/* ==========================================
   1. CORE BASE RESET & CORE PROPERTIES
   ========================================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem; /* Space for icons */
  font-family: inherit;
  font-size: 0.95rem;
  font-weight: 600;
  line-height: 1.5;
  text-align: center;
  text-decoration: none;
  vertical-align: middle;
  cursor: pointer;
  user-select: none;
  border: 1px solid transparent;
  border-radius: 0.375rem; /* 6px */
  padding: 0.625rem 1.25rem;
  background-color: transparent;
  color: #212529;
  
  /* Smooth interaction engine */
  transition: 
    background-color 0.2s ease-in-out,
    border-color 0.2s ease-in-out,
    color 0.2s ease-in-out,
    box-shadow 0.2s ease-in-out,
    transform 0.1s ease;
}

/* Base Click Active state */
.btn:active {
  transform: scale(0.98);
}

/* Focus indicator for keyboard navigation accessibility */
.btn:focus-visible {
  outline: 4px solid rgba(59, 130, 246, 0.4);
  outline-offset: 2px;
}

/* Disabled State */
.btn:disabled, 
.btn.disabled {
  opacity: 0.6;
  pointer-events: none;
  box-shadow: none !important;
}

/* ==========================================
   2. BUTTON SIZE MODIFIERS
   ========================================== */
.btn-sm { padding: 0.375rem 0.75rem; font-size: 0.77rem; border-radius: 0.25rem; }
.btn-lg { padding: 0.875rem 1.75rem; font-size: 1.1rem; border-radius: 0.5rem; }

/* ==========================================
   3. SHAPE MODIFIERS
   ========================================== */
.btn-pill { border-radius: 50rem !important; }
.btn-square { border-radius: 0rem !important; }

/* ==========================================
   4. SOLID BACKGROUND VARIANTS
   ========================================== */
.btn-primary {
  background-color: #3b82f6;
  border-color: #3b82f6;
  color: #ffffff;
}
.btn-primary:hover {
  background-color: #2563eb;
  border-color: #2563eb;
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.12);
  border: 1px solid rgba(255, 255, 255, 0.25);
  color: var(--primary) !important;  
  border-radius: 50px;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  transition: background 0.2s ease, border-color 0.2s ease;
}
.btn-secondary:hover {background: rgba(255, 255, 255, 0.2); border-color: rgba(255, 255, 255, 0.5); color: #fc6a03;
}

.btn-success {
  background-color: #10b981;
  border-color: #10b981;
  color: #ffffff;
}
.btn-success:hover {
  background-color: #059669;
  border-color: #059669;
}

.btn-danger {
  background-color: #ef4444;
  border-color: #ef4444;
  color: #ffffff;
}
.btn-danger:hover {
  background-color: #dc2626;
  border-color: #dc2626;
}

/* ==========================================
   5. OUTLINE LINED VARIANTS
   ========================================== */
.btn-outline-primary {
  border-color: #3b82f6;
  color: #3b82f6;
}
.btn-outline-primary:hover {
  background-color: #3b82f6;
  color: #ffffff;
}

.btn-outline-secondary {
  border-color: #cbd5e1;
  color: #334155;
}
.btn-outline-secondary:hover {
  background-color: #f8fafc;
  border-color: #94a3b8;
}

/* ==========================================
   6. MINIMALIST GHOST & LINK VARIANTS
   ========================================== */
.btn-ghost {
  color: #475569;
  border-color: transparent;
}
.btn-ghost:hover {
  background-color: #f1f5f9;
  color: #0f172a;
}

.btn-link {
  color: #3b82f6;
  border-color: transparent;
  background-color: transparent;
  padding-left: 0;
  padding-right: 0;
}
.btn-link:hover {
  color: #1d4ed8;
  text-decoration: underline;
}

/* ==========================================
   7. NEUMORPHIC SOFT LIGHT VARIANTS
   ========================================== */
.btn-soft-primary {
  background-color: #eff6ff;
  color: #1d4ed8;
}
.btn-soft-primary:hover {
  background-color: #dbeafe;
}

.btn-soft-danger {
  background-color: #fef2f2;
  color: #991b1b;
}
.btn-soft-danger:hover {
  background-color: #fee2e2;
}

/* ==========================================
   8. PREMIUM MICRO-EFFECTS (GRADIENTS & GLOW)
   ========================================== */
.btn-gradient {
  background: linear-gradient(135deg, #6366f1 0%, #a855f7 100%);
  color: white;
  border: none;
}
.btn-gradient:hover {
  filter: brightness(1.1);
  box-shadow: 0 4px 15px rgba(168, 85, 247, 0.4);
}

.btn-glow {
  background-color: #10b981;
  color: white;
  box-shadow: 0 0 0rem rgba(160, 185, 129, 0);
}
.btn-glow:hover {
  background-color: #059669;
  box-shadow: 0 0 20px rgba(16, 185, 129, 0.6);
}
/* ==========================================================================
       6. Premium Micro-Interaction Social Media Engine Styles
       ========================================================================== */
    .btn-social {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        gap: 0.5rem;
        font-size: 0.75rem !important; /* text-xs equivalent */
        font-weight: 700;
        text-transform: uppercase;
        letter-spacing: 0.025em;
        text-decoration: none !important;
        padding: 0.55rem 1rem;
        border-radius: 0.375rem; /* modern slight round */
        color: #ffffff !important;
        border: none;
        cursor: pointer;
        user-select: none;
        
        /* High Performance Animation Engine */
        transition: 
            background-color 0.2s cubic-bezier(0.4, 0, 0.2, 1),
            transform 0.1s ease,
            box-shadow 0.2s ease;
    }

    /* Spring-loaded click feedback */
    .btn-social:active {
        transform: scale(0.96);
    }

    /* Individual Brand Dynamic Colors */
    .btn-facebook { background-color: #1877f2; }
    .btn-facebook:hover { background-color: #145dbf; box-shadow: 0 4px 12px rgba(24, 119, 242, 0.3); }

    .btn-telegram { background-color: #26a5e4; }
    .btn-telegram:hover { background-color: #1e87bc; box-shadow: 0 4px 12px rgba(38, 165, 228, 0.3); }

    .btn-x { background-color: #000000; }
    .btn-x:hover { background-color: #262626; box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2); }

    .btn-linkedin { background-color: #0a66c2; }
    .btn-linkedin:hover { background-color: #084e93; box-shadow: 0 4px 12px rgba(10, 102, 194, 0.3); }