:root {
    --brand: #5b52f3;
    --brand-dark: #4338ca;
    --green: #10b981;
    --green-dark: #059669;
    --danger: #ef4444;
    --text: #111827;
    --muted: #6b7280;
    --white: #ffffff;
    --shadow-lg: 0 30px 80px rgba(0, 0, 0, 0.25);
    --shadow-brand: 0 16px 34px rgba(91, 82, 243, 0.30);
    --transition: all 0.28s ease;
  }

 
.middle-action {
  display: flex;
  flex-direction: column; /* vertical layout */
  gap: 15px;
  width: 200px;
    align-items: center;
}

/* Base button style */
.top-btn {
  flex: 1;
  min-width: 140px;
  padding: 14px 18px;
  border-radius: 50px;
  font-weight: bold;
  text-align: center;
  border: none;
  font-weight: bold;
  color: #fff;
  cursor: pointer;
  transition: 0.3s;
}

/* Individual button colors */
.bijoy {
  background: linear-gradient(45deg, #10B981, #2575fc);
}

.unicode {

   background: linear-gradient(135deg, #10B981, #FF0000);
}

.btn-undo-text   {
  flex: 1;
  min-width: 140px;
  padding: 14px 18px;
  border-radius: 50px;
  background: linear-gradient(45deg, #ff416c, #ff4b2b);
} 
  
  
.bijoy_textarea {
    width: 98%;
    height: 200px;
    font-family: SutonnyMJ;
    font-size: 20px;
    color: #000;
    border: 1px solid #999;
    outline: none;
    border-radius: 5px;
    -moz-border-radius: 5px;
    -webkit-border-radius: 5px;
    padding: 5px
}

.bijoy_textarea:focus {
    width: 98%;
    height: 200px;
    font-family: SutonnyMJ;
    color: #000;
    border: 1px solid #5ab4e6;
    box-shadow: 0 0 5px #7dbef1;
    -moz-box-shadow: 0 0 5px #7dbef1;
    -webkit-box-shadow: 0 0 5px #7dbef1
}


.unicode_textarea {
    width: 98%;
    height: 200px;
    font-family: solaimanLipi;
    font-size: 18px;
    color: #000;
    border: 1px solid #999;
    outline: none;
    border-radius: 5px;
    -moz-border-radius: 5px;
    -webkit-border-radius: 5px;
    padding: 5px
}

.unicode_textarea:focus {
    width: 98%;
    height: 200px;
    border: 1px solid #5ab4e6;
    box-shadow: 0 0 5px #7dbef1;
    -moz-box-shadow: 0 0 5px #7dbef1;
    -webkit-box-shadow: 0 0 5px #7dbef1
}
  
.converter-grid {
  padding: 10px;
  border-radius: 26px;
  width: 100%;
}

  .converter-header {
    text-align: center;
    margin-bottom: 26px;
    padding-right: 60px;
  }

  .converter-header-line {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 14px;
    flex-wrap: nowrap;
    margin-bottom: 12px;
  }

  .converter-title-icon {
    width: 60px; height: 60px;
    border-radius: 18px;
    display: flex; align-items: center; justify-content: center;
    background: linear-gradient(135deg, rgba(91, 82, 243, 0.12), rgba(67, 56, 202, 0.18));
    color: var(--brand);
    font-size: 24px;
    box-shadow: inset 0 0 0 1px rgba(91, 82, 243, 0.10);
    flex-shrink: 0;
  }

  .converter-header h3 {
    font-size: 32px;
    font-weight: 900;
    line-height: 1.2;
    white-space: nowrap;
    background: linear-gradient(135deg, var(--brand), var(--brand-dark));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    margin: 0;
  }

  .converter-header p {
    max-width: 760px;
    margin: 0 auto;
    color: var(--muted);
    font-size: 15px;
    line-height: 1.8;
  }

  .converter-error-text {
    display: none;
    margin-bottom: 18px;
    text-align: center;
    color: #b91c1c;
    background: #fef2f2;
    border: 1px solid #fecaca;
    border-radius: 16px;
    padding: 13px 16px;
    font-size: 15px;
    font-weight: 700;
  }

  .converter-top-bar {
    display: flex;
    justify-content: space-between;
    align-items: end;
    gap: 16px;
    margin-bottom: 24px;
    flex-wrap: wrap;
    background: linear-gradient(180deg, #f7f8fb, #f1f3f7);
    border: 1px solid #e6e9f0;
    border-radius: 26px;
    padding: 18px;
  }

  .direction-wrap { flex: 1; min-width: 240px; }

  .direction-wrap label {
    display: block;
    margin-bottom: 10px;
    font-size: 14px;
    font-weight: 800;
    color: #374151;
  }

