c1c40; color: #ef9a9a; }

/* =========================
   SEARCH BAR
   ========================= */
.search-section {
    padding: var(--spacing-sm) 0;
    background: var(--bg-primary);
    border-bottom: 1px solid var(--border);
}
.search-wrap {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    max-width: 500px;
    margin: 0 auto;
    background: var(--bg-card);
    border: 2px solid var(--border);
    border-radius: 50px;
    padding: 0.5rem 1.2rem;
    transition: border-color var(--transition);
}
.search-wrap:focus-within { border-color: var(--accent); }
.search-wrap span { font-size: 1.1rem; color: var(--accent); }
#projectSearch {
    border: none;
    background: transparent;
    color: var(--text-primary);
    font-size: 0.95rem;
    font-family: var(--font-body);
    flex: 1;
    outline: none;
}
#projectSearch::placeholder { color: var(--text-secondary); }
#searchClear {
    background: none;
    border: none;
    color: var(--text-secondary);
    font-size: 1.1rem;
    cursor: pointer;
    padding: 0;
    line-height: 1;
}
#searchClear:hover { color: var(--accent); }

/* =========================
   PROJECTS SECTION
   ========================= */
.projects-section { padding: var(--spacing-xl) 0; background: var(--bg-secondary); }
.section-title { font-size: 2.5rem; text-align: center; margin-bottom: var(--spacing-sm); color: var(--text-primary); }
.section-subtitle { text-align: center; color: var(--text-secondary); margin-bottom: var(--spacing-md); font-size: 1.05rem; }

.filter-tabs { display: flex; gap: 0.5rem; justify-content: center; flex-wrap: wrap; margin-bottom: var(--spacing-sm); }
.filter-tab {
    padding: 0.5rem 1.2rem;
    border-radius: 50px;
    border: 2px solid var(--border);
    background: transparent;
    color: var(--text-secondary);
    font-size: 0.9rem;
    font-family: var(--font-body);
    font-weight: 500;
    transition: all var(--transition);
}
.filter-tab:hover, .filter-tab.active { background: var(--accent); color: white; border-color: var(--accent); }

.sort-controls {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    justify-content: center;
    margin-bottom: var(--spacing-md);
    flex-wrap: wrap;
}
.sort-label { color: var(--text-secondary); font-size: 0.9rem; font-weight: 500; }
.sort-btn {
    padding: 0.4rem 1rem;
    border-radius: 50px;
    border: 2px solid var(--border);
    background: transparent;
    color: var(--text-secondary);
    font-size: 0.85rem;
    font-family: var(--font-body);
    font-weight: 500;
    transition: all var(--transition);
}
.sort-btn:hover, .sort-btn.active { background: var(--bg-card); border-color: var(--accent); color: var(--accent); }

#emptyState { text-align: center; padding: 3rem; color: var(--text-secondary); display: none; }
#emptyState .empty-icon { font-size: 3rem; margin-bottom: 1rem; }

.projects-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: var(--spacing-md); }
.project-card {
    background: var(--bg-card);
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: 0 5px 25px var(--shadow);
    transition: all 0.35s ease;
}
.project-card:hover { transform: translateY(-10px); box-shadow: 0 15px 40px var(--shadow-hover); }
.project-card.hidden { display: none; }

