/* Google Fonts থেকে বাংলা ফন্ট লোড করা হলো */
@import url('https://fonts.googleapis.com/css2?family=Tiro+Bangla:ital@0;1&display=swap');

body {
    font-family: 'Tiro Bangla', 'SolaimanLipi', Arial, sans-serif; /* বাংলা ফন্ট ব্যবহার */
    background: #e9f0f7; /* হালকা নীলচে ব্যাকগ্রাউন্ড */
    margin: 0; 
    padding: 0;
    color: #333;
}

/* --- নেভিগেশন মেনুর জন্য নতুন CSS --- */
.main-nav {
    background-color: #1e293b; /* গাঢ় নীল ব্যাকগ্রাউন্ড */
    padding: 10px 0;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.2);
}

.main-nav ul {
    list-style: none;
    padding: 0;
    margin: 0 auto;
    max-width: 900px;
    display: flex;
    justify-content: space-around;
}

.main-nav li a {
    text-decoration: none;
    color: white;
    font-size: 1.1rem;
    font-weight: 600;
    padding: 10px 15px;
    display: block;
    border-radius: 4px;
    transition: background-color 0.3s ease;
}

.main-nav li a:hover,
.main-nav li a.active {
    background-color: #0ea5e9; 
}


h1 {
    text-align: center;
    margin-bottom: 30px;
    margin-top: 30px;
    color: #0b509d; /* গাঢ় নীল */
    font-weight: 700;
    border-bottom: 3px solid #0b509d;
    padding-bottom: 10px;
}
.quiz-container {
    max-width: 900px;
    margin: 0 auto;
}

/* ইনপুট বার */
.search-row { 
    display:flex; 
    gap:8px; 
    margin-bottom:16px; 
}
.search-row input[type="text"] {
    flex:1; 
    padding: 15px 12px; 
    border:1px solid #cfd8e3; 
    border-radius:8px;
    background:#fff;
    outline: #c8d3e6;
}
.search-row button {
    padding:10px 14px; 
    border-radius:8px; 
    border:0; 
    background:#1976d2; 
    color:#fff;
    cursor:pointer;
}
.search-row button:disabled { 
    background:#9bbce6; 
    cursor:not-allowed; 
}


.question-card {
    background: white;
    border-radius: 12px;
    margin-bottom: 25px;
    padding: 25px 30px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1); /* উন্নত শ্যাডো */
    border: 1px solid #dcdcdc;
}
.question-number {
    font-weight: 700;
    font-size: 1.4rem;
    margin-bottom: 12px;
    color: #1a73e8; /* নীল */
    padding-right: 10px;
}
.question-text {
    font-size: 1.2rem;
    margin-bottom: 20px;
    font-weight: 500;
}
.options-list {
    list-style: none;
    padding-left: 0;
}
.option-item {
    padding: 14px 20px;
    margin-bottom: 10px;
    border-radius: 8px;
    border: 2px solid #c8d3e6; /* হালকা নীলচে বর্ডার */
    color: #444;
    font-size: 1.05rem;
    cursor: pointer;
    transition: all 0.2s ease;
}
.option-item:hover {
    background-color: #f0f7ff; /* হোভারে হালকা নীল */
    border-color: #1a73e8;
}

/* সঠিক উত্তরকে হাইলাইট করবে */
.option-item.correct {
    background-color: #e0f2f1; /* হালকা সবুজ */
    border-color: #00897b; /* টিল রঙের বর্ডার */
    color: #004d40;
    font-weight: 600;
    position: relative;
}
.option-item.correct::before {
    content: "✅"; /* সঠিক চিহ্নের ইমোজি */
    position: absolute;
    right: 15px;
    top: 50%;
    transform: translateY(-50%);
    font-size: 1.2rem;
}
.explanation {
    background: #f0f7ff; /* হালকা নীল ব্যাকগ্রাউন্ড */
    border-left: 6px solid #1a73e8; /* গাঢ় নীল বর্ডার */
    padding: 18px 25px;
    margin-top: 20px;
    font-size: 1rem;
    line-height: 1.6;
    color: #333;
    border-radius: 0 8px 8px 0;
}

