html, body {
  width: 100%;
  overflow-x: hidden;
}

* {
  box-sizing: border-box;
}

menu-btn {
  position: fixed;
  top: 20px;
  right: 20px;
  /* 👈 moved to right */
  left: auto;
  font-size: 24px;
  background: #0f172a;
  color: white;
  border: none;
  padding: 10px 15px;
  cursor: pointer;
  z-index: 1001;
}

/* Sidebar */
.sidebar {
  position: fixed;
  top: 0;
  right: 0;
  /* 👈 RIGHT SIDE */
  width: 250px;
  height: 100vh;
  background-color: #020617;
  transform: translateX(100%);
  /* hidden to the RIGHT */
  transition: transform 0.3s ease;
  padding-top: 60px;
  z-index: 1000;
}

.sidebar.open {
  transform: translateX(0);
  /* slide in from RIGHT */
}

/* Sidebar links */
.sidebar a {
  padding: 12px 25px;
  text-decoration: none;
  font-size: 18px;
  color: #e5e7eb;
  display: block;
}

.sidebar a:hover {
  background-color: #1e293b;
  color: #38bdf8;
}

/* Close button */
.close-btn {
  position: absolute;
  top: 15px;
  right: 20px;
  font-size: 30px;
}

.lectures-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 25px;
  margin-top: 20px;
}

.lecture-card {
  background: white;
  border-radius: 10px;
  overflow: hidden;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
  transition: transform 0.3s ease;
}

.lecture-card:hover {
  transform: translateY(-5px);
}

.lecture-card iframe {
  width: 100%;
  height: 180px;
  border: none;
}

.lecture-desc {
  padding: 10px;
  font-size: 14px;
  text-align: center;
}

h3 {
  margin-top: 40px;
  margin-bottom: 10px;
  font-size: 20px;
}

section {
  max-width: 1200px;
  margin: auto;
  padding: 20px;
}


.explore-box {
  margin: 40px auto;
  text-align: center;
}

.explore-box h2 {
  display: inline-block;
  /* key change */
  background-color: #0d6efd;
  color: #ffffff;
  font-size: 22px;
  font-weight: 600;
  padding: 12px 24px;
  border-radius: 6px;
  margin: 0;
}

/* ===== MODERN PROJECT IDEA BOX - BALANCED ===== */

.project-idea-box {
  max-width: 900px;
  margin: 40px auto;
  padding: 28px 32px;

  background: rgba(255, 255, 255, 0.88);
  border-radius: 14px;

  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.12);

  line-height: 1.7;

  /* ADD THIS */
  transition: all 0.3s ease;
}

.project-idea-box:hover {
  transform: translateY(-8px);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.18);
}

/* heading inside project box */
.project-idea-box h2,
.project-idea-box h3 {
  margin-bottom: 14px;
  color: #0f172a;
  font-weight: 700;
}

/* main list spacing */
.project-idea-box ul {
  padding-left: 20px;
  margin-top: 8px;
}

/* each project title (li) */
.project-idea-box > ul > li {
  margin-bottom: 18px;
  font-weight: 600;
  color: #1e293b;
}

/* sub points */
.project-idea-box ul ul {
  margin-top: 6px;
}

.project-idea-box ul ul li {
  font-weight: 400;
  color: #334155;
}
/* main heading */
.sources h2,
.sources h3 {
  color: #0f172a;
  margin-bottom: 12px;
}

.sources>ul>li,
.sources h4 {
  font-weight: 700;
}

/* remove ugly default spacing */
.sources ul {
  padding-left: 18px;
  margin-top: 10px;
}

/* channel blocks */
.sources li {
  margin-bottom: 14px;
  line-height: 1.6;
}

/* channel name link */
.sources a {
  font-weight: 600;
  color: #2563eb;
  text-decoration: none;
}

.sources a:hover {
  text-decoration: underline;
}

/* main page heading */
h1 {
  max-width: 900px;
  margin: 60px auto 10px auto;

  font-size: 2.2rem;
  font-weight: 800;
  letter-spacing: .5px;
  color: #0f172a;
}

/* the info paragraph just below the heading */
h1+p {
  max-width: 900px;
  margin: 0 auto 40px auto;

  background: rgba(255, 255, 255, 0.85);
  padding: 18px 22px;

  border-radius: 10px;

  line-height: 1.7;
  font-size: 1rem;
  color: #334155;
}

h2 {
  max-width: 900px;
  margin: 10px auto 20px auto;

  font-size: 1.3rem;
  font-weight: 700;
  color: #0f172a;
}

#mainheading {
  text-align: center;
}

#mainheading h1 {
  display: inline-block;
  padding: 18px 40px;

  font-size: 2.6rem;
  font-weight: 800;
  letter-spacing: 1.5px;
  text-transform: uppercase;

  color: #0f172a;


  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(6px);

  border-radius: 14px;

  box-shadow:
    0 10px 30px rgba(0, 0, 0, 0.12);

  border-left: 6px solid #2563eb;

  position: relative;
}


#mainheading h1::after {
  content: "";
  display: block;
  width: 60%;
  height: 4px;
  background: linear-gradient(to right, #2563eb, #38bdf8);
  margin: 40px auto 20px auto;
  border-radius: 10px;
}


#frontend {
  max-width: 1100px;
  margin: 60px auto 30px;
  padding: 35px 30px;

  background: rgba(255, 255, 255, 0.80);
  backdrop-filter: blur(6px);

  border-radius: 20px;
  box-shadow: 0 15px 35px rgba(0, 0, 0, 0.12);
}


#frontend h2 {
  text-align: center;
  font-size: 2.2rem;
  font-weight: 800;
  margin-bottom: 10px;
  color: #0f172a;
}