.project-image {
    width: 100%; height: 200px;
    background: linear-gradient(135deg, #ff1493 0%, #c71585 100%);
    position: relative; overflow: hidden;
}
.image-overlay {
    position: absolute; inset: 0;
    display: flex; align-items: center; justify-content: center;
    background: rgba(0,0,0,0.15);
    transition: background var(--transition);
}
.project-card:hover .image-overlay { background: rgba(0,0,0,0.35); }
.project-icon { font-size: 3.5rem; filter: drop-shadow(0 4px 8px rgba(0,0,0,0.3)); }
.project-content { padding: 1.25rem 1.5rem; }
.project-title-row { display: flex; align-items: center; gap: 0.5rem; margin-bottom: 0.4rem; flex-wrap: wrap; }
.project-title { font-size: 1.3rem; color: var(--text-primary); margin: 0; }
.project-badge {
    font-size: 0.72rem;
    font-weight: 700;
    padding: 0.15rem 0.55rem;
    border-radius: 20px;
    background: var(--accent);
    color: white;
    letter-spacing: 0.04em;
    white-space: nowrap;
    flex-shrink: 0;
}
.project-description { color: var(--text-secondary); margin-bottom: 0.75rem; line-height: 1.6; font-size: 0.92rem; }
.project-tags { display: flex; flex-wrap: wrap; gap: 0.4rem; }
.tag {
    background: var(--bg-secondary);
    color: var(--accent);
    padding: 0.25rem 0.7rem;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
    border: 1px solid var(--border);
}

/* =========================
   SKILLS SECTION
   ========================= */
.skills-section { padding: var(--spacing-xl) 0; background: var(--bg-primary); }
.skills-layout { display: grid; grid-template-columns: 1fr 1fr; gap: var(--spacing-lg); margin-top: var(--spacing-md); align-items: start; }
.skills-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--spacing-sm); }
.skill-category {
    background: var(--bg-card);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius);
    box-shadow: 0 5px 20px var(--shadow);
    transition: all var(--transition);
    text-align: center;
}
.skill-category:hover { transform: translateY(-5px); box-shadow: 0 10px 30px var(--shadow-hover); }
.skill-icon { font-size: 2.5rem; margin-bottom: 0.5rem; }
.skill-category h3 { color: var(--accent); margin-bottom: 0.5rem; font-size: 1.1rem; }
.skill-list { list-style: none; text-align: left; }
.skill-list li { padding: 0.45rem 0; color: var(--text-secondary); border-bottom: 1px solid var(--border); font-size: 0.9rem; transition: all var(--transition); }
.skill-list li:hover { color: var(--accent); padding-left: 0.4rem; }
.skill-list li:last-child { border-bottom: none; }

/* Proficiency bars */
.proficiency-bars {
    background: var(--bg-card);
    border-radius: var(--radius);
    padding: var(--spacing-md);
    box-shadow: 0 5px 20px var(--shadow);
}
.prof-title { font-size: 1.3rem; color: var(--accent); margin-bottom: var(--spacing-sm); }
.prof-list { display: flex; flex-direction: column; gap: 1rem; }
.prof-item {}
.prof-label {
    display: flex;
    justify-content: space-between;
    font-size: 0.9rem;
    margin-bottom: 0.35rem;
    font-weight: 500;
}
.prof-pct { color: var(--accent); font-weight: 700; }
.prof-bar-track {
    height: 8px;
    background: var(--bg-secondary);
    border-radius: 4px;
    overflow: hidden;
    border: 1px solid var(--border);
}
.prof-bar-fill {
    height: 100%;
    width: 0%;
    background: linear-gradient(90deg, var(--accent), var(--accent-hover));
    border-radius: 4px;
    transition: width 1s cubic-bezier(0.4, 0, 0.2, 1);
}