/* রেসপনসিভনেস */
@media (max-width: 600px) {
    .main nav {
        padding: 15px 10px;
    }
    .main-nav li a {
        font-size: 0.7rem;
    }
    .quiz-container{
        padding: 0 15px;
    }
    h1 {
        font-size: 1.5rem;
        padding: 0 10px;
    }
    .question-card {
        padding: 15px 15px;
    }
    .question-number {
        font-size: 1.2rem;
    }
    .question-text {
        font-size: 1.1rem;
    }
    .option-item {
        font-size: 0.95rem;
        padding: 12px 15px;
    }
    .option-item.correct::before {
        right: 10px;
        font-size: 1rem;
    }
    .explanation {
        padding: 15px 18px;
        font-size: 0.9rem;
    }
    
}



/* Overall Result Container */

#overall-data-container {
    background: white;
    border-radius: 12px;
    padding: 25px 30px;
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.1);
    border: 1px solid #dcdcdc;
    margin-bottom: 30px;
    text-align: center;
    animation: fadeIn 0.6s ease-in-out;
    overflow-x: auto; /* Prevent horizontal scroll */
}

/* Title Highlight */
h1::after {
    content: "";
    display: block;
    width: 80px;
    height: 4px;
    background: #1a73e8;
    margin: 12px auto 0;
    border-radius: 2px;
}

/* Table Wrapper for Responsiveness */
.table-responsive {
    width: 100%;
    overflow-x: auto;
}

/* Table Design */
#overall-data-container table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 20px;
    min-width: 600px; /* Prevent breaking table structure */
    border-radius: 10px;
}

#overall-data-container th,
#overall-data-container td {
    padding: 14px 16px;
    text-align: center;
    border: 1px solid #e5e7eb;
    font-size: 1rem;
}

#overall-data-container th {
    background: linear-gradient(90deg, #0b509d, #1a73e8);
    color: #fff;
    font-weight: 600;
    letter-spacing: 0.5px;
    text-transform: uppercase;
}

#overall-data-container tr:nth-child(even) {
    background: #f9fbff;
}

#overall-data-container tr:hover {
    background: #e3f2fd;
    transition: background 0.3s ease;
}

/* Loader / Message */
#overall-data-container p {
    font-size: 1.1rem;
    color: #666;
    margin: 15px 0;
}

/* Simple Fade-in Animation */
@keyframes fadeIn {
    from {opacity: 0; transform: translateY(10px);}
    to {opacity: 1; transform: translateY(0);}
}

/* --- Top 3 Winner Section --- */
#top-3-container {
    margin-bottom: 100px;
    margin-top: 100px;
}

.top-3-wrapper {
    display: flex;
    justify-content: center;
    align-items: flex-end;
    gap: 40px;
    margin: 40px auto;
    max-width: 1000px;
    flex-wrap: wrap;
}

.winner-card {
    background: white;
    border-radius: 20px;
    padding: 25px 20px;
    text-align: center;
    box-shadow: 0 10px 25px rgba(0,0,0,0.12);
    flex: 1;
    max-width: 280px;
    transition: all 0.3s ease;
    position: relative;
}

.winner-card img {
    width: 120px;
    height: 120px;
    object-fit: cover;
    border-radius: 50%;
    margin-bottom: 15px;
    border: 5px solid #fff;
    box-shadow: 0 4px 12px rgba(0,0,0,0.15);
}

.winner-card h2 {
    margin: 8px 0;
    font-size: 1.3rem;
    color: #0b509d;
    font-weight: 700;
}

.winner-card p {
    margin: 5px 0;
    font-size: 0.95rem;
    color: #555;
}

.winner-card span {
    display: inline-block;
    margin-top: 10px;
    font-size: 1.2rem;
    font-weight: bold;
    color: #1a73e8;
    background: #f0f7ff;
    padding: 6px 14px;
    border-radius: 30px;
}

