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

body {
    font-family: 'Inter', system-ui, sans-serif;
    line-height: 1.7;
    color: #222;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* ==================== HEADER ==================== */
.header {
    background: #0f172a;
    color: white;
    padding: 18px 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.header .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
    color: inherit;
}

.logo img {
    height: 52px;
    width: auto;
}

.logo-text {
    font-size: 1.75rem;
    font-weight: 700;
    color: white;
}

/* Desktop Navigation */
.desktop-nav {
    display: flex;
    align-items: center;
    gap: 28px;
}

.desktop-nav a {
    color: white;
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s;
}

.desktop-nav a:hover {
    color: #00b4d8;
}

.btn-primary {
    background: #00b4d8;
    color: white;
    padding: 10px 24px;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s;
}

.btn-primary:hover {
    background: #0099b8;
    transform: translateY(-2px);
}

/* Mobile Menu Button */
.mobile-menu-btn {
    display: none;
    font-size: 1.8rem;
    cursor: pointer;
    color: white;
}

/* Mobile Menu */
.mobile-menu {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    background: rgba(0, 0, 0, 0.65);
    backdrop-filter: blur(8px);
    z-index: 1100;
}

.mobile-menu-content {
    position: absolute;
    top: 0;
    right: 0;
    width: 280px;
    height: 100%;
    background: white;
    padding: 80px 30px 30px;
    display: flex;
    flex-direction: column;
    gap: 18px;
    box-shadow: -5px 0 20px rgba(0, 0, 0, 0.1);
}

.mobile-menu-content a {
    font-size: 1.15rem;
    color: #334155;
    text-decoration: none;
    padding: 8px 0;
}

.mobile-menu-content .btn-primary {
    margin-top: 15px;
    text-align: center;
    color: white;
}

/* Responsive */
@media (max-width: 992px) {
    .desktop-nav {
        display: none;
    }
    .mobile-menu-btn {
        display: block;
    }
}

/* ==================== অন্যান্য বিদ্যমান স্টাইল ==================== */
.hero {
    background: linear-gradient(135deg, #0f172a, #1e3a8a);
    color: white;
    text-align: center;
    padding: 120px 20px;
}

.hero h1 {
    font-size: 3.2rem;
    margin-bottom: 16px;
}

.hero .tagline {
    font-size: 1.35rem;
    max-width: 700px;
    margin: 0 auto 30px;
    opacity: 0.9;
}

.cta-button {
    background: #00b4d8;
    color: white;
    padding: 16px 42px;
    font-size: 1.2rem;
    border-radius: 50px;
    text-decoration: none;
    display: inline-block;
    font-weight: 700;
}

.section {
    padding: 90px 0;
}

.bg-light {
    background: #f8fafc;
}

h2 {
    text-align: center;
    font-size: 2.4rem;
    margin-bottom: 20px;
    color: #0f172a;
}

.section-desc {
    text-align: center;
    max-width: 700px;
    margin: 0 auto 50px;
    color: #555;
    font-size: 1.15rem;
}













.tutor-section,
.social-section {
    background: #f8fafc;
}

/* Footer */
.footer {
    background: #0f172a;
    color: #aaa;
    padding: 40px 0;
    text-align: center;
    font-size: 0.95rem;
}

/* ==================== FOUNDERS NOTES ==================== */
.notes-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
    gap: 25px;
    margin-top: 30px;
}

.note-card {
    background: white;
    border: 1px solid #e2e8f0;
    border-radius: 16px;
    padding: 28px 30px;
    text-decoration: none;
    color: inherit;
    transition: all 0.4s ease;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.04);
}

.note-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.1);
    border-color: #3b82f6;
}

.note-card h3 {
    font-size: 1.35rem;
    margin-bottom: 12px;
    color: #1e2937;
    line-height: 1.4;
}

.note-card p {
    color: #64748b;
    line-height: 1.65;
    margin-bottom: 18px;
}

.note-card .read-more {
    color: #3b82f6;
    font-weight: 600;
    font-size: 0.98rem;
    display: inline-flex;
    align-items: center;
    gap: 6px;
}


/* ==================== ABOUT SECTION ==================== */

.about-section{
    background:
      linear-gradient(
        180deg,
        #ffffff,
        #f8fafc
      );
    overflow:hidden;
}

/* ==================== HERO ==================== */

.about-hero{
    text-align:center;
    max-width:900px;
    margin:0 auto 80px;
}