  #convertMode {
    width: 100%;
    height: 54px;
    border: 2px solid #d7dce5;
    border-radius: 16px;
    padding: 0 14px;
    font-size: 15px;
    font-weight: 700;
    outline: none;
    background: #fff;
  }

  .top-buttons { display: flex; gap: 12px; flex-wrap: wrap; }


  .top-btn:hover { transform: translateY(-2px); }

  .text-card {
    border-radius: 28px;
    padding: 20px;
    display: flex;
    flex-direction: column;
  }

  .input-card {
    background: linear-gradient(180deg, #f7f8fb, #f1f3f7);
    border: 1px solid #e6e9f0;
  }

  .output-card {
    background: linear-gradient(180deg, #eef8f3, #e8f7ef);
    border: 2px dashed rgba(16, 185, 129, 0.95);
  }

  .text-card-head {
    display: flex;
    justify-content: space-between;
    gap: 12px;
    align-items: center;
    flex-wrap: wrap;
    margin-bottom: 14px;
  }

  .text-card-head span {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 15px;
    font-weight: 800;
    color: #374151;
    background: rgba(255,255,255,0.65);
    padding: 10px 14px;
    border-radius: 999px;
    border: 1px solid rgba(209, 213, 219, 0.75);
  }

  .mini-actions { display: flex; gap: 10px; flex-wrap: wrap; }

  .mini-btn {
    border: none;
    border-radius: 14px;
    padding: 10px 14px;
    font-size: 13px;
    font-weight: 800;
    cursor: pointer;
    transition: var(--transition);
    background: #fff;
    color: #374151;
    border: 1px solid #d1d5db;
  }

  .success-mini {
    background: linear-gradient(135deg, var(--green), var(--green-dark));
    color: #fff;
    border: none;
  }

  .danger-mini {
    background: linear-gradient(135deg, #ef4444, #dc2626);
    color: #fff;
    border: none;
  }

  .mini-btn:hover { transform: translateY(-1px); }

  #inputText, #outputText {
    width: 100%;
    flex: 1;
    min-height: 300px;
    resize: vertical;
    border: 2px solid #d7dce5;
    border-radius: 22px;
    padding: 18px;
    font-size: 20px;
    line-height: 1.9;
    font-family: 'Noto Sans Bengali', 'SolaimanLipi', Arial, sans-serif;
    color: var(--text);
    background: #fff;
    outline: none;
    transition: var(--transition);
  }

  #inputText:focus {
    border-color: var(--brand);
    box-shadow: 0 0 0 5px rgba(91, 82, 243, 0.12);
  }

  #outputText { background: #fcfffd; }

  .counter-row {
    display: flex;
    justify-content: space-between;
    gap: 10px;
    margin-top: 14px;
    font-size: 14px;
    color: var(--muted);
    font-weight: 700;
    flex-wrap: wrap;
  }

/* ===== HORIZONTAL BUTTON LAYOUT ===== */
.middle-action {
  display: flex;
  flex-direction: row;   /* horizontal */
  gap: 12px;
  justify-content: center;
  align-items: center;
  width: 100%;
  flex-wrap: wrap; /* responsive wrap */
  margin: 10px 0;
}



 /* ===== FIX SWAP BUTTON (DESKTOP + MOBILE PERFECT) ===== */
.swap-circle-btn {
  flex: 1;
  min-width: 140px;
  height: auto;
  padding: 14px 18px;
  border-radius: 50px; /* same as other buttons */
  border: none;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-size: 14px;
  font-weight: 700;
  background: linear-gradient(135deg, var(--brand), var(--brand-dark));
  color: #fff;
  box-shadow: 0 10px 25px rgba(0,0,0,0.15);
  transition: 0.25s;
}

/* ICON SPACING */
.swap-circle-btn i {
  font-size: 16px;
}

/* HOVER */
.swap-circle-btn:hover {
  transform: translateY(-2px) scale(1.03);
}

/* CLICK EFFECT */
.swap-circle-btn:active {
  transform: scale(0.96);
}


  
  

  .bottom-tools {
    display: flex;
    justify-content: center;
    gap: 14px;
    flex-wrap: wrap;
    margin-top: 26px;
  }

  .bottom-btn {
    border: none;
    border-radius: 16px;
    padding: 14px 20px;
    font-size: 15px;
    font-weight: 800;
    cursor: pointer;
    transition: var(--transition);
  }

  .copy-all-btn {
    background: linear-gradient(135deg, var(--green), var(--green-dark));
    color: #fff;
  }