.winner-card .medal {
    position: absolute;
    top: -20px;
    left: 50%;
    transform: translateX(-50%);
    font-size: 2.2rem;
}

.winner-card:hover {
    transform: translateY(-12px) scale(1.03);
    box-shadow: 0 14px 35px rgba(0,0,0,0.18);
}

.winner-card.first {
    transform: scale(1.15);
    background: linear-gradient(135deg, #fff7db, #ffe59a);
    border: 3px solid #f5c400;
    z-index: 2;
}
.winner-card.second {
    background: linear-gradient(135deg, #f4f4f4, #e0e0e0);
    border: 2px solid #b0b0b0;
}
.winner-card.third {
    background: linear-gradient(135deg, #ffe8dc, #ffc5a6);
    border: 2px solid #e67e22;
}

/* --- Table Styling --- */
#overall-data-container table {
    width: 100%;
    border-collapse: separate;
    border-spacing: 0;
    margin-top: 40px;
    min-width: 600px;
    border-radius: 12px;
    overflow: hidden;
}

#overall-data-container th,
#overall-data-container td {
    padding: 14px 12px;
    text-align: center;
    font-size: 1rem;
}

#overall-data-container th {
    background: linear-gradient(90deg, #0b509d, #1a73e8);
    color: #fff;
    font-weight: 600;
    letter-spacing: 0.5px;
    text-transform: uppercase;
}

#overall-data-container tr {
    background: #fff;
}

#overall-data-container tr:nth-child(even) {
    background: #f9fbff;
}

#overall-data-container tr:hover {
    background: #f1f8ff;
    transition: background 0.3s ease;
}

/* Top 3 Highlight (Pastel Colors) */
tr.rank-1 {
    background: linear-gradient(90deg, #fff8e1, #ffecb3) !important;
    font-weight: bold;
}
tr.rank-2 {
    background: linear-gradient(90deg, #f5f5f5, #e0e0e0) !important;
    font-weight: bold;
}
tr.rank-3 {
    background: linear-gradient(90deg, #ffe0cc, #ffc299) !important;
    font-weight: bold;
}

/* Winner highlight (সবুজ) */
tr.winner {
    background: linear-gradient(90deg, #e6f9ec, #c8f7d2) !important;
    font-weight: bold;
}

/* Disqualified highlight (লাল) */
tr.disqualified {
    background: linear-gradient(90deg, #ffe5e5, #ffcccc) !important;
    color: #a10000;
    font-weight: bold;
}

/* Legend Section */
.legend {
    margin-top: 25px;
    text-align: left;
    font-size: 0.95rem;
    color: #444;
    display: flex;
    gap: 30px;
}
.legend p {
    margin: 6px 0;
    display: flex;
    align-items: center;
    gap: 8px;
}
.legend-box {
    width: 20px;
    height: 20px;
    display: inline-block;
    border-radius: 4px;
}
.winner-box {
    background: linear-gradient(90deg, #e6f9ec, #c8f7d2);
    border: 1px solid #2e7d32;
}
.disqualified-box {
    background: linear-gradient(90deg, #ffe5e5, #ffcccc);
    border: 1px solid #b71c1c;
}

/* Ovarll Ruslt Responsive */
@media (max-width: 768px) {
    #overall-data-container {
        padding: 8px;
    }

    #overall-data-container table {
        width: 100%;
        display: block;
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
        margin-top: 15px;
    }

    #overall-data-container th,
    #overall-data-container td {
        font-size: 0.7rem; /* আরও ছোট ফন্ট সাইজ */
        padding: 8px;
    }

    #overall-data-container th {
        padding: 8px;
    }

    #overall-data-container td {
        padding: 6px;
    }

    #overall-data-container .rank-1, 
    #overall-data-container .rank-2, 
    #overall-data-container .rank-3 {
        font-size: 0.7rem;
    }