.about-badge{
    display:inline-flex;
    align-items:center;
    gap:8px;
    background:#e0e7ff;
    color:#3730a3;
    padding:10px 18px;
    border-radius:999px;
    font-size:0.9rem;
    font-weight:700;
    margin-bottom:24px;
}

.about-hero h2{
    font-size:3rem;
    color:#0f172a;
    margin-bottom:24px;
    letter-spacing:-1px;
}

.about-lead{
    font-size:1.12rem;
    color:#475569;
    line-height:2;
}

/* ==================== STORY ==================== */

.about-story{
    position:relative;
    max-width:980px;
    margin:0 auto;
    padding-left:40px;
}

/* Vertical line */
.story-line{
    position:absolute;
    top:0;
    left:14px;
    width:3px;
    height:100%;
    background:
      linear-gradient(
        180deg,
        #3b82f6,
        #cbd5e1
      );
    border-radius:999px;
}

/* Block */
.story-block{
    position:relative;
    margin-bottom:60px;
}

/* Dot */
.story-dot{
    position:absolute;
    left:-34px;
    top:10px;
    width:18px;
    height:18px;
    background:#2563eb;
    border:4px solid white;
    border-radius:50%;
    box-shadow:
      0 0 0 4px rgba(37,99,235,0.15);
}

/* Content */
.story-content{
    background:white;
    border:1px solid #e2e8f0;
    border-radius:24px;
    padding:38px 34px;
    box-shadow:
      0 10px 30px rgba(15,23,42,0.05);
    transition:all 0.35s ease;
}

.story-content:hover{
    transform:translateY(-6px);
    box-shadow:
      0 18px 45px rgba(15,23,42,0.08);
}

/* Tag */
.story-tag{
    display:inline-block;
    background:#eff6ff;
    color:#2563eb;
    padding:8px 14px;
    border-radius:999px;
    font-size:0.8rem;
    font-weight:700;
    margin-bottom:18px;
    letter-spacing:0.5px;
    text-transform:uppercase;
}

/* Title */
.story-content h3{
    font-size:1.7rem;
    color:#0f172a;
    margin-bottom:18px;
    line-height:1.4;
}

/* Text */
.story-content p{
    color:#64748b;
    line-height:2;
    margin-bottom:18px;
    font-size:1rem;
}

/* ==================== QUOTE ==================== */

.about-quote{
    margin-top:70px;
    text-align:center;
    padding:55px 35px;
    background:
      linear-gradient(
        145deg,
        #0f172a,
        #111827
      );
    border-radius:28px;
    box-shadow:
      0 20px 50px rgba(15,23,42,0.16);
}

.about-quote p{
    color:#f8fafc;
    font-size:1.5rem;
    line-height:1.8;
    font-weight:600;
    max-width:900px;
    margin:auto;
}

/* ==================== RESPONSIVE ==================== */

@media(max-width:768px){

    .about-hero{
        margin-bottom:60px;
    }

    .about-hero h2{
        font-size:2.2rem;
    }

    .about-lead{
        font-size:1rem;
        line-height:1.9;
    }

    .about-story{
        padding-left:28px;
    }

    .story-line{
        left:9px;
    }

    .story-dot{
        width:14px;
        height:14px;
        left:-24px;
    }

    .story-content{
        padding:28px 22px;
        border-radius:18px;
    }

    .story-content h3{
        font-size:1.35rem;
    }

    .story-content p{
        font-size:0.96rem;
        line-height:1.9;
    }

    .about-quote{
        padding:40px 24px;
        border-radius:22px;
    }

    .about-quote p{
        font-size:1.15rem;
        line-height:1.8;
    }

}





/* ==================== PRINCIPLES SECTION ==================== */

.principles-section{
    background:
      linear-gradient(
        180deg,
        #f8fafc,
        #ffffff
      );
}

/* Header */
.principles-header{
    text-align:center;
    max-width:950px;
    margin:0 auto 60px;
}

.principles-badge{
    display:inline-flex;
    align-items:center;
    gap:8px;
    background:#e0f2fe;
    color:#0369a1;
    padding:10px 18px;
    border-radius:999px;
    font-size:0.9rem;
    font-weight:700;
    margin-bottom:22px;
}

.principles-header h2{
    font-size:2.8rem;
    color:#0f172a;
    margin-bottom:20px;
    letter-spacing:-1px;
}