#frontend hr {
  width: 80px;
  height: 4px;
  border: none;
  margin: 10px auto 25px;
  border-radius: 10px;
  background: linear-gradient(to right, #2563eb, #38bdf8);
}

/* description */
#frontend p {
  font-size: 1rem;
  line-height: 1.7;
  color: #334155;
}

/* skills label */
#frontend p b {
  color: #0f172a;
}

/* skills list */
#frontend ul {
  margin-top: 10px;
  padding-left: 20px;
}

#frontend li {
  margin-bottom: 6px;
}

.notes {
  display: flex;
  justify-content: center;
  align-items: center;
  padding: 100px 20px;
}

.notes-box {
  width: 75%;
  max-width: 950px;
  padding: 60px 40px;
  border-radius: 25px;

  background: rgba(255, 255, 255, 0.80);

  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.2);
  text-align: center;

  transition: 0.4s ease;
}

.notes-box:hover {
  transform: translateY(-10px);
}

.notes-box h2 {
  font-size: 38px;
  font-weight: 700;
  margin-bottom: 50px;
  letter-spacing: 1px;
  color: #1a1a1a;
}

.note-item {
  margin-bottom: 40px;
}

.note-item h3 {
  font-size: 22px;
  margin-bottom: 18px;
  color: #333;
  font-weight: 600;
}

/* Premium Button Design */
.note-item a {
  display: inline-block;
  padding: 12px 28px;
  border-radius: 30px;

  background: linear-gradient(135deg, #1e3c72, #2a5298);
  color: white;
  font-size: 15px;
  font-weight: 500;

  text-decoration: none;
  transition: 0.4s ease;

  box-shadow: 0 8px 20px rgba(30, 60, 114, 0.4);
}

.note-item a:hover {
  transform: translateY(-5px);
  box-shadow: 0 12px 30px rgba(30, 60, 114, 0.6);
}

/* backend */
#backend {
  max-width: 1100px;
  margin: 60px auto 30px;
  padding: 35px 30px;

  background: rgba(255, 255, 255, 0.80);
  backdrop-filter: blur(6px);

  border-radius: 20px;
  box-shadow: 0 15px 35px rgba(0, 0, 0, 0.12);
}

/* section heading */
#backend h2 {
  text-align: center;
  font-size: 2.2rem;
  font-weight: 800;
  margin-bottom: 10px;
  color: #0f172a;
}

/* thin separator */
#backend hr {
  width: 80px;
  height: 4px;
  border: none;
  margin: 10px auto 25px;
  border-radius: 10px;
  background: linear-gradient(to right, #2563eb, #38bdf8);
}

/* description */
#backend p {
  font-size: 1rem;
  line-height: 1.7;
  color: #334155;
}

/* skills label */
#backend p b {
  color: #0f172a;
}

/* skills list */
#backend ul {
  margin-top: 10px;
  padding-left: 20px;
}

#backend li {
  margin-bottom: 6px;
}

#fullstack {
  max-width: 1100px;
  margin: 60px auto 30px;
  padding: 35px 30px;

  background: rgba(255, 255, 255, 0.80);
  backdrop-filter: blur(6px);

  border-radius: 20px;
  box-shadow: 0 15px 35px rgba(0, 0, 0, 0.12);
}

/* section heading */
#fullstack h2 {
  text-align: center;
  font-size: 2.2rem;
  font-weight: 800;
  margin-bottom: 10px;
  color: #0f172a;
}

/* thin separator */
#fullstack hr {
  width: 80px;
  height: 4px;
  border: none;
  margin: 10px auto 25px;
  border-radius: 10px;
  background: linear-gradient(to right, #2563eb, #38bdf8);
}

/* description */
#fullstack p {
  font-size: 1rem;
  line-height: 1.7;
  color: #334155;
}

/* skills label */
#fullstack p b {
  color: #0f172a;
}

/* skills list */
#fullstack ul {
  margin-top: 10px;
  padding-left: 20px;
}

#fullstack li {
  margin-bottom: 6px;
}

#SoftwareDevelopement {
  max-width: 1100px;
  margin: 60px auto 30px;
  padding: 35px 30px;

  background: rgba(255, 255, 255, 0.80);
  backdrop-filter: blur(6px);

  border-radius: 20px;
  box-shadow: 0 15px 35px rgba(0, 0, 0, 0.12);
}

/* section heading */
#SoftwareDevelopement h2 {
  text-align: center;
  font-size: 2.2rem;
  font-weight: 800;
  margin-bottom: 10px;
  color: #0f172a;
}

/* thin separator */
#SoftwareDevelopement hr {
  width: 80px;
  height: 4px;
  border: none;
  margin: 10px auto 25px;
  border-radius: 10px;
  background: linear-gradient(to right, #2563eb, #38bdf8);
}

/* description */
#SoftwareDevelopement p {
  font-size: 1rem;
  line-height: 1.7;
  color: #334155;
}

/* skills label */
#SoftwareDevelopement p b {
  color: #0f172a;
}

/* skills list */
#SoftwareDevelopement ul {
  margin-top: 10px;
  padding-left: 20px;
}

#SoftwareDevelopement li {
  margin-bottom: 6px;
}


#AI {
  max-width: 1100px;
  margin: 60px auto 30px;
  padding: 35px 30px;

  background: rgba(255, 255, 255, 0.80);
  backdrop-filter: blur(6px);

  border-radius: 20px;
  box-shadow: 0 15px 35px rgba(0, 0, 0, 0.12);
}

/* section heading */
#AI h2 {
  text-align: center;
  font-size: 2.2rem;
  font-weight: 800;
  margin-bottom: 10px;
  color: #0f172a;
}

/* thin separator */
#AI hr {
  width: 80px;
  height: 4px;
  border: none;
  margin: 10px auto 25px;
  border-radius: 10px;
  background: linear-gradient(to right, #2563eb, #38bdf8);
}

