/* ==========================================================================
   SAIKUMAR GUDELLY — MODERN PORTFOLIO
   Design System: Clean, minimal, high-impact aesthetic
   ========================================================================== */

/* ── COLOR TOKENS ── */
:root {
  --bg: #ffffff;
  --bg-subtle: #f9fafb;
  --bg-card: #f4f4f5;
  --border: #e4e4e7;
  --border-strong: #d4d4d8;
  --text-main: #09090b;
  --text-muted: #71717a;
  --text-sub: #52525b;
  --title-bar-bg: #e4e4e7;
  --title-bar-border: #18181b;
  --accent-blue: #3b82f6;
  --accent-cyan: #06b6d4;
  --dock-bg: rgba(255, 255, 255, 0.88);
  --dock-border: rgba(0, 0, 0, 0.1);
  --dock-shadow: rgba(0, 0, 0, 0.08);

  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --ease: cubic-bezier(0.16, 1, 0.3, 1);
}

[data-theme="dark"],
:root:not([data-theme="light"]) {
  --bg: #000000;
  --bg-subtle: #09090b;
  --bg-card: #121215;
  --border: #27272a;
  --border-strong: #3f3f46;
  --text-main: #ffffff;
  --text-muted: #a1a1aa;
  --text-sub: #d4d4d8;
  --title-bar-bg: #18181b;
  --title-bar-border: #e4e4e7;
  --accent-blue: #60a5fa;
  --accent-cyan: #22d3ee;
  --dock-bg: rgba(18, 18, 22, 0.85);
  --dock-border: rgba(255, 255, 255, 0.12);
  --dock-shadow: rgba(0, 0, 0, 0.5);
}

/* ── RESET & BASE ── */
*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  background-color: var(--bg);
  color: var(--text-main);
  font-family: var(--font-sans);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  transition: background-color 0.3s var(--ease), color 0.3s var(--ease);
}

a {
  color: inherit;
  text-decoration: none;
}

ul {
  list-style: none;
}

/* ── MAIN CONTAINER (MAX-W-4XL WITH BORDER-X) ── */
.portfolio-container {
  width: 92%;
  max-width: 56rem; /* 896px = max-w-4xl */
  margin: 0 auto;
  padding: 48px 16px 120px;
  border-left: 1px solid var(--border);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  gap: 64px;
  min-height: 100vh;
}

@media (max-width: 640px) {
  .portfolio-container {
    width: 100%;
    padding: 32px 16px 100px;
    border-left: none;
    border-right: none;
    gap: 48px;
  }
}

/* ── HERO / ABOUT SECTION ── */
.hero-section {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.status-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  border-radius: 9999px;
  border: 1px solid var(--border);
  background: var(--bg-card);
  color: var(--text-sub);
  font-size: 0.78rem;
  font-weight: 500;
  width: fit-content;
}

.status-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background-color: #22c55e;
  box-shadow: 0 0 8px rgba(34, 197, 94, 0.7);
  animation: pulse-green 2s infinite ease-in-out;
}

@keyframes pulse-green {
  0% { transform: scale(1); opacity: 1; }
  50% { transform: scale(1.3); opacity: 0.6; }
  100% { transform: scale(1); opacity: 1; }
}

.hero-main-row {
  display: flex;
  flex-direction: row;
  flex-wrap: wrap-reverse;
  justify-content: space-between;
  align-items: center;
  gap: 20px;
}

.hero-intro {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}

.hero-iam {
  font-size: clamp(1.8rem, 4vw, 2.5rem);
  font-weight: 800;
  color: var(--text-main);
  letter-spacing: -0.02em;
}

.hero-avatar {
  width: 52px;
  height: 52px;
  border-radius: 12px;
  object-fit: cover;
  transform: rotate(-6deg);
  border: 2px solid var(--border-strong);
  box-shadow: 0 6px 16px -2px rgba(0, 0, 0, 0.3);
  transition: transform 0.3s var(--ease);
}