.principles-header p{
    color:#64748b;
    font-size:1.05rem;
    line-height:1.95;
}

/* Grid */
.principles-grid{
    display:grid;
    grid-template-columns:repeat(auto-fit,minmax(280px,1fr));
    gap:26px;
}

/* Card */
.principle-card{
    position:relative;
    background:white;
    padding:34px 28px;
    border-radius:24px;
    border:1px solid #e2e8f0;
    overflow:hidden;
    transition:all 0.35s ease;
    box-shadow:
      0 8px 24px rgba(15,23,42,0.05);
}

/* Top border glow */
.principle-card::before{
    content:"";
    position:absolute;
    top:0;
    left:0;
    width:100%;
    height:4px;
    background:
      linear-gradient(
        90deg,
        #2563eb,
        #06b6d4
      );
}

/* Hover */
.principle-card:hover{
    transform:translateY(-10px);
    box-shadow:
      0 22px 45px rgba(15,23,42,0.10);
}

/* Number */
.principle-number{
    position:absolute;
    top:18px;
    right:22px;
    font-size:0.92rem;
    font-weight:800;
    color:#cbd5e1;
    letter-spacing:1px;
}

/* Icon */
.principle-icon{
    font-size:2.8rem;
    margin-bottom:20px;
}

/* Title */
.principle-card h3{
    font-size:1.28rem;
    color:#0f172a;
    margin-bottom:14px;
}

/* Text */
.principle-card p{
    color:#64748b;
    line-height:1.9;
    font-size:0.98rem;
}

/* ==================== RESPONSIVE ==================== */

@media(max-width:768px){

    .principles-header{
        margin-bottom:45px;
    }

    .principles-header h2{
        font-size:2.1rem;
    }

    .principles-header p{
        font-size:1rem;
        line-height:1.9;
    }

    .principles-grid{
        gap:22px;
    }

    .principle-card{
        padding:30px 24px;
        border-radius:20px;
    }

    .principle-card h3{
        font-size:1.18rem;
    }

}





/* ==================== ACTIVITIES SECTION ==================== */

.activities-section{
    background:
      linear-gradient(
        180deg,
        #ffffff,
        #f8fafc
      );
}

/* Header */
.activities-header{
    text-align:center;
    max-width:950px;
    margin:0 auto 60px;
}

.activities-badge{
    display:inline-flex;
    align-items:center;
    gap:8px;
    background:#ede9fe;
    color:#5b21b6;
    padding:10px 18px;
    border-radius:999px;
    font-size:0.9rem;
    font-weight:700;
    margin-bottom:22px;
}

.activities-header h2{
    font-size:2.8rem;
    color:#0f172a;
    margin-bottom:20px;
    letter-spacing:-1px;
}

.activities-header p{
    color:#64748b;
    line-height:1.95;
    font-size:1.05rem;
    margin-bottom:18px;
}

/* Grid */
.activities-grid{
    display:grid;
    grid-template-columns:repeat(auto-fit,minmax(280px,1fr));
    gap:25px;
    margin-top:35px;
}

/* Card */
.activity-card{
    position:relative;
    background:white;
    border-radius:22px;
    padding:34px 30px;
    border:1px solid #e2e8f0;
    transition:all 0.4s ease;
    box-shadow:
      0 8px 24px rgba(15,23,42,0.04);
    overflow:hidden;
}

/* Top Accent */
.activity-card::before{
    content:"";
    position:absolute;
    top:0;
    left:0;
    width:100%;
    height:4px;
    background:
      linear-gradient(
        90deg,
        #3b82f6,
        #8b5cf6
      );
}

.activity-card:hover{
    transform:translateY(-8px);
    box-shadow:
      0 22px 45px rgba(59,130,246,0.10);
    border-color:#cbd5e1;
}

/* Icon */
.activity-icon{
    font-size:2.6rem;
    margin-bottom:20px;
}

/* Title */
.activity-card h3{
    font-size:1.32rem;
    color:#0f172a;
    margin-bottom:16px;
}

/* Text */
.activity-card p{
    color:#64748b;
    line-height:1.9;
    font-size:0.98rem;
}