    #top-3-container{
        margin-top: 70px;
        margin-bottom: 70px;
    }
}


/* Perosnal Result Page*/
/* ==== User Answer Card ==== */
.user-answer-card {
    margin-top: 15px;
    padding: 10px 20px;
    border-radius: 10px;
    font-size: 1rem;
    line-height: 1.6;
    position: relative;
    box-shadow: 0 2px 8px rgba(0,0,0,0.08);
    transition: all 0.3s ease;
}

/* সঠিক উত্তর */
.correct-answer-card {
    background: #e8f9f0;            /* হালকা সবুজ */
    border-left: 6px solid #28a745; /* গাঢ় সবুজ বর্ডার */
    color: #155724;
}
.correct-answer-card::before {
    /* content: "✅"; */
    font-size: 1.4rem;
    position: absolute;
    right: 15px;
    top: 50%;
    transform: translateY(-50%);
}

/* ভুল উত্তর */
.incorrect-answer-card {
    background: #fff3f3;            /* হালকা লাল */
    border-left: 6px solid #dc3545; /* গাঢ় লাল বর্ডার */
    color: #721c24;
}
.incorrect-answer-card::before {
    /* content: "❌"; */
    font-size: 1.4rem;
    position: absolute;
    right: 15px;
    top: 50%;
    transform: translateY(-50%);
}

/* সঠিক উত্তর টেক্সটকে হাইলাইট */
.correct-response-highlight {
    background: #ffe97a; /* হলুদ হাইলাইট */
    padding: 2px 6px;
    border-radius: 4px;
    font-weight: bold;
}

/* বিশেষ নোট (মাল্টি-আনসার) */
.special-note {
    margin-top: 10px;
    background: #f0f7ff;
    border-left: 4px solid #1a73e8;
    padding: 10px 15px;
    border-radius: 6px;
    font-size: 0.95rem;
    color: #333;
}

/* --- কন্টেইনার এবং হেডিং স্টাইল --- */

.main-card-title {
    color: #0b509d;
    font-size: 1.6rem;
    font-weight: 700;
    margin-bottom: 30px;
    padding-bottom: 10px;
    border-bottom: 1px solid #e0e0e0;
    text-align: left;
}

/* --- ব্যক্তিগত তথ্য গ্রিড লেআউট --- */
.personal-details-grid.half-ring-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); /* উইডথ আরও ছোট করা হলো */
    gap: 60px; 
    row-gap: 30px;
}

/* --- স্কোর ড্যাশবোর্ড স্টাইল (গ্রিডে আনার জন্য) --- */
.score-summary-area {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 60px; 
    padding-top: 20px;
    margin-top: 10px;
}
/* .score-card-ring{
    width: 100%;
} */
/* --- কার্ডের সাইজ ও স্টাইল (সব কার্ডের জন্য একই) --- */
.card {
    position: relative;
    display: flex;
    align-items: center;
    background: white;
    height: 85px; 
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    padding-left: 70px; 
    z-index: 1;
    overflow: visible; 
    /* width: 80%; */
}

.half-ring-wrapper {
    position: absolute;
    left: 0;
    top: 50%;
    transform: translate(-50%, -50%); /* রিং সম্পূর্ণ দেখানোর জন্য */
    z-index: 2;
}

.half-ring {
    width: 93px;
    height: 93px;
    border-radius: 50%;
    background: conic-gradient(var(--ring-color) 0deg 180deg, transparent 180deg 360deg);
    display: flex;
    justify-content: center;
    align-items: center;
}

.center-circle {
    width: 85px;
    height: 85px;
    background: white;
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 28px;
    color: var(--ring-color);
    box-shadow: 0 0 5px rgba(0, 0, 0, 0.1);
}

.card-content {
    z-index: 1;
}

.card-content h2 {
    margin: 0 0 3px;
    font-size: 0.9rem;
    color: #6c757d;
}