/* description */
#AI p {
  font-size: 1rem;
  line-height: 1.7;
  color: #334155;
}

/* skills label */
#AI p b {
  color: #0f172a;
}

/* skills list */
#AI ul {
  margin-top: 10px;
  padding-left: 20px;
}

#AI li {
  margin-bottom: 6px;
}

.menu-btn {
  position: fixed;
  top: 20px;
  right: 20px;
  /* 👈 moved to right */
  left: auto;
  font-size: 24px;
  background: #0f172a;
  color: white;
  border: none;
  padding: 10px 15px;
  cursor: pointer;
  z-index: 1001;
}

/* Sidebar */
.sidebar {
  position: fixed;
  top: 0;
  right: 0;
  width: 250px;
  height: 100vh;
  background-color: #020617;
  transform: translateX(100%);
  /* hidden to the RIGHT */
  transition: transform 0.3s ease;
  padding-top: 60px;
  z-index: 1000;
}

.sidebar.open {
  transform: translateX(0);
  /* slide in from RIGHT */
}

/* Sidebar links */
.sidebar a {
  padding: 12px 25px;
  text-decoration: none;
  font-size: 18px;
  color: #e5e7eb;
  display: block;
}

.sidebar a:hover {
  background-color: #1e293b;
  color: #38bdf8;
}

/* Close button */
.close-btn {
  position: absolute;
  top: 15px;
  right: 20px;
  font-size: 30px;
}

.lectures-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 25px;
  margin-top: 20px;
}

.lecture-card {
  background: white;
  border-radius: 10px;
  overflow: hidden;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
  transition: transform 0.3s ease;
}

.lecture-card:hover {
  transform: translateY(-5px);
}

.lecture-card iframe {
  width: 100%;
  height: 180px;
  border: none;
}

.lecture-desc {
  padding: 10px;
  font-size: 14px;
  text-align: center;
}

h3 {
  margin-top: 40px;
  margin-bottom: 10px;
  font-size: 20px;
}

section {
  max-width: 1200px;
  margin: auto;
  padding: 20px;
}


.explore-box {
  margin: 40px auto;
  text-align: center;
}

.explore-box h2 {
  display: inline-block;
  /* key change */
  background-color: #0d6efd;
  color: #ffffff;
  font-size: 22px;
  font-weight: 600;
  padding: 12px 24px;
  border-radius: 6px;
  margin: 0;
}

.project-idea-box {
  max-width: 900px;
  margin: 40px auto;
  padding: 28px 32px;

  background: rgba(255, 255, 255, 0.88);
  border-radius: 14px;

  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.12);

  line-height: 1.7;
}

/* heading inside project box */
.project-idea-box h2,
.project-idea-box h3 {
  margin-bottom: 14px;
  color: #0f172a;
  font-weight: 700;
}

/* main list spacing */
.project-idea-box ul {
  padding-left: 20px;
  margin-top: 8px;
}

/* each project title (li) */
.project-idea-box>ul>li {
  margin-bottom: 18px;
  font-weight: 600;
  color: #1e293b;
}

/* sub points */
.project-idea-box ul ul {
  margin-top: 6px;
}

.project-idea-box ul ul li {
  font-weight: 400;
  color: #334155;
}

.sources {
  max-width: 1100px;
  /* 👈 SAME as main sections */
  width: 95%;
  margin: 30px auto;
  padding: 18px 28px;

  background: linear-gradient(135deg, #ffffff, #f0f9ff);
  border-radius: 16px;

  box-shadow: 0 10px 25px rgba(15, 23, 42, 0.10);

}

/* heading */
.sources h3 {
  font-size: 22px;
  font-weight: 800;
  color: #0f172a;
  margin-bottom: 12px;
  text-align: center;
}

.sources h3::after {
  content: "";
  display: block;
  width: 120px;
  height: 3px;
  background: linear-gradient(to right, #2563eb, #38bdf8);
  margin: 9px auto 0;
  border-radius: 10px;
}

/* list */
.sources li {
  margin: 6px 0 2px;
  font-size: 16px;
  color: #1e293b;
}

/* links */
.sources a {
  color: #2563eb;
  font-weight: 700;
  font-size: 16px;
  text-decoration: none;
}

.sources a:hover {
  color: #38bdf8;
  text-decoration: underline;
}

/* description */
.sources b {
  display: block;
  margin: 2px 0 6px;
  padding: 5px 10px;

  background: rgba(255, 255, 255, 0.75);
  border-radius: 8px;

  font-size: 14.5px;
  color: #475569;
  line-height: 1.45;
}

/* main page heading */
h1 {
  max-width: 900px;
  margin: 60px auto 10px auto;

  font-size: 2.2rem;
  font-weight: 800;
  letter-spacing: .5px;
  color: #0f172a;
}

/* the info paragraph just below the heading */
h1+p {
  max-width: 900px;
  margin: 0 auto 40px auto;

  background: rgba(255, 255, 255, 0.85);
  padding: 18px 22px;

  border-radius: 10px;

  line-height: 1.7;
  font-size: 1rem;
  color: #334155;
}

h2 {
  max-width: 900px;
  margin: 10px auto 20px auto;

  font-size: 1.3rem;
  font-weight: 700;
  color: #0f172a;
}

#mainheading {
  text-align: center;
}

#mainheading h1 {
  display: inline-block;
  padding: 18px 40px;

  font-size: 2.6rem;
  font-weight: 800;
  letter-spacing: 1.5px;
  text-transform: uppercase;

  color: #0f172a;

  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(6px);

  border-radius: 14px;

  box-shadow:
    0 10px 30px rgba(0, 0, 0, 0.12);

  border-left: 6px solid #2563eb;

  position: relative;
}

/* small accent line under heading */
#mainheading h1::after {
  content: "";
  display: block;
  width: 60%;
  height: 4px;
  background: linear-gradient(to right, #2563eb, #38bdf8);
  margin: 40px auto 20px auto;
  border-radius: 10px;
}