/* ==================== RESPONSIVE ==================== */

@media(max-width:768px){

    .activities-header{
        margin-bottom:45px;
    }

    .activities-header h2{
        font-size:2.1rem;
    }

    .activities-header p{
        font-size:1rem;
        line-height:1.9;
    }

    .activities-grid{
        gap:22px;
    }

    .activity-card{
        padding:30px 24px;
        border-radius:20px;
    }

    .activity-card h3{
        font-size:1.18rem;
    }

}






/* ==================== IMPACT SECTION ==================== */

.impact-section{
    background:
      linear-gradient(
        180deg,
        #f8fafc,
        #eef2ff
      );
}

/* Heading */
.impact-heading{
    text-align:center;
    max-width:950px;
    margin:0 auto 55px;
}

.impact-heading h2{
    font-size:2.8rem;
    margin-bottom:18px;
    color:#0f172a;
    letter-spacing:-1px;
}

.impact-heading p{
    color:#475569;
    line-height:1.9;
    font-size:1.06rem;
}

/* Grid */
.impact-grid{
    display:grid;
    grid-template-columns:repeat(auto-fit,minmax(280px,1fr));
    gap:28px;
}

/* Card */
.impact-card{
    background:white;
    border-radius:22px;
    padding:32px 28px;
    border:1px solid #e2e8f0;
    transition:all 0.35s ease;
    box-shadow:
      0 8px 25px rgba(15,23,42,0.05);
}

.impact-card:hover{
    transform:translateY(-7px);
    box-shadow:
      0 18px 40px rgba(15,23,42,0.09);
}

/* Icon */
.impact-icon{
    font-size:2.8rem;
    margin-bottom:18px;
}

/* Title */
.impact-card h3{
    color:#0f172a;
    margin-bottom:14px;
    font-size:1.28rem;
    line-height:1.4;
}

/* Text */
.impact-card p{
    color:#64748b;
    line-height:1.8;
    font-size:0.97rem;
}

/* Future Vision */
.future-vision{
    margin-top:70px;
    background:
      linear-gradient(
        145deg,
        #0f172a,
        #111827
      );
    color:white;
    border-radius:26px;
    padding:55px 45px;
    text-align:center;
    box-shadow:
      0 20px 50px rgba(15,23,42,0.18);
}

.future-vision h3{
    font-size:2rem;
    margin-bottom:22px;
    color:#f8fafc;
}

.future-vision p{
    color:#cbd5e1;
    line-height:2;
    max-width:920px;
    margin:0 auto 20px;
    font-size:1.02rem;
}

/* ==================== RESPONSIVE ==================== */

@media(max-width:768px){

    .impact-heading h2{
        font-size:2.1rem;
    }

    .impact-grid{
        gap:22px;
    }

    .impact-card{
        padding:28px 22px;
        border-radius:18px;
    }

    .future-vision{
        padding:38px 24px;
        border-radius:20px;
    }

    .future-vision h3{
        font-size:1.6rem;
    }

    .future-vision p{
        font-size:0.97rem;
        line-height:1.9;
    }

}















/* ==================== FOUNDERS ==================== */

.founders-grid{
    display:grid;
    grid-template-columns:repeat(auto-fit,minmax(320px,1fr));
    gap:32px;
    margin-top:40px;
}

/* Card */
.founder-card{
    background:#ffffff;
    border-radius:24px;
    padding:38px 32px;
    text-align:center;
    border:1px solid #e5e7eb;
    transition:all 0.35s ease;
    box-shadow:
        0 10px 30px rgba(15,23,42,0.06),
        0 2px 10px rgba(15,23,42,0.04);
    position:relative;
    overflow:hidden;
}

/* subtle top glow */
.founder-card::before{
    content:"";
    position:absolute;
    top:0;
    left:0;
    width:100%;
    height:5px;
    background:linear-gradient(90deg,#2563eb,#06b6d4,#14b8a6);
}

/* Hover */
.founder-card:hover{
    transform:translateY(-8px);
    box-shadow:
        0 20px 45px rgba(15,23,42,0.10),
        0 8px 18px rgba(15,23,42,0.06);
}

/* Image holder */
.founder-image-box{
    width:140px;
    height:140px;
    margin:0 auto 22px;
    position:relative;
}

/* Founder image */
.founder-image{
    width:100%;
    height:100%;
    object-fit:cover;
    border-radius:50%;
    border:5px solid #ffffff;
    box-shadow:
        0 10px 25px rgba(0,0,0,0.12);
}

/* Name */
.founder-card h3{
    font-size:1.55rem;
    color:#0f172a;
    margin-bottom:8px;
    font-weight:700;
    letter-spacing:-0.3px;
}