.hero-avatar:hover {
  transform: rotate(0deg) scale(1.08);
}

.hero-name-gradient {
  font-size: clamp(1.8rem, 4vw, 2.5rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  background: linear-gradient(135deg, #60a5fa 0%, #38bdf8 50%, #22d3ee 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  display: inline-block;
}

.hero-controls {
  display: flex;
  align-items: center;
  gap: 10px;
}

.icon-control-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--bg-card);
  color: var(--text-main);
  cursor: pointer;
  transition: all 0.2s var(--ease);
}

.icon-control-btn:hover {
  border-color: var(--border-strong);
  transform: translateY(-1px);
}

.hero-bio {
  font-size: 0.95rem;
  color: var(--text-muted);
  line-height: 1.75;
  max-width: 48rem;
}

.hero-bio strong {
  color: var(--text-main);
  font-weight: 600;
}

.hero-actions-row {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  padding-top: 8px;
}

.hero-cta-buttons {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

.btn-work {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 9px 18px;
  border-radius: 10px;
  background: #2563eb;
  color: #ffffff;
  font-size: 0.88rem;
  font-weight: 600;
  transition: all 0.2s var(--ease);
}

.btn-work:hover {
  background: #1d4ed8;
  transform: translateY(-1px);
}

.btn-resume {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 9px 18px;
  border-radius: 10px;
  background: var(--bg-card);
  color: var(--text-main);
  border: 1px solid var(--border);
  font-size: 0.88rem;
  font-weight: 600;
  transition: all 0.2s var(--ease);
}

.btn-resume:hover {
  border-color: var(--border-strong);
  transform: translateY(-1px);
}

.hero-social-links {
  display: flex;
  align-items: center;
  gap: 10px;
}

.social-pill-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 8px;
  border-radius: 8px;
  background: var(--bg-card);
  color: var(--text-main);
  border: 1px solid var(--border);
  transition: all 0.2s var(--ease);
}

.social-pill-btn svg {
  width: 16px;
  height: 16px;
}

.social-pill-btn:hover {
  border-color: var(--accent-blue);
  color: var(--accent-blue);
  transform: translateY(-2px);
}

/* ── SIGNATURE SECTION TITLE BAR (ANKIT STYLE) ── */
.section-title-bar {
  font-size: 1.35rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  padding: 8px 14px;
  border-left: 8px solid var(--title-bar-border);
  background: var(--title-bar-bg);
  color: var(--text-main);
  border-radius: 0 6px 6px 0;
  margin-bottom: 24px;
}

/* ── EXPERIENCE SECTION (COLLAPSIBLE DROPDOWNS) ── */
.experience-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
  padding: 0 4px;
}

.exp-card {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  width: 100%;
  padding: 16px;
  border-radius: 14px;
  border: 1px solid var(--border);
  background: var(--bg-card);
  transition: border-color 0.2s var(--ease), box-shadow 0.2s var(--ease);
}

.exp-card:hover {
  border-color: var(--border-strong);
}

.exp-icon-box {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: var(--bg);
  color: var(--text-main);
  flex-shrink: 0;
}

.exp-icon-box svg {
  width: 20px;
  height: 20px;
}

.exp-main {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
}

.exp-toggle-btn {
  background: none;
  border: none;
  padding: 0;
  width: 100%;
  text-align: left;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  gap: 6px;
  color: inherit;
  font-family: inherit;
}

@media (min-width: 640px) {
  .exp-toggle-btn {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
  }
}

.exp-header-info {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.exp-company-row {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

.exp-company {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text-main);
}

.exp-client-badge {
  font-size: 0.72rem;
  font-weight: 500;
  padding: 2px 8px;
  border-radius: 6px;
  background: var(--bg);
  border: 1px solid var(--border);
  color: var(--text-muted);
}

.exp-chevron {
  color: var(--text-muted);
  transition: transform 0.25s var(--ease), color 0.2s;
  flex-shrink: 0;
}

.exp-card.open .exp-chevron {
  transform: rotate(90deg);
  color: #16a34a;
}

.exp-role {
  font-size: 0.88rem;
  color: var(--text-muted);
  font-weight: 500;
}