/* whole frontend section */
#frontend {
  max-width: 1100px;
  margin: 60px auto 30px;
  padding: 35px 30px;

  background: rgba(255, 255, 255, 0.80);
  backdrop-filter: blur(6px);

  border-radius: 20px;
  box-shadow: 0 15px 35px rgba(0, 0, 0, 0.12);
}

/* section heading */
#frontend h2 {
  text-align: center;
  font-size: 2.2rem;
  font-weight: 800;
  margin-bottom: 10px;
  color: #0f172a;
}

/* thin separator */
#frontend hr {
  width: 80px;
  height: 4px;
  border: none;
  margin: 10px auto 25px;
  border-radius: 10px;
  background: linear-gradient(to right, #2563eb, #38bdf8);
}

/* description */
#frontend p {
  font-size: 1rem;
  line-height: 1.7;
  color: #334155;
}

/* skills label */
#frontend p b {
  color: #0f172a;
}

/* skills list */
#frontend ul {
  margin-top: 10px;
  padding-left: 20px;
}

#frontend li {
  margin-bottom: 6px;
}

.notes {
  display: flex;
  justify-content: center;
  align-items: center;
  padding: 100px 20px;
}

/* outer box */
.notes-box {
  background: linear-gradient(135deg, #ffffff, #f0f9ff);
  border-radius: 25px;
  padding: 60px 40px;

  box-shadow: 0 25px 60px rgba(0, 0, 0, 0.15);
  transition: 0.4s ease;
}

.notes-box:hover {
  transform: translateY(-6px);
}

/* heading */
.notes-box h2 {
  font-size: 38px;
  font-weight: 800;
  margin-bottom: 45px;
  color: #0f172a;
  letter-spacing: 1px;
}

/* each note item */
.note-item {
  background: #ffffff;
  padding: 22px 20px;
  margin-bottom: 25px;

  border-radius: 14px;

  display: flex;
  justify-content: space-between;
  align-items: center;

  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.08);

  transition: 0.3s ease;
  border-left: 5px solid #2563eb;
}

/* hover effect */
.note-item:hover {
  transform: translateX(6px);
  box-shadow: 0 18px 40px rgba(37, 99, 235, 0.2);
}

/* title */
.note-item h3 {
  font-size: 18px;
  color: #0f172a;
  margin: 0;
}

/* button */
.note-item a {
  padding: 10px 22px;
  border-radius: 25px;

  background: linear-gradient(135deg, #2563eb, #38bdf8);
  color: white;
  font-size: 14px;
  font-weight: 600;

  text-decoration: none;
  transition: 0.3s ease;

  box-shadow: 0 6px 15px rgba(37, 99, 235, 0.3);
}

/* hover button */
.note-item a:hover {
  transform: scale(1.05);
  box-shadow: 0 12px 30px rgba(37, 99, 235, 0.5);
}

/* backend */
#backend {
  max-width: 1100px;
  margin: 60px auto 30px;
  padding: 35px 30px;

  background: rgba(255, 255, 255, 0.80);
  backdrop-filter: blur(6px);

  border-radius: 20px;
  box-shadow: 0 15px 35px rgba(0, 0, 0, 0.12);
}

/* section heading */
#backend h2 {
  text-align: center;
  font-size: 2.2rem;
  font-weight: 800;
  margin-bottom: 10px;
  color: #0f172a;
}

/* thin separator */
#backend hr {
  width: 80px;
  height: 4px;
  border: none;
  margin: 10px auto 25px;
  border-radius: 10px;
  background: linear-gradient(to right, #2563eb, #38bdf8);
}

/* description */
#backend p {
  font-size: 1rem;
  line-height: 1.7;
  color: #334155;
}

/* skills label */
#backend p b {
  color: #0f172a;
}

/* skills list */
#backend ul {
  margin-top: 10px;
  padding-left: 20px;
}

#backend li {
  margin-bottom: 6px;
}

#fullstack {
  max-width: 1100px;
  margin: 60px auto 30px;
  padding: 35px 30px;

  background: rgba(255, 255, 255, 0.80);
  backdrop-filter: blur(6px);

  border-radius: 20px;
  box-shadow: 0 15px 35px rgba(0, 0, 0, 0.12);
}

/* section heading */
#fullstack h2 {
  text-align: center;
  font-size: 2.2rem;
  font-weight: 800;
  margin-bottom: 10px;
  color: #0f172a;
}

/* thin separator */
#fullstack hr {
  width: 80px;
  height: 4px;
  border: none;
  margin: 10px auto 25px;
  border-radius: 10px;
  background: linear-gradient(to right, #2563eb, #38bdf8);
}

/* description */
#fullstack p {
  font-size: 1rem;
  line-height: 1.7;
  color: #334155;
}

/* skills label */
#fullstack p b {
  color: #0f172a;
}

/* skills list */
#fullstack ul {
  margin-top: 10px;
  padding-left: 20px;
}

#fullstack li {
  margin-bottom: 6px;
}

#SoftwareDevelopement {
  max-width: 1100px;
  margin: 60px auto 30px;
  padding: 35px 30px;

  background: rgba(255, 255, 255, 0.80);
  backdrop-filter: blur(6px);

  border-radius: 20px;
  box-shadow: 0 15px 35px rgba(0, 0, 0, 0.12);
}

/* section heading */
#SoftwareDevelopement h2 {
  text-align: center;
  font-size: 2.2rem;
  font-weight: 800;
  margin-bottom: 10px;
  color: #0f172a;
}

/* thin separator */
#SoftwareDevelopement hr {
  width: 80px;
  height: 4px;
  border: none;
  margin: 10px auto 25px;
  border-radius: 10px;
  background: linear-gradient(to right, #2563eb, #38bdf8);
}