.card-content p {
    margin: 0;
    color: #343a40;
    font-size: 1.1rem;
    font-weight: 700;
    white-space: nowrap; 
    overflow: hidden;
    text-overflow: ellipsis; 
}

/* --- স্কোর ভ্যালু হাইলাইট করা --- */
.score-card-ring .card-content {
    font-size: 1.5rem; 
}


/* --- অন্যান্য প্রয়োজনীয় কন্টেইনার স্টাইল (পরিবর্তন করা হয়নি) --- */
.info-card-container {
    background-color: #f7f9fc;
    padding: 20px;
    border-radius: 10px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.08);
    margin-bottom: 40px;
    overflow-x: hidden; 
    padding-bottom: 40px;
}
.main-card-title {
    color: #0b509d;
    font-size: 1.6rem;
    font-weight: 700;
    margin-bottom: 30px;
    padding-bottom: 10px;
    border-bottom: 1px solid #e0e0e0;
    text-align: left;
}

.section-title-container {
    text-align: center;
    margin: 40px 0 30px 0; 
}

.section-title {
    display: inline-block;
    background-color: #0b509d;
    color: white;
    padding: 12px 35px;
    border-radius: 30px; 
    font-size: 1.6rem; 
    font-weight: 700;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2);
    letter-spacing: 0.5px; 
}

.card-parent-box{
    /* padding: 0 40px; */
    box-sizing: border-box;
    margin-left: 40px;
}


/* --- রেসপনসিভনেস (মোবাইল ডিভাইসের জন্য) --- */
@media (max-width: 768px) {
    .personal-details-grid.half-ring-grid, 
    .score-summary-area {
        grid-template-columns: 1fr; 
        gap: 30px;
    }
    .info-card-container{
        padding-bottom: 40px;
    }
    .card-parent-box{
        margin: 0;
    }
    .half-ring-card, .score-card-ring{
        height: 80px; 
        margin-left: 20px;
        width: 75%;
    }
    /* .card-parent-box{
        padding: 10px;
    } */
    .card-content h2 {
        font-size: 1rem; 
    }
    .card-content p {
        font-size: 0.9rem; 
    }
    .score-card-ring .card-content p {
        font-size: 1.1rem;
    }

    /* ring to square */
    .center-circle{
        width: 50px;
        height: 50px;
        border-radius: 5%;
    }
    .half-ring {
        width: 52px;
        height: 52px;
        border-radius: 5%;
        background: conic-gradient(var(--ring-color) 0deg 180deg, transparent 180deg 360deg);
    }
    .section-title{
        font-size: 0.9rem;
    }
    .card{
        padding-left: 50px;
        
    }
    #overall-data-container p{
        font-size: 1rem;
        margin-left: 10px;
    }
    .top-3-wrapper {
        flex-direction: column;
        align-items: center;
    }

    .winner-card.first { 
        order: 1; 
        width: 63%;
    }
    .winner-card.second { order: 2; width: 65%;}
    .winner-card.third { order: 3; width: 60%;}
}

/* === Leaderboard Section === */

.results-table.leaderboard {
  width: 100%;
  border-collapse: collapse;
  margin: 20px 0;
  font-size: 1.05rem;
  background: #fff;
  box-shadow: 0 4px 10px rgba(0,0,0,0.05);
  border-radius: 8px;
  overflow: hidden;
}

.results-table.leaderboard th {
  background: #0b509d;
  color: #fff;
  padding: 12px;
  text-align: center;
}

.results-table.leaderboard td {
  padding: 10px 15px;
  border-bottom: 1px solid #eee;
  text-align: center;
}

.results-table.leaderboard tr:nth-child(even) {
  background: #f9f9f9;
}

/* ব্যাজ */
.badge {
  display: inline-block;
  padding: 3px 8px;
  border-radius: 12px;
  font-size: 0.85rem;
  font-weight: bold;
  margin-left: 6px;
}