.exp-date-box {
  display: flex;
  align-items: center;
}

.exp-date {
  font-size: 0.82rem;
  font-weight: 600;
  color: #16a34a; /* Green date like Ankit */
}

/* Collapsible Content Area */
.exp-collapse-body {
  display: grid;
  grid-template-rows: 0fr;
  opacity: 0;
  transition: grid-template-rows 0.3s var(--ease), opacity 0.25s ease, margin 0.2s ease;
  overflow: hidden;
}

.exp-card.open .exp-collapse-body {
  grid-template-rows: 1fr;
  opacity: 1;
  margin-top: 14px;
  padding-top: 12px;
  border-top: 1px dashed var(--border);
}

.exp-collapse-inner {
  min-height: 0;
  overflow: hidden;
}

.exp-bullets {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.exp-bullets li {
  font-size: 0.88rem;
  color: var(--text-muted);
  line-height: 1.6;
  padding-left: 14px;
  position: relative;
}

.exp-bullets li::before {
  content: '•';
  position: absolute;
  left: 0;
  color: #16a34a;
  font-weight: bold;
}

/* ── PROJECTS SECTION (CLEAN CARDS WITH ALIGNED TECH STACK) ── */
.projects-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
  padding: 0 4px;
}

@media (min-width: 768px) {
  .projects-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

.project-card {
  display: flex;
  flex-direction: column;
  padding: 20px;
  border-radius: 16px;
  border: 1px solid var(--border);
  background: var(--bg-card);
  transition: all 0.25s var(--ease);
  position: relative;
  gap: 14px;
}

.project-card:hover {
  border-color: var(--border-strong);
  transform: translateY(-3px);
  box-shadow: 0 12px 30px -8px rgba(0, 0, 0, 0.2);
}

.project-card-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
}

.project-card-title-group {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

.project-name {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--text-main);
}

.project-category-tag {
  font-size: 0.72rem;
  padding: 2px 8px;
  border-radius: 6px;
  background: var(--bg);
  border: 1px solid var(--border);
  color: var(--text-muted);
  font-weight: 500;
}

.project-badge-contributed {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 0.7rem;
  font-weight: 600;
  padding: 2px 7px;
  border-radius: 6px;
  background: rgba(34, 197, 94, 0.12);
  color: #16a34a;
  border: 1px solid rgba(34, 197, 94, 0.28);
  letter-spacing: 0.01em;
}

[data-theme="dark"] .project-badge-contributed {
  background: rgba(34, 197, 94, 0.14);
  color: #4ade80;
  border-color: rgba(34, 197, 94, 0.32);
}

.project-meta-row {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.78rem;
  color: var(--text-muted);
  margin-top: -4px;
  margin-bottom: 8px;
}

.project-meta-row strong {
  color: var(--text-main);
  font-weight: 600;
}

.project-meta-separator {
  opacity: 0.35;
}

.project-link-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  border-radius: 8px;
  background: var(--bg);
  border: 1px solid var(--border);
  color: var(--text-main);
  transition: all 0.2s var(--ease);
  flex-shrink: 0;
}

.project-link-btn:hover {
  border-color: var(--accent-blue);
  color: var(--accent-blue);
  transform: scale(1.1);
}

.project-desc {
  font-size: 0.88rem;
  color: var(--text-muted);
  line-height: 1.6;
  flex-grow: 1;
}

/* Aligned Tech Stack Badges */
.project-tech-stack {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
  padding-top: 14px;
  border-top: 1px solid var(--border);
  margin-top: auto;
}

.tech-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  border-radius: 8px;
  background: var(--bg);
  border: 1px solid var(--border);
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--text-sub);
  transition: border-color 0.2s, color 0.2s;
}

.tech-pill svg {
  width: 14px;
  height: 14px;
  flex-shrink: 0;
}

.tech-pill:hover {
  border-color: var(--border-strong);
  color: var(--text-main);
}