/* description */
#SoftwareDevelopement p {
  font-size: 1rem;
  line-height: 1.7;
  color: #334155;
}

/* skills label */
#SoftwareDevelopement p b {
  color: #0f172a;
}

/* skills list */
#SoftwareDevelopement ul {
  margin-top: 10px;
  padding-left: 20px;
}

#SoftwareDevelopement li {
  margin-bottom: 6px;
}


#AI {
  max-width: 1100px;
  margin: 60px auto 30px;
  padding: 35px 30px;

  background: rgba(255, 255, 255, 0.80);
  backdrop-filter: blur(6px);

  border-radius: 20px;
  box-shadow: 0 15px 35px rgba(0, 0, 0, 0.12);
}

/* section heading */
#AI h2 {
  text-align: center;
  font-size: 2.2rem;
  font-weight: 800;
  margin-bottom: 10px;
  color: #0f172a;
}

/* thin separator */
#AI hr {
  width: 80px;
  height: 4px;
  border: none;
  margin: 10px auto 25px;
  border-radius: 10px;
  background: linear-gradient(to right, #2563eb, #38bdf8);
}


#AI p {
  font-size: 1rem;
  line-height: 1.7;
  color: #334155;
}


#AI p b {
  color: #0f172a;
}


#AI ul {
  margin-top: 10px;
  padding-left: 20px;
}

#AI li {
  margin-bottom: 6px;
}

/* ================= AI PRACTICE SECTION ================= */

.ai-practice {
  max-width: 1100px;
  margin: 60px auto;
  padding: 35px 30px;

  background: rgba(255, 255, 255, 0.80);
  backdrop-filter: blur(6px);

  border-radius: 20px;
  box-shadow: 0 15px 35px rgba(0, 0, 0, 0.12);
}

/* Heading */
.ai-practice h2 {
  text-align: center;
  font-size: 2.2rem;
  font-weight: 800;
  margin-bottom: 25px;
  color: #0f172a;
}

/* Cards container */
.ai-practice .card {
  background: #ffffff;
  border-radius: 14px;
  padding: 22px 20px;
  margin-bottom: 25px;

  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.08);
  transition: 0.3s ease;
}

/* Hover effect */
.ai-practice .card:hover {
  transform: translateY(-6px);
}

/* Card headings */
.ai-practice .card h3 {
  font-size: 1.4rem;
  font-weight: 700;
  margin-bottom: 12px;
  color: #2563eb;
}

/* List styling */
.ai-practice ul {
  padding-left: 18px;
  margin-top: 10px;
}

.ai-practice li {
  margin-bottom: 14px;
  line-height: 1.6;
  color: #334155;
}

/* Links */
.ai-practice a {
  display: inline-block;
  margin-top: 5px;
  color: #2563eb;
  font-weight: 600;
  text-decoration: none;
  transition: 0.2s ease;
}

.ai-practice a:hover {
  color: #38bdf8;
  text-decoration: underline;
}

/* Paragraph inside card */
.ai-practice p {
  font-size: 0.95rem;
  color: #475569;
  margin-top: 5px;
}

/* Workflow box special styling */
.ai-practice .card:last-child {
  text-align: center;
  background: linear-gradient(135deg, #2563eb, #38bdf8);
  color: white;
}


.ai-practice .card:last-child p {
  color: white;
}

/* ================= AI PRACTICE HEADING COLOR ================= */

/* Main heading */
.ai-practice h2 {
  color: rgba(30, 60, 114, 0.6);
}

/* Card headings */
.ai-practice .card h3 {
  color: rgba(30, 60, 114, 0.6);
}

#Datascience {
  max-width: 1100px;
  margin: 60px auto 30px;
  padding: 35px 30px;

  background: rgba(255, 255, 255, 0.80);
  backdrop-filter: blur(6px);

  border-radius: 20px;
  box-shadow: 0 15px 35px rgba(0, 0, 0, 0.12);
}

/* section heading */
#Datascience h2 {
  text-align: center;
  font-size: 2.2rem;
  font-weight: 800;
  margin-bottom: 10px;
  color: #0f172a;
}

/* thin separator */
#Datascience hr {
  width: 80px;
  height: 4px;
  border: none;
  margin: 10px auto 25px;
  border-radius: 10px;
  background: linear-gradient(to right, #2563eb, #38bdf8);
}

/* description */
#Datascience p {
  font-size: 1rem;
  line-height: 1.7;
  color: #334155;
}

/* skills label */
#Datascience p b {
  color: #0f172a;
}

/* skills list */
#Datascience ul {
  margin-top: 10px;
  padding-left: 20px;
}

#Datascience li {
  margin-bottom: 6px;
}

#cybersecurity {
  max-width: 1100px;
  margin: 60px auto 30px;
  padding: 35px 30px;

  background: rgba(255, 255, 255, 0.80);
  backdrop-filter: blur(6px);

  border-radius: 20px;
  box-shadow: 0 15px 35px rgba(0, 0, 0, 0.12);
}

/* section heading */
#cybersecurity h2 {
  text-align: center;
  font-size: 2.2rem;
  font-weight: 800;
  margin-bottom: 10px;
  color: #0f172a;
}

/* thin separator */
#cybersecurity hr {
  width: 80px;
  height: 4px;
  border: none;
  margin: 10px auto 25px;
  border-radius: 10px;
  background: linear-gradient(to right, #2563eb, #38bdf8);
}

/* description */
#cybersecurity p {
  font-size: 1rem;
  line-height: 1.7;
  color: #334155;
}

/* skills label */
#cybersecurity p b {
  color: #0f172a;
}

/* skills list */
#cybersecurity ul {
  margin-top: 10px;
  padding-left: 20px;
}