/* Role */
.founder-card .role{
    color:#2563eb;
    font-size:1rem;
    font-weight:600;
    margin-bottom:18px;
    letter-spacing:0.2px;
}

/* Bio */
.founder-bio{
    color:#64748b;
    line-height:1.8;
    font-size:0.98rem;
    max-width:95%;
    margin:auto;
}

/* ==================== RESPONSIVE ==================== */

@media(max-width:768px){

    .founders-grid{
        grid-template-columns:1fr;
        gap:24px;
    }

    .founder-card{
        padding:30px 24px;
        border-radius:20px;
    }

    .founder-image-box{
        width:120px;
        height:120px;
    }

    .founder-card h3{
        font-size:1.35rem;
    }

    .founder-bio{
        font-size:0.95rem;
    }
}

/* ==================== JOIN MOVEMENT CARD ==================== */

.join-movement-card{
    background:
      linear-gradient(
        145deg,
        #0f172a,
        #111827
      );
    color:white;
    border:none;
}

/* top gradient line */
.join-movement-card::before{
    background:linear-gradient(
      90deg,
      #38bdf8,
      #22c55e,
      #f59e0b
    );
}

/* icon */
.join-icon-box{
    display:flex;
    align-items:center;
    justify-content:center;
    font-size:4rem;
    background:
      radial-gradient(circle at top,
      rgba(255,255,255,0.15),
      rgba(255,255,255,0.04));
    border-radius:50%;
    color:white;
}

/* title */
.join-movement-card h3{
    color:#f8fafc;
}

/* role */
.join-movement-card .role{
    color:#38bdf8;
}

/* text */
.join-movement-card .founder-bio{
    color:#cbd5e1;
}

/* button */
.join-movement-btn{
    margin-top:24px;
    border:none;
    background:linear-gradient(
      135deg,
      #2563eb,
      #06b6d4
    );
    color:white;
    padding:14px 24px;
    border-radius:14px;
    font-size:0.96rem;
    font-weight:600;
    cursor:pointer;
    transition:all 0.3s ease;
    box-shadow:
      0 8px 20px rgba(37,99,235,0.25);
}

/* hover */
.join-movement-btn:hover{
    transform:translateY(-2px);
    box-shadow:
      0 14px 30px rgba(37,99,235,0.35);
}




/* Legal & Information Section */
.legal-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.legal-card {
    background: white;
    padding: 35px 30px;
    border-radius: 16px;
    box-shadow: 0 6px 25px rgba(0, 0, 0, 0.06);
    transition: all 0.4s ease;
}

.legal-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 12px 30px rgba(0, 0, 0, 0.08);
}

.legal-card h3 {
    font-size: 1.5rem;
    margin-bottom: 18px;
    color: #1e2937;
}

.legal-content h4 {
    margin: 20px 0 10px;
    color: #334155;
    font-size: 1.1rem;
}

.legal-content ul {
    padding-left: 20px;
    margin: 12px 0 20px;
}

.legal-content li {
    margin-bottom: 8px;
}

.contact-info {
    margin: 20px 0;
    line-height: 2;
}

.last-updated {
    font-size: 0.9rem;
    color: #64748b;
    font-style: italic;
    margin-top: 25px;
}




/* ==================== FOOTER ==================== */
.footer {
  background: #0f172a;
  color: #aaa;
  padding: 60px 0 30px;
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 40px;
  margin-bottom: 40px;
}

.footer-col h3,
.footer-col h4 {
  color: white;
  margin-bottom: 15px;
  font-size: 1.25rem;
}

.footer-col p {
  line-height: 1.6;
  max-width: 280px;
}

.footer-nav {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-link {
  color: #aaa;
  text-decoration: none;
  transition: color 0.3s;
}

.footer-link:hover {
  color: #00b4d8;
}

.social-links {
  display: flex;
  gap: 18px;
}

.social-links a {
  color: #aaa;
  font-size: 1.4rem;
  transition: all 0.3s;
}

.social-links a:hover {
  color: #00b4d8;
  transform: translateY(-3px);
}

.copyright {
  text-align: center;
  padding-top: 30px;
  border-top: 1px solid #334155;
  color: #777;
  font-size: 0.95rem;
}

/* Responsive */
@media (max-width: 768px) {
  .footer-grid {
    gap: 35px;
  }
}