  .download-btn {
    background: linear-gradient(135deg, var(--brand), var(--brand-dark));
    color: #fff;
  }

  .clear-btn {
    background: #f8fafc;
    color: #374151;
    border: 1px solid #d1d5db !important;
  }

  .bottom-btn:hover { transform: translateY(-2px); }

  .converter-note {
    margin-top: 20px;
    padding: 16px 18px;
    border-radius: 18px;
    background: #fffbeb;
    border: 1px solid #fde68a;
    color: #92400e;
    font-size: 14px;
    font-weight: 700;
    line-height: 1.8;
    display: flex;
    gap: 10px;
    align-items: flex-start;
  }

  .converter-toast {
    position: fixed;
    left: 50%;
    bottom: 28px;
    transform: translateX(-50%) translateY(20px);
    background: #111827;
    color: #fff;
    padding: 14px 18px;
    border-radius: 14px;
    font-size: 14px;
    font-weight: 700;
    box-shadow: 0 16px 32px rgba(0,0,0,0.22);
    opacity: 0;
    visibility: hidden;
    transition: all 0.28s ease;
    z-index: 1000000;
    text-align: center;
    max-width: calc(100% - 24px);
  }

  .converter-toast.show {
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) translateY(0);
  }

  @media (max-width: 991px) {
    .converter-header h3 { font-size: 26px; }
    .converter-grid { grid-template-columns: 1fr; }
    .middle-action { order: 2; }

  }

  @media (max-width: 768px) {
    .converter-header { padding-right: 48px; }
    .converter-title-icon { width: 48px; height: 48px; border-radius: 14px; font-size: 20px; }
    .converter-header h3 { font-size: 18px; white-space: nowrap; }
    .converter-header p { font-size: 13px; line-height: 1.7; }
    .converter-top-bar { padding: 14px; }
    .top-buttons { width: 100%; flex-direction: column; }
    .top-btn { width: 100%; }
    .text-card { min-height: auto; padding: 16px; border-radius: 22px; }
    #inputText, #outputText { min-height: 220px; font-size: 18px; border-radius: 18px; line-height: 1.85; }
    .bottom-tools { flex-direction: column; }
    .bottom-btn { width: 100%; }
    .converter-note { font-size: 13px; line-height: 1.7; }
    .middle-action { flex-direction: row; /* stack on mobile */}
    .top-btn, .btn-undo-text { width: 100%; }
    .swap-circle-btn { width: 100%; border-radius: 50px;}  

  }
  
  @media (max-width: 420px) {
    .converter-header h3 { font-size: 16px; }
    .converter-title-icon { width: 44px; height: 44px; font-size: 18px; }
    #inputText, #outputText { font-size: 17px; }
  }
  
  
/* ===== BUTTON CLICK EFFECT ===== */
.top-btn:active,
.btn-undo-text:active,
.bottom-btn:active,
.mini-btn:active {
  transform: scale(0.96);
}

/* ===== SMOOTH FADE-IN ON LOAD ===== */
.converter-grid,
.converter-header,
.text-card,
.middle-action,
.bottom-tools {
  animation: fadeUp 0.6s ease;
}

@keyframes fadeUp {
  from {
    opacity: 0;
    transform: translateY(25px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ===== TEXTAREA FOCUS GLOW PULSE ===== */
.bijoy_textarea:focus,
.unicode_textarea:focus {
  animation: glowPulse 1.5s infinite alternate;
}

@keyframes glowPulse {
  from {
    box-shadow: 0 0 0 3px rgba(91,82,243,0.10);
  }
  to {
    box-shadow: 0 0 0 6px rgba(91,82,243,0.20);
  }
}

/* ===== HOVER FLOAT EFFECT ===== */
.text-card:hover {
  transform: translateY(-6px) scale(1.01);
}

/* ===== BUTTON SHINE EFFECT ===== */
.top-btn {
  position: relative;
  overflow: hidden;
}

.top-btn::after {
  content: "";
  position: absolute;
  top: 0;
  left: -75%;
  width: 50%;
  height: 100%;
  background: linear-gradient(120deg, transparent, rgba(255,255,255,0.4), transparent);
  transform: skewX(-25deg);
}

.top-btn:hover::after {
  animation: shine 0.8s;
}

@keyframes shine {
  100% {
    left: 125%;
  }
}



/* ===== TOAST ANIMATION ===== */
.converter-toast.show {
  animation: toastPop 0.4s ease;
}

@keyframes toastPop {
  from {
    transform: translateX(-50%) translateY(30px) scale(0.9);
    opacity: 0;
  }
  to {
    transform: translateX(-50%) translateY(0) scale(1);
    opacity: 1;
  }
}