#cybersecurity li {
  margin-bottom: 6px;
}

/* Section Background */
.dsa {
  max-width: 1100px;
  margin: 60px auto;
  padding: 35px 30px;

  background: rgba(255, 255, 255, 0.80);
  backdrop-filter: blur(6px);

  border-radius: 20px;
  box-shadow: 0 15px 35px rgba(0, 0, 0, 0.12);
}

.dsa .container {
  max-width: 900px;
  margin: auto;
  background: white;
  padding: 30px;
  border-radius: 20px;
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.05);
}


.dsa header {
  text-align: center;
  margin-bottom: 30px;
}

.dsa header h1 {
  font-size: 30px;
  color: #64748b;
}

.dsa header p {
  font-size: 16px;
  color: #475569;
  margin-top: 8px;
}

/* Question Card (inner boxes like screenshot) */
.question-card {
  background: #f8fafc;
  padding: 20px;
  border-radius: 16px;
  margin-bottom: 20px;
  border: 1px solid #e2e8f0;
}

/* Title */
.question-card h2 {
  color: #475569;
  margin-bottom: 8px;
}

/* Tags */
.tag {
  display: inline-block;
  padding: 4px 10px;
  border-radius: 6px;
  font-size: 12px;
  margin-bottom: 10px;
  color: white;
}

.easy {
  background: #22c55e;
}

.medium {
  background: #f59e0b;
}

.hard {
  background: #ef4444;
}

/* Buttons */
.solve-btn {
  display: inline-block;
  margin-top: 10px;
  margin-right: 10px;
  padding: 8px 14px;
  border-radius: 8px;
  background: #2563eb;
  color: white;
  text-decoration: none;
  font-size: 14px;
}

.solution-btn {
  padding: 8px 14px;
  border-radius: 8px;
  background: #64748b;
  color: white;
  border: none;
  cursor: pointer;
}

.solution {
  display: none;
  margin-top: 10px;
  padding: 10px;
  background: #e2e8f0;
  border-radius: 8px;
  font-size: 14px;
}

.roadmap {
  padding: 60px 20px;
  text-align: center;
  max-width: 1100px;
  margin: 60px auto;

  background: rgba(255, 255, 255, 0.80);
  backdrop-filter: blur(6px);

  border-radius: 20px;
  box-shadow: 0 15px 35px rgba(0, 0, 0, 0.12);

}

.roadmap h1 {
  color: #64748b;
  margin-bottom: 30px;
}

.roadmap-container {
  max-width: 800px;
  margin: auto;
}

.step {
  background: #f1f5f9;
  margin: 10px 0;
  padding: 15px;
  border-radius: 12px;
  font-weight: 500;
}


.navbar {
  width: 100%;
  height: 78px;
  background: rgba(255, 255, 255, 0.97);

  display: flex;
  justify-content: space-between;
  align-items: center;

  padding: 0 30px;


  position: fixed;
  top: 0;
  left: 0;
  z-index: 1000;

  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.08);
  backdrop-filter: blur(6px);
  box-sizing: border-box;
}

.main-content {
  padding-top: 100px;
}

/* ================= LEFT ================= */

.logo {
  display: flex;
  align-items: center;
  gap: 12px;
}

.logo img {
  width: 46px;
  height: 46px;
  object-fit: contain;
}

.logo span {
  font-size: 22px;
  font-weight: 700;

  background: linear-gradient(135deg, #000000, #24a0f9);
  background-clip: text;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;

  letter-spacing: 0.5px;
}

/* ================= RIGHT ================= */

.nav-right {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-shrink: 0;
}

/* ================= BUTTONS ================= */

.login-btn,
.menu-btn {
  background: linear-gradient(135deg, #246bff, #35baf2);
  color: white;
  border: none;
  border-radius: 10px;
  cursor: pointer;
  font-weight: 600;

  display: flex;
  align-items: center;
  justify-content: center;

  transition: all 0.2s ease;
  box-shadow: 0 6px 16px rgba(37, 111, 255, 0.25);
}


.login-btn {
  height: 42px;

  padding: 0 22px;

  font-size: 14px;
}


.menu-btn {
  width: 44px;
  /* 🔥 same size */
  height: 44px;
  font-size: 20px;
}

/* ================= HOVER EFFECT ================= */

.login-btn,
.menu-btn {
  transition: transform 0.2s ease;
}

.login-btn:hover,
.menu-btn:hover {
  transform: translateY(-2px);
}

/* MENU ICON COLOR CHANGE */
.menu-btn:hover {
  color: #f1c40f;
}

/* ================= AI RESOURCES + INTERNSHIP FINAL CSS ================= */

#ai-resources-block,
#internship-block {
  max-width: 1100px;
  margin: 60px auto 40px;
  padding: 42px 46px;
  background: rgba(255, 255, 255, 0.88);
  backdrop-filter: blur(6px);
  border-radius: 22px;
  box-shadow: 0 18px 45px rgba(0, 0, 0, 0.14);
}

#ai-resources-block h2,
#internship-block h2,
.resource-heading {
  text-align: center;
  font-size: 1.7rem;
  font-weight: 800;
  color: #0f172a;
  margin: 0 auto 35px;
  display: block;
  position: relative;
}


#ai-resources-block h2::after,
#internship-block h2::after,
.resource-heading::after {
  content: "";
  display: block;
  width: 70px;
  height: 4px;
  background: linear-gradient(to right, #2563eb, #38bdf8);
  margin: 12px auto 0;
  border-radius: 20px;
}


#ai-resources-block .sources,
#internship-block .sources {
  max-width: 100%;
  width: 100%;
  margin: 0;
  padding: 0;
  background: transparent;
  box-shadow: none;
  border-radius: 0;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 22px 24px;
  list-style: none;
}