/* =========================
   GITHUB REPOS SECTION
   ========================= */
.github-section { padding: var(--spacing-xl) 0; background: var(--bg-secondary); }
.github-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(290px, 1fr));
    gap: var(--spacing-md);
    margin-top: var(--spacing-md);
}
.github-loading {
    grid-column: 1 / -1;
    display: flex; flex-direction: column; align-items: center; gap: 1rem;
    padding: 3rem; color: var(--text-secondary);
}
.github-error {
    grid-column: 1 / -1;
    text-align: center;
    padding: 2rem;
    color: var(--text-secondary);
    background: var(--bg-card);
    border-radius: var(--radius);
    border: 2px dashed var(--border);
}
.github-error span { font-size: 2rem; display: block; margin-bottom: 0.5rem; }
.repo-card {
    background: var(--bg-card);
    border-radius: var(--radius);
    padding: 1.5rem;
    box-shadow: 0 5px 20px var(--shadow);
    transition: all var(--transition);
    display: flex; flex-direction: column; gap: 0.75rem;
    border: 1px solid var(--border);
}
.repo-card:hover { transform: translateY(-6px); box-shadow: 0 12px 35px var(--shadow-hover); }
.repo-name { font-family: var(--font-heading); font-size: 1.15rem; color: var(--accent); font-weight: 600; word-break: break-word; }
.repo-name a { color: inherit; transition: opacity 0.2s; }
.repo-name a:hover { opacity: 0.75; }
.repo-description { font-size: 0.88rem; color: var(--text-secondary); line-height: 1.5; flex: 1; }
.repo-meta { display: flex; align-items: center; gap: 1rem; flex-wrap: wrap; margin-top: auto; }
.repo-lang { display: flex; align-items: center; gap: 0.35rem; font-size: 0.82rem; color: var(--text-secondary); }
.lang-dot { width: 10px; height: 10px; border-radius: 50%; background: var(--accent); flex-shrink: 0; }
.repo-stars { font-size: 0.82rem; color: var(--text-secondary); }

/* =========================
   FUN FACTS SECTION
   ========================= */
.funfact-section {
    padding: var(--spacing-lg) 0;
    background: var(--bg-primary);
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
}
.funfact-inner { max-width: 700px; margin: 0 auto; text-align: center; }
.funfact-inner h2 { font-size: 1.8rem; margin-bottom: 0.5rem; }
.funfact-inner p.sub { color: var(--text-secondary); margin-bottom: 1.5rem; }
#factBox {
    background: var(--bg-card);
    border-radius: var(--radius);
    padding: 1.5rem 2rem;
    box-shadow: 0 5px 25px var(--shadow);
    min-height: 90px;
    display: flex; align-items: center; justify-content: center; flex-direction: column; gap: 0.5rem;
    transition: all var(--transition);
}
#factText { font-size: 1.05rem; color: var(--text-primary); line-height: 1.7; }
#factCategory { font-size: 0.78rem; color: var(--accent); font-weight: 600; text-transform: uppercase; letter-spacing: 0.1em; }
.fact-btn {
    margin-top: 1.2rem;
    background: var(--accent);
    color: white;
    padding: 0.8rem 2rem;
    border-radius: 50px;
    font-size: 0.95rem;
    font-family: var(--font-body);
    font-weight: 600;
    transition: all var(--transition);
    display: inline-flex; align-items: center; gap: 0.5rem;
}
.fact-btn:hover { background: var(--accent-hover); transform: translateY(-2px); box-shadow: 0 8px 20px var(--shadow-hover); }
.fact-btn:disabled { opacity: 0.6; cursor: not-allowed; transform: none; }