.badge.gold { background: #ffd70033; color: #d4a017; }
.badge.silver { background: #c0c0c033; color: #808080; }
.badge.bronze { background: #cd7f3233; color: #8b4513; }

.badge.disqualified {
  background: #ffcccc;
  color: #b30000;
}

/* বাতিল লাইন হাইলাইট */
.results-table.leaderboard tr.disqualified {
  background: #fff0f0;
  color: #b30000;
}

/* নাম বাম থেকে শুরু হবে ও বাম প্যাডিং থাকবে */


/* winners background */
.winner-first td { background-color: #cfffe5; }   /* light gold */
.winner-second td { background-color: #cfffe5; }  /* light silver */
.winner-third td { background-color: #cfffe5; }   /* light bronze */

/* disqualified rows (manual) */
.disqualified td { background-color: #ffdede; }


.leaderboard-note {
  margin-top: 15px;
  padding: 10px 15px;
  background: #f9f9f9;
  border: 1px solid #ddd;
  border-radius: 6px;
  font-size: 14px;
  color: #444;
  text-align: left;
}
.leaderboard-note p {
  margin: 4px 0;
}

/* ==== Inforgraphics */

.infographics-wrapper{
  display:flex;
  flex-wrap:wrap;
  gap:20px;
  margin-top:20px;
}
.infographics-left,.infographics-right{
  flex:1;
  min-width:280px;
  background:#fff;
  border-radius:8px;
  padding:15px;
  box-shadow:0 2px 6px rgba(0,0,0,0.1);
}

.info-right-title{
    text-align: center;
    margin-bottom: 40px;
}

.compact-wheel{max-width:220px; margin:auto;}
.metrics-list{margin-top:10px;}
.metric-card{padding:8px; margin:6px 0; background:#f9f9f9; border-radius:6px; font-size:14px;}
#tierLegend{margin-top:30px; font-size:14px;}
@media(max-width:768px){
  .infographics-wrapper{flex-direction:column;}
}



/* রেসপনসিভ */
@media (max-width: 768px) {
  .results-table.leaderboard th,
  .results-table.leaderboard td {
    font-size: 0.9rem;
    padding: 8px;
  }
}

/* === Footer Section === */
.site-footer {
  background-color: #1e293b;
  color: #e2e8f0;
  padding: 10px 40px 10px;
  margin-top: 150px;
  font-family: 'Noto Sans Bengali', sans-serif;
}

.footer-container {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  /* max-width: 1200px; */
  margin: auto;
}

.footer-section {
  flex: 1 1 220px;
  padding: 20px;
  position: relative;
}

.footer-section:last-child {
  border-right: none;
}

.footer-section h3 {
  font-size: 18px;
  margin-bottom: 10px;
  color: #ffffff;
}

.footer-section p {
  font-size: 14px;
  line-height: 1.6;
  color: #cbd5e1;
}

.social-icons {
  margin-top: 10px;
}

.social-icons a {
  display: inline-block;
  margin-right: 15px;
  margin-top: 6px;
  font-size: 14px;
  color: #38bdf8;
  text-decoration: none;
}

.social-icons a i {
  margin-right: 6px;
}

.social-icons a:hover {
  color: #0ea5e9;
  text-decoration: underline;
}

.footer-bottom {
  text-align: center;
  margin-top: 40px;
  border-top: 1px solid #334155;
  padding-top: 15px;
  font-size: 13px;
  color: #94a3b8;
}

/* Desktop view: Right vertical line between sections */
.footer-section:not(:last-child)::after {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: 1px;
  height: 100%;
  background-color: #334155; /* হালকা ধূসর লাইনের জন্য */
}


/* Mobile view: bottom horizontal line between sections */
@media (max-width: 768px) {
  .footer-section:not(:last-child)::after {
    width: 100%;
    height: 1px;
    bottom: 0;
    top: auto;
    left: 0;
    right: auto;
  }
}