#ai-resources-block .sources li,
#internship-block .sources li {
  background: #ffffff;
  padding: 22px 24px;
  border-radius: 14px;
  border-left: 5px solid #2563eb;
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.08);
  line-height: 1.6;
  transition: 0.3s ease;
  margin: 0;
}

#ai-resources-block .sources li:hover,
#internship-block .sources li:hover {
  transform: translateY(-5px);
  box-shadow: 0 14px 30px rgba(37, 99, 235, 0.18);
}


#ai-resources-block .sources a {
  display: block;
  font-size: 16px;
  color: #2563eb;
  font-weight: 700;
  margin-bottom: 7px;
  text-decoration: none;
}

/* AI/ML description */
#ai-resources-block .sources p {
  font-size: 14px;
  color: #334155;
  margin: 0;
  line-height: 1.55;
}


#internship-block .sources a {
  color: #2563eb;
  font-weight: 700;
  text-decoration: none;
}

#ai-resources-block .sources a:hover,
#internship-block .sources a:hover {
  text-decoration: underline;
}

#internship-block .sources b {
  color: #2563eb;
}


@media (max-width: 800px) {

  #ai-resources-block,
  #internship-block {
    padding: 30px 22px;
  }

  #ai-resources-block .sources,
  #internship-block .sources {
    grid-template-columns: 1fr;
  }
}

/* ================= FINAL PRACTICE SECTION ================= */

#ai-practice {
  max-width: 1100px;
  margin: 80px auto;
  padding: 60px 70px;

  background: rgba(255, 255, 255, 0.92);
  border-radius: 24px;
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.12);

  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 60px;
}

#ai-practice h2 {
  grid-column: 1 / -1;
  text-align: center;
  font-size: 2rem;
  font-weight: 800;
  color: #0f172a;
  margin-bottom: 20px;
}

#ai-practice h2::after {
  content: "";
  display: block;
  width: 90px;
  height: 4px;
  background: linear-gradient(to right, #2563eb, #38bdf8);
  margin: 12px auto 0;
  border-radius: 20px;
}


#ai-practice .card {
  background: #ffffff;
  padding: 35px 40px;
  border-radius: 18px;
  border-left: 6px solid #2563eb;
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.08);
  transition: 0.3s;
}

#ai-practice .card:hover {
  transform: translateY(-5px);
}

#ai-practice .card:last-child {
  grid-column: 1 / -1;
}


#ai-practice .card h3 {
  font-size: 20px;
  margin-bottom: 18px;
}

#ai-practice li {
  margin-bottom: 20px;
}

#ai-practice strong {
  color: #0f172a;
}

#ai-practice a {
  color: #2563eb;
  font-weight: 700;
  text-decoration: none;
}

#ai-practice a:hover {
  text-decoration: underline;
}

#ai-practice p {
  font-size: 14px;
  color: #475569;
}


@media (max-width: 800px) {
  #ai-practice {
    grid-template-columns: 1fr;
    padding: 40px 25px;
  }
}

/* ================= INTERVIEW ROADMAP SECTION ================= */

#roadmap {
  max-width: 1000px;
  margin: 70px auto;
  padding: 55px 45px;
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(6px);
  border-radius: 24px;
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.12);
}

#roadmap h1 {
  text-align: center;
  font-size: 2rem;
  font-weight: 800;
  color: #0f172a;
  margin-bottom: 55px;
  position: relative;
}

#roadmap h1::after {
  content: "";
  display: block;
  width: 85px;
  height: 4px;
  background: linear-gradient(to right, #2563eb, #38bdf8);
  margin: 12px auto 0;
  border-radius: 20px;
}


.roadmap-container {
  position: relative;
  max-width: 760px;
  margin: auto;
  display: flex;
  flex-direction: column;
  gap: 35px;
}

.roadmap-container::before {
  content: "";
  position: absolute;
  top: 10px;
  bottom: 10px;
  left: 24px;
  width: 4px;
  background: linear-gradient(to bottom, #2563eb, #38bdf8);
  border-radius: 20px;
}


.step {
  position: relative;
  margin-left: 70px;
  background: #ffffff;
  padding: 22px 26px;
  border-radius: 16px;
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.08);
  font-size: 15px;
  font-weight: 600;
  color: #0f172a;
  line-height: 1.5;
  transition: 0.3s ease;
}


.step::before {
  content: "";
  position: absolute;
  left: -58px;
  top: 22px;
  width: 18px;
  height: 18px;
  background: #2563eb;
  border: 5px solid #dbeafe;
  border-radius: 50%;
  box-shadow: 0 0 0 4px #ffffff;
}

.step:hover {
  transform: translateX(8px);
  box-shadow: 0 16px 35px rgba(37, 99, 235, 0.18);
}

/* MOBILE */
@media (max-width: 800px) {
  #roadmap {
    padding: 40px 22px;
  }

  .roadmap-container::before {
    left: 18px;
  }

  .step {
    margin-left: 55px;
    padding: 20px;
  }

  .step::before {
    left: -46px;
  }
}

/* ===== NOTES HEADING UNDERLINE ===== */

.notes-box h2 {
  position: relative;
  display: inline-block;
}

.notes-box h2::after {
  content: "";
  display: block;

  width: 60px;
  height: 4px;

  margin: 10px auto 0;

  border-radius: 10px;

  background: linear-gradient(to right, #2563eb, #38bdf8);
}

/* ===== MAIN HEADING BOX WIDTH FIX ===== */

#mainheading h1 {
  max-width: 1100px;
  width: 95%;
  display: block;
  margin: 0 auto;
  text-align: center;
}

/* ===== TOP BOX SPACING FIX ===== */

#mainheading {
  margin-top: 30px;