/* =========================
   CONTACT SECTION
   ========================= */
.contact-section { padding: var(--spacing-xl) 0; background: var(--bg-secondary); }
.contact-content { display: grid; grid-template-columns: 2fr 1fr; gap: var(--spacing-lg); margin-top: var(--spacing-md); }
.contact-form { background: var(--bg-card); padding: var(--spacing-md); border-radius: var(--radius); box-shadow: 0 5px 25px var(--shadow); }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: var(--spacing-sm); }
.form-group { margin-bottom: var(--spacing-sm); }
.form-group label { display: block; margin-bottom: 0.5rem; color: var(--text-primary); font-weight: 600; font-size: 0.95rem; }
.form-group input, .form-group textarea {
    width: 100%; padding: 0.9rem;
    border: 2px solid var(--border);
    border-radius: 8px;
    font-size: 1rem;
    background: var(--bg-secondary);
    color: var(--text-primary);
    transition: all var(--transition);
    font-family: inherit;
}
.form-group input:focus, .form-group textarea:focus { outline: none; border-color: var(--accent); background: var(--bg-card); transform: scale(1.01); }
.form-group input.error, .form-group textarea.error { border-color: #e53e3e; }
.form-group textarea { resize: vertical; min-height: 120px; }
.field-error { color: #e53e3e; font-size: 0.82rem; margin-top: 0.3rem; min-height: 1rem; }
.submit-btn {
    background: var(--accent); color: white;
    padding: 1rem 2rem; font-size: 1rem; font-weight: 600;
    border-radius: 50px; width: 100%;
    display: flex; align-items: center; justify-content: center; gap: 0.5rem;
    transition: all var(--transition); margin-top: var(--spacing-sm);
}
.submit-btn:hover:not(:disabled) { background: var(--accent-hover); transform: translateY(-2px); box-shadow: 0 8px 25px var(--shadow-hover); }
.submit-btn:disabled { opacity: 0.7; cursor: not-allowed; }
.form-message { margin-top: var(--spacing-sm); padding: 1rem; border-radius: 8px; text-align: center; display: none; animation: fadeUp 0.3s ease; }
.form-message.success { background: #ffe4f1; color: #c71585; border: 2px solid #ff69b4; display: block; }
.form-message.error   { background: #fff0f0; color: #e53e3e; border: 2px solid #e53e3e; display: block; }
.contact-info { display: flex; flex-direction: column; gap: var(--spacing-sm); }
.info-item {
    background: var(--bg-card);
    padding: 1.5rem;
    border-radius: var(--radius);
    box-shadow: 0 5px 20px var(--shadow);
    display: flex; align-items: center; gap: var(--spacing-sm);
    transition: all var(--transition);
}
.info-item:hover { transform: translateX(8px); box-shadow: 0 8px 30px var(--shadow-hover); }
.info-icon { font-size: 2rem; width: 56px; height: 56px; background: var(--bg-secondary); border-radius: 50%; display: flex; align-items: center; justify-content: center; flex-shrink: 0; }
.info-content h4 { color: var(--accent); margin-bottom: 0.2rem; font-size: 0.9rem; }
.info-content p  { color: var(--text-secondary); font-size: 0.9rem; margin: 0; }

/* =========================
   FOOTER
   ========================= */
.footer { background: var(--bg-primary); padding: var(--spacing-md) 0; border-top: 1px solid var(--border); }
.footer-content { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: var(--spacing-sm); }
.footer-links { display: flex; gap: var(--spacing-md); }
.footer-links a { color: var(--text-secondary); transition: color var(--transition); font-size: 0.9rem; }
.footer-links a:hover { color: var(--accent); }
.visit-timer { font-size: 0.8rem; color: var(--accent); font-weight: 500; }

/* =========================
   CHATBOT
   ========================= */
.chatbot {
    position: fixed;
    bottom: 2rem;
    left: 2rem;
    z-index: 1000;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
}

.chat-bubble {
    width: 56px; height: 56px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--accent), #c71585);
    color: white;
    font-size: 1.4rem;
    border: none;
    cursor: pointer;
    box-shadow: 0 4px 20px var(--shadow-hover);
    position: relative;
    display: flex; align-items: center; justify-content: center;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}
.chat-bubble:hover { transform: scale(1.1); box-shadow: 0 8px 30px var(--shadow-hover); }

.chat-bubble-ping {
    position: absolute;
    top: 2px; right: 2px;
    width: 12px; height: 12px;
    border-radius: 50%;
    background: #22c55e;
    border: 2px solid white;
    animation: ping 1.5s ease-in-out infinite;
}
@keyframes ping {
    0%, 100% { transform: scale(1); opacity: 1; }
    50%       { transform: scale(1.4); opacity: 0.6; }
}

.chat-window {
    background: var(--bg-card);
    border-radius: 18px;
    box-shadow: 0 12px 50px rgba(0,0,0,0.18);
    width: 320px;
    max-height: 480px;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    margin-bottom: 0.75rem;
    border: 1px solid var(--border);
    animation: chatSlideUp 0.25s ease;
}
.chat-window[hidden] { display: none; }
@keyframes chatSlideUp {
    from { opacity: 0; transform: translateY(20px); }
    to   { opacity: 1; transform: translateY(0); }
}