/* Projects Expandable Container & See More Button */
.projects-more-container {
  display: grid;
  grid-template-rows: 0fr;
  opacity: 0;
  transition: grid-template-rows 0.35s cubic-bezier(0.16, 1, 0.3, 1), opacity 0.3s ease, margin 0.25s ease;
  overflow: hidden;
}

.projects-more-container.expanded {
  grid-template-rows: 1fr;
  opacity: 1;
  margin-top: 20px;
}

.projects-more-inner {
  min-height: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
}

@media (min-width: 768px) {
  .projects-more-inner {
    grid-template-columns: repeat(2, 1fr);
  }
}

.projects-actions-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  margin-top: 20px;
  padding: 0 4px;
}

.btn-see-more {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 18px;
  border-radius: 10px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  color: var(--text-main);
  font-size: 0.84rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s var(--ease);
}

.btn-see-more:hover {
  border-color: var(--border-strong);
  transform: translateY(-1px);
}

.btn-see-more svg {
  transition: transform 0.3s var(--ease);
}

.btn-see-more.expanded svg {
  transform: rotate(180deg);
}

.btn-all-repos {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.84rem;
  color: var(--accent-blue);
  font-weight: 600;
  transition: all 0.2s;
}

.btn-all-repos:hover {
  text-decoration: underline;
  transform: translateX(2px);
}

/* ── SKILLS SECTION (AUTHENTIC OFFICIAL ICONS + ANKIT HOVER EFFECT) ── */
.skills-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
  padding: 0 4px;
}

@media (min-width: 480px) {
  .skills-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (min-width: 768px) {
  .skills-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

@media (min-width: 896px) {
  .skills-grid {
    grid-template-columns: repeat(6, 1fr);
  }
}

.skill-chip {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 14px;
  border-radius: 10px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  color: var(--text-main);
  font-size: 0.82rem;
  font-weight: 500;
  cursor: default;
  transition: all 0.2s var(--ease);
}

.skill-icon {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
  transition: transform 0.25s var(--ease);
}

.skill-chip:hover {
  border-color: var(--border-strong);
  transform: translateY(-2px);
}

.skill-chip:hover .skill-icon {
  transform: translateX(-4px);
}

/* ── GITHUB CONTRIBUTION STATS SECTION ── */
.github-stats-container {
  display: flex;
  flex-direction: column;
  gap: 16px;
  padding: 0 4px;
}

.github-graph-card {
  padding: 18px;
  border-radius: 14px;
  border: 1px solid var(--border);
  background: var(--bg-card);
  display: flex;
  flex-direction: column;
  gap: 12px;
  overflow-x: auto;
}

.github-graph-img {
  width: 100%;
  min-width: 600px;
  height: auto;
  display: block;
}

/* ── FLOATING BOTTOM BLUR OVERLAY & DOCK (4 ITEMS ONLY) ── */
.dock-backdrop-blur {
  pointer-events: none;
  position: fixed;
  inset-inline: 0;
  bottom: 0;
  height: 80px;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  background: linear-gradient(to top, var(--bg) 60%, transparent);
  mask-image: linear-gradient(to bottom, transparent, black);
  -webkit-mask-image: linear-gradient(to bottom, transparent, black);
  z-index: 40;
}

.bottom-dock {
  position: fixed;
  bottom: 16px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 50;
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 5px 8px;
  border-radius: 18px;
  background: var(--dock-bg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--dock-border);
  box-shadow: 0 10px 30px var(--dock-shadow);
}

.dock-btn {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 8px 14px;
  border-radius: 14px;
  color: var(--text-muted);
  font-size: 0.8rem;
  font-weight: 500;
  transition: all 0.2s var(--ease);
  text-decoration: none;
}

.dock-btn svg {
  width: 18px;
  height: 18px;
}

.dock-btn:hover {
  color: var(--text-main);
  background: var(--bg-card);
}

.dock-btn.active {
  color: var(--text-main);
  background: var(--bg-card);
  font-weight: 600;
}

@media (max-width: 480px) {
  .dock-btn {
    padding: 8px 10px;
  }
  .dock-btn span {
    display: none;
  }
}