}

/* ===== PREMIUM INTRO SECTION ===== */

.intro-text {
  max-width: 1050px;
  width: 95%;
  margin: 28px auto 45px;
  padding: 32px 42px;

  background: linear-gradient(135deg, #ffffff, #f0f9ff);
  border-radius: 22px;
  border: 1px solid rgba(37, 99, 235, 0.12);
  border-left: 6px solid #2563eb;

  box-shadow: 0 18px 45px rgba(15, 23, 42, 0.10);
  text-align: center;
}

.intro-text p {
  max-width: 900px;
  margin: 0 auto;
  font-size: 19px;
  line-height: 1.75;
  font-weight: 500;
  color: #334155;
}

.intro-sub::before {
  content: "";
  display: none;
}

.intro-sub {
  text-align: center;
  display: block;
  margin: 25px auto;

  font-size: 20px;
  /* 👈 thoda bada */
  font-weight: 700;
  /* 👈 bold */
  color: #0f172a;

  letter-spacing: 0.5px;
}

/* optional modern underline */
.intro-sub::after {
  content: "";
  display: block;
  width: 120px;
  height: 3px;
  margin: 10px auto 0;
  border-radius: 10px;
  background: linear-gradient(to right, #2563eb, #38bdf8);
}

.nav-right {
  display: flex !important;
  align-items: center !important;
  gap: 18px !important;
  flex-shrink: 0 !important;
}

.nav-right button {
  position: static !important;
  margin: 0 !important;
  transform: none !important;
}

.login-btn {
  width: 85px !important;
  height: 44px !important;
  padding: 0 !important;
}

.menu-btn {
  width: 48px !important;
  height: 44px !important;
  padding: 0 !important;
}

.login-btn,
.menu-btn {
  transition: transform 0.2s ease !important;
}

.login-btn:hover,
.menu-btn:hover {
  transform: translateY(-2px) !important;
}

.login-btn,
.menu-btn {
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.login-btn:hover,
.menu-btn:hover {
  transform: translateY(-2px);
  /* halka upar */
  box-shadow: 0 8px 20px rgba(37, 111, 255, 0.25);
  /* 🔵 soft blue glow */
}

#topBtn {
  position: fixed;
  bottom: 30px;
  right: 30px;

  width: 45px;
  height: 45px;

  background: linear-gradient(135deg, #246bff, #35baf2);
  color: white;
  border: none;
  border-radius: 50%;

  font-size: 20px;
  cursor: pointer;

  display: none;
  /* 🔥 initially hidden */
  z-index: 999;

  box-shadow: 0 6px 16px rgba(37, 111, 255, 0.3);
  transition: all 0.3s ease;
}

/* hover */
#topBtn:hover {
  transform: translateY(-3px);
}

/* ================= CHATBOT BUTTON ================= */

.chatbot-btn {
  position: fixed;
  bottom: 30px;
  right: 90px;
  /* top button ke side me */

  width: 45px;
  height: 45px;

  background: linear-gradient(135deg, #246bff, #35baf2);
  color: white;

  border-radius: 50%;
  border: none;

  display: flex;
  align-items: center;
  justify-content: center;

  font-size: 20px;
  cursor: pointer;

  z-index: 999;

  box-shadow: 0 6px 16px rgba(37, 111, 255, 0.3);
  transition: transform 0.2s ease;
}

/* hover (same as buttons) */
.chatbot-btn:hover {
  transform: translateY(-2px);
}

/* ================= CHATBOX ================= */

.chatbot-box {
  position: fixed;
  bottom: 90px;
  right: 30px;

  width: 300px;
  height: 380px;

  background: white;
  border-radius: 14px;

  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.18);

  display: none;
  flex-direction: column;
  overflow: hidden;

  z-index: 1000;
}

/* ================= HEADER ================= */

.chatbot-header {
  background: linear-gradient(135deg, #246bff, #35baf2);
  color: white;

  padding: 12px 14px;

  display: flex;
  justify-content: space-between;
  align-items: center;

  font-weight: 700;
  font-size: 14px;
}

.chatbot-header button {
  background: transparent;
  border: none;
  color: white;
  font-size: 20px;
  cursor: pointer;
}

/* ================= MESSAGES ================= */

.chatbot-messages {
  flex: 1;
  padding: 12px;
  overflow-y: auto;

  background: #f8fbff;
}

/* BOT MESSAGE */
.bot-msg {
  background: #eaf4ff;
  color: #162d42;

  padding: 8px 10px;
  border-radius: 10px;

  font-size: 13px;
  margin-bottom: 8px;

  max-width: 80%;
}

/* USER MESSAGE */
.user-msg {
  background: #246bff;
  color: white;

  padding: 8px 10px;
  border-radius: 10px;

  font-size: 13px;
  margin-bottom: 8px;

  margin-left: auto;
  max-width: 80%;
}

/* ================= INPUT ================= */

.chatbot-input {
  display: flex;
  border-top: 1px solid #e5e7eb;
}

.chatbot-input input {
  flex: 1;
  border: none;
  padding: 10px;
  outline: none;
  font-size: 13px;
}

.chatbot-input button {
  border: none;
  background: #246bff;
  color: white;
  padding: 0 14px;
  cursor: pointer;
}
@media (max-width: 768px) {

  .navbar {
    width: 100%;
    padding: 12px 16px;
  }

  .logo img {
    width: 45px;
  }

  .logo span {
    font-size: 22px;
    line-height: 1.1;
  }

  .hero,
  .project-idea-box,
  .container,
  .card,
  .section-box {
    width: 100%;
    max-width: 100%;
    margin: 20px auto;
    padding: 20px;
  }

  h1 {
    font-size: 38px;
    line-height: 1.25;
    word-break: break-word;
  }

  p {
    font-size: 17px;
    line-height: 1.7;
  }
}
html {
  scroll-behavior: smooth;
}

/* Fixed navbar offset fix */
[id] {
  scroll-margin-top: 110px;
}