.chat-header {
    background: linear-gradient(135deg, var(--accent), #c71585);
    color: white;
    padding: 0.9rem 1rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
}
.chat-avatar {
    width: 36px; height: 36px;
    background: rgba(255,255,255,0.2);
    border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
    font-size: 1.1rem;
    flex-shrink: 0;
}
.chat-name { font-weight: 600; font-size: 0.95rem; margin: 0; font-family: var(--font-body); }
.chat-status {
    font-size: 0.75rem;
    opacity: 0.85;
    display: flex;
    align-items: center;
    gap: 0.3rem;
    margin: 0;
    font-family: var(--font-body);
}
.chat-dot {
    width: 7px; height: 7px;
    background: #22c55e;
    border-radius: 50%;
    display: inline-block;
}
.chat-close {
    margin-left: auto;
    background: rgba(255,255,255,0.15);
    color: white;
    border: none;
    border-radius: 50%;
    width: 28px; height: 28px;
    cursor: pointer;
    font-size: 0.85rem;
    display: flex; align-items: center; justify-content: center;
    transition: background 0.2s;
    flex-shrink: 0;
}
.chat-close:hover { background: rgba(255,255,255,0.3); }

.chat-messages {
    flex: 1;
    overflow-y: auto;
    padding: 1rem;
    display: flex;
    flex-direction: column;
    gap: 0.6rem;
    scroll-behavior: smooth;
}
.chat-messages::-webkit-scrollbar { width: 4px; }
.chat-messages::-webkit-scrollbar-thumb { background: var(--border); border-radius: 4px; }

.chat-msg {
    max-width: 82%;
    padding: 0.6rem 0.9rem;
    border-radius: 14px;
    font-size: 0.88rem;
    line-height: 1.5;
    font-family: var(--font-body);
    animation: msgPop 0.2s ease;
}
@keyframes msgPop { from { opacity: 0; transform: scale(0.92); } to { opacity: 1; transform: scale(1); } }

.chat-msg.bot {
    background: var(--bg-secondary);
    color: var(--text-primary);
    border-bottom-left-radius: 4px;
    align-self: flex-start;
}
.chat-msg.user {
    background: var(--accent);
    color: white;
    border-bottom-right-radius: 4px;
    align-self: flex-end;
}

.chat-suggestions {
    padding: 0.5rem 0.75rem;
    display: flex;
    flex-wrap: wrap;
    gap: 0.4rem;
    border-top: 1px solid var(--border);
}
.suggestion-chip {
    background: var(--bg-secondary);
    color: var(--accent);
    border: 1px solid var(--border);
    border-radius: 20px;
    padding: 0.3rem 0.7rem;
    font-size: 0.78rem;
    font-family: var(--font-body);
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s;
    white-space: nowrap;
}
.suggestion-chip:hover { background: var(--accent); color: white; border-color: var(--accent); }

.chat-input-row {
    display: flex;
    gap: 0.4rem;
    padding: 0.6rem 0.75rem;
    border-top: 1px solid var(--border);
    background: var(--bg-card);
}
#chatInput {
    flex: 1;
    padding: 0.5rem 0.8rem;
    border: 1.5px solid var(--border);
    border-radius: 50px;
    background: var(--bg-secondary);
    color: var(--text-primary);
    font-size: 0.88rem;
    font-family: var(--font-body);
    outline: none;
    transition: border-color 0.2s;
}
#chatInput:focus { border-color: var(--accent); }
.chat-input-row button {
    background: var(--accent);
    color: white;
    border: none;
    border-radius: 50%;
    width: 34px; height: 34px;
    font-size: 0.9rem;
    cursor: pointer;
    display: flex; align-items: center; justify-content: center;
    transition: background 0.2s;
    flex-shrink: 0;
}
.chat-input-row button:hover { background: var(--accent-hover); }

@media (max-width: 480px) {
    .chatbot { left: 1rem; bottom: 1rem; }
    .chat-window { width: 290px; }
}

/* =========================
   BACK TO TOP
   ========================= */
.back-to-top {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    background: var(--accent);
    color: white;
    border-radius: 50%;
    width: 46px; height: 46px;
    display: flex; align-items: center; justify-content: center;
    font-size: 1.3rem;
    box-shadow: 0 4px 20px var(--shadow-hover);
    transition: all var(--transition);
    opacity: 0;
    pointer-events: none;
    z-index: 999;
}
.back-to-top.visible { opacity: 1; pointer-events: auto; }
.back-to-top:hover { background: var(--accent-hover); transform: translateY(-4px); }

/* =========================
   3D CARD TILT
   ========================= */
.project-card {
    transform-style: preserve-3d;
    will-change: transform;
}

/* =========================
   CONFETTI CANVAS
   ========================= */
#confettiCanvas {
    position: fixed;
    top: 0; left: 0;
    width: 100%; height: 100%;
    pointer-events: none;
    z-index: 9999;
}

/* =========================
   LOADING SPINNER
   ========================= */
@keyframes spin { to { transform: rotate(360deg); } }
.loading-spinner {
    display: inline-block;
    width: 18px; height: 18px;
    border: 2.5px solid rgba(255,255,255,0.3);
    border-top-color: white;
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}
.github-spinner {
    width: 30px; height: 30px;
    border-width: 3px;
    border-color: var(--border);
    border-top-color: var(--accent);
}

/* =========================
   SCROLL REVEAL
   ========================= */
.reveal { opacity: 0; transform: translateY(30px); transition: opacity 0.6s ease, transform 0.6s ease; }
.reveal.visible { opacity: 1; transform: translateY(0); }

/* =========================
   RESPONSIVE
   ========================= */
@media (max-width: 968px) {
    .contact-content { grid-template-columns: 1fr; }
    .contact-info { order: -1; }
    .skills-layout { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
    :root { --spacing-xl: 4rem; --spacing-lg: 3rem; }

    /* Mobile nav */
    .hamburger { display: flex; }
    .nav-menu {
        display: none;
        flex-direction: column;
        position: absolute;
        top: 100%;
        left: 0; right: 0;
        background: var(--bg-card);
        padding: 1rem var(--spacing-md) 1.5rem;
        box-shadow: 0 8px 30px var(--shadow);
        gap: 0.25rem;
        z-index: 999;
        border-top: 1px solid var(--border);
    }
    .nav-menu.open { display: flex; }
    .nav-menu li { width: 100%; }
    .nav-link { display: block; padding: 0.6rem 0; font-size: 1rem; }

    .navbar { position: relative; }
    .navbar .container { flex-wrap: wrap; }

    .tagline { font-size: 2rem; }
    .typing-wrapper { font-size: 1.2rem; }
    .section-title { font-size: 2rem; }
    .projects-grid { grid-template-columns: 1fr; }
    .skills-grid { grid-template-columns: 1fr 1fr; }
    .form-row { grid-template-columns: 1fr; }
    .footer-content { flex-direction: column; text-align: center; }

    /* Timeline collapses to single column on mobile */
    .timeline::before { left: 1rem; }
    .timeline-item { width: 100%; left: 0 !important; text-align: left !important; padding-left: 3rem !important; padding-right: 0 !important; }
    .timeline-dot { left: 0.4rem !important; right: auto !important; }
}

@media (max-width: 600px) {
    .stats-grid { grid-template-columns: repeat(2, 1fr); }
    .stat-number { font-size: 2.2rem; }
}

@media (max-width: 480px) {
    html { font-size: 14px; }
    .tagline { font-size: 1.6rem; }
    .section-title { font-size: 1.8rem; }
    .back-to-top { bottom: 1.2rem; right: 1.2rem; }
}